CN217253284U - Multi-angle shaft locking device for electric circular saw - Google Patents
Multi-angle shaft locking device for electric circular saw Download PDFInfo
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- CN217253284U CN217253284U CN202123204447.5U CN202123204447U CN217253284U CN 217253284 U CN217253284 U CN 217253284U CN 202123204447 U CN202123204447 U CN 202123204447U CN 217253284 U CN217253284 U CN 217253284U
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Abstract
The utility model discloses an electric circular saw multi-angle shaft locking device, electric circular saw include casing, motor and install the motor shaft on the motor, multi-angle shaft locking device include axle lock stationary blade and multi-angle axle locking piece, multi-angle axle locking piece cover establish and fix on the motor shaft, be equipped with movable hole and lockhole on the axle lock stationary blade, movable hole and lockhole intercommunication work as multi-angle axle locking piece is located movable hole, and the motor shaft rotates, works as multi-angle axle locking piece when being located the lockhole, the motor shaft locking. The utility model discloses the multi-angle axle locking piece of hexagon nut structure can rotate 60 degrees at most at the motor shaft and can find the axle lock position, adopts the mode of rectilinear movement axle lock stationary blade to block the multi-angle axle locking piece in the lockhole in addition, compares the axle lock mode of current round pin axle, and this application uses more fast and convenient.
Description
Technical Field
The utility model belongs to the technical field of electric tool, specifically be an electric circular saw multi-angle shaft locking device.
Background
The electric circular saw is a tool which takes a single-phase series motor as power and drives a circular saw blade to saw through a transmission mechanism, and has the characteristics of safety, reliability, reasonable structure, high working efficiency and the like. The electric circular saw adopts a lifting appearance structure and mainly comprises a motor, a reduction gearbox, a protective cover, an adjusting mechanism, a bottom plate, a handle, a switch, a non-reconnectable plug, a circular saw blade and the like.
The circular saw blade is electric circular saw's operation instrument, and the circular saw blade is using the follow-up change to it of a period, need lock the motor shaft at the change in-process, prevents that the motor shaft from rotating. The existing shaft locking method is to open a hole on a motor shaft and then insert a pin shaft, and the insertion can be carried out only by rotating the motor shaft and finding an insertion hole. And because the motor shaft trompil for the shape of motor shaft is asymmetric, thereby cause the electric circular saw during operation, the vibrations that produce are great.
Disclosure of Invention
In order to the difficult, waste time and energy, the great problem of electric circular saw working process vibrations among the prior art shaft lock mode, this application provides an electric circular saw multi-angle shaft lock device and solves the problem that exists among the above-mentioned prior art.
The purpose of this application is accomplished through following technical scheme, an electric circular saw multi-angle shaft locking device, electric circular saw include casing, motor and install the motor shaft on the motor, multi-angle shaft locking device include axle locking piece and multi-angle axle locking piece, multi-angle axle locking piece cover establish and fix on the motor shaft, be equipped with movable hole and lockhole on the axle locking piece, movable hole and lockhole intercommunication work as multi-angle axle locking piece is located the movable hole, and the motor shaft rotates, works as multi-angle axle locking piece when being located the lockhole, the motor shaft locking.
Preferably, the multi-angle shaft locking block is in a hexagonal nut structure.
Preferably, the movable hole is of a circular hole structure, the inner diameter of the movable hole is larger than the outline size of the multi-angle shaft locking block, and parallel limiting edges matched with the multi-angle shaft locking block for limiting are arranged on the upper side and the lower side of the locking hole.
Preferably, one end of the shaft locking fixing piece is provided with a convex strip, a return spring is sleeved on the convex strip, one end of the return spring is propped against the shaft locking fixing piece, and the other end of the return spring is propped against the shell; the other end of the shaft locking piece extends out of the shell and is provided with a pressing plate.
Compared with the prior art, the application has the following obvious advantages and effects:
1. the utility model discloses the multi-angle shaft locking piece of hexagon nut structure can rotate 60 degrees at most at the motor shaft and can find the shaft lock position, adopts the mode of rectilinear movement shaft lock stationary blade to block multi-angle shaft locking piece in the lockhole moreover, compares the shaft lock mode of current round pin axle, and this application uses more fast and convenient.
2. The utility model discloses fix the hexagon structure of multi-angle axle locking piece on the motor shaft for the symmetry, can reduce the vibrations that the asymmetry caused itself behind the motor shaft trompil, the during operation, electric circular saw is more steady.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a plan view of the present invention;
FIG. 3 is a structural diagram of the middle shaft lock fixing piece of the present invention;
FIG. 4 is a structural view of the whole electric circular saw of the present invention;
1-a machine shell; 2, a motor; 3-motor shaft; 4-motor gear; 5-gear set; 6-saw blade; 7-shaft locking piece; 8-multi-angle shaft locking block; 9-a return spring; 71-a movable hole; 72-keyhole; 73-convex strips; 74-pressing plate.
