High-safety angle grinder
By designing a detachable protective plate and protective cover connection structure on the angle grinder, combined with the use of magnets and rubber blocks, the problem of protective cover damage due to sparks and particles is solved, improving the safety and maintenance convenience of the angle grinder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-31
AI Technical Summary
Existing angle grinder protective covers are prone to sparks or high particle loss during use due to high-speed cutting, resulting in insufficient safety.
A high-safety angle grinder was designed, which adopts a detachable connection structure between the protective plate and the protective cover. The protective plate is conveniently installed and fixed by using components such as connecting rods, protrusions, push blocks and turntables on the protective plate. The design of magnets and rubber blocks enhances the protective effect, and iron filings are collected by the skirt and magnets to prevent them from flying.
It improves the service life and safety of the protective cover, simplifies the replacement and maintenance process of the protective plate, and enhances the convenience and safety of use.
Smart Images
Figure CN224059481U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power tool technology, and in particular relates to a high-safety angle grinder. Background Technology
[0002] An angle grinder, also known as a grinding machine or disc grinder, is an abrasive tool used for cutting and polishing fiberglass. It is a handheld power tool primarily used for cutting, grinding, and brushing metals and stone.
[0003] Angle grinders typically have a protective cover at the slicing area. During use, sparks or particles may fly out along the circumferential direction of the high-speed rotating slice, resulting in high wear and tear on the protective cover. Utility Model Content
[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0005] In order to overcome the shortcomings of the prior art, this utility model provides a high-safety angle grinder.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-safety angle grinder, comprising a machine body, a saw blade, and a protective cover. One end of the machine body is provided with a connecting end and an output shaft. The saw blade is connected to the output shaft, and the protective cover is connected to the connecting end. The machine body is provided with a handle, which is located on one side of the connecting end. A protective sheet is provided inside the protective cover, which is attached to the inner wall of the protective cover and can be detached and connected inside the protective cover.
[0007] Furthermore, the protective plate is provided with a first connecting rod, and the protective cover is provided with a slot corresponding to the first connecting rod.
[0008] Furthermore, the protective cover has protrusions on its sidewalls, and the protrusions are located on the slotted sidewalls. The first connecting rod has a positioning block. When the protective plate is inside the protective cover, the positioning block abuts against the protrusions.
[0009] Furthermore, the first connecting rod is provided with a first movable groove, a fixed block is provided in the first movable groove, a spring is provided on the fixed block, one end of the spring is connected to the inner wall of the first movable groove, and a fixed groove corresponding to the fixed block is provided on the protrusion.
[0010] Furthermore, a second movable groove is provided on the side wall of the first movable groove, the second movable groove is connected to the first movable groove, and a push block is provided in the second movable groove, the push block is provided with an inclined surface.
[0011] Furthermore, there are two first movable slots and two second movable slots. The two second movable slots are connected by a connecting cavity. The push blocks in the two second movable slots are connected by a second connecting rod. The second connecting rod is provided with a push rod. The side wall of the connecting cavity is provided with a through cavity. The push rod passes through the through cavity.
[0012] Furthermore, a groove is provided at one end of the cavity, and a turntable is rotatably connected to one end of the push rod. A limiting groove is provided on the side wall of the groove, a limiting block is provided on the turntable, and an opening corresponding to the limiting block is provided on the side wall of the limiting groove.
[0013] Furthermore, the turntable is provided with raised strips, the direction of which corresponds to the position of the limit block.
[0014] Furthermore, the protective cover has a through hole on its side wall, and a rotating rod is rotatably connected inside the through hole. One end of the rotating rod is equipped with a rubber block, and the protective plate has a clearance groove on its side wall.
[0015] Furthermore, the inner wall of the protective cover is provided with a mounting groove, and a magnet is installed in the mounting groove. The protective sheet is made of magnetic metal; the bottom of the protective sheet is turned up to form a skirt.
[0016] The advantage of this utility model is that it provides a high-safety angle grinder that provides protection for the protective cover and facilitates the replacement of the protective plate. Attached Figure Description
[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0018] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0019] In the attached diagram:
[0020] Figure 1 This is a schematic diagram of the structure of a high-safety angle grinder in one embodiment of the present invention.
[0021] Figure 2 for Figure 1 A schematic diagram of the protective cover for the high-safety angle grinder in the illustrated embodiment.
[0022] Figure 3 for Figure 1 A cross-sectional view of the first connecting rod of the high-safety angle grinder in the illustrated embodiment.
[0023] Figure 4 for Figure 3 Enlarged view of point A in the image.
[0024] Figure 5 for Figure 1 A cross-sectional view of the fixing block of the high-safety angle grinder in the illustrated embodiment.
[0025] Figure 6 for Figure 5 Enlarged view of point B in the image.
[0026] Figure 7 for Figure 1 A cross-sectional view of the magnet of the high-safety angle grinder in the illustrated embodiment.
