pen

Abstract

This utility model discloses a pen, including a shell, an unlocking component, a first resetting component, and a pen refill with a tip. The shell has a receiving cavity that matches the pen refill. The upper and lower ends of the shell each have a first opening and a second opening that matches the pen tip, respectively. The side wall of the shell has an installation port. The pen refill is inserted into the receiving cavity through the first opening. The first resetting component connects the shell and the pen refill, and the first resetting component causes the pen refill to tend to move away from the shell. The unlocking component is movably disposed at the installation port. The outer side wall of the pen refill has a locking part that matches the unlocking component. The unlocking component moves relative to the shell, thereby locking or unlocking the unlocking component and the locking part. When the pen refill is used up, simply moving the unlocking component relative to the shell unlocks the unlocking component and the locking part, allowing a new pen refill to be inserted into the receiving cavity through the first opening, locking the unlocking component and the locking part, thus completing the pen refill replacement.

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 includes a casing, an unlocking component, a first resetting component, and a pen refill with a nib;

[0006] The outer casing has a receiving cavity that matches the pen refill. The upper and lower ends of the outer casing have a first opening and a second opening that matches the pen tip, respectively. The side wall of the outer casing has a mounting port. The first opening, the second opening, and the mounting port are all in communication with the receiving cavity.

[0007] The pen refill is inserted into the receiving cavity through the first opening. The first reset member connects the outer shell and the pen refill respectively, and the first reset member causes the pen refill to tend to move away from the outer shell.

[0008] The unlocking member is movably disposed in the mounting port, and the outer side wall of the pen refill is provided with a locking part that matches the unlocking member. The unlocking member moves relative to the housing, thereby locking or unlocking the unlocking member with the locking part. When the unlocking member is locked with the locking part, the housing, the unlocking member, and the locking part are locked together. When the unlocking member is unlocked with the locking part, the first reset member drives the pen refill to move in a direction away from the housing.

[0009] In one embodiment, the unlocking element includes a locking engagement portion located within the receiving cavity and matching the locking portion, and an operating portion exposed outside the housing;

[0010] The operating part is used to drive the unlocking member to move relative to the outer shell after being operated, so that the unlocking member locks or unlocks the locking part.

[0011] In one embodiment, the unlocking element is slidably disposed at the mounting port.

[0012] In one embodiment, the locking part and the locking engagement part are respectively one of a card block and a card slot.

[0013] In one embodiment, the locking engagement part is annular and is sleeved on the outside of the pen refill.

[0014] In one embodiment, the pen further includes a second reset member, which is connected to the housing and the unlocking member respectively, and the second reset member causes the unlocking member to tend to lock with the locking part.

[0015] In one embodiment, the second reset member is a spring, and after compression, the second reset member is connected to the end of the locking engagement part away from the operating part and the inner side of the housing, respectively.

[0016] The inner side of the locking engagement portion, away from the operating portion, is used for snap-fit ​​connection with the locking portion, and the second reset member causes the inner side of the locking engagement portion, away from the operating portion, to tend to move closer to the locking portion.

[0017] In one embodiment, the unlocking member further includes an elastic portion, the elastic portion, the locking engagement portion, and the operating portion are connected in sequence, the end of the elastic portion away from the operating portion elastically abuts against the inner side of the housing, and the inner area of ​​the locking engagement portion away from the operating portion is used for snap-fit ​​connection with the locking portion.

[0018] In one embodiment, the elastic portion is strip-shaped or sheet-shaped.

[0019] In one embodiment, the elastic part, the locking engagement part, and the operating part are integrally formed.

[0020] In one embodiment, the locking engagement part is an elongated ring-shaped elastic structure, the end of the locking engagement part away from the operating part elastically abuts against the inner side of the housing, and the length direction of the locking engagement part is parallel to the movement direction of the unlocking member;

[0021] The middle part of the inner side of the locking engagement part is used to snap into the locking part, and the locking engagement part is used to unlock the unlocking part after elastic deformation.

[0022] In one embodiment, the locking engagement part is an elliptical ring.

