CN201596813U - Lig saw quick changeable chuck mechanism - Google Patents
Lig saw quick changeable chuck mechanism Download PDFInfo
- Publication number
- CN201596813U CN201596813U CN2009202013532U CN200920201353U CN201596813U CN 201596813 U CN201596813 U CN 201596813U CN 2009202013532 U CN2009202013532 U CN 2009202013532U CN 200920201353 U CN200920201353 U CN 200920201353U CN 201596813 U CN201596813 U CN 201596813U
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- driving lever
- saw blade
- support
- saw
- movable axis
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Abstract
The utility model discloses a lig saw quick changeable chuck mechanism, which is provided with a support connected onto a lig saw handle. A support bottom plate arranged on the support is used for positioning a saw blade, a compression device for compressing the saw blade on the support bottom plate, and a locking device for locking the compression device are fixed on the support, the locking device includes a driving lever, a return torsion spring and a movable shaft, and the compression device is a pressing block. The mechanism uses the lever principle among the driving lever, the movable shaft and the pressing block, a user only needs to use small force to wrench the driving lever so as to release the saw blade for replacement, the driving lever only needs to be released after a displaced saw blade is disposed, and the saw blade is automatically clamped to bring extremely convenient operation and difficult loosening of the saw blade, thereby being safe and reliable. Additionally, the movable shaft has a pre-tightening effect in clamping process and leads a fixed end of the saw blade in working state to have a buffer zone so as to be difficult for breaking, thereby prolonging service life.
Description
Technical field
The utility model relates to the saw blade quick-changing mechanism, particularly a kind of sweep-saw quick chuck mechanism.
Background technology
Multiple sweep-saw on sale on the present market, its chuck mechanism has the locking of the spiral of employing, pin locking or clamping locking, as the utility model patent of China national Department of Intellectual Property at Granted publication on the 24th November in 2004, notification number is CN2657837Y, a kind of sweep-saw saw blade quick chuck is disclosed in this patent specification, its locking device utilizes the spring force of torsionspring to act on the pressure strip, by pressure strip saw blade is pressed abd fixed in the chuck mechanism then, the axis of the center of rotation of pressure strip and saw blade axially parallel, laterally cut saw blade when pressure strip compresses saw blade and clamp saw blade then, so the clamping force that saw blade is subjected in the horizontal is also inhomogeneous, and the process of neither one pretension, during sweep-saw work, saw blade is done quick reciprocating motion on axially promptly vertically, saw blade does not hold and tightly may throw off like this, and is dangerous, hold too tightly and may fracture because stress concentrates, reduce service life.
The utility model content
Problem to be solved in the utility model just provides a kind of sweep-saw quick chuck mechanism, and is simple in structure, easy to operate, safe and reliable, change fast, and makes saw blade stressed evenly when clamping saw blade, avoids stress to concentrate and damage.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of sweep-saw quick chuck mechanism, has a support that is connected on the sweep-saw, support is provided with the support base plate of location saw blade, be fixed with the hold down gag that saw blade is pressed on the support base plate and the locking device of locking hold down gag on the described support, it is characterized in that: described locking device has the operating structure of end switching on support, support is provided with and makes the rotating elastic recovery structure of operating structure, described hold down gag switching is on support, also be provided with the chucking structure of the described hold down gag of chucking on described operating structure, described chucking structure and hold down gag are arranged on the same side of support base plate.
Further, described operating structure is a driving lever, and the stiff end of described driving lever by driving lever is connected on the support and around locating shaft by locating shaft and rotates.
Further, described elastic recovery structure is made of at least one reduction torsion spring, described reduction torsion spring is sleeved on the described locating shaft, and an end of reduction torsion spring is fixed on the stiff end of driving lever, and the other end tension of reduction torsion spring is stuck in the driving lever inboard and moves with the driving lever rotation.
Further, described chucking structure is to be installed on the movable axis that moves with driving lever on the driving lever, described movable axis moves along the support backplate surface, the middle part of described driving lever is provided with the through hole one that installs movable axis, described through hole one driving lever vertically on be arranged to strip, described movable axis is mobile through hole one in.
