CN215966663U

CN215966663U - Handsaw with double-handle installation position saw bow and detachable handle

Info

Publication number: CN215966663U
Application number: CN202122078198.3U
Authority: CN
Inventors: 乐崇年; 胡麟; 王明有
Original assignee: National-Level Key Vocational School
Current assignee: National-Level Key Vocational School
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-08
Anticipated expiration: 2031-08-31

Abstract

The utility model relates to a handsaw with a double-handle installation position saw bow and a detachable handle, which comprises a saw bow, a handle and a saw blade, wherein the handle and the saw blade are installed on the saw bow, the handle is provided with a positioning groove used for being inserted and matched on any bent part of the saw bow, the outer wall of the bent part is provided with at least one longitudinal skeleton and at least one transverse skeleton crossed with the longitudinal skeleton, the handle is provided with a longitudinal accommodating groove and a transverse accommodating groove which are communicated with the positioning groove and used for accommodating the longitudinal skeleton and the transverse skeleton, the outer wall of the bent part at two sides of the longitudinal skeleton is provided with a top block, the inner wall of the positioning groove is provided with a movable cavity opposite to the top block, the movable cavity is connected with a limiting mechanism in a sliding mode, and the limiting mechanism can be buckled with the top block when the handle is inserted and matched on the bent part. The saw bow of this technical scheme handsaw is for dismantling the connection between bow and the handle, and the assembly method between bow and handle is simple, all has handle installation position on the saw bow of saw blade both sides simultaneously.

Description

Handsaw with double-handle installation position saw bow and detachable handle

Technical Field

The utility model relates to a handsaw, in particular to a handsaw with a double-handle installation position saw bow and a detachable handle.

Background

The handsaw is a manual tool for cutting wood, stone, steel and the like, and generally comprises a saw bow, a saw blade and a handle, wherein the saw bow is used for fixing and tensioning the saw blade, all saw teeth on the saw blade are arranged in a certain shape according to a certain rule in a left-right opening mode, so that a saw path is formed, and the saw bow is also used for being connected with the handle to be held by an operator during cutting operation to control the moving direction of the saw blade.

When the saw blade is installed, the direction of the saw teeth of the saw blade should face the outer side of the body, namely the direction of the saw teeth is required to be consistent with the advancing direction, but the saw blade is easy to reversely install due to small saw teeth, so that the saw blade is difficult to push and pull back during cutting, and the problem that the saw teeth are quickly worn and even bent can be caused in the process.

The conventional handsaw has a saw blade mounted therein as shown in chinese patent publication No. CN210059989U entitled "a municipal handsaw", which describes a handsaw including a saw body and a handle fixed to one end of the saw body: still including sliding the installation department on the saw body, installation mechanism has two sets of both ends that set up at the installing frame respectively, install the saw bit on the installation department, the installation department includes installing frame and installation mechanism, installation mechanism includes erection column and installation nut, the erection column is worn to establish and is kept away from saw body one end at the vertical pole of installing frame, the erection column slides on the installing frame to being close to the handle or keeping away from the handle direction, two erection columns of two sets of installation mechanisms are close to one side mutually and have been seted up the mounting groove, the joint post has set firmly on the mounting groove, the saw bit cover is established on the joint post of both ends installation mechanism, installation nut threaded connection is in one side that the erection column is carried on the back.

When the saw blade is reversely arranged in the structure, the handle is only arranged on one side of the saw body, so that the normal cutting requirement can be met only by changing the direction of the saw blade, an operator rotates the mounting nut in the direction away from the saw blade during the changing, the pressure for oppositely extruding the two mounting grooves is reduced, the saw blade can be separated from the mounting groove, and then the saw blade is fixed in the mounting groove of the mounting column again in the above mode after changing the direction of the saw blade.

SUMMERY OF THE UTILITY MODEL

Aiming at the situations, in order to solve the problems that when the saw blade of the handsaw in the prior art is reversely arranged, the requirement of normal cutting operation needs to be met by the direction of replacing the saw blade, the replacing process of the saw blade is complicated, and time and labor are wasted, the utility model aims to provide the handsaw which is characterized in that the saw bow and the handle are detachably connected, the assembling mode between the saw bow and the handle is simple, and meanwhile, the saw bows on the two sides of the saw blade are provided with the handle mounting positions.

