A special grinding wheel machine for slotting pre-operation demonstration and marking with a protective structure and a protective method

Abstract

The present application discloses a special grinding machine for slotting pre-operation demonstration and engraving with a protective structure, which belongs to the field of building decoration technology. It includes a blade, a shielding device is sleeved on the outer side of the blade, the top of the shielding device is fixedly connected to the output end of the grinding machine body, and a fixed handle is arranged at one end of the grinding machine body for the convenience of the staff to control the position of the device; the shielding device includes a fixed cover for protecting the outer side of the blade, two groups of positioning side plates are fixedly connected on both sides of the fixed cover, a group of positioning side plates is slidably connected to the outer side of the slider, the inner side of the slider is fixedly connected to the support structure through a limiting structure, a plastic transparent protective layer is sleeved on the outer side of the support structure, the slider drives the limiting structure to move, and the limiting structure drives the support structure to slide on the inner side of the fixed cover until the plastic transparent protective layer is moved out from the inner side of the fixed cover, and then the support structure changes its shape to open the plastic transparent protective layer sleeved on the outer side to block the dust splashed when the blade is polished.

Description

Technical Field

[0001] The present application relates to the technical field of building decoration, and more specifically, to a special grinding wheel machine for grooving pre-operation demonstration and marking with a protective structure. Background Art

[0002] When renovating a building, construction workers usually need to use a grinding machine to mark the wall before they can carry out renovation operations such as water and electricity modifications. Using a grinding machine to make wall grooves is not only light and quick, but the grooves are also more uniform and cause less damage to the wall.

[0003] Construction workers usually use handheld grinders to complete the grooving and marking work on building walls before water and electricity renovation. Safety protection work when the grinder is working is particularly important. The document with the prior art publication number CN115122202A discloses a handheld grinder. The nozzle of the grinder can spray water on the working surface when the blade grinds the working surface of the part to be derusted, so as to eliminate the sparks generated by the high-speed grinding of the working surface by the blade, and use a bowl-shaped mask to collect the waste water and iron filings generated when the working surface is ground. Regarding the above-mentioned mask, it is found during use that the fixed-shape mask cannot fully block the waste water and dust in actual use, and the bowl-shaped mask will block the construction workers' line of sight, resulting in errors in the marking of the grinder.

[0004] There are other existing special grinding machines for grooving and marking with transparent observation. For example, the existing patent technology CN110394905A involves a wall grooving device for construction. This design can grind the groove while grooving, so that the groove wall can be smooth, and there is no need for subsequent modification of the groove. At the same time, this device is provided with a protective device to protect the grooving operation from the top and bottom, and can protect the cutting spacer, making it safer to use. In addition, a sliding plate of transparent plastic material is also provided to enable observation of the condition of the wall during grooving. However, since the plastic material is small, it will be completely blocked during the grooving operation.

[0005] In view of this, we propose a special grinding wheel machine for slotting pre-operation demonstration and engraving with a protective structure. Summary of the invention

[0006] 1. Technical issues to be solved

[0007] The purpose of the present application is to provide a special grinding machine for grooving pre-operation demonstration and marking with a protective structure to solve the problem of poor protective shielding of the grinding machine mentioned in the above background technology.

[0008] 2. Technical solution

[0009] A special grinding wheel machine for slotting pre-operation demonstration and marking with a protective structure, comprising

[0010] The blade is provided with a shielding device on the outer side of the blade, the top of the shielding device is fixedly connected to the output end of the grinding machine body, and one end of the grinding machine body is provided with a fixed handle for the staff to control the position of the device;

[0011] A fixed cover, wherein the shielding device comprises a fixed cover for protecting one side of the outer side of the blade, two sets of positioning side plates are fixedly connected on both sides of the fixed cover, a slider is slidably connected to the outer side of one set of positioning side plates, the inner side of the slider is fixedly connected to the supporting structure through a limiting structure, and a plastic transparent protective layer that can be freely extended and contracted is provided on the outer side of the supporting structure;

[0012] The movement of the slider drives the limiting structure to move, and the limiting structure drives the supporting structure to slide smoothly on the inside of the fixed cover until the plastic transparent protective layer is moved out from the inside of the fixed cover. Then the supporting structure changes its shape to expand the plastic transparent protective layer on the outside, forming a larger umbrella-shaped shielding plane to block the dust and waste water splashed when the blades are polished.

[0013] The supporting structure moves the plastic transparent protective layer out from the inner side of the fixed cover, and stretches the plastic transparent protective layer moved out from the inner side of the fixed cover into an umbrella shape by changing the angle of the supporting structure itself, forming a blocking plane to block dust splashed when the blades are polished. The large area and multi-angle field of view of the umbrella-shaped plastic transparent protective layer provide a precise reference for grooving position positioning.

