Lifting pen

Abstract

The utility model relates to a pen and belongs to the field of pens. A lifting pen comprises a telescopic writing loop bar and a writing tool body. The writing loop bar comprises a lower loop bar and an upper loop bar which are connected in a sleeved mode. And the writing tool main body is positioned in the writing loop bar. And through stretching and retracting of the writing loop bar, the writing tool main body has two position changes of core pressing collection and core pulling out in the writing loop bar. The writing loop bar is provided with a matching end and a limiting end. And the matching end and the limiting end are respectively arranged on the lower sleeve rod or the upper sleeve rod. When the core is discharged, the matching end is limited by the limiting end, so that the writing end of the writing tool main body is continuously kept in a state of being exposed out of the writing loop bar, and when the core is collected, the matching end is separated from the limiting end, and the writing end of the writing tool main body is completely collected into the writing loop bar.

Description

Technical Field

[0001] The utility model relates to a pen, in particular to a pull-up pen. Background Art

[0002] As times change and developments progress, the pull-up method is gradually replacing the press-down method. While the convenience of the pull-up method is undoubtedly superior to the press-down method, the emergence of new operating concepts often requires constant evolution. While continuously optimizing and improving traditional pull-up structures, it is also crucial to enrich the possibilities of pull-up design. Only in this way can a better and more robust pull-up market be formed. Summary of the Invention

[0003] The purpose of the present utility model is to solve the problem of the single pulling method and high cost of the existing pulling method, and to provide a pulling pen with low cost and which can press the core to be collected by side and / or rotate the core to be collected and / or push the ring to be collected and / or rotate to self-lock and / or pull out the core to be collected.

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

[0005] A pull-up pen comprises a retractable writing rod, a pen core and a core-retracting spring.

[0006] The writing sleeve rod comprises a lower sleeve rod and an upper sleeve rod which are sleeved together;

[0007] The pen core is located in the writing sleeve rod; the core-collecting spring is located between the pen core and the writing sleeve rod;

[0008] By extending and retracting the writing sleeve, the pen core can be moved into and out of the writing sleeve.

[0009] The writing sleeve rod is provided with a positioning assembly, which includes an execution part and a limiting part. When the execution part is provided on the upper sleeve rod, the limiting part is provided on the lower sleeve rod, and vice versa.

[0010] When the refill is ejected, the actuator moves to the limiting portion and is restrained by the limiting portion so that the writing end of the refill remains exposed from the writing sleeve.

[0011] When the refill is retracted, the execution part and the limiting part are separated, and the writing end of the refill is completely retracted into the writing sleeve rod.

[0012] As a preferred embodiment of the present invention: the writing sleeve rod is further provided with one or more releasing members, and the releasing members are used to indirectly or directly cause the execution part and the limiting part to separate; when multiple releasing members are provided at the same time, the releasing members will adopt different forms, so that multiple different core-releasing effects can be achieved at the same time.

[0013] As a preferred embodiment of the present invention: the executing portion and / or the limiting portion has a certain deformation capability, and the executing portion is further provided with a matching boss, and the matching boss directly contacts with the limiting portion to achieve core-out limiting.

[0014] As a preferred embodiment of the present invention: an anti-slip assembly is provided on the writing sleeve rod, and the anti-slip assembly includes an anti-slip portion and a stop portion. When the anti-slip portion is provided on the upper sleeve rod, the stop portion is provided on the lower sleeve rod, and vice versa; there are many forms of expression of the anti-slip assembly, and the main purpose is to ensure that the lower sleeve rod and the upper sleeve rod can be axially extended and retracted while preventing the lower sleeve rod and the upper sleeve rod from being completely separated, so as to continuously maintain the stability of the core-collecting state; based on this situation, the anti-slip assembly can be designed to be detachable and non-detachable according to different situations.

[0015] As a preferred embodiment of the present invention, the release member can be in at least the following forms:

[0016] 1. The slip ring set is single ring or double ring; if it is single ring, it is the actuator ring; if it is double ring, it is the actuator ring and the self-locking ring;

[0017] 2. Rotating fittings;

[0018] 3. Extended pressing piece;

[0019] 4. Execution pressing boss. The execution pressing boss is located on the execution part. When there is no other limiting structure between the upper sleeve rod and the lower sleeve rod, the execution pressing boss can form a limiting function with the limiting part to prevent the upper sleeve rod and the lower sleeve rod from detaching when the core is retracted.

[0020] As a preferred embodiment of the present invention: the slip ring set 3 is a double ring, the executive ring and the self-locking ring are connected by a threaded connection, the slip ring set 3 is sleeved on the writing sleeve rod, the executive ring moves axially relative to the upper sleeve rod 2 and cannot rotate, the self-locking ring can rotate relative to the upper sleeve rod 2, and can also move axially or cannot move axially; the double rings can realize the pushing and pulling of the core while increasing the self-locking function, and if the self-locking ring can move axially relative to the writing sleeve rod, it can realize the pushing down of the slip ring set to collect the core or the pulling up of the core without self-locking.

[0021] As a preference of the present invention: under normal circumstances, the slip ring assembly can directly cooperate with the actuator or the matching boss, and when the actuator does not cooperate with the slip ring assembly, the actuator is further provided with a slip ring pusher that cooperates with the slip ring assembly.

[0022] As a preferred embodiment of the present invention, in order to ensure the best effect of the slip ring set and that the function is not affected by gravity, a return spring is further provided between the slip ring set and the writing sleeve rod.

[0023] As a preferred embodiment of the present invention, a rotation control unit (61) is further provided on the execution unit (11).

[0024] As a preferred embodiment of the present invention: in order to better realize the function of rotating core collection, the rotating mating part is provided with one or more rotating adjustment parts that match the rotating control part. When the rotating mating ring set rotates, the rotating adjustment part and the rotating control part will cause the execution part to be displaced. When multiple rotating adjustment parts are provided at the same time, the rotation can be free, and no matter which direction it is rotated to, there is a rotating adjustment part that can cooperate with the rotating control part.

[0025] As a preferred embodiment of the present invention: in order to better realize the function of pressing and collecting the core and enhance the actual experience of pressing and collecting the core, the extended pressing piece is specifically provided on the lower sleeve rod, the slip ring assembly, the rotating fitting or the upper sleeve rod.