Detailed Description
Specific embodiments thereof are described below in conjunction with the following description and the accompanying drawings to teach those skilled in the art how to make and use the best mode of the present application. For the purpose of teaching application principles, the following conventional aspects have been simplified or omitted. Those skilled in the art will appreciate variations from these embodiments that fall within the scope of the present application. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the present application. In the present application, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, and are not used to limit the scope of the invention, and the relative relationship between the terms and the corresponding terms may be changed or adjusted without substantial technical change. Thus, the present application is not limited to the specific embodiments described below, but only by the claims and their equivalents.
As shown in fig. 1 to 4, this embodiment relates to an electric circular saw multi-angle shaft locking device, the electric circular saw include casing 1, motor 2 and install motor shaft 3 on the motor, motor shaft 3's end sets up motor gear 4, motor gear 4 passes through gear train 5 and is connected with the saw bit axle, saw bit 6 is installed to the end of saw bit axle, motor 5, motor shaft 3, gear train 5 and saw bit axle all locate in casing 1. Multi-angle shaft locking device include axle locking stationary blade 7 and multi-angle shaft locking piece 8, 8 covers of multi-angle shaft locking piece establish and fix on motor shaft 3, along with motor shaft 3 synchronous rotation, be equipped with movable hole 71 and lockhole 72 on the axle locking stationary blade 7, movable hole 71 and lockhole 72 intercommunication work as multi-angle shaft locking piece 8 is located movable hole 71, motor shaft 3 can rotate, work as multi-angle shaft locking piece 8 when being located lockhole 72, motor shaft 3 is locked.
As shown in fig. 2 and 3, the multi-angle shaft locking block 8 has a hexagonal nut structure. The movable hole 71 is of a circular hole structure, the inner diameter of the movable hole 71 is larger than the outline size of the multi-angle shaft lock block 8, parallel limiting edges matched with the multi-angle shaft lock block 8 are arranged on the upper side and the lower side of the lock hole 72, and when the lock hole 72 moves to the angle shaft lock block 8, the hexagonal limiting edges can just clamp two edges of the multi-angle shaft lock block 8.
One end of the shaft locking fixing piece 7 is provided with a convex strip 73, a return spring 9 is sleeved on the convex strip 73, one end of the return spring 9 is propped against the shaft locking fixing piece 7, and the other end is propped against the machine shell 3; the other end of the shaft locking piece 7 extends out of the shell 3 and is provided with a pressing plate 74.
The utility model discloses a theory of operation:
under initial state, multi-angle axle locking piece 8 is located the movable hole 71 of axle locking piece 7, operating personnel presses down press plate 74, axle locking piece 7 removes, simultaneously slow rotation saw bit 6, thereby indirectly drive multi-angle axle locking piece 8 on the motor shaft 3 and rotate, when the lower two spacing limit parallel and level of wherein both sides and lockhole 72 of multi-angle axle locking piece 8, lockhole 72 removes and including multi-angle axle locking piece 8 parcel, thereby restriction multi-angle axle locking piece 8 and motor shaft 3 rotate, change behind the saw bit 3, loosen press plate 74 and can reset under reset spring 9's effort.
Since any modifications, equivalents, improvements, etc. made within the spirit and principles of the application may readily occur to those skilled in the art, it is intended to be included within the scope of the claims of this application.
Claims (4)
1. The utility model provides an electric circular saw multi-angle shaft locking device, electric circular saw include casing, motor and install the motor shaft on the motor, its characterized in that, multi-angle shaft locking device include axle lock stationary blade and multi-angle axle locking piece, multi-angle axle locking piece cover establish and fix on the motor shaft, be equipped with movable hole and lockhole on the axle lock stationary blade, movable hole and lockhole intercommunication work as multi-angle axle locking piece is located the movable hole, and the motor shaft rotates, works as multi-angle axle locking piece when being located the lockhole, the motor shaft locking.
2. The multi-angle shaft lock assembly of claim 1, wherein the multi-angle shaft lock block has a hexagonal nut structure.
3. The multi-angle shaft lock device of the electric circular saw as claimed in claim 1, wherein the movable hole has a circular hole structure, the inner diameter of the movable hole is larger than the contour dimension of the multi-angle shaft lock block, and parallel position-limiting edges are disposed on the upper and lower sides of the lock hole to be matched with the multi-angle shaft lock block for limiting.
4. The multi-angle shaft lock device of the electric circular saw as claimed in claim 1, wherein a protrusion is formed at one end of the shaft lock fixing piece, a return spring is sleeved on the protrusion, one end of the return spring abuts against the shaft lock fixing piece, and the other end of the return spring abuts against the casing; the other end of the shaft locking piece extends out of the shell and is provided with a pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123204447.5U CN217253284U (en) | 2021-12-20 | 2021-12-20 | Multi-angle shaft locking device for electric circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123204447.5U CN217253284U (en) | 2021-12-20 | 2021-12-20 | Multi-angle shaft locking device for electric circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217253284U true CN217253284U (en) | 2022-08-23 |
Family
ID=82888376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123204447.5U Active CN217253284U (en) | 2021-12-20 | 2021-12-20 | Multi-angle shaft locking device for electric circular saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217253284U (en) |
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2021
- 2021-12-20 CN CN202123204447.5U patent/CN217253284U/en active Active
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