CN109332810B - Quick-change chuck and reciprocating saw - Google Patents
Quick-change chuck and reciprocating saw Download PDFInfo
- Publication number
- CN109332810B CN109332810B CN201811262428.8A CN201811262428A CN109332810B CN 109332810 B CN109332810 B CN 109332810B CN 201811262428 A CN201811262428 A CN 201811262428A CN 109332810 B CN109332810 B CN 109332810B
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- saw blade
- groove
- rotating sleeve
- locking
- reciprocating rod
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- 238000009434 installation Methods 0.000 claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 206010053615 Thermal burn Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
- B23D51/08—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools
- B23D51/10—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of devices for mounting straight saw blades or other tools for hand-held or hand-operated devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D49/00—Machines or devices for sawing with straight reciprocating saw blades, e.g. hacksaws
- B23D49/10—Hand-held or hand-operated sawing devices with straight saw blades
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
The invention discloses a quick-change chuck and a reciprocating saw, which comprises a saw blade, a reciprocating rod and a locking device, wherein the saw blade comprises a clamping end and a mounting protrusion connected with the clamping end, one end of the reciprocating rod is provided with a locking groove, and the locking device comprises: the locking mechanism comprises a rotating sleeve sleeved at the end part of the reciprocating rod, a torsion spring for connecting the rotating sleeve and the reciprocating rod, and a limiting plate arranged on the rotating sleeve to prevent the mounting bulge from separating from the rotating sleeve, and the rotating sleeve is rotationally connected with the reciprocating rod; the saw blade seat is in sliding connection with the locking groove and comprises a saw blade groove for installing the clamping end; the elastic component is positioned in the locking groove, and pushes the saw blade away from the reciprocating rod by pushing the saw blade seat or compresses the installation bulge on the limiting plate by pushing the saw blade seat; the positioning assembly for positioning the rotating sleeve is arranged on the reciprocating rod and between the locking devices, and the saw blade can be installed and locked only by inserting the saw blade into the saw blade groove, so that the operation is simple and convenient.
Description
Technical Field
The invention belongs to the field of electric tools, and particularly relates to a quick-change chuck and a reciprocating saw.
Background
Reciprocating saws are tools that cut a variety of materials by the reciprocating and oscillating action of a saw blade, and existing reciprocating saws generally include a reciprocating bar and a saw blade attached thereto that is typically fixedly attached to the bar by a chuck assembly that is required to be replaced from time to time after the saw blade has become dull or damaged.
At present, most of reciprocating saws (including curve saws) in the market need to be manually operated when the blades are replaced, namely, after one hand rotates a locking rotary disc to a certain angle when the blades are assembled, the other hand inserts the saw blade into a saw blade seat, and then the saw blade can be locked only by loosening the hand, so that the operation is very complicated; when the saw blade is detached, the saw blade needs to be taken out manually, and because the temperature of the saw blade is higher when the reciprocating saw finishes cutting work, a user is easy to scald when the user takes out the used saw blade manually.
Disclosure of Invention
The invention aims to provide a quick-change chuck capable of automatically locking a saw blade.
In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a quick change chuck, includes saw bit, reciprocating lever and connects the locking device of saw bit and reciprocating lever, and the saw bit includes cutting end, clamping end and the installation arch that links to each other with the clamping end, and the one end of reciprocating lever orientation saw bit is provided with the locking groove, and locking device includes: the locking mechanism comprises a rotating sleeve sleeved at the end part of the reciprocating rod, a torsion spring for connecting the rotating sleeve and the reciprocating rod, and a limiting plate arranged on the rotating sleeve to prevent the mounting bulge from separating from the rotating sleeve, and the rotating sleeve is rotationally connected with the reciprocating rod; the saw blade seat is in sliding connection with the locking groove and comprises a saw blade groove for installing the clamping end; the elastic component is positioned in the locking groove, and pushes the saw blade away from the reciprocating rod by pushing the saw blade seat or compresses the installation bulge on the limiting plate by pushing the saw blade seat; a positioning component for positioning the rotating sleeve is arranged between the reciprocating rod and the locking device.
