Piston retractable pen
By incorporating a cylindrical body, a cylindrical pressing component, and a resetting component into the retractable pen, the refill is allowed to slide within the receiving cavity and connected by a locking block. This solves the inconvenience of traditional retractable pens requiring the shell to be disassembled for refill replacement, thus enabling convenient refill replacement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU WUSHENG STATIONERY CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional retractable pens require disassembling the outer casing to replace the ink cartridge after it runs out, which is inconvenient.
A press-and-retract pen is designed, comprising a cylindrical body, a cylindrical pressing component, a resetting component, and a pen refill. The pen refill can be slidably inserted into the receiving cavity and is detachably connected by a locking block and a resetting component, allowing the pen refill to switch between extended and retracted states, and the pen refill can be replaced without disassembling the outer shell.
It allows for easy replacement of the pen refill without disassembling the outer casing, making it more convenient to use.
Smart Images
Figure CN224360897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a press-to-retract pen. Background Technology
[0002] As a basic writing tool, a pen's basic structure includes an outer shell and a refill inside the shell. Based on its structure, pens can be divided into fixed pens, retractable pens, and retractable pens.
[0003] Traditional retractable 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 press-to-retract pen that can solve the above problems.
[0005] A press-to-retract pen includes a cylindrical body, a cylindrical pressing component, a resetting component, and a pen tip;
[0006] The cylindrical pressing member is slidably sleeved inside the upper end of the cylindrical body, and a portion of the cylindrical pressing member is exposed outside;
[0007] The cylindrical pressing member and the cylindrical body together form a receiving cavity that matches the pen refill. The upper end of the cylindrical pressing member is provided with a first opening, and the lower end of the cylindrical body is provided with a second opening that matches the pen tip. Both the first opening and the second opening are in communication with the receiving cavity.
[0008] The pen refill passes through the first opening and is inserted into the cylindrical body after passing through the cylindrical pressing member. The pen refill and the cylindrical pressing member are detachably connected. The cylindrical pressing member and the pen refill slide together relative to the cylindrical body, so that the pen refill is in an extended state and / or a retracted state.
[0009] The reset member is connected to the pen refill and the cylindrical body respectively, and the reset member causes the cylindrical pressing member and the pen refill to have an upward tendency relative to the cylindrical body.
[0010] In one embodiment, the cylindrical pressing member has a first locking block on its side and the cylindrical body has a first through hole on its side wall. When the pen refill is in the extended state, the first locking block engages with the side wall of the first through hole.
[0011] In one embodiment, the sidewall of the cylindrical body is further provided with a second hole, which is located above the first through hole;
[0012] When the pen refill is in the retracted state, the first locking block engages with the side wall of the second hole.
[0013] In one embodiment, the line connecting the first through hole and the second hole is parallel to the axial direction of the cylindrical body.
[0014] In one embodiment, the cylindrical pressing member has a first spring piece on its side, and the first locking block is located on the side of the first spring piece facing outward.
[0015] In one embodiment, the side wall of the cylindrical pressing member is provided with a first notch, the first spring is disposed at the first notch, one end of the first spring is connected to the cylindrical pressing member, and the other end of the first spring and both sides of the first spring are separated from the cylindrical pressing member.
[0016] In one embodiment, the side wall of the cylindrical body is further provided with an unlocking part, which is disposed at the first through hole and is used to abut against the first locking block located in the first through hole.
[0017] In one embodiment, the side wall of the cylindrical body is further provided with a pen clip, and the unlocking part is located inside the pen clip.
[0018] In one embodiment, the pen refill is connected to the cylindrical pressing member by snap-fit, threaded connection, interference fit, or magnetic attraction.
[0019] In one embodiment, the side wall of the pen refill is provided with a second locking block, and the side wall of the exposed portion of the cylindrical pressing member is provided with a third through hole;
[0020] When the pen refill is inserted into the receiving cavity, the second locking block engages with the side wall of the third through hole, thereby achieving locking.
[0021] In one embodiment, the side wall of the pen refill is provided with a second notch, a second spring is provided at the second notch, and the second locking block is provided on the side of the second spring facing outward;
[0022] One end of the second spring is connected to the pen refill, while the other end and both sides of the second spring are separated from the pen refill.
[0023] In one embodiment, the press-to-retract pen further includes an unlocking component, wherein the side wall of the exposed portion of the cylindrical press-to-retract pen is provided with a fourth through hole, and the unlocking component is movably disposed in the fourth through hole;
[0024] The outer wall of the pen refill is provided with a locking part that matches the unlocking member. The unlocking member moves relative to the cylindrical pressing member, thereby locking or unlocking the unlocking member with the locking part. When the unlocking member is locked with the locking part, the cylindrical pressing member, the unlocking member, and the locking part are locked together. When the unlocking member is unlocked with the locking part, the reset member drives the pen refill to move in a direction away from the cylindrical pressing member.
[0025] In one embodiment, the unlocking member is slidably disposed in the fourth through hole, and the unlocking member includes a locking engagement portion located within the receiving cavity and matching the locking portion, and an operating portion exposed outside the cylindrical pressing member;
[0026] The operating part is used to drive the unlocking member to slide relative to the cylindrical pressing member after being operated, thereby locking or unlocking the unlocking member with the locking part.
[0027] In one embodiment, the locking part and the locking engagement part are respectively one of a card block and a card slot.
[0028] In one embodiment, the locking engagement part is annular and is sleeved on the outside of the pen refill.
[0029] In one embodiment, the press-to-retract pen further includes an auxiliary reset member, which is connected to the cylindrical press member and the unlocking member respectively, and the auxiliary reset member causes the unlocking member to tend to lock with the locking part.
[0030] In one embodiment, the auxiliary reset member is a spring, and after compression, the auxiliary reset member is connected to the end of the locking engagement part away from the operating part and the inner side of the cylindrical pressing member, respectively.
[0031] 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 auxiliary 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.
[0032] In one embodiment, the locking part is ring-shaped.
[0033] When using this press-to-retract pen, once the pen tip is used up, simply separate the detachable pen tip from the cylindrical pressing component and install a new pen tip onto the cylindrical pressing component to replace the pen tip.
[0034] Compared with traditional press-to-retractable pens, the press-to-retractable pen of this invention allows for pen refill replacement without disassembling the outer casing after the pen refill is used up, making it more convenient to use.
[0035] Preferably, the cylindrical pressing member has a first locking block on its side and the cylindrical body has a first through hole on its side wall. When the pen refill is in the extended state, the first locking block engages with the side wall of the first through hole.
[0036] At this time, when the pen tip is in the extended state, the first locking block engages with the side wall of the first through hole. Simply place any object (e.g., a fingernail, needle, etc.) against the first locking block inside the first through hole to move the first locking block inwards, thus releasing the first locking block from the first through hole. At this time, the reset member drives the cylindrical pressing member and the pen tip to move upwards relative to the cylindrical body. Pressing the cylindrical pressing member and the pen tip causes them to move downwards relative to the cylindrical body, thereby connecting the first locking block with the first through hole, thus realizing the press-to-extend function of the retractable pen. Attached Figure Description
[0037] Figure 1 This is a schematic diagram of the structure of the press-and-retract pen in one direction according to the first embodiment.
[0038] Figure 2 For example Figure 1 The diagram shows an exploded view of the retractable pen in one direction.
[0039] Figure 3 For example Figure 1 The diagram shows a schematic of the cylindrical pressing component of the retractable pen in one direction.
[0040] Figure 4 This is a schematic diagram of the structure of the press-and-retract pen in one direction according to the second embodiment.
[0041] Figure 5 For example Figure 4 The diagram shown is an exploded view of the press-to-retract pen.
[0042] Figure 6 For example Figure 4 The diagram shows the structure of the cylindrical pressing component of the telescopic pen from another direction.
[0043] Figure 7 For example Figure 4 An enlarged structural diagram of the unlocking mechanism of the press-to-retract pen from another direction. Detailed Implementation
[0044] 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.
