Magnetic eraser

Abstract

A magnetic eraser comprises a shell 1 which is provided with an adsorption surface 3; the rubber piece 2 is connected with the shell 1; a lifting assembly 4 and a magnetic unit 7; the lifting assembly 4 is movably connected with the shell 1 and comprises a bearing part 401 and a linkage part 402. The magnetic unit 7 is connected with the bearing part 401 and can move along with the bearing part 401, and the linkage part 402 is operated to enable the magnetic unit 7 to be close to or away from the adsorption surface 3, so that the adsorption surface 3 is magnetized or demagnetized. According to the magnetic eraser, the adsorption face is arranged on the shell, the lifting assembly is arranged, the magnetic unit can be driven to be close to or far away from the adsorption face by operating the lifting assembly, so that the adsorption face is magnetized and demagnetized, the adsorption face can collect eraser crumbs, or the adsorption force of the adsorption face to the eraser crumbs is lost or weakened, and the eraser crumbs are prevented from being damaged. And finally, the purpose of quickly cleaning the eraser scraps is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to stationery field, concretely relates to a magnetic eraser. BACKGROUND

[0002] As a stationery, the eraser is an essential tool in the scene of using pencil.

[0003] It is known that in the process of using the eraser, many eraser crumbs will be produced, and often need additional manual cleaning. Therefore, people have developed a magnetic eraser, which incorporates magnetic powder into the eraser, and by the additional magnetic unit, the eraser crumbs produced during use are adsorbed, thereby quickly collecting the eraser crumbs.

[0004] However, the magnetic eraser on the market needs to manually peel off the eraser crumbs after collecting them.

[0005] Therefore, it is necessary to provide a magnetic eraser that facilitates cleaning of the adsorbed and collected eraser crumbs. SUMMARY

[0006] To achieve the above purpose, the utility model provides the following technical scheme:

[0007] A magnetic eraser, comprising a shell 1, having an adsorption surface 3 suitable for adsorbing eraser crumbs; an eraser piece 2 connected to the shell 1; further comprising a lifting assembly 4 and a magnetic unit 7; the lifting assembly 4 is movably connected to the shell 1, comprising a bearing part 401 and a linkage part 402; the magnetic unit 7 is connected and movable with the bearing part 401, and the linkage part 402 is operated to make the magnetic unit 7 approach or move away from the adsorption surface 3, so as to magnetize or demagnetize the adsorption surface 3.

[0008] Further, the lifting assembly 4 is slidably connected to the shell 1.

[0009] Further, a first sliding groove 11 is provided on the shell 1; the lifting assembly 4 is slidably connected to the first sliding groove 11 through the linkage part 402, and the linkage part 402 partially exposes outside the shell 1.

[0010] Further, it further comprises a reset elastic member 8, which is arranged between the shell 1 and the lifting assembly 4, and is suitable for making the magnetic unit 7 keep close to or away from the adsorption surface 3.

[0011] Further, the lifting assembly 4 further comprises a lifting frame 41 slidably connected to the shell 1, and the linkage part 402 is arranged on the lifting frame 41; a turnover mechanism is suitable for making the magnetic unit 7 change from facing the adsorption surface 3 to facing away or laterally to the adsorption surface 3, and the bearing part 401 is arranged on the turnover mechanism.

[0012] Further, the turnover mechanism comprises a bearing 423, which is rotationally connected to the shell 1, the bearing part 401 is arranged on the bearing 423; a first turnover part 421, which is connected to the lifting frame 41; and a second turnover part 422, which is connected to the bearing 423 and the first turnover part 421, and drives the second turnover part 422 to rotate the bearing 423 together with the first turnover part 421 during the process that the first turnover part 421 moves away from the adsorption surface 3 along with the lifting frame 41.

[0013] Further, the first turnover part 421 and the second turnover part 422 are a combination of an arc-shaped groove and an arc-shaped tooth; the middle part of the arc-shaped groove has a first arc surface 4211, and the two ends of the first arc surface 4211 extend second arc surfaces 4212; the middle part of the arc-shaped tooth has a third arc surface 4221 matched with the first arc surface 4211, and the two ends of the third arc surface 4221 extend fourth arc surfaces 4222 matched with the second arc surfaces 4212.

[0014] Further, the bearing 423 is rotationally connected to the shell 1 through a rotating shaft 4231; the second sliding groove 411 is arranged on the lifting frame 41, and the first turnover part 421 is arranged on the edge of the second sliding groove 411; and the rotating shaft 4231 can slide in the second sliding groove 411.