[0023] In one embodiment, the inner upward-facing side of the locking engagement portion and / or the downward-facing side of the locking portion is a curved or arc-shaped surface.

[0024] In one embodiment, the locking part is ring-shaped.

[0025] In one embodiment, the housing includes a cylindrical body, a cylindrical pressing element, and a pressing telescopic assembly;

[0026] 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;

[0027] 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 mounting port is located on the side wall of 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 penetrates the cylindrical pressing member and is inserted into the cylindrical body;

[0028] 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 first reset member cooperate to realize the press-and-extend of the pen refill.

[0029] In one embodiment, the cylindrical pressing member is sleeved outside the upper end of the cylindrical body, and the pressing telescopic assembly includes a driving block disposed on the outer side of the upper end of the cylindrical body and a pressing telescopic structure disposed on the inner side of the cylindrical pressing member.

[0030] When this pen is in use, once the pen tip is used up, simply operate the unlocking component relative to the outer casing to unlock the unlocking component from the locking part. At this time, the first reset component drives the pen tip to move away from the outer casing, allowing a new pen tip to be inserted into the receiving cavity through the first opening. This locks the unlocking component from the locking part, and the outer casing, the unlocking component, and the locking part are locked together, completing the replacement of the pen tip.

[0031] 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

[0032] Figure 1 This is a three-dimensional structural diagram of the pen in one direction according to the first embodiment.

[0033] Figure 2 For example Figure 1 The diagram shows a partial exploded view of the pen in one direction.

[0034] Figure 3 For example Figure 1 The diagram shows a further breakdown of the pen's structure in one direction.

[0035] Figure 4 For example Figure 1 The diagram shows an enlarged view of the pen's unlocking mechanism.

[0036] Figure 5 For example Figure 1 The diagram shows an enlarged structural schematic of the cylindrical pressing component of the pen.

[0037] Figure 6 This is a three-dimensional structural diagram of the pen in one direction according to the second embodiment.

[0038] Figure 7 For example Figure 6 The diagram shows a partial exploded view of the pen in one direction.

[0039] Figure 8 For example Figure 6 The diagram shows an enlarged view of the pen's unlocking mechanism.

[0040] Figure 9 This is a three-dimensional structural diagram of the pen in one direction according to the third embodiment.

[0041] Figure 10 For example Figure 9 The diagram shows a partial exploded view of the pen in one direction.

[0042] Figure 11 For example Figure 9 The diagram shows an enlarged view of the pen's unlocking mechanism. Detailed Implementation

[0043] 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.

[0044] like Figure 1 , Figure 2 and Figure 3 The pen 100 of the first embodiment shown includes a housing 120, an unlocking member 140, a first reset member 160, and a pen refill 180 having a pen tip 182.

[0045] The outer casing 120 has a receiving cavity that matches the pen refill 180. 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 182. The side wall of the outer casing 120 is provided with a mounting port 103. The first opening 101, the second opening 102 and the mounting port 103 are all in communication with the receiving cavity.

[0046] The pen refill 180 is inserted into the receiving cavity through the first opening 101. The first reset member 160 is connected to the outer shell 120 and the pen refill 180 respectively, and the first reset member 160 causes the pen refill 180 to tend to move away from the outer shell 120.

[0047] The unlocking member 140 is movably disposed in the mounting port 103. The outer side wall of the pen refill 180 is provided with a locking part 184 that matches the unlocking member 140. The unlocking member 140 moves relative to the housing 120, thereby locking or unlocking the unlocking member 140 and the locking part 184. When the unlocking member 140 and the locking part 184 are locked, the housing 120, the unlocking member 140 and the locking part 184 are locked together. When the unlocking member 140 and the locking part 184 are unlocked, the first reset member 160 drives the pen refill 180 to move in a direction away from the housing 120.

[0048] When the pen 100 is in use, after the pen refill 180 is used up, simply operate the unlocking member 140 to move relative to the outer casing 120, which will unlock the unlocking member 140 from the locking part 184. At this time, the first reset member 160 drives the pen refill 180 to move away from the outer casing 120, and insert the new pen refill 180 into the receiving cavity through the first opening 101. This will lock the unlocking member 140 and the locking part 184 together, and the outer casing 120, the unlocking member 140 and the locking part 184 will be locked together, thus completing the replacement of the pen refill 180.

