CN209792757U

CN209792757U - hand-held type slitting saw

Info

Publication number: CN209792757U
Application number: CN201920160902.XU
Authority: CN
Inventors: 王喜友
Original assignee: Beijing Rena Xubang Technology Co Ltd
Current assignee: Beijing Rena Xubang Technology Co Ltd
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2019-12-17
Anticipated expiration: 2029-01-29

Abstract

The utility model relates to a hand-held type slitting saw, which comprises a handle, the one end rigid coupling of handle has first support and the second support that is parallel to each other, first support is connected with the drive shaft towards the direction rotation of second support, the first pressure disk of one end rigid coupling that the drive shaft tip is close to the second support, it is connected with the activity post with the drive shaft coaxial line to slide on the second support, the one end rotation that the activity post is close to the drive shaft is connected with the fore-set, fore-set tip rigid coupling has and moves the second pressure disk that can the butt in the saw bit opposite side with the fore-set coaxial line and along with the fore-set, the mounting hole has been seted up at the saw bit middle part, the axis position department rigid coupling of second pressure disk is equipped with the post of inserting that can wear to establish the mounting hole, it can insert the jack of post to open on the first pressure disk, be provided with the positioning mechanism that can accomplish activity. The utility model discloses have the quick dismantlement and the installation that can realize the saw bit, easy operation, convenient to use's effect.

Description

Hand-held type slitting saw

Technical Field

The utility model belongs to the technical field of the technique of cutting machine and specifically relates to a hand-held type slitting saw is related to.

Background

Hand-held type slitting saw also is called handheld cutting machine, can be used for cutting the machine of materials such as building stones, ceramic tile, timber and billet, and it chooses for use corresponding saw bit according to the cutting material of difference.

The prior Chinese utility model patent with the reference of the publication number CN203156147U discloses a handheld cutting machine, which relates to the technical field of special equipment for grinding tools. The shock-absorbing saw blade comprises a switch, a handle, a main body, an outer cover and a saw blade, and further comprises a shock-absorbing support handle, a movable cover and scale marks, wherein the handle is arranged at the rear end of the main body, the switch is arranged on the handle, the shock-absorbing support handle is arranged at the lower end of the joint of the main body and the handle, the saw blade is arranged at the front end of the main body, the outer cover is arranged on the outer side of the saw blade, the movable cover is respectively arranged at the upper end and the lower end of the. The novel dust guard is scientific and reasonable in design, the angle of the dust guard can be adjusted during cutting, and the adjustable part of the dust guard is wider, so that more dust can be blocked. The cutting depth can be conveniently controlled by the scales on the saw blade of the cutting machine, an operator can operate by both hands, and the labor intensity is reduced

However, the cutting machine still has the following defects when in use: when the saw blade needs to be replaced, the protective cover and the blade are detached together through the plurality of detaching tools, then the saw blade is replaced, and finally the saw blade and the protective cover are installed on the handle together, so that the operation is complex and the use is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hand-held type slitting saw has quick dismantlement and the installation that can realize the saw bit, easy operation, convenient to use.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

A hand-held cutting saw comprises a handle, wherein one end of the handle is fixedly connected with a first support and a second support which are parallel to each other, the first support rotates towards the direction of the second support and is connected with a driving shaft, one end of the end part of the driving shaft, which is close to the second support, is fixedly connected with a first pressure plate which is coaxial with the driving shaft, the second support slides towards the direction of the first support and is connected with a movable column which is coaxial with the driving shaft, one end of the movable column, which is close to the driving shaft, is rotatably connected with a top column, the end part of the top column is fixedly connected with a second pressure plate which is coaxial with the top column and can be abutted against the other side of a saw blade along with the movement of the top column, the middle part of the saw blade is provided with a mounting hole, an inserting column which can penetrate through the mounting hole is fixedly connected at the axial position of the second pressure plate, the first pressure plate is provided with, and a driving mechanism capable of driving the driving shaft to rotate is further arranged in the handle.

Through adopting above-mentioned technical scheme, in operation, actuating mechanism can drive the drive shaft and rotate, thereby can drive the saw bit rotation between drive shaft and the loose axle, thereby drive the saw bit and rotate and accomplish the cutting, when needs change the saw bit, the movable post that slides, drive the movable post and tend to keep away from the one side motion of first support, thereby drive fore-set and second pressure disk and tend to keep away from the direction motion of first pressure disk, insert the jack that the post breaks away from first pressure disk until the second pressure disk, can be with the convenient dismantlement between first pressure disk and the second pressure disk of saw bit, then locate on inserting the post with new saw bit cover, the movable post that slides is inserted and is located in the jack until inserting the post, and make the both sides of the tight saw bit of first pressure disk and second pressure disk top, then accomplish the installation that the movable post can accomplish the saw bit at the location of second support through positioning mechanism, high durability and convenient.

