Simple double-control refill discharging and collecting pen

Abstract

The invention relates to a pen, in particular to a simple double-control refill discharging and collecting pen which comprises a lower rod, an upper rod, refills and a reset spring. An outer rod is further included; a core outlet locking structure is arranged between the upper rod and the lower rod; the upper rod and the lower rod are sleeved with the outer rod, and the upper rod and the lower rod can move in the axial direction or the circumferential direction relative to the outer rod through external force to achieve core discharging / collecting; the refill is arranged in the lower rod and / or the upper rod, the reset spring is connected outside the refill in a sleeving mode and used for providing refill collecting reset force, and the tail of the refill abuts against the bottom of the upper rod through the elastic force of the reset spring.

Description

Technical Field

[0001] The invention relates to a pen, in particular to a simple double-control core-discharging and collecting pen. Background Art

[0002] Since the advent of traditional press pens, there have been few new technological breakthroughs in the writing tool industry. With the advent of lift pens, a new operating system has been created. However, the traditional press operation habit has been deeply rooted in people's minds, and based on the characteristics of consumption, the replacement of new technologies often faces doubts and challenges. How to better and faster accelerate the transformation of traditional operation methods to new lift operations is crucial. The best way is to take into account both lift and press operation methods. This can provide consumers with more choices while enriching the way consumers use it, and at the same time take into account the transition between traditional operation habits and new operation habits. This is a bridge, which is a brand new operating experience.

[0003] However, it is easier said than done. It is crucial to ensure feasibility, ease of production and cost while making a new product with two different operating methods and concepts. For example, CN201910651869.5 discloses a two-way press-telescopic pen, which can realize two different operating methods at the same time; however, it has a complex structure, many parts, and the upper and lower operations cannot be connected, and they are two separate systems. Summary of the invention

[0004] The purpose of the invention is to solve the problem that the existing pressing operation and pulling operation are difficult to achieve at a lower cost, and to provide a simple dual-control core-discharging pen with controllable cost, easy installation, and both pulling operation and pressing operation.

[0005] In order to achieve the above-mentioned invention object, the present invention adopts the following technical solutions: A simple double-control refill pen comprises a lower rod, an upper rod, a refill and a return spring; and an outer rod; a refill locking structure is arranged between the upper rod and the lower rod; the upper rod and the lower rod are both sleeved in the outer rod, and the upper rod / lower rod can respectively move axially or circumferentially relative to the outer rod to realize refilling / retracting the refill through external force.

[0006] The refill is placed inside the lower rod and / or the upper rod, and the return spring is sleeved on the outside of the refill to provide a return force for the refill. Normally, the best effect is achieved when the tail of the refill and the bottom of the upper rod are always kept in contact with each other. A refill limiting structure can also be added to the outer rod to replace the contact between the bottom of the upper rod and the tail of the refill to provide support.

[0007] The outer rod, the upper rod and the lower rod as well as the core-out locking structure therebetween need to be maintained and implemented.

[0008] When the operator holds the outer rod and moves the upper rod downward, the outer rod and the upper rod remain relatively still, and the upper rod drives the internal pen core to move, and the core-out state is maintained by the core-out locking structure; and the upper rod is moved downward again to retract the core.

[0009] When the operator holds the outer rod and moves the lower rod up at the same time, the upper rod, the outer rod and the pen core remain relatively still, the lower rod and the outer rod are relatively compressed, and the pen core is kept in the core-out state by the core-out locking structure; then the lower rod is moved up to retract the core.

[0010] Furthermore, a telescopic limiting structure is provided between the lower rod and the outer rod and between the upper rod and the outer rod, so that the lower rod and the upper rod can both slide in the outer rod and are not easy to completely separate from the outer rod.

[0011] Furthermore, the telescopic limiting structure includes a telescopic slot and an anti-slip boss, and the anti-slip boss moves in the telescopic slot.

[0012] When the telescopic slot is arranged on the upper rod or the outer rod, the anti-dropping boss is correspondingly arranged on the outer rod or the upper rod.

[0013] When the telescopic slot is arranged on the lower rod or the outer rod, the anti-dropping boss is correspondingly arranged on the outer rod or the lower rod.

[0014] Furthermore, the telescopic limiting structure includes an anti-detachment inner platform and a limiting platform. When the anti-detachment inner platform is arranged on the lower rod or the upper rod, the limiting platform is correspondingly arranged on the outer rod. Through the cooperation of the anti-detachment inner platform and the limiting platform, the lower rod or the upper rod cannot be completely separated from the outer rod.

[0015] Furthermore, a cover is installed at the top of the outer rod. When the lower rod and the upper rod are sequentially installed into the outer rod from top to bottom, the cover and the outer rod can be removably installed to limit the upper rod, or a cover is installed at the bottom of the outer rod. When the upper rod and the lower rod are sequentially installed into the outer rod from bottom to top, the cover and the outer rod can be removably installed to limit the lower rod.

[0016] Furthermore, the core-out locking structure is slidably connected to the outer rod and is not fixed to the outer rod.

[0017] Furthermore, the core-out locking structure includes a mating end controlled by the lower rod / upper rod, and at least one group of locking grooves and locking bosses arranged on the upper rod / lower rod corresponding to the mating ends, and there are core-out points and core-collecting points at different positions in the locking groove; when the upper rod is pressed or the lower rod is lifted, the mating end is guided by the locking boss to move linearly or circumferentially in the locking groove to the core-out point to realize core out, and to the core-collecting point to realize core collection.

[0018] Furthermore, the core-out locking structure includes a locking boss arranged on the inner periphery of the lower rod and an upper mating end and a lower mating end arranged on the outer periphery of the upper rod.

[0019] The locking boss is located between the upper mating end and the lower mating end.

[0020] The outer wall of the locking boss cooperates with the upper matching end and the lower matching end to guide the lower rod and the upper rod to rotate relative to the outer rod, and is placed at different core-out points or core-in points to realize core-out or core-in.

[0021] Furthermore, the upper rod includes a central axis and an outer sleeve, and the upper mating end and the lower mating end are located on the side wall of the outer sleeve; a deformation groove is opened at either end of the outer sleeve, and a positioning block is fixedly connected to the outer end of the central axis corresponding to the deformation groove.

[0022] Furthermore, the core-out locking structure includes a locking boss, on which a single-sided protruding shaft is provided; the single-sided protruding shaft is elastically clamped in the upper rod, and a mating end is fixedly provided on the lower rod. The locking boss can be guided by the mating end to rotate relative to the upper rod while pressing the single-sided protruding shaft to deform. When the mating end is not guided, the single-sided protruding shaft has an elastic restoring force that enables the locking boss to automatically reset after rotation.

[0023] Furthermore, when the mating end is guided by the locking boss to achieve linear displacement in the locking groove to realize core collection, the locking boss is on the inner side of the locking groove; when the mating end is guided by the locking boss to achieve circumferential displacement in the locking groove to realize core collection, the locking groove is located on the inner side of the locking boss, that is, the groove wall of the locking groove is provided by the locking boss.

[0024] Furthermore, when the locking groove is located on the inner side of the locking boss, the locking boss and the locking groove are both located on the outer periphery of the upper rod, and at least one of the mating ends is located on the inner end of the lower rod; the bottom of the upper rod extends into the lower rod so that the mating end can move circumferentially in the locking groove.

[0025] Furthermore, when the locking boss is inside the locking groove, the mating end moves between the locking groove and the locking boss, and the displacement distance in different directions caused by the movement is compensated by any one or a combination of two or more of the following methods: 1. The mating end has the ability to deform and bend forward and backward and / or left and right to provide deformation space compensation.

[0026] Second, the mating end rotates relative to the upper rod to provide rotational space compensation.

[0027] 3. The locking boss provides deformation space compensation.

[0028] Fourth, the upper rod is composed of two parts that can move laterally.

[0029] Furthermore, the upper rod includes a fixing member and a locking member that is displaced left and right relative to the fixing member. The locking member is connected to the fixing member in a transverse sliding manner without relative vertical displacement. The locking groove is located on the locking member, and the lower end of the locking member is against the pen core.

[0030] Furthermore, a transverse displacement groove for limiting the locking member is provided at the upper end of the fixing member, and the lower end is sleeved with the locking member to prevent it from falling.

[0031] Furthermore, the mating end is detachably mounted on the lower rod and is capable of circumferentially rotating relative to the lower rod.

[0032] Furthermore, the mating end includes a displacement compensating part and a positioning end, the positioning end is located on the inner wall of the displacement compensating part, the positioning end is movably located in the locking groove, and the displacement compensating part is located on the inner side of the upper rod and is restricted from vertical movement but can rotate according to the cooperation between the mating end and the locking groove.

[0033] Furthermore, the cross-section of the displacement compensating part is annular or arc-shaped, the upper end of the upper rod corresponding to the displacement compensating part protrudes inward to limit the upward movement of the displacement compensating part, and the cross-section of the lower end of the corresponding displacement compensating part is a cylindrical, annular or arc-shaped groove structure that limits its vertical movement but allows rotation.

[0034] Furthermore, the upper rod includes a locking member and a fixing member; the locking member and the fixing member are detachably connected, and the locking member is located on the inner side of the displacement compensation member.

[0035] Furthermore, the mating end can rotate relative to the lower rod by degrees, and the outer wall of the mating end is provided with guiding inclined surfaces of different angles to cooperate with the locking groove wall to guide the rotation by degrees.

[0036] Furthermore, the mating end, the locking groove or the locking boss is provided with guide slopes in different directions to guide the core out and to lock and retain the core out.

[0037] Furthermore, an internal pressing boss is provided on the lower rod; an external pressing boss is provided on the outer rod; a transmission slope is provided on the internal pressing boss, and the transmission slope is in contact with the upper end of the external pressing boss, and the internal pressing boss, the external pressing boss and the transmission slope constitute a core-collecting pressing structure.

[0038] Furthermore, the lower rod is provided with a rotation control end, the outer rod is an outer rod body and a rotation rod which are sleeved together, and the rotation rod is provided with a rotation slope; when the rotation rod is rotated, the rotation control end is affected to move upward through the rotation slope.

[0039] Furthermore, the simple dual-control core-extracting and core-retracting pen has both the core-extracting and core-retracting functions of lifting and pulling and the core-retracting functions of pressing, and has both the core-retracting and core-retracting functions of lifting and pulling and the core-retracting functions of pressing; and no matter what method the operator adopts to extract the core, the core-retracting can be achieved at least by lifting and pulling and by pressing; no matter what method the operator adopts to retract the core, the core-extracting and core-retracting functions can be achieved; at the same time, the lifting and pulling out / core-retracting described in the present invention mainly refers to the bottom-up operation method; the technical effect of indirectly controlling the upward movement of the lower rod 1 can be achieved by adding a third-party accessory or structure; and pressing the core-retracting mainly refers to the top-down operation method, and the technical effect of indirectly controlling the downward movement of the upper rod 2 can be achieved by adding a third-party accessory or structure.

[0040] Compared with the prior art, the above technical solution has the following beneficial effects: 1. The present invention is extremely groundbreaking. The core lies in that a third-party reference system - an external rod is added and the external rod is used as a reference system, thereby solving the purpose of simultaneous pulling and pressing operations at the lowest cost, and achieving outstanding substantial features and significant progress at the simplest point.

[0041] 2. Fewer parts, simple installation, controllable cost, and ready for mass production.

[0042] 3. The core-out locking mechanism is not limited and has excellent scalability. According to the principle of the present invention, more cost-controlled technical solutions with multiple operating modes can be developed.

[0043] 4. Under the premise of realizing more abundant functions, universal refills can still be used internally, taking into account the general industry standards, so that the length of the standard whole pen can still be maintained at the regular refill length.

[0044] 5. Add an outer rod spring to solve the problem of the outer rod shaking up and down when the core is ejected, making the product more integrated.

[0045] 6. The essence of the present invention is to completely open up the channels for the lower rod to move out / retract the core and the upper rod to move out / retract the core. Compared with traditional pens, only one necessary component is added to achieve complete functions, and this function can be echoed up and down, that is, the movement of the lower rod to move out / retract the core can be achieved by moving the upper rod downward. The two use one system to switch between locking the core and retracting the core, so they can be unobstructed; while the bidirectional press-telescopic pen disclosed in the comparative document CN201910651869.5 uses two systems, regardless of whether they are the same system, they cannot achieve true connection.

[0046] 7. More operating modes can be achieved by adding third-party accessories or components. For example, the upper rod can be equipped with a pen clip to increase the possibility of side operation; and the lower rod can be equipped with side pressing parts and rotating accessories to increase the possibility of side core ejection, pinching core ejection, rotating core ejection and / or rotating core collection.

[0047] 8. Both linkage and independence exist. The sixth point mentioned above talks about the linkage of core ejection and core collection brought about by the operation of the lower rod or the upper rod; however, the linkage of the present invention is mainly the linkage of core ejection locking and core collection; and when the upper rod is operated, the lower rod and the outer rod can be regarded as a relative whole; and when the lower rod is operated, the upper rod and the outer rod can also be regarded as a relative whole; this independence can better bring consumers a complete lifting operation experience and a pressing operation experience; in terms of experience, it is excellent; it can take into account the traditional complete experience while allowing it to exist at the same time, and the core ejection locking and core collection have a linkage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a front structural schematic diagram (left) and a front cross-sectional structural schematic diagram (right) and an enlarged schematic diagram of Example 1 of the present invention when the core is collected.

[0049] Figure 2 Schematic diagram of the front structure (left) and the front cross-sectional structure (right) of Example 1 of the present invention when the core is being taken out.

[0050] Figure 3 It is a schematic diagram of the three-dimensional decomposition structure of Example 1 of the present invention when the core is collected.

[0051] Figure 4 It is a schematic diagram of the three-dimensional structure of the anti-slip boss 31a when the core is collected in Example 1 of the present invention.

[0052] Figure 5 This is another schematic diagram of the three-dimensional decomposition structure of Example 1 of the present invention when the core is collected.

[0053] Figure 6 It is a schematic diagram of the three-dimensional decomposition structure of Example 2 of the present invention when the core is collected.

[0054] Figure 7 It is a front structural schematic diagram and an enlarged schematic diagram of the embodiment 2 of the present invention when the core is retracted.

[0055] Figure 8 It is a schematic diagram of the three-dimensional decomposition structure of Example 2 of the present invention when the core is taken out.

[0056] Fig. 9 It is a schematic diagram of the three-dimensional exploded structure of the upper rod 2 when the core is taken out according to the second embodiment of the present invention.

[0057] Fig.10It is a schematic diagram of the three-dimensional installation structure of the upper rod 2 when the core is removed according to the second embodiment of the present invention.

[0058] Fig.11 It is a schematic diagram of the three-dimensional exploded structure and an enlarged schematic diagram of the core-collecting embodiment 3 of the present invention.

[0059] Fig.12 It is a schematic diagram of the three-dimensional decomposition structure of Example 4 of the present invention when the core is collected.

[0060] Fig.13 It is a schematic diagram of the three-dimensional decomposition structure and an enlarged schematic diagram of the embodiment 4 of the present invention when the core is retracted from another perspective.

[0061] Fig.14 It is a schematic diagram of the three-dimensional exploded structure of the outer rod 3 when the core is retracted in Example 4 of the present invention.

[0062] Fig.15 Schematic diagram of the front structure (left) and the front cross-sectional structure (right) of Example 5 of the present invention when the core is collected.

[0063] Fig.16 It is a schematic diagram of the three-dimensional decomposed structure and an enlarged schematic diagram of the core-collecting embodiment 5 of the present invention.

[0064] Fig.17 It is a schematic diagram of the three-dimensional exploded structure of the locking member 2-0 and the fixing member 2-1 during installation when the core is collected in Example 5 of the present invention.

[0065] Fig.18 This is a schematic diagram of the three-dimensional decomposition structure of Example 6 of the present invention when the core is collected.

[0066] Fig.19 This is a schematic diagram of the three-dimensional decomposition structure of embodiment 6 of the present invention when the core is retracted from another perspective.

[0067] Fig. 20 It is a schematic diagram of the three-dimensional decomposition structure of Example 7 of the present invention when the core is collected.

[0068] Fig.21 It is a schematic diagram of the three-dimensional decomposition structure of Example 8 of the present invention when the core is collected.

[0069] Fig. 22 Schematic diagram of the three-dimensional exploded structure of the outer rod body 3x1 when the core is retracted according to Example 8 of the present invention (the dotted line in the figure indicates the position of the rotation control end 1x).

[0070] Fig.23 Schematic diagram of the front structure (left) and the front cross-sectional structure (right) of Example 9 of the present invention when the core is collected.

[0071] Fig.24 The front structural schematic diagram (left) and the front cross-sectional structural schematic diagram (right) of Example 9 of the present invention when the core is being taken out are shown.

[0072] Fig.25 The diagram is a schematic diagram of the front structure of the other side when the core is taken out (left) and a schematic diagram of the front cross-sectional structure (right) of Example 9 of the present invention.

[0073] Fig.26 It is a schematic diagram of the three-dimensional decomposition structure of Example 9 of the present invention when the core is collected.

[0074] Fig. 27 It is a schematic diagram and an enlarged schematic diagram of the three-dimensional exploded structure inside the outer rod 3 when the core is retracted in embodiment 10 of the present invention.

[0075] Fig.28 It is a schematic diagram of the three-dimensional decomposition structure of Example 11 of the present invention when the core is collected.

[0076] Fig.29 Schematic diagram of the front structure (left) and the front cross-sectional structure (right) of Example 11 of the present invention when the core is collected.

[0077] Fig.30 This is a schematic diagram of the three-dimensional decomposition structure of the upper rod 2 when the core is collected in Example 11 of the present invention.

[0078] Fig.31 It is a schematic diagram of the three-dimensional decomposition structure of Example 12 of the present invention when the core is collected.

[0079] Fig.32 This is a schematic diagram of the three-dimensional decomposition structure of the upper rod 2 when the core is collected in Example 12 of the present invention.

[0080] Fig.33 Schematic diagram of the front structure (left) and the front cross-sectional structure (right) at the core exit point A when core collection in Example 12 of the present invention.

[0081] Fig.34 It is a front structural schematic diagram (left) and a front cross-sectional structural schematic diagram (right) of the core collection point B when the core is collected in Example 12 of the present invention.

[0082] Fig.35 It is a schematic diagram of the three-dimensional decomposition structure of Example 13 of the present invention when the core is collected.

[0083] Fig.36 It is a schematic diagram of the three-dimensional decomposition structure at the core exit point A when the core is collected in Example 13 of the present invention.

[0084] Fig.37 It is a schematic diagram and an enlarged schematic diagram of the three-dimensional structure of Example 13 of the present invention when the core is retracted.

[0085] Reference numerals: Lower rod 1, matching end 11, displacement compensation part 1-1, positioning end 1-2, control slope 11a, adjustment wall 11b, lower rod body 1a, lifting body 1b, cover 1c, internal pressing boss 1f, transmission slope 1f1, rotation control end 1x.

[0086] Upper rod 2, single-sided protruding shaft 20, locking piece 2-0, sleeve 2-01, fixing piece 2-1, lateral displacement groove 2-11, buckle 2-12, central axis 2-2, positioning block 2-20, outer sleeve 2-3, deformation groove 2-30, upper mating end 2a, lower mating end 2b, locking piece 20, locking groove 21, locking boss 21a, core-outlet return slope 21a1, core-outlet guide slope 21a2, auxiliary locking boss 21ab, adjustment boss 21ac, core-outlet slope 21b, core-collecting slope 21c, core-collecting return slope 21d, guide slope 21e, core-collecting limiting wall 21f, core-outlet height slope 21g, core-collecting channel 21t, core-collecting wall 21j.

[0087] The outer rod 3, the telescopic groove 31, the anti-slip boss 31a, the anti-slip inner platform 31a1, the limit platform 31b, the external pressing boss 3f, the outer rod body 3x1, the rotating rod 3x2, and the rotating slope 3x21.

[0088] Refills 4.

[0089] Return spring 5, outer rod spring 5a.

[0090] Core exit point A, core return point B. DETAILED DESCRIPTION

[0091] The present invention is further described below in conjunction with the accompanying drawings. Example 1

[0092] like Figures 1 to 5 The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0093] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0094] The lower rod 1 is provided with a mating end 11 which can rotate relative to the lower rod 1; the upper rod 2 is provided with a locking groove 21 and a locking boss 21a, and the locking boss 21a is located on the inner side of the locking groove 21; the groove wall of the locking groove 21 is provided with a core-outlet slope 21b, a core-collecting slope 21c and a core-collecting return slope 21d; the side wall of the locking boss 21a is provided with a core-outlet return slope 21a1 and a core-outlet guide slope 21a2; the mating end 11 is movable in the locking groove 21.

[0095] When it is necessary to eject the core, the mating end 11 moves upward in the locking groove 21, and first moves to the core ejection point A above the locking boss 21a through the core ejection guide slope 21a2 and the core ejection slope 21b. At this time, the operator lets go, and the mating end 11 and the locking boss 21a are locked through the reset spring 5. At the same time, the mating end 11 is further dropped through the core ejection return slope 21a1 to prepare for core collection. At this time, it is in the core ejection state.

[0096] When the core needs to be retracted, the operator pulls up or presses the core to retract the core. At this time, the mating end 11 moves up again or the upper rod 2 moves down, and the mating end 11 is separated from the top of the locking boss 21a through the core-retracting slope 21c. At this time, the operator lets go, and the mating end 11 falls back to the core-retracting point B. At this time, the mating end 11 is offset through the core-retracting falling slope 21d to prepare for the next core output. At this time, it is in the core-retracting state.

[0097] The above-mentioned mating end 11, locking groove 21 and locking boss 21a constitute the core-out locking structure of this embodiment.

[0098] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0099] For better transmission and control, the tail of the pen core 4 is against the bottom of the upper rod 2, and a relative sliding distance is left between the upper rod 2 and the lower rod 1 for the core to be drawn out.

[0100] A telescopic limit structure is provided between the lower rod 1 and the upper rod 2 and the outer rod 3, so that the lower rod 1 and the upper rod 2 can slide inside the outer rod 3 and are not easy to separate from the outer rod 3. The lower rod 1 is provided with an anti-slip boss 31a; the outer rod 3 is provided with a telescopic slot 31, and the anti-slip boss 31a cannot be easily separated from the telescopic slot 31; when the lower rod 1 and the upper rod 2 are successively installed into the outer rod 3 from top to bottom, the cover 31c is finally engaged and installed into the outer rod 3 to limit the upper rod 2.

[0101] When the core is pulled out or pulled in, the outer rod 3 is kept stationary and the lower rod 1 is controlled to move upward. The upper rod 2 is affected by the cover 31c and cannot move further upward. It is also stationary relative to the outer rod 3. At this time, the outer rod 3 and the upper rod 2 are regarded as a whole.

[0102] When pressing the core out or pressing the core in, the outer rod 3 is kept stationary, and the upper rod 2 is controlled to move downward. The lower rod 1 is affected by the anti-slip boss 31a and the telescopic slot 31 and cannot move further downward. It is also stationary relative to the outer rod 3. At this time, the outer rod 3 and the lower rod 1 are regarded as a whole.

[0103] The lower rod 1 can be separated into a lower rod body 1a and a lifting body 1b, and the lower rod body 1a and the lifting body 1b are threadedly connected.

[0104] A cover 31c is also provided at the top of the outer rod 3. A through hole is provided in the middle of the cover 31c, which is sleeved on the outside of the upper rod 2 through the through hole, and the outer end is fixed to the upper end of the outer rod 3 by a buckle; the upper rod 2 can be displaced relative to the through hole, but is restricted by the cover 31c and cannot be separated from the outer rod 3 upward.

[0105] The anti-drop boss 31a, telescopic slot 31 and cover 31c are the telescopic limiting structures of this embodiment. Example 2

[0106] like Figures 6 to 10 The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0107] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0108] The upper rod 2 includes a fixing member 2-1 and a locking member 2-0 that can be displaced left and right relative to the fixing member 2-1. The locking member 2-0 is connected to the fixing member 2-1 by transverse sliding without relative vertical displacement. The upper end of the fixing member 2-1 is provided with a transverse displacement groove 2-11 for limiting the locking member 2-0, and the lower end is provided with a buckle 2-12 that is socketed with the socket 2-01 at the lower end of the locking member 2-0 to keep the fixing member 2-1 and the locking member 2-0 moving synchronously in the vertical direction.

[0109] A mating end 11 is fixedly provided on the lower rod 1; a locking groove 21 and a locking boss 21a are provided on the locking member 2-0, and the locking boss 21a is located on the inner side of the locking groove 21; a core-outlet slope 21b, a core-collecting slope 21c and a core-collecting return slope 21d are provided on the groove wall of the locking groove 21; a core-outlet return slope 21a1 and a core-outlet guide slope 21a2 are provided on the outer wall of the locking boss 21a; the mating end 11 is movably moved in the locking groove 21.

[0110] When it is necessary to eject the core, the mating end 11 moves upward in the locking groove 21, first through the core ejection guide slope 21a2 and the core ejection slope 21b, causing the locking piece 2-0 to shift, so that the mating end 11 moves to the core ejection point A above the locking boss 21a. At this time, the operator lets go, and the mating end 11 and the locking boss 21a are locked through the reset spring 5. At the same time, through the core ejection return slope 21a1, the locking piece 2-0 is offset again, causing the mating end 11 to fall further in preparation for core collection. This is the core ejection state.

[0111] When the core needs to be retracted, the operator pulls up or presses the core to retract the core. At this time, the mating end 11 moves up again or the upper rod 2 moves down, and the locking part 2-0 is offset through the core-retracting slope 21c, causing the mating end 11 to be separated from the top of the locking boss 21a. At this time, the operator lets go, and the mating end 11 falls back to the core-retracting point B. At this time, the locking part 2-0 is offset again through the core-retracting falling slope 21d, and the relative position relationship between the mating end 11 and the locking part 2-0 is adjusted to prepare for the next core output. At this time, it is in the core-retracting state.

[0112] The above-mentioned mating end 11, locking groove 21 and locking boss 21a constitute the core-out locking structure of this embodiment.

[0113] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0114] For better transmission and control, the tail of the pen core 4 is against the bottom of the locking member 2-0, and a relative sliding distance is left between the locking member 20 and the lower rod 1 for the core to be drawn out.

[0115] A telescopic limiting structure is provided between the lower rod 1 and the upper rod 2 , and both the lower rod 1 and the upper rod 2 can slide in the outer rod 3 and are not easy to separate from the outer rod 3 .

[0116] A through hole and a limit platform 31b are provided in the middle of the outer rod 3; an anti-slip inner platform 31a1 is provided on the upper rod 2; the anti-slip inner platform 31a1 is restricted by the limit 31b and cannot pass through the through hole upwards, while the upper rod 2 can partially pass through the through hole and be exposed to the outside for use by the operator.

[0117] The lower rod 1 is provided with an anti-slip boss 31 a ; the anti-slip boss 31 a has a deformation force; and the outer rod 3 is provided with a telescopic slot 31 .

[0118] When the upper rod 2 and the lower rod 1 are sequentially installed into the outer rod 3 from bottom to top, and the anti-slip boss 31a enters the telescopic slot 31 from bottom to top, the anti-slip boss 31a cannot easily fall out of the telescopic slot 31 downward.

[0119] When the core is pulled out or pulled in, the outer rod 3 is kept stationary and the lower rod 1 is controlled to move upward. The upper rod 2 is affected by the cover 31c and cannot move further upward. It is also stationary relative to the outer rod 3. At this time, the outer rod 3 and the upper rod 2 are regarded as a whole.

[0120] When pressing the core out or pressing the core in, the outer rod 3 is kept stationary, and the upper rod 2 is controlled to move downward. The lower rod 1 is affected by the anti-slip boss 31a and the telescopic slot 31 and cannot move further downward. It is also stationary relative to the outer rod 3. At this time, the outer rod 3 and the lower rod 1 are regarded as a whole.

[0121] The lower rod 1 is divided into a lower rod body 1a and a lifting body 1b, and the lower rod body 1a and the lifting body 1b are threadedly connected.

[0122] The above-mentioned limiting platform 31b, the anti-slip inner platform 31a1, the anti-slip boss 31a and the telescopic slot 31 are the telescopic limiting structure of this embodiment. Example 3

[0123] like Fig.11 The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0124] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0125] The lower rod 1 is provided with a mating end 11 which can be bent relative to the lower rod 1; the upper rod 2 is provided with a locking groove 21; the locking groove 21 is provided with a locking boss 21a, a core outlet height slope 21g and a core collection slope 21c; the mating end 11 can be deformed and bent left and right, and can be deformed and bent front and back, and the deformation can be restored.

[0126] From the core receiving state to the core output state, the mating end 11 is moved up or the upper rod 2 is moved down by pulling up or pressing the core output, so that the mating end 11 jumps over the locking boss 21a through the core output height slope 21g; at this time, the operator lets go, and the mating end 11 and the upper rod 2 move away from each other. At this time, the end point of the mating end 11 reaches the core output point A of the locking boss 21a; this is the core output state.

[0127] From the core-out state to the core-in state, the mating end 11 moves up or the upper rod 2 moves down by pulling the core out or pressing the core out, and the mating end 11 moves to the left through the core-integrating slope 21c. At this time, the operator lets go, and the mating end 11 returns to the core-integrating point B through the reset spring 5.

[0128] The above-mentioned matching end 11 and locking groove 21 constitute the core-out locking structure of this embodiment.

[0129] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0130] For better transmission and control, the tail of the pen core 4 is against the bottom of the upper rod 2, and a relative sliding distance is left between the upper rod 2 and the lower rod 1 for the core to be drawn out.

[0131] The telescopic limiting structure between the upper rod 2, the lower rod 1 and the outer rod 3 is as follows: a telescopic groove 31 is provided on the outer rod 3, and anti-detachment bosses 31a are respectively provided on the lower rod 1 and the upper rod 2; the anti-detachment bosses 31a move in the telescopic groove 31; the anti-detachment bosses 31a of the lower rod 1 cannot easily detach from the telescopic groove 31 downward, and the anti-detachment bosses 31a of the upper rod 2 cannot easily detach from the telescopic groove 31 upward.

[0132] The anti-drop boss 31a and the telescopic slot 31 are the telescopic limiting structures of this embodiment. Example 4

[0133] like Figure 12 to Figure 14 The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0134] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0135] The lower rod 1 is provided with a mating end 11 which can be bent relative to the lower rod 1; the upper rod 2 is provided with a locking groove 21; the locking groove 21 is provided with a locking boss 21a, a core outlet height slope 21g and a core collection slope 21c; the mating end 11 can be deformed and bent left and right, and can be deformed and bent front and back, and the deformation can be restored.

[0136] The locking groove 21 is also provided with a core collecting limiting wall 21f, a core collecting channel 21t and a core outputting falling slope 21a1. The core collecting slope 21c, the core collecting limiting wall 21f and the core outputting falling slope 21a1 have a height difference, which improves the error tolerance of the core outputting / collecting operation.

[0137] From the core-collecting state to the core-exiting state, the mating end 11 moves up or the upper rod 2 moves down by pulling up or pressing the core-exiting operation, so that the mating end 11 jumps over the locking boss 21a through the core-exiting height slope 21g; at this time, the operator lets go, and the mating end 11 and the upper rod 2 move away from each other. At this time, the end point of the mating end 11 reaches the core-exiting point A of the locking boss 21a through the core-exiting return slope 21a1, preparing for the next core-collecting; this is the core-exiting state.

[0138] From the core-out state to the core-collecting state, the mating end 11 moves up or the upper rod 2 moves down by pulling up or pressing the core out, and the mating end 11 moves left to the core-collecting channel 21t through the core-collecting slope 21c. At this time, the operator lets go, and the reset spring 5 and the core-collecting limit wall 21f prevent the mating end 11 from returning to the core-out point A, thereby making the mating end 11 return to the core-collecting point B.

[0139] The above-mentioned matching end 11 and locking groove 21 constitute the core-out locking structure of this embodiment.

[0140] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0141] For better transmission and control, the tail of the pen core 4 is against the bottom of the upper rod 2, and a relative sliding distance is left between the upper rod 2 and the lower rod 1 for the core to be drawn out.

[0142] The outer rod 3 is provided with a limit platform 31b and a through hole; the upper rod 2 is provided with an anti-slip inner platform 31a1; the anti-slip inner platform 31a1 is restricted by the limit 31b and cannot pass through the through hole upwards, while the upper rod 2 can partially pass through the through hole and be exposed to the outside for use by the operator.

[0143] The upper rod 2 and the lower rod 1 are sequentially installed into the outer rod 3 from bottom to top.

[0144] The outer rod 3 is provided with a telescopic slot 31 , and the lower rod 1 is provided with an anti-slip boss 31 a ; the anti-slip boss 31 a moves in the telescopic slot 31 and cannot be easily disengaged downward from the telescopic slot 31 .

[0145] The above-mentioned limiting platform 31b, the anti-slip inner platform 31a1, the anti-slip boss 31a and the telescopic slot 31 are the telescopic limiting structure of this embodiment. Example 5

[0146] like Figures 15 to 17 The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0147] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0148] The lower rod 1 is also provided with a mating end 11, which is installed on the lower rod 1 in a detachable manner; the mating end 11 can rotate relative to the lower rod 1; specifically, the mating end 11 includes a displacement compensation part 1-1 and a positioning end 1-2 that are fixedly connected or integrally formed, and the positioning end 1-2 is located on the inner wall of the displacement compensation part 1-1, and the cross-section of the displacement compensation part 1-1 is annular or arc-shaped, etc. The cross-section of the upper end of the upper rod 1 is a columnar, annular or arc-shaped groove or other structure that matches the displacement compensation part 1-1 to limit its vertical movement but allows rotation.

[0149] The upper rod 2 includes a locking member 2-0 and a fixing member 2-1; the locking member 2-0 and the fixing member 2-1 are detachably connected. The locking member 2-0 is located inside the displacement compensation member 1-1.

[0150] The locking member 2 - 0 is provided with a locking groove 21 ; the locking groove 21 is provided with a locking boss 21 a , a core-outlet height slope 21 g and a core-inlet slope 21 c .

[0151] The locking groove 21 is also provided with a core-collecting limiting wall 21f, a core-collecting channel 21t and a core-outgoing falling slope 21a1. The core-collecting slope 21c, the core-collecting limiting wall 21f and the core-outgoing falling slope 21a1 have a height difference, which improves the error tolerance of the core-out / core-collecting operation; the positioning end 1-2 is movably located in the locking groove 21, and is mutually restricted by the locking boss 21a, the core-outgoing height slope 21g and the core-collecting slope 21c, the core-collecting limiting wall 21f, the core-collecting channel 21t and the core-outgoing falling slope 21a1, so as to drive the displacement compensation member 1-1 to rotate.

[0152] From the core-collecting state to the core-exiting state, the mating end 11 moves up or the upper rod 2 moves down by pulling up or pressing the core-exiting operation, so that the mating end 11 jumps over the locking boss 21a through the core-exiting height slope 21g; at this time, the operator lets go, and the mating end 11 and the upper rod 2 move away from each other. At this time, the end point of the mating end 11 reaches the core-exiting point A of the locking boss 21a through the core-exiting return slope 21a1, preparing for the next core-collecting; this is the core-exiting state.

[0153] From the core-out state to the core-collecting state, the mating end 11 moves up or the upper rod 2 moves down by pulling up or pressing the core out operation, and the mating end 11 moves left to the core-collecting channel 21t through the core-collecting slope 21c. At the same time, the displacement compensation part 1-1 rotates. At this time, the operator lets go, and the reset spring 5 and the core-collecting limit wall 21f prevent the mating end 11 from returning to the core-out point A, thereby making the mating end 11 return to the core-collecting point B.

[0154] The above-mentioned matching end 11 and locking groove 21 constitute the core-out locking structure of this embodiment.

[0155] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0156] For better transmission and control, the tail of the pen core 4 is against the bottom of the upper rod 2, and a relative sliding distance is left between the upper rod 2 and the lower rod 1 for the core to be drawn out.

[0157] The telescopic limiting structure between the upper rod 2, the lower rod 1 and the outer rod 3 is as follows: a telescopic groove 31 is provided on the outer rod 3, and anti-detachment bosses 31a are respectively provided on the lower rod 1 and the upper rod 2; the anti-detachment bosses 31a move in the telescopic groove 31; the anti-detachment bosses 31a of the lower rod 1 cannot easily detach from the telescopic groove 31 downward, and the anti-detachment bosses 31a of the upper rod 2 cannot easily detach from the telescopic groove 31 upward.

[0158] The anti-drop boss 31a and the telescopic slot 31 are the telescopic limiting structures of this embodiment. Example 6

[0159] like Figure 18 to Figure 19 The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0160] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0161] The locking groove 21 is also provided with a core collecting limiting wall 21f, a core collecting channel 21t and a core outputting falling slope 21a1. The core collecting slope 21c, the core collecting limiting wall 21f and the core outputting falling slope 21a1 have a height difference, which improves the error tolerance of the core outputting / collecting operation.

[0162] The lower rod 1 is provided with a mating end 11 which can be bent relative to the lower rod 1; the upper rod 2 is provided with a locking groove 21; the locking groove 21 is provided with a locking boss 21a, a core outlet height slope 21g and a core collection slope 21c; the mating end 11 can be deformed and bent left and right, and can be deformed and bent front and back, and the deformation can be restored.

[0163] From the core-collecting state to the core-exiting state, the mating end 11 moves up or the upper rod 2 moves down by pulling up or pressing the core-exiting operation, so that the mating end 11 jumps over the locking boss 21a through the core-exiting height slope 21g; at this time, the operator lets go, and the mating end 11 and the upper rod 2 move away from each other. At this time, the end point of the mating end 11 reaches the core-exiting point A of the locking boss 21a through the core-exiting return slope 21a1, preparing for the next core-collecting; this is the core-exiting state.

[0164] From the core-out state to the core-collecting state, the mating end 11 moves up or the upper rod 2 moves down by pulling up or pressing the core out, and the mating end 11 moves left to the core-collecting channel 21t through the core-collecting slope 21c. At this time, the operator lets go, and the reset spring 5 and the core-collecting limit wall 21f prevent the mating end 11 from returning to the core-out point A, thereby making the mating end 11 return to the core-collecting point B.

[0165] The above-mentioned matching end 11 and locking groove 21 constitute the core-out locking structure of this embodiment.

[0166] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0167] For better transmission and control, the tail of the pen core 4 is against the bottom of the upper rod 2, and a relative sliding distance is left between the upper rod 2 and the lower rod 1 for the core to be drawn out.

[0168] The lower rod 1 is provided with an internal pressing boss 1f; the outer rod 3 is provided with an external pressing boss 3f; the internal pressing boss 1f is provided with a transmission slope 1f1, and by pressing the external pressing boss 3f, the external pressing boss 3f further squeezes the internal pressing boss 1f, so that the lower rod 1 moves upward relative to the outer rod 3, thereby realizing additional side pressing to control the core output and core collection.

[0169] The telescopic limiting structure between the upper rod 2, the lower rod 1 and the outer rod 3 is as follows: a telescopic groove 31 is provided on the outer rod 3, and anti-detachment bosses 31a are respectively provided on the lower rod 1 and the upper rod 2; the anti-detachment bosses 31a move in the telescopic groove 31; the anti-detachment bosses 31a of the lower rod 1 cannot easily detach from the telescopic groove 31 downward, and the anti-detachment bosses 31a of the upper rod 2 cannot easily detach from the telescopic groove 31 upward.

[0170] The anti-drop boss 31a and the telescopic slot 31 are the telescopic limiting structures of this embodiment. Example 7

[0171] The difference from Example 6 is that: like Fig. 20 A simple dual-control retractable pen is shown, wherein the lower rod 1 is provided with three internal pressing bosses 1f; and the outer rod 3 is provided with three corresponding external pressing bosses 3f.

[0172] You can use three fingers to squeeze the lower rod 1 to move it upward, which can save more effort. Example 8

[0173] The difference from Example 6 is: like Figure 21-22 The simple double-control retractable pen shown in the figure has no internal pressing boss 1f on the lower rod 1 and no external pressing boss 3f on the outer rod 3.

[0174] However, the lower rod 1 is provided with a rotation control end 1x, and the outer rod 3 is divided into an outer rod body 3x1 and a rotating rod 3x2; the outer rod body 3x1 replaces the function of the original outer rod 3; and the outer rod body 3x1 and the rotating rod 3x2 are mutually sleeved, and the rotating rod 3x2 can rotate relative to the outer rod body 3x1. The rotating rod 3x2 is provided with a rotation slope 3x21.

[0175] Keeping the outer rod body 3x1 stationary, by rotating the rotating rod 3x2, the rotating control end 1x can be affected to move upward through the rotating slope 3x21, thereby causing the lower rod 1 to move upward relative to the outer rod 3, thereby achieving additional rotation control of core output and core collection. Example 9

[0176] like Figure 23 to Figure 26 The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0177] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0178] The lower rod 1 is provided with a mating end 11 which can rotate 1360 degrees relative to the lower rod; the upper rod 2 is provided with a locking groove 21; the locking groove 21 is provided with a locking boss 21a, a core outlet slope 21b, and a core collection wall 21j; The outer wall of the mating end 11 is provided with a control slope 11a and an adjustment wall 11b at the upper and lower parts.

[0179] The operation from the core-collecting state to the core-exiting state is carried out by pulling up or pressing the core-exiting operation, so that the mating end 11 moves up or the upper rod 2 moves down, so that one corner of the mating end 11 touches the core-collecting wall 21j and deflects, specifically, rotates to the right by a specific angle, and then the control slope 11a is deflected and limited by the core-exiting slope 21b, so that the mating end 11 maintains a certain degree of deflection; at this time, the operator lets go, and the mating end 11 moves downward in a deflected posture, and through the locking boss 21a and the control slope 11a, the mating end 11 continues to deflect further to the right. At the same time, at this time, the mating end 11 is stuck at the core-exiting point A of the locking boss 21a, and it is now in the core-exiting state.

[0180] From the core-out state to the core-back state, the mating end 11 moves up or the upper rod 2 moves down by pulling the core out or pressing the core-out operation, and the mating end 11 is further deflected to the right by adjusting the wall 11b and the core-back wall 21j. At this time, the operator lets go, and the mating end 11 moves downward while maintaining the further deflected posture, and the adjusting wall 11b falls and contacts the locking boss 21a. At this time, the mating end 11 further deflects to the right and moves down to the core-back point B at the lower end of the locking boss 21a, and is now in the core-back state.

[0181] The above-mentioned matching end 11 and locking groove 21 constitute the core-out locking structure of this embodiment.

[0182] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0183] For better transmission and control, the tail of the pen core 4 is against the bottom of the upper rod 2, and a relative sliding distance is left between the upper rod 2 and the lower rod 1 for the core to be drawn out.

[0184] The telescopic limiting structure between the upper rod 2, the lower rod 1 and the outer rod 3 is as follows: a telescopic groove 31 is provided on the outer rod 3, and anti-detachment bosses 31a are respectively provided on the lower rod 1 and the upper rod 2; the anti-detachment bosses 31a move in the telescopic groove 31; the anti-detachment bosses 31a of the lower rod 1 cannot easily detach from the telescopic groove 31 downward, and the anti-detachment bosses 31a of the upper rod 2 cannot easily detach from the telescopic groove 31 upward.

[0185] The anti-drop boss 31a and the telescopic slot 31 are the telescopic limiting structures of this embodiment. Example 10

[0186] like Fig. 27 The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0187] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0188] The lower rod 1 is provided with a mating end 11 which can rotate 1360 degrees relative to the lower rod; the upper rod 2 is provided with a locking groove 21; the locking groove 21 is provided with a locking boss 21a, a core slope 21b, an auxiliary locking boss 21ab and an adjustment boss 21ac.

[0189] The outer wall of the mating end 11 is provided with control slopes 11a at the top and bottom.

[0190] From the core-collecting state to the core-outing state, the mating end 11 moves up or the upper rod 2 moves down by pulling up or pressing the core-outing operation, so that the control slope 11a of the mating end 11 touches the core-outing slope 21b and deflects, specifically rotates to the right by a specific angle. At this time, the operator lets go, and the mating end 11 moves down while maintaining the deflected posture, and through the locking boss 21a and the control slope 11a, the mating end 11 continues to deflect further to the right. At the same time, at this time, the mating end 11 is stuck at the core-outing point A of the locking boss 21a and the auxiliary locking boss 21ab, and is now in the core-outing state.

[0191] From the core-out state to the core-retracted state, the mating end 11 moves up or the upper rod 2 moves down by pulling the core out or pressing the core out, and the mating end 11 is further deflected to the right by adjusting the boss 21ac and the control slope 11a. At this time, the operator lets go, and the mating end 11 maintains a further deflected posture and moves downward, usually to a vertical state, and moves down to the core-retracting point B at the lower end of the locking boss 21a, which is now in the core-retracted state.

[0192] The above-mentioned matching end 11 and locking groove 21 constitute the core-out locking structure of this embodiment.

[0193] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0194] For better transmission and control, the tail of the pen core 4 is against the bottom of the upper rod 2, and a relative sliding distance is left between the upper rod 2 and the lower rod 1 for the core to be drawn out.

[0195] The telescopic limiting structure between the upper rod 2, the lower rod 1 and the outer rod 3 is as follows: a telescopic groove 31 is provided on the outer rod 3, and anti-detachment bosses 31a are respectively provided on the lower rod 1 and the upper rod 2; the anti-detachment bosses 31a move in the telescopic groove 31; the anti-detachment bosses 31a of the lower rod 1 cannot easily detach from the telescopic groove 31 downward, and the anti-detachment bosses 31a of the upper rod 2 cannot easily detach from the telescopic groove 31 upward.

[0196] The anti-drop boss 31a and the telescopic slot 31 are the telescopic limiting structures of this embodiment. Embodiment 11

[0197] like Figures 27 to 30 The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0198] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0199] The lower rod 1 and the upper rod 2 can rotate relative to the outer rod 3.

[0200] The inner wall of the lower rod 1 is provided with two symmetrical matching ends 11 .

[0201] The upper rod 2 is provided with a locking groove 21 and a locking boss 21a on its outer periphery; the locking groove 21 is provided with a core-outlet slope 21b, a core-collecting slope 21c and a core-collecting channel 21t on its wall; the locking boss 21a is provided with a core-outlet return slope 21a1 and a core-collecting return slope 21d; the mating end 11 moves circumferentially in the locking groove 21.

[0202] When it is necessary to eject the core, the mating end 11 moves upward in the locking groove 21, and first moves to the top of the locking boss 21a through the core ejection slope 21b. At this time, the operator lets go, and the mating end 11 falls back through the return spring 5. At the same time, the mating end 11 falls further through the core ejection return slope 21a1 and falls to the core ejection point A to prepare for core collection. At this time, it is in the core ejection state.

[0203] When the core needs to be retracted, the operator pulls up or presses the core to retract the core. At this time, the mating end 11 moves up again or the upper rod 2 moves down, and the mating end 11 rotates relative to the locking boss 21a through the core retracting slope 21c. At this time, the operator lets go, and the mating end 11 falls back again. At this time, the mating end 11 rotates again through the core retracting slope 21d, and the mating end 11 enters the core retracting channel 21t at the core retracting point B to prepare for the next core output. At this time, it is in the core retracting state.

[0204] The above-mentioned mating end 11, locking groove 21 and locking boss 21a constitute the core-out locking structure of this embodiment.

[0205] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0206] For better transmission and control, the tail of the pen core 4 is against the bottom of the upper rod 2 .

[0207] The lower rod 1 can be separated into a lower rod body 1a and a lifting body 1b, and the lower rod body 1a and the lifting body 1b are threadedly connected.

[0208] The outer rod 3 is provided with a limit platform 31b and a through hole; the lower rod body 1a is provided with an anti-detachment inner platform 31a1; the anti-detachment inner platform 31a1 is restricted by the limit 31b and cannot be detached from the outer rod 3 downward, while the lower rod body 1a can be partially exposed to the outside through the through hole and is threadedly matched with the lifting body 1b for use by the operator.

[0209] The lower rod body 1a and the upper rod 2 are sequentially assembled into the outer rod 3 from top to bottom.

[0210] A cover 31c is also provided at the top of the outer rod 3. A through hole is provided in the middle of the cover 31c, which is sleeved on the outside of the upper rod 2 through the through hole and fixed to the upper end of the outer rod 3 by a buckle; the upper rod 2 can be displaced relative to the through hole, but is restricted by the cover 31c and cannot be separated from the outer rod 3 upward.

[0211] An outer rod spring 5a is also provided between the limit platform 31b and the anti-fall-off inner platform 31a1; the outer rod spring 5a can prevent the outer rod 3 from shaking up and down easily when the whole pen is in the core-out state.

[0212] The above-mentioned limiting platform 31b, anti-slip inner platform 31a1 and cover 31c are the telescopic limiting structures of this embodiment, and a relative sliding distance for the core to be drawn in and out is reserved between the upper rod 2 and the cover 31c. Example 12

[0213] like Figure 31 to Figure 34The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0214] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0215] The lower rod 1 and the upper rod 2 can rotate relative to the outer rod 3.

[0216] The lower rod 1 is provided with a locking boss 21a.

[0217] A guide slope 21e is provided on the upper side of the locking boss 21a.

[0218] The lower side of the locking boss 21a is provided with a core-outgoing return slope 21a1, a core-collecting return slope 21d and a core-collecting channel 21t.

[0219] The upper rod 2 includes a central axis 2-2 and an outer sleeve 2-3. The outer sleeve 2-3 has an upper mating end 2a on its upper side and a lower mating end 2b on its lower side. The locking boss 21a is specifically located between the upper mating end 2a and the lower mating end 2b.

[0220] A deformation groove 2-30 is opened at either end of the outer sleeve 2-3, and a positioning block 2-20 is fixedly connected to the outer end of the center shaft 2-2 corresponding to the deformation groove 2-30. The deformation groove 2-30 can shrink the outer diameter of one end of the outer sleeve 2-3 so that the outer sleeve 2-3 can pass through the locking boss 21a so that the upper mating end 2a and the lower mating end 2b are respectively located on both sides of the locking boss 21a, and then the positioning block 2-20 is inserted into the deformation groove 2-30 to restore the outer diameter of the outer sleeve 2-3.

[0221] When it is necessary to eject the core, the lower rod 1 moves upward inside the outer rod 3, and firstly rotates the upper rod 2 and / or the lower rod 1 through the upper mating end 2a and the core ejecting slope 21b, so that the lower mating end 2b rotates to above the core ejecting point A. At this time, the operator lets go, and the upper rod 2 and the lower rod 1 move away from each other through the return spring 5. At the same time, the upper rod 2 further rotates and falls through the lower mating end 2b and the core ejecting return slope 21a1, and falls to the core ejecting point A to prepare for core collection. At this time, it is in the core ejecting state.

[0222] When the core needs to be retracted, the operator pulls up or presses the core retracting operation, and the lower rod 1 moves up again or the upper rod 2 moves down. The upper rod 2 and / or the lower rod 1 rotate through the core retracting slope 21c and the upper mating end 2a, and the lower mating end 2b rotates to the upper end of the core retracting return slope 21d. At this time, the operator lets go, and the upper rod 2 and the lower rod 1 move away from each other through the return spring 5. At this time, the lower rod 1 and / or the upper rod 2 rotate again through the core retracting return slope 21d and the lower mating end 2b, and the lower mating end 2b enters the core retracting channel 21t at the core retracting point B to prepare for the next core output. At this time, it is in the core retracting state.

[0223] The upper mating end 2a, the lower mating end 2b and the locking boss 21a are the core-out locking structure of this embodiment.

[0224] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0225] For better transmission and control, the tail of the pen core 4 is against the bottom of the upper rod 2 .

[0226] The lower rod 1 can be separated into a lower rod body 1a and a lifting body 1b, and the lower rod body 1a and the lifting body 1b are threadedly connected.

[0227] The outer rod 3 is provided with a limit platform 31b and a through hole; the lower rod body 1a is provided with an anti-detachment inner platform 31a1; the anti-detachment inner platform 31a1 is restricted by the limit 31b and cannot be detached from the outer rod 3 downward, while the lower rod body 1a can be partially exposed to the outside through the through hole and is threadedly matched with the lifting body 1b for use by the operator.

[0228] The lower rod body 1a and the upper rod 2 are sequentially assembled into the outer rod 3 from top to bottom.

[0229] A cover 31c is also provided at the top of the outer rod 3. A through hole is provided in the middle of the cover 31c, which is sleeved on the outside of the upper rod 2 through the through hole and fixed to the upper end of the outer rod 3 by a buckle; the upper rod 2 can be displaced relative to the through hole, but is restricted by the cover 31c and cannot be separated from the outer rod 3 upward.

[0230] The above-mentioned limiting platform 31b, anti-slip inner platform 31a1 and cover 31c are the telescopic limiting structures of this embodiment, and a relative sliding distance for the core to be drawn in and out is reserved between the upper rod 2 and the cover 31c. Example 13

[0231] like Figure 35 to Figure 37The simple double-control refill pen shown in the figure comprises a lower rod 1, an upper rod 2, a refill 4 and a return spring 5; it also comprises an outer rod 3; a refill locking structure is provided between the upper rod 1 and the lower rod 2; the upper rod 1 and the lower rod 2 are both sleeved in the outer rod 3, and can be telescopically displaced relative to the outer rod 3.

[0232] This embodiment has both the functions of pulling out the core and pressing the core, and also has both the functions of pulling the core and pressing the core.

[0233] A locking boss 21 a is separately provided in the upper rod 2 ; a single-side protruding shaft body 20 is provided on the locking boss 21 a ; and the single-side protruding shaft body 20 is elastically clamped in the upper rod 2 .

[0234] The lower rod 1 is fixedly provided with a mating end 11 .

[0235] The locking boss 21a can rotate left and right relative to the upper rod 2, and is affected by the elastic buckle structure of the single-side protruding shaft body 20, has the function of elastic reset, and can automatically reset after rotating left and right under the influence of the matching end 11.

[0236] The upper side of the locking boss 21a is provided with a core-outgoing return slope 21a1 and a core-incoming return slope 21d.

[0237] A core-out slope 21b is provided on the lower side of the locking boss 21a.

[0238] The core-collecting state to the core-exiting state is changed by pulling up or pressing the core-exiting operation, so that the mating end 11 moves up or the upper rod 2 moves down, so that one corner of the mating end 11 touches the guide slope 21e, and the locking boss 21a is deflected, specifically rotated to the left by a specific angle, and then a force is applied to the mating end 11 through the core-exiting slope 21b, so that the reaction force of the mating end 11 controls the locking boss 21a to rotate, and the mating end 11 passes over the core-exiting slope 21b; at this time, the operator lets go, and the locking boss 21a moves downward while maintaining the deflected posture, and is stuck at the core-exiting point A at the locking boss 21a through the core-exiting return slope 21a1, and is now in the core-exiting state.

[0239] To move from the core-out state to the core-retracting state, the mating end 11 moves up or the upper rod 2 moves down by pulling up or pressing the core out, and the locking boss 21a is automatically reset, so that the mating end 11 contacts the core-retracting return slope 21d. Guided by the core-retracting return slope 21d, the locking boss 21a rotates to the left by a specific angle, so that the mating end 11 moves down to the core-retracting point B at the lower end of the locking boss 21a, and is now in the core-retracting state.

[0240] The pen core 4 is placed in the lower rod 1 , and the return spring 5 is placed between the front end of the lower rod 1 and the front end of the pen core 4 .

[0241] For better transmission and control, the tail of the pen core 4 is against the bottom of the upper rod 2, and a relative sliding distance is left between the upper rod 2 and the lower rod 1 for the core to be drawn out.

[0242] The outer rod 3 is provided with a telescopic slot 31 , and the lower rod 1 and the upper rod 2 are respectively provided with anti-slip bosses 31 a ; the anti-slip bosses 31 a move in the telescopic slot 31 and cannot be easily detached from the telescopic slot 31 .

[0243] The telescopic limiting structure between the upper rod 2, the lower rod 1 and the outer rod 3 is as follows: a telescopic groove 31 is provided on the outer rod 3, and anti-detachment bosses 31a are respectively provided on the lower rod 1 and the upper rod 2; the anti-detachment bosses 31a move in the telescopic groove 31; the anti-detachment bosses 31a of the lower rod 1 cannot easily detach from the telescopic groove 31 downward, and the anti-detachment bosses 31a of the upper rod 2 cannot easily detach from the telescopic groove 31 upward.

[0244] The telescopic groove 31 and the anti-slip boss 31 a are the telescopic limiting structures of this embodiment.

[0245] The above is a preferred embodiment of the present invention. It is apparent to those skilled in the art that several modifications and improvements may be made without departing from the principles of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims

1. A simple dual-control refill pen, comprising a lower rod (1), an upper rod (2), a refill (4) and a return spring (5), wherein the refill (4) is placed inside the lower rod (1) and / or the upper rod (2), and the return spring (5) is sleeved on the outside of the refill (4) to provide a refill return force, characterized in that: It also comprises an outer rod (3); a core-out locking structure is provided between the upper rod (1) and the lower rod (2); the upper rod (1) and the lower rod (2) are both sleeved in the outer rod (3), and the upper rod (1) / lower rod (2) can each be displaced axially or circumferentially relative to the outer rod (3) by external force to achieve core out / in.

2. A simple dual-control refill pen according to claim 1, characterized in that: A telescopic limiting structure is provided between the lower rod (1) and the outer rod (3) and between the upper rod (2) and the outer rod (3), so that the lower rod (1) and the upper rod (2) can slide in the outer rod (3) respectively and are not easy to completely separate from the outer rod (3).

3. A simple dual-control refill pen according to claim 2, characterized in that: The telescopic limiting structure comprises a telescopic slot (31) and an anti-slip boss (31a), and the anti-slip boss (31a) moves within the telescopic slot (31); When the telescopic slot (31) is arranged on the lower rod (1) or the outer rod (3), the anti-drop boss (31a) is correspondingly arranged on the outer rod (3) or the lower rod (1); When the telescopic slot (31) is arranged on the upper rod (2) or the outer rod (3), the anti-dropping boss (31a) is correspondingly arranged on the outer rod (3) or the upper rod (2).

4. A simple dual-control refill pen according to claim 2, characterized in that: The telescopic limiting structure comprises an anti-slip inner platform (31a1) and a limiting platform (31b). When the anti-slip inner platform (31a1) is arranged on the lower rod (1) or the upper rod (2), the limiting platform (31b) is correspondingly arranged on the outer rod (3). Through the cooperation of the anti-slip inner platform (31a1) and the limiting platform (31b), the lower rod (1) or the upper rod (2) cannot be completely separated from the outer rod (3).

5. The simple dual-control refill pen according to claim 2, characterized in that: A cover (31c) is installed at the top of the outer rod (3); when the lower rod (1) and the upper rod (2) are sequentially installed into the outer rod (3) from top to bottom, the cover (31c) and the outer rod (3) are detachably installed to limit the position of the upper rod (2); or a cover (31c) is installed at the bottom of the outer rod (3); when the upper rod (2) and the lower rod (1) are sequentially installed into the outer rod (3) from bottom to top, the cover (31c) and the outer rod (3) are detachably installed to limit the position of the lower rod (2).

6. A simple dual-control refill pen according to claim 1, characterized in that: The core-out locking structure is slidably connected relative to the outer rod (3) and is not fixed to the outer rod (3).

7. A simple dual-control refill pen according to claim 6, characterized in that: The core-out locking structure comprises a mating end (11) controlled by a lower rod (1) / upper rod (2), and at least one group of locking grooves (21) and locking bosses (21a) arranged on the upper rod (2) / lower rod (1) corresponding to the mating end (11), wherein a core-out point A and a core-in point B are respectively provided at different positions in the locking groove (21); when the upper rod (1) is pressed or the lower rod (2) is lifted, the mating end (11) is guided along the locking bosses (21a) in the locking groove (21) to linearly or circumferentially displace to the core-out point A to realize core-out, and to the core-in point B to realize core-in.

8. The simple dual-control refill pen according to claim 6, characterized in that: The core-out locking structure comprises a locking boss (21a) arranged on the inner periphery of the lower rod (1) and an upper mating end (2a) and a lower mating end (2b) arranged on the outer periphery of the upper rod (2); The locking boss (21a) is located between the upper mating end (2a) and the lower mating end (2b); The outer wall of the locking boss (21a) cooperates with the upper mating end (2a) and the lower mating end (2b) to guide the lower rod (1) and the upper rod (2) to rotate relative to the outer rod (3) and are placed at different core exit points A or core collection points B to achieve core exit or core collection.

9. A simple dual-control refill pen according to claim 8, characterized in that: The upper rod (2) comprises a central axis (2-2) and an outer shaft sleeve (2-3), and an upper mating end (2a) and a lower mating end (2b) are located on the side wall of the outer shaft sleeve (2-3); A deformation groove (2-30) is provided at either end of the outer shaft sleeve (2-3), and a positioning block (2-20) is fixedly connected to the outer end of the central shaft (2-2) corresponding to the deformation groove (2-30).

10. The simple dual-control refill pen according to claim 6, characterized in that: The core-out locking structure comprises a locking boss (21a), on which a single-side protruding shaft body (20) is provided; the single-side protruding shaft body (20) is elastically clamped in the upper rod (2), and a mating end (11) is fixedly provided on the lower rod (1); the locking boss (21a) can be guided by the mating end (11) to rotate relative to the upper rod (2) while pressing the single-side protruding shaft body (20) to deform; when the mating end (11) is not guiding, the single-side protruding shaft body (20) has an elastic restoring force so that the locking boss (21a) can automatically reset after rotation.

11. The simple dual-control refill pen according to claim 6, characterized in that: When the mating end (11) is guided along the locking boss (21a) to linearly displace in the locking groove (21) to achieve core retraction, the locking boss (21a) is located on the inner side of the locking groove (21); when the mating end (11) is guided along the locking boss (21a) to circumferentially displace in the locking groove (21) to achieve core retraction, the locking groove (21) is located on the inner side of the locking boss (21a), that is, the groove wall of the locking groove (21) is provided by the locking boss (21a).

12. A simple dual-control refill pen according to claim 11, characterized in that: When the locking groove (21) is located on the inner side of the locking boss (21a), the locking boss (21a) and the locking groove (21) are both located on the outer periphery of the upper rod (2), and at least one of the mating ends (11) is located on the inner end of the lower rod (1); the bottom of the upper rod (2) extends into the lower rod (1) so that the mating end (11) can move circumferentially in the locking groove (21).

13. The simple dual-control refill pen according to claim 11, characterized in that: When the locking boss (21a) is inside the locking groove (21), the mating end (11) moves between the locking groove (21) and the locking boss (21a), and the displacement distance in different directions caused by the movement is compensated by any one or a combination of two or more of the following methods:

1. The mating end (11) has the ability to deform and bend forward and backward and / or left and right to provide deformation space compensation; Second, the mating end (11) rotates relative to the upper rod (1) to provide rotational space compensation; 3. The locking boss (21a) provides deformation space compensation; Fourth, the upper rod (2) consists of two parts that can move laterally.

14. A simple dual-control refill pen according to claim 13, characterized in that: The upper rod (2) comprises a fixing member (2-1) and a locking member (2-0) that is displaced leftward and rightward relative to the fixing member (2-1); the locking member (2-0) and the fixing member (2-1) are connected in a transverse sliding manner and do not undergo relative vertical displacement; the locking groove (21) is located on the locking member (2-0), and the lower end of the locking member (2-0) abuts against the pen core (4).

15. The simple dual-control refill pen according to claim 14, characterized in that: The upper end of the fixing member (2-1) is provided with a transverse displacement groove (2-11) for limiting the locking member (2-0), and the lower end is sleeved with the locking member (2-0) to prevent it from falling off.

16. The simple dual-control refill pen according to claim 13, characterized in that: The mating end (11) is detachably mounted on the lower rod (1) and is capable of circumferential rotation relative to the lower rod (1).

17. A simple dual-control refill pen according to claim 16, characterized in that: The mating end (11) comprises a displacement compensating member (1-1) and a positioning end (1-2), the positioning end (1-2) being located on the inner wall of the displacement compensating member (1-1), the positioning end (1-2) being movably located in a locking groove (21), and the displacement compensating member (1-1) being located on the inner side of the upper rod (1) and being restricted from vertical movement but being able to rotate according to the mating of the mating end (11) and the locking groove (21).

18. The simple dual-control refill pen according to claim 17, characterized in that: The displacement compensating member (1-1) has a cross-section that is annular or arc-shaped, the upper end of the upper rod (1) corresponding to the displacement compensating member (1-1) protrudes inwards to limit the displacement compensating member (1-1) from moving upward, and the cross-section of the lower end of the corresponding displacement compensating member (1-1) is a columnar, annular or arc-shaped groove structure that limits the displacement compensating member from moving vertically but allows rotation.

19. The simple dual-control refill pen according to claim 17, characterized in that: The upper rod (2) comprises a locking member (2-0) and a fixing member (2-1); the locking member (2-0) and the fixing member (2-1) are detachably connected, and the locking member (2-0) is located inside the displacement compensation member (1-1).

20. The simple dual-control refill pen according to claim 13, characterized in that: The mating end (11) is capable of rotating 360 degrees relative to the lower rod (1), and the outer wall of the mating end (11) is provided with guiding inclined surfaces at different angles to cooperate with the groove wall of the locking groove (21) to guide and realize 360-degree rotation.

21. The simple dual-control refill pen according to claim 1, characterized in that: The lower rod (1) is provided with an internal pressing boss (1f); the outer rod (3) is provided with an external pressing boss (3f); the internal pressing boss (1f) is provided with a transmission slope (1f1), and the transmission slope (1f1) is in contact with the upper end of the external pressing boss (3f); the internal pressing boss (1f), the external pressing boss (3f) and the transmission slope (1f1) constitute a core-collecting pressing structure.

22. The simple dual-control refill pen according to claim 1, characterized in that: The lower rod (1) is provided with a rotation control end (1x); the outer rod (3) comprises an outer rod body (3x1) and a rotation rod (3x2) which are sleeved together; the rotation rod (3x2) is provided with a rotation slope (3x21); when the rotation rod (3x2) is rotated, the rotation control end (1x) is affected to move upward through the rotation slope (3x21).

23. The simple dual-control refill pen according to claim 1, characterized in that: The simple dual-control core-out and core-out pen has both the functions of pulling out the core and pressing the core-in, and also has both the functions of pulling out the core and pressing the core-in.

24. A simple dual-control refill pen according to any one of claims 1 to 23, characterized in that: The outer rod (3), the upper rod (1) and the lower rod (2) and the core-out locking structure therebetween need to maintain and achieve: When the operator holds the outer rod (3) and moves the upper rod (2) downward, the outer rod (3) and the lower rod (1) remain relatively still, and the upper rod (2) drives the internal pen core (4) to move, and the core-out state is maintained by the core-out locking structure; When the operator holds the outer rod (3) and simultaneously moves the lower rod (1) upward, the upper rod (2), the outer rod (3) and the pen core (4) remain relatively still, the lower rod (1) and the outer rod (3) are relatively compressed, and the pen core (4) is held in the state of being ejected from the lower end thereof by the ejection locking structure and maintained in the ejection state.

25. A simple dual-control refill pen according to any one of claims 7, 8 or 10, characterized in that: The matching end (11), the locking groove (21) or the locking boss (21a) are provided with guiding slopes in different directions to guide the core out and to achieve core locking and retention.

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