CN114346319A

CN114346319A - Reciprocating saw

Info

Publication number: CN114346319A
Application number: CN202210038153.XA
Authority: CN
Inventors: 阳小飞; 徐聪; 李金霞
Original assignee: Jiangsu Hehui Power Tools Co ltd
Current assignee: Jiangsu Hehui Power Tools Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-04-15
Anticipated expiration: 2042-01-13
Also published as: CN114346319B

Abstract

The application relates to a reciprocating saw, which comprises a housin, the tip of casing is provided with the installation axle, the outer wall department cover of installation axle is equipped with the tighrening ring, the sliding tray has been seted up on the surface of casing, it is right to be provided with in the sliding tray the tighrening ring carries out the spacing subassembly of location, spacing subassembly includes locating part and setting element. This application has the effect that promotes the stability of saw blade at the during operation.

Description

Reciprocating saw

Technical Field

The present application relates to the field of reciprocating saws, and more particularly, to a reciprocating saw.

Background

Reciprocating saws are power tools that cut with a reciprocating saw blade.

When the installation, the groove that supplies the saw blade installation can be seted up in installation axle department to the saw blade of reciprocating saw, and the outer wall department of saw blade can be provided with a tighrening ring, and the tighrening ring screws up the back, can make the installation axial be close to the laminating of saw blade and support tightly to fix the saw blade, accomplish the installation to the saw blade.

However, the reciprocating saw may be used with the saw blade falling off as the reciprocating saw is constantly shaken due to constant contact with the object to be cut, thereby loosening the fastening ring.

Disclosure of Invention

To improve the stability of the saw blade when in use, the present application provides a reciprocating saw.

The application provides a reciprocating saw adopts following technical scheme:

the utility model provides a reciprocating saw, includes the casing, the tip of casing is provided with the installation axle, the outer wall department cover of installation axle is equipped with the tighrening ring, the sliding tray has been seted up on the surface of casing, it is right to be provided with in the sliding tray the tighrening ring carries out the spacing subassembly of fixing a position, spacing subassembly includes locating part and setting element.

By adopting the technical scheme, the limiting assembly limits the position of the fastening ring, so that the looseness of the fastening ring caused by vibration in the working process can be reduced; the locating part is fixed the tighrening ring, and the setting element is fixed the locating part, under the combined action of locating part and setting element, can promote the stability of tighrening ring by a wide margin.

Preferably, the locating part includes operation block, first spacing and the spacing of second, the one end of first spacing with the lateral wall of operation block is connected, the other end of first spacing with the one end of the spacing of second is connected, the operation block can be followed the length direction slip of sliding tray, the diapire department of sliding tray has seted up the confession first spacing groove of first spacing gliding, set up the confession in the casing the gliding second spacing groove of the spacing of second, the spacing of second wears to establish the second spacing groove, the lateral wall department of tighrening ring has seted up the confession the spacing of second inserts the fixed slot of establishing, the inner wall of fixed slot with the outer wall laminating of the spacing of second.

Through adopting above-mentioned technical scheme, slide the operation piece to the spacing strip of second insert and locate the fixed slot of tighrening ring, the spacing strip of second can fix the tighrening ring, and the tighrening ring is difficult to rotate to the reducible course of work makes the emergence of the not hard up phenomenon of tighrening ring because of the vibration, thereby has promoted the fixed action of tighrening ring.

Preferably, the positioning piece comprises a positioning block, a connecting rack, a connecting gear, a first driving bevel gear, a first driven bevel gear, a positioning rod, an insertion block and a connecting rod, the sliding groove is positioned at one end far away from the fastening ring and is provided with a abdicating groove, and the positioning block can slide along the length direction of the abdicating groove; the connecting rack is arranged on the side wall of the positioning block, the connecting gear is meshed with the connecting rack, and the positioning rod is inserted in the connecting rack; a first driving bevel gear is arranged at the end part of the positioning rod, the connecting rod is rotatably connected with the top wall of the sliding groove, the first driven bevel gear is sleeved on the connecting rod and meshed with the first driving bevel gear, the splicing block is sleeved on the connecting rod, and the splicing block is in threaded fit with the connecting rod; a limiting sleeve is arranged on the inner wall of the sliding groove, the connecting rod is inserted into the limiting sleeve, and the outer wall of the insertion block is matched with the inner wall of the limiting sleeve; the side wall of the positioning block is provided with a stabilizing block, the surface of the stabilizing block is provided with a stabilizing groove for the insertion block to be inserted, and the side wall of the stabilizing block is attached to the inner wall of the stabilizing groove.

