Press type thermal erasable pen

Abstract

The utility model discloses a pressing type thermal erasable pen. The pressing type heat erasable pen comprises a pen holder, a pen cap, a pen refill and a heat erasable head, a pen point extending hole is formed in the first end of the pen holder, a clamping part and a positioning part are further arranged at the first end of the pen holder, the positioning part extends in the length direction of the pen holder, the clamping part and the positioning part are arranged in a crossed mode, and a mounting hole is formed in the first end of the pen holder; the pen refill is arranged in the pen holder, the pen cap is arranged in the mounting hole and is configured to push the pen refill to slide in the pen holder, the heat erasable head is of an annular structure, and a clamping matching part and a positioning matching part are arranged on the inner wall of the heat erasable head; the first end of the pen holder is sleeved with the heat erasable head, the clamping part and the clamping matching part are clamped together, and the positioning part and the positioning matching part are connected together and are configured to limit rotation of the heat erasable head relative to the pen holder. The press-type thermal erasable pen is improved in assembly reliability so as to improve the user experience.

Description

Technical Field

[0001] The utility model relates to the technical field of writing documents, in particular to a push-type thermal erasable pen. Background Art

[0002] The ink of a heat-erasable pen contains a color-forming material, a color developer, and a color-changing temperature adjuster. At room temperature, the color-forming material and the color developer combine to generate color, but when the temperature exceeds about 60°C, the color-changing temperature adjuster will prevent the color-forming material and the color developer from combining, thereby causing the color to disappear. Usually, a rubber head is set at the end of the heat-erasable pen. When the written handwriting needs to be erased, the rubber head is rubbed against the paper surface to generate heat to make the ink handwriting transparent. Chinese patent announcement number CN207772700 U discloses a heat-erasable pen, which places a heat-erasable head at the head of the pen barrel. In this way, during the writing process, the handwriting on the paper can be erased directly through the heat-erasable head at the head. For the heat-erasable head, it is fixed at the head of the pen barrel by a card-mounted method. During use, since the heat-erasable head needs to contact the paper for frequent friction, the card-mounted connection part of the heat-erasable head is prone to loosening, and the heat-erasable head rotates during friction, resulting in a reduced user experience. In view of this, how to design a technology to improve assembly reliability to enhance user experience is a technical problem to be solved by the present utility model. Utility Model Content

[0003] The utility model provides a push-type heat-erasable pen, which improves the assembly reliability of the push-type heat-erasable pen and improves the user experience.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a push-type heat-erasable pen, comprising: a pen barrel, a pen cap, a pen core and a heat-erasable head, the first end of the pen barrel is provided with a pen head extension hole, the first end of the pen barrel is also provided with a clamping part and a positioning part, the positioning part is extended and arranged along the length direction of the pen barrel, the clamping part and the positioning part are cross-arranged, and the first end of the pen barrel is provided with a mounting hole; the pen core is arranged in the pen barrel, the pen cap is arranged in the mounting hole and is configured to push the pen core to slide in the pen barrel, the heat-erasable head is annular in structure, and the inner wall of the heat-erasable head is provided with a clamping fitting part and a positioning fitting part; the heat-erasable head is sleeved on the first end of the pen barrel, the clamping part is clamped together with the clamping fitting part, and the positioning part is connected together with the positioning fitting part and is configured to limit the heat-erasable head from rotating relative to the pen barrel.

[0006] Furthermore, the positioning portion is a first positioning rib provided on the first end portion of the pen barrel, and the positioning matching portion is a first positioning groove provided on the inner wall of the thermally erasable head; wherein the first positioning rib is located in the first positioning groove.

[0007] Furthermore, the clamping portion is a first clamping rib arranged on the first end portion of the pen barrel, and the clamping matching portion is a first clamping groove arranged on the inner wall of the thermally erasable head, and the first clamping rib is clamped in the first clamping groove.

[0008] Furthermore, a plurality of the first positioning ribs are arranged on the first end of the pen holder, and the first clamping groove is arranged between two adjacent first positioning ribs;

[0009] A plurality of the first positioning grooves are arranged on the inner wall of the thermal erasable head, and the clamping groove is arranged between two adjacent first positioning grooves.

[0010] Furthermore, the outer surface of the first positioning rib is an inclined surface, and the inclined surface extends from the first end portion to the second end portion of the pen shaft in an inclined direction toward the outer side of the pen shaft.

[0011] Furthermore, the positioning portion is a second positioning groove provided on the first end portion of the pen barrel, and the positioning matching portion is a second positioning rib provided on the inner wall of the thermally erasable head; wherein the second positioning rib is located in the second positioning groove.

[0012] Furthermore, the clamping portion is a second clamping groove arranged on the first end portion of the pen body, and the clamping matching portion is a second clamping rib arranged on the inner wall of the thermally erasable head, and the second clamping rib is clamped in the second clamping groove.

[0013] Furthermore, the first end of the pen barrel is also provided with a raised annular support portion, which is arranged on the outside of the clamping portion and the positioning portion and adjacent to the pen tip extension hole, and the annular support portion abuts against the inner wall of the thermally erasable head.

[0014] Furthermore, an annular supporting fitting portion is also provided on the inner wall of the thermally erasable head, and the annular supporting portion abuts against the annular supporting fitting portion.

[0015] Further, the annular supporting fitting portion is a supporting groove arranged on the inner wall of the thermally erasable head, and the annular supporting portion is located in the supporting groove.

[0016] Further, the annular supporting matching portion is a step surface arranged on the inner wall of the thermally erasable head, and the annular supporting portion abuts against the step surface.

[0017] The technical solution of the utility model has the following technical effects compared with the prior art: by arranging a snap-fitting part and a positioning part on the pen barrel, correspondingly, a snap-fitting part and a positioning matching part are arranged on the inner wall of the thermally erasable head, the snap-fitting part and the snap-fitting part cooperate with each other to satisfy the requirement of assembling the thermally erasable head on the pen barrel, and the positioning part and the positioning matching part cooperate with each other so that the thermally erasable head can be restricted from rotating relative to the pen barrel after the thermally erasable head is assembled. In this way, when the user rubs the surface of the paper with the thermally erasable head during use, the thermally erasable head is restricted by the positioning part and the positioning matching part so that the thermally erasable head will not rotate relative to the pen barrel, thereby improving the assembly reliability of the push-type thermally erasable pen to improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of an embodiment of the push-type heat-erasable pen of the utility model;

[0019] Figure 2 for Figure 1 A partial cross-sectional view of a middle push-type heat-erasable pen;

[0020] Figure 3 for Figure 2 A partial enlarged schematic diagram of the middle A area;

[0021] Figure 4 for Figure 1 A schematic diagram of the partial structure of the middle pen holder;

[0022] Figure 5 for Figure 1 Schematic diagram of the structure of the medium heat erasable head.

[0023] Reference numerals:

[0024] 1. Pen holder; 11. Pen tip extension hole; 12. Clamping part; 13. Positioning part; 14. Mounting hole; 15. Annular support part;

[0025] 2. Pen cap;

[0026] 3. Pen refill;

[0027] 4. Thermal erasable head; 41. Snap-fitting part; 42. Positioning fitting part; 43. Annular supporting fitting part. DETAILED DESCRIPTION

[0028] like Figure 1-Figure 5As shown, the utility model provides a push-type heat-erasable pen, comprising: a pen holder 1, a pen cap 2, a pen core 3 and a heat-erasable head 4, the first end of the pen holder 1 is provided with a pen head extension hole 11, the first end of the pen holder 1 is also provided with a clamping portion 12 and a positioning portion 13, the positioning portion 13 is extended along the length direction of the pen holder 1, the clamping portion 12 and the positioning portion 13 are arranged crosswise, the first end of the pen holder 1 is provided with a mounting hole 14; the pen core 3 is arranged in the pen holder 1, the pen cap 2 is arranged in the mounting hole 14 and is configured to push the pen core 3 to slide in the pen body 1, the thermally erasable head 4 is annular in structure, and the inner wall of the thermally erasable head 4 is provided with a snap-fitting portion 41 and a positioning fitting portion 42; the thermally erasable head 4 is sleeved on the first end portion of the pen body 1, the snap-fitting portion 12 is snap-fitted with the snap-fitting portion 41, and the positioning portion 13 is connected with the positioning fitting portion 42 and is configured to limit the thermally erasable head 4 from rotating relative to the pen body 1.

[0029] Specifically, the pen barrel 1 of the push-type thermal erasable pen of this embodiment is equipped with a pen core 3 and a pen cap 2. In actual use, the user can press the pen cap 2 to extend the tip of the pen core 3 from the pen head extension hole 11 to perform writing operations; after pressing the pen cap 2 again, the pen core 3 can be retracted into the pen barrel 1. For the structural configuration of the push-type thermal erasable pen to extend and retract the pen core 3 by pressing the pen cap 2, reference can be made to the push pen in the prior art, and no limitation or redundant description will be made again.

[0030] Among them, for the thermally erasable head 4 installed on the first end of the pen barrel 1, in order to ensure the installation reliability during use, the thermally erasable head 4 is connected to the clamping part 12 on the pen barrel 1 through the clamping fitting part 41, so that the thermally erasable head 4 is clamped on the pen barrel 1. During use, when the user needs to use the thermally erasable head 4 to rub the paper to eliminate the handwriting, the thermally erasable head 4 is frequently subjected to force. Due to the mutual cooperation between the positioning part 13 and the positioning fitting part 42, the thermally erasable head 4 will not rotate relative to the pen barrel 1, thereby improving the assembly reliability and improving the user experience.

[0031] In some embodiments, there are various structural forms for the positioning portion 13 and the positioning matching portion 42 .

[0032] For example, the positioning portion 13 is a first positioning rib provided on the first end portion of the pen barrel 1, and the positioning matching portion 42 is a first positioning groove provided on the inner wall of the thermally erasable head 4; wherein the first positioning rib is located in the first positioning groove.

[0033] Specifically, the positioning portion 13 adopts a first positioning rib, which extends on the outer wall of the pen barrel 1 along the length direction of the pen barrel 1. Correspondingly, a first positioning groove is provided on the inner wall of the thermally erasable head 4. After the thermally erasable head 4 is clamped onto the pen barrel 1, the first positioning rib is inserted into the first positioning groove to limit the rotation of the thermally erasable head 4 relative to the pen barrel 1.

[0034] Furthermore, the clamping portion 12 is a first clamping rib provided on the first end portion of the pen barrel 1, and the clamping fitting portion 41 is a first clamping groove provided on the inner wall of the thermally erasable head 4, and the first clamping rib is clamped in the first clamping groove.

[0035] Specifically, the clamping portion 12 may be a first clamping rib, and correspondingly, the clamping matching portion 41 is a first clamping groove. The first clamping rib and the first clamping groove are clamped together to enable the thermal erasable head 4 to be assembled on the pen barrel 1.

[0036] Preferably, a plurality of the first positioning ribs are provided on the first end of the pen barrel 1, and the first clamping groove is provided between two adjacent first positioning ribs; a plurality of the first positioning grooves are provided on the inner wall of the thermally erasable head 4, and the clamping groove is provided between two adjacent first positioning grooves.

[0037] Specifically, a plurality of first positioning ribs are provided on the pen body 1 to better start the positioning of the thermally erasable head 4, and the first card slot is located between the two first positioning ribs. During assembly, the first positioning rib and the first positioning slot cooperate to play a guiding role, so that the first clamp can be smoothly and securely installed in the corresponding first card slot.

[0038] Furthermore, the outer surface of the first positioning rib is an inclined surface, and the inclined surface extends from the first end portion to the second end portion of the pen shaft 1 in an inclined direction toward the outer side of the pen shaft 1 .

[0039] Specifically, since the first end of the pen barrel 1 is used as the writing end and is usually in a tapered structure, the shape of the thermally erasable head 4 is also designed to match the first end of the pen barrel 1. The height of the first positioning rib protruding from the pen barrel 1 is set to be gradually increased, so that it can better cooperate with the first positioning groove formed on the inner wall of the thermally erasable head 4. After being assembled in place, the inclined surface can better fit the surface of the first positioning groove to improve the assembly quality.

[0040] In another embodiment, the positioning portion 13 can also be designed as a second positioning groove provided on the first end of the pen barrel 1, and the positioning matching portion 42 is a second positioning rib provided on the inner wall of the thermally erasable head 4; wherein the second positioning rib is located in the second positioning groove. Similarly, the clamping portion 12 can be designed as a second clamping groove provided on the first end of the pen barrel 1, and the clamping matching portion 41 is a second clamping rib provided on the inner wall of the thermally erasable head 4, and the second clamping rib is clamped in the second clamping groove.

[0041] Furthermore, the first end of the pen barrel 1 is also provided with a raised annular support portion 15, which is arranged on the outside of the clamping portion 12 and the positioning portion 13 and adjacent to the pen tip extension hole 11, and the annular support portion 15 abuts against the inner wall of the thermally erasable head 4.

[0042] Specifically, since the thermally erasable head 4 will be subjected to a certain pressure when wiping paper, in order to prevent the thermally erasable head 4 from tilting or even falling off during the wiping process, an annular support portion 15 is provided on the pen body 1. The annular support portion 15 will abut against the inner wall of the thermally erasable head 4 to ensure that the annular support portion 15 provides reliable support for the thermally erasable head 4.

[0043] An annular supporting fitting portion 43 is further provided on the inner wall of the thermal erasable head 4 , and the annular supporting portion 15 abuts against the annular supporting fitting portion 43 .

[0044] Specifically, after the thermally erasable head 4 is assembled onto the pen barrel 1, the annular support portion 15 will abut against the annular support fitting portion 43, so that the pen barrel 1 provides a reliable support force for the thermally erasable head 4, thereby ensuring that the thermally erasable head 4 will not be skewed when used to erase handwriting.

[0045] For the annular support fitting portion 43, the annular support fitting portion 43 is a support groove provided on the inner wall of the thermally erasable head 4, and the annular support portion 15 is located in the support groove. Alternatively, the annular support fitting portion 43 is a step surface provided on the inner wall of the thermally erasable head 4, and the annular support portion 15 abuts against the step surface.

[0046] The technical solution of the utility model has the following technical effects compared with the prior art: by arranging a snap-fitting part and a positioning part on the pen barrel, correspondingly, a snap-fitting part and a positioning matching part are arranged on the inner wall of the thermally erasable head, the snap-fitting part and the snap-fitting part cooperate with each other to satisfy the requirement of assembling the thermally erasable head on the pen barrel, and the positioning part and the positioning matching part cooperate with each other so that the thermally erasable head can be restricted from rotating relative to the pen barrel after the thermally erasable head is assembled. In this way, when the user rubs the surface of the paper with the thermally erasable head during use, the thermally erasable head is restricted by the positioning part and the positioning matching part so that the thermally erasable head will not rotate relative to the pen barrel, thereby improving the assembly reliability of the push-type thermally erasable pen to improve the user experience.

[0047] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A click-type thermal erasable pen, characterized in that: include: A pen barrel, a pen cap, a pen core and a heat-erasable head, wherein the first end of the pen barrel is provided with a pen head extension hole, and the first end of the pen barrel is also provided with a clamping portion and a positioning portion, the positioning portion is extended and arranged along the length direction of the pen barrel, the clamping portion and the positioning portion are cross-arranged, and the first end of the pen barrel is provided with a mounting hole; the pen core is arranged in the pen barrel, the pen cap is arranged in the mounting hole and is configured to push the pen core to slide in the pen barrel, the heat-erasable head is annular in structure, and the inner wall of the heat-erasable head is provided with a clamping fitting portion and a positioning fitting portion; the heat-erasable head is sleeved on the first end of the pen barrel, the clamping portion is clamped together with the clamping fitting portion, and the positioning portion is connected together with the positioning fitting portion and is configured to limit the heat-erasable head from rotating relative to the pen barrel.

2. The push-type thermal erasable pen according to claim 1, characterized in that: The positioning portion is a first positioning rib arranged on the first end portion of the pen barrel, and the positioning matching portion is a first positioning groove arranged on the inner wall of the thermally erasable head; wherein the first positioning rib is located in the first positioning groove.

3. The push-type thermal erasable pen according to claim 2, characterized in that: The clamping part is a first clamping rib arranged on the first end of the pen body, and the clamping matching part is a first clamping groove arranged on the inner wall of the thermal erasable head, and the first clamping rib is clamped in the first clamping groove.

4. The push-type thermal erasable pen according to claim 3, characterized in that: A plurality of the first positioning ribs are arranged on the first end of the pen holder, and the first clamping groove is arranged between two adjacent first positioning ribs; A plurality of the first positioning grooves are arranged on the inner wall of the thermal erasable head, and the clamping groove is arranged between two adjacent first positioning grooves.

5. The push-type thermal erasable pen according to claim 2, characterized in that: The outer surface of the first positioning rib is an inclined surface, and the inclined surface extends from the first end to the second end of the pen shaft and is inclined toward the outer side of the pen shaft.

6. The push-type thermal erasable pen according to claim 1, characterized in that: The positioning portion is a second positioning groove arranged on the first end portion of the pen barrel, and the positioning matching portion is a second positioning rib arranged on the inner wall of the thermally erasable head; wherein the second positioning rib is located in the second positioning groove.

7. The push-type thermal erasable pen according to claim 6, characterized in that: The clamping part is a second clamping groove arranged on the first end of the pen body, and the clamping matching part is a second clamping rib arranged on the inner wall of the thermal erasable head, and the second clamping rib is clamped in the second clamping groove.

8. The push-type thermal erasable pen according to any one of claims 1 to 7, characterized in that: The first end of the pen barrel is also provided with a raised annular support portion, which is arranged on the outside of the clamping portion and the positioning portion and adjacent to the pen tip extension hole, and abuts against the inner wall of the thermally erasable tip.

9. The push-type thermal erasable pen according to claim 8, characterized in that: An annular supporting fitting portion is also provided on the inner wall of the thermal erasable head, and the annular supporting portion abuts against the annular supporting fitting portion.

10. The push-type thermal erasable pen according to claim 9, characterized in that: The annular supporting matching portion is a supporting groove arranged on the inner wall of the thermally erasable head, and the annular supporting portion is located in the supporting groove; Alternatively, the annular supporting fitting portion is a step surface arranged on the inner wall of the thermally erasable head, and the annular supporting portion abuts against the step surface.

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