CN219925568U - Angle grinder with self-locking structure - Google Patents
Angle grinder with self-locking structure Download PDFInfo
- Publication number
- CN219925568U CN219925568U CN202321416079.7U CN202321416079U CN219925568U CN 219925568 U CN219925568 U CN 219925568U CN 202321416079 U CN202321416079 U CN 202321416079U CN 219925568 U CN219925568 U CN 219925568U
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- China
- Prior art keywords
- self
- angle grinder
- main body
- locking
- fixedly connected
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- 238000009434 installation Methods 0.000 claims abstract description 23
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims description 19
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 4
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
The utility model discloses an angle grinder with a self-locking structure, which belongs to the technical field of angle grinders and comprises: the angle grinder comprises an angle grinder main body, wherein one end of the angle grinder main body is provided with a self-locking assembly; the angle grinder main body comprises a grab handle main body, a connecting shell is fixedly connected to the bottom of one end of the grab handle main body, an installation rotating shaft is rotatably installed in the connecting shell, a positioning protection disc is fixedly connected to the top end of the installation rotating shaft, and a hexagonal pin is fixedly connected to the top end of the positioning protection disc; the self-locking assembly includes a locking sleeve. According to the angle grinder with the self-locking structure, the electromagnet formed by the electrified coil and the cylindrical iron core enables the locking sleeve to be clamped with the hexagonal pin, and then the installation rotating shaft is locked, so that the installation rotating shaft is kept stable, no worker is required to contact with the grinding wheel in the whole process, the damage of the grinding wheel to the hands of the worker is avoided, the structure is simple, the use is convenient, and the safety is higher.
Description
Technical Field
The utility model belongs to the technical field of angle grinders, and particularly relates to an angle grinder with a self-locking structure.
Background
An angle grinder, also called a grinder or a disc grinder, is a grinding tool for cutting and grinding glass fiber reinforced plastics. The angle grinder is a portable electric tool for cutting and polishing glass fibre reinforced plastic, and is mainly used for cutting, grinding and brushing metal and stone material.
Through retrieval, the patent with the Chinese patent application number of 202220203249.2 discloses a lithium battery direct-drive angle grinder with a self-locking structure, which comprises a handle, wherein one end of the handle is connected with a head shell, and the other end of the handle is provided with a lithium battery pack; the brushless motor comprises a head shell, a brushless stator, a rotor shaft, a cutting tool and a grinding tool, wherein the brushless stator is fixedly arranged in the head shell, the rotor shaft is rotatably arranged, the brushless rotor is fixedly arranged on the rotor shaft, the rotor shaft can be driven to rotate under the action of a rotating magnetic field of the brushless stator, and one end of the rotor shaft extends out of the head shell and is fixedly provided with the cutting tool or the grinding tool; the self-locking structure comprises a self-locking pin, a self-locking cap connected with one end of the self-locking pin, a self-locking spring sleeved on the self-locking pin and a self-locking pressing plate fixedly sleeved on the rotor shaft, a cap groove is formed in the surface of the head shell, a through hole is formed in the bottom surface of the cap groove, one end of the self-locking spring is abutted to the bottom surface of the cap groove, and the other end of the self-locking spring is abutted to the self-locking cap; the self-locking pressing plate is circumferentially provided with at least one self-locking hole, and one end of the self-locking pin extending into the cavity can extend into any one of the self-locking holes.
The above patent suffers from the following disadvantages: the device makes the rotor shaft lock through the auto-lock structure, but in the use, the device is through making the cooperation of auto-lock round pin and auto-lock clamp plate, make the auto-lock clamp plate fixed, there is deflection angle from between lockhole and the auto-lock round pin that the upper surface equidistance of auto-lock clamp plate was seted up, when carrying out the rotor shaft lock, it rotates to need manual rotor shaft, drive the auto-lock clamp plate and rotate, just can make the rotor shaft lock, normally when carrying out the rotor shaft lock, need install or change the abrasive disc, the abrasive disc can rise sharply in the course of the work, partial abrasive disc is because the wearing and tearing that work produced, lead to inside lines (stiffening wire) to expose, directly adopt manual rotation abrasive disc, there is certain potential safety hazard.