[0027] Figure 8 for Figure 7 Enlarged view of point C in the image.
[0028] Figure 9 for Figure 1 A cross-sectional view of the rotating rod of the high-safety angle grinder in the illustrated embodiment.
[0029] Figure 10 for Figure 9 Enlarged view of point D in the image.
[0030] The meanings of the reference numerals in the figure are as follows:
[0031] 101. Machine body; 102. Saw blade; 103. Protective cover; 104. Handle; 105. Metal connecting ring; 106. Protrusion; 107. Rotating rod; 1071. Rubber block; 108. Protective plate; 1081. Skirt; 1082. Relief groove; 109. Push rod; 110. Turntable; 1101. Protrusion; 1102. Limiting block; 111. Fixing block; 112. Spring; 113. Push block; 114. Second connecting rod; 115. Magnet; 116. First connecting rod; 1161. Positioning block; 1162. Limiting groove; 1163. Opening. Detailed Implementation
[0032] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0033] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0034] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0035] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0036] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.
[0037] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0038] like Figure 1-10 As shown, a high-safety angle grinder includes a body 101, a saw blade 102, and a protective cover 103. One end of the body 101 has a connecting end and an output shaft. The saw blade 102 is connected to the output shaft, and the protective cover 103 is connected to the connecting end. The connecting end has a cylindrical structure. A metal connecting ring 105 is provided on the top of the protective cover 103. An adjusting screw is provided on the metal connecting ring 105 to adjust its tightness, thereby connecting the protective cover 103 to the connecting end. A handle 104 is provided on the body 101. 104 is located on one side of the connection end; the handle 104 allows the user to hold the machine body 101 with one hand and the handle 104 with the other, increasing the stability of the angle grinder; a protective plate 108 is provided inside the protective cover 103, which is attached to the inner wall of the protective cover 103. The protective plate 108 is detachably connected to the inside of the protective cover 103, and the protective plate 108 acts as the inner wall of the protective cover 103, thus protecting the protective cover 103 without the need for frequent replacement, making the maintenance of the protective cover 103 more convenient.
[0039] Furthermore, the protective plate 108 is provided with a first connecting rod 116, and the protective cover 103 is provided with a slot corresponding to the first connecting rod 116.
[0040] The protective cover 103 has a protrusion 106 on its side wall, and the protrusion 106 is located on the slotted side wall. The first connecting rod 116 has a positioning block 1161. When the protective plate 108 is inside the protective cover 103, the positioning block 1161 abuts against the protrusion 106.
[0041] The first connecting rod 116 is provided with a first movable groove, and a fixing block 111 is provided in the first movable groove. A spring 112 is provided on the fixing block 111, and one end of the spring 112 is connected to the inner wall of the first movable groove. The protrusion 106 is provided with a fixing groove corresponding to the fixing block 111.
[0042] The first movable groove has a second movable groove on its side wall. The second movable groove is connected to the first movable groove. The second movable groove has a push block 113 inside, and the push block 113 has an inclined surface.
[0043] There are two first movable slots and two second movable slots. The two second movable slots are connected by a connecting cavity. The push blocks 113 in the two second movable slots are connected by a second connecting rod 114. The second connecting rod 114 is provided with a push rod 109. The side wall of the connecting cavity is provided with a through cavity, and the push rod 109 passes through the through cavity.
[0044] One end of the cavity is provided with a groove, and one end of the push rod 109 is rotatably connected to a turntable 110. A limiting groove 1162 is provided on the side wall of the groove, and a limiting block 1102 is provided on the turntable 110. An opening 1163 corresponding to the limiting block 1102 is provided on the side wall of the limiting groove 1162. A protrusion 1101 is provided on the turntable 110, and the setting direction of the protrusion 1101 corresponds to the setting position of the limiting block 1102.
[0045] The positioning block 1161 and protrusion 106 facilitate the positioning of the protective plate 108, allowing it to be installed in the designated position. The first connecting rod 116 makes it easier to push the protective plate 108, facilitating its assembly and disassembly. When the push block 113 is not inserted into the first movable groove, the spring 112 pulls the fixing block 111 into the first movable groove. When the first connecting rod 116 moves to the top of the groove, the fixing block 111 is on one side of the groove. Pushing the push rod 109 towards the first connecting rod 116 causes the push rod 109 to move the push block 113 into the first movable groove, where the push block 113 rests against... The fixing block 111 is pushed out of the first movable groove by the end face of the fixing block 111, so that the fixing block 111 is inserted into the fixing groove to fix the first connecting rod 116, thereby fixing the protective plate 108 in the protective cover 103; after the fixing block 111 is inserted into the fixing groove, the turntable 110 enters the groove, and the limiting block 1102 enters the limiting groove 1162 from the opening 1163. The turntable 110 is rotated so that the limiting block 1102 is offset from the opening 1163 to fix the push rod 109; the direction of the protrusion 1101 is set and the position of the limiting block 1102 is determined by the protrusion 1101, making the use of the angle grinder more convenient.
