CN219358130U - Hand-held electric circular saw - Google Patents

Abstract

The present disclosure provides a hand-held electric circular saw, comprising: a housing; the shield is detachably arranged at one end of the shell; the handle consists of a first handle shell and a second handle shell which are separable; the first handle shell and the machine shell are integrally formed, and the second handle shell and the shield are integrally formed. The handheld electric circular saw disclosed by the disclosure is smaller in overall size and convenient to operate.

Description

Hand-held electric circular saw

Technical Field

The present disclosure relates to the field of power tools, and more particularly, to a hand-held electric circular saw.

Background

The electric circular saw is a tool which uses a motor as power and drives a circular saw blade to carry out sawing operation through a reduction gearbox, and has the characteristics of safety, reliability, high working efficiency and the like. The electric circular saw adopts a lifting and climbing type appearance structure and mainly comprises a motor, a reduction gearbox, a shield, a handle, a switch, a circular saw blade and the like.

The structure of the existing electric circular saw is mature, and the size of the electric circular saw is difficult to be further limited in structural arrangement, so that the whole size of the existing electric circular saw is difficult to be further reduced, and the electric circular saw is not beneficial to the miniaturization and light weight development of the electric circular saw.

Disclosure of Invention

Accordingly, the present disclosure is directed to a handheld electric circular saw with smaller overall size, which is beneficial for miniaturization and light weight development of the handheld electric circular saw.

Based on the above object, the present disclosure provides a hand-held electric circular saw comprising:

a housing;

the shield is detachably arranged at one end of the shell;

the handle consists of a first handle shell and a second handle shell which are separable;

the first handle shell and the shell are integrally formed, and the second handle shell and the shield are integrally formed.

Further, the direction in which the first handle case and the second handle case are separable coincides with the direction in which the housing case and the shield are separable.

Further, the separable direction of the first and second handle shells is parallel to the axis of the housing.

Further, the shell is cylindrical; the first handle shell comprises a first main body for holding and a first edge positioned on one side surface of the first main body; the first edge and the cambered surface of the shell are integrally formed.

Further, the first handle case includes a first body for gripping and a first edge located at one side of the first body; the first side and a side surface of the shell, which is far away from the shield, are integrally formed.

Further, the first handle case includes a first body for gripping and a first edge located at one side of the first body; the first side and one side surface of the shell, which is close to the shield, are integrally formed.

Further, the second handle case includes a second body for gripping and a second edge located at one side of the second body; the second edge and the arc-shaped outer surface of the shield are integrally formed.

Further, the second handle case includes a second body for gripping and a second edge located at one side of the second body; the second side and one side surface of the shield, which is close to the shell, are integrally formed.

Further, the second handle case includes a second body for gripping and a second edge located at one side of the second body; the second side and one side of the shield far away from the shell are integrally formed.

Further, the integral molding includes injection molding.

Compared with the prior art, the technical scheme that this disclosure provided will, with first handle shell and casing integrated into one piece, makes handheld electric circular saw overall size reduce, guard shield and second handle shell integrated into one piece, makes the handle position press close to the saw bit more, and the operation of being convenient for does benefit to miniaturization, the lightweight development of handheld electric circular saw.

Drawings

In order to more clearly illustrate the technical solutions of the present disclosure or related art, the drawings required for the embodiments or related art description will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to those of ordinary skill in the art.

FIG. 1 is an exploded schematic view of a hand-held electric circular saw provided by an embodiment of the present disclosure;

fig. 2 is a cross-sectional view of a hand-held electric circular saw provided in an embodiment of the present disclosure.

Detailed Description

For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.

It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present disclosure pertains. The terms "first," "second," and the like, as used in embodiments of the present disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Electric tools, particularly small-sized hand-held electric tools such as hand-held electric circular saws, are being developed in the direction of miniaturization and weight reduction for easier use. The inventor finds that the matching among the components of the battery pack, the control board, the motor, the reduction gearbox, the circular saw blade and the like in the existing handheld electric circular saw is finer and finer, the placement position also has realized the maximization of space utilization, and no space for further compression exists. Therefore, how to further shorten the overall length of the hand-held electric circular saw is a problem to be solved.

