Anti-splashing metal polishing protective cover structure

By designing a splash-proof metal grinding protective cover structure on the angle grinder, and using rotatable baffles and mesh baffles to block sparks, the problem of spark splashing in the existing technology is solved, and safety and stability are improved.

CN224102603UActive Publication Date: 2026-04-10NANTONG JINKAIWEI METAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The protective covers of existing angle grinders cannot effectively block the radial sparks generated during grinding, posing a safety hazard.

Method used

A splash-proof metal grinding protective cover structure was designed, including a connector and a blocking component. The connector is installed on the angle grinder, and the blocking component consists of a rotatable baffle. The baffle can be adjusted in angle to block sparks. The connector is fixed to the machine housing by a connecting rod, and the baffle can form a grid to dissipate the kinetic energy of the sparks.

Benefits of technology

It effectively blocks sparks, reduces safety hazards, improves connection stability, consumes the kinetic energy of sparks, and reduces the impact on other work areas.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224102603U_ABST
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Abstract

The utility model discloses an anti-splashing metal polishing protective cover structure. The anti-splashing metal grinding protective cover structure comprises a connecting piece installed on an angle grinder and a blocking piece installed on the connecting piece and used for blocking sparks from splashing. The connecting piece comprises a connecting piece installed at the lower end of the machine shell, a protective cover is arranged at the lower end of the connecting piece, and the protective cover is located on the periphery of the grinding wheel. The blocking piece comprises a blocking strip which is rotatably installed on the connecting piece, and the blocking strip has a certain height. According to the anti-splashing metal polishing protective cover structure, the effect of blocking sparks is achieved by arranging the blocking strips, and the situation that the sparks splash to other working areas to generate potential safety hazards is avoided; a worker can adjust the blocking strip to a proper angle according to the use habit of the worker so that the blocking strip can have a certain blocking function on sparks in different directions.
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Description

TECHNICAL FIELD

[0001] The utility model relates to metal polishing technical field especially relates to a prevent splashing metal polishing shield structure. BACKGROUND

[0002] The angle grinder is a kind of powerful electric tool, is widely used in metal processing field. It can effectively polish, cut and derust metal by high-speed rotating grinding wheel, when polishing metal, the grinding wheel sheet equipped with angle grinder can quickly remove the rust and oxide on the surface of metal, make the metal surface become smooth and even, thereby improve the quality and aesthetic degree of metal product.

[0003] When operating, worker needs to hold handle tightly with both hands, after starting, carries out operation again when grinding wheel is stable, and notice wearing protective goggles and suitable protective clothing, to ensure safety, angle grinder is widely applied in various factories and construction sites due to its efficient, flexible characteristics, significantly improves the working efficiency and accuracy of metal processing, becomes the indispensable important tool of metal processing.

[0004] The angle grinder shield of prior art is used for the protection of grinding wheel sheet burst, when angle grinder works, grinding wheel sheet and metal surface contact produce a large number of radial sparks along the tangent direction of grinding wheel sheet, and the shield cannot effectively block.

[0005] Therefore, it is necessary to provide a prevent splashing metal polishing shield structure to solve the above technical problems. CONTENT OF UTILITY MODEL

[0006] In view of the above situation, in order to overcome the defects of prior art, the utility model provides a prevent splashing metal polishing shield structure can block the radial sparks generated in the polishing process.

[0007] To achieve the above object, the utility model employs the following technical scheme:

[0008] The prevent splashing metal polishing shield structure includes: connecting piece installed on angle grinder and blocking piece installed on connecting piece for blocking sparks splashing;

[0009] The connecting piece includes connecting sheet installed on the lower end of the casing, the lower end of the connecting sheet is equipped with shield, and the shield is located at the periphery of the grinding wheel sheet;

[0010] The blocking piece includes baffle strip rotatably installed on the connecting sheet, and the baffle strip has a certain height;

[0011] The baffle strip adjustment angle can block the sparks generated by the friction between grinding wheel and metal piece surface.

[0012] Preferably, the connecting sheet is connected with the casing through connecting rod.

[0013] Preferably, the blocking strip is composed of several horizontal strips and several vertical strips perpendicular to the horizontal strips.

[0014] Preferably, the connecting piece is detachably mounted on the casing.

[0015] Preferably, the lower end of the connecting piece is provided with a ring hoop, the ring hoop is a C-shaped structure, a butt joint seat is arranged on the ring hoop, and the butt joint seat is connected through a second bolt.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1) The utility model discloses a blocking strip is arranged to realize the effect of blocking the sparks, prevents the sparks from splashing to other work areas and produces the security risk, in addition, the staff can adjust the blocking strip to the proper angle according to the use habit of oneself, so that the blocking strip can have certain blocking function to the sparks in different directions, and after use, the blocking strip is rotated to the direction parallel to the angle grinder and is stored.

