A door panel grinding machine for steel door processing

By designing a rotating mechanism and a connecting mechanism, the problem of limited placement space caused by the protruding handle of the grinder is solved, enabling convenient storage of the handle and easy disassembly and assembly of the grinding wheel cover, thereby improving operating efficiency and comfort.

CN224425176UActive Publication Date: 2026-06-30SHANDONG QITE RAY PROTECTION EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG QITE RAY PROTECTION EQUIPMENT CO LTD
Filing Date
2025-07-31
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing grinder handle protrudes from the side of the machine body, which limits the placement space and makes it impossible to store effectively.

Method used

A rotating mechanism was designed, which, through the cooperation of a movable block and a fixed plate, allows the handle to be rotated and stored towards the grinding machine body with the rotating block as the center when not in use, and is limited and fixed by the insertion and locking of a support spring and a protrusion; at the same time, a connecting mechanism is used to replace bolts or screws, simplifying the disassembly and assembly process of the grinding wheel cover.

Benefits of technology

The handle can be stored away, saving space and improving operating efficiency and user comfort, while also simplifying the process of disassembling and assembling the grinding wheel cover.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224425176U_ABST
    Figure CN224425176U_ABST
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Abstract

This utility model relates to the field of grinding machine technology, specifically a door panel grinding machine for steel door processing, comprising: a machine body, including a grinding machine body, a grinding head fixedly connected to the surface of the grinding machine body, a handle and a grinding wheel cover mounted on the surface of the grinding head, and a grinding wheel rotatably connected to the surface of the grinding head. This utility model, by separating the handle from the surface of the grinding head and connecting it under the connection of a movable block and two sets of fixed plates, allows the handle to rotate towards the grinding machine body around the rotating block when not in use, thus preventing the handle from protruding outwards from the outside of the grinding machine, achieving the effect of storage and saving placement space. By changing the original bolt or screw fixing method of the grinding wheel cover to a connecting mechanism fixing method, it makes the disassembly and assembly of the grinding wheel cover more convenient for workers, and the process does not require other tools; disassembly and assembly can be achieved simply by rotating the lever.
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Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, specifically a door panel grinding machine for processing steel doors. Background Technology

[0002] Steel is a material with iron as its main element, a carbon content generally below 2%, and other elements. Therefore, steel is the main material used to make steel doors. Steel door processing refers to the process of making steel doors through a series of processes.

[0003] When processing steel door panels, a grinder is needed to grind the protruding edges of the cut panels. However, existing grinders are held by gripping the machine body and handle, with the handle fixed and protruding from the side of the machine body. This protruding handle can restrict the storage space when placing the grinder, making it impossible to achieve the desired storage effect. Utility Model Content

[0004] The purpose of this utility model is to provide a door panel grinding machine for steel door processing, so as to solve the problem mentioned in the background art that when using the grinding machine, the machine body is held by gripping the machine body and the handle, and the handle is fixed and protrudes from the side of the machine body. As a result, when placing the grinding machine, the protruding handle easily causes the placement space to be limited and the storage effect cannot be achieved.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a door panel grinding machine for steel door processing, comprising:

[0006] The machine body includes a grinding machine body, a grinding head is fixedly connected to the surface of the grinding machine body, a handle and a grinding wheel cover are installed on the surface of the grinding head, and a grinding wheel is rotatably connected to the surface of the grinding head;

[0007] The rotating mechanism includes a fixed plate, which is fixedly connected to the surface of the grinding head. A movable block is fixedly connected to the surface of the handle. The fixed plate has a rotating hole and an insertion hole. A rotating block is fixedly connected to the surface of the movable block. A storage groove and a through hole are opened on the surface of the movable block. A support spring and a partition are movably connected to the surface of the storage groove. A protrusion is fixedly connected to the surface of the partition.

[0008] Preferably, there are two sets of fixed plates and rotating blocks. The two sets of fixed plates are attached to both sides of the movable block, and the two sets of rotating blocks are fixedly connected to both sides of the movable block. The diameter of the rotating hole is the same as the diameter of the rotating block, and the rotating block is rotatably connected to the surface of the rotating hole.

[0009] Preferably, the diameter of the insertion hole and the diameter of the through hole are the same, the surface of the storage slot is cylindrical, and two sets of through holes are provided, with the two sets of through holes located on both sides of the storage slot.