[0026] As a preferred embodiment of the present invention: in order to better design the overall usage structure according to appearance requirements and meet the needs of different consumer groups, the execution part is further provided with a pressing transmission part that cooperates with the extended pressing piece.

[0027] As the preferred embodiment of the present invention: in order to avoid the position of the hand's tiger's mouth clamping when pulling out the core, and to avoid the problem of being unable to normally pull out the core after accidentally touching the extension pressing piece, the extension pressing piece or the execution pressing boss is set at a distance from the core

[0028] 3-35mm or 45-180MM at the writing end.

[0029] As a preferred embodiment of the present invention, the execution part and the limiting part cooperate with each other to limit when needed and shorten the length of the writing sleeve rod through a detachable limiting structure. When not needed, the limiting part is released and the length of the writing sleeve rod is restored.

[0030] As a preferred embodiment of the present invention: the core is pulled out by pulling the core out, the distance between the lower end of the directly contactable part of the upper sleeve rod and the writing end of the pen core is 3-80mm, and the lower sleeve rod part can be directly contacted, through the directly contactable parts of the lower sleeve rod and the upper sleeve rod, one end is clamped at the base of one hand, and the fingers move the other end, so that the upper sleeve rod and the lower sleeve rod are telescoped and approached, so that the execution part moves up to the limit part.

[0031] As a preferred embodiment of the present invention, a core-changing component can be detached from the upper sleeve rod or the lower sleeve rod.

[0032] As a preferred embodiment of the present invention: the limiting part is also provided with a core receiving groove, and usually, the core receiving groove is located on the upper side or the lower side of the limiting part; when the core is received, the executing part is in the core receiving groove; when a core receiving groove and a core outlet guide slope are provided, the core receiving groove can be expanded, and the area with the core outlet guide slope above is the core outlet area X, and the area without the core outlet guide slope above forms a self-locking area Z, so that the executing part can enter the self-locking area Z by rotation, thereby realizing self-locking.

[0033] As a preferred embodiment of the present invention: the executing portion and / or the limiting portion has a certain deformation capability, the executing portion is further provided with a matching groove, and the limiting portion is further provided with a limiting boss.

[0034] As a preferred embodiment of the present invention: the upper sleeve rod and / or the lower sleeve rod is further provided with a core-outlet guide slope. When the core is retracted, when the mating boss is located in the gap between the upper sleeve rod and the lower sleeve rod, and the core-outlet guide slope is not provided on the execution part, the width of the core-outlet guide slope is limited so that the upper side or the lower side of the core-outlet guide slope forms a core-outlet area X, and the areas on both sides or one side of the core-outlet guide slope are self-locking areas Z, so that the mating boss enters the self-locking area Z by rotation, thereby achieving self-locking.

[0035] As a preferred embodiment of the present invention: the tail of the upper sleeve rod is provided with a core-collecting self-locking part, and when the tail of the upper sleeve rod is provided with a core-changing part, the core-collecting self-locking part is provided on the core-changing part; the matching distance between the core-collecting self-locking part and the upper sleeve rod or the core-changing part is changed by rotation or pulling, so that the internal space of the writing sleeve rod becomes longer and shorter, and when the core-collecting self-locking part causes the internal space of the writing sleeve rod to become shorter, the core can be collected normally through the positioning component at this time, and when the core-collecting self-locking part causes the internal space of the writing sleeve rod to become longer, the core cannot be discharged normally, and it is in a self-locking state at this time. This method achieves self-locking by changing the length of the internal space of the writing sleeve rod.

[0036] As a further preference of the present invention: an anti-slip assembly is provided on the writing sleeve rod, and the anti-slip assembly includes an anti-slip portion and a stopping portion. When the anti-slip portion is provided on the upper sleeve rod, the stopping portion is provided on the lower sleeve rod, and vice versa; the anti-slip assembly can be expressed in many forms, and its main purpose is to ensure that the lower sleeve rod and the upper sleeve rod can be axially extended and retracted while preventing the lower sleeve rod and the upper sleeve rod from being completely separated, so as to continuously maintain the stability of the core-collecting state; based on this situation, the anti-slip assembly can be designed to be detachable and non-detachable according to different situations; in the case of no self-locking function, the anti-slip assembly can also limit the rotation of the upper sleeve rod relative to the lower sleeve rod through the structure, so that the two can only move axially; and when a self-locking function is provided that requires the upper sleeve rod and the lower sleeve rod to rotate, the upper sleeve rod and the lower sleeve rod can not only move axially, but also rotate slightly to meet the rotation requirements of the self-locking function.

[0037] When the tail end of the pen core is against the upper sleeve rod, the upper sleeve rod also includes the pen holding area. When writing, the writing force acts on the upper sleeve rod, and the cooperation limiting force between the execution part and the limiting part only needs to be slightly greater than the elastic force of the core-retracting spring. At this time, the core can be retracted by pulling the upper sleeve rod and the lower sleeve rod respectively with both hands.

[0038] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0039] 1. The operation methods are diverse and novel, including various operation methods that can be accepted by most groups, with more choices, such as pressing the core, rotating the core, pushing the core down, pulling the core back, and rotating the core automatically and pushing it down to lock it.

[0040] 2. Simplified structure and reduced costs: While taking into account various operating modes, the structure is simplified, the number of parts is reduced through structural design, and costs are reduced.

[0041] 3. It is conducive to production and assembly, improves production output, and reduces assembly labor requirements. The actual production and assembly of the product are fully considered during the structural design. Most parts can be assembled by assembly line machinery, reducing labor requirements.

[0042] 4. The actual operation experience is excellent. The core is easily pulled out by pulling it out, while it also provides a convenient and different core collection experience.

[0043] 5. The overall space utilization rate is extremely high, and the space occupied by the pen core accounts for a very high proportion, so the overall length is greatly shortened, which is very conducive to portability. It solves the problem of pocket pens on the market. Under the adjustment of the same length, it takes into account both portable operation and the capacity of the pen core, achieving the greatest degree of both.

