Heat erasable eraser
By designing an active protective cover and a trigger switch in the heat-erasable eraser to control the exposure and coverage of the heat dissipation head, the problem of insufficient safety in the prior art is solved, and higher safety and battery life are achieved.
Patent Information
- Application Number
- CN202520447949.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Among existing heat-erasable erasers, silicone rubber material can easily damage paper and leave residues, and the exposed heating head can easily burn the skin, making them unsafe.
Design a heat-erasable eraser comprising a housing, a heat dissipation component, and a protective cover. The protective cover can be operated via function keys to selectively expose or cover the heat dissipation head, triggering a switch to control the heat dissipation head to heat up, and a reset component is provided to ensure safety.
It effectively prevents users from being burned by the heat dissipation head, improving the product's safety performance and battery life.
Smart Images
Figure CN223864592U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stationery, specifically to a heat-erasable eraser. Background Technology
[0002] With technological advancements, people have invented inks that can be heated to erase handwriting. Handwriting written with this type of ink can be removed by heating. Currently, there are two common methods of removal. One method uses silicone rubber, which involves pressing and rubbing the ink back and forth by hand, but this can easily damage the paper and often leaves residue. The other method uses a heating element, but the exposed heating element can easily cause burns to the skin.
[0003] Therefore, there is a need to provide a heat-erasable eraser with higher safety. Summary of the Invention
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A heat-erasable eraser, characterized in that: it includes a housing 1; a heat-dissipating component 2 connected to the housing 1, the heat-dissipating component 2 including a heat-dissipating head 21; a protective cover 3 movably connected to the housing 1 or the heat-dissipating component 2; and the protective cover 3 is operated so that the heat-dissipating head 21 is optionally exposed outside the protective cover 3 or covered by the protective cover 3.
[0006] Furthermore, it also includes a function key 4, which is movably connected to the housing 1; the protective cover 3 is slidably connected to the housing 1 or the heat dissipation component 2; by operating the protective cover 3 through the function key 4, the protective cover 3 can be moved away from the heat dissipation head 21, so that the heat dissipation head 21 is exposed outside the protective cover 3.
[0007] Furthermore, the heat dissipation component 2 also includes a power module 23; a trigger switch 24 electrically connected to the power module 23; the heat dissipation head 21 is electrically connected to the power module 23 and the trigger switch 24; the action of moving the protective cover 3 by operating the function key 4 can trigger the trigger switch 24 in conjunction, thereby causing the heat dissipation head 21 to heat up.
[0008] Furthermore, the trigger switch 24 is located on the moving path of the protective cover 3 or on the active path of the function key 4, so that the trigger switch 24 is activated during the operation of the function key 4 to move the heat dissipation component 2.
[0009] Furthermore, the function key 4 is slidably connected to the housing 1; the trigger switch 24 is located at the end of the sliding stroke of the function key 4; pressing the function key 4 toward the inside of the housing 1 can move the protective cover 3, and when the function key 4 reaches the end of its stroke, it triggers the trigger switch 24.
[0010] Furthermore, the function key 4 is provided with a guide surface 41, located at one end near the inside of the housing 1; the protective cover 3 is provided with a mating guide surface 33.
[0011] Furthermore, a clearance groove 12 is provided on the outer side wall of the housing 1; the function key 4 is installed in the clearance groove 12, and the initial height of the function key 4 does not exceed the highest point of the clearance groove 12.
[0012] Furthermore, it also includes a reset member 5, connected between the protective cover 3 and the housing 1, adapted to give the protective cover 3 a tendency to move toward the outside of the housing 1.
[0013] Furthermore, the housing 1 is provided with a receiving cavity 11, the receiving cavity 11 having an opening 111; the heat dissipation component 2 is fixed in the receiving cavity 11, and the heat dissipation head 21 is at least partially exposed outside the opening 111; the protective cover 3 is slidably connected to the receiving cavity 11.
[0014] Furthermore, the protective cover 3 includes a cover body 31, adapted to cover the heat dissipation head 21; and a mounting part 32, connected to the rear end of the cover body 31, adapted to cooperate with the function key 4.
[0015] This utility model discloses a heat-erasable eraser that features a movable protective cover. When in use, the heat-extinguishing head is exposed outside the housing, and when not in use, it is covered by the protective cover. This effectively prevents users from being burned by the heat-extinguishing head and improves the safety performance of the product. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of a heat-erasable eraser disclosed in Embodiment 1 of this utility model.
[0018] Figure 2 for Figure 1 A schematic diagram of the internal structure when the structure is opened.