[0049] Compared with traditional pens, the pen 100 of this invention allows for replacement of the pen refill 180 without disassembling the outer casing 120 after the refill 180 is used up, making it more convenient to use.

[0050] Preferred, combined Figure 4 In this embodiment, the unlocking member 140 includes a locking engagement part 142 located in the receiving cavity and matching the locking part 184, and an operating part 144 exposed outside the housing 120.

[0051] The operating unit 144 is used to drive the unlocking member 140 to move relative to the housing 120 after being operated, thereby locking or unlocking the unlocking member 140 with the locking unit 184.

[0052] Referring to the accompanying drawings, in this embodiment, the unlocking element 140 is slidably disposed at the mounting port 103.

[0053] Preferably, in this embodiment, the locking part 184 is a slot and the locking engagement part 142 is a block. In other embodiments, the locking part 184 may be a block and the locking engagement part 142 may be a slot.

[0054] More preferably, in this embodiment, the locking engagement part 142 is annular and is sleeved on the outside of the pen refill 180.

[0055] Referring to the accompanying drawings, in this embodiment, the first reset member 160 is a spring sleeved around the pen refill 180. After the pen refill 180 is inserted into the receiving cavity through the first opening 101, the first reset member 160 is elastically compressed, thereby causing the pen refill 180 to tend to move away from the outer casing 120.

[0056] In other embodiments, the first reset member 160 may also be other elastic structures or two mutually repulsive magnets.

[0057] Specifically, in this embodiment, the unlocking component 140 is an integrally molded injection molded part.

[0058] Preferably, in conjunction with the accompanying drawings, in this embodiment, the pen 100 further includes a second reset member 190, which is connected to the housing 120 and the unlocking member 140 respectively, and the second reset member 190 causes the unlocking member 140 to tend to lock with the locking part 184.

[0059] More preferably, in conjunction with the accompanying drawings, in this embodiment, the second reset member 190 is a spring, and after compression, the second reset member 190 is connected to the end of the locking engagement part 142 away from the operating part 144 and the inner side of the outer casing 120.

[0060] The area on the inner side of the locking engagement portion 142 that is away from the operating portion 144 is used for snap-fit ​​connection with the locking portion 184, and the second reset member 190 causes the area on the inner side of the locking engagement portion 142 that is away from the operating portion 144 to tend to move closer to the locking portion 184.

[0061] In other embodiments, the second reset member 190 may also be other elastic structures or two mutually repulsive magnets.

[0062] Preferably, in this embodiment, the locking part 184 is ring-shaped.

[0063] The locking part 184 is ring-shaped, which can ensure that the pen refill 180 can be inserted into the receiving cavity from the first opening 101 at any angle, and the locking part 184 of the unlocking part 140 can still be locked.

[0064] Specifically, referring to the accompanying drawings, in this embodiment, the locking part 184 is an annular groove.

[0065] Preferably, in this embodiment, the inner upward-facing side of the locking part 142 and / or the downward-facing side of the locking part 184 are curved or arc-shaped surfaces.

[0066] The inner upward side of the locking engagement part 142 and / or the downward side of the locking part 184 are curved or arc-shaped, which makes it easier for the pen refill 180 to be inserted into the receiving cavity through the first opening 101, thereby achieving the locking of the unlocking part 140 and the locking part 184.

[0067] Preferably, in this embodiment, the outer shell 120 includes a cylindrical body 122, a cylindrical pressing member 124, and a pressing telescopic assembly.

[0068] 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.

[0069] The first opening 101 is located at the upper end of the cylindrical pressing member 124, the second opening 102 is located at the lower end of the cylindrical body 122, and the mounting port 103 is located on the side wall of the cylindrical pressing member 124. The interior of the cylindrical pressing member 124 and the interior of the cylindrical body 122 together form a receiving cavity. The pen tip 182 of the pen refill 180 passes through the cylindrical pressing member 124 and is inserted into the cylindrical body 122.