[0044] 6. In response to the demand for portability, through the adjustment of logic and details, without adding additional structure, it is beneficial to the original structure, thereby adding a self-locking function, greatly improving the practicality of portability and reducing the actual production cost, while ensuring the original appearance design. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 This is an exploded view of Example 1 of the present utility model.

[0046] Figure 2 This is a front view and a left sectional view of a core of Example 1 of the present invention.

[0047] Figure 3 This is the main view and left sectional view of the core receiving device of Example 1 of the present invention.

[0048] Figure 4 This is a partially enlarged view of Example 1 of the present utility model.

[0049] Figure 5 This is an exploded view of Example 2 of the present utility model.

[0050] Figure 6 This is a front view and a left sectional view of a core of Example 2 of the present invention.

[0051] Figure 7 It is a rear view and a left sectional view of the core-collecting embodiment 2 of the present invention.

[0052] Figure 8 This is a front view and a left sectional view of a core of Example 3 of the present invention.

[0053] Figure 9 It is a rear view and a left sectional view of the core-collecting embodiment 3 of the present invention.

[0054] Figure 10 This is the main view and left sectional view of the core of embodiment 4 of the utility model

[0055] Figure 11 It is a rear view and a left sectional view of the core-collecting embodiment 4 of the present invention.

[0056] Figure 12 This is a front view and a left sectional view of a core of Example 5 of the present invention.

[0057] Figure 13 It is a rear view and a left sectional view of the core-collecting embodiment 5 of the present invention.

[0058] Figure 14 This is a front view and a left sectional view of a core of Example 6 of the present invention.

[0059] Figure 15 It is a rear view and a left sectional view of the core-collecting embodiment 6 of the present invention.

[0060] Figure 16 This is an enlarged view of the rotating matching ring set of the present invention.

[0061] Figure 17 This is a front view and a left sectional view of a core of Example 7 of the present invention.

[0062] Figure 18 It is a rear view and a left sectional view of the core-collecting embodiment 7 of the present invention.

[0063] Figure 19 This is an enlarged view of the upper sleeve rod of Example 7 of the present utility model.

[0064] Figure 20 This is a front view and a left sectional view of the core of Example 8 of the present utility model.

[0065] Figure 21It is the rear view and left sectional view of the core-collecting embodiment 8 of the present invention.

[0066] Figure 22 This is a front view and a left sectional view of a core of Example 9 of the present invention.

[0067] Figure 23 It is a rear view and a left sectional view of the core-collecting embodiment 9 of the present invention.

[0068] Figure 24 This is a front view and a left sectional view of a core of Example 10 of the present invention.

[0069] Figure 25 It is a rear view and a left sectional view of the core-collecting embodiment 10 of the present invention.

[0070] Figure 26 This is an enlarged view of the upper sleeve rod of Example 10 of the present utility model.

[0071] Figure 27 It is the main view and left sectional view of the core output of embodiment 11 of the present invention.

[0072] Figure 28 It is a rear view and a left sectional view of the core collection of embodiment 11 of the present invention.

[0073] Figure 29 This is a local enlarged view of location I of Example 11 of the present invention.

[0074] Reference numerals:

[0075] 1. Lower sleeve. 11. Mating end. 111. Mating boss. 112. Press drive. 113. Mating groove. 12. Anti-slip feature. 2. Upper sleeve. 21. Limiting end. 211. Core collection groove. 212. Core guide ramp. 22. Anti-slip feature. 3. Slip ring assembly. 31. Slip ring pusher. 32. Self-locking ring. 33. Actuator ring. 4. Core collection spring. 5. Pencil core. 6. Rotating mating ring assembly. 61. Rotating control end. 62. Rotating adjustment end. DETAILED DESCRIPTION

[0076] The present invention will be further described below in conjunction with the accompanying drawings. Example 1

[0077] like Figures 1 to 4 The pull-up pen shown in the figure comprises a retractable writing sleeve, a pen core 5 and a core-retracting spring 4.

[0078] The writing sleeve rod comprises a lower sleeve rod 1 and an upper sleeve rod 2 which are sleeved together;

[0079] The refill 5 is located inside the writing sleeve; the refill spring 4 is located between the refill 5 and the writing sleeve;

[0080] By extending and retracting the writing sleeve, the pen core 5 can be positioned in the writing sleeve, either inward or outward.

[0081] The writing sleeve rod is provided with a positioning assembly, which includes an execution part 11 and a limiting part 21; the execution part 11 is provided on the lower sleeve rod 1, and the limiting part 21 is provided on the upper sleeve rod 2;

[0082] When the refill is ejected, the execution portion 11 moves upward to the limiting portion 21 and is restricted by the limiting portion 21 so that the writing end of the refill 5 remains exposed from the writing sleeve.

[0083] When the refill is retracted, the execution portion 11 and the limiting portion 21 are separated, and the writing end of the refill 5 is completely retracted into the writing sleeve.

[0084] The execution part 11 has a certain deformation capability and is further provided with a matching boss 111 .

[0085] In order to facilitate the use of pressing and collecting the core, the upper sleeve rod 2 is further provided with a release member, that is, an extension pressing member A. When the extension pressing member A is pressed down, it will transmit to the actuator 11, affecting the downward displacement of the actuator 11.

[0086] The writing sleeve rod is in a reset telescopic state, and the upper sleeve rod 2 and the lower sleeve rod 1 are transmitted through the pen core 5. The core retracting spring 4 is arranged between the core outlet of the writing sleeve rod and the writing end of the pen core 5.

[0087] In order to facilitate the replacement of the refill, the execution part 11 and the limiting part 21 are provided with a detachable limiting structure. When needed, the limiting structure is coordinated to shorten the length of the writing sleeve rod. When not needed, the limiting structure is released to restore the length of the writing sleeve rod.

[0088] In order to control the maximum extension and retraction distance of the writing sleeve rod, the writing sleeve rod is provided with a stopper 12 and a matching slot. The stopper 12 is provided on the lower sleeve rod 1; the matching slot is provided on the upper sleeve rod 2. The movable distance of the stopper 12 in the matching slot is the maximum distance that the upper sleeve rod 2 and the lower sleeve rod 1 can extend and retract with each other.

