A protective structure and a grooving machine for interior decoration

By adopting a fan-shaped protective shell and a moving wheel structure on the grooving machine, the problems of debris splashing and protective shell jamming during the grooving process are solved, achieving higher safety and construction efficiency.

CN224446414UActive Publication Date: 2026-07-03SICHUAN YUANDA DECORATION ENGINEERING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN YUANDA DECORATION ENGINEERING CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

During the cutting process, existing grooving machines generate debris and dust that easily fly up due to friction between the cutting blade and the wall, posing a safety hazard. Furthermore, the protective structure is prone to jamming when moving, causing the blade to deviate.

Method used

It adopts a fan-shaped protective shell and a moving wheel structure. The moving wheel rolls in contact with the wall. The extension length of the moving wheel can be adjusted by a knob and a threaded rod to ensure that the protective shell is stably attached to the wall. The position is monitored by an anti-detachment ring and an indicator arrow scale line to avoid friction jamming and blade deviation.

Benefits of technology

It reduces the safety risks of operating the grooving machine, improves the stability and adaptability of the protective shell, reduces rework caused by human error, and enhances operational safety and construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of grooving machine technology and discloses a protective structure, including a fan-shaped protective shell installed in the middle of the drive head. Several support blocks are fixedly connected to both sides of the outer wall of the fan-shaped protective shell. Adjustment components are connected to the inner walls of the support blocks. Support components are connected to the ends of the adjustment components away from the drive head. Moving wheels are connected to the support components, and the wheel surfaces are not lower than the plane of the fan-shaped protective shell. A grooving machine for interior decoration includes the above-mentioned protective structure, and also includes a grooving machine body, a drive head installed at the front end of the grooving machine body, and a blade installed at the output end of the drive head. The blade is located inside the fan-shaped protective shell. This protective structure and the grooving machine for interior decoration use rolling contact between the moving wheels and the wall surface to replace the sliding friction of the traditional protective shell, reducing the grooving machine's movement and preventing blade deviation or "flying blade" risks caused by excessive frictional resistance, thus improving operational safety.
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Description

Technical Field

[0001] This utility model relates to the field of grooving machine technology, specifically to a protective structure and a grooving machine for interior decoration. Background Technology

[0002] An interior grooving machine is a power tool specifically designed to create grooves for electrical wires, water pipes, etc., in walls or floors. It efficiently completes the cutting task, allowing wires or pipes to be embedded into the walls or floors, resulting in an aesthetically pleasing and space-saving design.

[0003] Patent CN216609603U discloses a wall grooving machine for interior decoration, comprising: a water tank installed on the front side of the main handle, with a top cover connected to the upper side of the water tank; a motor installed on the front side of the water tank, with grooving blades at the bottom of the motor; and a rear baffle connected to the rear side of the grooving blades. This wall grooving machine for interior decoration is simple and easy to operate. It allows for the storage of dust-suppressing water within the device, which is then sprayed synchronously as the device moves, thus avoiding limitations on the grooving distance. It also facilitates water spraying on both sides of the blades to suppress dust, effectively improving the dust suppression quality and efficiency, enhancing the device's safety, and facilitating vertical alignment of the auxiliary support device with the wall. Furthermore, it allows for easy and quick control of the device to cut horizontally across the wall, resulting in high efficiency and labor-saving operation. This significantly improves the grooving quality and aesthetics, enhancing the device's practicality.

[0004] However, the above-mentioned grooving machine still has the following problems in actual use:

[0005] During the grooving process, the high-speed rotation of the cutting disc and its friction with the wall or floor material generate a large amount of debris, dust, and possibly even small stones that may fly into the air. If these substances fly directly at the operator, they may cause injury to the eyes and skin.

[0006] To reduce the operational risks of grooving machines, some protective structures (such as dust baffles, safety covers, and emergency stop buttons) have been developed in the existing technology. However, these structures only address "physical protection during operation" (such as dust prevention and prevention of accidental touch). However, the protective cover or dust baffle needs to be attached to the wall during grooving, but the area to be grooved is usually a "rough blank." When the protective cover or dust baffle moves with the grooving machine, it is easily jammed due to friction and other reasons, which may cause the blade to deviate from its trajectory or even result in "flying" of the blade. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a protective structure and a grooving machine for interior decoration, which can reduce the friction between the protective shell and the wall, thereby reducing a series of safety problems caused by excessive friction.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a protective structure and a grooving machine for interior decoration, comprising a fan-shaped protective shell installed in the middle of a drive head, wherein several support blocks are fixedly connected to both sides of the outer wall of the fan-shaped protective shell, and an adjustment component is connected to the inner wall of each of the support blocks, wherein a support component is connected to the end of each adjustment component away from the drive head, and a movable wheel is connected to each of the support components, wherein the wheel surface of the movable wheel is not lower than the plane of the fan-shaped protective shell.