[0070] 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 first reset member 160 cooperate to realize the press-and-extend of the pen refill 180.

[0071] Combination Figure 5 In this embodiment, the cylindrical pressing member 124 is sleeved on 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 upper end of the cylindrical body 122 and a pressing telescopic structure 128 disposed on the inner side of the cylindrical pressing member 124.

[0072] 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 of this invention is a press-to-retract pen.

[0073] Specifically, referring to the accompanying drawings, the press-and-retract assembly also includes a rotating ring 125 rotatably fitted on the outer side of the upper end of the cylindrical body 122, and a drive block 126 is disposed on the rotating ring 125.

[0074] Since the specific principle of the press-to-retract component has been disclosed in the applicant's prior patent application, it will not be repeated in this utility model.

[0075] like Figure 6 and Figure 7 The pen 200 of the second embodiment shown includes a housing 220, an unlocking member 240, a first reset member 260, and a pen refill 280 having a pen tip 282.

[0076] The outer casing 220 has a receiving cavity that matches the pen refill 280. 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 282. The side wall of the outer casing 220 is provided with a mounting port 203. The first opening 201, the second opening 202 and the mounting port 203 are all in communication with the receiving cavity.

[0077] The pen refill 280 is inserted into the receiving cavity through the first opening 201. The first reset member 260 is connected to the outer shell 220 and the pen refill 280 respectively, and the first reset member 260 causes the pen refill 280 to tend to move away from the outer shell 220.

[0078] The unlocking member 240 is movably disposed in the mounting port 203. The outer side wall of the pen refill 280 is provided with a locking part 284 that matches the unlocking member 240. The unlocking member 240 moves relative to the housing 220, thereby locking or unlocking the unlocking member 240 and the locking part 284. When the unlocking member 240 and the locking part 284 are locked, the housing 220, the unlocking member 240 and the locking part 284 are locked together. When the unlocking member 240 and the locking part 284 are unlocked, the first reset member 260 drives the pen refill 280 to move in a direction away from the housing 220.

[0079] When this pen 200 is in use, after the pen refill 280 is used up, simply operate the unlocking member 240 to move relative to the outer casing 220, which will unlock the unlocking member 240 from the locking part 284. At this time, the first reset member 260 drives the pen refill 280 to move away from the outer casing 220, and insert the new pen refill 280 into the receiving cavity through the first opening 201. This will lock the unlocking member 240 from the locking part 284, and lock the outer casing 220, the unlocking member 240, and the locking part 284 together, thus completing the replacement of the pen refill 280.

[0080] Compared with traditional pens, the pen 200 of this invention can replace the pen refill 280 without disassembling the outer casing 220 after the refill 280 is used up, making it more convenient to use.

[0081] Preferred, combined Figure 8 In this embodiment, the unlocking member 240 includes a locking engagement part 242 located in the receiving cavity and matching the locking part 284, and an operating part 244 exposed outside the housing 220.

[0082] The operating unit 244 is used to drive the unlocking member 240 to move relative to the housing 220 after being operated, thereby locking or unlocking the unlocking member 240 with the locking unit 284.

[0083] Referring to the accompanying drawings, in this embodiment, the unlocking element 240 is slidably disposed at the mounting port 203.

[0084] Preferably, in this embodiment, the locking part 284 is a slot and the locking engagement part 242 is a block. In other embodiments, the locking part 284 may be a block and the locking engagement part 242 may be a slot.

[0085] More preferably, in this embodiment, the locking engagement part 242 is annular and is sleeved on the outside of the pen refill 280.

[0086] Referring to the accompanying drawings, in this embodiment, the first reset member 260 is a spring sleeved around the pen refill 280. After the pen refill 280 is inserted into the receiving cavity through the first opening 201, the first reset member 260 is elastically compressed, thereby causing the pen refill 280 to tend to move away from the outer casing 220.

[0087] In other embodiments, the first reset member 260 may also be other elastic structures or two mutually repulsive magnets.