Further, the locating component comprises a locating groove positioned on the rotating sleeve, a through hole arranged on the reciprocating rod and an avoidance groove arranged on the saw blade seat, and a locating piece extending into the avoidance groove or the locating groove is connected in a sliding manner in the through hole.
Further, the positioning piece is a steel ball.
Further, the rotating sleeve comprises a locking sleeve sleeved with the reciprocating rod and an outer rotating sleeve sleeved on the outer side of the locking sleeve, a limiting boss is arranged in the outer rotating sleeve, one end of the locking sleeve is provided with a limiting rib propped against the limiting boss, the other end of the locking sleeve is clamped with a check ring propped against the end part of the outer rotating sleeve, the check ring and the limiting rib jointly clamp the outer rotating sleeve so as to prevent the outer rotating sleeve from moving along the axial direction, and an inserting piece and an inserting groove for preventing the outer rotating sleeve from rotating relative to the locking sleeve are arranged between the outer rotating sleeve and the locking sleeve.
Further, a limiting groove for limiting the rotation angle of the locking sleeve is formed in the locking sleeve, and a limiting pin matched with the limiting groove is arranged on the reciprocating rod.
Further, the locking sleeve is provided with a limiting bulge, the reciprocating rod is provided with a ring groove matched with the limiting bulge, and the locking sleeve is rotationally connected with the reciprocating rod through the limiting bulge and the ring groove.
Further, a poking bulge is arranged on the outer rotating sleeve, and a first torsion spring groove and a second torsion spring groove which are used for fixing two ends of the torsion spring are respectively arranged on the poking bulge and the reciprocating rod.
Further, a guide hole is formed in the reciprocating rod, a guide protrusion penetrates through the guide hole, and a guide groove matched with the guide protrusion to prevent the saw blade seat from being separated from the reciprocating rod is formed in the saw blade seat.
Further, a guide inclined plane connected with the limiting plate is arranged in the rotating sleeve.
Compared with the prior art, the invention has the beneficial effects that:
1. when the saw blade is required to be installed, the saw blade is held to be inserted into the saw blade groove, the saw blade pushes the saw blade seat to move towards the direction of the elastic component through the saw blade groove, the elastic component is compressed, meanwhile, along with the movement of the saw blade seat, the positioning component does not limit the locking device and the reciprocating rod any more, so that the rotating sleeve automatically rotates along the central axis of the rotating sleeve under the action of the torsion spring, at the moment, the limiting plate rotates to one end of the installation protrusion far away from the elastic component along with the rotating sleeve, then the saw blade is loosened, the saw blade seat pushes the saw blade under the action of the elastic force of the elastic component until the installation protrusion arranged on the saw blade abuts against the limiting plate, and at the moment, the installation of the saw blade is completed, the installation and the locking of the saw blade can be completed only by inserting the saw blade into the saw blade groove, and the operation is simple and convenient; when the saw blade is disassembled, only the rotating sleeve is required to rotate, the installation protrusions are not propped against the limiting plates any more, the saw blade seat can automatically push out the saw blade under the pushing of the elastic component, the disassembly of the saw blade is completed, the saw blade is not required to be contacted, and the operators are prevented from being scalded by the high-temperature saw blade after being used.
2. The retainer ring and the spacing muscle clamp the outer cover that changes jointly in order to prevent to change the cover along axial displacement outward, be detachable connection between retainer ring and the draw-in groove, be provided with between outer cover and the lock sleeve and prevent outer cover for lock sleeve pivoted inserted sheet and slot, realize fixing between outer cover and the lock sleeve this moment, neither can take place relative movement nor can take place relative rotation, connect more firmly, drive lock sleeve that can be better when outer cover rotates under the drive of torsional spring rotates jointly rotates, the work is more stable.