[0014] As an optional solution to the technical solution of the present application document, the limiting structure specifically includes a movable plate, a movable plate is fixedly connected to the inner side of the slider, both ends of the movable plate are rotatably connected to limiting wheels, the other side of the movable plate is fixedly connected to a connecting plate, the other side of the connecting plate is fixedly connected to a fixed frame, the other side of the fixed frame is fixedly connected to another group of connecting plates, the other side of the other group of connecting plates is fixedly connected to another group of movable plates, and both ends of the other group of movable plates are rotatably connected to limiting wheels.

[0015] By adopting the above technical solution, the limiting structure can drive the supporting structure to move stably under the restriction of the fixed cover, thereby reducing the friction between the two.

[0016] As an optional solution to the technical solution of the present application document, the support structure specifically includes a fixed plate, and the four corners of the fixed frame close to the fixed cover outlet are fixedly connected with a fixed plate, and the other side of the four groups of fixed plates are rotatably connected to the support rods through a rotating shaft, and the outer side of the four groups of support rods is provided with a plastic transparent protective layer, and the outer side of the rotating shaft is fixedly connected with a gear.

[0017] By adopting the above technical solution, the four groups of support rods can change their angles synchronously, which can drive the plastic transparent protective layer to stretch accordingly, forming a larger shielding plane.

[0018] As an optional solution of the technical solution of the present application document, the fixed cover specifically includes a fixed groove, a fixed groove for the limiting structure to slide smoothly is opened in the middle of the fixed cover, and two groups of tooth plates are symmetrically arranged on both sides of the inner wall of the fixed groove.

[0019] By adopting the above technical solution, the angle of the support structure can be changed when it moves to the tooth plate.

[0020] As an optional solution to the technical solution of the present application document, the positioning side plate has a specific slide groove, and a slide groove is arranged on the inner side of the positioning side plate, and the upper and lower ends of the inner side of the slide groove are rotatably connected with multiple groups of symmetrically arranged circular shafts.

[0021] By adopting the above technical solution, the round shaft can rotate inside the slide groove along with the movement of the limiting wheel, thereby reducing the friction force of the moving plate.

[0022] As an optional solution to the technical solution of the present application document, two groups of symmetrical circular shafts are slidably connected in the middle with limiting wheels.

[0023] By adopting the above technical solution, the limiting wheel and the circular shaft cooperate with each other, so that the movable plate can move freely inside the slide groove.

[0024] As an optional solution of the technical solution of the present application document, the tooth plates are divided into two groups, the upper two groups of tooth plates are meshed and connected with the upper outer side of the gear, and the lower two groups of tooth plates are meshed and connected with the lower outer side of the gear.

[0025] By adopting the above technical solution, the two upper groups of support rods can rotate upward along with the gears, and the two lower groups of support rods can rotate downward along with the gears.

[0026] A protection method for a special grinding wheel machine for slotting pre-operation demonstration and engraving with a protection structure, comprising the following operating steps:

[0027] A. When the slotting pre-operation demonstration and marking special grinding wheel machine with a protective structure is needed, the staff first pushes the slider on the outer side of the positioning side plate. The slider slides along the outer side of the positioning side plate to drive the moving plate fixedly connected to one side to move. The moving plate drives the limiting wheels at both ends to move inside the slide groove. While the limiting wheels move, they cooperate with the rotating circular shaft, so that the fixed frame as a whole can slide inside the fixed groove under the force applied by the moving plate. The movement of the fixed frame drives the support structure to move until the support rod moves out of the inside of the fixed groove;

[0028] B. After the support rods are moved out from the inside of the fixed groove, the staff continues to push the slider until the gears mesh with the toothed plates at the corresponding positions. The two groups of support rods on the top rotate upward with the gears, and the two groups of support rods on the bottom rotate downward with the gears. The four groups of support rods rotate synchronously, driving the transparent plastic protective layer set on the outside to extend, thereby forming a larger shielding plane.

[0029] C. When the support structure is fully unfolded, the staff connects the wires of the grinder body to the power supply and then the grinder body drives the blades to work. The staff controls the fixed handle to perform the grooving operation on the marking part. The dust or waste water splashed by the blades and the wall are completely blocked by the plastic transparent protective layer that stretches out in an umbrella shape to form a larger shielding plane. In addition, since the plastic transparent protective layer itself is iron-resistant, the staff can directly observe whether the grooving and marking positions are consistent through the plastic transparent protective layer to avoid the position deviation of the opened grooves.