[0088] Preferred, combined Figure 8 In this embodiment, the unlocking member 240 also includes an elastic part 246. The elastic part 246, the locking engagement part 242 and the operating part 244 are connected in sequence. One end of the elastic part 246 away from the operating part 244 elastically abuts against the inner side of the housing 220. The inner side of the locking engagement part 242 away from the operating part 244 is used for snap-fit ​​connection with the locking part 284.

[0089] More preferably, in conjunction with the accompanying drawings, in this embodiment, the elastic portion 246 is strip-shaped or sheet-shaped.

[0090] In a particularly preferred embodiment, referring to the accompanying drawings, the elastic part 246, the locking part 242, and the operating part 244 are integrally molded injection molded parts.

[0091] Preferably, in this embodiment, the locking part 284 is ring-shaped.

[0092] The locking part 284 is ring-shaped, which can ensure that the pen refill 280 can be inserted into the receiving cavity from the first opening 201 at any angle, and the locking part 284 can still be locked between the unlocking part 240 and the locking part 284.

[0093] Specifically, referring to the accompanying drawings, in this embodiment, the locking part 284 is an annular groove.

[0094] Preferably, in this embodiment, the inner upward side of the locking part 242 and / or the downward side of the locking part 284 are curved or arc-shaped surfaces.

[0095] The inner upward side of the locking engagement part 242 and / or the downward side of the locking part 284 are curved or arc-shaped, which makes it easier for the pen refill 280 to be inserted into the receiving cavity through the first opening 201, thereby achieving the locking of the unlocking member 240 and the locking part 284.

[0096] 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.

[0097] The first opening 201 is located at the upper end of the cylindrical pressing member 224, the second opening 202 is located at the lower end of the cylindrical body 222, the mounting port 203 is located on the side wall of the cylindrical pressing member 224, the interior of the cylindrical pressing member 224 and the interior of the cylindrical body 222 together form a receiving cavity, and the pen tip 282 of the pen refill 280 passes through the cylindrical pressing member 224 and is inserted into the cylindrical body 222.

[0098] 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 first reset member 260 work together to realize the press-and-extend of the pen refill 280.

[0099] Specifically, the press-to-retract principle of the Pen 200 is basically the same as that of the Pen 100.

[0100] like Figure 9 and Figure 10 The pen 300 of the third embodiment shown includes a housing 320, an unlocking member 340, a first reset member 360, and a pen refill 380 having a pen tip 382.

[0101] The outer casing 320 has a receiving cavity that matches the pen refill 380. The upper and lower ends of the outer casing 320 are respectively provided with a first opening 301 and a second opening 302 that matches the pen tip 382. The side wall of the outer casing 320 is provided with a mounting port 303. The first opening 301, the second opening 302 and the mounting port 303 are all connected to the receiving cavity.

[0102] The pen refill 380 is inserted into the receiving cavity through the first opening 301. The first reset member 360 is connected to the outer shell 320 and the pen refill 380 respectively, and the first reset member 360 causes the pen refill 380 to tend to move away from the outer shell 320.

[0103] The unlocking member 340 is movably disposed in the mounting port 303. The outer side wall of the pen refill 380 is provided with a locking part 384 that matches the unlocking member 340. The unlocking member 340 moves relative to the housing 320, thereby locking or unlocking the unlocking member 340 and the locking part 384. When the unlocking member 340 and the locking part 384 are locked, the housing 320, the unlocking member 340 and the locking part 384 are locked together. When the unlocking member 340 and the locking part 384 are unlocked, the first reset member 360 drives the pen refill 380 to move in a direction away from the housing 320.

[0104] When this pen is in use, once the pen tip 380 is used up, simply operate the unlocking member 340 to move relative to the outer casing 320, which will unlock the unlocking member 340 from the locking part 384. At this time, the first reset member 360 drives the pen tip 380 to move away from the outer casing 320, and inserts the new pen tip 380 into the receiving cavity through the first opening 301, which will lock the unlocking member 340 from the locking part 384. The outer casing 320, the unlocking member 340 and the locking part 384 are locked together, completing the replacement of the pen tip 380.

[0105] Compared with traditional pens, this new type of pen allows for easy replacement of the refill 380 without disassembling the outer casing 320 after the refill 380 is used up, making it more convenient to use.