3. When the locking sleeve rotates along with the outer rotating sleeve, the limiting pin can be changed from a state propped against one end of the limiting groove to a state propped against the other end of the limiting groove, and the mounting protrusion on the saw blade can be accurately aligned with the limiting plate or separated from the limiting plate through the cooperation of the limiting pin and the limiting groove, so that the saw blade can be conveniently mounted or dismounted.
4. The locking sleeve and the reciprocating rod are rotationally connected through the limiting protrusion and the annular groove, the limiting protrusion and the annular groove are matched to enable the rotating sleeve and the reciprocating rod to only rotate relatively, axial movement cannot occur, and connection stability is guaranteed.
Compared with the prior art, the invention can complete the installation and locking of the saw blade by only inserting the saw blade into the saw blade groove, and the operation is simple and convenient; when the saw blade is disassembled, only the rotating sleeve is required to rotate, the installation protrusions are not propped against the limiting plates any more, the saw blade seat can automatically push out the saw blade under the pushing of the elastic component, the disassembly of the saw blade is completed, the saw blade is not required to be contacted, and the operators are prevented from being scalded by the high-temperature saw blade after being used.
The invention also provides a reciprocating saw, which comprises an operating handle and the quick-change chuck, wherein the locking groove penetrates through the reciprocating rod, and the operating handle is spliced with one end, far away from the locking device, of the reciprocating rod through the locking groove.
Drawings
The invention is further described with reference to the drawings and detailed description which follow:
FIG. 1 is a perspective view of a quick change cartridge of the present invention;
FIG. 2 is an exploded view of a quick-change cartridge of the present invention;
FIG. 3 is a perspective view of the locking sleeve;
FIG. 4 is a top view of the locking sleeve;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6 is a schematic view of the assembly of the reciprocating lever and the locking sleeve;
FIG. 7 is a perspective view of an outer sleeve from one perspective;
FIG. 8 is a perspective view of another view of the outer sleeve;
FIG. 9 is a schematic cross-sectional view of a quick change chuck blade of the present invention prior to installation;
FIG. 10 is a second schematic cross-sectional view of the present invention prior to installation of a quick change chuck saw blade;
fig. 11 is an enlarged view of a portion a of fig. 9;
fig. 12 is an enlarged view of a portion B of fig. 10;
FIG. 13 is a schematic cross-sectional view of a quick change chuck saw blade according to the present invention after installation;
FIG. 14 is a second cross-sectional view of the present invention after installation of a quick change chuck saw blade;
fig. 15 is an enlarged view of a portion C of fig. 13;
fig. 16 is an enlarged view of a portion D of fig. 14.
Wherein: 1. a saw blade; 11. cutting the end; 12. a clamping end; 13. mounting the bulge; 2. a reciprocating lever; 21. a limiting pin; 22. a ring groove; 23. a guide hole; 24. a guide protrusion; 31. a locking mechanism; 32. a saw blade seat; 321. a saw blade slot; 322. a guide groove; 33. an elastic component; 331. a spring; 332. a push rod; 4. a rotating sleeve; 41. a locking sleeve; 411. a limit rib; 412. a retainer ring; 413. a slot; 414. a limit groove; 415. a limit protrusion; 42. an outer swivel; 421. a limit boss; 422. inserting sheets; 423. the protrusion is stirred; 5. a torsion spring; 51. a first torsion spring groove; 52. a second torsion spring groove; 6. a limiting plate; 61. a guide slope; 71. a positioning groove; 72. a through hole; 73. an avoidance groove; 74. a positioning piece; 8. an operation handle; 9. locking groove.
Detailed Description
An embodiment of a quick change chuck and reciprocating saw according to the present invention is further described with reference to fig. 1-16.