[0030] 3. Beneficial effects

[0031] Compared with the prior art, the advantages of this application are:

[0032] 1. The present application moves the plastic transparent protective layer out from the inner side of the fixed cover by setting up a supporting structure, and stretches the plastic transparent protective layer moved out from the inner side of the fixed cover by changing the angle of the supporting structure itself, thereby forming a blocking plane to block the dust splashed when the blade is polished. In addition, the larger area and multi-angle field of view of the umbrella-shaped plastic transparent protective layer provide a more accurate reference for grooving position positioning.

[0033] 2. The present application provides a limiting structure so that multiple components in the supporting structure can move smoothly inside the fixed cover, thereby improving the practicality of the device.

[0034] 3. The present application provides positioning side plates so that the two sets of movable plates can move smoothly inside the slide groove, thereby reducing the friction between the two and alleviating the labor intensity of the slider driving the limit structure to move.

[0035] 4. The present application sets a toothed plate so that it can drive the upper and lower sets of meshing gears to rotate accordingly, and the plastic transparent protective layer can be stretched to form a larger shielding surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the overall structure of a special grinding wheel machine for slotting pre-operation demonstration and marking with a protective structure disclosed in a preferred embodiment of the present application;

[0037] Figure 2 A schematic diagram of the blade connection structure of a special grinding wheel machine for slotting pre-operation demonstration and marking with a protective structure disclosed in a preferred embodiment of the present application;

[0038] Figure 3A schematic diagram of a retracted shielding device of a special grinding machine for groove pre-operation demonstration and marking with a protective structure disclosed in a preferred embodiment of the present application;

[0039] Figure 4 A schematic diagram of the supporting structure connection structure of a special grinding wheel machine for slotting pre-operation demonstration and marking with a protective structure disclosed in a preferred embodiment of the present application;

[0040] Figure 5 A schematic diagram of a slider connection structure of a special grinding wheel machine for slotting pre-operation demonstration and marking with a protective structure disclosed in a preferred embodiment of the present application;

[0041] Figure 6 A schematic diagram of the structure of the shielding device of the special grinding machine for slotting pre-operation demonstration and marking with a protective structure in the extended state disclosed in a preferred embodiment of the present application;

[0042] Figure 7 A schematic diagram of the fixed groove structure of a special grinding wheel machine for groove pre-operation demonstration and marking with a protective structure disclosed in a preferred embodiment of the present application;

[0043] Explanation of the numbers in the figure: 1. Blade; 2. Shielding device; 21. Fixed cover; 211. Fixed groove; 212. Tooth plate; 22. Positioning side plate; 221. Slide groove; 222. Round shaft; 23. Slider; 24. Support structure; 241. Support rod; 242. Rotating shaft; 243. Fixed plate; 244. Gear; 25. Limiting structure; 251. Fixed frame; 252. Connecting plate; 253. Moving plate; 254. Limiting wheel; 26. Plastic transparent protective layer; 3. Fixed handle; 4. Grinding machine body. DETAILED DESCRIPTION

[0044] The present application is further described in detail below in conjunction with the accompanying drawings.

[0045] Reference Figure 1 A shielding device 2 for protecting the blade 1 is arranged on the outside thereof, a grinder body 4 for driving the blade 1 is arranged on the top of the shielding device 2, and a fixed handle 3 for the convenience of control by the staff is arranged at one end of the grinder body 4.

[0046] refer to Figure 2 and Figure 4A support structure 24 is slidably connected to the inner side of the shielding device 2, and a plastic transparent protective layer 26 is sleeved on the outer side of the support structure 24 for blocking water flow, wastewater and iron filings. The support structure 24 specifically includes a support rod 241 for limiting the four corners of the plastic transparent protective layer 26, and the other side of the support rod 241 is rotatably connected to a fixed plate 243 through a rotating shaft 242. A gear 244 that can be meshed with a tooth plate 212 is fixedly connected to the middle of the rotating shaft 242. The tooth plate 212 that is meshed with the gear 244 is fixedly set at a fixed groove 211 opened in the middle of the fixed cover 21, and the tooth plate 212 is symmetrically set at the upper and lower ends of the inner wall of the fixed groove 211.

[0047] refer to Figure 4 and Figure 6 A positioning groove is provided at the connection between the support rod 241 and the fixed plate 243, and the positioning groove allows one end of the gear 244 to be exposed, so that after the gear 244 is meshed and connected with the toothed plate 212, it can drive the support rod 241 to rotate at one end of the fixed plate 243, thereby changing the angle of the support rod 241. The rotation of the four groups of support rods 241 drives the outer plastic transparent protective layer 26 to unfold, forming a new shielding plane.