[0009] Furthermore, the adjustment assembly includes a knob, a threaded rod, and an anti-detachment ring. An anti-detachment opening is provided on the side of the support block away from the moving wheel. The anti-detachment ring is rotatably connected to the anti-detachment opening. One end of the anti-detachment ring extends through to the outside of the anti-detachment opening and is fixedly connected to one side of the knob. The knob is sleeved and threadedly connected to the outer wall of the threaded rod. The end of the threaded rod away from the drive head extends through the support block and is connected to the support assembly.

[0010] Furthermore, the support assembly includes a U-shaped block and a rotating shaft. One end of the U-shaped block is fixedly connected to one end of the threaded rod that passes through the support block. The other end of the U-shaped block is sleeved and fixedly connected to both ends of the rotating shaft. The movable wheel is located inside the U-shaped block. The middle part of the rotating shaft is rotatably connected to the central axis of the movable wheel. The side wall of the U-shaped block abuts against the side wall of the fan-shaped protective shell.

[0011] Furthermore, an anti-detachment plate is fixedly connected to the end of the threaded rod away from the U-shaped block, and the diameter of the anti-detachment plate is larger than the diameter of the threaded rod.

[0012] Furthermore, the side wall of the anti-detachment plate is fixedly connected with an indicator arrow, and the side wall of the fan-shaped protective shell is provided with scale lines, with the indicator arrow pointing to the scale lines.

[0013] Furthermore, the number of support blocks on both sides of the fan-shaped protective shell is the same, and several support blocks on the same side are symmetrically distributed along the axis of the fan-shaped protective shell, and the spacing between several support blocks on the same side is the same.

[0014] This utility model also provides a grooving machine for interior decoration, including the above-mentioned protective structure, and also includes a grooving machine body, a drive head installed at the front end of the grooving machine body and a blade installed at the output end of the drive head. The blade is located inside the fan-shaped protective shell, and the blade and the fan-shaped protective shell are arranged concentrically.

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

[0016] 1. This type of protective structure and grooving machine for interior decoration uses rolling contact between the moving wheels and the wall surface to replace the sliding friction of the traditional protective shell, reducing the movement and jamming of the grooving machine, avoiding the risk of blade deviation or "flying knife" due to excessive frictional resistance, and improving operational safety.

[0017] 2. This type of protective structure and grooving machine for interior decoration can precisely adjust the extension length of the moving wheels by turning the threaded rod with a knob, adapting to walls or floors with different flatness, ensuring that the protective shell always stably fits the working surface, and adapting to diverse construction scenarios;

[0018] 3. This type of protective structure and grooving machine for interior decoration uses anti-detachment rings and anti-detachment openings to prevent the adjustment components from falling off, and anti-detachment plates to prevent excessive displacement of the threaded rods. With the help of indicator arrows and scale lines, the position of the moving wheels can be intuitively monitored, which facilitates quick calibration and loosening warning.

[0019] 4. This type of protective structure and grooving machine for interior decoration can indirectly limit the depth of the blade cutting into the wall by adjusting the extension length of the moving wheels, avoiding problems of cutting too deep or too shallow due to human operation errors, and reducing rework and repair work. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall appearance of the present utility model;

[0021] Figure 2 This is a detailed connection diagram of the support block, adjustment assembly, and moving wheels of this utility model;

[0022] Figure 3 This utility model Figure 2 Explosion diagram of each component.