Disclosure of Invention
Aiming at one or more of the defects or improvement requirements of the prior art, the utility model provides an angle grinder with a self-locking structure, which solves the problem that the prior art needs to manually rotate a grinding disc to drive a rotor shaft to rotate and then drive a self-locking pressing plate to rotate so as to lock the self-locking pressing plate, and potential safety hazards possibly exist in the process.
To achieve the above object, an angle grinder with a self-locking structure, comprising:
the angle grinder comprises an angle grinder main body, wherein one end of the angle grinder main body is provided with a self-locking assembly;
the angle grinder main body comprises a grab handle main body, a connecting shell is fixedly connected to the bottom of one end of the grab handle main body, an installation rotating shaft is rotatably installed in the connecting shell, a positioning protection disc is fixedly connected to the top end of the installation rotating shaft, and a hexagonal pin is fixedly connected to the top end of the positioning protection disc;
the self-locking assembly comprises a locking sleeve, the top end of the locking sleeve is fixedly connected with a mounting disc, the top end of the mounting disc is fixedly connected with a cylindrical iron core, and an energizing coil is sleeved on the outer wall of the cylindrical iron core.
As a further improvement of the utility model, the top end of the cylindrical iron core is fixedly connected with a limiting disc, and the top end of the limiting disc is fixedly connected with a guide post.
As a further improvement of the utility model, the bottom of the outer wall of the guide post is sleeved with a positioning baffle in a sliding manner, and the top end of the guide post is fixedly provided with a limiting top plate.
As a further improvement of the utility model, the lower surface of the limiting top plate is provided with a supporting spring, and the supporting spring is sleeved on the outer wall of the guide post.
As a further improvement of the utility model, a driven gear is fixedly arranged in the middle of the outer wall of the installation rotating shaft, the driven gear is connected with a driving gear in a meshed manner, and the driving gear is fixedly arranged on an output shaft of the driving motor.
As a further improvement of the utility model, the bottom end of the installation rotating shaft is fixedly provided with the grinding wheel, the outer part of the grinding wheel is sleeved with the protecting shell, and the protecting shell is fixedly connected with the connecting shell.
As a further improvement of the utility model, the top end of the protective shell is fixedly provided with a protective shell, the top of the back surface of the protective shell is fixedly provided with a first control button, and the back surface of the protective shell is fixedly provided with a second control button.
As a further improvement of the utility model, the bottom end of the grab handle main body is fixedly provided with a second control button, the interior of the grab handle main body is fixedly provided with an electric connector, and the back surface of the electric connector is electrically connected with a lithium battery unit.
The above-mentioned improved technical features can be combined with each other as long as they do not collide with each other.
In general, the above technical solutions conceived by the present utility model have the following beneficial effects compared with the prior art:
according to the angle grinder with the self-locking structure, the electromagnet formed by the electrified coil and the cylindrical iron core enables the locking sleeve to be clamped with the hexagonal pin, and then the installation rotating shaft is locked, so that the installation rotating shaft is kept stable, no worker is required to contact with the grinding wheel in the whole process, the damage of the grinding wheel to the hands of the worker is avoided, the structure is simple, the use is convenient, and the safety is higher.
Drawings
Fig. 1 is a schematic perspective view of the overall assembly of the present utility model.
Fig. 2 is a side view of a partially cut-away perspective structure of the overall assembly of the present utility model.
Fig. 3 is a top view of the enlarged structure of fig. 2 a in accordance with the present utility model.
Like reference numerals denote like technical features throughout the drawings, in particular: 1. a grip body; 2. a lithium battery cell; 3. a connection housing; 4. a protective shell; 5. a grinding wheel; 6. a protective box; 7. a protective shell; 8. a first control button; 9. an electrical connector; 10. a second control button; 11. installing a rotating shaft; 12. a driven gear; 13. a drive gear; 14. a driving motor; 15. positioning a protective disc; 16. six-edge pin columns; 17. locking the sleeve; 18. a mounting plate; 19. a power-on coil; 20. a limiting disc; 21. a guide post; 22. positioning a baffle; 23. a limiting top plate; 24. and a support spring.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
An angle grinder with a self-locking structure according to a preferred embodiment of the present utility model, as shown in fig. 1 to 3, includes: the angle grinder comprises an angle grinder body, wherein one end of the angle grinder body is provided with a self-locking assembly.
