Multi-angle adjustable polishing device for decoration engineering

Abstract

The utility model discloses a kind of multi-angle adjustable polishing devices for decoration engineering, including handle bar, angle adjusting assembly is provided in the inside of handle bar, and angle adjusting assembly side is provided with polishing assembly;Angle adjusting assembly includes positioning ring, positioning hole, arc side plate, limit block, limit column, spring and brake block;Positioning ring is movably installed in the inside of handle bar, and positioning hole is passed through and is provided on positioning ring, the side of the circumference of positioning ring movably connected with multiple arc side plates, the side of arc side plate close to positioning ring is fixedly connected with limit block, the side of limit block is fixedly connected with limit column, spring is sleeved on limit column, the end portion of arc side plate away from positioning ring is fixedly connected with brake block, and brake block is composed of damping material;Wherein, when fixed polishing angle, brake block and polishing assembly abut each other.This utility model solves the technical problem that traditional polishing device angle adjustment is limited.

Description

Technical Field

[0001] This utility model belongs to the field of decoration engineering technology, specifically relating to a grinding device for decoration engineering that can be adjusted at multiple angles. Background Technology

[0002] In the field of interior decoration, sanding of walls and irregularly shaped structures requires a high degree of tool angle adjustment capability and operational stability. Traditional handheld sanders mostly adopt a fixed angle design or a simple mechanical locking structure, which has the following shortcomings:

[0003] (1) The angle adjustment range is limited, making it difficult to adapt to walls or curved structures with different tilt angles. The grip posture needs to be adjusted frequently during operation, resulting in low construction efficiency.

[0004] (2) Angle locking relies on a single bolt or snap-fit ​​structure, which is prone to loosening under high-speed grinding vibration, affecting grinding accuracy;

[0005] (3) Sandpaper is often fixed by bonding or simple clamping. When rotating at high speed, the sandpaper is prone to shifting, slipping or warping at the edges. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-angle adjustable grinding device for decoration projects, thereby solving the technical problem of limited angle adjustment in traditional grinding devices.

[0007] This utility model achieves the above-mentioned objective through the following technical solution: a multi-angle adjustable polishing device for decoration projects, including a handle, an angle adjustment component is provided inside the handle, and a polishing component is provided on one side of the angle adjustment component;

[0008] The angle adjustment assembly includes a positioning ring, a positioning hole, an arc-shaped side plate, a limiting block, a limiting post, a spring, and a brake block. The positioning ring is movably installed inside the grip bar. A positioning hole is provided through the positioning ring. Multiple arc-shaped side plates are movably connected to the periphery of the positioning ring. A limiting block is fixedly connected to the side of the arc-shaped side plate near the positioning ring. A limiting post is fixedly connected to one side of the limiting block. A spring is sleeved on the limiting post. A brake block is fixedly connected to the end of the arc-shaped side plate away from the positioning ring. The brake block is made of damping material.

[0009] When the grinding angle is fixed, the braking block abuts against the grinding assembly.

[0010] In a preferred embodiment of this utility model, the angle adjustment assembly further includes a knob, a lead screw, a bearing ring, and an internally threaded tube. The knob is movably installed on the side of the handle away from the grinding assembly. A lead screw is fixedly connected to one side of the knob. The lead screw is movably sleeved inside the bearing ring. The bearing ring is fixedly installed inside the handle. An internally threaded tube is threaded onto one side of the lead screw. The internally threaded tube is fixedly connected to one side of the positioning ring.

[0011] In a preferred embodiment of this utility model, the grinding assembly includes a cross-shaped locking block, a spherical locking block, a motor mounting plate, and a ball groove;

[0012] The cross-shaped locking block is fixedly installed inside the grip bar. A spherical locking block is fixedly connected to one side of the cross-shaped locking block. A ball groove is provided on the motor mounting plate. The spherical locking block is movably fitted onto the motor mounting plate through the ball groove. The shape of the ball groove is adapted to the shape of the spherical locking block.

[0013] In a preferred embodiment of the present invention, the grinding assembly further includes a servo motor, a top block, a first retaining ring, retaining holes, a second retaining ring, and bolts. The servo motor is fixedly installed on the side of the motor mounting plate away from the cross retaining block. The top block is fixedly installed on the output end of the servo motor. The first retaining ring is fixedly connected to the outer side of the top block. Several retaining holes are opened through the first retaining ring.

[0014] In use, the second retaining ring secures the sandpaper to the top block by means of a bolt and a retaining hole.

[0015] In a preferred embodiment of this utility model, the end of the bolt is provided with a pointed tip, and the second retaining ring is provided with radial protrusions.