[0106] Preferred, combined Figure 11 In this embodiment, the unlocking member 340 includes a locking engagement part 342 located in the receiving cavity and matching the locking part 384, and an operating part 344 exposed outside the housing 320.

[0107] The operating unit 344 is used to drive the unlocking member 340 to move relative to the housing 320 after being operated, thereby locking or unlocking the unlocking member 340 and the locking unit 384.

[0108] Referring to the accompanying drawings, in this embodiment, the unlocking element 340 is slidably disposed at the mounting port 303.

[0109] Preferably, in this embodiment, the locking part 384 is a slot and the locking engagement part 342 is a block. In other embodiments, the locking part 384 may be a block and the locking engagement part 342 may be a slot.

[0110] More preferably, in this embodiment, the locking engagement part 342 is annular and is sleeved on the outside of the pen refill 380.

[0111] Referring to the accompanying drawings, in this embodiment, the first reset member 360 is a spring sleeved around the pen refill 380. After the pen refill 380 is inserted into the receiving cavity through the first opening 301, the first reset member 360 is elastically compressed, thereby causing the pen refill 380 to tend to move away from the outer casing 320.

[0112] In other embodiments, the first reset member 360 may also be other elastic structures or two mutually repulsive magnets.

[0113] Preferably, referring to the accompanying drawings, in this embodiment, the locking engagement part 342 is an elongated ring-shaped elastic structure. The end of the locking engagement part 342 away from the operating part 344 elastically abuts against the inner side of the outer shell 320, and the length direction of the locking engagement part 342 is parallel to the movement direction of the unlocking member 140.

[0114] The middle part of the inner side of the locking engagement part 342 is used to snap-fit ​​with the locking part 384. The locking engagement part 342 is used to unlock the unlocking part 340 from the locking part 384 after elastic deformation.

[0115] More preferably, in conjunction with the accompanying drawings, in this embodiment, the locking part 342 is an elliptical ring.

[0116] Specifically, in this embodiment, the unlocking component 340 is an integrally molded injection molded part.

[0117] Preferably, in this embodiment, the locking part 384 is ring-shaped.

[0118] The locking part 384 is ring-shaped, which can ensure that the pen refill 380 can be inserted into the receiving cavity from the first opening 301 at any angle, and the locking part 384 can still be locked between the unlocking part 340 and the locking part 384.

[0119] Specifically, referring to the accompanying drawings, in this embodiment, the locking part 384 is an annular groove.

[0120] Preferably, in this embodiment, the inner upward-facing side of the locking part 342 and / or the downward-facing side of the locking part 384 are curved or arc-shaped surfaces.

[0121] The inner upward side of the locking engagement part 342 and / or the downward side of the locking part 384 are curved or arc-shaped, which makes it easier for the pen refill 380 to be inserted into the receiving cavity through the first opening 301, thereby achieving the locking of the unlocking part 340 and the locking part 384.

[0122] Preferably, in this embodiment, the pen 300 can be a press-and-retract pen. In this case, the outer shell 320 includes a cylindrical body 322, a cylindrical pressing member 324, and a press-and-retract assembly. The cylindrical pressing member 324 is slidably sleeved with the upper end of the cylindrical body 322, and part of the cylindrical pressing member 324 is exposed outside the outer shell 320.

[0123] The first opening 301 is located at the upper end of the cylindrical pressing member 324, the second opening 302 is located at the lower end of the cylindrical body 322, and the mounting port 303 is located on the side wall of the cylindrical pressing member 324. The interior of the cylindrical pressing member 324 and the interior of the cylindrical body 322 together form a receiving cavity. The pen tip 382 of the pen refill 380 passes through the cylindrical pressing member 324 and is inserted into the cylindrical body 322.

[0124] The press-and-extend assembly is located between the upper end of the cylindrical press member 324 and the cylindrical body 322. The cylindrical body 322, the cylindrical press member 324, the press-and-extend assembly and the first reset member 360 work together to realize the press-and-extend of the pen refill 380.

