Self-adaptive grinding device for steel-wood cabinet
By designing an adaptive sanding device with a gripping auxiliary structure and a concave handle, the operational difficulties of the steel and wood cabinet sanding device at the inner corners were solved, achieving all-round sanding without blind spots and reducing operator fatigue.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANG ZHOU DONGRONG IND & TRADING CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-17
AI Technical Summary
Existing steel and wood cabinet polishing devices are difficult to operate at the inner corners and edges, and prolonged hand operation can easily cause fatigue, making it impossible to achieve all-round polishing without blind spots.
An adaptive grinding device for steel and wood cabinets was designed, comprising a housing, a grinding head, a lubrication mechanism, and a gripping auxiliary structure. The gripping auxiliary structure enables the housing to swing left and right within a movable ring, and combined with the concave handle and auxiliary handle, it enables multi-angle operation.
It improves the convenience and flexibility of operation, reduces labor intensity, and achieves a thorough and seamless polishing effect.
Smart Images

Figure CN224129390U_ABST
Abstract
Description
Technical Field
[0001] This utility model is an adaptive sanding device for steel and wood cabinets, belonging to the field of sanding devices. Background Technology
[0002] On November 17, 2023, our company published a flexible CNC grinding device for steel and wood cabinets with announcement number CN220029734U. The device's structure includes a housing, a motor fixedly mounted on the housing, a connecting pipe welded to the motor, a rotatable connection between the connecting pipe and the housing, a grinding head made of scouring pad material on the connecting pipe, a support mechanism on the housing, a lubrication mechanism on the housing, and a handle on the housing. Although this technology uses a support mechanism to assist the grinding head, user feedback revealed that the casters easily leave marks on the interface between the caster and the steel and wood cabinet. For some inner corners, mechanical grinding is difficult due to the obstruction of the support mechanism; moreover, prolonged grinding can cause fatigue when using the handheld device. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an adaptive sanding device for steel and wood cabinets to solve the problem.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a self-adaptive sanding device for steel and wood cabinets, comprising a housing, a sanding head, a lubrication mechanism, and a handle; the sanding head is rotatably mounted on the housing; the lubrication mechanism is mounted on the housing and acts on the sanding head; the handle is fixedly mounted on the housing; the handle is horizontally aligned with the sanding head and mounted on the rear side of the housing; the housing is provided with a gripping auxiliary structure.
[0005] The gripping auxiliary structure includes two first rotating pins, a movable ring, two second rotating pins, and an auxiliary handle; the two first rotating pins are connected to the housing; the two second rotating pins are respectively fixed to the left and right sides of the movable ring; the movable ring is hinged to the first rotating pins, causing the housing to swing left and right within the movable ring about the first rotating pins as the axis; the auxiliary handle is hinged to the second rotating pins, causing the movable ring to swing up and down within the auxiliary handle about the second rotating pins as the axis.
[0006] Preferably, the handle is concave.
[0007] Preferably, the auxiliary handle includes a connecting rod hinged to the second rotating pin, and a rotating drum for hand gripping; the rotating drum is rotatably mounted on the connecting rod.
[0008] Preferably, the diameter of the movable ring is larger than that of the housing.
[0009] Preferably, the gripping auxiliary structure is positioned close to the grinding head.
[0010] Preferably, the two first rotating pins are fixed to the upper and lower sides of the housing, respectively.
[0011] Preferably, a bearing ring is rotatably mounted on the housing, and two of the first rotating pins are mounted on the bearing ring.
[0012] Beneficial effects
[0013] The design of the handle and auxiliary handle of this utility model allows users to operate the device more conveniently with both hands, reducing the difficulty of operation and labor intensity, and improving work efficiency.
[0014] Meanwhile, the design of the gripping auxiliary structure allows the device to adapt to steel and wood cabinet surfaces of different shapes and angles, achieving all-round, no-dead-angle sanding, greatly improving the flexibility and precision of sanding. Attached Figure Description
[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0016] Figure 1 This is a schematic diagram of the structure of an adaptive sanding device for steel and wood cabinets according to this utility model;
[0017] Figure 2 This utility model Figure 1 A top-view structural diagram;
[0018] Figure 3 This is a schematic diagram of the gripping auxiliary structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the bearing ring mounted on the housing of this utility model;
[0020] Figure 5 This is a schematic diagram of existing technology. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] Please see Figures 1-4 This utility model provides a technical solution for an adaptive sanding device for steel and wood cabinets, comprising:
[0023] The housing 1, as the main structure of the device, is used to support and fix other components.