Through adopting above-mentioned technical scheme, the locating piece slides the back, connecting rack drives connecting gear and rotates, thereby make the locating lever rotate, first initiative bevel gear drives first driven bevel gear and rotates, the plug-in block rotates along the length direction of connecting rod in the stop collar, and then make the plug-in block insert locate in the stable groove in the firm piece, thereby fix locating piece and operation piece, when the staff twists the tighrening ring, reducible emergence because the slip of operation piece makes the continuous phenomenon to the operating personnel that produces the interference of second stopper.

Preferably, a return spring is inserted into the abdicating groove, one end of the return spring is connected with the end wall of the abdicating groove, and the other end of the return spring is connected with one end of the positioning block far away from the operation block.

Through adopting above-mentioned technical scheme, after the staff changed the saw blade, screwed up the tighrening ring, remove the effort to the operation piece afterwards, reset spring diastole back, reset spring's elastic force slides locating piece and operation piece to the one end that is close to the tighrening ring to make the second stopper can insert automatically and locate in the fixed slot of tighrening ring, thereby promoted spacing subassembly's convenience in use.

Preferably, the bottom wall of the positioning block is provided with a connecting groove, an inserting block is inserted into the connecting groove, the inserting block can slide along the length direction of the connecting groove, the bottom wall of the abdicating groove is provided with a slot for the inserting block to be inserted, and the side wall of the inserting block is matched with the inner wall of the slot; and the shell is provided with an ejection piece for ejecting the insertion block from the slot.

Through adopting above-mentioned technical scheme, the locating piece slides to the spacing strip of second and withdraws from the fixed slot after, and the inserted block in the spread groove slides to the slot in, and the inner wall laminating of inserted block and slot, reset spring are difficult to stretch out and draw back and promote the locating piece to the staff can change the saw blade, need not always to promote backward the locating piece, convenience when further having promoted the change saw blade.

Preferably, the ejection member comprises an ejection lever; a through groove is formed in the side wall of the shell, the through groove is communicated with the slot, and the withdrawing rod can slide along the length direction of the through groove; a first guide surface is arranged on the side wall of the insertion block, and a second guide surface matched with the first guide surface is arranged at one end, close to the insertion block, of the withdrawing rod.

Through adopting above-mentioned technical scheme, promote and withdraw the pole, withdraw the pole and offset with the inserted block, and because first spigot surface and second spigot surface are mutually supported to can make the inserted block leave from the slot, and then can make the locating piece slide through reset spring's effort.

Preferably, the withdrawing member further comprises a pulling spring; the withdrawing rod comprises a first abutting rod and a second abutting rod, and the diameter of the second abutting rod is smaller than that of the first abutting rod; one end of the pulling spring is connected with one end, far away from the insertion block, of the first abutting rod, and the other end of the pulling spring is connected with the end wall, far away from the insertion groove, of the through groove.

Through adopting above-mentioned technical scheme, make the inserted block withdraw from the back in the slot when promoting second butt pole, because the tensile effect of pulling spring can make and withdraw from pole automatic re-setting to when the inserted block is inserted next and is located the slot, need not manually to withdraw from the pole and adjust.

Preferably, a connecting spring is arranged in the connecting groove, one end of the connecting spring is connected with the top wall of the connecting groove, and the other end of the connecting spring is connected with the inserting block.