[0010] Preferably, the two ends of the support spring are fixedly connected to the surface of the partition, and the partition is provided in two sets. The two sets of partitions are abutted and connected to both sides of the storage groove. The diameter of the partition is the same as the diameter of the storage groove, and the protrusion is inserted and connected to the surface of the through hole and the insertion hole.

[0011] Preferably, the surface of the grinding wheel cover is provided with a connecting mechanism, the connecting mechanism including a connecting plate, the connecting plate is installed on the surface of the grinding machine body and the grinding wheel cover, the surface of the grinding machine body is fixedly connected with a threaded block, the surface of the connecting plate is provided with a connecting hole, the surface of the connecting plate is abutted and connected with a nut, and the surface of the nut is fixedly connected with a turning rod.

[0012] Preferably, one side of the connecting plate is abutted against the surface of the grinding machine body, the other side of the connecting plate is fixedly connected to the outer surface of the grinding wheel cover, and the threaded block is inserted into the surface of the connecting hole.

[0013] Preferably, one end of the threaded block is mounted on the surface of the grinding machine body, and the other end of the threaded block is threaded to the surface of the nut. The outer diameter of the nut is larger than the diameter of the connecting hole. Two sets of the screwing rods are provided, and the two sets of screwing rods are mounted on both sides of the nut.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By separating the handle from the surface of the grinding head and connecting it with the movable block and two sets of fixed plates, the handle can rotate towards the grinding machine body with the rotating block as the center when not in use, so as to avoid the handle protruding from the outside of the grinding machine, thereby achieving the effect of storage and saving space. At the same time, the support spring set in the movable block can achieve the insertion and locking effect of the protrusion and through hole and the insertion hole under the action, and achieve the limitation and fixation of the handle when in use.

[0016] 2. By changing the original method of fixing the grinding wheel cover with bolts or screws to a method of fixing with a connecting mechanism, it is easier for workers to assemble and disassemble the grinding wheel cover without the need for other tools. The disassembly and assembly can be achieved simply by rotating the screw rod, thereby improving the efficiency of workers. At the same time, the curvature of the screw rod surface can improve the comfort of use. Attached Figure Description

[0017] Figure 1 This is a top-view perspective view of the structure of this utility model;

[0018] Figure 2This is a bottom-view perspective view of the structure of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the movable block of this utility model in its first state;

[0020] Figure 4 This is a three-dimensional schematic diagram of the second state structure of the movable block of this utility model;

[0021] Figure 5 This utility model Figure 3 A three-dimensional structural diagram of the central protrusion;

[0022] Figure 6 This is a partial three-dimensional sectional view of the connecting plate of this utility model.

[0023] In the diagram: 1. Grinding machine body; 11. Grinding machine head; 12. Handle; 13. Grinding wheel; 14. Grinding wheel cover; 2. Fixed plate; 21. Movable block; 22. Rotary hole; 23. Rotary block; 24. Insertion hole; 25. Storage slot; 26. Through hole; 27. Support spring; 28. Partition plate; 29. ​​Protrusion; 3. Connecting plate; 31. Threaded block; 32. Connecting hole; 33. Nut; 34. Tightening rod. 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. 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.

[0025] Please see Figure 1-6 One embodiment provided by this utility model:

[0026] A door panel grinding machine for processing steel doors, comprising:

[0027] The machine body includes a grinding machine body 1. A grinding head 11 is fixedly connected to the surface of the grinding machine body 1. A handle 12 and a grinding wheel cover 14 are installed on the surface of the grinding head 11. A grinding wheel 13 is rotatably connected to the surface of the grinding head 11. When using the grinding machine to process the door panel of the steel door, first turn on the power of the grinding machine and hold the grinding machine body 1 and the handle 12 so that the grinding wheel 13 rotates to grind the uneven parts of the door panel edge after cutting. The sparks and debris produced during the grinding process will be blocked by the action of the grinding wheel cover 14 to avoid injury to the workers. The grinding machine is an existing structure and will not be described in detail here.

[0028] The rotating mechanism includes a fixed plate 2, which is fixedly connected to the surface of the grinding head 11. A movable block 21 is fixedly connected to the surface of the handle 12. The fixed plate 2 has a rotating hole 22 and an insertion hole 24. A rotating block 23 is fixedly connected to the surface of the movable block 21. A storage groove 25 and a through hole 26 are provided on the surface of the storage groove 25. A support spring 27 and a partition 28 are movably connected to the surface of the storage groove 25. A protrusion 29 is fixedly connected to the surface of the partition 28. With the connection of the movable block 21 and the two sets of fixed plates 2, the handle 12 can be installed on the surface of the grinding head 11, so that the disassembled handle 12 can be connected to the grinding head 11. The distance between the two sets of fixed plates 2 is the same as the thickness of the movable block 21.