In order to achieve the purpose, the technical solution of the utility model is as follows:

the utility model provides a possess two handles installation position hacksaws and can dismantle handsaw of handle, it includes the hacksaw, and install handle and saw blade on the hacksaw, offer on the handle and be used for inserting the constant head tank of joining in marriage on arbitrary kink of hacksaw, be formed with at least a vertical skeleton on the outer wall of kink, and at least one and vertical skeleton cross horizontal skeleton, offer on the handle with the vertical storage tank and the horizontal storage tank of constant head tank intercommunication and being used for accomodating vertical skeleton and horizontal skeleton, be formed with the kicking block on the kink outer wall of vertical skeleton both sides, set up the activity chamber relative with the kicking block on the inner wall of constant head tank, activity intracavity sliding connection has stop gear, stop gear can insert when joining in marriage to the kink with the kicking block lock joint at the handle.

Preferably, the limiting mechanism comprises a positioning block and a return spring, the positioning block is slidably connected in the movable cavity, the return spring is arranged between a side wall of the movable cavity opposite to the ejector block and the positioning block, an end face of the positioning block opposite to the ejector block is an inclined face, and a slot for inserting the ejector block is formed in the end face.

Preferably, the inner wall of the movable cavity is provided with a sliding groove, and the outer wall of the positioning block is provided with a sliding block which is opposite to the sliding groove and is connected in the sliding groove in a sliding manner.

Preferably, the positioning block is provided with a push plate which is always exposed out of the movable cavity when the positioning block slides.

Preferably, the inner walls of the two bending portions are provided with guide blocks, a connecting frame is arranged between the two guide blocks, the connecting frame is provided with a connecting groove, the saw blade is inserted into the connecting groove, two side walls of the connecting groove are provided with at least one first screw hole which is opposite to the first screw hole, the saw blade is provided with a first through hole which is opposite to the first screw hole, and the first screw hole and the first through hole are internally connected with threaded fasteners.

Preferably, the inner walls of the two bending parts are provided with guide grooves arranged along the width direction of the two bending parts, the guide blocks are connected in the guide grooves in a sliding manner, a baffle plate is further arranged between the two bending parts, and one side of the baffle plate is provided with a containing groove opposite to the connecting frame.

Preferably, the outer wall of one side, deviating from the accommodating groove, of the baffle is provided with a pin shaft, the pin shaft is rotatably connected with a rotating plate, the rotating plate is provided with a second screw hole, two side walls of the connecting groove are provided with at least one third screw hole opposite to the third screw hole, the saw blade is provided with a second through hole opposite to the third screw hole, and the second screw hole, the third screw hole and the second through hole are internally connected with threaded fasteners.

Preferably, at least one set of first and second positioning magnets are provided on the opposite surfaces of the connecting frame and the receiving groove, respectively.

Preferably, the bending part includes an upper member and a lower member which are opposed to each other in an up-down direction and are connected by a hinge, the handle is inserted into the upper member, and the longitudinal frame, the lateral frame, and the top block are formed on the upper member.

Preferably, the upper part component all is equipped with the base on being located two outer walls of hinge both sides, has seted up at least one jack on the base, and the locating lever has been equipped with in the jack, and the one end that the locating lever deviates from the base extends to on the outer wall of lower part component, and the both ends of locating lever all are located the jack and are connected with the set nut outward.

Compared with the prior art, the utility model has the advantages that:

after the longitudinal skeleton and the transverse skeleton on the bent part of the saw bow are respectively inserted into the longitudinal containing groove and the transverse containing groove, the longitudinal skeleton can limit the left-right movement of the handle, the transverse skeleton can limit the front-back movement of the handle, and meanwhile, the longitudinal skeleton 101a and the transverse skeleton can limit the rotation of the handle, so that the handle is ensured to have good stability after being installed;

all be formed with the kicking block on the kink outer wall of vertical skeleton both sides, movable chamber has been seted up on the inner wall of constant head tank, and when the handle is inserted and is joined in marriage to the kink on, movable chamber can keep relative with the kicking block, activity intracavity sliding connection has stop gear, stop gear can insert when joining in marriage to the kink with the kicking block lock joint, thereby make the handle can be more firm be connected with the kink, and when dismantling the handle, only need promote stop gear and remove to activity chamber direction, make stop gear and kicking block break away from the lock joint state, again move up the handle can, based on the aforesaid setting, the whole dismouting process of handle is quick and convenient, compare in prior art, need not to dismantle the saw blade when the saw blade is turned over to adorn, the problem that wastes time and energy when having solved the change saw blade direction, the efficiency of assurance cutting operation is not influenced.