[0089] In order to facilitate installation, the mating slot is one-way through, so that the anti-slip portion 12 can move more easily in the mating slot. The mating slot is provided with an anti-slip portion 22, which limits the moving distance of the anti-slip portion 12 in the mating slot and the anti-slip portion 12 is not easy to fall out of the anti-slip portion 22.

[0090] The core is pulled out by pulling it out. When the upper sleeve rod 2 is kept stationary, the lower sleeve rod 1 is moved toward the upper sleeve rod 2 and the boss 111 is engaged with the limiting portion 21 .

[0091] When the tail end of the pen core is against the upper sleeve rod, the upper sleeve rod also includes the pen holding area. When writing, the writing force acts on the upper sleeve rod, and the matching limiting force between the execution part 11 and the limiting part 21 only needs to be slightly greater than the elastic force of the core-retracting spring. At this time, the core can be retracted by pulling the upper sleeve rod and the lower sleeve rod respectively with both hands. Example 2

[0092] like Figures 5 to 7 The pull-up pen shown in the figure comprises a retractable writing sleeve, a refill 5 and a refill spring 4.

[0093] The writing sleeve rod comprises a lower sleeve rod 1 and an upper sleeve rod 2 which are sleeved together;

[0094] The refill 5 is located inside the writing sleeve; the refill spring 4 is located between the refill 5 and the writing sleeve;

[0095] By extending and retracting the writing sleeve, the pen core 5 can be positioned in the writing sleeve, either in the reel-in position or in the reel-out position.

[0096] The writing sleeve rod is provided with a positioning assembly, which includes an execution part 11 and a limiting part 21; the execution part 11 is provided on the upper sleeve rod 1, and the limiting part 21 is provided on the lower sleeve rod 2;

[0097] When the refill is ejected, the execution portion 11 moves downward to the limiting portion 21 and is restricted by the limiting portion 21 so that the writing end of the refill 5 remains exposed from the writing sleeve.

[0098] When the refill is retracted, the execution portion 11 and the limiting portion 21 are separated, and the writing end of the refill 5 is completely retracted into the writing sleeve.

[0099] The writing sleeve rod is also provided with two release members, namely the slip ring set 3 and the extension pressing member A.

[0100] The writing sleeve rod is also provided with a slip ring set 3.

[0101] The lower sleeve rod 1 is further provided with a core-outlet guide slope 212 .

[0102] The slip ring set 3 is a double ring, specifically divided into an executive ring 33 and a self-locking ring 32. The executive ring 33 and the self-locking ring 32 are connected by a thread. The slip ring set 3 is sleeved on the writing sleeve rod. The executive ring 33 moves axially relative to the upper sleeve rod 2 and cannot rotate. The self-locking ring 32 can rotate relative to the upper sleeve rod 2 and can also move axially. The double rings can realize the push-pull core collection while adding a self-locking function.

[0103] The extended pressing member A is provided on the execution ring 33 , which not only adds the function of pressing and collecting the core, but also facilitates operation.

[0104] When the executing part 11 is not matched with the slip ring assembly 3 , the executing part 11 is further provided with a slip ring pushing part 31 matched with the slip ring assembly 3 .

[0105] A return spring B is further provided between the execution ring 33 and the writing sleeve rod.

[0106] The execution part 11 has a certain deformation capability and is further provided with a matching boss 111 .

[0107] The writing sleeve rod is in a reset telescopic state, and the upper sleeve rod 2 and the lower sleeve rod 1 are transmitted through the pen core 5. The core retracting spring 4 is arranged between the core outlet of the writing sleeve rod and the writing end of the pen core 5.

[0108] The execution part 11 and the limiting part 21 cooperate with each other to limit when needed and shorten the length of the writing sleeve rod through a detachable limiting structure. When not needed, the limiting part is released and the length of the writing sleeve rod is restored.

[0109] In order to control the maximum distance that the writing sleeve rod can be extended and retracted, the writing sleeve rod is provided with a stopper 12 and a matching slot. The stopper 12 is provided on the upper sleeve rod 2; the matching slot is provided on the lower sleeve rod 1. The movable distance of the stopper 12 in the matching slot is the maximum distance that the upper sleeve rod 2 and the lower sleeve rod 1 can extend and retract from each other.

[0110] In order to facilitate installation, the mating slot is one-way through, so that the anti-slip portion 12 can move more easily in the mating slot. The mating slot is provided with an anti-slip portion 22, which limits the moving distance of the anti-slip portion 12 in the mating slot and the anti-slip portion 12 is not easy to fall out of the anti-slip portion 22.

[0111] The core-out method is the same as that in Example 1, which is pulling out the core.

[0112] The core collection methods are: 1. Self-locking core collection, 2. Push-pull core collection, 3. Pull-up core collection, 4. Press-down core collection Example 3

[0113] like Figures 8 and 9 and Figure 16 The lifting pen shown in the figure is a pen that adds a new release member, namely a rotating fitting member 6, based on the embodiment 3;

[0114] The execution part 11 is further provided with a rotation control part 61. The writing sleeve rod is further provided with a rotation matching member 6 for controlling the execution part 11 through the rotation control part 61.

[0115] The rotating fitting member 6 includes one or more rotating adjustment parts 62 that match the rotating control part 61 . When the rotating fitting ring sleeve 6 rotates, the rotating adjustment part 62 and the rotating control part 61 cause the actuator 11 to be displaced.

[0116] The core collecting method is based on Example 3, with the addition of rotating core collecting! Example 4

[0117] like Figure 10 and Figure 11 The writing sleeve comprises a retractable writing sleeve, a refill 5 and a refill spring 4.

[0118] The writing sleeve rod comprises a lower sleeve rod 1 and an upper sleeve rod 2 which are sleeved together;

[0119] The refill 5 is located inside the writing sleeve; the refill spring 4 is located between the refill 5 and the writing sleeve;

[0120] By extending and retracting the writing sleeve, the pen core 5 can be positioned in the writing sleeve, either inward or outward.

[0121] The writing sleeve rod is provided with a positioning assembly, which includes an execution part 11 and a limiting part 21; the execution part 11 is provided on the upper sleeve rod 2, and the limiting part 21 is provided on the lower sleeve rod 1;

[0122] When the refill is ejected, the execution portion 11 moves downward to the limiting portion 21 and is restricted by the limiting portion 21 so that the writing end of the refill 5 remains exposed from the writing sleeve.

