Pressing type writing tool

Abstract

A pressing type writing tool comprises a penholder, a refill, a pressing head, a rotating wheel and a pen clip, the pressing head can be axially installed at the tail end of the penholder in a pressing mode, the rotating wheel is rotatably installed in the penholder and located between the pressing head and the refill, when the pressing head is pressed, the rotating wheel is switched between a refill returning position and a refill discharging position, the pen clip is hinged to the outer side of the penholder, and the pen clip is hinged to the outer side of the penholder. The connecting end of the pen clip is provided with a linkage piece extending into the pen holder, when the rotating wheel is located at the refill outlet position, the linkage piece and the rotating wheel are in axial interference, and when the clamping end of the pen clip is opened, the linkage piece presses the rotating wheel downwards so that the rotating wheel can rotate and be switched to the refill return position. The pressing type writing tool has various refill returning modes, and the refill is not easy to damage and clothes are not easy to pollute when the pressing type writing tool is worn.

Description

Technical Field

[0001] The invention relates to the technical field of stationery products, and in particular to a push-type writing tool. Background Art

[0002] Compared with traditional writing tools with pen caps, push-type writing tools are more convenient and do not have the risk of losing the pen caps, so they are becoming more and more popular. A Chinese invention patent with authorization announcement number CN210501977U discloses a push-type writing tool, which has a structure as follows Figure 1 As shown, it includes a pen body 1a, a refill 2a arranged in the pen body 1a, a push head 3a, a rotating wheel 4a and a guide rail 5a, the guide rail 5a is provided with a guide groove 6a and a toothed structure, the rotating wheel 4a and the push head 3a are respectively provided with a rotating wheel boss 7a and a push head boss 8a which are slidably connected to the guide groove 6a, the top of the rotating wheel 4a is provided with a toothed structure corresponding to the bottom of the guide rail 5a, and the bottom of the push head 3a is provided with a toothed structure corresponding to the top of the rotating wheel 4a; when the push head 3a is pressed, the push head 3a presses the rotating wheel 4a downward and drives the rotating wheel 4a to rotate a preset angle and then disengage from the guide groove 6a, at which time the rotating wheel 4a is limited on the toothed structure of the guide rail 5a to extend the pen refill 2a, and when the push head 3a is pressed again, the rotating wheel 4a rotates a preset angle and then disengages from the toothed structure, at which time the rotating wheel 4a returns to the initial position through the guide groove 6a to retract the pen refill 2a.

[0003] However, the existing push-type writing instruments have the following technical problems: the refill method is single, and when the refill is forgotten and the pen is worn, the refill 2a is easily damaged and the clothes are contaminated. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a push-type writing tool which has various ways of returning the refill and is not easy to damage the refill or stain clothes when worn.

[0005] The technical solution of the present invention is: a push-type writing tool, including a pen barrel, a pen core, a push head, a rotating wheel, and a pen clip. The push head can be axially pressed and installed at the tail end of the pen barrel. The rotating wheel is rotatably installed in the pen barrel and is located between the push head and the pen core. When the push head is pressed, the rotating wheel switches between a core return position and a core output position. The pen clip is hinged on the outside of the pen barrel. The connecting end of the pen clip is provided with a linkage member extending into the pen barrel. When the rotating wheel is in the core output position, the linkage member interferes with the rotating wheel axially. When the clamping end of the pen clip is opened, the linkage member presses down the rotating wheel to rotate and switch to the core return position.

[0006] The working principle of the push-type writing tool of the present invention is as follows:

[0007] Assuming that the wheel is at the core-out position in the initial state, the push head is pressed, the push head axis presses the wheel downward and drives the wheel to rotate the set angle and switch to the core-return position, at which time the pen refill is retracted; the push head is pressed again, the push head axis presses the wheel downward and drives the wheel to rotate the set angle again, at which time the wheel switches to the core-out position, and the pen refill extends out; assuming that the wheel is at the core-out position when wearing, the clamping end of the pen clip is opened, and the linkage part connected to the connecting end of the pen clip will press down the wheel, causing the wheel to rotate the set angle, at which time the wheel switches from the core-out position to the core-return position, and the pen refill is retracted, thereby preventing the pen refill from being damaged or contaminated by clothing when the pen is worn if the refill is forgotten.

[0008] After adopting the above structure, the present invention has the following advantages:

[0009] The push-type writing tool of the present invention can not only retract the pen core by pressing the push head, but also retract the pen core by opening the pen clip, so the retracting method is more diverse; and when the pen core is forgotten to be retracted and the pen is worn, the opening of the pen clip will drive the linkage part to press down the rotating wheel, so that the rotating wheel is switched to the retracting position, so that the pen core is retracted, thereby preventing the pen core from being exposed and causing damage to the pen core or contamination to clothes.