[0018] (2) The utility model discloses a connecting rod is arranged on the connecting piece to further fix the connecting piece with the casing, and the connection stability is improved.

[0019] (3) The utility model discloses a grid-shaped blocking strip can consume part of the kinetic energy of the sparks, changes the flying direction of the sparks, and thus reduces the influence of the sparks on other work areas. DRAWINGS

[0020] Figure 1 The utility model provides a structure schematic view of the anti-splashing metal polishing protective cover structure and the angle grinder.

[0021] Figure 2 The utility model provides a structure schematic view of the anti-splashing metal polishing protective cover structure first visual angle.

[0022] Figure 3 The utility model provides a structure schematic view of the anti-splashing metal polishing protective cover structure second visual angle.

[0023] Figure 4 The utility model provides a structure schematic view of the anti-splashing metal polishing protective cover structure second visual angle. Figure 3 The utility model provides a structure schematic view of the anti-splashing metal polishing protective cover structure second visual angle.

[0024] Wherein, the name corresponding to the reference sign is: 10, connecting piece;11, casing;12, connecting piece;121, ring hoop;122, butt joint seat;123, second bolt;13, connecting rod;131, first bolt;14, protective cover;20, blocking piece;21, blocking strip;211, horizontal strip;212, vertical strip;22, rotating shaft;221, threaded section;222, nut. DETAILED DESCRIPTION

[0025] The utility model is further illustrated below by combining with the drawings and examples, and the mode of the utility model includes but is not limited to the following examples.

[0026] The angle grinder is commonly used for the polishing work of the metal plate surface, and its main working part is the grinding wheel piece rotating at high speed at the end thereof, and a semicircular protective cover is installed on the periphery of the grinding wheel piece, and the design purpose of the protective cover is to block the fragments when the grinding wheel piece breaks, therefore, during the work, the protective cover should be placed on the side close to the user, and the exposed part of the grinding wheel piece on the other side is used for contacting the metal plate, the inventor finds that the high-speed rotating grinding wheel piece generates sparks along the tangent direction of the grinding wheel piece at the contacting part with the metal plate, and the contacting point is the exposed position that the protective cover cannot protect, therefore, the sparks can be sprayed to other working areas, the temperature of the sparks is high, and there is a great hidden danger of fire safety, and if the angle grinder can prevent the sparks from flying out during the work, it is beneficial to the safety production of the working area.

[0027] First embodiment:

[0028] As Figures 1-3 shown, the anti-spraying metal polishing protective cover structure provided by the utility model comprises a connecting piece 10 installed on the angle grinder, the connecting piece 10 is shaped as Figure 1 shown, is located on the periphery of the motor rotating shaft at the output end of the angle grinder, and a blocking piece 20 is installed on the connecting piece 10 and used for blocking the flying sparks;

[0029] Specifically, the connecting piece 10 comprises a connecting plate 12 installed at the lower end of a machine shell 11, the machine shell 11 refers to the shell of the output end part of the angle grinder, and is shaped as Figure 2 shown, the connecting plate 12 is a left-right symmetrical plate, a through hole is arranged at the middle part of the connecting plate 12 and used for being nested at the lower end of the machine shell 11 and being threadedly connected with the machine shell 11, the connecting plate 12 and the machine shell 11 are connected in this way, and the connecting plate 12 and the machine shell 11 can also be fixedly connected in a welding mode, a semicircular protective cover 14 is welded at the lower end of the connecting plate 12, the protective cover 14 is consistent with the prior art, is located on the periphery of the grinding wheel piece and is used for preventing the grinding wheel piece from breaking and hurting people;

[0030] The blocking piece 20 comprises a blocking strip 21 rotatably installed on the connecting plate 12, the blocking strip 21 is horizontally arranged in a strip shape and has a certain height, a rotating shaft 22 is fixedly installed at one end of the blocking strip 21 close to the connecting plate 12, a threaded through hole is formed in the surface of the connecting plate 12 and used for the rotating shaft 22 to pass through, the upper end of the rotating shaft 22 is a threaded section 221 matched with the threaded through hole, the threaded section 221 is threadedly connected with the threaded through hole, a nut 222 is sleeved on the upper end of the threaded section 221, and the threaded section 221 at the upper end of the rotating shaft 22 is used for being rotatable in the threaded hole, therefore, when the position of the blocking strip 21 is determined, the nut 222 is rotated to prevent the rotating shaft 22 from further rotating, so that the position of the blocking strip 21 is fixed;

[0031] As Figure 2As shown, when the sparks generated by the friction between the grinding wheel and the surface of the metal part radiate in the direction indicated by the arrow in the figure, rotate the stop bar 21 to adjust its direction so that its axis is perpendicular to the body of the angle grinder. In this way, the stop bar 21 can block the sparks in front of it.