[0029] Furthermore, two sets of fixed plates 2 and rotating blocks 23 are provided. The two sets of fixed plates 2 are attached to both sides of the movable block 21, and the two sets of rotating blocks 23 are fixedly connected to both sides of the movable block 21. The diameter of the rotating hole 22 is the same as the diameter of the rotating block 23. The rotating block 23 is rotatably connected to the surface of the rotating hole 22. With the connection between the rotating hole 22 and the rotating block 23, the handle 12 and the movable block 21 can rotate together around the rotating block 23 as the center, thereby realizing the rotation and storage of the handle 12. The connection between the rotating hole 22 and the rotating block 23 will produce a damping effect.

[0030] Furthermore, the diameter of the insertion hole 24 is the same as the diameter of the through hole 26, the surface of the storage groove 25 is cylindrical, and two sets of through holes 26 are provided. The two sets of through holes 26 are located on both sides of the storage groove 25. The protrusion 29 can be installed through the insertion hole 24 and the through hole 26, while the support spring 27 and the partition 28 can be installed through the storage groove 25.

[0031] Furthermore, the two ends of the support spring 27 are fixedly connected to the surface of the partition 28. There are two sets of partitions 28, which are abutted and connected to both sides of the storage groove 25. The diameter of the partition 28 is the same as the diameter of the storage groove 25. The protrusion 29 is inserted and connected to the surface of the through hole 26 and the insertion hole 24. Under the action of the support spring 27, a supporting force can be applied to the surface of the two sets of partitions 28, and the partitions 28 and the protrusion 29 always tend to move towards the fixed plate 2. The support spring 27 and the protrusion 29 can be connected through the partition 28 and their effects can be transmitted to each other. With the protrusion 29 inserted into the through hole 26 and the insertion hole 24, the handle 12 can be limited and fixed during use.

[0032] Furthermore, the surface of the grinding wheel cover 14 is provided with a connecting mechanism, which includes a connecting plate 3. The connecting plate 3 is installed on the surface of the grinding machine body 1 and the grinding wheel cover 14. A threaded block 31 is fixedly connected to the surface of the grinding machine body 1. A connecting hole 32 is opened on the surface of the connecting plate 3. A nut 33 is abutted to the surface of the connecting plate 3. A turning rod 34 is fixedly connected to the surface of the nut 33. The surface of the turning rod 34 is arc-shaped and the cross-section is circular, which makes it more comfortable for the operator to operate it.

[0033] Furthermore, one side of the connecting plate 3 is abutted against the surface of the grinding machine body 1, and the other side of the connecting plate 3 is fixedly connected to the outer surface of the grinding wheel cover 14. The threaded block 31 is inserted into the surface of the connecting hole 32. The cross section of the connecting plate 3 is "L" shaped, and the connection between the grinding wheel cover 14 and the grinding machine body 1 can be realized through the connecting plate 3, so that the grinding wheel cover 14 can be placed on the surface of the grinding head 11 and located at the grinding wheel 13. Under the action of the connecting hole 32, the connection between the connecting plate 3 and the threaded block 31 can be realized, and the threaded block 31 is connected to the surface of the connecting plate 3 through the connecting hole 32.

[0034] Furthermore, one end of the threaded block 31 is installed on the surface of the grinding machine body 1, and the other end of the threaded block 31 is connected to the surface of the nut 33 by threads. The outer diameter of the nut 33 is larger than the diameter of the connecting hole 32. Two sets of turning rods 34 are provided, and the two sets of turning rods 34 are installed on both sides of the nut 33. With the connection of the threaded block 31, the connecting hole 32, and the nut 33, the connecting plate 3 can be limited and fixed on the surface of the grinding machine body 1, and then the grinding wheel cover 14 can be installed on the surface of the grinding head 11. The two sets of turning rods 34 make it more convenient for the operator to rotate the nut 33.