The utility model discloses further set up to: the positioning mechanism comprises a positioning stud which is in threaded connection with the second support and the axis direction of the positioning stud is perpendicular to the axis direction of the sliding column, and the end part of the positioning stud can abut against the peripheral surface of the movable column along with rotation.

through adopting above-mentioned technical scheme, press from both sides the saw bit and press from both sides tightly in first pressure disk and second pressure disk after, can rotate the fore-set double-screw bolt, make the tip butt of location double-screw bolt in the global of activity post to can accomplish the location of activity post on the second support, and then can realize the fixed of second pressure disk and first pressure disk relative position, thereby realize the installation of saw bit.

The utility model discloses further set up to: the peripheral surface of the movable column is provided with a positioning hole which can insert a positioning stud when the second pressure plate and the first pressure plate compress the saw blade.

Through adopting above-mentioned technical scheme, press from both sides the saw bit and press from both sides tightly in first pressure disk and second pressure disk after, can rotate the positioning stud, make the tip of positioning stud insert and locate in the locating hole to can be further avoid the activity post to slide in the support, and then guarantee the firm fixed of saw bit.

The utility model discloses further set up to: the saw blade is provided with a plurality of limiting holes by taking the mounting hole as the center, the positions of the second pressure plate corresponding to the limiting holes are fixedly connected with limiting posts capable of penetrating through the limiting holes, and one side of the second pressure plate close to the first pressure plate is provided with a limiting groove capable of inserting the limiting posts.

Through adopting above-mentioned technical scheme, wear to establish the spacing hole of saw bit and insert and locate the spacing groove on the first pressure disk through many spacing posts on the second pressure disk, the position of spacing saw bit between first pressure disk and second pressure disk that can step forward guarantees that the saw bit can rotate along with the rotation of first pressure disk, convenient to use.

The utility model discloses further set up to: and one end of the movable column far away from the top column is fixedly connected with a baffle ring.

Through adopting above-mentioned technical scheme, can carry out spacing and pull, convenient to use to the activity post through the fender ring that adopts.

The utility model discloses further set up to: the equal rigid coupling in one side that first pressure disk and second pressure disk are close to each other has the blotter.

Through adopting above-mentioned technical scheme, on the one hand, can prevent through the blotter that first pressure disk and second pressure disk from crushing the saw bit, on the other hand also can make the fixed more stable firm of saw bit between first pressure disk and second pressure disk.

The utility model discloses further set up to: and a protective cover which can cover one side of the saw blade close to the handle is fixedly connected between the first bracket and the second bracket.

Through adopting above-mentioned technical scheme, through the protection casing that adopts, can protect the one side that the saw bit is close to the handle on the one hand, accidentally injure operating personnel when preventing the saw bit rotation, on the other hand also can block the piece that splashes when cutting.

To sum up, the utility model discloses a beneficial technological effect does:

1. When the saw blade replacing device works, the driving mechanism can drive the driving shaft to rotate, so that the saw blade between the driving shaft and the movable shaft can be driven to rotate, the saw blade is driven to rotate to complete cutting, when the saw blade needs to be replaced, the movable column is rotated to drive the movable column to tend to move away from one side of the first support, so that the top column and the second pressure plate are driven to tend to move away from the direction of the first pressure plate until the insertion column of the second pressure plate is separated from the insertion hole of the first pressure plate, the saw blade can be conveniently detached from the space between the first pressure plate and the second pressure plate, then a new saw blade is sleeved on the insertion column, the movable column is rotated until the insertion column is inserted into the insertion hole, and the first pressure plate and the second pressure plate tightly push the two sides of the;

2. After the saw blade is clamped between the first pressure plate and the second pressure plate, the positioning stud can be rotated, and the end part of the positioning stud is inserted into the positioning hole, so that the movable column can be prevented from rotating in the bracket, and the saw blade is further ensured to be firmly fixed;

3. Spacing hole and the spacing groove of locating on the first pressure disk of saw bit are worn to establish through many spacing posts on the second pressure disk, and the position of spacing saw bit between first pressure disk and second pressure disk that can step forward guarantees that the saw bit can rotate along with the rotation of first pressure disk, convenient to use.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the first bracket and the second bracket of the present invention.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 4 is a schematic view of the saw blade structure of the present invention.

Fig. 5 is a schematic structural view of the positioning screw hole of the present invention.

Fig. 6 is a schematic view of the structure of the transmission shaft of the present invention.

in the figure, 1, a handle; 11. a first bracket; 111. a drive shaft; 1111. a first bevel gear; 112. a first platen; 113. a jack; 114. a limiting groove; 12. a second bracket; 121. a movable post; 1211. a baffle ring; 1212. positioning holes; 122. a top pillar; 123. a second platen; 124. inserting a column; 125. a limiting column; 126. positioning the screw hole; 127. positioning the stud; 13. a drive motor; 131. a drive gear; 2. a saw blade; 21. mounting holes; 22. a limiting hole; 3. protecting the shell; 31. a drive shaft; 311. a second bevel gear; 32. a driven gear; 4. a shield.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a hand-held type slitting saw, include handle 1 and set up in the saw bit 2 of handle 1 one end.