[0032] By setting the baffle 21, the sparks can be blocked, preventing them from splashing into other work areas and causing safety hazards. In addition, the staff can adjust the baffle 21 to a suitable angle according to their own usage habits so that it can block sparks from different directions. After use, it can be rotated to a direction parallel to the angle grinder for storage.

[0033] Second embodiment:

[0034] like Figure 2 As shown, the connecting piece 12 is connected to the housing 11 via the connecting rod 13. Both ends of the connecting rod 13 are provided with through holes, and first bolts 131 are installed in the through holes. One of the first bolts 131 is installed in the threaded hole on the housing 11, and the other first bolt 131 is installed in the threaded hole on the surface of the connecting piece 12. In this way, the connecting rod 13 connects and fixes the connecting piece 12 to the housing 11.

[0035] By installing a connecting rod 13 on the connecting piece 12, it is further fixed to the housing 11, thereby improving the connection stability.

[0036] Third embodiment:

[0037] like Figure 4 As shown, the baffle 21 consists of four horizontal bars 211 and several vertical bars 212 perpendicular to the horizontal bars 211. The horizontal bars 211 are arranged parallel in the vertical direction, and the vertical bars 212 are arranged parallel in the horizontal direction. The two are perpendicular to each other and intersect to form a grid structure that is open at both ends. When the baffle 21 is adjusted to be in a non-perpendicular relationship with the direction of the sparks, the sparks enter the grid structure formed by the horizontal bars 211 and the vertical bars 212. The sparks are essentially high-temperature gravel or metal particles. After colliding with the inner wall of the grid, they bounce off and then collide with the inner wall of the grid again. The back-and-forth collisions consume the kinetic energy of the particles until they stop moving. It should be noted that the width of the baffle 21 in the figure is only for illustration.

[0038] By setting up grid-like baffles 21, some of the Martian's kinetic energy can be consumed, changing its flight direction and thus reducing the impact of the Martian on other work areas.

[0039] Fourth embodiment:

[0040] This embodiment represents another possible way to mount the connecting piece 12 onto the housing 11, such as... Figure 3As shown, the ring hoop 121 is welded at the upper edge of the through hole in the middle of the connecting piece 12, the ring hoop 121 is a C-shaped structure, the edges of the left and right connecting pieces 12 are also non-closed structures, the ring hoop 121 has a notch at the corresponding position with the connecting piece 12, the notches on the ring hoop 121 are respectively welded with an abutment seat 122, the abutment seat 122 is connected through the second bolt 123, when the second bolt 123 rotates in the threaded hole on the abutment seat 122, the ring hoop 121 is tightened, so that the connecting piece 12 can be quickly mounted on the shell 11.

[0041] In use, first, the angle of the baffle 21 is adjusted according to the direction of the sparks generated by the contact between the grinding wheel piece and the metal plate, so that the baffle 21 can be blocked in front of the sparks, so as to Figure 2 The use state is used as the standard, then the angle of the angle grinder is kept and the angle grinder is moved from left to right to grind the metal plate.

[0042] The above embodiment is only one of the preferred embodiments of the utility model, and should not be used to limit the protection scope of the utility model, but any insignificant modification or polishing made in the main design idea and spirit of the utility model, the technical problems solved are still consistent with the utility model, and should be included in the protection scope of the utility model.

Claims

1. A splash guard structure for a metal polishing process, the structure comprising: The application relates to a connecting piece (10) mounted on an angle grinder and a blocking piece (20) mounted on the connecting piece (10) for blocking sparks. The connecting piece (10) comprises a connecting plate (12) mounted on the lower end of a machine shell (11), and a protective cover (14) is arranged on the lower end of the connecting plate (12) and located on the periphery of a grinding wheel plate. The blocking piece (20) comprises a blocking strip (21) rotatably mounted on the connecting plate (12), and the blocking strip (21) has a certain height. The blocking strip (21) can adjust the angle to block sparks generated by the friction between the grinding wheel and the surface of a metal piece. The connecting plate (12) is connected with the machine shell (11) through a connecting rod (13).

2. The splash guard metal polishing shield structure of claim 1, wherein, The blocking strip (21) is composed of a plurality of horizontal strips (211) and a plurality of vertical strips (212) perpendicular to the horizontal strips (211).

3. The splash guard metal polishing shield structure of claim 1, wherein, The connecting plate (12) is detachably mounted on the machine shell (11).

4. The splash guard metal polishing shield structure of claim 1, wherein, The lower end of the connecting plate (12) is provided with a ring hoop (121), the ring hoop (121) is a C-shaped structure, a butt joint seat (122) is arranged on the ring hoop (121), and the butt joint seat (122) is connected through a second bolt (123).

5. The splash guard metal polishing shield structure of claim 4, wherein, ​