[0024] The grinding head 2, rotatably mounted on the housing 1, is the main component for grinding operations. Driven by a motor, the grinding head 2 can rotate at high speed to grind the surface of the steel-wood cabinet. In one embodiment, the grinding head 2 is made of scouring pad material.
[0025] The lubrication mechanism 3 is mounted on the housing 1 and acts on the grinding head 2. This lubrication mechanism 3 is existing technology and will not be described in detail in this specification.
[0026] Furthermore, the handle 4 is fixedly installed on the rear side of the housing 1, corresponding horizontally to the grinding head 2. In conjunction with the gripping auxiliary structure 5, the housing 1 can be easily swung to change the swing angle of the grinding head 2.
[0027] The handle 4 has a concave design, making it easy for users to grip and operate.
[0028] A gripping auxiliary structure 5 is disposed on the housing 1 to assist the user in better controlling and operating the device. In one embodiment, this structure includes two first rotating pins 51, a movable ring 52, two second rotating pins 53, and an auxiliary handle 54. The two first rotating pins 51 are respectively fixed to the upper and lower sides of the housing 1. The movable ring 52 is hinged to the housing 1 via the first rotating pins 51, allowing the housing 1 to swing left and right within the movable ring 52. The auxiliary handle 54 is hinged to the second rotating pins 53, allowing the movable ring 52 to swing up and down within the auxiliary handle 54 with the second rotating pins 53 as the pivot point. The grinding head 2 is operated by cooperating with both hands. In another embodiment, the bearing ring 55 is rotatably mounted on the housing 1, and the two first rotating pins 51 are mounted on the bearing ring 55; this allows the worker to grip the handle 4, rotate the housing 1, and thus change the angle of the housing 1 within the movable ring 52, thereby making the range of motion of the housing 1 wider.
[0029] The auxiliary handle 54 includes a connecting rod 541 hinged to the second rotating pin 53 and a rotating cylinder 542 for hand grip. The rotating cylinder 542 is rotatably mounted on the connecting rod 541, allowing the user to grip the handle more comfortably.
[0030] Furthermore, the diameter of the movable ring 52 is larger than that of the housing 1, so that the housing 1 can move within the movable ring 52.
[0031] Furthermore, the gripping auxiliary structure 5 is positioned close to the grinding head 2, making it easier to hold the auxiliary handle 54.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0033] 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 self-adaptive sanding device for steel and wood cabinets, comprising a housing, a sanding head, a lubrication mechanism, and a handle; the sanding head is rotatably mounted on the housing; the lubrication mechanism is mounted on the housing and acts on the sanding head; the handle is fixedly mounted on the housing; characterized in that: The handle is horizontally aligned with the grinding head and is installed on the rear side of the housing; the housing is provided with a gripping auxiliary structure. The gripping auxiliary structure includes two first rotating pins, a movable ring, two second rotating pins, and an auxiliary handle; the two first rotating pins are connected to the housing; the two second rotating pins are respectively fixed to the left and right sides of the movable ring; the movable ring is hinged to the first rotating pins, causing the housing to swing left and right within the movable ring about the first rotating pins as the axis; the auxiliary handle is hinged to the second rotating pins, causing the movable ring to swing up and down within the auxiliary handle about the second rotating pins as the axis.
2. The self-adaptive sanding device for steel and wood cabinets according to claim 1, characterized in that: The handle is concave.
3. The self-adapting polishing device for steel-wood cabinet according to claim 1, characterized in that: The auxiliary handle includes a connecting rod hinged to the second rotating pin, and a rotating drum for hand gripping; the rotating drum is rotatably mounted on the connecting rod.
4. The self-adapting polishing device for steel-wood cabinet according to claim 1, characterized in that: The diameter of the movable ring is larger than that of the housing.
5. The self adaptive polishing device for steel-wooden cabinet as claimed in claim 1, wherein: The gripping auxiliary structure is positioned close to the grinding head.
6. The self-adapting polishing device for steel-wood cabinet according to claim 1, characterized in that: The two first rotating pins are respectively fixed to the upper and lower sides of the housing.
7. The self-adapting polishing device for steel-wood cabinet according to claim 1, characterized in that: A bearing ring is rotatably mounted on the housing, and two of the first rotating pins are mounted on the bearing ring.
Citation Information
Patent Citations
Flexible numerical control grinding device for steel-wood cabinet
CN220029734U