[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the heat-erasable eraser when the function key is pressed.
[0020] Figure 4 for Figure 3A schematic diagram of the internal structure when the structure is opened.
[0021] Figure 5 for Figure 3 A cross-sectional schematic diagram of the structure.
[0022] Figure 6 This is a schematic diagram of the exploded structure of the heat-erasable eraser in Example 1.
[0023] Figure 7 This is a structural diagram of the function keys and protective cover.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Shell; 11. Receiving cavity; 111. Opening; 12. Relief groove;
[0026] 2. Heat dissipation assembly; 21. Heat dissipation head; 211. Head cover; 212. Heating wire; 22. Mounting bracket; 23. Power module; 24. Trigger switch;
[0027] 3. Protective cover; 31. Cover body; 32. Mounting part; 33. Mating guide surface;
[0028] 4. Function keys; 41. Guide surface;
[0029] 5. Reset component. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings. It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this invention, and should not be construed as limiting this invention.
[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature; "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0032] Terms such as “installation,” “connection,” “linking,” and “fixing” should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components, unless otherwise explicitly defined.
[0033] Terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These are used solely for the purpose of describing the technical solutions of this invention and do not imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. For example, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium; "above," "on top," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature; "below," "under," and "below" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0034] Example 1
[0035] like Figure 1-7 As shown, a preferred embodiment of the heat-erasable eraser provided by the present invention includes a housing 1; a heat-dissipating component 2 connected to the housing 1, the heat-dissipating component 2 including a heat-dissipating head 21; a protective cover 3 movably connected to the housing 1 or the heat-dissipating component 2; the protective cover 3 is operated so that the heat-dissipating head 21 can be selectively exposed outside the protective cover 3 or covered by the protective cover 3, thereby effectively preventing the user from being burned by the heat-dissipating head 21 and improving the safety performance of the product.
[0036] In this embodiment, the protective cover 3 is slidably connected to the housing 1, and the protective cover 3 is operated by the function key 4 as an example for illustrative purposes.
[0037] Specifically, the housing 1 is provided with a receiving cavity 11, the receiving cavity 11 having an opening 111; the heat dissipation assembly 2 is fixed in the receiving cavity 11, and the heat dissipation head 21 is at least partially exposed outside the opening 111; the protective cover 3 is slidably connected to the receiving cavity 11. In some embodiments, the protective cover 3 may also be slidably disposed on the outer wall of the housing 1, located outside the opening 111 of the receiving cavity 11.
[0038] The heat dissipation assembly 2 includes a heat dissipation head 21 and a mounting bracket 22, which is fixedly connected to the receiving cavity 11. It is readily understood that, in some other embodiments, the protective cover 3 may also be slidably connected to the mounting bracket 22.
[0039] The protective cover 3 includes a cover body 31 adapted to cover the heat dissipation head 21; and a mounting part 32 connected to the rear end of the cover body 31, adapted to cooperate with the function key 4. In this embodiment, the cover body 31 is sleeved on the outside of the mounting frame 22, and the heat dissipation head 21 is at one end of the mounting frame 22. The function key 4 allows the cover body 31 to selectively cover the heat dissipation head 21 or expose it outside the cover body 31.
[0040] Furthermore, it also includes a function key 4, which is movably connected to the housing 1; a protective cover 3 is slidably connected to the housing 1; by operating the protective cover 3 via the function key 4, the protective cover 3 can be moved away from the heat dissipation head 21, exposing the heat dissipation head 21 outside the protective cover 3. It is easy to understand that in some less effective embodiments, the protective cover 3 can be directly operated to expose or cover the heat dissipation head 21.
[0041] The function key 4 is provided with a guide surface 41, located at one end near the inside of the housing 1; the protective cover 3 is provided with a mating guide surface 33, specifically set on the mounting part 32; the guide surface 41 and the mating guide surface 33 work together to cause the protective cover 3 to move into the housing 1 during the pressing of the function key 4, thereby exposing the heat dissipation head 21 to the outside.
[0042] The heat dissipation component 2 also includes a power module 23; a trigger switch 24 electrically connected to the power module 23; and a heat dissipation head 21 electrically connected to the power module 23 and the trigger switch 24.
[0043] Furthermore, the action of moving the protective cover 3 by operating the function key 4 can trigger the switch 24, thereby causing the heat dissipation head 21 to heat up, thus further improving the safety performance of the product. In addition, when the heat-erasable eraser is not needed, the heat dissipation head 21 will not consume the power of the power module 23, which can effectively improve the product's battery life.