[0015] Further, the utility model also comprises a scrap collecting cap 5, which is connected to the shell 1 and located outside the adsorption surface 3; and the scrap collecting cap 5 is provided with a pressing part 51 matched with the linkage part 402.

[0016] Further, the scrap collecting cap 5 is provided with a lock part, and the shell 1 is provided with a buckling part 12, which is detachably matched with the lock part, so that the scrap collecting cap 5 is kept connected to the shell 1, and under the action of external force, the scrap collecting cap 5 can be separated from the shell 1.

[0017] The utility model discloses a magnetic rubber eraser which is provided with an adsorption surface on a shell and a lifting assembly, and the lifting assembly can drive a magnetic unit to approach or move away from the adsorption surface, so as to magnetize or demagnetize the adsorption surface, so that the adsorption surface can collect rubber crumbs or lose or weaken the adsorption force on the rubber crumbs, and finally achieve the purpose of quickly cleaning the rubber crumbs. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 A structure schematic view of the magnetic eraser is disclosed in the embodiment of the utility model.

[0020] Figure 2 A structure schematic view of the magnetic eraser from another perspective.

[0021] Figure 3 A structure schematic view of the magnetic eraser after being assembled along the first turnover part and the second turnover part.

[0022] Figure 4 A structure schematic view of the lifting mechanism assembled with the shell.

[0023] Figure 5 A Figure 4 An exploded structure schematic view of the structure.

[0024] Figure 6 An exploded structure schematic view of the magnetic eraser.

[0025] Figure 7 An exploded structure schematic view of the lifting assembly.

[0026] Explanation of reference signs:

[0027] 1, shell; 11, first sliding groove; 12, buckling part;

[0028] 2, rubber piece;

[0029] 3, adsorption surface;

[0030] 4, lifting assembly; 401, bearing part; 402, linkage part; 41, lifting frame; 411, second sliding groove; 421, first turnover part; 422, second turnover part; 423, bearing piece; 4211, first arc surface;

[0031] 4212, second arc surface; 4221, third arc surface; 4222, fourth arc surface; 4231, rotating shaft;

[0032] 5, scrap collecting cap; 51, pressing part;

[0033] 6, protective cover;

[0034] 7, magnetic unit;

[0035] 8, reset elastic piece. Specific implementation

[0036] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described below in connection with the embodiments and drawings. It should be noted that the embodiments described below in connection with the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0037] The terms "first", "second", etc. are used only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features; the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0038] The terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited.

[0039] The orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the technical solutions of the present application, and do not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation. For example, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium; the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature; the first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0040] Embodiments

[0041] As Figures 1-7As shown, a magnetic eraser provided by the application is a preferred embodiment, which comprises a shell 1, an adsorption surface 3 suitable for adsorbing rubber crumbs, a rubber piece 2 connected to the shell 1, a lifting assembly 4 and a magnetic unit 7; the lifting assembly 4 is movably connected to the shell 1 and comprises a bearing part 401 and a linkage part 402; the magnetic unit 7 is connected to the bearing part 401 and can move along with the bearing part 401, and the linkage part 402 can be operated to make the magnetic unit 7 approach or move away from the adsorption surface 3, so as to magnetize or demagnetize the adsorption surface 3.

[0042] Specifically, the rubber piece 2 is rubber made of a material with magnetic powder or magnetic properties.

[0043] The adsorption surface 3 is arranged at one end of the shell 1, and the lifting assembly 4 and the magnetic unit 7 are arranged in the shell 1 and located on the inner side of the adsorption surface 3. When the magnetic unit 7 approaches the adsorption surface 3, the adsorption surface 3 is magnetized, and at this time, the adsorption surface 3 can be used to adsorb and collect the rubber crumbs scattered on the desktop; when the magnetic unit 7 moves away from the adsorption surface 3 along with the lifting assembly 4, the adsorption surface 3 is demagnetized, so that the magnetic adsorption force of the adsorption surface 3 is weakened or even lost, thereby making the rubber crumbs collected on the adsorption surface 3 automatically fall off or be easily peeled off, at this time, the rubber crumbs can be quickly cleaned, and the learning and working efficiency is improved.

[0044] In the embodiment, the adsorption surface 3 is detachably connected to the shell 1 through a mounting frame and located on the outer side of the lifting assembly 4. The adsorption surface 3 has magnetic properties, and preferably the adsorption surface 3 is a magnetic metal surface.

