A handheld lithium-ion angle grinder
By designing a dust suppression adjustment component on a handheld lithium-ion angle grinder, dust control was achieved when cutting hard materials, solving the problems of dust pollution and safety risks, and improving operational flexibility and dust suppression effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 力玛智能科技(江苏)有限公司
- Filing Date
- 2025-03-19
- Publication Date
- 2026-05-26
AI Technical Summary
Existing handheld lithium-ion angle grinders generate a lot of dust when cutting hard materials, causing pollution to the working environment and threatening the health of operators. Furthermore, the method of operating with one hand while simultaneously rinsing with water increases safety risks and makes water control more difficult.
A handheld lithium-ion angle grinder was designed, equipped with a dust suppression adjustment component, including an installation part and an adjustment part. It suppresses dust by spraying water mist through a spray head, which can be adjusted along an arc trajectory. Combined with a small water tank and a water supply system with a delivery hose, it ensures stable water supply and flexible spray angle.
It effectively reduces dust generation during the cutting process, protects the operating environment and user health, reduces the risk of operational errors, and improves operational flexibility and dust suppression efficiency.
Smart Images

Figure CN224274514U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of handheld lithium-ion angle grinders, specifically a handheld lithium-ion angle grinder. Background Technology
[0002] Handheld lithium-ion angle grinders, as a type of portable power tool, are widely used in many fields such as metal processing, woodworking, automobile repair, and home renovation.
[0003] Currently available angle grinders often generate significant dust when cutting hard materials such as tiles and marble. This not only severely pollutes the working environment but also poses a considerable threat to the operator's health. To address this issue, some operators resort to manually sprinkling water to reduce dust, holding the angle grinder in one hand while sprinkling water with the other. However, this method has several drawbacks. First, from a safety perspective, operating the machine with one hand and sprinkling water with the other easily leads to operator distraction, increasing the risk of operational errors. If the angle grinder malfunctions or is operated improperly, it could cause serious accidents. Second, manually sprinkling water makes it difficult to precisely control the water volume and mist distribution. Therefore, a handheld lithium-ion battery-powered angle grinder needs to be designed. Utility Model Content
[0004] The purpose of this invention is to provide a handheld lithium-ion angle grinder to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a handheld lithium-ion angle grinder, comprising an angle grinder handle housing, wherein the interior of the angle grinder handle housing 1 includes a motor, a reducer, and a lithium battery; a mounting post is fixedly installed at the bottom front end of the angle grinder handle housing; a protective shell is fitted over the outer wall of the mounting post; a cutting head is mounted on the bottom of the mounting post via a mounting shaft, and the cutting head is located inside the protective shell; a dust suppression adjustment component is disposed above the angle grinder handle housing and on the outer wall of the mounting post; the dust suppression adjustment component includes: a mounting part, which is disposed on the outer wall and above the angle grinder handle housing; and an adjustment part, which is disposed on the outer wall of the mounting post, with the mounting post disposed below the mounting part.
[0006] Preferably, the mounting portion includes: a mounting slot, which is formed on the outer wall of the angle grinder handle housing, and there are two sets of mounting slots, located on both sides of the angle grinder handle housing; and a mounting bracket, which is fixedly mounted on the top of the angle grinder handle housing.
[0007] Preferably, a support column is fixedly installed inside the mounting slot, and a rotating block is sleeved on the outer wall of the support column.
[0008] Preferably, the outer wall of the rotating block is fixedly equipped with a hand handle, and there are two sets of them. The hand handle is compatible with the mounting groove, and the outer wall of the hand handle is evenly and uniformly fixedly equipped with anti-slip pads.
[0009] Preferably, the mounting bracket has a small water tank inside, and the mounting bracket and the small water tank are compatible. A replenishment pipe is connected to the top of the small water tank. A fixing leather strap is fixedly installed on one side of the outer wall of the mounting bracket, and a fixing frame is fixedly installed on the other side of the outer wall of the mounting bracket. A fixing groove is opened on the top of the fixing frame.