In addition, the existing hand-held electric circular saw generally has a handle as a whole disposed at one end of the casing far away from the shield, or the handle adopts a socket-joint mounting manner. The distance between the handle and the shield as well as between the handle and the circular saw blade is too large, which is inconvenient to use.

For this reason, this disclosure provides a handheld electric circular saw, can shorten the whole size of handheld electric circular saw, facilitate the use. As shown in fig. 1, a hand-held electric circular saw includes:

the casing 100 is used for accommodating the motor and is cylindrical in shape as a whole.

The cover 200 is detachably provided at one side of the casing 100 for protecting the saw blade from an injury accident during operation. The separable manner can be completed by fastening elements such as hooks or screws. The shield 200 may be made of aluminum alloy, magnesium alloy or reinforced plastic.

A saw blade detachably connected to an output shaft of the reduction gearbox 500 (not shown). The shroud 200 semi-encloses the saw blade. The saw blades with different specifications can be installed selectively according to the requirements of the working environment. The specific construction of the saw blade may be of prior art and will not be described in detail herein for brevity.

The handle is in a Half structure, namely, consists of a first handle shell 310 and a second handle shell 320 which are separable and are held by a user. As shown in fig. 1, the separable direction of the first handle case 310 and the second handle case 320 is identical to the separable direction of the casing 100 and the cover 200, and is a left-right half-case type, which is easier to assemble, and can reduce the relative distance between the casing 100 and the cover 200, thereby reducing the overall size of the hand-held electric circular saw and facilitating use. The direction in which the first handle case 310 and the second handle case 320 are separable is the direction of arrows a and B in fig. 1. Specifically, the cover 200 is detachably disposed on one side of the casing 100 in a direction parallel to the axis of the casing 100. The separable direction of the first handle case 310 and the second handle case 320 is parallel to the axis of the cabinet 100. The axis of the housing 100 is shown as O-O in fig. 2.

And a motor provided on the casing 100 for providing power. The motor includes a rotor 410, a stator 420, and a motor shaft 430 that are used in conjunction. As shown in fig. 2, the motor is preferably an external rotor motor, and the rotor 410 is sleeved outside the stator 420. Rotor 410 includes conventional components such as magnetic steel. The stator 420 includes conventional components such as a core. The motor shaft 430 includes oppositely disposed first and second ends.

The reduction gearbox 500 is connected with the motor shaft 430 and the saw blade and is used for transmitting motor power to drive the saw blade to rotate. The reduction gearbox 500 also includes other conventional structures such as an output shaft, a driving gear, a driven gear, and the like. The specific construction of the reduction gearbox 500 can be adapted by those skilled in the art according to the specific work requirements. For example: the driving gear is sleeved at one end of the motor shaft 430, the driving gear is meshed with the driven gear, the driven gear is sleeved on the output shaft, and the output shaft is connected with the saw blade. When the motor is started, the motor shaft 430 drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the output shaft to rotate, and the output shaft drives the saw blade to rotate, so that electric operation is realized.

The first handle case 310 is integrally formed with the housing 100, omitting a portion of the housing 100 where the handle is mounted, and reducing the overall size of the hand-held electric circular saw. Specifically, the casing 100 has a cylindrical shape as a whole, and the first handle case 310 includes a first body for holding and a first edge located at one side of the first body. The first side is integrally formed with the arcuate surface of the housing 100. The integral molding is preferably injection molded as one piece. Of course, other integrally formed arrangement modes such as screws, bolts and the like can also be adopted.

The second handle case 320 is integrally formed with the cover 200, so that the handle is positioned closer to the saw blade, the operation is convenient, the assembly process of the hand-held electric circular saw is simplified, and the manufacturing cost is lower. Specifically, the second handle case 320 includes a second body for gripping and a second edge located at one side of the second body. The second side is integrally formed with the arcuate outer surface of the shroud 200.