[0123] When the refill is retracted, the execution portion 11 and the limiting portion 21 are separated, and the writing end of the refill 5 is completely retracted into the writing sleeve.

[0124] The execution part 11 has a certain deformation capability and is further provided with a matching boss 111 .

[0125] The writing sleeve rod is in a reset telescopic state, and the upper sleeve rod 2 and the lower sleeve rod 1 are transmitted through the pen core 5. The core retracting spring 4 is arranged between the core outlet of the writing sleeve rod and the writing end of the pen core 5.

[0126] The lower sleeve rod 1 is further provided with a core-outlet guide slope 212 .

[0127] In order to facilitate the replacement of the refill, the execution part 11 and the limiting part 21 are provided with a detachable limiting structure. When needed, the limiting structure is coordinated to shorten the length of the writing sleeve rod. When not needed, the limiting structure is released to restore the length of the writing sleeve rod. Specifically,

[0128] In order to control the maximum distance that the writing sleeve rod can be extended and retracted, the writing sleeve rod is provided with a stopper 12 and a matching slot. The stopper 12 is provided on the upper sleeve rod 2; the matching slot is provided on the lower sleeve rod 1. The movable distance of the stopper 12 in the matching slot is the maximum distance that the upper sleeve rod 2 and the lower sleeve rod 1 can extend and retract from each other.

[0129] In order to facilitate installation, the mating slot is one-way through, so that the anti-slip portion 12 can move more easily in the mating slot. The mating slot is provided with an anti-slip portion 22, which limits the moving distance of the anti-slip portion 12 in the mating slot and the anti-slip portion 12 is not easy to fall out of the anti-slip portion 22.

[0130] The core is pulled out by pulling it out. When the upper sleeve rod 2 is kept stationary, the lower sleeve rod 1 is moved toward the upper sleeve rod 2 and the boss 111 is engaged with the limiting portion 21 .

[0131] A new release member, namely a rotating fitting member 6, is added to the writing sleeve rod;

[0132] The execution part 11 is further provided with a rotation control part 61. The writing sleeve rod is further provided with a rotation matching member 6 for controlling the execution part 11 through the rotation control part 61.

[0133] The rotating fitting member 6 includes one or more rotating adjustment parts 62 that match the rotating control part 61 . When the rotating fitting ring sleeve 6 rotates, the rotating adjustment part 62 and the rotating control part 61 cause the actuator 11 to be displaced.

[0134] The core collecting method is rotary core collecting. Example 5

[0135] like Figures 12 to 13 The pull-up pen shown in the figure comprises a retractable writing rod, a pen core 5 and a core-retracting spring 4.

[0136] The writing sleeve rod comprises a lower sleeve rod 1 and an upper sleeve rod 2 which are sleeved together;

[0137] The refill 5 is located inside the writing sleeve; the refill spring 4 is located between the refill 5 and the writing sleeve;

[0138] By extending and retracting the writing sleeve, the pen core 5 can be positioned in the writing sleeve, either inward or outward.

[0139] The writing sleeve rod is provided with a positioning assembly, which includes an execution part 11 and a limiting part 21; the execution part 11 is provided on the upper sleeve rod 1, and the limiting part 21 is provided on the lower sleeve rod 2;

[0140] When the refill is ejected, the execution portion 11 moves downward to the limiting portion 21 and is restricted by the limiting portion 21 so that the writing end of the refill 5 remains exposed from the writing sleeve.

[0141] When the refill is retracted, the execution portion 11 and the limiting portion 21 are separated, and the writing end of the refill 5 is completely retracted into the writing sleeve.

[0142] The writing sleeve rod is also provided with a slip ring set 3.

[0143] The slip ring assembly 3 is a single ring, specifically divided into an execution ring 33, which is sleeved on the writing sleeve rod. The execution ring 33 moves axially relative to the upper sleeve rod 2 and cannot rotate. In addition, an extended pressing piece A can be added to additionally increase the function of pressing and collecting the core.

[0144] When the executing part 11 is not matched with the slip ring assembly 3 , the executing part 11 is further provided with a slip ring pushing part 31 matched with the slip ring assembly 3 .

[0145] The execution part 11 has a certain deformation capability and is further provided with a matching boss 111 .

[0146] The lower sleeve rod 1 is further provided with a core-outlet guide slope 212 .

[0147] The writing sleeve rod is in a reset telescopic state, and the upper sleeve rod 2 and the lower sleeve rod 1 are transmitted through the pen core 5. The core retracting spring 4 is arranged between the core outlet of the writing sleeve rod and the writing end of the pen core 5.

[0148] The execution part 11 and the limiting part 21 cooperate with each other to limit when needed and shorten the length of the writing sleeve rod through a detachable limiting structure. When not needed, the limiting part is released and the length of the writing sleeve rod is restored.

[0149] In order to control the maximum distance that the writing sleeve rod can be extended and retracted, the writing sleeve rod is provided with a stopper 12 and a matching slot. The stopper 12 is provided on the upper sleeve rod 2; the matching slot is provided on the lower sleeve rod 1. The movable distance of the stopper 12 in the matching slot is the maximum distance that the upper sleeve rod 2 and the lower sleeve rod 1 can extend and retract from each other.

[0150] In order to facilitate installation, the mating slot is one-way through, so that the anti-slip portion 12 can move more easily in the mating slot. The mating slot is provided with an anti-slip portion 22, which limits the moving distance of the anti-slip portion 12 in the mating slot and the anti-slip portion 12 is not easy to fall out of the anti-slip portion 22.

[0151] The core-out method is the same as that in Example 1, which is pulling out the core.

[0152] The core collecting methods are: 1. Push-pull core collecting, 2. Pull-up core collecting, 3. Press-down core collecting. Example 6

[0153] like Figures 14 to 15 The pull-up pen shown in the figure comprises a retractable writing sleeve, a refill 5 and a refill spring 4.

[0154] The writing sleeve rod comprises a lower sleeve rod 1 and an upper sleeve rod 2 which are sleeved together;

[0155] The refill 5 is located inside the writing sleeve; the refill spring 4 is located between the refill 5 and the writing sleeve;

[0156] By extending and retracting the writing sleeve, the pen core 5 can be positioned in the writing sleeve, either in the reel-in position or in the reel-out position.