[0010] Preferably, the fixing leather strap and the fixing groove are compatible, the outer wall of the fixing frame is provided with a fixing hole, and the fixing frame moves through the fixing leather strap and extends into the interior of the mounting bracket. A locking post is provided inside the fixing hole for fixing the leather strap and the fixing frame. A small water pump is provided inside the small water tank, and a delivery hose is connected to one side of the small water pump. The delivery hose moves through one side of the outer wall of the small water tank and extends to the outside of the mounting post.
[0011] Preferably, the adjusting part includes: an arc-shaped plate, which is fixedly installed on the outer wall of the mounting column; a movable groove is provided at the top of the arc-shaped plate, and an arc-shaped sliding block is slidably connected inside the movable groove; a through hole is provided at the top of the arc-shaped sliding block, and a conveying hose passes through the inside of the through hole and extends to the bottom of the arc-shaped sliding block; a spray head is provided at the bottom of the arc-shaped sliding block, and the spray head is connected to the other end of the conveying hose.
[0012] Preferably, an arc-shaped connecting plate is fixedly installed on the outer wall of the arc-shaped plate, and a limiting arc-shaped groove is formed on the outer wall of the arc-shaped connecting plate. A C-shaped adjusting plate is slidably connected inside the limiting arc-shaped groove, and one end of the outer wall of the C-shaped adjusting plate is fixedly connected to the outer wall of the arc-shaped sliding block.
[0013] Preferably, the top of the C-shaped adjusting plate is provided with a braking hole, and the top of the arc-shaped connecting plate is provided with adjusting holes at equal intervals, and the braking hole and the adjusting hole are adapted to each other. A fixing post is provided inside the braking hole, and the fixing post extends into the interior of the adjusting hole.
[0014] This utility model provides a handheld lithium-ion battery angle grinder. It has the following advantages:
[0015] (1) This utility model is equipped with an installation slot, a support column and a rotating block, so that the hand handle can be flexibly rotated to an angle suitable for the user's operation. With the anti-slip pad, it ensures a stable and comfortable grip and reduces fatigue caused by long-term operation. At the same time, the small water tank in the mounting bracket can store enough dust suppression water. With the charging tube, the user can easily add dust suppression water at any time. Furthermore, by fixing the leather strap, fixing the frame and the bracket, the small water tank can be firmly installed in the mounting bracket, which not only ensures the stability of use, but also facilitates disassembly and cleaning, thereby improving the flexibility of operation and the ease of maintenance.
[0016] (2) By setting an arc-shaped sliding block and sliding it in the moving groove, and by cooperating the C-shaped adjusting plate and the fixed column in the adjusting hole, the spray head can be freely adjusted along the arc trajectory to meet different cutting angles and dust suppression requirements, effectively reducing the dust generated during the cutting process, protecting the operating environment and the health of users, and achieving the effect of improving operational flexibility and dust suppression efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a rear view of the handheld structure of a handheld lithium-ion angle grinder according to this utility model;
[0019] Figure 3 This is a side view of the water storage structure of a handheld lithium-ion angle grinder according to this utility model;
[0020] Figure 4 This is a side view of the adjustment mechanism of a handheld lithium-ion angle grinder according to the present invention.
[0021] In the diagram: 1 Angle grinder handle housing, 2 Mounting post, 3 Protective shell, 4 Cutting head, 5 Dust suppression adjustment assembly, 51 Mounting part, 511 Mounting slot, 512 Support post, 513 Rotating block, 514 Hand handle, 515 Anti-slip pad, 516 Mounting bracket, 517 Small water tank, 518 Replenishment pipe, 519 Fixing leather strap, 5110 Fixing frame, 5111 Fixing hole, 5112 Locking post, 5113 Conveying hose, 52 Adjustment part, 521 Arc plate, 522 Moving slide, 523 Arc sliding block, 524 Perforation, 525 Spray head, 526 Arc connecting plate, 527 Limiting arc groove, 528 C-type adjustment plate, 529 Braking hole, 5210 Adjustment hole, 5211 Fixing post. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example 1
[0024] A preferred embodiment of the handheld lithium-ion angle grinder provided by this utility model is as follows: Figure 1-4 As shown: A handheld lithium-ion angle grinder includes an angle grinder handle housing 1, which contains a motor, a reducer, and a lithium battery. A mounting post 2 is fixedly installed at the bottom front end of the angle grinder handle housing 1. A protective shell 3 is fitted over the outer wall of the mounting post 2. A cutting head 4 is mounted on the bottom of the mounting post 2 via a mounting shaft and is located inside the protective shell 3. A dust suppression adjustment component 5 is located above the angle grinder handle housing 1 and on the outer wall of the mounting post 2. The dust suppression adjustment component 5 includes: a mounting part 51, which is located on the outer wall and above the angle grinder handle housing 1; and an adjustment part 52, which is located on the outer wall of the mounting post 2, which is located below the mounting part 51.
