Portable angle grinder

Abstract

The utility model discloses a portable angle grinder, which belongs to the technical field of angle grinders, solves the problem of long time consumption for replacing a cutting edge, and adopts the technical scheme that the portable angle grinder mainly comprises a shell, the main shaft is rotationally mounted on the shell and is used for fixedly mounting a cutting edge; the cover body is mounted on the shell and surrounds the outer side of the main shaft; the driving source provides driving force for rotation of the main shaft; the clamping piece is movably installed on the shell, and the clamping piece has a clamping state and a separating state; wherein the cover body is provided with a clamping hole, and when the clamping piece is in a clamping state, the clamping piece is clamped in the clamping hole and prevents the cover body from being separated from the shell; the utility model has the advantages that the connection state of the clamping piece and the clamping hole on the cover body is switched through the movement of the clamping piece, so that the connection limitation switching between the cover body and the shell is realized, the disassembly and assembly between the cover body and the shell are convenient, the assembly and disassembly are convenient, the assembly and disassembly are convenient, the assembly and disassembly are convenient, the assembly and disassembly are convenient, and the assembly and disassembly are convenient. And therefore, the cutting blade is convenient and quick to disassemble and replace, and the production and processing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of angle grinders, in particular to a portable angle grinder. BACKGROUND

[0002] The angle grinder, also known as a grinder or disc grinder, is a kind of grinding tool for cutting and grinding glass steel, mainly used for cutting, grinding and brushing metal and stone materials. The main components of the angle grinder include a motor, a main housing, a handle and a cutting disc. The cutting disc usually includes a cutting blade and a protective cover.

[0003] After a long time of use, the cutting blade in the cutting disc is severely worn, and the cutting blade needs to be replaced to ensure the processing quality and production safety. When replacing the cutting blade, the protective cover needs to be removed first, which is a cumbersome and time-consuming process, affecting the production and processing efficiency. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above problems, the present application provides a portable angle grinder.

[0005] The portable angle grinder provided by the present application adopts the following technical scheme:

[0006] A portable angle grinder comprises:

[0007] a housing;

[0008] a main shaft rotatably installed on the housing and used for fixedly installing a cutting blade;

[0009] a cover body installed on the housing and surrounding the outside of the main shaft;

[0010] a driving source providing driving force for the rotation of the main shaft;

[0011] Further comprising:

[0012] a clamping piece movably installed on the housing, and the clamping piece has a clamping state and a disengagement state;

[0013] wherein a clamping hole is formed in the cover body, when the clamping piece is in the clamping state, the clamping piece is clamped in the clamping hole and prevents the cover body from being separated from the housing; when the clamping piece is in the disengagement state, the clamping piece is disengaged from the clamping hole and the cover body can be separated from the housing.

[0014] Further preferably, a rotating shaft is rotatably connected to the housing, and the clamping piece is fixedly installed on the rotating shaft.

[0015] Further preferably, the rotating shaft is provided with an anti-disengagement piece for fastening the clamping piece, and the anti-disengagement piece is detachably installed on the rotating shaft.

[0016] Further preferably, an elastic member is connected between the clamping member and the housing, and the elastic potential energy of the elastic member when the clamping member is in the disengaged state is greater than the elastic potential energy of the elastic member when the clamping member is in the clamped state.

[0017] Further preferably, the clamping member has a tab portion.

[0018] Further preferably, a control panel for human-computer interaction is mounted on the housing, and the control panel is electrically connected with the driving source.

[0019] Further preferably, the housing has a foot plate for mounting a battery for providing electric energy for the driving source.

[0020] Further preferably, the control panel has a display screen for displaying the remaining battery capacity.

[0021] Further preferably, the control panel is provided with an adjusting button for adjusting the rotation speed of the main shaft.

[0022] Further preferably, the angle grinder further comprises a power transmission mechanism connected between the driving source and the main shaft, the driving source comprises a motor having a rotor, and the rotor is integrally formed with the power transmission mechanism.

[0023] In summary, the present application has at least the following advantages:

[0024] The housing of the angle grinder is provided with a clamping member, and the connection state between the clamping member and the clamping hole on the cover body is switched by the movement of the clamping member, so as to switch the connection restriction between the cover body and the housing, facilitate the disassembly of the cover body and the housing, and further facilitate the disassembly and replacement of the cutting blade, which is convenient and efficient and improves the production and processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a perspective structural schematic view of a portable angle grinder;

[0026] Figure 2 is Figure 1 is a perspective structural schematic view from another angle;

[0027] Figure 3 is Figure 2 is a local enlarged view of A in FIG. 4;

[0028] Figure 4 is a side view cut schematic view of a portable angle grinder;

[0029] Figure 5 is a perspective structural schematic view of a cover body;

[0030] Figure 6 is an exploded schematic view of a clamping member, an elastic member, and a rotating shaft.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Housing; 2. Spindle; 3. Cover; 4. Foot plate; 5. Clamping device; 6. Anti-detachment device; 7. Control panel; 8. Rotor; 9. Sleeve; 10. Clamping hole; 11. Clamping device; 12. Paddle part; 13. Through hole; 14. Elastic element; 15. Shaft. Detailed Implementation

[0033] The specific embodiments of this utility model are described in detail below. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0034] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the orientation in the assembled and used state. "Inner" and "outer" refer to the inner and outer sides relative to the outline of each component itself.