[0045] like Figure 1 and Figure 2The first embodiment of the press-and-retract pen 100 shown includes a cylindrical body 120, a cylindrical pressing member 140, a resetting member 160, and a pen core 180 having a pen tip 182.
[0046] The cylindrical pressing member 140 is slidably sleeved inside the upper end of the cylindrical body 120, and part of the cylindrical pressing member 140 is exposed.
[0047] The cylindrical pressing member 140 and the cylindrical body 120 together form a receiving cavity that matches the pen tip 180. The upper end of the cylindrical pressing member 140 is provided with a first opening 101, and the lower end of the cylindrical body 120 is provided with a second opening 102 that matches the pen tip 182. Both the first opening 101 and the second opening 102 are connected to the receiving cavity.
[0048] The pen refill 180 passes through the first opening 101 through the cylindrical pressing member 140 and is inserted into the cylindrical body 120. The pen refill 180 and the cylindrical pressing member 140 are detachably connected. The cylindrical pressing member 140 and the pen refill 180 slide together relative to the cylindrical body 120, so that the pen refill 180 is in an extended state and / or a retracted state.
[0049] The reset member 160 is connected to the pen refill 180 and the cylindrical body 120 respectively, and the reset member 160 causes the cylindrical pressing member 140 and the pen refill 180 to have an upward tendency relative to the cylindrical body 120.
[0050] When using this press-to-retract pen 100, once the pen refill 180 is used up, simply separate the detachable pen refill 180 from the cylindrical pressing member 140 and install the new pen refill 180 together with the cylindrical pressing member 140 to complete the replacement of the pen refill 180.
[0051] Compared with traditional press-to-retractable pens, the press-to-retractable pen 100 of this invention can replace the pen refill 180 without disassembling the outer shell after it is used up, making it more convenient to use.
[0052] Preferably, in conjunction with the accompanying drawings, in this embodiment, the cylindrical pressing member 140 is provided with a first locking block 142 on its side, and the cylindrical body 120 is provided with a first through hole 122 on its side wall. When the pen refill 180 is in the extended state, the first locking block 142 engages with the side wall of the first through hole 122.
[0053] At this time, when the pen refill 180 is in the extended state, the first locking block 142 engages with the side wall of the first through hole 122. Any object (e.g., a fingernail, needle, etc.) needs to be placed against the first locking block 142 within the first through hole 122 to move the first locking block 142 inwards, thus releasing the engagement between the first locking block 142 and the first through hole 122. At this time, the reset member 160 drives the cylindrical pressing member 140 and the pen refill 180 to move upwards relative to the cylindrical body 120. Pressing the cylindrical pressing member 140 and the pen refill 180 causes them to move downwards relative to the cylindrical body 120, thereby engaging the first locking block 142 with the first through hole 122, thus realizing the press-to-extend function of the retractable pen 100.
[0054] In other embodiments, the cylindrical pressing member 140 and the cylindrical body 120 may also be connected by snap-fit or other forms of detachable connection through other structures.
[0055] Referring to the accompanying drawings, in this embodiment, the 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 reset member 160 is elastically compressed, thereby causing the cylindrical pressing member 140 and the pen refill 180 to tend to move away from the outer casing 120.
[0056] In other embodiments, the reset member 160 may also be other elastic structures or two mutually repulsive magnets.
[0057] Preferably, in this embodiment, the downward-facing side of the first card block 142 is a curved surface or an arc surface.
[0058] The downward-facing side of the first locking block 142 is curved or arc-shaped, which makes it easier for the first locking block 142 to slide into the first through hole 122.
[0059] Preferably, in this embodiment, the side wall of the cylindrical body 120 is further provided with a second hole 124, which is located above the first through hole 122.
[0060] When the pen refill 180 is in the retracted state, the first locking block 142 engages with the side wall of the second hole 124.
[0061] More preferably, in this embodiment, the line connecting the first through hole 122 and the second hole 124 is parallel to the axial direction of the cylindrical body 120.
[0062] Specifically, referring to the accompanying drawings, in this embodiment, the second hole 124 is a through hole. In other embodiments, the second hole 124 may also be a blind hole located inside the cylindrical pressing member 140.
[0063] Preferably, in conjunction with the accompanying drawings, in this embodiment, the cylindrical pressing member 140 is provided with a first spring piece 144 on its side, and the first locking block 142 is provided on the side of the first spring piece 144 facing outward.
[0064] Specifically, combined Figure 3 In this embodiment, the side wall of the cylindrical pressing member 140 is provided with a first notch 146, and the first spring piece 144 is disposed at the first notch 146. One end of the first spring piece 144 is connected to the cylindrical pressing member 140, and the other end of the first spring piece 144 and both sides of the first spring piece 144 are separated from the cylindrical pressing member 140.
[0065] Preferably, in conjunction with the accompanying drawings, in this embodiment, the side wall of the cylindrical body 120 is further provided with an unlocking part 126, the unlocking part 126 is disposed at the first through hole 122, and the unlocking part 126 is used to abut against the first locking block 142 located in the first through hole 122.
[0066] More preferably, in conjunction with the accompanying drawings, the side wall of the cylindrical body 120 is also provided with a pen clip 128, and the unlocking part 126 is provided on the inside of the pen clip 128.
[0067] Preferably, in this embodiment, the pen refill 180 is connected to the cylindrical pressing member 140 by snap-fit, threaded connection, interference fit, or magnetic attraction.
[0068] More preferably, in conjunction with the accompanying drawings, the side wall of the pen refill 180 is provided with a second locking block 184, and the side wall of the exposed portion of the cylindrical pressing member 140 is provided with a third through hole 148.
[0069] When the pen refill 180 is inserted into the receiving cavity, the second locking block 184 engages with the side wall of the third through hole 148, thereby achieving locking.
[0070] Simply place any object (e.g., fingernail, needle, etc.) against the second locking block 184 inside the third through hole 148 to move the second locking block 184 inward, thereby disengaging the second locking block 184 from the third through hole 148. At this time, the cylindrical pressing member 140 and the cylindrical body 120 are connected together, and the resetting member 160 drives the pen refill 180 to move upward relative to the cylindrical pressing member 140 and the cylindrical body 120.
[0071] Specifically, referring to the attached diagram, the side wall of the pen refill 180 is provided with a second notch 186, a second spring piece 188 is provided at the second notch 186, and a second locking block 184 is provided on the side of the second spring piece 188 facing outward.
[0072] One end of the second spring 188 is connected to the pen refill 180, while the other end of the second spring 188 and both sides of the second spring 188 are separated from the pen refill 180.
[0073] like Figure 4 and Figure 5 The second embodiment of the press-to-retract pen 200 shown includes a cylindrical body 220, a cylindrical pressing member 240, a resetting member 260, and a pen core 280 with a pen tip 282.
[0074] The cylindrical pressing member 240 is slidably sleeved inside the upper end of the cylindrical body 220, and part of the cylindrical pressing member 240 is exposed.
[0075] The cylindrical pressing member 240 and the cylindrical body 220 together form a receiving cavity that matches the pen tip 280. The upper end of the cylindrical pressing member 240 is provided with a first opening 201, and the lower end of the cylindrical body 220 is provided with a second opening 202 that matches the pen tip 282 (the icon is wrong). Both the first opening 201 and the second opening 202 are connected to the receiving cavity.
[0076] The pen refill 280 passes through the first opening 201 through the cylindrical pressing member 240 and is inserted into the cylindrical body 220. The pen refill 280 and the cylindrical pressing member 240 are detachably connected. The cylindrical pressing member 240 and the pen refill 280 slide together relative to the cylindrical body 220, so that the pen refill 280 is in an extended state and / or a retracted state.
[0077] The reset member 260 is connected to the pen refill 280 and the cylindrical body 220 respectively, and the reset member 260 causes the cylindrical pressing member 240 and the pen refill 280 to have an upward tendency relative to the cylindrical body 220.
[0078] When using this press-to-retract pen 200, once the pen refill 280 is used up, simply separate the detachable pen refill 280 from the cylindrical pressing component 240 and install the new pen refill 280 with the cylindrical pressing component 240 to complete the replacement of the pen refill 280.
[0079] Compared with traditional press-to-retractable pens, the press-to-retractable pen 200 of this invention can replace the pen refill 280 without disassembling the outer casing after it is used up, making it more convenient to use.
[0080] Preferably, in conjunction with the accompanying drawings, in this embodiment, the cylindrical pressing member 240 is provided with a first locking block 242 on its side, and the cylindrical body 220 is provided with a first through hole 222 on its side wall. When the pen refill 280 is in the extended state, the first locking block 242 engages with the side wall of the first through hole 222.
[0081] At this time, when the pen refill 280 is in the extended state, the first locking block 242 engages with the side wall of the first through hole 222. Any object (e.g., a fingernail, needle, etc.) needs to be placed against the first locking block 242 within the first through hole 222 to move the first locking block 242 inwards, thus releasing the engagement between the first locking block 242 and the first through hole 222. At this time, the reset member 260 drives the cylindrical pressing member 240 and the pen refill 280 to move upwards relative to the cylindrical body 220. Pressing the cylindrical pressing member 240 and the pen refill 280 causes them to move downwards relative to the cylindrical body 220, thereby engaging the first locking block 242 with the first through hole 222, thus realizing the press-to-extend function of the retractable pen 200.
[0082] In other embodiments, the cylindrical pressing member 240 and the cylindrical body 220 may also be connected by snap-fit or other forms of detachable connection through other structures.
[0083] Referring to the accompanying drawings, in this embodiment, the 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 reset member 260 is elastically compressed, thereby causing the cylindrical pressing member 240 and the pen refill 280 to tend to move away from the outer casing 220.
[0084] In other embodiments, the reset member 260 may also be other elastic structures or two mutually repulsive magnets.
[0085] Preferably, in this embodiment, the downward-facing side of the first card block 242 is a curved surface or an arc surface.
[0086] The downward-facing side of the first locking block 242 is curved or arc-shaped, which makes it easier for the first locking block 242 to slide into the first through hole 222.
[0087] Preferably, in this embodiment, the side wall of the cylindrical body 220 is further provided with a second hole 224, which is located above the first through hole 222.
[0088] When the pen refill 280 is in the retracted state, the first locking block 242 engages with the side wall of the second hole 224.
[0089] More preferably, in this embodiment, the line connecting the first through hole 222 and the second hole 224 is parallel to the axial direction of the cylindrical body 220.
[0090] Specifically, referring to the accompanying drawings, in this embodiment, the second hole 224 is a through hole. In other embodiments, the second hole 224 may also be a blind hole located inside the cylindrical pressing member 240.
[0091] Preferably, in conjunction with the accompanying drawings, in this embodiment, the cylindrical pressing member 240 is provided with a first spring piece 244 on its side, and the first locking block 242 is provided on the side of the first spring piece 244 facing outward.
[0092] Specifically, combined Figure 6 In this embodiment, the side wall of the cylindrical pressing member 240 is provided with a first notch 246, and the first spring piece 244 is disposed at the first notch 246. One end of the first spring piece 244 is connected to the cylindrical pressing member 240, and the other end of the first spring piece 244 and both sides of the first spring piece 244 are separated from the cylindrical pressing member 240.
[0093] Preferably, in conjunction with the accompanying drawings, in this embodiment, the side wall of the cylindrical body 220 is further provided with an unlocking part 226, the unlocking part 226 is disposed at the first through hole 222, and the unlocking part 226 is used to abut against the first locking block 242 located in the first through hole 222.
[0094] More preferably, in conjunction with the accompanying drawings, the side wall of the cylindrical body 220 is also provided with a pen clip 228, and the unlocking part 226 is provided on the inside of the pen clip 228.
[0095] Preferably, referring to the accompanying drawings, the pressable telescopic pen 200 also includes an unlocking member 290. The side wall of the exposed portion of the cylindrical pressing member 240 is provided with a fourth through hole 248, and the unlocking member 290 is movably disposed in the fourth through hole 248.
[0096] The outer wall of the pen refill 280 is provided with a locking part 284 that matches the unlocking member 290. The unlocking member 290 moves relative to the cylindrical pressing member 240, thereby locking or unlocking the unlocking member 290 and the locking part 284. When the unlocking member 290 and the locking part 284 are locked, the cylindrical pressing member 240, the unlocking member 290 and the locking part 284 are locked together. When the unlocking member 290 and the locking part 284 are unlocked, the reset member 260 drives the pen refill 280 to move in a direction away from the cylindrical pressing member 240.
[0097] Preferred, combined Figure 7 The unlocking member 290 is slidably disposed in the fourth through hole 248. The unlocking member 290 includes a locking engagement part 292 located in the receiving cavity and matching the locking part 284, and an operating part 294 exposed outside the cylindrical pressing member 240.
[0098] The operating part 294 is used to drive the unlocking member 290 to slide relative to the cylindrical pressing member 240 after being operated, thereby locking or unlocking the unlocking member 290 with the locking part 284.
[0099] Preferably, in this embodiment, the locking part 284 is a slot and the locking engagement part 292 is a block. In other embodiments, the locking part 284 may be a slot and the locking engagement part 292 may be a block.
[0100] More preferably, in this embodiment, the locking part 292 is annular and is sleeved on the outside of the pen refill 280.
[0101] Preferably, in conjunction with the accompanying drawings, in this embodiment, the pressable telescopic pen 200 further includes an auxiliary reset member 296, which is connected to the cylindrical pressing member 240 and the unlocking member 290 respectively, and the auxiliary reset member 296 makes the unlocking member 290 tend to lock with the locking part 284.
[0102] More preferably, in this embodiment, the auxiliary reset member 296 is a spring, and after being compressed, the auxiliary reset member 296 is connected to the end of the locking engagement part 292 away from the operation part 294 and the inner side of the cylindrical pressing member 240.
[0103] The area on the inner side of the locking engagement part 292 that is away from the operating part 294 is used for snap-fit connection with the locking part 284, and the auxiliary reset member 296 makes the area on the inner side of the locking engagement part 292 that is away from the operating part 294 tend to move closer to the locking part 284.
[0104] In other embodiments, the auxiliary reset member 296 may also be other elastic structures or two mutually repulsive magnets.
[0105] Preferably, in this embodiment, the locking part 284 is ring-shaped.
[0106] 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 with the unlocking part 290.
[0107] Specifically, referring to the accompanying drawings, in this embodiment, the locking part 284 is an annular groove.
[0108] Preferably, in this embodiment, the inner upward-facing side of the locking part 292 and / or the downward-facing side of the locking part 284 are curved or arc-shaped surfaces.
[0109] The inner upward side of the locking engagement part 292 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 part 290 and the locking part 284.
[0110] 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.
[0111] 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.
[0112] 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.
[0113] 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.
[0114] 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 push retractable pen characterized by, The pen comprises a cylindrical main body, a cylindrical pressing member, a reset member and a refill with a pen tip; The cylindrical pressing member is slidably sleeved in the upper end of the cylindrical main body and partially exposed outside; The cylindrical pressing member and the cylindrical main body jointly form a containing cavity matched with the refill, the upper end of the cylindrical pressing member is provided with a first opening, the lower end of the cylindrical main body is provided with a second opening matched with the pen tip, and the first opening and the second opening are both communicated with the containing cavity; The refill is inserted into the cylindrical main body through the first opening and the cylindrical pressing member, and the refill is detachably connected with the cylindrical pressing member, the cylindrical pressing member and the refill jointly slide relative to the cylindrical main body, so that the refill is in an extended state and / or a retracted state; The reset member is connected with the refill and the cylindrical main body respectively, and the reset member makes the cylindrical pressing member and the refill have a tendency to move upward relative to the cylindrical main body.
2. The push retraction pen of claim 1, wherein, The side surface of the cylindrical pressing member is provided with a first clamping block, the side wall of the cylindrical main body is provided with a first through hole, and when the refill is in the extended state, the first clamping block is clamped with the side wall of the first through hole.
