Lithium battery angle grinder with convenient battery replacement

Abstract

This utility model provides a convenient lithium-ion angle grinder for battery swapping, relating to the field of angle grinder technology. It includes a main body with two handles, each hinged with a stop bracket that abuts against each other. A motor is mounted at one end of the main body, with a grinding disc fixedly connected to the motor's output end. A battery compartment for housing the lithium battery is located inside the main body at one end, with a cover snapped onto one end of the battery compartment. When swapping batteries at height, the stop brackets are pushed towards the side post of the ladder, causing them to rotate and pass through the post. They then return to their original position under the elastic force of a torsion spring, with the two stop brackets abutting against each other, thus hanging the angle grinder on the ladder. This achieves a hanging function for battery swapping during height operations, eliminating the need for workers to hold the grinder with one hand, allowing for convenient and safer battery swapping.

Description

Technical Field

[0001] This utility model relates to the field of angle grinder technology, and more specifically, to a lithium-ion angle grinder that is easy to replace with batteries. Background Technology

[0002] Angle grinders are common power tools widely used in construction, decoration, metal processing and other fields for grinding, cutting and other operations on materials such as metal and stone. With the development of battery technology, lithium-ion angle grinders have become increasingly widely used due to their advantages such as portability and no power cord restrictions.

[0003] In the prior art, patent CN222371216U discloses a brushless lithium-ion angle grinder, including a brushless lithium-ion angle grinder control base. A protective adjustment mechanism is fixedly provided on one side of the control base, and a protective positioning mechanism is fixedly provided at the bottom of the protective adjustment mechanism. The protective adjustment mechanism includes a positioning frame, and a positioning ring is fixedly provided on one side of the positioning frame. This utility model drives the positioning base to rotate along the positioning ring through the positioning tooth ring, so that the positioning base drives the protective cover fixed at the top to rotate, so that the protective cover rotates along the positioning groove opened on the outer wall of the mounting base, so that the protective cover and the protective positioning mechanism at the bottom rotate, which facilitates grinding at different angles of the grinding wheel. This makes it easy for the brushless lithium-ion angle grinder to perform grinding work in different working environments, and it also makes it easy for the brushless lithium-ion angle grinder to be stably protected at different angles through the protective positioning mechanism, increasing the practicality of the brushless lithium-ion angle grinder.

[0004] In actual operations, workers often need to perform tasks at heights, such as grinding workpieces on escalators. However, when changing the battery of an existing lithium-ion angle grinder, the worker needs to hold the grinder with one hand and perform the battery change with the other, making it impossible for the worker to hold the escalator. This results in a high safety risk for changing batteries at heights, and it is also difficult to ensure the stability of the angle grinder during the operation, which can easily lead to accidental falls. This could not only damage the equipment but also pose a safety threat to people or objects below. Utility Model Content

[0005] The main objective of this invention is to provide a lithium-ion angle grinder that is easy to replace with batteries, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A lithium-ion angle grinder with easy battery swapping includes a main body with two handles. Each handle is hinged with a stop, and the two stops abut against each other. A motor is installed at one end of the main body, and a grinding disc is fixedly connected to the output end of the motor. A battery compartment for installing a lithium battery is installed inside one end of the main body, and a cover is snapped onto one end of the battery compartment.

[0008] Preferably, a mounting shell is fixedly connected to one end of the main body, the motor is fixedly installed inside the mounting shell, and a fixing bushing is fixedly installed at the bottom of the mounting shell.

[0009] Preferably, the output end of the motor and the mounting shaft of the grinding disc are both rotatably disposed within the fixed bushing, and a protective cover is provided on the outside of the grinding disc, which is fixedly mounted on the fixed bushing.

[0010] Preferably, a first spring is installed inside the battery compartment, a slot is provided on the inner wall of one end of the battery compartment, and a movable block is provided through the cover.

[0011] Preferably, one end of the movable block is provided with a locking block, which engages with the corresponding slot.

[0012] Preferably, a limiting rod is fixedly installed inside the cover, a second spring is sleeved on the limiting rod, the movable block is slidably sleeved on the limiting rod, and the two ends of the second spring are fixedly connected to the inner wall of the cover and the movable block, respectively.

[0013] Preferably, the handle is provided with several anti-slip rings, and a hinge seat is fixedly connected to the upper end of the handle.