Further, described hold down gag is a briquetting, and described briquetting is connected on the support by locating shaft and rotates around locating shaft, and described briquetting is provided with the inclined-plane that contacts with described movable axis and the aft mounted jacking block that compresses saw blade on the inclined-plane.
Further, described support is provided with side plate in the both sides of support base plate, described side plate is provided with the through hole two that installs described locating shaft, is provided with the groove of strip on the described side plate with through hole one corresponding position, and described movable axis passes groove and moves in groove.
Preferably, described groove and support base plate is surperficial parallel.
After adopting technique scheme, the utlity model has following advantage: utilize lever principle, only need a user to use little force just can pull driving lever and change, get final product and only need unclamp driving lever when putting into the saw blade of finishing changing to unclamp saw blade, saw blade clamps automatically, and operation is very easy; Jacking block on the briquetting and movable axis are to active force other active forces except thrust of saw blade all the time on the vibration-direction when vertically promptly the working of saw blade, it is loosening to make saw blade be difficult for like this, safe and reliable, and movable axis snaps in the effect that a pretension is arranged in the process, the stiff end that makes saw blade has a buffer strip in working order the time, frangibility does not increase the service life; The bending-twisting ability of reduction torsion spring is strong, movable axis is contacted all the time and with inclined-plane jack-up with the inclined-plane, thereby make the jacking block of briquetting compress the support base plate all the time, and along with the lifting of jacking block, the inclined-plane become big to the active force of movable axis, and movable axis is subjected to driving lever spacing, final inclined-plane is pressed in movable axis on the support base plate, and therefore after inserting saw blade between briquetting and the support base plate, the thrust of jacking block is bigger, movable axis is also auxiliary simultaneously compresses saw blade, compresses better effects if.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the internal structure schematic diagram of a kind of embodiment of the utility model;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the right view of Fig. 2;
Fig. 4 is the vertical view of Fig. 2;
Action schematic diagram when Fig. 5 unclamps for the utility model;
Action schematic diagram when Fig. 6 locks for the utility model.
The specific embodiment
The structural representation of a kind of embodiment of the utility model shown in Fig. 1 to 4, a kind of sweep-saw quick chuck mechanism, comprise support 1, compress the hold down gag of saw blade 7 and the locking device of locking hold down gag, and locking device comprises driving lever 2, reduction torsion spring 3 and movable axis 4, and hold down gag is a briquetting 6; Described support 1 comprises support base plate 11 and the side plate 12 that is provided with in support base plate both sides, and side plate 12 is provided with through hole two, installs locating shaft 5 in the through hole two, and the stiff end 21 of driving lever 2 by driving lever is fixed on the support 1 and around locating shaft 5 by locating shaft 5 and rotates; For simplified structure, reduction torsion spring 3 is sleeved on the locating shaft 5, the two ends of reduction torsion spring 3 are fixed on the stiff end 21 of driving lever, the mid portion of reduction torsion spring 3 is arranged to the U-shaped tension, and to be stuck in driving lever 2 inboard and rotate with driving lever and to move, also available two reduction torsion springs 3 are sleeved on the locating shaft 5, reduction torsion spring 3 is fixed on the stiff end 21 of driving lever at an end of locating shaft 5 spindle noses, reduction torsion spring 3 be positioned in the middle of the locating shaft 5 an end then tension be stuck in driving lever 2 inboards, if want to increase the effect of saw blade locking, several reduction torsion springs also can be set more, just when the replacing saw blade need unclamp chuck mechanism, can increase resistance; The middle part of driving lever 2 is provided with through hole 1, movable axis 4 is arranged to optical axis and is installed in the through hole 1 and with driving lever and moves, through hole 1 is arranged to strip, the influence of avoiding movable axis 4 to be subjected to driving lever 2 to rotate and move on vertically promptly parallel with the radius of gyration of the driving lever direction of driving lever; For simplified structure, described briquetting 6 is fixed on the support and around locating shaft 5 by locating shaft 5 and rotates, be provided with the inclined-plane 61 that contacts with described movable axis 4 and the aft mounted jacking block 62 that compresses saw blade with briquetting 6 on the inclined-plane, if briquetting 6 does not use identical rotating shaft to fix with driving lever 2, also can be provided with separately, but will make inclined-plane 61 and jacking block 62 and movable axis 4 the same side at support base plate 11; Be provided with the groove 121 of strip on the described side plate 12 with through hole one 22 corresponding positions, groove 121 is surperficial parallel with support base plate 11, movable axis 4 passes groove and moves in groove, the size of groove 121 will make movable axis 4 freely to install, and groove 121 is provided with the position and wants suitably, guarantee to insert after the saw blade 7, movable axis 4 freely contacts with saw blade 7.