[0035] This utility model discloses a portable angle grinder, as shown in the attached figure. Figure 1 To be continued Figure 4 As shown, the angle grinder includes a housing 1, a spindle 2, a cover 3, a clamping device 5, and a drive source. The spindle 2 is rotatably mounted on the housing 1 and is used to fix the cutting blade (not shown). The cover 3 is mounted on the housing 1 and surrounds the outside of the spindle 2, providing protection for the cutting blade. The cover 3 has a clamping hole 10. The drive source provides driving force for the rotation of the spindle 2.

[0036] The locking element 5 is movably mounted on the housing 1 and has a locking state and a disengaged state. The locking state and the disengaged state are switched by the movement of the locking element 5. Specifically, when the locking element 5 is in the locking state, the locking element 5 is engaged in the locking hole 10 and prevents the cover 3 from disengaging from the housing 1. When the locking element 5 is in the disengaged state, the locking element 5 is disengaged from the locking hole 10 and the cover 3 can be disengaged from the housing 1, thereby allowing the cover 3 to be removed from the housing 1.

[0037] In this embodiment, combined with the appendix Figure 5 The cover 3 has a hollow shaft-shaped sleeve portion 9, and a locking hole 10 is formed on the sleeve portion 9. The cover 3 and the housing 1 are connected by a sleeve connection. The locking member 5 has a locking portion 11 for locking into the locking hole 10. After the locking portion 11 is locked into the locking hole 10, it restricts the cover 3 along the sleeve direction between the cover 3 and the housing 1 to prevent the cover 3 from detaching from the housing 1.

[0038] In addition, the plurality of clamping holes 10 are arranged along the circumference of the sleeve joint 9, and the clamping portion 11 on the clamping piece 5 is clamped in one of the clamping holes 10 to achieve the clamping effect. In the disengaged state, the cover body 3 can rotate relative to the shell 1 to adjust the posture of the cover body 3, and after the posture of the cover body 3 is determined, the clamping portion 11 on the clamping piece 5 is clamped in one of the clamping holes 10. That is, the arrangement of the plurality of clamping holes 10 can meet the installation of the cover body 3 in multiple postures, thereby meeting more assembly requirements.

[0039] Further preferably, in combination with the accompanying drawings Figure 6 The shell 1 is rotatably connected to a rotating shaft 15, and the clamping piece 5 is fixedly installed on the rotating shaft 15. In this embodiment, the clamping piece 5 is movably installed on the shell 1 in a rotating manner, and the clamping piece 5 is rotated to switch between the clamped state and the disengaged state. Of course, in other embodiments, the clamping piece 5 can be slidably installed on the shell 1, and the clamping piece 5 is slid to switch between the clamped state and the disengaged state.

[0040] Further preferably, the rotating shaft 15 is provided with an anti-disengagement piece 6 for fastening the clamping piece 5, and the anti-disengagement piece 6 is detachably installed on the rotating shaft 15. Specifically, a through hole 13 is formed on the clamping piece 5 for cooperating with the shaft hole of the rotating shaft 15. The rotating shaft 15 is a hollow shaft, and the inner shaft is threaded. The anti-disengagement piece 6 is a fastening bolt. The clamping piece 5 is sleeved on the rotating shaft 15, and the fastening bolt is threadedly connected with the rotating shaft 15 to fasten the clamping piece 5 on the rotating shaft 15, so as to prevent the clamping piece 5 from falling off the rotating shaft 15. In addition, the clamping piece 5 is detachably connected with the rotating shaft 15, which is convenient for maintenance and replacement of the clamping piece 5. In other embodiments, the anti-disengagement piece 6 can also be a fastening pin or other fastening piece, and a pin hole is formed on the rotating shaft 15 for cooperating with the fastening pin.

[0041] Further preferably, the clamping piece 5 is connected with the shell 1 through an elastic piece 14, and the elastic potential energy of the elastic piece 14 when the clamping piece 5 is in the disengaged state is greater than the elastic potential energy of the elastic piece 14 when the clamping piece 5 is in the clamped state. That is, the elastic force of the elastic piece 14 always has a tendency to switch the clamping piece 5 to the clamped state during use. When the clamping piece 5 is in the clamped state, a certain force is required to overcome the elastic force of the elastic piece 14 to switch the clamping piece 5 from the clamped state to the disengaged state, thereby ensuring the reliability of the clamping piece 5 in the clamped state and improving the reliability of the cover body 3 against falling off. In this embodiment, the elastic piece 14 is a torsion spring, one end of which is fixedly connected to the clamping piece 5, and the other end is fixedly connected to the shell 1, so as to meet the use requirement of the clamping piece 5 for switching between the clamped state and the disengaged state by rotating. When the clamping piece 5 switches between the states by sliding, the elastic piece 14 can also be a telescopic spring.