[0045] The lifting assembly 4 is suitable for making the magnetic unit 7 approach or move away from the adsorption surface 3 and is movably arranged on the shell 1. For example, the lifting assembly 4 is slidably connected to the shell 1 through the linkage part 402, and a user can directly operate the linkage part 402 to make the lifting assembly 4 approach or move away from the adsorption surface 3; or for example, the lifting assembly 4 is suspended behind the adsorption surface 3 through an elastic member, and the user can directly operate the linkage part 402 to make the lifting assembly 4 move away from the adsorption surface 3 to complete the demagnetization.

[0046] In the embodiment, the lifting assembly 4 is slidably connected to the shell 1 through the linkage part 402. The shell 1 is provided with a first sliding groove 11; the lifting assembly 4 is slidably connected to the first sliding groove 11 through the linkage part 402, and the linkage part 402 partially extends out of the shell 1 and is provided with a groove-shaped pressing part 51 on the inner wall of the crumb collecting cap 5, and the linkage part 402 can also slide in the pressing part, and the end wall of the pressing groove forces the linkage part 402 to move downward, so as to make the lifting assembly 41 move away from the adsorption surface 3, complete the demagnetization operation of the adsorption surface 3, and then the rubber crumbs automatically fall into the crumb collecting cap 5. In some other embodiments with poor effects, the linkage part 402 does not extend out of the shell 1, and the groove-shaped pressing part 51 in the crumb collecting cap 5 can be replaced by a pressing rod, and the pressing rod drives the linkage part 402 to move away from or approach the adsorption surface 3.

[0047] Preferably, the linkage 402 extends partially out of the housing 1, facilitating the operation of the linkage 402. In some less effective embodiments, the linkage 402 is entirely located within the housing 1, and the linkage is operated by additional tools or components.

[0048] Further, a reset elastic member 8 is provided between the housing 1 and the lifting assembly 4, adapted to keep the magnetic unit 7 close to or away from the adsorption surface 3, and to change the position state of the magnetic unit 7 by external intervention, for example, in the present example, the initial position of the magnetic unit 7 is close to the adsorption surface 3, and the lifting assembly 4 drives the magnetic unit 7 away from the adsorption surface 3 by external intervention. In some other embodiments, the initial position of the magnetic unit 7 can be away from the adsorption surface 3, and the lifting assembly 4 drives the magnetic unit 7 close to the adsorption surface 3 by external intervention.

[0049] Preferably, the reset elastic member 8 is a reset spring.

[0050] Further, the lifting assembly 4 further comprises a lifting frame 41 slidably connected to the housing 1, and the linkage 402 is provided on the lifting frame 41; a turnover mechanism adapted to turn the magnetic unit 7 from facing the adsorption surface 3 to being away from or sideways to the adsorption surface 3, and the bearing part 401 is provided on the turnover mechanism.

[0051] Through the combination of the lifting frame 41 and the turnover mechanism, when the linkage 402 is operated, the lifting frame 41 moves away from or close to the adsorption surface 3, and the magnetic unit 7 is turned by the turnover mechanism, for example, the magnetic unit 7 can be turned from facing the adsorption surface 3 to being away from or sideways to the adsorption surface 3, both of which can make the magnetic unit 7 further away from the adsorption surface 3, so as to demagnetize the adsorption surface 3. In some simpler embodiments, the turnover mechanism can not be turned, and the bearing part 401 is provided on the lifting frame 41, and the lifting frame 41 drives the magnetic unit 7 to linearly close to or away from the adsorption surface 3.

[0052] The turnover mechanism comprises a bearing 423, a rotating connection shell 1, a bearing part 401 arranged on the bearing 423, a first turnover part 421 connected with the lifting frame 41, and a second turnover part 422 connected with the bearing 423 and the first turnover part 421. During the process that the first turnover part 421 moves away from the adsorption surface 3 with the lifting frame 41, the first turnover part 421 drives the second turnover part 422 to rotate the bearing 423 together. For example, in the embodiment, the first turnover part 421 and the second turnover part 422 are matched by gear transmission. During the process that the first turnover part 421 slides with the lifting frame 41, the first turnover part 421 drives the second turnover part 422 through the transmission of the gear and the gear slot, so that the bearing 423 rotates, and the magnetic unit 7 can be turned away from or close to the adsorption surface 3. For another example, in some other embodiments, the first turnover part 421 and the second turnover part 422 can be matched by connecting rod transmission, such as that the two ends of the first turnover part 421 are respectively hinged to the lifting frame 41 and the second turnover part 422, or that one end of the first turnover part 421 is fixedly connected to the lifting frame 41 and the other end is hinged to the second turnover part 422.