By adopting the technical scheme, when the insertion block is inserted into the slot, the connection spring enables the insertion block to be abutted against the bottom wall of the slot, so that the stability of the insertion block when the insertion block is inserted into the slot is improved.

Preferably, a magnetic member is disposed at one end of the operating block close to the fastening ring, and an adsorbing member magnetically attracted to the magnetic member is disposed at a side wall of the sliding groove.

Through adopting above-mentioned technical scheme, when the second gag lever post was inserted and is located the fixed slot, the magnetic part of operation piece and the adsorption part of fixed slot end wall department pass through the magnetic force inter attraction laminating to promoted the stability of locating part when fixing a position the tighrening ring.

Preferably, one end of the operation block, which is close to the fastening ring, is provided with a guide arc surface, and the upper surface of the operation block is provided with an anti-slip strip.

Through adopting above-mentioned technical scheme, the direction cambered surface so that operating personnel promotes the operation piece, and the antislip strip has promoted the frictional resistance between operation piece surface and the operating personnel hand, has further promoted the stability of operating personnel when using the locating part.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the limiting component is arranged at the shell and used for positioning the fastening ring, and the limiting component can reduce the rotation phenomenon of the fastening ring, so that the loosening phenomenon of the fastening ring during working can be reduced; the positioning piece can fix the limiting piece when the limiting piece relieves the limiting on the fastening ring, so that the saw blade can be conveniently replaced;

2. after the positioning block slides, the insertion block can be inserted into the insertion slot, so that the positioning block is further positioned, and the stability of the positioning block can be improved;

3. one end of the operation block close to the fastening ring is provided with a magnetic part, and the end wall of the sliding groove is provided with an adsorption part magnetically attracted with the magnetic part, so that the stability of the limiting part in limiting the fastening ring can be improved.

Drawings

FIG. 1 is a general schematic view of a reciprocating saw according to an embodiment of the present application.

Fig. 2 is a schematic view for showing a connection relationship between the stopper and the fastening ring.

Fig. 3 is a partial schematic view of the cross-section taken along the line a-a in fig. 1.

Fig. 4 is a partial schematic view of the cross-section of fig. 1 taken along the line B-B.

Fig. 5 is an enlarged schematic view of a portion a of fig. 4.

Fig. 6 is a sectional partial schematic view for showing the connection relationship between the positioning block and the stabilizing block.

Fig. 7 is a partial schematic cross-section taken along section C-C of fig. 1.

Fig. 8 is a partial schematic view of the cross-section of fig. 1 taken along section D-D.

Description of reference numerals:

1. a housing; 11. a sliding groove; 12. a first limit groove; 13. a second limit groove; 14. a yielding groove; 141. a limiting sleeve; 15. a slot; 16. a through groove; 17. an adsorbing member; 2. installing a shaft; 3. a fastening ring; 31. fixing grooves; 4. a limiting component; 41. a limiting member; 411. an operation block; 4111. a magnetic member; 4112. a guiding cambered surface; 4113. anti-slip strips; 412. a first limit strip; 413. a second limit strip; 42. a positioning member; 421. positioning blocks; 4211. a return spring; 4212. connecting grooves; 4213. inserting a block; 42131. a first guide surface; 4214. a connecting spring; 422. connecting the racks; 423. a connecting gear; 424. a first drive bevel gear; 425. a first driven bevel gear; 426. positioning a rod; 4261. a fixed block; 427. an insertion block; 428. a connecting rod; 5. withdrawing the part; 51. withdrawing the rod; 511. a first abutting rod; 5111. the second guide face 5111; 512. a second butting rod; 52. pulling the spring; 6. a stabilizing block; 61. and (6) stabilizing the groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-8.

The embodiment of the application discloses a reciprocating saw. Referring to fig. 1, a reciprocating saw includes casing 1, and the tip of casing 1 is provided with installation axle 2, and the saw blade is inserted and is established installation axle 2 department, and the outer wall department cover of installation axle 2 is equipped with tighrening ring 3, and threaded connection between tighrening ring 3 and the installation axle 2.

