Automatic rotating eraser

Abstract

The utility model discloses an automatic rotating and wiping eraser, which relates to the technical field of stationery, and comprises a gripping rod, wherein a motor is fixedly connected to the inner side of the gripping rod near the bottom, a fixing mechanism is fixedly connected to the output end of the motor, an eraser body is movably sleeved on the outer side of the fixing mechanism, and a protective mechanism is rotatably connected to the outer side of the gripping rod, and the fixing mechanism comprises a mounting plate. The automatic rotating and wiping eraser described in the utility model can pull a protective cap to separate from the gripping rod, so that the protective cap can rotate around a second rotating rod, thereby achieving the purpose of flipping the protective cap and movably sleeved on the outer wall of the gripping rod near the right end, thereby achieving the purpose of opening and closing the eraser body, and since the first rotating rod and the second rotating rod are in close contact with the gripping rod, it is avoided that external components are hooked on it, thereby damaging the components.

Description

Technical Field

[0001] The utility model relates to the technical field of stationery, in particular to an automatic rotating and wiping eraser. Background Art

[0002] An eraser is a stationery item made of rubber that has the properties of high elasticity and reversible deformation and can be used to erase pencil writing.

[0003] Chinese patent document CN206520391U discloses an automatic rotating eraser for wiping, comprising an eraser housing, a battery compartment cover, a power supply battery, a control motor, a motor switch, an eraser sleeve, an eraser body, an eraser cover, a plurality of elastic grooves, a power indicator light, a connecting belt and a pair of connecting belt rings; the power supply battery is arranged in the eraser housing, the battery compartment cover is covered on the eraser housing, the control motor is arranged in the eraser housing, the motor switch is arranged on the eraser housing, the eraser sleeve is inserted in the eraser housing and controls the motor in parallel, the eraser body is arranged in the eraser sleeve through the elastic groove, the power indicator light is embedded in the eraser housing, the connecting belt ring is arranged on the eraser housing and the eraser cover, the connecting belt is connected to the connecting belt ring, and the eraser cover is sleeved on the eraser housing. The utility model can effectively clamp the eraser body and make it rotate automatically to achieve the purpose of wiping, improve the efficiency of erasing with the eraser, save time and effort, and will not damage paper.

[0004] The existing technology has the following problems:

[0005] In order to prevent the cover of the eraser from being lost, a connecting belt is used to fix the cover and the shell together. However, after the cover is installed, the connecting belt is still outside. Since the connecting belt is too thin, it is easy to be hooked with other parts in reality, and may even cause the connecting belt to break. Utility Model Content

[0006] The utility model provides an automatic rotating eraser for wiping, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0008] The utility model discloses an automatically rotating erasing eraser, comprising a gripping rod, wherein a motor is fixedly connected to the inner side of the gripping rod near the bottom, a fixing mechanism is fixedly connected to the output end of the motor, an eraser body is movably sleeved on the outer side of the fixing mechanism, and a protective mechanism is rotatably connected to the outer side of the gripping rod.

[0009] Preferably, the fixing mechanism includes a mounting plate, the right axis of the mounting plate is fixedly connected to the output end of the motor, the left axis of the mounting plate is fixedly connected to a threaded column, the outer wall of the threaded column is threadedly connected to a fixing sleeve, and the inner side of the rubber body is movably sleeved on the outer side of the fixing sleeve.

[0010] Preferably, the inner side of the threaded column is movably sleeved with an insertion rod, the outer wall of the insertion rod is movably sleeved in a slot in the middle of the left wall of the fixed sleeve near the left side, the left end of the insertion rod is fixedly connected with a button, the inner side of the threaded column is movably sleeved with a first spring, and the first spring is located on the right side of the insertion rod.

[0011] Preferably, a plurality of convex strips distributed in an annular manner are fixedly connected to the outer wall of the fixing sleeve, and the outer sides of the convex strips are movably sleeved in the grooves provided in the inner wall of the rubber body.

[0012] Preferably, the protective mechanism includes a protective cap, and two first rotating rods symmetrically distributed front to back are fixedly connected to the right side of the protective cap near the front and rear sides, and the inner sides of the two first rotating rods are movably sleeved with second rotating rods, and the inner left and right sides of the two first rotating rods are fixedly connected with limiting rods, the left wall of the second rotating rod is movably sleeved on the outer side of the limiting rod, the outer walls of the two limiting rods are movably sleeved with second springs, and the second springs are located on the inner sides of the second rotating rods, the right end of the second rotating rod is rotatably connected to the middle of the front and rear sides of the grasping rod, and the inner side of the first rotating rod is movably sleeved on the outer side of the grasping rod near the left end.

[0013] Preferably, the outer wall of the protective cap is provided with friction patterns.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides an automatic rotating erasing eraser, which adopts the cooperation of an eraser body, a gripping rod, a protective mechanism, a first rotating rod, a second rotating rod, a limiting rod, a second spring and a protective cap. By pulling the protective cap, the protective cap is separated from the gripping rod, so that the protective cap can rotate around the second rotating rod, and then the protective cap is flipped and movably sleeved on the outer wall of the gripping rod near the right end, so as to achieve the purpose of opening and closing the eraser body. Since the first rotating rod and the second rotating rod are close to the gripping rod, it is avoided that external components cause hooking on them, thereby damaging the components.