[0053] Preferably, the first turnover part 421 and the second turnover part 422 are a combination of an arc-shaped slot and an arc-shaped gear.

[0054] Specifically, a first arc surface 4211 is arranged in the middle of the arc-shaped slot, and second arc surfaces 4212 are arranged at the two ends of the first arc surface 4211 and extend in the opposite direction.

[0055] Correspondingly, a third arc surface 4221 is arranged in the middle of the arc-shaped gear and matched with the first arc surface 4211, and fourth arc surfaces 4222 are arranged at the two ends of the third arc surface 4221 and extend in the opposite direction.

[0056] By arranging three arc surfaces on the first turnover part 421 and matching them with the three arc surfaces of the second turnover part 422, the three stages of the magnetic unit 7, i.e. close to the adsorption surface 3, transition from close to far from the adsorption surface 3, and far from the adsorption surface 3, can be switched more smoothly, and the product quality is further improved.

[0057] In the embodiment, the first turnover part 421 is a C-shaped slot, the middle of the C-shaped slot is a first arc surface 4211 concave downward, and the two ends of the first arc surface 4211 extend reversely to have second arc surfaces 4212; the second turnover part 422 is an arc-shaped gear matched with the C-shaped slot in shape, the middle of the arc-shaped gear is a third arc surface 4221 protruding outward, and the two sides of the third arc surface 4221 extend reversely to have fourth arc surfaces 4222. As a simple replacement, the structure of the first turnover part 421 and the second turnover part 422 can be transposed, which can achieve the same purpose and does not affect the technical effect.

[0058] In the embodiment, the carrier 423 is rotatably connected to the shell 1 through the rotating shaft 4231; in addition, the second sliding groove 411 is arranged on the lifting frame 41, the first turnover part 421 is arranged at the edge of the second sliding groove 411, and the second turnover part 422 is arranged on the carrier 423 in a position corresponding manner; and the rotating shaft 4231 can slide in the second sliding groove 411. In some other embodiments, two shaft racks can be extended from the shell 1, the rotating shaft 4231 is arranged on the shaft rack and is arranged to slide in the second sliding groove 411, and the same purpose can be achieved.

[0059] Further, the dust collecting cap 5 is connected to the shell 1 and is located outside the adsorption surface 3 and is suitable for collecting the rubber crumbs collected by the adsorption surface 3; the operation of the dust collecting cap 5 can drive the linkage part 402 to move the magnetic unit 7 away from or close to the adsorption surface 3, specifically by arranging the pressing part 51 on the dust collecting cap 5 to cooperate with the linkage part 402, and by arranging the pressing part 51 to move the lifting assembly 4 away from the adsorption surface 3, thereby changing the position of the magnetic unit 7, for example, from away to close to the adsorption surface 3, or for example, from close to away from the adsorption surface 3, so as to magnetize or demagnetize the adsorption surface 3. In the embodiment, the pressing part 51 is a pressing groove arranged on the inner wall of the dust collecting cap 5, and the linkage part 402 is in sliding connection with the pressing groove after passing through the first sliding groove 11; during the process of buckling the dust collecting cap 5 to the shell 1, the linkage part 402 can slide in the first sliding groove 11 and the second sliding groove 411 at the same time.

[0060] Preferably, in the embodiment, during the process of buckling the dust collecting cap 5 to the shell 1, the pressing part 51 makes the lifting frame 41 slide away from the adsorption surface 3; at the same time that the lifting frame 41 slides, the first turnover part 421 drives the second turnover part 422 to rotate the carrier 423, and at the same time, the magnetic unit 7 is turned from the side close to the adsorption surface 3 to the side away from the adsorption surface 3, so as to demagnetize the adsorption surface 3; then the rubber crumbs collected on the adsorption surface 3 fall into the dust collecting cap 5, thereby combining the loading of the dust collecting cap 5 to the shell 1 and the demagnetization operation into one, improving the efficiency and user experience.

[0061] Further, the dust collecting cap 5 is provided with a locking part; the shell 1 is provided with a buckling part 12 which is detachably connected with the locking part, so as to keep the dust collecting cap 5 connected to the shell 1, and under the action of external force, the dust collecting cap 5 can be separated from the shell 1, thereby avoiding the situation that the dust collecting cap 5 cannot be kept connected to the shell 1 due to the action force of the reset elastic member 8, and reducing the probability of losing the dust collecting cap.