[0025] The mounting part 51 includes: a mounting slot 511, which is formed on the outer wall of the angle grinder handle housing 1, and there are two sets of the mounting slot 511, located on both sides of the angle grinder handle housing 1; a mounting bracket 516, which is fixedly installed on the top of the angle grinder handle housing 1; and a support column 512 is fixedly installed inside the mounting slot 511, and a rotating block 513 is sleeved on the outer wall of the support column 512.
[0026] The outer wall of the rotating block 513 is fixedly equipped with a hand handle 514, and there are two sets of them. The hand handle 514 is compatible with the mounting slot 511. Anti-slip pads 515 are fixedly installed at equal intervals on the outer wall of the hand handle 514.
[0027] The mounting bracket 516 has a small water tank 517 inside, and the mounting bracket 516 and the small water tank 517 are compatible. The top of the small water tank 517 is connected to a replenishment pipe 518. A fixing leather strap 519 is fixedly installed on one outer wall of the mounting bracket 516, and a fixing frame 5110 is fixedly installed on the other outer wall of the mounting bracket 516. The top of the fixing frame 5110 has a fixing groove.
[0028] The fixing leather strap 519 is compatible with the fixing groove. The outer wall of the fixing frame 5110 is provided with a fixing hole 5111, and the fixing frame 5110 moves through the fixing leather strap 519 and extends into the interior of the mounting bracket 516. The fixing hole 5111 is provided with a locking post 5112 for fixing the leather strap 519 and the fixing frame 5110. The small water tank 517 is provided with a small water pump, and a delivery hose 5113 is connected to one side of the small water pump. The delivery hose 5113 moves through one side of the outer wall of the small water tank 517 and extends to the outside of the mounting post 2.
[0029] Furthermore, this embodiment, by providing an installation slot 511, a support column 512, and a rotating block 513, allows the hand handle 514 to be flexibly rotated to an angle suitable for user operation. Combined with the anti-slip pad 515, it ensures a stable and comfortable grip, reducing fatigue caused by prolonged operation. At the same time, the small water tank 517 inside the mounting bracket 516 can store sufficient dust suppression water. Combined with the charging pipe 518, it allows users to conveniently add dust suppression water at any time. Furthermore, by fixing the leather strap 519, the fixing frame 5110, and the bracket 5112, the small water tank 517 can be securely installed inside the mounting bracket 516, ensuring stability during use and facilitating disassembly and cleaning. Example 2
[0030] Based on Embodiment 1, a preferred embodiment of the handheld lithium-ion angle grinder provided by this utility model is as follows: Figure 1-4 As shown: The adjustment part 52 includes: an arc plate 521, which is fixedly installed on the outer wall of the mounting column 2; a movable slide groove 522 is provided on the top of the arc plate 521, and an arc sliding block 523 is slidably connected inside the movable slide groove 522; a through hole 524 is provided on the top of the arc sliding block 523, and the inside of the through hole 524 passes through the conveying hose 5113 and extends to the bottom of the arc sliding block 523; a spray head 525 is provided at the bottom of the arc sliding block 523, and the spray head 525 is connected to the other end of the conveying hose 5113.
[0031] An arc-shaped connecting plate 526 is fixedly installed on the outer wall of the arc-shaped plate 521. A limiting arc-shaped groove 527 is opened on the outer wall of the arc-shaped connecting plate 526. A C-shaped adjusting plate 528 is slidably connected inside the limiting arc-shaped groove 527, and one end of the outer wall of the C-shaped adjusting plate 528 is fixedly connected to the outer wall of the arc-shaped sliding block 523.