Referring to fig. 1, a sliding groove 11 is formed in the upper surface of a housing 1, the sliding groove 11 is formed along the length direction of the housing 1, and a limiting component 4 for positioning a fastening ring 3 is installed in the sliding groove 11.

Referring to fig. 1, 2 and 3, the limiting component 4 includes a limiting member 41, the limiting member 41 includes an operation block 411, two first limiting strips 412 and two second limiting strips 413, in this embodiment, the operation block 411 is a rectangular block, the two first limiting strips 412 and the two second limiting strips 413 are both provided, the two first limiting strips 412 are located on two sides of the operation block 411 in the length direction, one end of each first limiting strip 412 is fixedly connected to a side wall of the operation block 411 through a pin, the first limiting strip 412 is located at one end of the operation block 411 close to the fastening ring 3, and the other end of each first limiting strip 412 is fixedly connected to the second limiting strip 413 through a pin; the operation block 411 can move along the length direction of the sliding groove 11, a first limiting groove 12 for the first limiting strip 412 to slide is formed in the bottom wall of the sliding groove 11, a second limiting groove 13 for the second limiting strip 413 to slide is formed in the shell 1, the second limiting groove 13 is formed along the length direction of the sliding groove 11, the first limiting groove 12 is communicated with the second limiting groove 13, and the second limiting strip 413 can penetrate through the second limiting groove 13 after the operation block 411 slides; the lateral wall department of tighrening ring 3 has run through along the length direction of sliding tray 11 and has seted up fixed slot 31, and the spacing 413 of second can insert and locate in fixed slot 31, and the inner wall of fixed slot 31 and the outer wall laminating of the spacing 413 of second to reducible tighrening ring 3 is because the emergence of the not hard up phenomenon of vibration in the reciprocating saw course of operation, thereby has promoted the stability of saw blade during operation.

Referring to fig. 1, 4 and 5, the position-limiting member 41 further includes a positioning member 42, and the positioning member 42 includes a positioning block 421, a connecting rack 422, a connecting gear 423, a first driving bevel gear 424, a first driven bevel gear 425, a positioning rod 426, an inserting block 427 and a connecting rod 28; an abdicating groove 14 is formed in one end, away from the fastening ring 3, of the sliding groove 11, a positioning block 421 is inserted into the abdicating groove 14, the positioning block 421 can slide along the length direction of the abdicating groove 14, and the end, close to the fastening ring 3, of the positioning block 421 is welded and fixed with the operating block 411; the connecting rack 422 is fixedly welded on the upper surface of the positioning block 421, the connecting gear 423 is meshed with the connecting rack 422, the positioning rod 426 is arranged along the width direction of the positioning block 421, the positioning rod 426 penetrates through the axis of the connecting gear 423, the positioning rod 426 and the connecting gear 423 are fixedly welded, a fixing block 4261 is sleeved on the outer wall of the positioning rod 426 in a sleeved mode, one end of the fixing block 4261 is fixedly welded with the top wall of the abdicating groove 14, and the positioning rod 426 can rotate in the fixing block 4261; in the embodiment of the present application, two first driving bevel gears 424, two first driven bevel gears 425, two plug blocks 427 and two connecting rods 28 are provided; first drive bevel gears 424 are fixed to both ends of the connecting rod 28, each of the first drive bevel gears 424 engaging one of the first driven bevel gears 425; the connecting rod 28 is perpendicular to the positioning rod 426, the upper end of the connecting rod 28 is connected with a top wall bearing of the abdicating groove 14, the connecting rod 28 penetrates through the axis of the first driven bevel gear 425, and the connecting rod 28 and the first driven bevel gear 425 are welded and fixed;

