An angle grinder

Abstract

The utility model discloses an angle grinder, including the casing and drive mechanism, be equipped with the accommodation cavity in the casing, and the accommodation cavity is divided into the lower chamber and the upper chamber that intercommunication through the baffle, and drive mechanism includes the main part of setting in the lower chamber to the main body and the base that extend to the upper chamber from the main part end portion, and the main part has the first end portion and the second end portion in the first direction opposition, the first abutment of supporting in the first end portion and the second abutment of supporting in the second end portion are equipped with in the lower chamber inner wall surface. The utility model discloses two abutments on the casing inner cavity wall are arranged to support the both ends of the main body of the drive machine lower part, thereby reduce the vibration in the working process of drive mechanism, improve the stability and reliability when the angle grinder works.

Description

Technical Field

[0001] This utility model relates to the field of angle grinder technology, and in particular to an angle grinder. Background Technology

[0002] An angle grinder typically includes a housing, a grinding head mounted at the front of the housing, and a drive mechanism mounted inside the housing to drive the grinding head.

[0003] In related technologies, one end of the drive mechanism is connected to the housing, while the other end extends directly into the inner cavity of the housing without additional support. Therefore, during operation, the rear of the drive mechanism experiences significant vibration, affecting the angle grinder's performance. Utility Model Content

[0004] The main objective of this invention is to provide an angle grinder that addresses the aforementioned technical problems.

[0005] The technical problem solved by this utility model is achieved by the following technical solution:

[0006] An angle grinder, characterized in that it includes a housing and a drive mechanism;

[0007] The housing has a receiving cavity, which is divided into a lower chamber and an upper chamber that are interconnected by a partition.

[0008] The drive mechanism includes a main body disposed in the lower chamber and a base extending upward from one end of the main body into the upper chamber. The main body has a first end and a second end opposite to each other in a first direction.

[0009] The lower cavity inner wall is provided with a first abutting part supported at the first end and a second abutting part supported at the second end.

[0010] In some embodiments, the first abutting portion and / or the second abutting portion are annular protrusions.

[0011] In some embodiments, the housing further includes:

[0012] A support frame, disposed within the lower cavity, is used to support the bottom end of the drive mechanism.

[0013] In some embodiments, the support frame is provided with a groove that matches the bottom end of the drive mechanism, and the bottom surface of the groove is provided with a wire through hole.

[0014] In some embodiments, a locking mechanism for locking the switch of the angle grinder is further included, the locking mechanism comprising:

[0015] A locking element is disposed on the housing and is movable relative to the housing in a second direction;

[0016] An elastic element connects the housing and the locking element, and is used to drive the locking element to reciprocate so that the locking element switches between a locked state and an unlocked state;

[0017] When the locking member is in the locked state, the locking member is connected to the switch to restrict the rotation of the switch;

[0018] When the locking element is in the unlocked state, the locking element separates from the switch, allowing the switch to rotate freely.

[0019] In some embodiments, the locking element includes:

[0020] A locking pin is movably connected to the side of the housing, and one end extends into the housing to engage with the lock hole of the switch.

[0021] The control unit is located at the other end of the locking pin opposite to the switch.

[0022] In some embodiments, the locking element further includes:

[0023] A limiting part is provided on the locking pin to limit the displacement of the locking pin.

[0024] In some embodiments, the locking element further includes:

[0025] The handle is provided on the control unit.

[0026] The beneficial effects of this utility model are:

[0027] The angle grinder of this invention has two abutment parts on the inner wall of the housing to support the two ends of the main body of the lower part of the drive mechanism, thereby reducing the vibration of the drive mechanism during operation and improving the stability and reliability of the angle grinder during operation. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of the angle grinder according to an embodiment of the present invention;

[0030] Figure 2This is a cross-sectional view of an angle grinder according to an embodiment of the present invention;

[0031] Figure 3 This is a three-dimensional structural diagram of the drive mechanism in the angle grinder according to an embodiment of the present utility model;

[0032] Figure 4 for Figure 2 Enlarged view of part A in the middle;

[0033] Figure 5 for Figure 2 Enlarged view of part B in the middle;

[0034] Figure 6 This is a cross-sectional view of the angle grinder according to an embodiment of the present invention.