Embodiment one:
the utility model provides a quick change chuck, includes saw bit 1, reciprocating bar 2 and connects the locking device of saw bit 1 and reciprocating bar 2, and saw bit 1 includes cutting end 11, holding end 12 and the installation arch 13 that links to each other with holding end 12, and reciprocating bar 2 is provided with locking groove 9 towards the one end of saw bit 1, and locking device includes:
the locking mechanism 31 comprises a rotating sleeve 4 sleeved at the end part of the reciprocating rod 2, a torsion spring 5 connected with the rotating sleeve 4 and the reciprocating rod 2, and a limiting plate 6 arranged on the rotating sleeve 4 to prevent the mounting protrusion 13 from separating from the rotating sleeve 4, wherein the rotating sleeve 4 is in rotating connection with the reciprocating rod 2.
A blade seat 32 slidably coupled to the locking slot 9 and including a blade slot 321 for mounting the clamping end 12;
the elastic component 33 is positioned in the locking groove 9, and pushes the saw blade 1 away from the reciprocating rod 2 by pushing the saw blade seat 32 or presses the mounting protrusion 13 on the limiting plate 6 by pushing the saw blade seat 32;
a positioning component for positioning the rotating sleeve 4 is arranged on the reciprocating rod 2 and between the locking devices.
When the saw blade 1 needs to be installed, the saw blade 1 is held to be inserted into the saw blade groove 321, the saw blade 1 pushes the saw blade seat 32 to move towards the elastic component 33 through the saw blade groove 321, the elastic component 33 is compressed, meanwhile, along with the movement of the saw blade seat 32, the positioning component does not limit the locking device and the reciprocating rod 2, so that the rotating sleeve 4 automatically rotates along the central axis of the rotating sleeve 4 under the action of the torsion spring 5, at the moment, the limiting plate 6 rotates to one end of the installation protrusion 13 far away from the elastic component 33 along with the rotating sleeve 4, then the saw blade 1 is loosened, the saw blade seat 32 pushes the saw blade 1 under the action of the elastic force of the elastic component 33 until the installation protrusion 13 arranged on the saw blade 1 abuts against the limiting plate 6, and at the moment, the installation and locking of the saw blade 1 can be completed only by inserting the saw blade 1 into the saw blade groove 321, and the operation is simple and convenient; when the saw blade 1 is dismounted, only the rotating sleeve 4 is required to be rotated, the mounting protrusion 13 is not propped against the limiting plate 6 any more, the saw blade seat 32 can automatically push out the saw blade 1 under the pushing of the elastic component 33, the dismounting of the saw blade 1 is completed, the saw blade 1 is not required to be contacted, and the operator is prevented from being scalded by the high-temperature saw blade 1 after being used.
In the embodiment, the rotating sleeve 4 comprises a locking sleeve 41 sleeved with the reciprocating rod 2 and an outer rotating sleeve 42 sleeved on the outer side of the locking sleeve 41, the locking sleeve 41 and the outer rotating sleeve 42 are detachably linked, the installation between the rotating sleeve 4 and the reciprocating rod 2 is more convenient through the detachable link, the installation, the disassembly and the maintenance are convenient, the assembly efficiency is improved, as shown in fig. 11 and 12, a limiting boss 421 is arranged in the outer rotating sleeve 42, a limiting rib 411 propped against the top surface of the limiting boss 421 is arranged at the upper end of the locking sleeve 41, a clamping groove surrounding the outer wall of the locking sleeve 41 is arranged at the lower end of the locking sleeve 41, a retainer ring 412 propped against the end part of the outer rotating sleeve 42 is clamped in the clamping groove, the retainer ring 412 and the limiting rib 411 jointly clamp the outer rotating sleeve 42 to prevent the outer rotating sleeve 42 from moving along the axial direction, the retainer ring 412 is detachably connected with the clamping groove, an inserting piece 422 and an inserting groove 413 for preventing the outer rotating sleeve 42 from rotating relative to the locking sleeve 41 are arranged between the outer rotating sleeve 42 and the locking sleeve 41, the inserting groove 413 is arranged on the locking sleeve 41, the inserting piece 422 is arranged on the outer rotating sleeve 42, the inserting direction is parallel to the axial direction of the outer rotating sleeve 42, at the moment, fixation is achieved between the outer rotating sleeve 42 and the locking sleeve 41, relative movement and relative rotation cannot occur, connection is firmer, and when the outer rotating sleeve 42 is driven by the torsion spring 5 to rotate, the locking sleeve 41 can be driven to rotate together better, so that the work is more stable.