Drawings

FIG. 1 is a schematic view of the saw of the present invention from a first perspective;

FIG. 2 is a side view of the saw of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the portion B of FIG. 1 according to the present invention;

FIG. 5 is an enlarged view of the portion C of FIG. 2 according to the present invention;

FIG. 6 is a schematic view of the saw of the present invention from a second perspective;

FIG. 7 is a schematic view of the saw of the present invention from a third perspective;

FIG. 8 is an enlarged view of section D of FIG. 7 according to the present invention;

FIG. 9 is a schematic view of the overall construction of the handsaw blade of the present invention.

As shown in the figure:

1. sawing a bow; 101. a bending section; 101-1, an upper member; 101-2, a lower member; 101-3, a hinge; 101a, a longitudinal framework; 101b, a transverse framework; 101c, a top block; 101d, a guide groove; 2. a handle; 201. positioning a groove; 202. a longitudinal accommodating groove; 203. a transverse accommodating groove; 204. a movable cavity; 204a, a chute; 3. a saw blade; 301. a first through hole; 302. a second through hole; 4. positioning blocks; 401. a slot; 402. a slider; 5. a return spring; 6. pushing the plate; 7. a guide block; 8. a connecting frame; 801. a first screw hole; 802. a third screw hole; 9. a baffle plate; 901. a receiving groove; 10. a pin shaft; 11. rotating the plate; 1101. a second screw hole; 12. a first magnet; 13. a second magnet; 14. a base; 15. positioning a rod; 16. and (5) positioning a nut.

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships which are usually placed when the products of the present invention are used, and are used for the purpose of simplifying the description, but do not indicate or imply that the orientations are necessarily a specific orientation and a specific orientation configuration and operation, and thus, the present invention is not limited thereto.

As shown in fig. 1, 2, 5 to 7, a handsaw with a double-handle installation position bow and a detachable handle, similar to the prior handsaw, comprises a bow 1, the bow 1 has two bending parts 101 bent in opposite directions, a saw blade 3 installed between the two bending parts 101 of the bow 1, and a handle 2 installed on the outer edge of the bending part 101 of the bow 1, in particular, the handle 2 is provided with a positioning groove 201, and the handle 2 is inserted and matched on any bending part 101 of the bow 1 through the positioning groove 201;

wherein, at least one longitudinal skeleton 101a arranged along the length direction of the bending part 101 and at least one transverse skeleton 101b crossed with the longitudinal skeleton 101a are formed on the outer wall of the bending part 101, the transverse skeleton 101b can be connected with the longitudinal skeleton 101a and can also keep an interval, and the included angle between the transverse skeleton 101b and the longitudinal skeleton 101a can be any, only need not keep parallel, in this embodiment, the transverse skeleton 101b is connected with the longitudinal skeleton 101a and keeps vertical to the longitudinal skeleton 101a, correspondingly, the handle 2 is provided with a longitudinal containing groove 202 and a transverse containing groove 203 for containing the longitudinal skeleton 101a and the transverse skeleton 101b, and the longitudinal containing groove 202 and the transverse containing groove 203 are communicated with the positioning groove 201, when the handle 2 is inserted and matched on the bending part 101 through the positioning groove 201, the longitudinal containing groove 202 and the transverse containing groove 203 can respectively and synchronously reach the relative positions of the longitudinal skeleton 101a and the transverse skeleton 101b, therefore, the longitudinal framework 101a and the transverse framework 101b can be directly inserted into the corresponding longitudinal containing groove 202 and the corresponding transverse containing groove 203, based on the arrangement, after the longitudinal framework 101a and the transverse framework 101b are respectively inserted into the longitudinal containing groove 202 and the transverse containing groove 203, the longitudinal framework 101a can limit the left-right movement of the handle 2, the transverse framework 101b can limit the front-back movement of the handle 2, meanwhile, the longitudinal framework 101a and the transverse framework 101b can limit the rotation of the handle 2, and the handle 2 is guaranteed to have good stability after being installed;