[0023] In the diagram: 1. Main body of the grooving machine; 2. Drive head; 3. Fan-shaped protective shell; 4. Blade; 5. Support block; 6. Knob; 7. U-shaped block; 8. Moving wheel; 9. Threaded rod; 10. Anti-detachment plate; 11. Indicator arrow; 12. Rotating shaft; 13. Anti-detachment ring; 301. Scale line; 501. Anti-detachment opening. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figures 1-3 A protective structure and a grooving machine for interior decoration includes a fan-shaped protective shell 3 installed in the middle of a drive head 2. Several support blocks 5 are fixedly connected to both sides of the outer wall of the fan-shaped protective shell 3. Adjustment components are connected to the inner walls of the several support blocks 5. Support components are connected to the ends of the several adjustment components away from the drive head 2. Moving wheels 8 are connected to the several support components. The wheel surface of the moving wheels 8 is not lower than the plane of the fan-shaped protective shell 3.

[0026] like Figures 1 to 3As shown, before using the protective structure and the grooving machine for interior decoration in this utility model, the operator only needs to rotate the adjustment component. After the adjustment component is rotated under force, it can move the support component and the movable wheel 8 located inside the support component. Then, the movable wheel 8 can be used to press against the wall. When it is necessary to cut the wall, the movable wheel 8 can be used to press against the wall to reduce friction, thereby improving the overall safety.

[0027] As a preferred embodiment of this utility model, the adjustment component includes a knob 6, a threaded rod 9, and an anti-detachment ring 13. The support block 5 has an anti-detachment opening 501 on the side away from the moving wheel 8. The anti-detachment ring 13 is rotatably connected to the anti-detachment opening 501. One end of the anti-detachment ring 13 passes through the outside of the anti-detachment opening 501 and is fixedly connected to one side of the knob 6. The knob 6 is sleeved and threadedly connected to the outer wall of the threaded rod 9. The end of the threaded rod 9 away from the drive head 2 passes through the support block 5 and is connected to the support component.

[0028] More specifically, when it is necessary to adjust the extension length of the movable wheel 8, simply turn the knob 6. The knob 6 rotates within the anti-detachment opening 501 through the anti-detachment ring 13, so that the knob 6 can only rotate and cannot fall off. When the knob 6 rotates, it will also cause the threaded rod 9 to move (the threaded rod 9 can only move and cannot rotate due to the restriction of the support component), thereby changing the position of the support component and the movable wheel 8.

[0029] As a preferred embodiment of this utility model, the support assembly includes a U-shaped block 7 and a rotating shaft 12. One end of the U-shaped block 7 is fixedly connected to one end of the threaded rod 9 that passes through the support block 5. The other end of the U-shaped block 7 is sleeved and fixedly connected to both ends of the rotating shaft 12. The movable wheel 8 is located inside the U-shaped block 7. The middle part of the rotating shaft 12 is rotatably connected to the central axis of the movable wheel 8. The side wall of the U-shaped block 7 abuts against the side wall of the fan-shaped protective shell 3.

[0030] More specifically, when the threaded rod 9 is displaced, because the U-shaped block 7 is pressed against the surface of the fan-shaped protective shell 3, the threaded rod 9 cannot rotate. Therefore, when the knob 6 is turned, the threaded rod 9 and the U-shaped block 7 connected to the threaded rod 9 can move together, thereby changing the position of the moving wheel 8.

[0031] As a preferred embodiment of this utility model, an anti-detachment plate 10 is fixedly connected to the end of the threaded rod 9 away from the U-shaped block 7, and the diameter of the anti-detachment plate 10 is larger than the diameter of the threaded rod 9.

[0032] More specifically, by setting the anti-detachment plate 10, the threaded rod 9 can be prevented from falling out of the knob 6.

[0033] As a preferred embodiment of this utility model, the side wall of the anti-detachment plate 10 is fixedly connected with an indicator arrow 11, and the side wall of the fan-shaped protective shell 3 is provided with a scale line 301, with the indicator arrow 11 pointing to the scale line 301.

[0034] More specifically, by setting the indicator arrow 11 and the scale line 301, the distance that the moving wheel 8 has moved and the remaining measurement steps can be intuitively understood; in addition, because vibration will occur during cutting, the indicator arrow 11 and the scale line 301 can also be used to determine whether the moving wheel 8 has become loose. If it has become loose, it can be adjusted in time to avoid excessive errors.

[0035] As a preferred embodiment of this utility model, the number of support blocks 5 on both sides of the fan-shaped protective shell 3 is the same, and the support blocks 5 on the same side are symmetrically distributed about the axis of the fan-shaped protective shell 3, and the spacing between the support blocks 5 on the same side is the same.

[0036] More specifically, this design allows for more even distribution of force and reduces the likelihood of tilting.