[0032] The top of the C-shaped adjusting plate 528 is provided with a braking hole 529, and the top of the arc-shaped connecting plate 526 is provided with adjusting holes 5210 at equal intervals. The braking hole 529 and the adjusting hole 5210 are compatible. A fixing post 5211 is provided inside the braking hole 529, and the fixing post 5211 extends into the interior of the adjusting hole 5210.
[0033] Furthermore, this embodiment, by providing an arc-shaped sliding block 523 that slides within a movable groove 522, and by cooperating with a C-shaped adjusting plate 528 and a fixed column 5211 within an adjusting hole 5210, allows the spray head 525 to freely adjust its position along an arc-shaped trajectory, meeting different cutting angles and dust suppression requirements, effectively reducing dust generated during the cutting process, and protecting the operating environment and the health of the user.
[0034] In use, the angle grinder handle housing 1 has mounting slots 511 on both sides, with a support column 512 fixed inside. A rotating block 513 is fitted onto the outer wall of the support column 512. Two sets of hand handles 514 are fixed to the outer wall of the rotating block 513, fitting into the mounting slots 511 for easy gripping. Anti-slip pads 515 are fitted onto the outer wall of the hand handles 514 to increase grip stability. Next, a mounting bracket 516 is fixed to the top of the angle grinder handle housing 1, with a small water tank 517 fitted inside. A replenishment pipe 518 connects to the top of the small water tank 517 for easy water filling. A fixing leather strap 519 is fixed to one outer wall of the mounting bracket 516, and a fixing frame 5110 is fixed to the other outer wall. A fixing groove is formed at the top of the fixing frame 5110 to accommodate the fixing leather strap. 519 is adapted, and a fixing hole 5111 is opened on the outer wall of the fixing frame 5110. The fixing leather strap 519 is movably passed through and extends into the mounting bracket 516. A locking post 5112 is set inside the fixing hole 5111 to fix the leather strap 519 to the fixing frame 5110, ensuring the small water tank 517 is stable. Furthermore, a small water pump is set inside the small water tank 517. One side of the small water pump is connected to a delivery hose 5113. The delivery hose 5113 movably passes through one side of the outer wall of the small water tank 517 and extends to the outside of the mounting post 2 to provide water to the spray head 525. Further, the installation... An arc-shaped plate 521 is fixed to the outer wall of column 2. A movable slide groove 522 is opened at the top of the arc-shaped plate 521. An arc-shaped sliding block 523 is slidably connected inside the movable slide groove 522. A through hole 524 is opened at the top of the arc-shaped sliding block 523. A conveying hose 5113 passes through the through hole 524 and extends to the bottom of the arc-shaped sliding block 523. A spray head 525 is set at the bottom of the arc-shaped sliding block 523 and is connected to the other end of the conveying hose 5113 to realize the function of spraying dust suppression. Then, an arc-shaped connecting plate 526 is fixed to the outer wall of the arc-shaped plate 521. A limiting arc is opened on the outer wall of the arc-shaped connecting plate 526. The groove 527 has a C-shaped adjusting plate 528 that is slidably connected inside the limiting arc groove 527. One end of the outer wall of the C-shaped adjusting plate 528 is fixedly connected to the outer wall of the arc-shaped sliding block 523. A braking hole 529 is opened at the top of the C-shaped adjusting plate 528. Adjusting holes 5210 are evenly spaced at the top of the arc-shaped connecting plate 526. The braking hole 529 is adapted to the adjusting hole 5210. A fixing post 5211 is set inside the braking hole 529. The fixing post 5211 extends into the adjusting hole 5210 to fix the position of the C-shaped adjusting plate 528, thereby adjusting the spray direction and angle of the spray head 525.
[0035] First, when the user starts the lithium-ion angle grinder for cutting, the small water pump in the small water tank 517 starts working, delivering water to the spray head 525 through the delivery hose 5113. The spray head 525 sprays water mist onto the cutting area according to the position set by the user, effectively suppressing the dust generated during the cutting process and protecting the user's health. At the same time, by adjusting the position of the C-shaped adjustment plate 528, the user can flexibly change the spray direction and angle of the spray head 525 to adapt to different cutting needs.