[0042] Further preferably, the card piece 5 is provided with a dial piece 12. The dial piece 12 is arranged to facilitate the operation of the card piece 5 to switch from the clamping state to the disengaged state. In the embodiment, the card piece 5 is switched in a rotating manner, and the dial piece 12 is arranged at one end of the card piece 5 away from the rotating shaft 15 to increase the moment of the dial piece 12 and the rotating center of the card piece 5.

[0043] Further preferably, the shell 1 is provided with a control panel 7 for human-computer interaction, and the control panel 7 is electrically connected with the driving source to improve the human-computer interaction and the controllability.

[0044] Further preferably, the shell 1 is provided with a foot plate 4 for mounting a battery for providing power for the driving source. In the embodiment, different types of batteries can be mounted on the foot plate 4 to meet different use requirements.

[0045] Further preferably, the control panel 7 is provided with a display screen for displaying the remaining battery capacity, so that the operator can replace the battery in time to ensure the continuity of production and processing.

[0046] Further preferably, the control panel 7 is provided with an adjusting button for adjusting the rotating speed of the main shaft 2 to meet more processing requirements.

[0047] Further preferably, the angle grinder further comprises a power transmission mechanism (not shown) connected between the driving source and the main shaft 2, and the driving source comprises a motor (not shown) with a rotor 8, and the rotor 8 is integrally formed with the power transmission mechanism, thereby reducing the production cost and stabilizing the power transmission.

[0048] The disassembly steps of the portable angle grinder are as follows:

[0049] Firstly, the card piece 5 is rotated to disengage the clamping part 11 from the clamping hole 10 to release the restriction on the cover body 3.

[0050] Secondly, the cover body 3 and the cutting blade are disassembled from the shell 1.

[0051] Then, the new cover body 3 and the cutting blade are mounted on the shell 1.

[0052] Finally, the card piece 5 is rotated to clamp the clamping part 11 into the clamping hole 10 of the cover body 3 to clamp and restrict the cover body 3.

[0053] The whole disassembly process is convenient and fast, and the disassembly steps are simple, thereby reducing the influence on the production and processing efficiency.

[0054] The preferred embodiments of the present application are described in detail above, but the present application is not limited to the specific details in the above-described embodiments, and various simple modifications can be made to the technical solutions of the present application within the technical concept of the present application, and these simple modifications all belong to the protection scope of the present application.

[0055] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present application will not further describe various possible combinations.

[0056] In addition, various different embodiments of the present application can also be combined in any manner, as long as they do not deviate from the concept of the present application, and they should also be considered as disclosed by the present application.

Claims

1. A portable angle grinder, comprising: a housing (1); a spindle (2) rotatably mounted on the housing (1) and used for fixedly mounting a cutting blade; a cover (3) mounted on the housing (1) and surrounding the spindle (2); a driving source providing driving force for rotation of the spindle (2); characterized in that it further comprises: a clamping member (5) movably mounted on the housing (1), and the clamping member (5) has a clamping state and a disengaging state; wherein the cover (3) is provided with a clamping hole (10), when the clamping member (5) is in the clamping state, the clamping member (5) is clamped in the clamping hole (10) and prevents the cover (3) from disengaging from the housing (1); when the clamping member (5) is in the disengaging state, the clamping member (5) is disengaged from the clamping hole (10) and the cover (3) can disengage from the housing (1).

2. The portable angle grinder of claim 1, wherein The housing (1) is rotatably connected with a rotating shaft (15), and the clamping member (5) is fixedly mounted on the rotating shaft (15).

3. The portable angle grinder of claim 2, wherein, The rotating shaft (15) is provided with an anti-disengaging member (6) for fastening the clamping member (5), and the anti-disengaging member (6) is detachably mounted on the rotating shaft (15).

4. The portable angle grinder according to any one of claims 1 to 3, characterized in that, An elastic member (14) is connected between the clamping member (5) and the housing (1), and the elastic potential energy of the elastic member (14) when the clamping member (5) is in the disengaging state is greater than the elastic potential energy of the elastic member (14) when the clamping member (5) is in the clamping state.

5. The portable angle grinder of claim 1, wherein, The clamping member (5) is provided with a tab portion (12).

6. The portable angle grinder of claim 1, wherein, The housing (1) is provided with a control panel (7) for human-computer interaction, and the control panel (7) is electrically connected with the driving source.

7. The portable angle grinder of claim 6, wherein The housing (1) is provided with a foot plate (4) for mounting a battery for providing electric energy for the driving source.

8. The portable angle grinder of claim 7, wherein, The control panel (7) is provided with a display screen for displaying the remaining capacity of the battery.

9. The portable angle grinder of claim 6, wherein, The control panel (7) is provided with an adjusting button for adjusting the rotating speed of the spindle (2).

10. The portable angle grinder of claim 1, wherein, The angle grinder further comprises a power transmission mechanism connected between the driving source and the spindle (2), the driving source comprises a motor having a rotor (8), and the rotor (8) is integrally formed with the power transmission mechanism.

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