[0125] Specifically, the press-to-retract principle of the Pen 300 is basically the same as that of the Pen 100.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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.

[0130] 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 by, It includes a housing, an unlocking component, a first reset component, and a pen refill with a pen tip; The outer casing has a receiving cavity that matches the pen refill. The upper and lower ends of the outer casing have a first opening and a second opening that matches the pen tip, respectively. The side wall of the outer casing has a mounting port. The first opening, the second opening, and the mounting port are all in communication with the receiving cavity. The pen refill is inserted into the receiving cavity through the first opening. The first reset member connects the outer shell and the pen refill respectively, and the first reset member causes the pen refill to tend to move away from the outer shell. The unlocking member is movably disposed in the mounting port, and the outer side wall of the pen refill is provided with a locking part that matches the unlocking member. The unlocking member moves relative to the housing, thereby locking or unlocking the unlocking member with the locking part. When the unlocking member is locked with the locking part, the housing, the unlocking member, and the locking part are locked together. When the unlocking member is unlocked with the locking part, the first reset member drives the pen refill to move in a direction away from the housing.

2. The pen according to claim 1, characterized in that, The unlocking component includes a locking engagement part located within the receiving cavity and matching the locking part, and an operating part exposed outside the housing; The operating part is used to drive the unlocking member to move relative to the outer shell after being operated, so that the unlocking member locks or unlocks the locking part.

3. The pen according to claim 2, characterized in that, The unlocking element is slidably disposed at the mounting port.

4. The pen according to claim 3, characterized in that, The locking part and the locking engagement part are respectively one of a card block and a card slot.

5. The pen according to claim 4, characterized in that, The locking part is ring-shaped and is sleeved on the outside of the pen refill.

6. The pen according to claim 5, characterized in that, The pen also includes a second reset member, which is connected to the housing and the unlocking member respectively, and the second reset member causes the unlocking member to tend to lock with the locking part.

7. The pen according to claim 6, characterized in that, The second reset member is a spring. After being compressed, the second reset member is connected to the end of the locking engagement part away from the operating part and the inner side of the outer shell, respectively. The inner side of the locking engagement portion, away from the operating portion, is used for snap-fit ​​connection with the locking portion, and the second reset member causes the inner side of the locking engagement portion, away from the operating portion, to tend to move closer to the locking portion.

8. The pen according to claim 5, characterized in that, The unlocking component also includes an elastic part, the elastic part, the locking engagement part and the operating part are connected in sequence, the end of the elastic part away from the operating part is elastically abutting against the inner side of the housing, and the inner area of ​​the locking engagement part away from the operating part is used for snap-fit ​​connection with the locking part.

9. The pen according to claim 8, characterized in that, The elastic part is strip-shaped or sheet-shaped.

10. The pen according to claim 9, characterized in that, The elastic part, the locking part, and the operating part are integrally formed.

11. The pen according to claim 5, characterized in that, The locking engagement part is a long, ring-shaped elastic structure. The end of the locking engagement part away from the operating part elastically abuts against the inner side of the outer shell, and the length direction of the locking engagement part is parallel to the movement direction of the unlocking member. The middle part of the inner side of the locking engagement part is used to snap into the locking part, and the locking engagement part is used to unlock the unlocking part after elastic deformation.

12. The pen according to claim 11, characterized in that, The locking part is elliptical.

13. The pen according to any one of claims 2 to 12, characterized in that, The inner upward-facing side of the locking part and / or the downward-facing side of the locking part are curved or arc-shaped surfaces.

14. The pen according to claim 13, characterized in that, The locking part is ring-shaped.

15. The pen according to any one of claims 1 to 12, 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 mounting port is located on the side wall of 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 penetrates the cylindrical pressing member and is inserted into the cylindrical body; 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 first reset member cooperate to realize the press-and-extend of the pen refill.

16. The pen according to claim 15, characterized in that, The cylindrical pressing member is sleeved on the upper end of the cylindrical body, and the pressing telescopic assembly includes a driving block disposed on the outer side of the upper end of the cylindrical body and a pressing telescopic structure disposed on the inner side of the cylindrical pressing member.

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