[0035] The above figure labels:

[0036] 10-Housing; 11-Block; 12-Lower chamber; 121-First abutment part; 122-Second abutment part; 13-Upper chamber; 14-Support frame;

[0037] 20-Drive mechanism; 21-Main body; 211-First end; 212-Second end; 22-Base; 23-Bearing;

[0038] 30 - Switch; 31 - Pressing part; 32 - Support part;

[0039] 40-Locking mechanism; 41-Locking component; 411-Locking pin; 412-Control unit; 413-Limiting unit; 42-Elastic component. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0041] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0043] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0044] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0045] An angle grinder is a power tool used for cutting and grinding, typically comprising a housing, a grinding head mounted at the front of the housing, and a drive mechanism mounted inside the housing to operate the grinding head. In related technologies, one end of the drive mechanism is connected to the housing, while the other end extends directly into the inner cavity of the housing without additional support. Therefore, during operation, significant vibration occurs at the rear of the drive mechanism, affecting the performance of the angle grinder. In view of this, this application provides an angle grinder that provides two abutment portions on the inner wall of the housing to support both ends of the lower part of the drive mechanism, thereby reducing vibration during operation and improving the stability and reliability of the angle grinder.

[0046] Please see Figures 1 to 6 As shown, an angle grinder includes a housing 10 and a drive mechanism 20.

[0047] The housing 10 has a receiving cavity and a partition 11, which divides the receiving cavity into a lower chamber 12 and an upper chamber 13 that are interconnected.

[0048] The drive mechanism 20 is installed in the receiving cavity of the housing 10 and is used to drive the angle grinding head. Specifically, the drive mechanism 20 can be a brushless motor, which may include a main body 21 disposed in the lower chamber 12, and a base 22 extending upward from the end of the main body 21 into the upper chamber 13. The base 22 is rotatably connected to the housing 10. The main body 21 has a first end 211 and a second end 212 opposite to each other in a first direction. It should be noted that the first direction in this embodiment of the present invention can be understood as the axial direction of the drive mechanism 20. That is, the upper end of the main body 21 near the base 22 is the first end 211, and the lower end opposite to the upper end is the second end 212.

[0049] The inner wall of the lower chamber 12 is provided with a first abutment portion 121 and a second abutment portion 122. The first abutment portion 121 and the second abutment portion 122 are spaced apart in a first direction. The first abutment portion 121 protrudes toward the axis of the housing 10 and is used to support the first end 211. The second abutment portion 122 protrudes toward the axis of the housing 10 and is used to support the second end 212.

[0050] By providing two abutment parts 121 inside the housing 10, the main body 21 at the bottom of the drive mechanism 20 can be supported, thereby reducing the vibration of the drive mechanism 20 during operation and improving the stability and reliability of the angle grinder during operation.

[0051] The specific shapes of the first abutting part 121 and the second abutting part 122 are not limited here. For example, they can be closed annular protrusions or single protrusions. Their shapes can be circular, square, etc. The shapes of the first abutting part 121 and the second abutting part 122 can be the same or different. For example, the first abutting part 121 is a closed circular protrusion ring, and the second abutting part 122 is an arc-shaped protrusion block, or the first abutting part 121 is an arc-shaped protrusion block, and the second abutting part 122 is a closed circular protrusion ring, or both the first abutting part 121 and the second abutting part 122 are closed circular protrusion rings, or both the first abutting part 121 and the second abutting part 122 are arc-shaped protrusion blocks.

[0052] For some embodiments of this application, please refer to Figure 2 The housing 10 also includes a support frame 14, which is disposed in the lower chamber 12 and located below the second abutment portion 122, for supporting the bottom end of the drive mechanism 20. Specifically, the bottom end of the drive mechanism 20 is provided with a bearing 23, and the support frame 14 is provided with a groove adapted to the bearing 23 at the bottom end of the drive mechanism 20, and the bottom surface of the groove is provided with a wire through hole.

[0053] Furthermore, such as Figure 6As shown, the angle grinder may further include a locking mechanism 40 for locking the switch 30 of the angle grinder. The switch 30 includes a pressing part 31 and a supporting part 32. The pressing part 31 is connected to the outer side of the housing 10 via a rotating shaft and can rotate relative to the housing 10 to control the working state of the drive mechanism 20. The supporting part 32 is connected to the inner side of the pressing part 31 and extends into the interior of the housing 10. A locking hole is provided on the supporting part 32. The locking mechanism 40 may include a locking member 41 and an elastic member 42. The locking member 41 is disposed on the housing 10, and one end has a locking part adapted to the locking hole. The locking member 41 can move relative to the housing 10 in a second direction, so that the locking part is inserted into or separated from the locking hole. It should be noted that the second direction in this embodiment of the present invention can be understood as the radial direction of the housing 10. The elastic element 42 connects the housing 10 and the locking element 41. The elastic element 42 can be a spring, used to drive the locking element 41 to reciprocate, so that the locking element 41 switches between a locked state and an unlocked state. When the locking element 41 is in the locked state, the locking part at one end of the locking element 41 is inserted into the lock hole on the switch 30, and the switch 30 is restricted from rotating. When the locking element 41 is in the unlocked state, the locking part at one end of the locking element 41 disengages from the lock hole on the switch 30, and the switch 30 can rotate freely.