An accommodating groove for accommodating the torsion spring 5 is formed between the upper end of the locking sleeve 41 and the upper part of the outer rotating sleeve 42, a poking protrusion 423 is arranged on the outer rotating sleeve 42, a first torsion spring groove 51 is arranged on the poking protrusion 423, a second torsion spring groove 52 is arranged on the reciprocating rod 2, the first torsion spring groove 51 is communicated with the accommodating groove, the torsion spring 5 is sleeved on the outer side of the reciprocating rod 2 and is located in the accommodating groove, one end of each of two ends of the torsion spring 5 stretches into the corresponding first torsion spring groove 51, the other end of each of the torsion spring 5 stretches into the corresponding second torsion spring groove 52, the end of the torsion spring 5 is fixed, and the torsion spring 5 is prevented from moving axially on the reciprocating rod 2.
In this embodiment, the locking sleeve 41 is provided with a limit groove 414 for limiting the rotation angle of the locking sleeve 41 to ninety degrees, the reciprocating rod 2 is provided with a limit pin 21 matched with the limit groove 414, when the locking sleeve 41 rotates with the outer rotating sleeve 42, the limit pin 21 changes from a state of propping against one end of the limit groove 414 to a state of propping against the other end of the limit groove 414, and the mounting protrusion 13 on the saw blade 1 can be accurately aligned with the limit plate 6 or separated from the limit plate 6 through the cooperation of the limit pin 21 and the limit groove 414, so that the saw blade 1 is convenient to mount or dismount.
In this embodiment, the locking sleeve 41 is provided with a limiting protrusion 415, the reciprocating rod 2 is provided with a ring groove 22 matched with the limiting protrusion 415, the locking sleeve 41 and the reciprocating rod 2 are rotationally connected through the limiting protrusion 415 and the ring groove 22, and the limiting protrusion 415 and the ring groove 22 are matched to enable only relative rotation between the rotating sleeve 4 and the reciprocating rod 2, movement in the axial direction cannot occur, and stability of connection is guaranteed.
In this embodiment, the positioning assembly includes a positioning groove 71 located on the locking sleeve 41, a through hole 72 located on the reciprocating rod 2, and a avoiding groove 73 located on the saw blade seat 32, a positioning piece 74 extending into the avoiding groove 73 or the positioning groove 71 is slidably connected in the through hole 72, the positioning piece 74 is preferably a steel ball, a guiding hole 23 is provided on the reciprocating rod 2, a guiding protrusion 24 is penetrated in the guiding hole 23, a guiding groove 322 matching with the guiding protrusion 24 to prevent the saw blade seat 32 from separating from the reciprocating rod 2 is provided on the saw blade seat 32, and a guiding inclined plane 61 connected with the limiting plate 6 is provided in the rotating sleeve 4.
The spring assembly 33 includes a spring 331 and a ram 332, the spring 331 being located between the ram 332 and the blade mount 32.
Before the saw blade 1 is mounted on the reciprocating bar 2, as shown in fig. 11 and 12, in the state of the locking device, the positioning groove 71 and the through hole 72 are aligned, one end of the steel ball in the through hole 72 abuts against the outer wall of the reciprocating bar 2, the other end of the steel ball stretches into the positioning groove 71 to position the locking sleeve 41 and the reciprocating bar 2, the locking sleeve 41 is prevented from rotating relative to the reciprocating bar 2, the guide protrusion 24 abuts against the top of the guide groove 322, and at the moment, the mounting protrusion 13 is located at one end of the guide inclined plane 61 away from the limiting plate 6.