[0010] As a preferred embodiment, the invention further comprises a tail plug arranged in the tail end of the pen holder, wherein the push head and the rotating wheel are both installed in the tail plug. This arrangement enables the tail plug, the push head and the rotating wheel to be made into independent modules, which is convenient for automated production and installation.

[0011] Preferably, it also includes a plurality of first guide grooves arranged on the inner side of the tail plug, and a limiting rib arranged between the first guide grooves, a first guide block is arranged on the outer side of the rotating wheel, a first elastic member is arranged on the refill, and a second elastic member is arranged on the press head, the first guide block and the limiting rib are abutted against each other to make the rotating wheel at the core-out position, the first guide block slides upward through the first guide groove to make the rotating wheel return to the core-return position, and when the rotating wheel is at the core-out position, the linkage member and the first guide block of the rotating wheel axially interfere. This arrangement makes the guiding structure of the core-out position and the core-return position very simple, and is easy to combine with the linkage member to form another core-return structure.

[0012] Preferably, the linkage member comprises a sleeve portion axially slidably disposed between the pen shaft and the tail plug. Since the sleeve portion is disposed in an annular manner between the pen shaft and the tail plug, the axial sliding of the linkage member is more stable.

[0013] Preferably, a protrusion is provided on the inner side of the sleeve, a first slot connecting the protrusion and the rotating wheel is provided on the side wall of the tail plug, and the protrusion interferes axially with the first guide block when the rotating wheel is at the core-out position. The protrusion is arranged on the inner side of the sleeve so that the protrusion can follow the axial movement of the sleeve, thereby reliably pressing down the rotating wheel and reliably switching the rotating wheel to the core-returning position.

[0014] Preferably, a guide surface for driving the rotating wheel to rotate is provided between the bottom of the protrusion and the top of the first guide block. When the clamping end of the pen clip is opened, the protrusion presses down the first guide block and the rotating wheel is rotated to the return position under the action of the guide surface. This arrangement can convert the axial movement of the protrusion into the rotational movement of the rotating wheel by using only a guide surface with a simple structure.

[0015] Preferably, the inner side of the sleeve is further provided with a slider that is axially slidably matched with the first slot, and the protrusion is arranged on the slider. This arrangement uses the slider and the first slot to guide the axial movement of the sleeve, thereby ensuring that the protrusion inside the sleeve can reliably press down the rotating wheel to realize the core return.

[0016] Preferably, the top of the sleeve is provided with a push rod, the top of the push rod is provided with a first inclined push block, the connecting end of the pen clip is provided with a second inclined push block, the first inclined push block abuts against the bottom of the second inclined push block and the contact surface of the two is an inclined surface, when the clamping end of the pen clip is opened, the first inclined push block slides relative to the second inclined push block and the sleeve moves axially downward relative to the tail plug. This arrangement can reliably convert the rotation of the pen clip into the axial movement of the sleeve by using a simple inclined surface structure.

[0017] Preferably, a second slot connecting the first inclined top block and the second inclined top block is provided on the side wall of the pen holder, a hinge seat is provided on the outer side of the pen holder and below the second slot, the pen clip is hinged on the hinge seat, and a limiting groove matching the first inclined top block is provided on the top of the hinge seat. This arrangement can not only limit the extreme movement position of the first inclined top block, but also enable the downward pressure of the second inclined top block to be reliably converted to the first inclined top block.

[0018] Preferably, the side wall of the tail plug is further provided with a third slot which is axially slidably matched with the push rod portion. The third slot is used to guide the axial movement of the push rod portion, thereby reliably converting the rotation of the pen clip into the axial movement of the push rod portion.

[0019] Preferably, the push rod is arranged just above the protrusion, and the third slot is connected to just above the first slot. This arrangement has a reasonable layout, a simplified structure, and is more convenient for processing the first slot and the third slot.

[0020] Preferably, the top of the second slot is open, and a stopper is provided at the top of the tail plug, and when the tail plug is installed in the pen holder, the stopper is limited at the opening of the second slot. This arrangement can locate the installation position of the tail plug and the pen holder, ensuring rapid installation and reliable matching of each component.

[0021] Preferably, a second guide structure is provided between the push rod and the pen holder, and a third guide structure is provided between the sleeve and the pen holder, for guiding the axial movement of the push rod and the sleeve on the pen holder. This arrangement can ensure that both the push rod and the sleeve can reliably slide axially in the pen holder.

[0022] Preferably, the second guide structure and the third guide structure are arranged on two sides of the pen holder opposite to each other. This arrangement can make the force on the linkage part more uniform, thereby making the axial movement of the linkage part more stable.

[0023] Preferably, a third elastic member is provided on the sleeve portion of the linkage member. The third elastic member can not only realize the automatic reset of the pen clip and the linkage member, but also ensure that the pen clip clamps the clothes when worn. In addition, installing the third elastic member on the sleeve portion is also very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an existing push-type writing tool;

[0025] Figure 2 It is a schematic structural diagram of the push-type writing tool of the present invention in the core-out state;

[0026] Figure 3 A top view of the push-type writing tool of the present invention;

[0027] Figure 4 for Figure 3 Cross-sectional view along the middle edge at AA' (in the core-out state);

[0028] Figure 5 for Figure 3 Cross-sectional view at the middle edge AA' (in the core-returning state);

[0029] Figure 6 An exploded schematic diagram of the push-type writing tool of the present invention;

[0030] Figure 7 Mainly shows the matching diagram of tail plug, push cap and linkage parts;

[0031] Figure 8 Another schematic diagram mainly showing the coordination of the tail plug, the push cap and the linkage parts;

[0032] In the prior art figure: 1a-penholder, 2a-pen core, 3a-press head, 4a-rotating wheel, 5a-guide rail, 6a-guide groove, 7a-rotating wheel boss, 8a-press head boss;

[0033] In the figure of the present invention: 1-penholder, 2-pen core, 3-press head, 4-rotating wheel, 5-pen clip, 6-tail plug, 7-first elastic member, 8-second elastic member, 9-linkage member, 10-third elastic member, 11-first guide groove, 12-limiting rib, 13-first guide block, 14-sleeve portion, 15-protrusion, 16-guide surface, 17-first slot, 18-slider, 19-rod portion, 20-first inclined ejector block, 21-second inclined ejector block, 22-second slot, 23-hinged seat, 24-limiting groove, 25-third Slot, 26-limiting block, 27-first rotating tooth, 28-second rotating tooth, 29-first annular protrusion, 30-second annular protrusion, 31-second guide block, 32-second guide groove, 33-third guide block, 34-third guide groove, 35-fourth guide groove, 36-fourth guide block, 37-first limiting step, 38-second limiting step, 39-third limiting step, 40-fourth limiting step, 41-fifth limiting step, 42-sixth limiting step, 43-pressing cap, 44-connecting end, 45-clamping end. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0035] Example:

[0036] like Figure 2-8 As shown, it includes a pen body 1, a pen core 2, a push head 3, a rotating wheel 4, and a pen clip 5. The push head 3 can be axially pressed and installed at the rear end of the pen body 1. The rotating wheel 4 is rotatably installed in the pen body 1 and is located between the push head 3 and the pen core 2. When the push head 3 is pressed, the rotating wheel 4 switches between the core return position and the core output position. The pen clip 5 is hinged on the outer side of the pen body 1. The connecting end 44 of the pen clip 5 is provided with a linkage member 9 extending into the pen body 1. When the rotating wheel 4 is at the core output position, the linkage member 9 axially interferes with the rotating wheel 4. When the clamping end 45 of the pen clip 5 is opened, the linkage member 9 presses down the rotating wheel 4 to rotate and switch the rotating wheel 4 to the core return position; when the rotating wheel 4 is at the core output position, the pen core 2 extends out of the pen body 1, and when the rotating wheel 4 is at the core return position, the pen core 2 retracts into the pen body 1; the rotational matching structure of the push head 3 and the rotating wheel 4 adopts Existing technology can be used. In this embodiment, it is achieved by setting a first rotating tooth 27 at the bottom end of the push head 3 and a second rotating tooth 28 at the top end of the rotating wheel 4. When the push head 3 is pressed axially, the beveled tooth surface on the first rotating tooth 27 slides along the beveled tooth surface on the second rotating tooth 28, and the rotating wheel 4 rotates circumferentially under the action of the combined force. Each time the push head 3 is pressed, it will drive the rotating wheel 4 to rotate by a preset angle; in this embodiment, the tail plug 6 is snap-connected to the pen body 1, and the snap-connecting structure includes a first annular protrusion 29 arranged on the outside of the tail plug 6, and a second annular protrusion 30 arranged on the inside of the pen body 1. When the first annular protrusion 29 of the tail plug 6 is snap-connected to the second annular protrusion 30 of the pen body 1, the tail plug 6 is snap-connected to the pen body 1; in this embodiment, the positions of the upper, lower, top and bottom ends are as follows: Figure 4 shall prevail.

[0037] The push-type writing instrument of the present invention can not only return the rotating wheel 4 to the core by pressing the push head 3, but also return the rotating wheel 4 to the core by opening the pen clip 5, and the return method is more diverse; and when the pen is worn in the case of forgetting to return the core, the opening of the pen clip 5 will drive the linkage member 9 to press down the rotating wheel 4, so that the rotating wheel 4 switches to the return position, thereby retracting the pen core 2, thereby preventing the pen core 2 from being exposed and causing damage to the pen core 2 or contamination to clothes.