In some embodiments, the difference from the above embodiments is that the first edge is integrally formed with a side of the chassis 100 remote from the shroud 200.

Alternatively, the first side is integrally formed with a side of the casing 100 adjacent to the shroud 200.

The whole size of the handheld electric circular saw can be further reduced, the operation is convenient, and the miniaturization and the light weight development of the handheld electric circular saw are facilitated.

In some embodiments, the second edge is integrally formed with a side of the shroud 200 adjacent to the chassis 100, as opposed to the embodiments described above.

Alternatively, the second side is integrally formed with a side of the shroud 200 remote from the chassis 100.

The handle can be positioned closer to the saw blade, and the operation is convenient.

To perform the basic functions of the hand-held electric circular saw, the hand-held electric circular saw in embodiments of the present disclosure may also include other necessary modules or components, such as power supplies, circuits, switches, and the like. It should be noted that any suitable existing configuration may be selected for the other necessary modules or components included in the hand-held electric circular saw. For clarity and brevity, the technical solutions provided by the present disclosure will not be repeated here, and the drawings in the description are correspondingly simplified. It should be understood that the disclosure is not limited in scope thereby.

The following technical effects are achieved in the above embodiments of the present disclosure: the detachable direction of the first handle case 310 and the second handle case 320 is identical to the detachable direction of the casing 100 and the cover 200, so that the overall size of the hand-held electric circular saw is reduced. The first handle case 310 is integrally formed with the housing 100, so that the overall size of the hand-held electric circular saw is smaller; the shield 200 and the second handle case 320 are integrally formed, so that the position of the handle is closer to the saw blade, the operation is convenient, and the miniaturization and the light weight development of the handheld electric circular saw are facilitated.

While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description.

The disclosed embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalents, improvements, and the like, which are within the spirit and principles of the embodiments of the disclosure, are intended to be included within the scope of the disclosure.

Claims (10)

1. A hand-held electric circular saw, comprising:

a housing;

the shield is detachably arranged at one end of the shell;

the handle consists of a first handle shell and a second handle shell which are separable;

the first handle shell and the machine shell are integrally formed, and the second handle shell and the shield are integrally formed.

2. The hand-held electric circular saw according to claim 1, wherein the direction in which the first and second handle cases are separable coincides with the direction in which the housing and the cover are separable.

3. The hand-held electric circular saw of claim 2, wherein the separable direction of the first and second handle shells is parallel to the axis of the housing.

4. The hand-held electric circular saw of claim 1, wherein the housing is cylindrical; the first handle shell comprises a first main body for holding and a first edge positioned on one side surface of the first main body; the first edge and the cambered surface of the shell are integrally formed.

5. The hand-held electric circular saw according to claim 1, wherein the first handle housing includes a first body for gripping and a first edge on one side of the first body; the first edge and one side surface of the shell, which is far away from the shield, are integrally formed.

6. The hand-held electric circular saw according to claim 1, wherein the first handle housing includes a first body for gripping and a first edge on one side of the first body; the first edge and one side surface of the shell, which is close to the shield, are integrally formed.

7. The hand-held electric circular saw according to claim 1, wherein the second handle housing includes a second body for gripping and a second edge on one side of the second body; the second edge and the arc-shaped outer surface of the shield are integrally formed.

8. The hand-held electric circular saw according to claim 1, wherein the second handle housing includes a second body for gripping and a second edge on one side of the second body; the second edge and one side surface of the shield, which is close to the shell, are integrally formed.

9. The hand-held electric circular saw according to claim 1, wherein the second handle housing includes a second body for gripping and a second edge on one side of the second body; the second edge and one side surface, far away from the shell, of the shield are integrally formed.

10. The hand-held electric circular saw of claim 1, wherein the integral molding comprises injection molding.