When the saw blade 1 is installed, when the saw blade 1 is pushed towards the push rod 332, the saw blade 1 pushes the saw blade seat 32 through the saw blade groove 321, the saw blade seat 32 and the push rod 332 jointly squeeze the spring 331, the guide bulge 24 moves along the axial direction of the reciprocating rod 2 in the guide groove 322, when the guide bulge 24 is propped against the lower part of the guide groove 322, the avoidance groove 73 on the saw blade seat 32 is just aligned with the through hole 72, the side wall of the saw blade seat 32 is not propped against the steel ball any more, at the moment, the outer rotating sleeve 42 is required to rotate under the action of the torsion spring 5, namely the locking sleeve 41 which is interlocked with the outer rotating sleeve 42 is required to rotate, the side wall of the locking sleeve 41 pushes the steel ball out of the positioning groove 71, the steel ball is located in the through hole 72 and stretches into the avoidance groove 73, at this time, no steel ball is limited between the locking sleeve 41 and the reciprocating rod 2, ninety degrees of rotation of the locking sleeve 41 and the outer rotating sleeve 42 occur under the action of the torsion spring 5, the installation protrusion 13 slides to one end provided with the limiting plate 6 along one end of the guide inclined plane 61, which is not provided with the limiting plate 6, the bottom of the installation protrusion 13 is located above the limiting plate 6, the saw blade 1 is loosened, and the saw blade seat 32 pushes the installation protrusion 13 on the saw blade 1 to move towards the limiting plate 6 under the action of the elastic force of the spring 331 until the bottom of the installation protrusion 13 abuts against the limiting plate 6 to lock the saw blade 1.
When the saw blade 1 is detached, only the reciprocating rod 2 is needed to be held by one hand, the shifting protrusion 423 is rotated by ninety degrees by one hand, the limiting plate 6 and the mounting protrusion 13 can be separated, the saw blade 1 is ejected from the reciprocating rod 2 under the pushing of the saw blade seat 32, and at the moment, the steel balls in the avoidance groove 73 are pushed into the positioning groove 71 by the blade seat again, so that the state before the saw blade 1 is mounted on the reciprocating rod 2 is maintained.
Embodiment two:
the invention also provides a reciprocating saw, which comprises an operating handle 8 and the quick-change chuck in the first embodiment, wherein a locking groove 9 penetrates through the reciprocating rod 2, the operating handle 8 is spliced with one end of the reciprocating rod 2, which is far away from a locking device, through the locking groove 9, and the ejector rod 332 is abutted against the operating handle 8, so that the spring 331 is convenient to replace.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (7)
1. The utility model provides a quick change chuck, includes saw bit, reciprocating lever and connects the locking device of saw bit and reciprocating lever, its characterized in that, the saw bit includes cutting end, clamping end and the installation arch that links to each other with the clamping end, the one end of reciprocating lever orientation saw bit is provided with the locking groove, locking device includes:
the locking mechanism comprises a rotating sleeve sleeved at the end part of the reciprocating rod, a torsion spring for connecting the rotating sleeve and the reciprocating rod and a limiting plate arranged on the rotating sleeve to prevent the mounting protrusion from separating from the rotating sleeve, and the rotating sleeve is rotationally connected with the reciprocating rod;
the saw blade seat is in sliding connection with the locking groove and comprises a saw blade groove for installing the clamping end;
the elastic component is positioned in the locking groove, and pushes the saw blade away from the reciprocating rod by pushing the saw blade seat or compresses the installation bulge on the limiting plate by pushing the saw blade seat;
a positioning assembly for positioning the rotating sleeve is arranged between the reciprocating rod and the locking device; the rotating sleeve comprises a locking sleeve sleeved with the reciprocating rod and an outer rotating sleeve sleeved on the outer side of the locking sleeve, a limiting boss is arranged in the outer rotating sleeve, a limiting rib propped against the limiting boss is arranged at one end of the locking sleeve, a check ring propped against the end part of the outer rotating sleeve is clamped at the other end of the locking sleeve, the check ring and the limiting rib jointly clamp the outer rotating sleeve to prevent the outer rotating sleeve from moving along the axial direction, and an inserting sheet and an inserting slot for preventing the outer rotating sleeve from rotating relative to the locking sleeve are arranged between the outer rotating sleeve and the locking sleeve;
the locking sleeve is provided with a limiting bulge, the reciprocating rod is provided with a ring groove matched with the limiting bulge, and the locking sleeve is rotationally connected with the reciprocating rod through the limiting bulge and the ring groove;
the outer rotating sleeve is provided with a poking bulge, and the poking bulge and the reciprocating rod are respectively provided with a first torsion spring groove and a second torsion spring groove for fixing two ends of the torsion spring.