[0062] Further, the protective cover 6 is connected to the shell 1 and is buckled outside the rubber part 2, and is suitable for protecting the rubber part 2 in a scene where the rubber part 2 is not needed to be used, so as to avoid being adsorbed by external magnetic field or being worn and consumed by external objects. In the embodiment, preferably, the rubber part 2 and the adsorption surface 3 are respectively arranged at two ends of the shell 1 and are arranged in a back-to-back manner.

[0063] The utility model discloses a magnetic rubber eraser passes through setting adsorption surface on the casing, and sets up lifting assembly, and operating lifting assembly can drive magnetic unit to be close to or far from adsorption surface to the adsorption surface magnetization and demagnetization are carried out to the adsorption surface can collect rubber crumbs, or make adsorption surface lose or weaken the adsorption of rubber crumbs, finally reach the purpose of quick cleaning rubber crumbs.

[0064] The above examples only express some implementation manners of the present application, and the skilled in the art can make some changes, replacements and improvements without creative efforts without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A magnetic eraser, comprising a shell (1) having an adsorption surface (3) adapted to adsorb eraser crumbs; an eraser piece (2) connected to the shell (1); characterized in that: it further comprises a lifting assembly (4), a magnetic unit (7), and a crumb collecting cap (5); the lifting assembly (4) is movably connected to the shell (1) and comprises a bearing part (401), a linkage part (402), a lifting frame (41), and a turnover mechanism; the magnetic unit (7) is movably connected to the bearing part (401); the lifting frame (41) is slidably connected to the shell (1), and the linkage part (402) is arranged on the lifting frame (41); the turnover mechanism is adapted to switch the magnetic unit (7) from facing the adsorption surface (3) to being away from or sideways to the adsorption surface (3), and the bearing part (401) is arranged on the turnover mechanism; the crumb collecting cap (5) is connected to the shell (1) and located outside the adsorption surface (3), and the crumb collecting cap (5) is provided with a pressing part (51) matched with the linkage part (402); an action of operating the crumb collecting cap (5) can drive the linkage part (402) to move the magnetic unit (7) close to or away from the adsorption surface (3), so as to magnetize or demagnetize the adsorption surface (3). The lifting assembly (4) is slidably connected to the shell (1). The shell (1) is provided with a first sliding groove (11); The lifting assembly (4) is slidably connected to the first sliding groove (11) through the linkage part (402), and the linkage part (402) partially protrudes out of the shell (1). Further comprising a reset elastic member (8) arranged between the shell (1) and the lifting assembly (4) and adapted to keep the magnetic unit (7) close to or away from the adsorption surface (3). The turnover mechanism comprises a bearing member (423) rotatably connected to the shell (1), and the bearing part (401) is arranged on the bearing member (423); A first turnover part (421) connected to the lifting frame (41); A second turnover part (422) connected to the bearing member (423) and axially rotatably connected to the first turnover part (421), and in the process that the first turnover part (421) moves away from the adsorption surface (3) along with the lifting frame (41), the first turnover part (421) drives the second turnover part (422) to rotate the bearing member (423) together.

2. The magnetic eraser of claim 1, wherein, The first turnover part (421) and the second turnover part (422) are a combination of an arc-shaped groove and an arc-shaped tooth; 3. The magnetic eraser of claim 2, wherein, The middle part of the arc-shaped groove has a first arc surface (4211), and the two ends of the first arc surface (4211) extend a second arc surface (4212); The middle part of the arc-shaped tooth has a third arc surface (4221) matched with the first arc surface (4211), and the two ends of the third arc surface (4221) extend a fourth arc surface (4222) matched with the second arc surface (4212).

4. The magnetic eraser of claim 3, wherein, The bearing member (423) is rotatably connected to the shell (1) through a rotating shaft (4231).

5. The magnetic eraser according to any one of claims 1 to 4, characterized in that ​ ​ ​ 6. The magnetic eraser of claim 5, wherein, ​ ​ ​ 7. The magnetic eraser of claim 6, wherein, ​ The lifting frame (41) is provided with a second sliding groove (411), and the first overturning part (421) is arranged at the edge of the second sliding groove (411). The rotating shaft (4231) can slide in the second sliding groove (411).

8. The magnetic eraser according to any one of claims 1 to 4, 6, 7, characterized in that, The chip collecting cap (5) is provided with a locking part. The shell (1) is provided with a buckling part (12) which is detachably matched with the locking part, so that the chip collecting cap (5) is kept connected with the shell (1), and under the action of external force, the chip collecting cap (5) can be separated from the shell (1).

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