[0157] The writing sleeve rod is provided with a positioning assembly, which includes an execution part 11 and a limiting part 21; the execution part 11 is provided on the lower sleeve rod 1, and the limiting part 21 is provided on the upper sleeve rod 2;

[0158] When the refill is ejected, the execution portion 11 moves upward to the limiting portion 21 and is restricted by the limiting portion 21 so that the writing end of the refill 5 remains exposed from the writing sleeve.

[0159] When the refill is retracted, the execution portion 11 and the limiting portion 21 are separated, and the writing end of the refill 5 is completely retracted into the writing sleeve.

[0160] The execution part 11 has a certain deformation capability and is further provided with a matching boss 111 .

[0161] A core-out guide slope 212 is further provided on the upper side of the mating boss 111 .

[0162] In order to facilitate the use of pressing and collecting the core, the upper sleeve rod 2 is further provided with an extension pressing member A. When the extension pressing member A is pressed down, it will transmit to the execution part 11, affecting the downward displacement of the execution part 11.

[0163] In order to facilitate the replacement of the refill, the execution part 11 and the limiting part 21 are provided with a detachable limiting structure. When needed, the limiting structure is coordinated to shorten the length of the writing sleeve rod. When not needed, the limiting structure is released to restore the length of the writing sleeve rod. Specifically,

[0164] In order to control the maximum extension and retraction distance of the writing sleeve rod, the limiting portion 21 is further provided with a core receiving groove 211; the movable distance of the matching boss 111 in the core receiving groove 211 is the maximum extension and retraction distance of the upper sleeve rod 2 and the lower sleeve rod 1.

[0165] The core is pulled out by pulling it out. When the upper sleeve rod 2 is kept stationary, the lower sleeve rod 1 is moved toward the upper sleeve rod 2 and the boss 111 is engaged with the limiting portion 21 .

[0166] When the tail end of the pen core is against the upper sleeve rod, the upper sleeve rod also includes the pen holding area. When writing, the writing force acts on the upper sleeve rod, and the matching limiting force between the execution part 11 and the limiting part 21 only needs to be slightly greater than the elastic force of the core-retracting spring. At this time, the core can be retracted by pulling the upper sleeve rod and the lower sleeve rod respectively with both hands. Example 7

[0167] like Figures 17 to 19 The pull-up pen shown in the figure comprises a retractable writing sleeve, a refill 5 and a refill spring 4.

[0168] The writing sleeve rod comprises a lower sleeve rod 1 and an upper sleeve rod 2 which are sleeved together;

[0169] The refill 5 is located inside the writing sleeve; the refill spring 4 is located between the refill 5 and the writing sleeve;

[0170] By extending and retracting the writing sleeve, the pen core 5 can be positioned in the writing sleeve, either in the reel-in position or in the reel-out position.

[0171] The writing sleeve rod is provided with a positioning assembly, which includes an execution part 11 and a limiting part 21; the execution part 11 is provided on the lower sleeve rod 1, and the limiting part 21 is provided on the upper sleeve rod 2;

[0172] When the refill is ejected, the execution portion 11 moves upward to the limiting portion 21 and is restricted by the limiting portion 21 so that the writing end of the refill 5 remains exposed from the writing sleeve.

[0173] When the refill is retracted, the execution portion 11 and the limiting portion 21 are separated, and the writing end of the refill 5 is completely retracted into the writing sleeve.

[0174] The execution part 11 has a certain deformation capability and is further provided with a matching boss 111 .

[0175] To facilitate the pressing and retracting of the writing core, the upper sleeve rod 2 is further provided with an extended pressing member A. When the extended pressing member A is pressed down, it transmits power to the actuator 11, affecting the downward displacement of the actuator 11; the extended pressing member A is close to the front end of the writing sleeve rod, making it easier to press and retract the writing core.

[0176] The writing sleeve rod is in a reset telescopic state, and the upper sleeve rod 2 and the lower sleeve rod 1 are transmitted through the pen core 5. The core retracting spring 4 is arranged between the core outlet of the writing sleeve rod and the writing end of the pen core 5.

[0177] In order to facilitate the replacement of the refill, the execution part 11 and the limiting part 21 are provided with a detachable limiting structure. When needed, the limiting structure is coordinated to shorten the length of the writing sleeve rod. When not needed, the limiting structure is released to restore the length of the writing sleeve rod.

[0178] The upper sleeve rod 2 can also be disassembled to obtain a core replacement component C.

[0179] In order to achieve self-locking, the upper sleeve rod 2 is also provided with a core-outlet guide slope 212. When the core is retracted, when the mating boss 111 is located in the gap between the upper sleeve rod 2 and the lower sleeve rod 1, the width of the core-outlet guide slope 212 is limited, so that the upper side or lower side of the core-outlet guide slope 212 forms a core-outlet area X, and the areas on both sides or one side of the core-outlet guide slope 212 are self-locking areas Z, so that the mating boss 111 enters the self-locking area Z by rotation, thereby achieving self-locking; then, in addition to axial movement, the upper sleeve rod and the lower sleeve rod can also rotate slightly to meet the rotation requirements of the self-locking function.

[0180] In order to control the maximum extension and retraction distance of the writing sleeve rod, the writing sleeve rod is provided with a stopper 12 and a matching slot. The stopper 12 is provided on the lower sleeve rod 1; the matching slot is provided on the upper sleeve rod 2. The movable distance of the stopper 12 in the matching slot is the maximum distance that the upper sleeve rod 2 and the lower sleeve rod 1 can extend and retract with each other.

[0181] The core is pulled out by pulling it out. When the upper sleeve rod 2 is kept stationary, the lower sleeve rod 1 is moved toward the upper sleeve rod 2 and the boss 111 is engaged with the limiting portion 21 .

[0182] When the tail end of the pen core is against the upper sleeve rod, the upper sleeve rod also includes the pen holding area. When writing, the writing force acts on the upper sleeve rod, and the matching limiting force between the execution part 11 and the limiting part 21 only needs to be slightly greater than the elastic force of the core-retracting spring. At this time, the core can be retracted by pulling the upper sleeve rod and the lower sleeve rod respectively with both hands. Example 8

[0183] like Figures 20 to 21 The pull-up pen shown in the figure comprises a retractable writing rod, a pen core 5 and a core-retracting spring 4.