[0016] 2. The utility model provides an automatically rotating erasing eraser, which adopts the cooperation of a fixing mechanism, a mounting plate, a threaded column, a fixing sleeve, a plug rod, a button, a first spring, a convex strip and an eraser body. By pressing the button and then rotating the fixing sleeve, the fixing sleeve is removed from the threaded column, so that the eraser body can be quickly replaced. The utility model is convenient to disassemble, install and operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 It is a partial cross-sectional three-dimensional structural schematic diagram of the fixing mechanism of the utility model;

[0020] Figure 4 It is a partial cross-sectional three-dimensional structural schematic diagram of the fixing sleeve part of the utility model;

[0021] Figure 5 It is a partial cross-sectional three-dimensional structural schematic diagram of the first rotating rod portion of the utility model.

[0022] In the figure: 1. gripping rod; 2. motor; 3. fixing mechanism; 31. mounting plate; 32. threaded column; 33. fixing sleeve; 34. convex strip; 35. plug rod; 36. button; 37. first spring; 4. rubber body; 5. protection mechanism; 51. first rotating rod; 52. second rotating rod; 53. limit rod; 54. second spring; 55. protection cap. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 , Figure 2 As shown, an automatically rotating erasing eraser comprises a gripping rod 1, a motor 2 is fixedly connected to the inner side of the gripping rod 1 near the bottom, a fixing mechanism 3 is fixedly connected to the output end of the motor 2, an eraser body 4 is movably sleeved on the outer side of the fixing mechanism 3, and a protective mechanism 5 is rotatably connected to the outer side of the gripping rod 1.

[0025] It should be noted that the motor 2 drives the fixing mechanism 3 to rotate, the fixing mechanism 3 drives the eraser body 4 to rotate, and the eraser body 4 erases the pencil writing.

[0026] like Figure 3As shown, the fixing mechanism 3 includes a mounting plate 31, the right axis of the mounting plate 31 is fixedly connected to the output end of the motor 2, the left axis of the mounting plate 31 is fixedly connected to a threaded column 32, the outer wall of the threaded column 32 is threadedly connected to a fixing sleeve 33, and the inner side of the rubber body 4 is movably sleeved on the outer side of the fixing sleeve 33.

[0027] It should be noted that when the fixing sleeve 33 is completely threadedly connected to the outer side of the threaded column 32 , the distance between the mounting plate 31 and the left circular plate of the fixing sleeve 33 is slightly larger than the rubber body 4 , so that the circular plate and the mounting plate 31 clamp the rubber body 4 together.

[0028] like Figure 3 , Figure 4 As shown, the inner side of the threaded column 32 is movably sleeved with an insert rod 35, the outer wall of the insert rod 35 is movably sleeved near the left side in a slot in the middle of the left wall of the fixed sleeve 33, the left end of the insert rod 35 is fixedly connected with a button 36, the inner side of the threaded column 32 is movably sleeved with a first spring 37, and the first spring 37 is located on the right side of the insert rod 35.

[0029] It should be noted that the insertion rod 35 is used to fix the fixing sleeve 33 to prevent the threaded connection between the fixing sleeve 33 and the threaded column 32 from loosening, thereby relaxing the clamping of the rubber body 4. The first spring 37 pushes the insertion rod 35 to prevent the insertion rod 35 from being disengaged from the slot. Pressing the button 36 allows the insertion rod 35 to be disengaged from the slot. At this time, the fixing sleeve 33 can be removed from the threaded column 32.

[0030] like Figure 3 , Figure 4 As shown, the outer wall of the fixing sleeve 33 is fixedly connected with a plurality of protrusions 34 distributed in an annular shape, and the outer sides of the protrusions 34 are movably sleeved in the slots provided in the inner wall of the rubber body 4 .

[0031] It should be noted that the convex strip 34 is used to enhance the fixed closure between the rubber body 4 and the fixing sleeve 33 to prevent the fixing sleeve 33 and the rubber body 4 from rotating relative to each other.

[0032] like Figure 2 , Figure 5 As shown, the protection mechanism 5 includes a protection cap 55, and two first rotating rods 51 symmetrically distributed front to back are fixedly connected to the right side of the protection cap 55 near the front and rear sides, and the inner sides of the two first rotating rods 51 are movably sleeved with the second rotating rod 52, and the inner left and right sides of the two first rotating rods 51 are fixedly connected with the limiting rod 53, the left wall of the second rotating rod 52 is movably sleeved on the outer side of the limiting rod 53, and the outer walls of the two limiting rods 53 are movably sleeved with the second spring 54, and the second spring 54 is located on the inner side of the second rotating rod 52, the right end of the second rotating rod 52 is rotatably connected to the middle of the front and rear sides of the grasping rod 1, and the inner side of the first rotating rod 51 is movably sleeved on the outer side of the grasping rod 1 near the left end.