[0054] Specifically, when it is necessary to control the operation of the drive mechanism 20, the locking member 41 is pulled away from the switch 30 by external force until the locking part is completely disengaged from the keyhole. The elastic member 42 is compressed, and the switch 30 is in the unlocked state. At this time, the switch 30 can be rotated to the open state to control the opening of the drive mechanism 20. When it is necessary to control the drive mechanism 20 to stop working, the switch 30 is rotated to the closed state. At this time, the keyhole and the locking part are aligned. Under the action of its own elastic force, the elastic member 42 pushes the locking member 41 to move towards the switch 30, so that the locking part is inserted into the keyhole, and the switch 30 is restricted from rotation. By setting the locking mechanism 40, safety accidents caused by accidental activation of the switch 30 can be avoided, improving the safety of use.

[0055] In some embodiments of this application, the locking member 41 may include a locking pin 411 and a control part 412.

[0056] The locking pin 411 is movably connected to the side of the housing 10, and one end extends into the housing 10 to engage with the locking hole of the switch 30. The control unit 412 is located at the other end of the locking pin 411 opposite to the switch 30.

[0057] Furthermore, to facilitate control of the movement and displacement of the locking pin 411, the locking member 41 may also include a limiting part 413, which is disposed on the locking pin 411 and close to the front end of the switch 30. The limiting part 413 may be a ring disposed on the outer periphery of the locking pin 411. Specifically, when it is necessary to unlock the switch 30, the locking member 41 is controlled to move away from the switch 30 until the limiting part 413 abuts against the inner wall of the housing 10. At this point, the locking part is completely disengaged from the lock hole, and the switch 30 can rotate relative to the housing 10.

[0058] Furthermore, the locking member 41 may also include a handle portion provided on the control unit 412. The handle portion may be a pull ring or a pull hook. By providing a handle portion, it is convenient for the user to operate.

[0059] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0060] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. An angle grinder, characterized in that, Includes housing (10) and drive mechanism (20); The housing (10) has a receiving cavity, which is divided into a lower chamber (12) and an upper chamber (13) that are interconnected by a partition (11). The drive mechanism (20) includes a main body (21) disposed in the lower chamber (12) and a base (22) extending upward from the end of the main body (21) into the upper chamber (13). The main body (21) has a first end (211) and a second end (212) opposite to each other in a first direction. The inner wall of the lower chamber (12) is provided with a first abutting part (121) supported on the first end (211) and a second abutting part (122) supported on the second end (212).

2. The angle grinder according to claim 1, characterized in that, The first abutting part (121) and / or the second abutting part (122) are annular protrusions.

3. The angle grinder according to claim 1 or 2, characterized in that, The housing (10) also includes: A support frame (14) is disposed in the lower chamber (12) to support the bottom end of the drive mechanism (20).

4. The angle grinder according to claim 3, characterized in that, The support frame (14) is provided with a groove that is adapted to the bottom end of the drive mechanism (20), and the bottom surface of the groove is provided with a wire hole.

5. The angle grinder according to claim 1, characterized in that, It also includes a locking mechanism (40) for locking the switch (30) of the angle grinder, the locking mechanism (40) comprising: A locking element (41) is disposed on the housing (10) and is movable relative to the housing (10) in a second direction; An elastic element (42) connects the housing (10) and the locking element (41) to drive the locking element (41) to reciprocate so that the locking element (41) switches between a locked state and an unlocked state; When the locking member (41) is in the locked state, the locking member (41) is connected to the switch (30) to restrict the rotation of the switch (30); When the locking member (41) is in the unlocked state, the locking member (41) separates from the switch (30) to allow the switch (30) to rotate freely.

6. The angle grinder according to claim 5, characterized in that, The locking element (41) includes: Locking pin (411) is movably connected to the side of the housing (10), and one end extends into the interior of the housing (10) to cooperate with the locking hole of the switch (30); The control unit (412) is located at the other end of the locking pin (411) opposite to the switch (30).

7. The angle grinder according to claim 6, characterized in that, The locking element (41) further includes: A limiting part (413) is provided on the locking pin (411) to limit the displacement of the locking pin (411).

8. The angle grinder according to claim 6 or 7, characterized in that, The locking element (41) further includes: The handle is provided on the control unit (412).

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