[0048] The support structure 24 moves the plastic transparent protective layer out from the inner side of the fixed cover, and stretches the plastic transparent protective layer moved out from the inner side of the fixed cover into an umbrella shape by changing the angle of the support structure itself, forming a blocking plane to block the dust splashed when the blades are polished. The large area and multi-angle field of view of the umbrella-shaped plastic transparent protective layer provide an accurate reference for grooving position positioning.

[0049] refer to Figure 2 , Figure 5 and Figure 6 The other side of the fixed plate 243 is fixedly connected to a limiting structure 25 that can drive the supporting structure 24 to move as a whole. The limiting structure 25 includes a fixing frame 251 that cooperates with the fixing groove 211. Both sides of the fixing frame 251 are provided with connecting plates 252 that can move freely at the upper end of the slide groove 221. The other side of the connecting plate 252 is fixedly connected to a moving plate 253 that can move smoothly inside the slide groove 221, thereby ensuring that the movement of the limiting structure 25 can drive the four groups of support rods 241 to move synchronously and change their angles.

[0050] refer to Figure 2 , Figure 3 and Figure 5 Both sides of the fixed cover 21 are fixedly connected with positioning side plates 22, and the inner side of the positioning side plate 22 is provided with a slide groove 221 for limiting the moving trajectory of the limiting structure 25, and the inner side of the slide groove 221 is slidably connected with a moving plate 253, and one side of the moving plate 253 is fixedly connected with a slider 23 that can slide on the outer side of the positioning side plate 22, so that the staff can change the position of the limiting structure 25 inside the fixed groove 211 by pushing the slider 23.

[0051] refer to Figure 3 and Figure 4 Two sets of limiting wheels 254 are rotatably connected at both ends of the movable plate 253. The outer sides of the two sets of limiting wheels 254 are slidably connected with multiple sets of symmetrically arranged circular shafts 222 embedded at the upper and lower ends of the inner side of the slide groove 221. The circular shafts 222 can rotate inside the slide groove 221, thereby reducing the friction between the movable plate 253 and the slide groove 221 when moving, thereby reducing the labor intensity of the staff.

[0052] refer to Figure 3 , Figure 4 and Figure 6 The four groups of gears 244 are symmetrically arranged in two groups, the lower ends of the outer sides of the upper two groups of gears 244 are meshed and connected with the toothed plate 212, and the lower ends of the outer sides of the lower two groups of gears 244 are meshed and connected with the toothed plate 212, so that the upper two groups of support rods 241 rotate upward with the gears 244, and the lower two groups of support rods 241 can rotate downward with the gears 244, thereby driving the plastic transparent protective layer 26 to form a shielding plane with a larger surface area.

[0053] When the groove pre-operation demonstration line marking special grinding wheel machine with a protective structure is needed, the staff first pushes the outer slider 23 of the positioning side plate 22, and the slider 23 slides along the outer side of the positioning side plate 22 to drive the movable plate 253 fixedly connected to one side to move, and the movable plate 253 drives the limiting wheels 254 at both ends to move inside the slide groove 221, and the limiting wheels 254 cooperate with the rotating circular shaft 222 while moving, further reducing the friction force of the fixed frame 251 moving, so that the movable plate 253 fixedly connected to the slider 23 drives the fixed frame 251 to move, and the fixed frame 251 drives the movable plate 253 on the other side to move smoothly, and the two groups of movable plates 253 drive the fixed frame 251 to slide inside the fixed groove 211 under the joint action of the movable plates 253 rotating at both ends and the circular shaft 222, and the fixed frame 251 moves and drives the support structure 24 to move until the support rod 241 moves out of the inner side of the fixed groove 211;

[0054] At this time, the gear 244 meshes with the toothed plate 212 at the corresponding position, and then the slider 23 is pushed continuously until the two groups of support rods 241 on the upper side rotate upward with the gear 244 around the rotating shaft 242, and the two groups of support rods 241 on the lower side rotate downward with the gear 244 as the center, and the four groups of support rods 241 rotate synchronously, driving the plastic transparent protective layer 26 arranged on the outer side to extend, thereby forming a larger shielding plane;

[0055] Then the staff connects the wires of the grinder body 4 to the power supply, and the grinder body 4 drives the blade 1 to work. The staff controls the fixed handle 3 to perform the grooving operation on the marking part. The dust or waste water splashed by the blade 1 contacting the wall is completely blocked by the plastic transparent protective layer 26 that stretches out in an umbrella shape to form a larger shielding plane. Due to the characteristics of the plastic transparent protective layer 26 itself, the staff can directly observe whether the grooving and marking positions are consistent through the plastic transparent protective layer 26 to avoid the position deviation of the opened groove.