[0014] Preferably, the stop is hinged within the hinge seat, and both sides of the stop are connected to the hinge seat via torsion springs.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) When workers are working at height and need to change the power, they push the guard towards the side column of the step. The guard rotates and passes into the side column of the step. Then, under the elastic force of the torsion spring, it resets and the two guards abut against each other, thus hanging the angle grinder on the ladder. This realizes the suspension function of the angle grinder when changing the power at height. Workers do not need to hold the angle grinder with one hand. The power changing operation can be carried out with one hand, making the power changing operation more convenient and safer.

[0017] (2) The handle can also be held by the staff, making it easier to operate the angle grinder in different scenarios, making the use of the angle grinder more flexible. The anti-slip ring increases the stability when holding and hanging, reducing the risk of the angle grinder accidentally slipping. Attached Figure Description

[0018] Figure 1This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the structure of this utility model;

[0020] Figure 3 This utility model Figure 2 3D schematic diagram of the cross-sectional structure of the middle AA section;

[0021] Figure 4 This utility model Figure 3 Enlarged view of the structure at point B in the middle;

[0022] Figure 5 This is a three-dimensional schematic diagram of the handle portion structure in this utility model;

[0023] Figure 6 This is an exploded view of the structure of the middle support frame part of this utility model.

[0024] In the diagram: 1. Main body; 10. First spring; 101. Battery compartment; 102. Slot; 2. Handle; 201. Anti-slip ring; 21. Stop; 22. Hinge seat; 23. Torsion spring; 3. Cover; 301. Limiting rod; 302. Second spring; 4. Motor; 5. Movable block; 501. Locking block; 6. Mounting shell; 7. Grinding disc; 8. Protective cover; 9. Fixed bushing. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0026] like Figures 1-3 As shown in the figure, this utility model embodiment proposes a lithium-ion angle grinder that is easy to replace with batteries. It includes a main body 1, on which two handles 2 are provided. Each handle 2 is hinged with a stop 21, and the two stop 21 abut against each other. A motor 4 is provided at one end of the main body 1. A grinding disc 7 is fixedly connected to the output end of the motor 4. A battery compartment 101 for installing lithium batteries is provided inside one end of the main body 1. A cover 3 is snapped onto one end of the battery compartment 101.

[0027] like Figures 1-3 As shown, a mounting shell 6 is fixedly connected to one end of the main body 1, the motor 4 is fixedly installed inside the mounting shell 6, a fixed bushing 9 is fixedly installed at the bottom of the mounting shell 6, the output end of the motor 4 and the mounting shaft of the grinding disc 7 are rotatably set inside the fixed bushing 9, a protective cover 8 is provided on the outside of the grinding disc 7, and the protective cover 8 is fixedly installed on the fixed bushing 9.

[0028] The fixed bushing 9 provides rotational support for the output shaft of the motor 4 and the mounting shaft of the grinding disc 7, ensuring that the power output by the motor 4 can be stably transmitted to the grinding disc 7, driving the grinding disc 7 to perform stable grinding operations. The protective cover 8 can block the flying debris generated during the grinding process and protect the workers from injury.

[0029] like Figure 3 , Figure 4 As shown, a first spring 10 is installed inside the battery compartment 101. A slot 102 is provided on the inner wall of one end of the battery compartment 101. A movable block 5 is provided through the cover 3. A locking block 501 is provided at one end of the movable block 5. The locking block 501 is engaged with the slot 102. A limit rod 301 is fixedly installed inside the cover 3. A second spring 302 is sleeved on the limit rod 301. The movable block 5 is slidably sleeved on the limit rod 301. The two ends of the second spring 302 are fixedly connected to the inner wall of the cover 3 and the movable block 5, respectively.

[0030] The battery compartment 101 is used to install lithium batteries. The first spring 10 can elastically tighten the lithium battery to ensure that the lithium battery is installed firmly. The cover 3 is connected to the slot 102 by the locking block 501 on the movable block 5. When the lithium battery needs to be replaced, push the movable block 5 to make the locking block 501 disengage from the slot 102, and the cover 3 can be opened to take out the lithium battery for replacement. When the cover 3 is closed, the movable block 5 is released. Under the elastic restoring force of the second spring 302, the locking block 501 is re-locked into the slot 102 to fix the cover 3.