wherein, the outer wall of the bending part 101 at both sides of the longitudinal frame 101a is formed with a top block 101c, the inner wall of the positioning slot 201 is provided with a movable cavity 204, and when the handle 2 is inserted and matched on the bending part 101, the movable cavity 204 can be opposite to the top block 101c, a limiting mechanism is slidably connected in the movable cavity 204, the limiting mechanism can be buckled with the top block 101c when the handle 2 is inserted and matched on the bending part 101, so that the handle 2 can be more stably connected with the bending part 101, and when the handle 2 is disassembled, only the limiting mechanism needs to be pushed to move towards the movable cavity 204 direction, so that the limiting mechanism and the top block 101c are separated from the buckled state, and then the handle 2 is moved upwards, based on the arrangement, the whole disassembling and assembling process of the handle 2 is fast and convenient, compared with the prior art, the saw blade 3 does not need to be disassembled when the saw blade 3 is reversely assembled, thereby solving the problems of time and labor waste in the direction of replacing the saw blade 3, the efficiency of cutting operation is not influenced.

As shown in fig. 1, 2, 5 to 7, specifically, the limiting mechanism includes a positioning block 4 and a return spring 5, the positioning block 4 is slidably connected in the movable cavity 204, when the movable cavity 204 is opposite to the top block 101c, the positioning block 4 and the top block 101c are simultaneously kept at opposite positions, the return spring 5 is arranged between a side wall of the movable cavity 204 opposite to the top block 101c and the positioning block 4 to support the positioning block, one end surface of the movable block, which is close to the top block 101c, is exposed outside the movable cavity 204 in an initial state, and when the movable block moves towards the inner direction of the movable cavity 204, one end surface of the positioning block 4, which is close to the top block 101c, is always exposed outside the movable cavity 204, one end surface of the positioning block 4, which is opposite to the top block 101c, is an inclined surface, which is inclined towards the top block 101c from bottom to top, when the handle 2 is inserted into the bending portion 101 of the saw bow 1, along with the movement of the handle 2 towards the bending part 101, the positioning block 4 gradually moves towards the direction of the relative position with the top block 101c, and when moving, the top block 101c gradually extrudes the positioning block 4 towards the direction of the movable cavity 204, a slot 401 for inserting the top block 101c is arranged on one end face of the positioning block 4 opposite to the top block 101c, the spring is gradually compressed when the top block 101c extrudes the positioning block 4, when the top block 101c reaches the relative position with the slot 401 on the positioning block 4, the spring returns to deform because the pressure acted on the outer surface of the positioning block 4 by the top block 101c disappears, and then the positioning block 4 is pushed to move towards the top block 101c, so that the positioning is inserted into the slot 401, the top block 101c and the slot 401 in the insertion state can limit the movement of the handle 2 in the up-and-down direction, thereby completing the installation of the whole handle 2, and based on the above arrangement, the handle 2 can keep excellent stability after being installed, when the problem of saw blade 3 anti-dress appears, only need the user to move about chamber 204 direction promotion locating piece 4 and expose in the outer part of activity chamber 204, break away from in the slot 401 on the piece 4 of messenger's kicking block 101c self-align, the dismantlement of handle 2 can be accomplished to moving handle 2 in the direction of keeping away from kink 101 again, and the accessible above-mentioned mode is quick installs handle 2 to another kink 101 of bow 1, so the whole dismouting process of handle 2 is quick and convenient, compare in prior art, need not to dismantle saw blade 3 when saw blade 3 anti-dress, the problem that wastes time and energy when having solved change saw blade 3 direction, the efficiency of guaranteeing the cutting operation is not influenced.

As shown in fig. 5, a sliding groove 204a is formed on the inner wall of the movable cavity 204, the sliding groove 204a does not penetrate through the movable cavity 204 near the top block 101c, a sliding block 402 which is opposite to the sliding groove 204a and is slidably connected to the corresponding sliding groove 204a is formed on the outer wall of the positioning block 4, and when the positioning block 4 slides in the movable cavity 204, the sliding block 402 slides synchronously along the sliding groove 204a, and based on the above arrangement, the positioning block 4 can be prevented from falling off from the movable cavity 204 by the matching structure of the sliding block 402 and the sliding groove 204 a.

As shown in fig. 5, the positioning block 4 is provided with a push plate 6 which is always exposed outside the movable cavity 204 when sliding, when an operator needs to detach the handle 2, the positioning block 4 can be driven to move by pushing the push plate 6 towards the inner direction of the movable cavity 204, and the positioning block 4 can be controlled to move better by the operator due to the arrangement of the push plate 6.