One end of the handle 1 is fixedly connected with a first support 11 and a second support 12 which are parallel to each other, the length directions of the first support 11 and the second support 12 are the same as the length direction of the handle 1, a driving shaft 111 rotates on the first support 11, the axial direction of the driving shaft 111 is perpendicular to the length direction of the first support 11, one end of the driving shaft 111, which is close to the second support 12, is fixedly connected with a first pressure plate 112, and the axial line of the first pressure plate 112 and the axial line of the driving shaft 111 are in the same straight line. The second bracket 12 is slidably connected with a movable column 121 coaxial with the driving shaft 111, and one end of the movable column 121 far away from the driving shaft 111 is bolted with a retaining ring 1211, and the retaining ring 1211 can prevent the movable column 121 from slipping off from one side of the second bracket 12 close to the first bracket 11. One side of the second bracket 12 is further provided with a positioning mechanism capable of fixing the movable column 121 on the second bracket 12.

one end of the movable column 121 close to the driving shaft 111 is rotatably connected with a top column 122 coaxial with the movable column 121, one end of the top column 122 close to the first pressure plate 112 is fixedly connected with a second pressure plate 123, the second pressure plate 123 and the top column 122 are coaxial, a rectangular insertion column 124 is fixedly connected at the position of the second pressure plate 123 close to the axis of one side of the first pressure plate 112, a rectangular mounting hole 21 capable of being sleeved on the insertion column 124 is formed at the position of the axis of the saw blade 2, a rectangular insertion hole 113 capable of being inserted with the insertion column 124 is formed at the position of the first pressure plate 112 corresponding to the insertion column 124, a plurality of limiting holes 22 are uniformly formed on the saw blade 2 by taking the mounting hole 21 as the center, a limiting column 125 capable of being inserted in each limiting hole 22 is fixedly connected at one side of the second pressure plate 123 close to the first pressure plate 112, a limiting groove 114 capable of being inserted with the limiting column 125 is formed at one side of the first pressure plate 112 close to the second pressure plate 123, in, the side of the first platen 112 close to the second platen 123 is also fixedly connected with a cushion pad. When the saw blade 2 needs to be replaced, the movable retaining ring 1211 drives the movable post 121 to move, so as to drive the movable post 121 to move towards one side away from the first support 11, so as to drive the top post 122 and the second pressure plate 123 to move towards the direction away from the first pressure plate 112, until the insertion post 124 of the second pressure plate 123 is separated from the insertion hole 113 of the first pressure plate 112, the saw blade 2 can be conveniently detached from the space between the first pressure plate 112 and the second pressure plate 123, then a new saw blade 2 is sleeved on the insertion post 124, the movable post 121 is rotated until the insertion post 124 is inserted into the insertion hole 113, and the first pressure plate 112 and the second pressure plate 123 tightly push against two sides of the saw blade 2.

The positioning mechanism comprises a positioning screw hole 126 arranged on one side of the second support 12, the axis direction of the positioning screw hole 126 is perpendicular to the axis direction of the movable column 121, a positioning stud 127 is further connected in the positioning screw hole 126 in a threaded manner, a positioning hole 1212, the axis direction of which is perpendicular to the axis direction of the positioning screw hole 126, is formed in the peripheral surface of the movable column 121, and when the second pressure plate 123 and the first pressure plate 112 compress the saw blade 2, the positioning screw hole 126 and the positioning hole 1212 can be in the same straight line, so that the positioning stud can be rotated, and the end part of the positioning stud is inserted into the positioning hole 1212. After the saw blade 2 is clamped between the first pressure plate 112 and the second pressure plate 123, the studs of the top post 122 can be rotated, so that the end parts of the positioning studs 127 are inserted into the positioning holes 1212, thereby preventing the movable sleeve from rotating in the bracket and further ensuring the saw blade 2 to be firmly fixed.