[0044] By setting the trigger switch 24 on the sliding path of the protective cover 3 or on the active path of the function key 4, the trigger switch 24 is activated during the operation of the function key 4 to move the heat dissipation component 2.
[0045] For example, in this embodiment, function key 4 is slidably connected to housing 1; trigger switch 24 is located at the end of the sliding stroke of function key 4, that is, trigger switch 24 is located below function key 4; pressing function key 4 towards the inside of housing 1 moves protective cover 3, and when function key 4 reaches the end of its stroke, trigger switch 24 is activated, and the power module 23 heats up the heating element. Alternatively, trigger switch 24 may be located on the sliding stroke of function key 4, on the side of function key 4, with a protrusion on function key 4, so that pressing function key 4 activates trigger switch 24.
[0046] In this embodiment, the trigger switch 24 is a normally open switch, which is closed by pressing the function key 4, thereby forming a circuit path between the power module 23 and the heat dissipation head 21 to heat the heat dissipation head 21. It is easy to understand that in some other embodiments, a normally closed switch can also be used, and it is set at the beginning of the sliding stroke of the function key 4 or the protective cover 3. After pressing the function key 4, the pressing protrusion of the function key 4 or the protective cover 3 leaves the normally closed switch, thereby forming a circuit path between the power module 23 and the heat dissipation head 21.
[0047] The heat dissipation head 21 includes a heating wire 212 and a head cover 211. The head cover 211 is fixed on the mounting bracket 22. The heating wire 212 is electrically connected to the trigger switch 24 and the power supply assembly, and the heating wire 212 extends into the cavity of the head cover 211.
[0048] Furthermore, it also includes a reset member 5, connected between the protective cover 3 and the housing 1, adapted to give the protective cover 3 a tendency to move toward the outside of the housing 1. The reset member 5 is preferably a spring, with its two ends abutting against the cover portion 31 of the protective cover 3 and the inner wall of the receiving cavity 11 of the housing 1, respectively.
[0049] In this embodiment, after the external force of pressing the function key 4 is released, the reset member 5 pushes the protective cover 3 toward the opening 111 of the receiving cavity 11. At the same time, with the combined action of the guide and the guide surface 41, the function key 4 is pushed out of the housing 1, away from the trigger switch 24. Meanwhile, the heat dissipation head 21 and the power module 23 are disconnected and no longer generate heat.
[0050] Furthermore, a clearance groove 12 is provided on the outer wall of the housing 1; the function key 4 is installed in the clearance groove 12, and the initial height of the function key 4 does not exceed the highest point of the clearance groove 12. One purpose is to avoid accidental activation of the function key 4. Specifically, a mounting hole is provided at the bottom of the clearance groove 12, and the function key 4 is slidably disposed in the mounting hole.
[0051] Working principle:
[0052] When in use, press function key 4; the guide surface 41 of function key 4 presses the mating guide surface 33 of protective cover 3, causing protective cover 3 to continuously slide and retract into the receiving cavity 11 of housing 1; when function key 4 reaches the end of its stroke, it triggers switch 24, power module 23 causes heat dissipation head 21 to heat up, and at the same time, protective cover 3 retracts into receiving cavity 11, exposing heat dissipation head 21.
[0053] When the hot erasable eraser is not needed, press the function key 4. The reset piece 5 pushes the protective cover 3 toward the opening 111 of the receiving cavity 11. At the same time, with the combined action of the guide and the guide surface 41, the function key 4 is pushed out of the housing 1, away from the trigger switch 24. Meanwhile, the heat dissipation head 21 is disconnected from the power module 23 and no longer heats up until the protective cover 3 and the function key 4 return to their initial positions. The heat dissipation head 21 also returns to its initial state of being covered by the protective cover 3.
[0054] Example 2
[0055] As a variation of the above embodiment one, the operation function key 4 moves the protective cover 3, which can also trigger the trigger switch 24, and the protective cover 3 triggers the trigger switch 24.
[0056] Specifically, the protective cover 3 is slidably connected to the receiving cavity 11 of the housing 1; the trigger switch 24 is located at the end of the sliding stroke of the protective cover 3, that is, the trigger switch 24 is located behind the protective cover 3; pressing the function key 4 towards the inside of the housing 1 can move the protective cover 3. When the protective cover 3 reaches the end of its stroke, it triggers the trigger switch 24, and the power module 23 heats up the heating element; or, the trigger switch 24 is located on the sliding stroke of the protective cover 3, on the side of the protective cover 3, and a protrusion is provided on the function key 4 so that the trigger switch 24 is triggered when the function key 4 is pressed.