As shown in fig. 1, 6, 7 and 9, the inner walls of the two bent portions 101 are provided with guide blocks 7, a connecting frame 8 is provided between the two guide blocks 7, the connecting frame 8 is provided with a connecting groove, the saw blade 3 is inserted into the connecting groove, two side walls of the connecting groove are provided with at least one first screw hole 801 opposite to each other, the saw blade 3 is provided with a first through hole 301 opposite to the first screw hole 801, the first screw hole 801 and the first through hole 301 are connected with a threaded fastener, which can be a bolt or the like, based on the above arrangement, the installation of the saw blade 3 can be greatly facilitated, specifically, the first through hole 301 on the saw blade 3 is kept opposite to the first screw hole 801 on the side wall of the connecting frame 8, the saw blade 3 is inserted into the connecting groove, the threaded fastener is screwed into the first screw hole 801 and the first through hole 301, the fixing of the saw blade 3 can be completed, when the saw blade 3 is replaced, only by rotating the threaded fastener to disengage it from the connection with the first screw hole 801 and the first through hole 301, the saw blade 3 can be directly disengaged from the connection groove due to its own weight.

As shown in fig. 1, 6, 7 and 9, the inner walls of the two bending portions 101 are provided with guide grooves 101d arranged along the width direction thereof, the guide block 7 is slidably connected in the guide grooves 101d, a baffle plate 9 is further disposed between the two bending portions 101, one side of the baffle plate 9 is provided with a storage groove 901 opposite to the connecting frame 8, the connecting frame 8 and the saw blade 3 can be synchronously driven to move when the guide block 7 slides along the guide grooves 101d, the connecting frame 8 and the saw blade 3 gradually approach the baffle plate 9 in the process that the guide block 7 moves towards the baffle plate 9 until entering the storage groove 901 on the baffle plate 9 for storage, so that the saw blade 3 is protected by the peripheral wall of the storage groove 901, and the situation that the saw teeth on the saw blade 3 scratch nearby people can be avoided under the condition of not being used, based on the above arrangement, the handsaw of the technical scheme has good safety.

As shown in fig. 1, 6, 7 and 9, a pin shaft 10 is provided on an outer wall of a side of the baffle plate 9 away from the receiving groove 901, a rotating plate 11 is rotatably connected to the pin shaft 10, a second screw hole 1101 is provided on the rotating plate 11, at least one third screw hole 802 opposite to the third screw hole 802 is provided on two side walls of the connecting groove, a second through hole 302 opposite to the third screw hole 802 is provided on the saw blade 3, and after the rotating plate 11 is rotated to a butt joint position with the connecting frame 8, the second screw hole 1101 can be kept opposite to the third screw hole 802 and the second through hole 302, threaded fasteners are connected in the second screw hole 1101, the third screw hole 802 and the second through hole 302, and the threaded fasteners can be bolts and other components, when the handsaw of the present technical scheme is used, an operator can firstly rotate the rotating plate 11 towards the connecting frame 8 until the second screw hole 802 on the rotating plate 11 is kept opposite to the third screw hole 802 on the side wall of the connecting groove 1101 and the second through hole 302 on the saw blade 3, at this time, the screw fasteners can be screwed into the second screw holes 1101, the third screw holes 802 and the second through holes 302 in order to fix the rotating plate 11 to the connecting frame 8, and based on the above arrangement, the guide block 7 can be prevented from sliding along the guide groove 101d, so that the saw blade 3 is held at a fixed position, the saw blade 3 moves when performing a cutting operation, and when detaching, the rotating plate 11 can be rotated again only by rotating the screw fasteners to disengage from the second screw holes 1101, the third screw holes 802 and the second through holes 302.

As shown in fig. 1, 4, 6 and 7, at least one set of first magnet 12 and second magnet 13 are disposed on the opposing surfaces of the connecting frame 8 and the receiving groove 901, respectively, and when the guide block 7 drives the connecting frame 8 and the saw blade 3 to slide along the guide groove 101d into the receiving groove 901 of the baffle plate 9, the first magnet 12 can attract the second magnet 13 opposing thereto, so that the connecting frame 8 and the saw blade 3 can be prevented from falling down when being received based on the above arrangement.