The angle grinder main body comprises a grab handle main body 1, a connecting clamping shell is integrally formed on the back surface of the grab handle main body 1, a lithium battery unit 2 is fixedly arranged in the connecting clamping shell, and the lithium battery unit 2 supplies power for the whole device.
One end bottom fixedly connected with coupling shell 3 of grab handle main part 1, the bottom fixed mounting of coupling shell 3 has protective housing 4, and the top fixed mounting of protective housing 4 has protective housing 6, and the back fixed mounting of protective housing 6 has protective housing 7.
The through hole has been seted up at the middle part on coupling shell 3 top, and coupling shell 3 top is kept away from the one end fixed mounting who holds handle main part 1 and is had the rotation sleeve, and installation pivot 11 is installed in the rotation sleeve's inside rotation, and rotates telescopic bottom through coupling shell 3 and protecting crust 4.
The middle part fixed mounting of installation pivot 11 outer wall has driven gear 12, and driven gear 12 meshing is connected with driving gear 13, and driving gear 13 fixed mounting is in the output shaft of driving motor 14, and driving motor 14 has the top of coupling shell 3 through motor cabinet fixed mounting.
The top integrated into one piece of installation pivot 11 has location protection dish 15, and the top integrated into one piece of location protection dish 15 has six arris round pin posts 16, and the top of six arris round pin posts 16 is provided with the circular arc chamfer.
The bottom integrated into one piece of installation pivot 11 outer wall has spacing seat, and the bottom fixed mounting of spacing seat has grinding miller 5, and grinding miller 5 passes through nut fixed mounting in the outside of installation pivot 11, and grinding miller 5 sets up in the inside of protecting crust 4.
The bottom fixed mounting of grab handle main part 1 has control button two 10, and the inside fixed mounting of grab handle main part 1 has electric connector 9, electric connector 9 and lithium cell 2 electric connection, and electric connector 9 passes through wire and control button two 10 and driving motor 14 electric connection, and control button two 10 are used for controlling whether driving motor 14 circular telegram, and the size of circular telegram electric current, the user of being convenient for controls grinding wheel 5's rotational speed of operation.
The self-locking assembly comprises a locking sleeve 17, the locking sleeve 17 is arranged at the top end of a six-edge pin 16, an inner cavity of the locking sleeve 17 is arranged as a six-edge groove matched with the six-edge pin 16, an installation disc 18 is integrally formed at the top end of the locking sleeve 17, a cylindrical iron core is welded at the top end of the installation disc 18, and an energizing coil 19 is sleeved on the outer wall of the cylindrical iron core.
The back of the protective shell 7 is fixedly provided with a first control button 8, the power-on coil 19 is electrically connected with the electric connector 9 through the first control button 8, and the first control button 8 is used for controlling whether the power-on coil 19 is electrified or not.
The top of cylinder iron core welds there is spacing dish 20, and the top integrated into one piece of spacing dish 20 has guide post 21, and the bottom of guide post 21 outer wall has cup jointed location baffle 22 through linear bearing slip, location baffle 22 and the inner wall fixed connection of protective housing 6.
The top integrated into one piece of guide post 21 has spacing roof 23, and the lower surface of spacing roof 23 is provided with supporting spring 24, and supporting spring 24 cover is located the outer wall of guide post 21, and supporting spring 24's bottom and the laminating of the upper surface of location baffle 22.