[0037] This utility model also provides a grooving machine for interior decoration, including the above-mentioned protective structure, and also includes a grooving machine body 1, a drive head 2 installed at the front end of the grooving machine body 1 and a blade 4 installed at the output end of the drive head 2. The blade 4 is located inside the fan-shaped protective shell 3, and the blade 4 and the fan-shaped protective shell 3 are arranged concentrically.

[0038] It should be noted that the main body 1, drive head 2, blade 4 and sector-shaped protective shell 3 of the grooving machine are all existing technologies, so their connection relationship, position relationship and working principle will not be described in detail here;

[0039] In addition, the grooving machine for interior decoration usually includes, but is not limited to, a handle and armrest installed on the main body 1 of the grooving machine, a power system installed between the drive head 2 and the blade 4, a power supply located inside the main body 1 of the grooving machine, an emergency stop button located on the outer shell of the main body 1 of the grooving machine, and a cooling and dust suppression system (usually water spray) installed between the fan-shaped protective shell 3 and the blade 4. Since this part of the structure is not closely related to the structure of this utility model, it will not be described in detail.

[0040] Furthermore, since the required grooving depth varies when using the grooving machine body 1 to groove the wall, the adjustment components described above allow the blade 4 and the fan-shaped protective shell 3 to have a fixed diameter. Therefore, by changing the extension length of the moving wheel 8, the blade 4 can only cut into the wall at a specific length, thereby limiting the wall depth and avoiding problems such as cutting too deep or too shallow, which would require rework or repair.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective structure comprising a sector-shaped protective shell (3) mounted in the middle of a driving head (2), characterized in that: Several support blocks (5) are fixedly connected to both sides of the outer wall of the fan-shaped protective shell (3). Adjustment components are connected to the inner walls of the several support blocks (5). Support components are connected to the ends of the several adjustment components away from the drive head (2). Moving wheels (8) are connected to the several support components. The wheel surface of the moving wheels (8) is not lower than the plane of the fan-shaped protective shell (3).

2. The containment structure of claim 1, wherein: The adjustment assembly includes a knob (6), a threaded rod (9), and an anti-detachment ring (13). The support block (5) has an anti-detachment opening (501) on the side away from the moving wheel (8). The anti-detachment ring (13) is rotatably connected to the anti-detachment opening (501). One end of the anti-detachment ring (13) passes through the outside of the anti-detachment opening (501) and is fixedly connected to one side of the knob (6). The knob (6) is sleeved and threadedly connected to the outer wall of the threaded rod (9). The end of the threaded rod (9) away from the drive head (2) passes through the support block (5) and is connected to the support assembly.

3. The containment structure of claim 2, wherein: The support assembly includes a U-shaped block (7) and a rotating shaft (12). One end of the U-shaped block (7) is fixedly connected to one end of the threaded rod (9) that passes through the support block (5). The other end of the U-shaped block (7) is sleeved and fixedly connected to both ends of the rotating shaft (12). The moving wheel (8) is located inside the U-shaped block (7). The middle part of the rotating shaft (12) is rotatably connected to the central axis of the moving wheel (8). The side wall of the U-shaped block (7) abuts against the side wall of the fan-shaped protective shell (3).

4. The containment structure of claim 3, wherein: The threaded rod (9) is fixedly connected to an anti-detachment plate (10) at the end away from the U-shaped block (7), and the diameter of the anti-detachment plate (10) is larger than the diameter of the threaded rod (9).

5. The protective structure according to claim 4, characterized in that: The anti-detachment plate (10) has an indicator arrow (11) fixedly connected to its side wall, and the fan-shaped protective shell (3) has a scale line (301) on its side wall, with the indicator arrow (11) pointing to the scale line (301).

6. A protective structure according to claim 5, wherein: The number of support blocks (5) on both sides of the fan-shaped protective shell (3) is the same, and the support blocks (5) on the same side are symmetrically distributed along the axis of the fan-shaped protective shell (3), and the spacing between the support blocks (5) on the same side is the same.

7. A slotter for interior finishing, characterized in that: The protective structure includes any one of claims 1-6, and further includes a grooving machine body (1), a drive head (2) installed at the front end of the grooving machine body (1), and a blade (4) installed at the output end of the drive head (2). The blade (4) is located inside the fan-shaped protective shell (3), and the blade (4) and the fan-shaped protective shell (3) are arranged concentrically.