referring to fig. 5 and 6, the plug block 427 is sleeved on the connecting rod 28, and the plug block 427 is in threaded fit with the connecting rod 28, in the embodiment of the present application, the plug block 427 is a rectangular block, a limiting sleeve 141 is fixed on an inner wall of the abdicating groove 14, a side wall of the limiting sleeve 141 is welded and fixed with a side wall of the abdicating groove 14, the connecting rod 28 and the plug block 427 are both inserted into the limiting sleeve 141, and an inner wall of the limiting sleeve 141 and a side wall of the plug block 427 are attached to each other; the fixing blocks 6 are welded and fixed on the side walls of the two sides of the positioning block 421 in the length direction, the fixing grooves 61 are formed in the upper surface of the fixing blocks 6 in a penetrating mode along the thickness direction of the fixing blocks, the inserting blocks 427 can be inserted into the fixing grooves 61, and the length of the fixing grooves 61 is larger than that of the inserting blocks 427.

Referring to fig. 7 and 8, a connecting groove 4212 is formed in the bottom wall of the positioning block 421, the connecting groove 4212 is formed along the height direction of the positioning block 421, an insertion block 4213 is inserted into the connecting groove 4212, and the insertion block 4213 can slide along the length direction of the connecting groove 4212; a slot 15 for inserting the positioning block 421 is formed in the bottom wall of the receding groove 14; when the positioning block 421 slides, so that the insertion block 427 is inserted into the stable groove of the stable block, the insertion block 4213 is inserted into the insertion groove 15, the insertion block 4213 abuts against the inner wall of the insertion groove 15, when the saw blade is replaced by a worker, the positioning block 421 is fixed, the worker does not need to push the operation block 411 all the time, and the convenience in replacing the saw blade is improved.

Referring to fig. 7 and 8, a connection spring 4214 is disposed in the connection groove 4212, one end of the connection spring 4214 is welded and fixed to the top wall of the connection groove 4212, the other end of the connection spring 4214 is welded and fixed to the upper surface of the insert block 4213, and after the positioning block 421 slides to the connection groove 4212 and aligns to the insert groove 15, the connection spring 4214 expands, so that the lower end of the insert block 4213 abuts against the bottom wall of the insert groove 15, and the stability of the insert block 4213 in the insert groove 15 is effectively improved.

Referring to fig. 7 and 8, the housing 1 is provided with an ejector 5 for sliding the insert 4213 out of the slot 15; the ejecting member 5 includes an ejecting lever 51 and a pulling spring 52; the withdrawing rod 51 comprises a first abutting rod 511 and a second abutting rod 512, a through groove 16 is formed in the side wall of one side of the shell 1, the through groove 16 is communicated with the slot 15, the first abutting rod 511 is inserted into the through groove 16, the first abutting rod 511 can slide along the length direction of the through groove 16, a second guide surface 5111 is formed in one end, close to the slot 15, of the first abutting rod 511, and a first guide surface 42131 matched with the second guide surface 5111 in a fit mode is formed in the side wall of the insert block 4213; one end of the first abutting rod 511, which is far away from the slot 15, is welded and fixed with the second abutting rod 512, and the diameter of the second abutting rod 512 is smaller than that of the first abutting rod 511; the second butting rod 512 extends out of the through groove 16; in the embodiment of the application, two pulling springs 52 are arranged, one end of each pulling spring 52 is welded and fixed with one end, away from the slot 15, of the first abutting rod 511, and the other end of each pulling spring 52 is welded and fixed with the end wall, away from the slot 15, of the through slot 16; when the second abutting rod 512 is pressed to enable the first abutting rod 511 to push the insert block 4213 out of the slot 15, the first abutting rod 511 is reset by the elastic force of the pulling spring 52, so that the withdrawing rod 51 does not need to be manually pulled when the insert block 4213 is inserted into the slot 15 next time, and convenience when the insert block 4213 is inserted into the slot 15 is improved.

Referring to fig. 1 and 8, a return spring 4211 is fixedly welded to one end of the positioning block 421 away from the operating block 411, the return spring 4211 is arranged along the length direction of the abdicating groove 14, and one end of the return spring 4211 away from the positioning block 421 is fixedly welded to the end wall of the abdicating groove 14; after the worker screws the fastening ring 3, the sliding force on the operation block 411 is removed, the return spring 4211 is relaxed, so that the positioning block 421 drives the operation block 411 to move towards one end close to the fastening ring 3, and the inserting block 427 exits from the stabilizing groove 61, so that the second limiting strip 413 is automatically inserted into the fixing groove 31 of the fastening ring 3.