[0016] In a preferred embodiment of the present invention, the limiting post is movably sleeved inside the positioning hole and elastically engaged with the positioning hole;

[0017] The arc-shaped side plate is movably connected in the gap between the cross-shaped locking block and the grip bar.

[0018] In a preferred embodiment of this utility model, the contact surface between the brake block and the motor mounting plate is provided with anti-slip texture.

[0019] The beneficial effects of this utility model include:

[0020] (1) Through the combination structure of screw drive and damping brake, the knob drives the screw to push the positioning ring to move axially, and the compressed spring makes multiple brake blocks synchronously abut against the motor mounting plate to form multi-node friction braking, realizing multi-angle adjustment and high rigidity locking of the grinding component, adapting to walls or irregular structures with different inclinations, and the angle locking is stable during high-speed grinding, with no risk of loosening.

[0021] (2) The clamping structure of the first retaining ring, the second retaining ring and the tip bolt is adopted. The bolt pierces the sandpaper and cooperates with the retaining hole to limit the position. Combined with the radial protrusion of the second retaining ring, the sandpaper can be quickly replaced and evenly clamped. This effectively prevents the sandpaper from shifting or the edge from warping during high-speed rotation, and improves the flatness of the sanding surface and the work efficiency.

[0022] (3) The brake block is made of Shore 70A damping rubber with anti-slip texture design. It absorbs the vibration energy transmitted by the servo motor while locking the angle, reducing grip fatigue. The gap between the ball block and the ball groove allows the grinding component to adaptively adjust the angle, further buffering dynamic impact and ensuring grinding accuracy and operating feel. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of the present invention;

[0025] Figure 3 This is a partial structural diagram of the angle adjustment component in this utility model;

[0026] Figure 4 This is a schematic diagram of a partial structure of the angle adjustment component in this utility model.

[0027] Figure 5 This is a partial structural diagram of the grinding component in this utility model;

[0028] Figure 6 This is a schematic diagram of a partial structure of the grinding component in this utility model.

[0029] In the diagram: 1. Grip bar; 2. Angle adjustment assembly; 201. Knob; 202. Lead screw; 203. Bearing ring; 204. Internal threaded tube; 205. Positioning ring; 206. Positioning hole; 207. Arc-shaped side plate; 208. Limiting block; 209. Limiting post; 210. Spring; 211. Brake block; 3. Grinding assembly; 301. Cross-shaped retaining block; 302. Spherical retaining block; 303. Motor mounting plate; 304. Ball groove; 305. Servo motor; 306. Top block; 307. First retaining ring; 308. Retaining hole; 309. Second retaining ring; 310. Bolt. Detailed Implementation

[0030] 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.

[0031] Please see Figures 1-6 As shown, a multi-angle adjustable polishing device for decoration projects includes a handle 1, an angle adjustment component 2 is provided inside the handle 1, and a polishing component 3 is provided on one side of the angle adjustment component 2.

[0032] Angle adjustment assembly 2 includes a positioning ring 205, a positioning hole 206, an arc-shaped side plate 207, a limiting block 208, a limiting post 209, a spring 210, and a brake block 211. The positioning ring 205 is movably installed inside the grip rod 1. The positioning hole 206 is provided through the positioning ring 205. Multiple arc-shaped side plates 207 are movably connected to the periphery of the positioning ring 205. A limiting block 208 is fixedly connected to the side of the arc-shaped side plate 207 closest to the positioning ring 205. A limiting post 209 is fixedly connected to one side of the limiting block 208. A spring 210 is sleeved on the limiting post 209. A brake block 211 is fixedly connected to the end of the arc-shaped side plate 207 away from the positioning ring 205. The brake block 211 is made of damping material.

[0033] The angle adjustment assembly 2 also includes a knob 201, a lead screw 202, a bearing ring 203, and an internally threaded tube 204. The knob 201 is movably mounted on the side of the handle 1 away from the grinding assembly 3. The lead screw 202 is fixedly connected to one side of the knob 201. The lead screw 202 is movably sleeved inside the bearing ring 203. The bearing ring 203 is fixedly mounted inside the handle 1. The internally threaded tube 204 is threaded onto one side of the lead screw 202. The internally threaded tube 204 is fixedly connected to one side of the positioning ring 205.

[0034] The grinding assembly 3 includes a cross-shaped locking block 301, a ball-shaped locking block 302, a motor mounting plate 303, and a ball groove 304. The cross-shaped locking block 301 is fixedly installed inside the handle 1. The ball-shaped locking block 302 is fixedly connected to one side of the cross-shaped locking block 301. The motor mounting plate 303 has a ball groove 304. The ball-shaped locking block 302 is movably fitted onto the motor mounting plate 303 through the ball groove 304. The shape of the ball groove 304 is adapted to the shape of the ball-shaped locking block 302.