[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A handheld lithium-ion angle grinder, comprising an angle grinder handle housing (1), characterized in that: The inside of the angle grinder handle housing (1) includes a motor, a reducer, and a lithium battery. A mounting post (2) is fixedly installed at the bottom front end of the angle grinder handle housing (1). A protective shell (3) is fitted on the outer wall of the mounting post (2). A cutting head (4) is provided at the bottom of the mounting post (2) through a mounting shaft, and the cutting head (4) is located inside the protective shell (3). Dust suppression adjustment component (5), which is disposed above the angle grinder handle housing (1) and on the outer wall of the mounting column (2); The dust suppression regulating component (5) includes: Mounting part (51) is located on the outer wall and top of the angle grinder handle housing (1); Adjustment part (52), the adjustment part (52) is provided on the outer wall of the mounting column (2), and the mounting column (2) is provided below the mounting part (51); The mounting portion (51) includes: The mounting slot (511) is opened on the outer wall of the angle grinder handle housing (1), and there are two sets of them, located on both sides of the angle grinder handle housing (1); Mounting bracket (516), which is fixedly mounted on the top of the angle grinder handle housing (1); A support column (512) is fixedly installed inside the installation slot (511), and a rotating block (513) is sleeved on the outer wall of the support column (512). The mounting bracket (516) is equipped with a water tank (517) inside, and the mounting bracket (516) and the water tank (517) are compatible. A replenishment pipe (518) is connected to the top of the water tank (517). A fixing leather strap (519) is fixedly installed on one side of the outer wall of the mounting bracket (516), and a fixing frame (5110) is fixedly installed on the other side of the outer wall of the mounting bracket (516). A fixing groove is opened on the top of the fixing frame (5110). The fixing leather strap (519) is compatible with the fixing groove. The outer wall of the fixing frame (5110) is provided with a fixing hole (5111), and the fixing frame (5110) moves through the fixing leather strap (519) and extends into the interior of the mounting bracket (516). The fixing hole (5111) is provided with a locking post (5112) for fixing the leather strap (519) and the fixing frame (5110). The water tank (517) is provided with a water pump, and a delivery hose (5113) is connected to one side of the water pump. The delivery hose (5113) moves through one side of the outer wall of the water tank (517) and extends to the outside of the mounting post (2). The adjustment part (52) includes: An arc-shaped plate (521) is fixedly installed on the outer wall of the mounting column (2); The top of the arc-shaped plate (521) is provided with a movable groove (522), and an arc-shaped sliding block (523) is slidably connected inside the movable groove (522). The top of the arc-shaped sliding block (523) is provided with a perforation (524), and the inside of the perforation (524) passes through the conveying hose (5113) and extends to the bottom of the arc-shaped sliding block (523). The bottom of the arc-shaped sliding block (523) is provided with a spray head (525), and the spray head (525) is connected to the other end of the conveying hose (5113).
2. The handheld lithium-ion angle grinder according to claim 1, characterized in that: The outer wall of the rotating block (513) is fixedly equipped with a hand handle (514), and there are two sets of them. The hand handle (514) is compatible with the mounting slot (511). Anti-slip pads (515) are fixedly installed on the outer wall of the hand handle (514) at equal intervals.
3. A handheld lithium-ion angle grinder according to claim 2, characterized in that: An arc-shaped connecting plate (526) is fixedly installed on the outer wall of the arc-shaped plate (521). A limiting arc-shaped groove (527) is opened on the outer wall of the arc-shaped connecting plate (526). A C-shaped adjusting plate (528) is slidably connected inside the limiting arc-shaped groove (527), and one end of the outer wall of the C-shaped adjusting plate (528) is fixedly connected to the outer wall of the arc-shaped sliding block (523).
4. A handheld lithium-ion angle grinder according to claim 3, characterized in that: The top of the C-shaped adjusting plate (528) is provided with a braking hole (529), and the top of the arc-shaped connecting plate (526) is provided with adjusting holes (5210) at equal intervals. The braking hole (529) and the adjusting hole (5210) are compatible. A fixing post (5211) is provided inside the braking hole (529), and the fixing post (5211) extends into the interior of the adjusting hole (5210).