3. The push retraction pen of claim 2, wherein, The side wall of the cylindrical main body is further provided with a second hole, and the second hole is located above the first through hole; When the refill is in the retracted state, the first clamping block is clamped with the side wall of the second hole.
4. The push retraction pen of claim 3, wherein, The connecting line of the first through hole and the second hole is parallel to the axial direction of the cylindrical main body.
5. The push retraction pen of claim 3, wherein, The side surface of the cylindrical pressing member is provided with a first elastic sheet, and the first clamping block is arranged on the side of the first elastic sheet facing outward.
6. The push retraction pen of claim 5, wherein, The side wall of the cylindrical pressing member is provided with a first notch, the first elastic sheet is arranged at the first notch, one end of the first elastic sheet is connected with the cylindrical pressing member, and the other end of the first elastic sheet and both side ends of the first elastic sheet are separated from the cylindrical pressing member.
7. The push retractor pen according to any one of claims 1 to 6, wherein The side wall of the cylindrical main body is further provided with an unlocking portion, the unlocking portion is arranged at the first through hole, and the unlocking portion is used to abut against the first clamping block located in the first through hole.
8. The push retraction pen of claim 7, wherein, The side wall of the cylindrical main body is further provided with a pen clamp, and the unlocking portion is arranged on the inner side of the pen clamp.
9. The push retraction pen of claim 7, wherein, The refill is detachably connected with the cylindrical pressing member through buckling connection, threaded connection, interference fit or magnetic attraction.
10. The push retraction pen of claim 9, wherein, The side wall of the refill is provided with a second clamping block, and the side wall of the part of the cylindrical pressing member exposed outside is provided with a third through hole; When the refill is loaded into the containing cavity, the second clamping block is clamped with the side wall of the third through hole, so as to be locked.
11. The push retraction pen of claim 10, wherein, The side wall of the refill is provided with a second notch, a second elastic sheet is arranged at the second notch, and the second clamping block is arranged on the side of the second elastic sheet facing outward; One end of the second elastic sheet is connected with the refill, and the other end of the second elastic sheet and both side ends of the second elastic sheet are separated from the refill.
12. The push retraction pen of claim 7, wherein, The pressing and retracting pen further comprises an unlocking member, the side wall of the part of the cylindrical pressing member exposed outside is provided with a fourth through hole, and the unlocking member is movably arranged in the fourth through hole. The outer side wall of the refill is provided with a locking portion matched with the unlocking member, the unlocking member moves relative to the cylindrical pressing member, so that the unlocking member is locked or unlocked with the locking portion, when the unlocking member is locked with the locking portion, the cylindrical pressing member, the unlocking member and the locking portion are locked together, when the unlocking member is unlocked with the locking portion, the reset member drives the refill to move away from the cylindrical pressing member.
13. The push retraction pen of claim 12, wherein, The unlocking member is slidably arranged in the fourth through hole, the unlocking member includes a locking matching portion located in the accommodating cavity and matched with the locking portion and an operating portion exposed outside the cylindrical pressing member; The operating portion is used to be operated to drive the unlocking member to slide relative to the cylindrical pressing member, so that the unlocking member is locked or unlocked with the locking portion.
14. The push retraction pen of claim 13, wherein, The locking portion and the locking matching portion are one of a clamping block and a clamping groove.
15. The push retraction pen of claim 14, wherein, The locking matching portion is annular, and the locking matching portion is sleeved outside the refill.
16. The push retraction pen of claim 15, wherein, The pressing telescopic pen further includes an auxiliary reset member, the auxiliary reset member is connected with the cylindrical pressing member and the unlocking member respectively, and the auxiliary reset member makes the unlocking member have a tendency to be locked with the locking portion.
17. The push retraction pen of claim 16, wherein, The auxiliary reset member is a spring, and the auxiliary reset member is connected with one end of the locking matching portion away from the operating portion and the inner side of the cylindrical pressing member after being compressed; The inner side of the locking matching portion away from the operating portion is used to be buckled with the locking portion, and the auxiliary reset member makes the inner side of the locking matching portion away from the operating portion have a tendency to be close to the locking portion.
18. The retracting pen of claim 14, wherein, The locking portion is annular.