2. A quick change cartridge as defined in claim 1, wherein: the positioning assembly comprises a positioning groove positioned on the rotating sleeve, a through hole arranged on the reciprocating rod and an avoidance groove arranged on the saw blade seat, and a positioning piece extending into the avoidance groove or the positioning groove is connected in a sliding manner in the through hole.
3. A quick change cartridge as defined in claim 2, wherein: the positioning piece is a steel ball.
4. A quick change cartridge according to claim 1 or 2 or 3, wherein: the locking sleeve is provided with a limiting groove for limiting the rotation angle of the locking sleeve, and the reciprocating rod is provided with a limiting pin matched with the limiting groove.
5. A quick change cartridge as defined in claim 1, wherein: the saw blade seat is provided with a guide groove which is matched with the guide bulge to prevent the saw blade seat from being separated from the reciprocating rod.
6. A quick change cartridge as defined in claim 1, wherein: and a guide inclined plane connected with the limiting plate is arranged in the rotating sleeve.
7. A reciprocating saw, characterized in that: the quick-change chuck comprises an operation handle and any one of claims 1 to 6, wherein the locking groove penetrates through the reciprocating rod, and the operation handle is spliced with one end, far away from the locking device, of the reciprocating rod through the locking groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262428.8A CN109332810B (en) | 2018-10-27 | 2018-10-27 | Quick-change chuck and reciprocating saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262428.8A CN109332810B (en) | 2018-10-27 | 2018-10-27 | Quick-change chuck and reciprocating saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109332810A CN109332810A (en) | 2019-02-15 |
| CN109332810B true CN109332810B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811262428.8A Active CN109332810B (en) | 2018-10-27 | 2018-10-27 | Quick-change chuck and reciprocating saw |
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| CN (1) | CN109332810B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370367B (en) * | 2019-07-29 | 2024-05-10 | 宁波汉浦工具有限公司 | Dual-purpose cutting tool |
| CN113275655B (en) * | 2021-06-29 | 2022-09-20 | 浙江皇冠电动工具制造有限公司 | Chuck component and jig saw |
| CN114346319B (en) * | 2022-01-13 | 2023-03-31 | 江苏和晖电动工具有限公司 | Reciprocating saw |
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| CN203853626U (en) * | 2014-04-24 | 2014-10-01 | 常州格力博有限公司 | Clamping device for scroll saw |
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| DE4102011A1 (en) * | 1990-05-31 | 1991-12-05 | Licentia Gmbh | Clamping blade of pad-saw - has torsion spring which presses blade against inclined face |
| US6047477A (en) * | 1995-03-16 | 2000-04-11 | Scintilla Ag | Compass saw |
| JP2002346827A (en) * | 2001-05-25 | 2002-12-04 | Ryobi Ltd | Device for clamping jigsaw blade |
| CN201102104Y (en) * | 2007-10-01 | 2008-08-20 | 苏州宝时得电动工具有限公司 | Saw blade clamping apparatus |
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| Publication number | Publication date |
|---|---|
| CN109332810A (en) | 2019-02-15 |
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Address after: No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Yate Electric Appliance Co.,Ltd. Address before: 314100 No. 150 Wenlong Road, Yuxin Town, Nanhu District, Jiaxing City, Zhejiang Province Applicant before: ZHEJIANG YAT ELECTRICAL APPLIANCE Co.,Ltd. |
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