[0035] Working principle: When the operator is not using the handle 12, the two protrusions 29 on both sides are pressed down to move into the storage slot 25 through the through hole 26, and the two sets of partitions 28 slide on the surface of the storage slot 25 and move closer to each other. The support spring 27 is in a compressed state. When the protrusions 29 lose their plug-in engagement with the insertion hole 24, the handle 12 is moved towards the side of the grinder body 1 and rotated around the rotating block 23. The rotating block 23 is damped and rotated on the surface of the rotating hole 22, thereby completing the rotation and storage of the handle 12 to save space for the grinder.

[0036] When installing the grinding wheel cover 14 on the grinder, first place it at the bottom of the grinder head 11 and align the connecting hole 32 on the connecting plate 3 with the threaded block 31, so that the threaded block 31 is inserted into the connecting hole 32 and passes through the surface of the connecting plate 3. Then align the inside of the nut 33 with the threaded block 31 and rotate the two sets of screwing rods 34 so that the nut 33 is connected to the threaded block 31 through the thread and presses against the surface of the connecting plate 3 after tightening. At this time, the grinding wheel cover 14 can block the grinding wheel 13 from approaching the side of the grinder body 1, so as to protect the workers.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A door plate polisher for steel door processing, characterized by, include: The machine body includes a grinding machine body (1), a grinding head (11) is fixedly connected to the surface of the grinding machine body (1), a handle (12) and a grinding wheel cover (14) are installed on the surface of the grinding head (11), and a grinding wheel (13) is rotatably connected to the surface of the grinding head (11). The rotating mechanism includes a fixed plate (2), which is fixedly connected to the surface of the grinding head (11). A movable block (21) is fixedly connected to the surface of the handle (12). A rotating hole (22) and an insertion hole (24) are provided on the surface of the fixed plate (2). A rotating block (23) is fixedly connected to the surface of the movable block (21). A storage groove (25) and a through hole (26) are provided on the surface of the movable block (21). A support spring (27) and a partition (28) are movably connected to the surface of the storage groove (25). A protrusion (29) is fixedly connected to the surface of the partition (28).

2. The door plate polisher for processing steel door according to claim 1, characterized in that: The fixed plate (2) and the rotating block (23) are provided in two sets. The two sets of fixed plates (2) are attached to both sides of the movable block (21), and the two sets of rotating blocks (23) are fixedly connected to both sides of the movable block (21). The diameter of the rotating hole (22) is the same as the diameter of the rotating block (23), and the rotating block (23) is rotatably connected to the surface of the rotating hole (22).

3. The door panel grinding machine for steel door processing according to claim 1, characterized in that: The diameter of the insertion hole (24) is the same as the diameter of the through hole (26). The surface of the storage groove (25) is cylindrical. There are two sets of through holes (26), and the two sets of through holes (26) are located on both sides of the storage groove (25).

4. A door panel grinding machine for processing steel doors according to claim 1, characterized in that: The two ends of the support spring (27) are fixedly connected to the surface of the partition (28). The partition (28) is provided in two sets. The two sets of partitions (28) are abutted and connected to both sides of the storage groove (25). The diameter of the partition (28) is the same as the diameter of the storage groove (25). The protrusion (29) is inserted and connected to the surface of the through hole (26) and the insertion hole (24).

5. A door panel grinding machine for processing steel doors according to claim 1, characterized in that: The surface of the grinding wheel cover (14) is provided with a connecting mechanism, which includes a connecting plate (3). The connecting plate (3) is installed on the surface of the grinding machine body (1) and the grinding wheel cover (14). A threaded block (31) is fixedly connected to the surface of the grinding machine body (1). A connecting hole (32) is opened on the surface of the connecting plate (3). A nut (33) is abutted to the surface of the connecting plate (3). A turning rod (34) is fixedly connected to the surface of the nut (33).

6. A door panel grinding machine for processing steel doors according to claim 5, characterized in that: One side of the connecting plate (3) is abutted against the surface of the grinding machine body (1), and the other side of the connecting plate (3) is fixedly connected to the outer surface of the grinding wheel cover (14). The threaded block (31) is inserted into the surface of the connecting hole (32).

7. A door panel grinding machine for processing steel doors according to claim 6, characterized in that: One end of the threaded block (31) is installed on the surface of the grinding machine body (1), and the other end of the threaded block (31) is connected to the surface of the nut (33) by a thread. The outer diameter of the nut (33) is larger than the diameter of the connecting hole (32). Two sets of the screwing rod (34) are provided, and the two sets of screwing rods (34) are installed on both sides of the nut (33).