The utility model utilizes the lever principle between driving lever, movable axis and the briquetting, only needing the user to use little force just can pull driving lever changes to unclamp saw blade, get final product and only need unclamp driving lever when putting into the saw blade of finishing changing, utilize the effect that automatically replies of reduction torsion spring, saw blade clamps automatically, and operation is very easy; Jacking block on the briquetting and movable axis are to active force other active forces except thrust of saw blade all the time on the vibration-direction when vertically promptly the working of saw blade, it is loosening to make saw blade be difficult for like this, safe and reliable, and movable axis snaps in the effect that a pretension is arranged in the process, the stiff end that makes saw blade has a buffer strip in working order the time, frangibility does not increase the service life; The bending-twisting ability of reduction torsion spring is strong, movable axis is contacted all the time and with inclined-plane jack-up with the inclined-plane, thereby make the jacking block of briquetting compress the support base plate all the time, and along with the lifting of jacking block, the inclined-plane become big to the active force of movable axis, and movable axis is subjected to driving lever spacing, final inclined-plane is pressed in movable axis on the support base plate, and therefore after inserting saw blade between briquetting and the support base plate, the thrust of jacking block is bigger, movable axis is also auxiliary simultaneously compresses saw blade, compresses better effects if.
When existing saw blade need change or not have saw blade to need new clothes in chuck mechanism, at first to unclamp locking device, as shown in Figure 5, the I place initiatively does, the user stirs driving lever 2, driving lever 2 drives movable axis 4 away from inclined-plane 61, meanwhile the U-shaped section of reduction torsion spring 3 is bent tight owing to driving lever 2 rotates, because movable axis 4 is away from inclined-plane 61, make inclined-plane 61 gravitates and fall, jacking block 62 liftings thus, if in the chuck mechanism existing saw blade then jacking block 62 separate with saw blade 7, if no saw blade then jacking block 62 separate with support base plate 11, form the space between briquetting 6 and the support base plate 11, insert new saw blade on earth if the saw blade that existing saw blade then will be changed in the chuck mechanism is extracted the back out this moment, gets final product if no saw blade then directly is inserted into saw blade 7 end, and so far the first step is finished; Second step of replacing process as shown in Figure 6, the II place initiatively does, the user is after new saw blade is inserted well, unclamp driving lever 2, this moment, the bending power of reduction torsion spring 3 worked, the U-shaped section returns to normal automatically, driving lever 2 inboards are withstood driving lever is rotated, driving lever 2 drives movable axis 4 near inclined-plane 61 and then contact, and along with the U-shaped section of reduction torsion spring 3 is constantly recovered, movable axis 4 is gradually with inclined-plane 61 jack-up, and then make jacking block 62 declines push down saw blade 7, after movable axis 4 and inclined-plane 61 chuckings can not move again, jacking block 62 compressed saw blade 7, and so far saw blade is changed and finished, if it is good inadequately that the user feels to compress effect, also driving lever 2 firmly can be pulled along the direction of motion shown in Figure 6 again and got final product, make movable axis 4 snap in the inclined-plane 61 of briquetting 6 and the space between the support base plate 11 by reduction torsion spring 3 effects like this, and then make inclined-plane 61 risings of briquetting, the jacking block 62 of briquetting moves downward and withstands saw blade 7 simultaneously, saw blade 7 is pressed on the support base plate 11, simple to operate, convenient and swift.