[0035] The grinding assembly 3 also includes a servo motor 305, a top block 306, a first retaining ring 307, retaining holes 308, a second retaining ring 309, and bolts 310. The servo motor 305 is fixedly installed on the side of the motor mounting plate 303 away from the cross-shaped retaining block 301. The output end of the servo motor 305 is fixedly installed with the top block 306. The first retaining ring 307 is fixedly connected to the outside of the top block 306. Several retaining holes 308 are formed through the first retaining ring 307. The second retaining ring 309 is fixedly installed on one side of the first retaining ring 307 by bolts 310. During fixed installation, the second retaining ring 309 is sleeved on the outside of the top block 306, with a gap of 3-5mm between them.

[0036] Furthermore, the end of the bolt 310 is set with a pointed tip to facilitate piercing the sandpaper and to cooperate with the locking hole 308 on the first retaining ring 307 to fix the sandpaper on the top block 306.

[0037] Furthermore, the limiting post 209 is movably sleeved inside the positioning hole 206.

[0038] Furthermore, the arc-shaped side plate 207 is movably connected in the gap between the cross-shaped locking block 301 and the grip bar 1. When the angle of the grinding assembly 3 is not fixed, the spring 210 is in an uncompressed state, and at this time, the brake block 211 at the end of the arc-shaped side plate 207 is not in contact with the motor mounting plate 303. When it is necessary to fix the angle of the grinding assembly 3, the knob 201 is rotated to compress the spring 210. Under the action of the spring 210, the brake block 211 at the end of the arc-shaped side plate 207 abuts against one side of the motor mounting plate 303, and the contact surface between the brake block 211 and the motor mounting plate 303 is provided with anti-slip texture.

[0039] Further explanation is needed:

[0040] The angle adjustment component 2 locks the angle of the grinding component through a combination of lead screw 202 transmission and damping braking. The rotation of knob 201 drives lead screw 202, which converts the rotational motion into axial displacement of internal thread tube 204 through bearing ring 203, pushing positioning ring 205 to slide inside handle 1. The positioning holes 206 evenly distributed around the circumference of positioning ring 205 elastically engage with limit post 209, and are guided by limit block 208 of arc-shaped side plate 207. Braking block 211 uses Shore 70A damping rubber, which, in conjunction with the anti-slip texture of the contact surface of motor mounting plate 303, provides sufficient friction torque to brake multiple positioning nodes of motor mounting plate 303, ensuring self-locking of the angle after adjustment, suitable for grinding walls at multiple angles.

[0041] The grinding assembly 3 achieves multi-angle grinding and quick sandpaper replacement through a spherical joint and quick-release structure. The cross-shaped locking block 301 is fixedly connected to the handle 1, and its spherical locking block 302 forms a clearance fit with the ball groove 304 of the motor mounting plate 303, allowing the grinding assembly to swing freely within a certain angle range. With the axial braking of the brake block 211, it can cover grinding conditions at different angles.

[0042] The top block 306 at the output end of the servo motor 305 adopts a double-ring sand-clamping structure: the first retaining ring 307 and the second retaining ring 309 fix the sandpaper on the top block 306 by M4 bolts 310. The sandpaper clamping area of ​​the second retaining ring 309 is provided with radial protrusions, which, together with the circumferential limit of the retaining hole 308, ensure that the sandpaper does not slip when rotating at high speed. The brake block 211 makes dynamic contact with the motor disk and synchronously suppresses grinding vibration when the angle is locked.

[0043] The implementation principle of a multi-angle adjustable grinding device for decoration projects according to an embodiment of this application is as follows:

[0044] First, place the sandpaper on the top block 306. Align the bolt 310 on the second retaining ring 309 with the retaining hole 308 on the first retaining ring 307. Use the tip of the bolt 310 to pierce the sandpaper, pass through the retaining hole 308, and engage with the nut to fix the sandpaper onto the top block 306, positioned between the first retaining ring 307 and the second retaining ring 309. At this point, the first retaining ring 307, the top block 306, and the second retaining ring 309 simultaneously fix the sandpaper, achieving stable clamping at high speeds.

[0045] Secondly, by holding the handle 1, the grinding component 3 can swing freely within a certain angle range through the ball-shaped locking block 302, thereby adhering the grinding component 3 to the wall surface to be ground. Rotating the tail knob 201 drives the lead screw 202 to rotate, and the rotation is converted into the axial displacement of the internal thread tube 204 through the bearing ring 203. At this time, the positioning ring 205 moves forward along the limit post 209 as the internal thread tube 204 moves forward, while compressing the spring 210, causing the spring 210 to push multiple limit blocks 208 and multiple arc-shaped side plates 207 to move towards the motor mounting plate 303 until the brake block 211 at the end of the arc-shaped side plate 207 abuts against the motor mounting plate 303, thereby locking the angle of the motor mounting plate 303.