[0031] like Figure 1 , Figure 5 , Figure 6 As shown, the handle 2 is provided with several anti-slip rings 201, and the upper end of the handle 2 is fixedly connected to a hinge seat 22. The stop 21 is hinged in the hinge seat 22, and both sides of the stop 21 are connected to the hinge seat 22 through torsion springs 23.

[0032] The hinge seat 22 provides hinge support for the stop 21, which can rotate around the hinge axis. When workers are working at height, such as on an escalator, and need to change the power supply, they push the stop 21 towards the side column of the step. The stop 21 rotates and passes through the side column of the step, and then returns to its original position under the elastic force of the torsion spring 23. The two stops 21 abut against each other, thereby hanging the angle grinder on the escalator. This realizes the suspension function of the angle grinder when changing the power supply at height. Workers do not need to hold the angle grinder with one hand; they can perform the power change operation with one hand, making the power change operation more convenient and safer.

[0033] The handle 2 can also be held by the staff, making it easier to operate the angle grinder in different scenarios and making the use of the angle grinder more flexible. The anti-slip ring 201 increases the stability when holding and hanging, reducing the risk of the angle grinder accidentally slipping.

[0034] The working principle of this easy-to-swap lithium battery angle grinder:

[0035] During operation, the motor 4 drives the grinding disc 7 to perform grinding operations. The protective cover 8 prevents debris from flying. When the angle grinder needs to be replaced while working at height, the stop 21 is pushed towards the side column of the ladder. The stop 21 rotates and passes into the side column of the ladder. Then, it is reset under the elastic force of the torsion spring 23. The two stop 21s abut against each other, so that the angle grinder is hung on the ladder. The operator does not need to hold the angle grinder with one hand. Then, by pressing the movable block 5, the locking block 501 is disengaged from the slot 102, the cover 3 is opened, and the lithium battery is replaced. This realizes one-handed battery replacement operation, which improves the convenience and safety of battery replacement operation.

[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A lithium electric angle grinder with convenient battery replacement, comprising a main body (1), characterized in that: The main body (1) is provided with two handles (2), and each handle (2) is hinged with a stop (21). The two stop (21) abut against each other. One end of the main body (1) is provided with a motor (4), and the output end of the motor (4) is fixedly connected with a grinding plate (7). One end of the main body (1) is provided with a battery compartment (101) for installing lithium batteries, and one end of the battery compartment (101) is snapped with a cover (3).

2. The lithium electric angle grinder with convenient battery replacement according to claim 1, characterized in that: One end of the main body (1) is fixedly connected to a mounting shell (6), the motor (4) is fixedly installed inside the mounting shell (6), and a fixed bushing (9) is fixedly installed at the bottom of the mounting shell (6).

3. The lithium electric angle grinder with convenient battery replacement according to claim 2, characterized in that: The output end of the motor (4) and the mounting shaft of the grinding disc (7) are rotatably mounted in the fixed bushing (9). A protective cover (8) is provided on the outside of the grinding disc (7), and the protective cover (8) is fixedly mounted on the fixed bushing (9).

4. The lithium electric angle grinder with convenient battery replacement according to claim 1, characterized in that: A first spring (10) is installed inside the battery compartment (101), a slot (102) is provided on the inner wall of one end of the battery compartment (101), and a movable block (5) is provided through the cover (3).

5. The lithium electric angle grinder with convenient battery replacement according to claim 4, characterized in that: One end of the movable block (5) is provided with a locking block (501), which is engaged with the locking slot (102).

6. The lithium electric angle grinder with convenient battery replacement according to claim 4, characterized in that: A limiting rod (301) is fixedly installed inside the cover (3). A second spring (302) is sleeved on the limiting rod (301). The movable block (5) is slidably sleeved on the limiting rod (301). The two ends of the second spring (302) are fixedly connected to the inner wall of the cover (3) and the movable block (5) respectively.

7. The lithium electric angle grinder with convenient battery replacement according to claim 1, characterized in that: The handle (2) is provided with several anti-slip rings (201), and the upper end of the handle (2) is fixedly connected with a hinge seat (22).

8. The lithium electric angle grinder with convenient battery replacement according to claim 7, characterized in that: The stop (21) is hinged in the hinge seat (22), and both sides of the stop (21) are connected to the hinge seat (22) by torsion springs (23).

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