Referring to fig. 1 and 8, the one end that the operation piece 411 is close to the tighrening ring 3 is fixed through glue and is inlayed and be equipped with magnetic member 4111, the end wall of sliding tray 11 is fixed through glue and is inlayed and be equipped with the adsorption piece 17 of attracting mutually with magnetic member 4111 magnetism, in this application embodiment, magnetic member 4111 is magnet, adsorption piece 17 is the iron sheet, magnetic member 4111 and the magnetic force of adsorption piece 17, make operation piece 411 and sliding tray 11 be close to the fixed effect reinforcing of one end of tighrening ring 3, thereby can make the stability of second spacing 413 in fixed slot 31 obtain promoting by a wide margin.

Referring to fig. 1 and 8, the direction cambered surface 4112 has been seted up to the one end top that the operation piece 411 is close to the tighrening ring 3, the setting of direction cambered surface 4112, can be convenient for operating personnel to the slip of operation piece 411, simultaneously, the upper surface department of operation piece 411 is fixed with antislip strip 4113 through glue paste, in the embodiment of this application, antislip strip 4113 is the rubber strip, antislip strip 4113's setting can promote the frictional resistance between operation piece 411 and the operating personnel hand, and then stability when having promoted operating personnel slip operation piece 411.

The implementation principle of this application embodiment reciprocating saw does:

when the operator changes the saw blade, firstly, the operator slides the operation block 411 along the length direction of the sliding groove 11, so that the second limit strips 413 are separated from the fixing grooves 31, meanwhile, the insertion block 427 is inserted into the fixing groove 61, and the insertion block 4213 is inserted into the insertion groove 15, so that the limit component 4 releases the limit of the fastening ring 3, and then the fastening ring 3 is rotated, and the saw blade is changed; after the saw blade is changed, tighten the tighrening ring 3, press second butt joint pole 512, second butt joint pole 512 promotes insert block 4213, make insert block 4213 break away from slot 15, reset spring 4211 relaxs the back, locating piece 421 slides along the length direction of groove 14 of stepping down, thereby make insert block 427 break away from firm groove 61, operation piece 411 supports in the one end that sliding tray 11 is close to the tighrening ring 3, second spacing groove 13 is inserted again and is located in the fixed slot 31 of tighrening ring 3, thereby spacing tighrening ring 3, in order to reduce the emergence of the not hard up phenomenon of tighrening ring 3.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a reciprocating saw, includes casing (1), the tip of casing (1) is provided with installation axle (2), the outer wall department cover of installation axle (2) is equipped with tighrening ring (3), its characterized in that: a sliding groove (11) is formed in the surface of the shell (1), a limiting component (4) used for positioning the fastening ring (3) is arranged in the sliding groove (11), and the limiting component (4) comprises a limiting part (41) and a positioning part (42).

2. A reciprocating saw as defined in claim 1, wherein: the limiting piece (41) comprises an operation block (411), a first limiting strip (412) and a second limiting strip (413), one end of the first limiting strip (412) is connected with the side wall of the operating block (411), the other end of the first limit strip (412) is connected with one end of the second limit strip (413), the operation block (411) can slide along the length direction of the sliding groove (11), a first limiting groove (12) for the first limiting strip (412) to slide is formed in the bottom wall of the sliding groove (11), a second limit groove (13) for the second limit strip (413) to slide is arranged in the shell (1), the second limiting strip (413) penetrates through the second limiting groove (13), a fixing groove (31) for the second limiting strip (413) to be inserted is formed in the side wall of the fastening ring (3), the inner wall of the fixing groove (31) is attached to the outer wall of the second limiting strip (413).