Working principle:
referring to fig. 1 to 3, the present device is assembled as shown in fig. 1;
when the grinding wheel 5 is replaced, installed and disassembled, the control button II 10 is closed firstly, and after the grinding wheel 5 stops rotating completely, the control button I8 is started, and the electric connector 9 enables the electrified coil 19 to be electrified;
the electrified coil 19 is electrified, the cylindrical iron core generates magnetic force, the strong magnetic force attracts the positioning protection disc 15, the installation rotating shaft 11 can only rotate and cannot move up and down, under the action of the magnetic force, the cylindrical iron core drives the locking sleeve 17 to move downwards through the installation disc 18, synchronously drives the guide post 21 and the limiting top plate 23 to move downwards, and extrudes the supporting spring 24;
the locking sleeve 17 is clamped at the top end of the six-edge pin 16 through a six-edge groove, and under the action of arc chamfering at the top end of the six-edge pin 16, the six-edge pin 16 drives the positioning protection disc 15 to rotate, so that the six-edge pin 16 is matched with the six-edge groove and clamped.
At this time, the grinding wheel 5 is replaced, installed and removed, after the grinding wheel 5 is completed, the first control button 8 is turned off, the power-on coil 19 is powered off, and under the action of the supporting spring 24, the locking sleeve 17 is separated from the six-edged pin 16, and the initial state is restored (as shown in fig. 2).
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (8)
1. An angle grinder with a self-locking structure, comprising:
the angle grinder comprises an angle grinder main body, wherein one end of the angle grinder main body is provided with a self-locking assembly;
the angle grinder main body comprises a grab handle main body (1), a connecting shell (3) is fixedly connected to the bottom of one end of the grab handle main body (1), an installation rotating shaft (11) is rotatably installed in the connecting shell (3), a positioning protection disc (15) is fixedly connected to the top end of the installation rotating shaft (11), and a six-edge pin column (16) is fixedly connected to the top end of the positioning protection disc (15);
the self-locking assembly comprises a locking sleeve (17), the top end of the locking sleeve (17) is fixedly connected with a mounting disc (18), the top end of the mounting disc (18) is fixedly connected with a cylindrical iron core, and the outer wall of the cylindrical iron core is sleeved with an energizing coil (19).
2. The angle grinder with a self-locking structure according to claim 1, wherein: the top of cylinder iron core fixedly connected with limiting plate (20), the top fixedly connected with guide post (21) of limiting plate (20).
3. The angle grinder with a self-locking structure according to claim 2, wherein: the bottom of the outer wall of the guide column (21) is sleeved with a positioning baffle plate (22) in a sliding manner, and the top end of the guide column (21) is fixedly provided with a limiting top plate (23).
4. An angle grinder with self-locking structure according to claim 3, wherein: the lower surface of spacing roof (23) is provided with supporting spring (24), supporting spring (24) cover is located the outer wall of guide post (21).
5. The angle grinder with a self-locking structure according to claim 1, wherein: the middle part of the outer wall of the installation rotating shaft (11) is fixedly provided with a driven gear (12), the driven gear (12) is connected with a driving gear (13) in a meshed mode, and the driving gear (13) is fixedly arranged on an output shaft of a driving motor (14).
6. The angle grinder with a self-locking structure according to claim 1, wherein: the bottom fixed mounting of installation pivot (11) has grinding miller (5), the outside cover of grinding miller (5) is equipped with protecting crust (4), protecting crust (4) and coupling shell (3) fixed connection.
7. The angle grinder with self-locking structure according to claim 6, wherein: the top fixed mounting of protecting crust (4) has protective housing (6), the top fixed mounting at the back of protective housing (6) has protective housing (7), the back fixed mounting of protective housing (7) has control button one (8).
8. The angle grinder with a self-locking structure according to claim 1, wherein: the bottom end of the grab handle main body (1) is fixedly provided with a second control button (10), the interior of the grab handle main body (1) is fixedly provided with an electric connector (9), and the back surface of the electric connector (9) is electrically connected with a lithium battery unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321416079.7U CN219925568U (en) | 2023-06-06 | 2023-06-06 | Angle grinder with self-locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321416079.7U CN219925568U (en) | 2023-06-06 | 2023-06-06 | Angle grinder with self-locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219925568U true CN219925568U (en) | 2023-10-31 |
Family
ID=88500588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321416079.7U Active CN219925568U (en) | 2023-06-06 | 2023-06-06 | Angle grinder with self-locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219925568U (en) |
-
2023
- 2023-06-06 CN CN202321416079.7U patent/CN219925568U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |