pen

Abstract

The utility model discloses a kind of pens, including shell and refill with nib;Shell is equipped with the accommodating cavity matched with refill in, and the upper and lower ends of shell are equipped with first opening and second opening matched with nib respectively;Refill is loaded into accommodating cavity from first opening;The outer side wall of refill is equipped with locking portion, and the inner side wall of shell is equipped with locking portion matched with locking portion. This pen when using, when refill is used up, only needs to operate refill relative to shell movement, i. e. locking portion and locking portion cooperation portion can be unlocked, new refill is loaded into accommodating cavity from first opening again, and operate refill relative to shell movement again, i. e. locking portion and locking portion cooperation portion can be locked, shell and refill are locked together, the replacement of refill is completed, and it is more convenient to use.

Description

Technical Field

[0001] This utility model relates to a pen. Background Technology

[0002] As a basic writing tool, the basic structure of a pen includes a casing and a refill inside the casing.

[0003] Traditional pens require disassembling the casing to replace the refill when it runs out, which is inconvenient. Utility Model Content

[0004] Therefore, it is necessary to provide a pen that can solve the above problems.

[0005] A pen, comprising a casing and a refill with a nib;

[0006] The outer shell has a receiving cavity that matches the pen refill. The upper and lower ends of the outer shell are respectively provided with a first opening and a second opening that matches the pen tip. Both the first opening and the second opening are in communication with the receiving cavity.

[0007] The pen refill is inserted into the receiving cavity through the first opening;

[0008] The outer side wall of the pen refill is provided with a locking part, and the inner side wall of the outer shell is provided with a locking engagement part that matches the locking part;

[0009] When the pen refill is inserted into the receiving cavity through the first opening, the pen refill moves relative to the outer shell, thereby locking or unlocking the locking part and the locking engagement part. When the locking part and the locking engagement part are locked, the outer shell and the pen refill are locked together.

[0010] In one embodiment, when the pen refill is inserted into the receiving cavity through the first opening, the pen refill rotates relative to the outer casing, thereby locking or unlocking the locking part and the locking engagement part.

[0011] In one embodiment, the locking part and the locking engagement part are respectively one of a protrusion and a groove.

[0012] In one embodiment, the protrusion is block-shaped and the groove is strip-shaped.

[0013] In one embodiment, the groove includes a longitudinal segment and a circumferential segment, the protrusion slides into the longitudinal segment from one end away from the circumferential segment, and slides sequentially along the longitudinal segment and the circumferential segment to one end of the circumferential segment away from the longitudinal segment.

[0014] In one embodiment, the locking part is an external thread, and the locking mating part is an internal thread.

[0015] In one embodiment, the locking part is located above the outer wall of the pen refill, and the locking engagement part is located above the inner wall of the housing.

[0016] The pen refill has an operating part on the side wall at the top, which is exposed when the pen refill is inserted into the receiving cavity.

[0017] In one embodiment, the pen further includes a reset member connected to the outer casing and the pen refill respectively, and the reset member causes the pen refill to tend to move away from the outer casing. When the locking part and the locking engagement part are unlocked, the reset member drives the pen refill to move in a direction away from the outer casing.

[0018] In one embodiment, the housing includes a cylindrical body, a cylindrical pressing element, and a pressing telescopic assembly;

[0019] The cylindrical pressing member is slidably sleeved with the upper end of the cylindrical body, and part of the cylindrical pressing member is exposed outside the outer shell;

[0020] The first opening is located at the upper end of the cylindrical pressing member, the second opening is located at the lower end of the cylindrical body, the locking fitting part is provided on the cylindrical pressing member, the interior of the cylindrical pressing member and the interior of the cylindrical body together form the receiving cavity, and the pen tip of the pen refill is inserted into the cylindrical body after passing through the cylindrical pressing member;

[0021] The press-and-extend assembly is disposed between the upper end of the cylindrical press member and the cylindrical body. The cylindrical body, the cylindrical press member, the press-and-extend assembly, and the reset member cooperate to realize the press-and-extend of the pen refill.

[0022] In one embodiment, the cylindrical pressing member is sleeved inside the upper end of the cylindrical body, and the pressing telescopic assembly includes a driving block disposed on the outside of the cylindrical pressing member and a pressing telescopic structure disposed on the inside of the upper end of the cylindrical body.

[0023] When this pen is in use, once the pen tip is used up, simply moving the pen tip relative to the outer casing will unlock the locking part and the locking engagement part. Then, inserting a new pen tip into the receiving cavity through the first opening and moving the pen tip relative to the outer casing again will lock the locking part and the locking engagement part together, thus completing the replacement of the pen tip.

[0024] Compared with traditional pens, the pen of this invention allows for replacement of the pen refill without disassembling the outer casing after the refill is used up, making it more convenient to use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the pen in one direction according to the first embodiment.

[0026] Figure 2 For example Figure 1 The diagram shows a partial exploded view of the pen in one direction.

[0027] Figure 3 For example Figure 1 The diagram shows a further breakdown of the pen's structure in one direction.

[0028] Figure 4 For example Figure 1 The diagram shows the structure of the cylindrical pressing part of the pen from another direction.

[0029] Figure 5 For example Figure 1 A schematic diagram of the cylindrical body of the pen from another direction.

[0030] Figure 6 This is a schematic diagram of the pen in one direction according to the second embodiment.

[0031] Figure 7 For example Figure 6 The diagram shows a partial exploded view of the pen in one direction. Detailed Implementation

[0032] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0033] like Figure 1 , Figure 2 and Figure 3 The pen 100 of the first embodiment shown includes a housing 120 and a pen refill 160 having a pen tip 162.

[0034] The outer casing 120 has a receiving cavity that matches the pen refill 160. The upper and lower ends of the outer casing 120 are respectively provided with a first opening 101 and a second opening 102 that matches the pen tip 162. Both the first opening 101 and the second opening 102 are connected to the receiving cavity.

[0035] The pen refill 160 is inserted into the receiving cavity through the first opening 101.

[0036] The outer side wall of the pen refill 160 is provided with a locking part 164, and the inner side wall of the outer casing 120 is provided with a locking engagement part 1222 that matches the locking part 164.

[0037] When the pen refill 160 is inserted into the receiving cavity through the first opening 101, the pen refill 160 moves relative to the outer shell 120, thereby locking or unlocking the locking part 164 and the locking engagement part 1222. When the locking part 164 and the locking engagement part 1222 are locked, the outer shell 120 and the pen refill 160 are locked together.

[0038] When using this pen 100, after the pen refill 160 is used up, simply move the pen refill 160 relative to the outer casing 120 to unlock the locking part 164 and the locking engagement part 1222, and insert the new pen refill 160 back into the receiving cavity through the first opening 101. Move the pen refill 160 relative to the outer casing 120 again to lock the locking part 164 and the locking engagement part 1222, locking the outer casing 120 and the pen refill 160 together, thus completing the replacement of the pen refill 160.

[0039] Compared with traditional pens, the pen 100 of this invention allows for replacement of the pen refill 160 without disassembling the outer casing 120 after the refill 160 is used up, making it more convenient to use.

[0040] Preferably, referring to the accompanying drawings, in this embodiment, when the pen refill 160 is inserted into the receiving cavity through the first opening 101, the pen refill 160 rotates relative to the outer casing 120, thereby locking or unlocking the locking part 164 and the locking engagement part 1222.

[0041] Preferably, in conjunction with the accompanying drawings, in this embodiment, the locking part 164 and the locking engagement part 1222 are respectively one of a protrusion and a groove.

[0042] More preferably, in conjunction with the accompanying drawings, in this embodiment, the protrusion is block-shaped and the groove is strip-shaped.

[0043] Specifically, combined Figure 4 In this embodiment, the groove includes a longitudinal section 1224 and a circumferential section 1226. The protrusion slides in from the end of the longitudinal section 1224 away from the circumferential section 1226, and slides sequentially along the longitudinal section 1224 and the circumferential section 1226 to the end of the circumferential section 1226 away from the longitudinal section 1224.

[0044] When the protrusion slides to the end of the circumferential segment 1226 away from the longitudinal segment 1224, the locking part 164 and the locking engagement part 1222 lock.

[0045] When the pen refill 160 rotates in the opposite direction to the outer casing 120, the protrusion slides from the end of the circumferential segment 1226 away from the longitudinal segment 1224 along the circumferential segment 1226 to the end of the longitudinal segment 1224 away from the circumferential segment 1226, and then the protrusion slides along the longitudinal segment 1224, thereby unlocking the locking part 164 and the locking engagement part 1222.

[0046] Referring to the accompanying drawings, in this embodiment, the locking part 164 is located above the outer side wall of the pen refill 160, and the locking engagement part 1222 is located above the inner side wall of the outer casing 120.

[0047] Preferably, in this embodiment, the side wall at the top of the pen refill 160 is provided with an operation part 166, which is exposed when the pen refill 160 is inserted into the receiving cavity.

[0048] More preferably, in this embodiment, the operation part 166 has a concave-convex structure.

[0049] Specifically, referring to the accompanying drawings, in this embodiment, the operating part 166 consists of a plurality of longitudinally arranged strip-shaped protrusions.

[0050] Preferably, in this embodiment, the pen 100 further includes a reset member 140.

[0051] The reset member 140 is connected to the outer shell 120 and the pen refill 160 respectively, and the reset member 140 causes the pen refill 160 to tend to move away from the outer shell 120. When the locking part 164 and the locking engagement part 1222 are unlocked, the reset member 140 drives the pen refill 160 to move in a direction away from the outer shell 120.

[0052] When the pen 100 is in use, after the pen tip 160 is used up, simply move the pen tip 160 relative to the outer casing 120 to unlock the locking part 164 and the locking engagement part 1222. At this time, the reset member drives the pen tip 160 to move in a direction away from the outer casing 120.

[0053] Referring to the accompanying drawings, in this embodiment, the reset member 140 is a spring sleeved around the pen refill 160. After the pen refill 160 is inserted into the receiving cavity through the first opening 101, the reset member 140 is elastically compressed, thereby causing the pen refill 160 to tend to move away from the outer casing 120.

[0054] In other embodiments, the reset member 140 may also be other elastic structures or two mutually repulsive magnets.

[0055] Preferably, in this embodiment, the outer shell 120 includes a cylindrical body 122, a cylindrical pressing member 124, and a pressing telescopic assembly.

[0056] The cylindrical pressing member 124 is slidably sleeved with the upper end of the cylindrical body 122, and part of the cylindrical pressing member 124 is exposed outside the outer shell 120.

[0057] The first opening 101 is located at the upper end of the cylindrical pressing member 124, and the second opening 102 is located at the lower end of the cylindrical body 122. The interior of the cylindrical pressing member 124 and the interior of the cylindrical body 122 together form a receiving cavity. The locking fitting part 1222 is provided on the cylindrical pressing member 124. The pen tip 162 of the pen refill 160 passes through the cylindrical pressing member 124 and is inserted into the cylindrical body 122.

[0058] The press-and-extend assembly is located between the upper end of the cylindrical press member 124 and the cylindrical body 122. The cylindrical body 122, the cylindrical press member 124, the press-and-extend assembly and the reset member 140 work together to realize the press-and-extend of the pen refill 160.

[0059] Combination Figure 5 In this embodiment, the cylindrical pressing member 124 is sleeved inside the upper end of the cylindrical body 122, and the pressing telescopic assembly includes a driving block 126 disposed on the outer side of the cylindrical pressing member 124 and a pressing telescopic structure 128 disposed on the inner side of the upper end of the cylindrical body 122.

[0060] The drive block 126 and the press-to-retract structure 128 cooperate to realize the press-to-retract mechanism of the pen refill 140. At this time, the pen 100 of this invention is a press-to-retract pen.

[0061] Specifically, referring to the accompanying drawings, the press-and-telescopic assembly also includes a rotating ring 125 rotatably sleeved on the outside of the cylindrical press member 124, and a drive block 126 is disposed on the rotating ring 125.

[0062] Since the specific principle of the press-and-retract component has been disclosed in the applicant's prior patent application, it will not be repeated in this utility model.

[0063] like Figure 6 and Figure 7 The pen 200 of the second embodiment shown includes a housing 220 and a pen refill 260 having a pen tip 262.

[0064] The outer casing 220 has a receiving cavity that matches the pen refill 260. The upper and lower ends of the outer casing 220 are respectively provided with a first opening 201 and a second opening 202 that matches the pen tip 262. Both the first opening 201 and the second opening 202 are connected to the receiving cavity.

[0065] The pen refill 260 is inserted into the receiving cavity through the first opening 201.

[0066] The outer side wall of the pen refill 260 is provided with a locking part 264, and the inner side wall of the outer casing 220 is provided with a locking engagement part 2222 that matches the locking part 264.

[0067] When the pen refill 260 is inserted into the receiving cavity through the first opening 201, the pen refill 260 moves relative to the outer shell 220, thereby locking or unlocking the locking part 264 and the locking engagement part 2222. When the locking part 264 and the locking engagement part 2222 are locked, the outer shell 220 and the pen refill 260 are locked together.

[0068] When using this pen 200, after the pen refill 260 is used up, simply move the pen refill 260 relative to the outer casing 220 to unlock the locking part 264 and the locking engagement part 2222, and insert the new pen refill 260 back into the receiving cavity through the first opening 201. Move the pen refill 260 relative to the outer casing 220 again to lock the locking part 264 and the locking engagement part 2222, locking the outer casing 220 and the pen refill 260 together, thus completing the replacement of the pen refill 260.

[0069] Compared with traditional pens, the pen 200 of this invention allows for replacement of the pen refill 260 without disassembling the outer casing 220 after the refill 260 is used up, making it more convenient to use.

[0070] Preferably, referring to the accompanying drawings, in this embodiment, when the pen refill 260 is inserted into the receiving cavity through the first opening 201, the pen refill 260 rotates relative to the outer casing 220, thereby locking or unlocking the locking part 264 and the locking engagement part 2222.

[0071] Preferably, in conjunction with the accompanying drawings, in this embodiment, the locking part 264 and the locking engagement part 2222 are respectively one of a protrusion and a groove.

[0072] Specifically, in this embodiment, the locking part 264 has an external thread, and the locking mating part 2222 has an internal thread.

[0073] When the pen refill 260 rotates in the opposite direction to the outer casing 220, the locking part 264 and the locking engagement part 2222 can be unlocked.

[0074] Referring to the accompanying drawings, in this embodiment, the locking part 264 is located above the outer side wall of the pen refill 260, and the locking engagement part 2222 is located above the inner side wall of the outer casing 220.

[0075] Preferably, in this embodiment, the side wall at the top of the pen refill 260 is provided with an operation part 266, which is exposed when the pen refill 260 is inserted into the receiving cavity.

[0076] More preferably, in this embodiment, the operation part 266 has a concave-convex structure.

[0077] Specifically, referring to the accompanying drawings, in this embodiment, the operating part 266 consists of a plurality of longitudinally arranged strip-shaped protrusions.

[0078] Preferably, in this embodiment, the pen 200 further includes a reset member 240.

[0079] The reset member 240 is connected to the outer shell 220 and the pen refill 260 respectively, and the reset member 240 causes the pen refill 260 to tend to move away from the outer shell 220. When the locking part 264 and the locking engagement part 2222 are unlocked, the reset member 240 drives the pen refill 260 to move in a direction away from the outer shell 220.

[0080] When the pen 200 is in use, after the pen tip 260 is used up, simply move the pen tip 260 relative to the outer casing 220 to unlock the locking part 264 and the locking engagement part 2222. At this time, the reset member 240 drives the pen tip 260 to move in a direction away from the outer casing 220.

[0081] Referring to the accompanying drawings, in this embodiment, the reset member 240 is a spring sleeved around the pen refill 260. After the pen refill 260 is inserted into the receiving cavity through the first opening 201, the reset member 240 is elastically compressed, thereby causing the pen refill 260 to tend to move away from the outer casing 220.

[0082] In other embodiments, the reset member 240 may also be other elastic structures or two mutually repulsive magnets.

[0083] Preferably, in this embodiment, the pen 200 can be a press-and-retract pen. In this case, the outer shell 220 includes a cylindrical body 222, a cylindrical pressing member 224, and a press-and-retract assembly. The cylindrical pressing member 224 is slidably sleeved with the upper end of the cylindrical body 222, and part of the cylindrical pressing member 224 is exposed outside the outer shell 220.

[0084] The cylindrical pressing member 224 is slidably sleeved with the upper end of the cylindrical body 222, and part of the cylindrical pressing member 224 is exposed outside the outer shell 220.

[0085] The first opening 201 is located at the upper end of the cylindrical pressing member 224, and the second opening 202 is located at the lower end of the cylindrical body 222. The interior of the cylindrical pressing member 224 and the interior of the cylindrical body 222 together form a receiving cavity. The locking fitting part 2222 is provided on the cylindrical pressing member 224. The pen tip 262 of the pen refill 260 passes through the cylindrical pressing member 224 and is inserted into the cylindrical body 222.

[0086] The press-and-extend assembly is located between the upper end of the cylindrical press member 224 and the cylindrical body 222. The cylindrical body 222, the cylindrical press member 224, the press-and-extend assembly and the reset member 240 work together to realize the press-and-extend of the pen refill 260.

[0087] Specifically, the press-to-retract principle of the Pen 200 is basically the same as that of the Pen 100.

[0088] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0089] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0090] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," 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," "below," and "under" 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.

[0091] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pen, characterized in that, Includes the outer casing and the pen refill with the nib; The outer shell has a receiving cavity that matches the pen refill. The upper and lower ends of the outer shell are respectively provided with a first opening and a second opening that matches the pen tip. Both the first opening and the second opening are in communication with the receiving cavity. The pen refill is inserted into the receiving cavity through the first opening; The outer side wall of the pen refill is provided with a locking part, and the inner side wall of the outer shell is provided with a locking engagement part that matches the locking part; When the pen refill is inserted into the receiving cavity through the first opening, the pen refill moves relative to the outer shell, thereby locking or unlocking the locking part and the locking engagement part. When the locking part and the locking engagement part are locked, the outer shell and the pen refill are locked together.

2. The pen according to claim 1, characterized in that, When the pen refill is inserted into the receiving cavity through the first opening, the pen refill rotates relative to the outer shell, thereby locking or unlocking the locking part and the locking engagement part.

3. The pen according to claim 2, characterized in that, The locking part and the locking engagement part are respectively one of a protrusion and a groove.

4. The pen according to claim 3, characterized in that, The protrusion is block-shaped, and the groove is strip-shaped.

5. The pen according to claim 4, characterized in that, The groove includes a longitudinal section and a circumferential section. The protrusion slides into the longitudinal section from the end away from the circumferential section, and slides sequentially along the longitudinal section and the circumferential section to the end of the circumferential section away from the longitudinal section.

6. The pen according to claim 3, characterized in that, The locking part has an external thread, and the locking mating part has an internal thread.

7. The pen according to claim 3, characterized in that, The locking part is located above the outer side wall of the pen refill, and the locking engagement part is located above the inner side wall of the outer casing; The pen refill has an operating part on the side wall at the top, which is exposed when the pen refill is inserted into the receiving cavity.

8. The pen according to any one of claims 1 to 7, characterized in that, The pen also includes a reset member, which is connected to the outer shell and the pen tip respectively. The reset member causes the pen tip to tend to move away from the outer shell. When the locking part and the locking engagement part are unlocked, the reset member drives the pen tip to move in a direction away from the outer shell.

9. The pen according to claim 8, characterized in that, The outer shell includes a cylindrical body, a cylindrical pressing element, and a pressing telescopic assembly; The cylindrical pressing member is slidably sleeved with the upper end of the cylindrical body, and part of the cylindrical pressing member is exposed outside the outer shell; The first opening is located at the upper end of the cylindrical pressing member, the second opening is located at the lower end of the cylindrical body, the locking fitting part is provided on the cylindrical pressing member, the interior of the cylindrical pressing member and the interior of the cylindrical body together form the receiving cavity, and the pen tip of the pen refill is inserted into the cylindrical body after passing through the cylindrical pressing member; The press-and-extend assembly is disposed between the upper end of the cylindrical press member and the cylindrical body. The cylindrical body, the cylindrical press member, the press-and-extend assembly, and the reset member cooperate to realize the press-and-extend of the pen refill.

10. The pen according to claim 9, characterized in that, The cylindrical pressing member is sleeved inside the upper end of the cylindrical body, and the pressing telescopic assembly includes a driving block disposed on the outside of the cylindrical pressing member and a pressing telescopic structure disposed on the inner side of the upper end of the cylindrical body.

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