As shown in fig. 1 and 6, the bending part 101 includes an upper member 101-1 and a lower member 101-2 which are opposite up and down and connected by a hinge 101-3, the handle 2 is inserted into the upper member 101-1, and the longitudinal frame 101a, the transverse frame 101b and the top block 101c are formed on the upper member 101-1, based on the above arrangement, the upper member 101-1 and the handle 2/the lower member 101-2 can be turned over and folded, thereby facilitating the storage and carrying of the handsaw in the technical scheme.

As shown in figure 8, the two outer walls of the upper component 101-1 at two sides of the hinge 101-3 are both provided with a base 14, the base 14 is provided with at least one jack, a positioning rod 15 is inserted in the jack, one end of the positioning rod 15 departing from the base 14 extends to the outer wall of the lower component 101-2, the two sides of the lower component 101-2 are blocked by the positioning rod 15 in the insertion state of the jack, so that the rotation of the lower component 101-2 in the cutting operation can be limited, the positioning rod 15 is connected with the jack in the insertion manner, so that the positioning rod 15 can be conveniently detached, the upper component 101-1 and the lower component 101-2 can rotate oppositely after the positioning rod 15 is detached, the folding is realized, two ends of the positioning rod 15 are both positioned outside the jack and connected with a positioning nut 16, the positioning rod 15 can be prevented from dislocation through the arrangement, when positioning rod 15 is to be removed, this can be accomplished by rotating positioning nut 16 away from positioning rod 15.

With reference to fig. 1 to 9, when the handsaw of the present invention is used, the handle 2 is inserted into the upper member 101-1 of the bending portion 101 of the bow 1 through the positioning groove 201, at this time, the longitudinal frame 101a and the transverse frame 101b on the upper member 101-1 are inserted into the longitudinal receiving groove 202 and the transverse receiving groove 203 of the handle 2, respectively, and the top block 101c pushes the positioning block 4 to move toward the movable cavity 204 and compress the spring, until reaching the abutting position with the slot 401, the positioning block 4 is driven by the elastic force of the spring returning deformation to move toward the top block 101c until the top block 101c is inserted into the slot 401, completing the fixing of the handle 2, then the first through hole 301 on the saw blade 3 is opposite to the first screw hole 801 on the slot, the saw blade 3 is inserted into the slot, the threaded fastener is screwed into the first screw hole 801 and the second through hole 302 in sequence, finishing the fixing of the saw blade 3, finally rotating the rotating plate 11 towards the connecting frame 8 to make the second screw hole 1101 on the rotating plate 11 opposite to the third screw hole 802 on the connecting frame 8 and the second through hole 302 on the saw blade 3, screwing the screw fastening piece into the second screw hole 1101, the third screw hole 802 and the second through hole 302 in sequence, thus fixing the rotating plate 11 with the connecting frame 8, at this moment, cutting operation can be carried out, when the saw blade 3 is reversely mounted, the operator only needs to stir the push plate 6 on the positioning block 4 to make the positioning block 4 move towards the inner direction of the movable cavity 204, and simultaneously moves the handle 2 towards the direction deviating from the upper component 101-1, thus separating the handle 2 from the upper component 101-1 of the bending part 101, and mounting the saw blade on the upper component 101-1 of the bending part 101 at the other side of the bow 1 in the same way, after use, the operator can finish the second screw hole 1101, The threaded fasteners in the third screw hole 802 and the second through hole 302 are taken out, the guide block 7 is slid towards the direction of the baffle plate 9 along the guide groove 101d until the connecting frame 8 and the saw blade 3 enter the accommodating groove 901 of the baffle plate 9 until the connecting frame 8 and the first magnet 12 and the second magnet 13 in the accommodating groove 901 are mutually attracted, when the connecting frame 8 and the saw blade are stored and carried, the positioning nut 16 on the positioning rod 15 can be taken down, then the positioning rod 15 is taken out from the jack of the base 14, and the upper component 101-1 and the lower component 101-2 of the bending part 101 can be rotated oppositely to realize folding.

The foregoing embodiments and description have been presented only to illustrate the principles and preferred embodiments of the utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as hereinafter claimed.