[0046] When the servo motor 305 is started, the top block 306 drives the sandpaper to rotate and polish the wall surface, while the brake block 211 absorbs the vibration synchronously in the locked state.

[0047] After grinding is completed, the reverse rotation knob 201 drives the lead screw 202 to rotate in the opposite direction. The reverse rotation is converted into the reverse axial displacement of the internal thread tube 204 through the bearing ring 203. At this time, the positioning ring 205 moves backward along the limiting post 209 as the internal thread tube 204 moves backward. At the same time, the spring 210 is released, causing the spring 210 to push multiple limiting blocks 208 and multiple arc-shaped side plates 207 to move away from the motor mounting plate 303 until the limiting post 209 is embedded in the positioning hole 206 on the positioning ring 205. At this time, the limiting post 209 at the end of the arc-shaped side plate 207 separates from the motor mounting plate 303, releasing the angle locking state of the grinding assembly 3.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-angle adjustable polishing device for decoration projects, comprising a handle (1), characterized in that: An angle adjustment component (2) is provided inside the grip (1), and a polishing component (3) is provided on one side of the angle adjustment component (2). The angle adjustment assembly (2) includes a positioning ring (205), a positioning hole (206), an arc-shaped side plate (207), a limiting block (208), a limiting post (209), a spring (210), and a brake block (211). The positioning ring (205) is movably installed inside the grip (1). The positioning ring (205) has a positioning hole (206) through it. Multiple arc-shaped side plates (207) are movably connected to the periphery of the positioning ring (205). The side of the arc-shaped side plate (207) near the positioning ring (205) is fixedly connected to the limiting block (208). The side of the limiting block (208) is fixedly connected to the limiting post (209). The limiting post (209) is fitted with a spring (210). The end of the arc-shaped side plate (207) away from the positioning ring (205) is fixedly connected to the brake block (211). The brake block (211) is made of damping material. When the grinding angle is fixed, the brake block (211) abuts against the grinding assembly (3).

2. The multi-angle adjustable grinding device for decoration projects as described in claim 1, characterized in that: The angle adjustment assembly (2) also includes a knob (201), a lead screw (202), a bearing ring (203), and an internal threaded tube (204). The knob (201) is movably installed on the side of the handle (1) away from the grinding assembly (3). The lead screw (202) is fixedly connected to one side of the knob (201). The lead screw (202) is movably sleeved inside the bearing ring (203). The bearing ring (203) is fixedly installed inside the handle (1). The internal threaded tube (204) is threaded onto one side of the lead screw (202). The internal threaded tube (204) is fixedly connected to one side of the positioning ring (205).

3. The multi-angle adjustable grinding device for decoration projects as described in claim 1, characterized in that: The grinding assembly (3) includes a cross-shaped locking block (301), a ball-shaped locking block (302), a motor mounting plate (303), and a ball groove (304). The cross-shaped locking block (301) is fixedly installed inside the grip (1). A spherical locking block (302) is fixedly connected to one side of the cross-shaped locking block (301). A ball groove (304) is provided on the motor mounting plate (303). The spherical locking block (302) is movably sleeved on the motor mounting plate (303) through the ball groove (304). The shape of the ball groove (304) is adapted to the shape of the spherical locking block (302).

4. The multi-angle adjustable grinding device for decoration projects as described in claim 3, characterized in that: The grinding assembly (3) also includes a servo motor (305), a top block (306), a first retaining ring (307), retaining holes (308), a second retaining ring (309), and bolts (310). The servo motor (305) is fixedly installed on the side of the motor mounting plate (303) away from the cross retaining block (301). The top block (306) is fixedly installed on the output end of the servo motor (305). The first retaining ring (307) is fixedly connected to the outside of the top block (306). Several retaining holes (308) are opened through the first retaining ring (307). In use, the second retaining ring (309) fixes the sandpaper onto the top block (306) by the cooperation of the bolt (310) and the retaining hole (308).

5. A multi-angle adjustable grinding device for decoration projects as described in claim 4, characterized in that: The end of the bolt (310) is set with a pointed tip, and the second retaining ring (309) is provided with radial protrusions.

6. The multi-angle adjustable grinding device for decoration projects as described in claim 3, characterized in that: The limiting post (209) is movably sleeved inside the positioning hole (206) and elastically engaged with the positioning hole (206); The arc-shaped side plate (207) is movably connected in the gap between the cross-shaped locking block (301) and the grip (1).

7. A multi-angle adjustable grinding device for decoration projects as described in claim 3, characterized in that: The contact surface between the brake block (211) and the motor mounting plate (303) is provided with anti-slip texture.

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