3. A reciprocating saw as defined in claim 2, wherein: the positioning piece (42) comprises a positioning piece (421), a connecting rack (422), a connecting gear (423), a first driving bevel gear (424), a first driven bevel gear (425), a positioning rod (426), an inserting block (427) and a connecting rod (428), one end, far away from the fastening ring (3), of the sliding groove (11) is provided with a yielding groove (14), and the positioning piece (421) can slide along the length direction of the yielding groove (14); the connecting rack (422) is arranged on the side wall of the positioning block (421), the connecting gear (423) is meshed with the connecting rack (422), and the positioning rod (426) is inserted into the connecting rack (422); a first driving bevel gear (424) is arranged at the end part of the positioning rod (426), the connecting rod (428) is rotatably connected with the top wall of the sliding groove (11), the first driven bevel gear (425) is sleeved on the connecting rod (428) and meshed with the first driving bevel gear (424), the inserting block (427) is sleeved on the connecting rod (428), and the inserting block (427) is in threaded fit with the connecting rod (428); a limiting sleeve (141) is arranged on the inner wall of the sliding groove (11), the connecting rod (428) is inserted into the limiting sleeve (141), and the outer wall of the insertion block (427) is matched with the inner wall of the limiting sleeve (141); the side wall of the positioning block (421) is provided with a stabilizing block (6), the surface of the stabilizing block (6) is provided with a stabilizing groove (61) for the insertion block (427) to be inserted, and the side wall of the stabilizing block (6) is attached to the inner wall of the stabilizing groove (61).

4. A reciprocating saw as defined in claim 3, wherein: a return spring (4211) is inserted into the abdicating groove (14), one end of the return spring (4211) is connected with the end wall of the abdicating groove (14), and the other end of the return spring (4211) is connected with one end, far away from the operation block (411), of the positioning block (421).

5. A reciprocating saw as defined in claim 3, wherein: a connecting groove (4212) is formed in the bottom wall of the positioning block (421), an inserting block (4213) is inserted into the connecting groove (4212), the inserting block (4213) can slide along the length direction of the connecting groove (4212), an inserting groove (15) for inserting the inserting block (4213) is formed in the bottom wall of the receding groove (14), and the side wall of the inserting block (4213) is matched with the inner wall of the inserting groove (15); the shell (1) is provided with an exit piece (5) for exiting the insert block (4213) from the slot (15).

6. The reciprocating saw as defined in claim 5, wherein: the ejection member (5) comprises an ejection lever (51); a through groove (16) is formed in the side wall of the shell (1), the through groove (16) is communicated with the slot (15), and the withdrawing rod (51) can slide along the length direction of the through groove (16); the side wall of the insert block (4213) is provided with a first guide surface (42131), and one end of the withdrawing rod (51) close to the insert block (4213) is provided with a second guide surface 5111(5111) matched with the first guide surface (42131).

7. The reciprocating saw as defined in claim 6, wherein: the ejector (5) further comprises a pulling spring (52); the withdrawing rod (51) comprises a first abutting rod (511) and a second abutting rod (512), and the diameter of the second abutting rod (512) is smaller than that of the first abutting rod (511); one end of the pulling spring (52) is connected with one end, far away from the insert block (4213), of the first abutting rod (511), and the other end of the pulling spring (52) is connected with the end wall, far away from the insert slot (15), of the through slot (16).

8. The reciprocating saw as defined in claim 5, wherein: a connecting spring (4214) is arranged in the connecting groove (4212), one end of the connecting spring (4214) is connected with the top wall of the connecting groove (4212), and the other end of the connecting spring (4214) is connected with the insert block (4213).

9. A reciprocating saw as defined in claim 1, wherein: the operation piece (411) is close to one end of fastening ring (3) is provided with magnetic member (4111), the lateral wall department of sliding tray (11) be provided with magnetic member (4111) magnetism looks attraction piece (17).

10. A reciprocating saw as defined in claim 1, wherein: a guide arc surface (4112) is formed in one end, close to the fastening ring (3), of the operation block (411), and an anti-slip strip (4113) is arranged on the upper surface of the operation block (411).