[0184] The writing sleeve rod comprises a lower sleeve rod 1 and an upper sleeve rod 2 which are sleeved together;

[0185] The refill 5 is located inside the writing sleeve; the refill spring 4 is located between the refill 5 and the writing sleeve;

[0186] By extending and retracting the writing sleeve, the pen core 5 can be positioned in the writing sleeve, either inward or outward.

[0187] The writing sleeve rod is provided with a positioning assembly, which includes an execution part 11 and a limiting part 21; the execution part 11 is provided on the lower sleeve rod 1, and the limiting part 21 is provided on the upper sleeve rod 2;

[0188] When the refill is ejected, the execution portion 11 moves upward to the limiting portion 21 and is restricted by the limiting portion 21 so that the writing end of the refill 5 remains exposed from the writing sleeve.

[0189] When the refill is retracted, the execution portion 11 and the limiting portion 21 are separated, and the writing end of the refill 5 is completely retracted into the writing sleeve.

[0190] The execution portion 11 has a certain deformation capability. A matching groove 113 is further provided on the execution portion 11 , and a limiting boss 214 is further provided on the limiting portion 21 .

[0191] To facilitate press-to-retract the writing core, the upper sleeve 2 is also equipped with a release member, namely an extended press member A. When pressed downward, the extended press member A transmits power to the actuator 11, affecting the downward displacement of the actuator 11. The extended press member A is close to the front end of the writing sleeve, making it easier to press and retract the writing core from the front end.

[0192] The writing sleeve rod is in a reset telescopic state, and the upper sleeve rod 2 and the lower sleeve rod 1 are transmitted through the pen core 5. The core retracting spring 4 is arranged between the core outlet of the writing sleeve rod and the writing end of the pen core 5.

[0193] In order to facilitate the replacement of the refill, the execution part 11 and the limiting part 21 are provided with a detachable limiting structure. When needed, the limiting structure is coordinated to shorten the length of the writing sleeve rod. When not needed, the limiting structure is released to restore the length of the writing sleeve rod.

[0194] The upper sleeve rod 2 can also be disassembled to obtain a core replacement component C.

[0195] The execution part 11 is further provided with a core-outlet guide slope 212 .

[0196] In order to control the maximum extension and retraction distance of the writing sleeve rod, the writing sleeve rod is provided with a stopper 12 and a matching slot. The stopper 12 is provided on the lower sleeve rod 1; the matching slot is provided on the upper sleeve rod 2. The movable distance of the stopper 12 in the matching slot is the maximum distance that the upper sleeve rod 2 and the lower sleeve rod 1 can extend and retract with each other.

[0197] The core is pulled out by pulling it out. When the upper sleeve rod 2 is kept stationary, the lower sleeve rod 1 is moved toward the upper sleeve rod 2 and the boss 111 is engaged with the limiting portion 21 .

[0198] When the tail end of the pen core is against the upper sleeve rod, the upper sleeve rod also includes the pen holding area. When writing, the writing force acts on the upper sleeve rod, and the matching limiting force between the execution part 11 and the limiting part 21 only needs to be slightly greater than the elastic force of the core-retracting spring. At this time, the core can be retracted by pulling the upper sleeve rod and the lower sleeve rod respectively with both hands. Example 9

[0199] like Figures 22 to 23 The illustrated lifting pen is a pen lift pen. Based on the embodiment 8, a core-exiting and receiving self-locking member 7 is added to the core-exiting and receiving self-locking member C. The core-exiting and receiving self-locking member 7 replaces the function of the core-exiting and receiving self-locking member C in the embodiment 8 to push the pen core.

[0200] The fitting distance between the core-collecting self-locking part 7 and the upper sleeve rod 2 or the core-changing part C can be changed by rotating or pulling, so that the internal space of the writing sleeve rod becomes longer or shorter. When the core-collecting self-locking part 7 causes the internal space of the writing sleeve rod to become shorter, the core can be collected normally through the positioning component at this time. When the core-collecting self-locking part 7 causes the internal space of the writing sleeve rod to become longer, the core cannot be extracted normally, and it is in a self-locking state at this time. This method achieves self-locking by changing the length of the internal space of the writing sleeve rod. Example 10

[0201] like Figures 24 to 26 The lifting pen shown in the figure is based on Example 6, in which the core receiving groove 11 is enlarged, and the area with the core outlet guide slope 212 above is the core outlet area X, while the area without the core outlet guide slope 212 above forms the self-locking area Z, so that the execution part 11 can enter the self-locking area Z by rotating, thereby achieving self-locking.

[0202] like Figures 27 to 29 The pull-up pen shown in the figure comprises a retractable writing sleeve, a refill 5 and a refill spring 4.

[0203] The writing sleeve rod comprises a lower sleeve rod 1 and an upper sleeve rod 2 which are sleeved together;

[0204] The refill 5 is located inside the writing sleeve; the refill spring 4 is located between the refill 5 and the writing sleeve;

[0205] By extending and retracting the writing sleeve, the pen core 5 can be positioned in the writing sleeve, either in the reel-in position or in the reel-out position.

[0206] The writing sleeve rod is provided with a positioning assembly, which includes an execution part 11 and a limiting part 21; the execution part 11 is provided on the lower sleeve rod 1, and the limiting part 21 is provided on the upper sleeve rod 2;

[0207] When the refill is ejected, the execution portion 11 moves upward to the limiting portion 21 and is restricted by the limiting portion 21 so that the writing end of the refill 5 remains exposed from the writing sleeve.

[0208] When the refill is retracted, the execution portion 11 and the limiting portion 21 are separated, and the writing end of the refill 5 is completely retracted into the writing sleeve.

[0209] The execution portion 11 has a certain deformation capability. A matching groove 113 is further provided on the execution portion 11 , and a limiting boss 214 is further provided on the limiting portion 21 .