Except that above preferred embodiment, the utility model also has other embodiment, those skilled in the art can make various changes and distortion according to the utility model, only otherwise break away from spirit of the present utility model, all should belong to the defined scope of the utility model claims.
Claims (7)
1. sweep-saw quick chuck mechanism, has a support (1) that is connected on the curve saw handle, support (1) is provided with the support base plate (11) of location saw blade (7), be fixed with on the described support (1) with saw blade (7) be pressed on the support base plate (11) hold down gag and locking hold down gag locking device, it is characterized in that: described locking device has the operating structure of end switching on support (1), support (1) is provided with and makes the rotating elastic recovery structure of operating structure, described hold down gag switching is on support (1), also be provided with the chucking structure of the described hold down gag of chucking on described operating structure, described chucking structure and hold down gag are arranged on the same side of support base plate (11).
2. a kind of sweep-saw quick chuck according to claim 1 mechanism, it is characterized in that: described operating structure is a driving lever (2), and the stiff end (21) of described driving lever (2) by driving lever is connected support (1) by locating shaft (5) and goes up and rotate around locating shaft (5).
3. a kind of sweep-saw quick chuck according to claim 1 and 2 mechanism, it is characterized in that: described elastic recovery structure is made of at least one reduction torsion spring (3), described reduction torsion spring (3) is sleeved on the described locating shaft (5), one end of reduction torsion spring (3) is fixed on the stiff end (21) of driving lever, and the other end tension of reduction torsion spring (3) is stuck in driving lever (2) inboard and moves with the driving lever rotation.
4. a kind of sweep-saw quick chuck according to claim 1 and 2 mechanism, it is characterized in that: described chucking structure is for being installed on the movable axis (4) that moves with driving lever on the driving lever (2), described movable axis (4) moves along support base plate (11) surface, the middle part of described driving lever (2) is provided with the through hole one (22) that installs movable axis, described through hole one (22) driving lever vertically on be arranged to strip, described movable axis (4) is mobile through hole one (22) in.
5. a kind of sweep-saw quick chuck according to claim 1 and 2 mechanism, it is characterized in that: described hold down gag is a briquetting (6), described briquetting (6) is connected by locating shaft (5) that support (1) is gone up and rotates around locating shaft (5), and described briquetting (6) is provided with the inclined-plane (61) that contacts with described movable axis (4) and the aft mounted jacking block (62) that compresses saw blade on the inclined-plane.
6. a kind of sweep-saw quick chuck according to claim 1 mechanism, it is characterized in that: described support (1) is provided with side plate (12) in the both sides of support base plate (11), described side plate (12) is provided with the through hole two that installs described locating shaft (5), on the described side plate (12) and through hole one (22) corresponding position is provided with the groove (121) of strip, and described movable axis (4) passes groove and moves in groove.
7. a kind of sweep-saw quick chuck according to claim 6 mechanism, it is characterized in that: described groove (121) is surperficial parallel with support base plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202013532U CN201596813U (en) | 2009-12-01 | 2009-12-01 | Lig saw quick changeable chuck mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202013532U CN201596813U (en) | 2009-12-01 | 2009-12-01 | Lig saw quick changeable chuck mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201596813U true CN201596813U (en) | 2010-10-06 |
Family
ID=42807861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202013532U Expired - Fee Related CN201596813U (en) | 2009-12-01 | 2009-12-01 | Lig saw quick changeable chuck mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201596813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385480A (en) * | 2018-04-17 | 2019-10-29 | 苏州宝时得电动工具有限公司 | Reciprocating power tool and clamping device for reciprocating power tool |
-
2009
- 2009-12-01 CN CN2009202013532U patent/CN201596813U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110385480A (en) * | 2018-04-17 | 2019-10-29 | 苏州宝时得电动工具有限公司 | Reciprocating power tool and clamping device for reciprocating power tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20141201 |
|
| EXPY | Termination of patent right or utility model |