[0033] It should be noted that the protective cap 55 is used to close the rubber body 4, and the second spring 54 pushes the first rotating rod 51 to prevent the protective cap 55 from loosening with the gripping rod 1. The protective cap 55 is pulled to separate it from the gripping rod 1, and then the protective cap 55 is rotated to flip it 180 degrees, so that it can be movably sleeved on the outer wall of the gripping rod 1 near the right end, so that the rubber body 4 is in an open state.

[0034] like Figure 2 As shown, the outer wall of the protective cap 55 is provided with friction patterns.

[0035] It should be noted that the friction pattern is used to increase the friction between the hand and the protective cap 55 , making it easier for the user to rotate the protective cap 55 .

[0036] The working principle of the utility model is as follows: first, the protective cap 55 is used to close the rubber body 4, the second spring 54 pushes the first rotating rod 51 to prevent the protective cap 55 from loosening with the gripping rod 1, the protective cap 55 is pulled to separate it from the gripping rod 1, and then the protective cap 55 is rotated to flip it 180 degrees, so that it is movably sleeved on the outer wall of the gripping rod 1 near the right end, so that the rubber body 4 is in an open state, and the friction pattern is used to increase the friction between the hand and the protective cap 55, so that the user can rotate the protective cap 55 conveniently, and by pulling the protective cap 55, the protective cap 55 is separated from the gripping rod 1, so that the protective cap 55 can rotate around the second rotating rod 52, thereby achieving the purpose of flipping the protective cap 55 and movably sleeved on the outer wall of the gripping rod 1 near the right end, and achieving the rubber body 4. The purpose of opening and closing the rubber body 4 is that the first rotating rod 51 and the second rotating rod 52 are close to the grasping rod 1, which prevents external parts from hooking it and damaging the parts. Finally, the insertion rod 35 is used to fix the fixing sleeve 33 to prevent the threaded connection between the fixing sleeve 33 and the threaded column 32 from loosening, so as to relax the clamping of the rubber body 4. The first spring 37 pushes the insertion rod 35 to prevent the insertion rod 35 from being disengaged from the slot. Pressing the button 36 allows the insertion rod 35 to be disengaged from the slot. At this time, the fixing sleeve 33 can be removed from the threaded column 32. By pressing the button 36 and then rotating the fixing sleeve 33, the fixing sleeve 33 is removed from the threaded column 32, so that the rubber body 4 can be quickly replaced, and the disassembly is convenient, the installation is convenient, and the operation is simple.

[0037] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic rotating eraser, comprising a gripping rod (1), characterized in that: A motor (2) is fixedly connected to the inner side of the gripping rod (1) near the bottom, a fixing mechanism (3) is fixedly connected to the output end of the motor (2), a rubber body (4) is movably sleeved on the outer side of the fixing mechanism (3), and a protective mechanism (5) is rotatably connected to the outer side of the gripping rod (1); The fixing mechanism (3) comprises a mounting plate (31), the right axis of the mounting plate (31) is fixedly connected to the output end of the motor (2), the left axis of the mounting plate (31) is fixedly connected to a threaded column (32), the outer wall of the threaded column (32) is threadedly connected to a fixing sleeve (33), and the inner side of the rubber body (4) is movably sleeved on the outer side of the fixing sleeve (33); The protection mechanism (5) comprises a protection cap (55), and two first rotating rods (51) symmetrically distributed in the front and rear directions are fixedly connected to the right side of the protection cap (55) near the front and rear sides, and the inner sides of the two first rotating rods (51) are movably sleeved with second rotating rods (52), and the left and right sides of the inner sides of the two first rotating rods (51) are fixedly connected with limiting rods (53), and the left wall of the second rotating rod (52) is movably sleeved on the outer side of the limiting rod (53), and the outer walls of the two limiting rods (53) are movably sleeved with second springs (54), and the second springs (54) are located on the inner sides of the second rotating rods (52), and the right end of the second rotating rod (52) is rotatably connected to the middle of the front and rear sides of the gripping rod (1), and the inner side of the first rotating rod (51) is movably sleeved on the outer side of the gripping rod (1) near the left end.

2. The automatic rotating eraser according to claim 1, characterized in that: The inner side of the threaded column (32) is movably sleeved with an insertion rod (35); the outer wall of the insertion rod (35) is movably sleeved in a slot in the middle of the left wall of the fixed sleeve (33) at a position close to the left side; the left end of the insertion rod (35) is fixedly connected with a button (36); the inner side of the threaded column (32) is movably sleeved with a first spring (37), and the first spring (37) is located on the right side of the insertion rod (35).

3. The automatic rotating eraser according to claim 1, characterized in that: The outer wall of the fixed sleeve (33) is fixedly connected with a plurality of annularly distributed convex strips (34), and the outer side of the convex strips (34) is movably sleeved in a slot provided on the inner side wall of the rubber body (4).

4. The automatic rotating eraser according to claim 1, characterized in that: The outer wall of the protective cap (55) is provided with friction patterns.

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