[0046] Furthermore, the protective cover 103 has a through hole on its side wall, and a rotating rod 107 is rotatably connected inside the through hole. One end of the rotating rod 107 has a rubber block 1071, and the protective plate 108 has a relief groove 1082 on its side wall, which extends to the top of the protective plate 108. The rubber block 1071 is eccentrically positioned on the end face of the rotating rod 107. When the protective plate 108 is not installed in the protective cover 103, rotating the rotating rod 107 causes the rubber block 1071 to be positioned close to the top of the protective cover 103. When the protective sheet 108 is rotated into the protective cover 103, the rubber block 1071 is in the relief groove 1082, so that the entire protective sheet 108 can be put into the protective cover 103. After the fixing block 111 fixes the protective sheet 108, the rotating rod 107 is rotated so that the rubber block 1071 rotates out from the relief groove 1082 and abuts against the side wall of the protective sheet 108, which plays an auxiliary fixing role for both ends of the protective sheet 108 and improves the connection effect between the protective sheet 108 and the protective cover 103.
[0047] Furthermore, the inner wall of the protective cover 103 is provided with an installation groove, and a magnet 115 is provided in the installation groove. The protective plate 108 is made of magnetic metal. The bottom of the protective plate 108 is turned up to form a skirt 1081. The setting of the magnet 115 further enhances the connection effect between the protective plate 108 and the protective cover 103. At the same time, the magnet 115 makes the protective plate 108 magnetic, so that the protective plate 108 collects iron filings and prevents iron filings from flying and injuring the operator. The skirt 1081 is made to provide iron filings and prevent iron filings from slipping off the protective plate 108. When there are a lot of iron filings on the protective plate 108, the maintenance of the protective cover 103 can be quickly completed by simply replacing the protective plate 108, which is convenient to use.
[0048] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A high safety angle grinder, comprising a machine body, a saw blade and a protective cover, one end of the machine body is provided with a connecting end and an output shaft, the saw blade is connected to the output shaft, the protective cover is connected to the connecting end, a handle is arranged on the machine body, and the handle is located on one side of the connecting end; characterized in that: The protective cover is provided with a protective sheet which is attached to the inner wall of the protective cover and detachably connected to the protective cover. 2. The high security angle grinder of claim 1, wherein: The protective sheet is provided with a first connecting rod, and the protective cover is provided with a slot corresponding to the first connecting rod.
3. The high security angle grinder of claim 2, wherein: The sidewall of the protective cover is provided with a protrusion which is located on the sidewall of the slot, and the first connecting rod is provided with a positioning block; when the protective sheet is located in the protective cover, the positioning block abuts against the protrusion.
4. The high security angle grinder of claim 3, wherein: The first connecting rod is provided with a first movable slot, and the first movable slot is provided with a fixing block, the fixing block is provided with a spring, one end of the spring is connected to the inner wall of the first movable slot, and the protrusion is provided with a fixing slot corresponding to the fixing block.
5. The high security angle grinder of claim 4, wherein: The sidewall of the first movable slot is provided with a second movable slot, the second movable slot is communicated with the first movable slot, the second movable slot is provided with a push block, and the push block is provided with an inclined surface.
6. The high security angle grinder of claim 5, wherein: The first movable slot and the second movable slot are both two, two second movable slots are connected through a connecting cavity, the push blocks in the two second movable slots are connected through a second connecting rod, the second connecting rod is provided with a push rod, the sidewall of the connecting cavity is provided with a through cavity, and the push rod is arranged to pass through the through cavity.
7. The high security angle grinder of claim 6, wherein: One end of the through cavity is provided with a groove, one end of the push rod is rotatably connected with a rotating disc, the sidewall of the groove is provided with a limiting slot, the rotating disc is provided with a limiting block, the sidewall of the limiting slot is provided with an opening corresponding to the limiting block.
8. The high security angle grinder of claim 7, wherein: The rotating disc is provided with a protrusion, and the setting direction of the protrusion corresponds to the setting position of the limiting block.
9. The high security angle grinder of claim 1, wherein: The sidewall of the protective cover is provided with a through hole, the through hole is rotatably connected with a rotating rod, one end of the rotating rod is provided with a rubber block, and the sidewall of the protective sheet is provided with a recess.
10. The high security angle grinder of claim 1, wherein: The inner wall of the protective cover is provided with a mounting slot, the mounting slot is provided with a magnet, the protective sheet is made of a magnetic metal, and the bottom of the protective sheet is upwardly turned to form a skirt. The inner wall of the protective cover is provided with a mounting slot, the mounting slot is provided with a magnet, the protective sheet is made of a magnetic metal, and the bottom of the protective sheet is upwardly turned to form a skirt.