Claims

1. A hand saw with a double-handle installation position saw bow and a detachable handle comprises a saw bow (1), a handle (2) and a saw blade (3) which are installed on the saw bow (1), and is characterized in that the handle (2) is provided with a positioning groove (201) which is used for being inserted and matched with any bending part (101) of the saw bow (1), the outer wall of the bending part (101) is provided with at least one longitudinal framework (101a) and at least one transverse framework (101b) which is crossed with the longitudinal framework (101a), the handle (2) is provided with a longitudinal accommodating groove (202) and a transverse accommodating groove (203) which are communicated with the positioning groove (201) and are used for accommodating the longitudinal framework (101a) and the transverse framework (101b), and the outer wall of the bending part (101) at two sides of the longitudinal framework (101a) is provided with a top block (101c), the inner wall of the positioning groove (201) is provided with a movable cavity (204) opposite to the top block (101c), the movable cavity (204) is internally and slidably connected with a limiting mechanism, and the limiting mechanism can be buckled with the top block when the handle is inserted and matched to the bent part.

2. The handsaw with the double-handle mounting position hack and the detachable handle according to claim 1, wherein the limiting mechanism comprises a positioning block (4) and a return spring (5), the positioning block (4) is slidably connected in the movable cavity (204), the return spring (5) is arranged between a side wall of the movable cavity (204) opposite to the top block (101c) and the positioning block (4), an end surface of the positioning block (4) opposite to the top block (101c) is an inclined surface, and the end surface is provided with a slot (401) for the top block (101c) to be inserted.

3. The handsaw with the double-handle mounting-position bow and the detachable handle as claimed in claim 2, wherein the inner wall of the movable cavity (204) is provided with a sliding groove (204a), and the outer wall of the positioning block (4) is provided with a sliding block (402) which is opposite to the sliding groove (204a) and is slidably connected with the sliding groove (204 a).

4. The handsaw with a double-handle mounting bow and a detachable handle as claimed in claim 2, wherein the positioning block (4) is provided with a push plate (6) which is always exposed to the outside of the movable cavity (204) when the positioning block slides.

5. The handsaw with the double-handle mounting-position bow and the detachable handle as claimed in claim 1, wherein the inner walls of the two bending portions (101) are provided with guide blocks (7), a connecting frame (8) is arranged between the two guide blocks (7), the connecting frame (8) is provided with a connecting groove, the saw blade (3) is inserted into the connecting groove, two side walls of the connecting groove are provided with at least one first screw hole (801) which is opposite to the first screw hole (801), the saw blade (3) is provided with a first through hole (301) which is opposite to the first screw hole (801), and threaded fasteners are connected in the first screw hole (801) and the first through hole (301).

6. The handsaw with the double-handle mounting-position bow and the detachable handle as claimed in claim 5, wherein the inner wall of the two bending portions (101) is provided with a guide groove (101d) arranged along the width direction thereof, the guide block (7) is slidably connected in the guide groove (101d), a baffle (9) is further arranged between the two bending portions (101), and one side of the baffle (9) is provided with a storage groove (901) opposite to the connecting frame (8).

7. The handsaw with the double-handle mounting position bow and the detachable handle as claimed in claim 6, wherein a pin shaft (10) is provided on the outer wall of the side of the baffle plate (9) away from the accommodating groove (901), a rotating plate (11) is rotatably connected to the pin shaft (10), a second screw hole (1101) is provided on the rotating plate (11), at least one third screw hole (802) opposite to the connecting groove is provided on the two side walls of the connecting groove, a second through hole (302) opposite to the third screw hole (802) is provided on the saw blade (3), and threaded fasteners are connected to the second screw hole (1101), the third screw hole (802) and the second through hole (302).

8. The handsaw with a double-handle bow and a detachable handle as set forth in claim 6, wherein at least one set of first positioning magnet (12) and second positioning magnet (13) are provided on the opposing surfaces of the connecting frame (8) and the receiving groove (901), respectively.

9. The handsaw with a double-handle mounting position bow and a detachable handle according to claim 1, wherein the bending portion (101) comprises an upper member (101-1) and a lower member (101-2) which are opposed to each other and connected by a hinge (101-3), the handle (2) is inserted into the upper member (101-1), and the longitudinal frame (101a), the transverse frame (101b) and the top block (101c) are formed on the upper member (101-1).

10. The handsaw with the double-handle mounting-position bow and the detachable handle as claimed in claim 9, wherein the upper member (101-1) has a base (14) on both outer walls of both sides of the hinge (101-3), the base (14) has at least one insertion hole, a positioning rod (15) is inserted into the insertion hole, one end of the positioning rod (15) away from the base (14) extends to the outer wall of the lower member (101-2), and both ends of the positioning rod (15) are located outside the insertion hole and connected with a positioning nut (16).