[0210] To facilitate press-to-retract the ink cartridge, the actuator 11 is also provided with a release element, namely, a press-to-retract projection D. Pressing the press-to-retract projection D affects the downward movement of the actuator 11. The press-to-retract projection D is positioned against the front end of the writing rod, facilitating front-end operation for press-to-retract the ink cartridge.

[0211] The writing sleeve rod is in a reset telescopic state, and the upper sleeve rod 2 and the lower sleeve rod 1 are transmitted through the pen core 5. The core retracting spring 4 is arranged between the core outlet of the writing sleeve rod and the writing end of the pen core 5.

[0212] The upper sleeve rod 2 can also be disassembled to obtain a core replacement component C.

[0213] The execution part 11 is further provided with a core-outlet guide slope 212 .

[0214] In order to control the maximum distance of the extension and retraction of the writing sleeve rod, the execution pressing boss D will generate a limit between the limiting portion 21. After the execution pressing boss D and the limiting portion 21 come into contact, it is the maximum distance that the upper sleeve rod 2 and the lower sleeve rod 1 can extend and retract with each other.

[0215] In order to ensure that the limiting boss 214 does not continuously press against the execution part 11 when the core is retracted, a corresponding limiting groove 116 is further provided on the execution part for accommodating the limiting boss 214 when the core is retracted.

[0216] The core is pulled out by pulling it out. When the upper sleeve rod 2 is kept stationary, the lower sleeve rod 1 is moved toward the upper sleeve rod 2 and the boss 111 is engaged with the limiting portion 21 .

[0217] When the tail end of the pen core is against the upper sleeve rod, the upper sleeve rod also includes the pen holding area. When writing, the writing force acts on the upper sleeve rod, and the matching limiting force between the execution part 11 and the limiting part 21 only needs to be slightly greater than the elastic force of the core-retracting spring. At this time, the core can be retracted by pulling the upper sleeve rod and the lower sleeve rod respectively with both hands.

[0218] Additional description of this utility model:

[0219] 1. There is a certain space between the execution part 11 and the pen core, so that there is enough space when the execution part 11 or the matching boss 111 needs to move toward the pen core.

Claims

1. A pull-up pen, comprising a retractable writing sleeve, a refill (5) and a refill spring (4), characterized in that: The writing sleeve rod comprises a lower sleeve rod (1) and an upper sleeve rod (2) which are sleeved together; The pen core (5) is located inside the writing sleeve rod; the core retracting spring (4) is located between the pen core (5) and the writing sleeve rod; By extending and retracting the writing sleeve, the pen core (5) can be changed into two positions, namely, the core is received and the core is output, in the writing sleeve; The writing sleeve rod is provided with a positioning assembly, and the positioning assembly includes an execution part (11) and a limiting part (21); when the execution part (11) is provided on the upper sleeve rod (2), the limiting part (21) is provided on the lower sleeve rod (1), and vice versa; The core-out is performed by pulling the core out.

2. The pull-up pen according to claim 1, characterized in that: The writing sleeve rod is also provided with one or more releasing members, and the releasing members are used to indirectly or directly cause the execution part (11) and the limiting part (21) to separate.

3. The pull-up pen according to claim 1, characterized in that: The execution portion (11) and / or the limiting portion (21) have a certain deformation capability.

4. The pull-up pen according to claim 1, characterized in that: The writing sleeve rod is provided with an anti-slip assembly, which includes an anti-slip portion (22) and a stop portion (12). When the anti-slip portion (22) is provided on the upper sleeve rod (2), the stop portion (12) is provided on the lower sleeve rod (1), and vice versa.

5. The pull-up pen according to claim 2, characterized in that: The release member can take the following forms:

1. Slip ring set (3), single ring or double ring; 2. Rotating fitting (6); 3. Extended push piece (A); 4. Press the boss (D).

6. The pull-up pen according to claim 5, characterized in that: When the execution part (11) does not cooperate with the slip ring assembly (3), the execution part (11) is further provided with a slip ring push part (31) that cooperates with the slip ring assembly (3).

7. The pull-up pen according to claim 5, characterized in that: A return spring (B) is also provided between the slip ring assembly (3) and the writing sleeve rod.

8. The pull-up pen according to claim 5, characterized in that: The executive part (11) is further provided with a rotation control part (61); the rotating fitting part (6) is provided with one or more rotation adjustment parts (62) matching the rotation control part (61); when the rotating fitting part (6) rotates, the executive part (11) is displaced through the rotation adjustment part (62) and the rotation control part (61).

9. The pull-up pen according to claim 5, characterized in that: The extended pressing piece (A) is specifically arranged on the lower sleeve rod (1), the slip ring assembly (3), the rotating fitting (6) or the upper sleeve rod (2).

10. The pull-up pen according to claim 5, characterized in that: The execution part (11) is also provided with a pressing transmission part (112) that cooperates with the extended pressing piece (A).

11. The pull-up pen according to claim 5, characterized in that: The extended pressing member (A) or the executing pressing boss (D) is located at a distance from the pen core (5) 3-35mm or 45-180MM at the writing end.

12. A pull-up pen according to any one of claims 1 and 11, characterized in that: The execution part (11) and the limiting part (21) cooperate with each other to limit when needed and shorten the length of the writing sleeve rod through a detachable limiting structure. When not needed, the limiting part is released and the length of the writing sleeve rod is restored.

13. The pull-up pen according to any one of claims 1 and 11, characterized in that: The upper sleeve rod (2) or the lower sleeve rod (1) can also be disassembled to obtain a core replacement component (C).

14. The pull-up pen according to any one of claims 1 and 11, characterized in that: The limiting portion (21) is further provided with a core receiving groove (211).

15. The pull-up pen according to any one of claims 1 and 11, characterized in that: The upper sleeve rod (2) and / or the lower sleeve rod (1) are also provided with a core-outlet guide slope (212).

16. The pull-up pen according to any one of claims 1 and 11, characterized in that: The tail of the upper sleeve rod (2) is provided with a core-exiting self-locking piece (7).

17. The pull-up pen according to any one of claims 1 and 11, characterized in that: A matching boss (111) is also provided on the execution portion (11).

18. The pull-up pen according to any one of claims 1 and 11, characterized in that: A matching groove (113) is further provided on the execution portion (11), and a limiting boss (214) is further provided on the limiting portion (21).

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