[0057] Example 3
[0058] As a variation of the above embodiment 1, the function key 4 includes a push plate and a connecting plate.
[0059] Specifically, a groove is provided on the housing 1, and the push plate passes through the groove via the connecting plate and is fixedly connected to the protective cover 3. In use, by pushing the push plate, the protective cover 3 is moved away from the heat dissipation head 21, thereby exposing the heat dissipation head 21.
[0060] It is understandable that the aforementioned trigger switch 24 is set on the sliding stroke of the connecting plate or protective cover 3, so that the action of moving the protective cover 3 by operating the function key 4 is linked with the action of triggering the trigger switch 24, thereby further improving the installation performance and battery life of the product.
[0061] Example 4
[0062] In another embodiment, the protective cover 3 is replaced by a flip cover instead of a sliding connecting housing 1.
[0063] Specifically, one end of the protective cover 3 is hinged to the housing 1 via a pivot. By rotating the other end of the protective cover 3, the protective cover 3 can be opened to expose the heat dissipation head 21.
[0064] This utility model discloses a heat-erasable eraser that features a movable protective cover. When in use, the heat-extinguishing head is exposed outside the housing, and when not in use, it is covered by the protective cover. This effectively prevents users from being burned by the heat-extinguishing head and improves the safety performance of the product.
[0065] The above embodiments only illustrate a portion of the implementation methods of the present invention. Any modifications, substitutions, and improvements made by those skilled in the art without departing from the inventive concept of the present invention, without creative effort, are all within the protection scope of the present invention.
Claims
1. A thermal erasable rubber, characterized by: The application relates to a heat dissipation device, which comprises a shell (1), a heat dissipation assembly (2) connected to the shell (1), the heat dissipation assembly (2) comprising a heat dissipation head (21), a protective cover (3) movably connected to the shell (1) or the heat dissipation assembly (2), and an operation key (4) movably connected to the shell (1). The protective cover (3) is movably connected to the shell (1) or the heat dissipation assembly (2). The operation key (4) is used to move the protective cover (3) to expose or cover the heat dissipation head (21). The heat dissipation assembly (2) further comprises a power module (23).
2. The thermal erasable rubber of claim 1, wherein, A trigger switch (24) is electrically connected to the power module (23). The heat dissipation head (21) is electrically connected to the power module (23) and the trigger switch (24). The operation of the operation key (4) to move the protective cover (3) can trigger the trigger switch (24) to make the heat dissipation head (21) generate heat.
3. The thermal erasable rubber of claim 2, wherein, The trigger switch (24) is located on the moving path of the protective cover (3) or on the moving path of the operation key (4), so that the trigger switch (24) can be triggered during the operation of the operation key (4) to move the heat dissipation assembly (2). The operation key (4) is movably connected to the shell (1). The trigger switch (24) is located at the end of the sliding stroke of the operation key (4). The operation key (4) is pressed towards the inside of the shell (1), so that the protective cover (3) is moved, and the trigger switch (24) is triggered when the operation key (4) reaches the end of the stroke.
4. The thermal erasable rubber of claim 3, wherein, The operation key (4) is provided with a guide surface (41) located at one end close to the inside of the shell (1).
5. The thermal erasable marker of claim 3, wherein, The protective cover (3) is provided with a matching guide surface (33). The shell (1) is provided with a clearance groove (12) on the outer wall. The operation key (4) is installed in the clearance groove (12), and the initial height of the operation key (4) does not exceed the highest point of the clearance groove (12).
6. The thermal erasable rubber of claim 5, wherein, A reset member (5) is connected between the protective cover (3) and the shell (1), and is adapted to make the protective cover (3) have a tendency to move towards the outside of the shell (1). The shell (1) is provided with a receiving cavity (11) having an opening (111).
7. The thermal erasable marker of claim 5, wherein, The heat dissipation assembly (2) is fixed in the receiving cavity (11), and the heat dissipation head (21) is at least partially exposed outside the opening (111). The protective cover (3) is movably connected to the receiving cavity (11).
8. An erasable thermal rubber according to any one of claims 2 to 7, wherein The protective cover (3) comprises a cover body (31) adapted to cover the heat dissipation head (21).
9. The thermal erasable rubber of claim 8, wherein, An installation part (32) is connected to the rear end of the cover body (31) and is adapted to cooperate with the operation key (4). 10. The thermal erasable rubber of claim 9, wherein,