[0056] Therefore, in the present application, the plastic transparent protective layer is moved out from the inner side of the fixed cover by setting up the supporting structure, and the plastic transparent protective layer moved out of the inner side of the fixed cover is stretched out by changing the angle of the supporting structure itself, so as to form a blocking plane to block the dust splashed when the blades are polished. In addition, the larger area and multi-angle field of view of the umbrella-shaped plastic transparent protective layer provide a more accurate reference for the grooving position positioning.

Claims

1. A special grinding wheel machine for slotting pre-operation demonstration and marking with a protective structure, characterized in that: Include: The blade is provided with a shielding device on the outer side of the blade, the top of the shielding device is fixedly connected to the output end of the grinding machine body, and one end of the grinding machine body is provided with a fixed handle for the staff to control the position of the device; A fixed cover, wherein the shielding device comprises a fixed cover for protecting one side of the outer side of the blade, two sets of positioning side plates are fixedly connected on both sides of the fixed cover, a slider is slidably connected to the outer side of one set of positioning side plates, the inner side of the slider is fixedly connected to the supporting structure through a limiting structure, and a plastic transparent protective layer that can be freely extended and contracted is provided on the outer side of the supporting structure; The movement of the slider drives the limit structure to move, and the limit structure drives the support structure to slide smoothly inside the fixed cover until the plastic transparent protective layer is moved out from the inside of the fixed cover. Then the support structure changes its shape to open the plastic transparent protective layer on the outside, forming a larger umbrella-shaped shielding plane to block the dust and waste water splashed when the blades are polished. The cam is provided with a toothed plate at the inner side of the sliding plate, and the toothed plate is provided with a toothed plate at the inner side of the sliding plate, and the toothed plate is provided with a toothed plate at the inner side of the sliding plate, and the toothed plate is provided with a toothed plate at the inner side of the sliding plate. The supporting structure moves the plastic transparent protective layer out from the inner side of the fixed cover, and stretches the plastic transparent protective layer moved out from the inner side of the fixed cover into an umbrella shape by changing the angle of the supporting structure itself, forming a blocking plane to block dust splashed when the blades are polished. The large area and multi-angle field of view of the umbrella-shaped plastic transparent protective layer provide a precise reference for grooving position positioning.

2. The special grinding wheel machine for slotting pre-operation demonstration and marking with a protective structure according to claim 1, characterized in that: The middle parts of the two groups of symmetrical circular shafts are slidably connected with limiting wheels.

3. The special grinding wheel machine for slotting pre-operation demonstration and marking with a protective structure according to claim 2, characterized in that: The tooth plates are divided into two groups, the upper two groups of tooth plates are meshed and connected with the upper part of the outer side of the gear, and the lower two groups of tooth plates are meshed and connected with the lower part of the outer side of the gear.

4. A protection method for a special grinding wheel machine for slotting pre-operation demonstration and engraving with a protective structure, using the special grinding wheel machine for slotting pre-operation demonstration and engraving with a protective structure according to any one of claims 1 to 3, and the protective operation steps are as follows: A. When the slotting pre-operation demonstration and marking special grinding wheel machine with a protective structure is needed, the staff first pushes the slider on the outer side of the positioning side plate. The slider slides along the outer side of the positioning side plate to drive the moving plate fixedly connected to one side to move. The moving plate drives the limiting wheels at both ends to move inside the slide groove. While the limiting wheels move, they cooperate with the rotating circular shaft, so that the fixed frame as a whole can slide inside the fixed groove under the force applied by the moving plate. The movement of the fixed frame drives the support structure to move until the support rod moves out of the inside of the fixed groove; B. After the support rods are moved out from the inside of the fixed groove, the staff continues to push the slider until the gears mesh with the toothed plates at the corresponding positions. The two groups of support rods on the top rotate upward with the gears, and the two groups of support rods on the bottom rotate downward with the gears. The four groups of support rods rotate synchronously, driving the transparent plastic protective layer set on the outside to extend, thereby forming a larger shielding plane. C. When the support structure is fully unfolded, the staff connects the wires of the grinder body to the power supply and then the grinder body drives the blades to work. The staff controls the fixed handle to perform the grooving operation on the marking part. The dust or waste water splashed by the blades and the wall are completely blocked by the plastic transparent protective layer that stretches out in an umbrella shape to form a larger shielding plane. Due to the characteristics of the plastic transparent protective layer itself, the staff can directly observe whether the grooving and marking positions are consistent through the plastic transparent protective layer to avoid the position deviation of the opened grooves.

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