One side of the second support 12 of keeping away from of first support 11 is rigid coupling has protective housing 3, be provided with in the protective housing 3 and drive the pivoted actuating mechanism of drive shaft 111, actuating mechanism is including rotating the transmission shaft 31 of connecting in first support 11 and keeping away from second support 12 one side, the axis direction of transmission shaft 31 is the same with the length direction of handle 1, and the one end of transmission shaft 31 extends to handle 1 inside and is provided with drive arrangement, the one end rigid coupling that the transmission shaft 31 is close to drive shaft 111 has second bevel gear 311, the one end rigid coupling that the first pressure disk 112 was kept away from to drive shaft 111 has first bevel gear 1111 who meshes in second bevel gear 311. During operation, the driving device drives the transmission shaft 31 to rotate, and can drive the first bevel gear 1111 to rotate through the second bevel gear 311, so as to realize rotation of the driving shaft 111, and further drive the saw blade 2 to rotate. The driving device comprises a driving motor 13 fixedly connected in the handle 1, an output shaft of the driving motor 13 is fixedly connected with a driving gear 131, and one end of the transmission shaft 31 extending into the handle 1 is also fixedly connected with a driven gear 32 meshed with the driving gear 131. Drive gear 131 through driving motor 13 and rotate, can drive driven gear 32 and rotate to can drive transmission shaft 31 and rotate convenient to use.

The protection cover 4 is fixedly connected to one side, close to each other, of the first support 11 and the second support 12, and the protection cover 4 can cover one side, close to the handle 1, of the saw blade 2, so that an operator is prevented from being accidentally injured when the saw blade 2 rotates.

The implementation principle of the embodiment is as follows: during the use, driving motor 13 drives drive gear 131 and rotates, can drive driven gear 32 and rotate to can drive transmission shaft 31 and rotate, then, drive first bevel gear 1111 through second bevel gear 311 and rotate, realize the rotation of drive shaft 111, and then drive the saw bit 2 rotation between first pressure disk 112 and the second pressure disk 123. When the saw blade 2 needs to be replaced, the sliding stop ring 1211 drives the movable column 121 to move, so as to drive the movable column 121 to move towards one side away from the first support 11, so as to drive the top column 122 and the second pressure plate 123 to move towards the direction away from the first pressure plate 112, until the insertion column 124 of the second pressure plate 123 is separated from the insertion hole 113 of the first pressure plate 112, the saw blade 2 can be conveniently detached from the space between the first pressure plate 112 and the second pressure plate 123, then a new saw blade 2 is sleeved on the insertion column 124, the movable column 121 is rotated until the insertion column 124 is inserted into the insertion hole 113, and the first pressure plate 112 and the second pressure plate 123 tightly push against two sides of the saw blade 2.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A hand-held dicing saw, characterized in that: including handle (1), the one end rigid coupling of handle (1) has first support (11) and second support (12) that are parallel to each other, and first support (11) tend to the direction of second support (12) and rotate and be connected with drive shaft (111), the one end rigid coupling that drive shaft (111) tip is close to second support (12) has first pressure disk (112) with drive shaft (111) coaxial line, and second support (12) tend to first support (11) direction and slide and be connected with activity post (121) with drive shaft (111) coaxial line, the one end rotation that activity post (121) is close to drive shaft (111) is connected with fore-set (122), fore-set (122) tip rigid coupling have with fore-set (122) coaxial line and along with fore-set (122) remove can butt in second pressure disk (123) the opposite side of saw bit (2), mounting hole (21) have been seted up in the middle part of saw bit (2), the axis position department rigid coupling of second pressure disk (123) is equipped with can wear to establish inserting post (124) of mounting hole (21), it has jack (113) that can insert and establish and insert post (124) to open on first pressure disk (112), be provided with on second support (12) and accomplish the positioning mechanism who moves about post (121) location, still be provided with in handle (1) and drive shaft (111) pivoted actuating mechanism.

2. A hand-held dicing saw according to claim 1, wherein: the positioning mechanism comprises a positioning stud (127) which is connected to the second support (12) in a threaded mode, the axial direction of the positioning stud is perpendicular to the axial direction of the sliding column, and the end portion of the positioning stud (127) can abut against the peripheral surface of the movable column (121) along with rotation.

3. A hand-held dicing saw according to claim 2, wherein: the peripheral surface of the movable column (121) is provided with a positioning hole (1212) which can insert the positioning stud (127) when the second pressure plate (123) and the first pressure plate (112) compress the saw blade (2).

4. A hand-held dicing saw according to claim 1, wherein: a retaining ring (1211) is fixedly connected to one end of the movable column (121) far away from the top column (122).

5. A hand-held dicing saw according to claim 1, wherein: use mounting hole (21) to seted up a plurality of spacing holes (22) as the center on saw bit (2), the equal rigid coupling in position that second pressure disk (123) correspond each spacing hole (22) is equipped with can wear to establish each spacing hole (22) spacing post (125), spacing groove (114) that can insert each spacing post (125) are seted up to one side that second pressure disk (123) are close to first pressure disk (112).

6. A hand-held dicing saw according to claim 1, wherein: the buffer pads are fixedly connected to one sides of the first pressing plate (112) and the second pressing plate (123) close to each other.

7. A hand-held dicing saw according to claim 1, wherein: and a protective cover (4) which can cover the side of the saw blade (2) close to the handle (1) is fixedly connected between the first bracket (11) and the second bracket (12).