[0038] The pen holder 1 also includes a tail plug 6 disposed in the tail end thereof, and the push head 3 and the rotating wheel 4 are both installed in the tail plug 6. This arrangement enables the tail plug 6, the push head 3 and the rotating wheel 4 to be made into independent modules, which is convenient for automated production and installation.

[0039] It also includes a plurality of first guide grooves 11 arranged on the inner side of the tail plug 6, and a limiting rib 12 arranged between the first guide grooves 11, a first guide block 13 is arranged on the outer side of the rotating wheel 4, a first elastic member 7 is arranged on the pen core 2 and a second elastic member 8 is arranged on the pressing head 3, when the first guide block 13 is misaligned with the first guide groove 11, the first guide block 13 and the limiting rib 12 abut against each other to make the rotating wheel 4 located at the core-out position, when the first guide block 13 is aligned with the first guide groove 11, the first guide block 13 slides upward through the first guide groove 11 to make the rotating wheel 4 return to the core-returning position, when the rotating wheel 4 is located at the core-out position, the linkage member 9 axially interferes with the first guide block 13 of the rotating wheel 4; in this embodiment, the top end of the first guide groove 11 is closed and the limiting rib 12 is arranged between the bottom ends of the first guide groove 11, when the first guide block 13 of the rotating wheel 4 slides to abut against the top end of the first guide groove 11, the rotating wheel 4 is located at the core-returning position. This arrangement makes the guiding structure of the core-out position and the core-returning position very simple, and is easy to combine with the linkage member 9 to form another core-returning structure.

[0040] The linkage member 9 comprises a sleeve portion 14 axially slidably disposed between the pen holder 1 and the tail plug 6. Since the sleeve portion 14 is disposed in an annular manner between the pen holder 1 and the tail plug 6, the axial sliding of the linkage member 9 is more stable.

[0041] A protrusion 15 is provided inside the sleeve 14, and a first slot 17 connecting the protrusion 15 and the runner 4 is provided on the side wall of the tail plug 6. When the runner 4 is at the core-out position, the protrusion 15 axially interferes with the first guide block 13. The protrusion 15 is arranged inside the sleeve 14 so that the protrusion 15 can move axially with the sleeve 14, thereby reliably pressing down the runner 4 and reliably switching the runner 4 to the core-returning position.

[0042] A guide surface 16 for driving the rotating wheel 4 to rotate is provided between the bottom of the protrusion 15 and the top of the first guide block 13. When the clamping end 45 of the pen clip 5 is opened, the protrusion 15 presses down the first guide block 13 and the rotating wheel 4 is rotated to the return position under the action of the guide surface 16. This arrangement can convert the axial movement of the protrusion 15 into the rotational movement of the rotating wheel 4 by only using the guide surface 16 with a simple structure.

[0043] The inner side of the sleeve portion 14 is also provided with a slider 18 that is axially slidably matched with the first slot 17, and the protrusion 15 is arranged on the slider 18. This arrangement uses the slider 18 and the first slot 17 to guide the axial movement of the sleeve portion 14, thereby ensuring that the protrusion 15 on the inner side of the sleeve portion 14 can reliably press down the wheel 4 to realize the core return.

[0044] The top of the sleeve 14 is provided with a push rod 19, the top of the push rod 19 is provided with a first inclined push block 20, the connecting end 44 of the pen clip 5 is provided with a second inclined push block 21, the first inclined push block 20 abuts against the bottom of the second inclined push block 21 and the contact surface of the two is an inclined surface, when the clamping end 45 of the pen clip 5 is opened, the first inclined push block 20 slides relative to the second inclined push block 21 and the sleeve 14 moves axially downward relative to the tail plug 6. This arrangement uses a simple inclined surface structure to reliably convert the rotation of the pen clip 5 into the axial movement of the sleeve 14.

[0045] A second slot 22 connecting the first inclined ejector block 20 and the second inclined ejector block 21 is provided on the side wall of the pen barrel 1, and a hinge seat 23 is provided on the outer side of the pen barrel 1 and below the second slot 22. The pen clip 5 is hinged on the hinge seat 23, and a limiting groove 24 matching the first inclined ejector block 20 is provided on the top of the hinge seat 23. This arrangement can not only limit the extreme movement position of the first inclined ejector block 20, but also enable the downward pressure of the second inclined ejector block 21 to be reliably converted to the first inclined ejector block 20.

[0046] The side wall of the tail plug 6 is also provided with a third slot 25 that axially slides with the top rod 19. The third slot 25 is used to guide the axial movement of the top rod 19, thereby reliably converting the rotation of the pen clip 5 into the axial movement of the top rod 19.

[0047] The push rod portion 19 is arranged just above the protrusion 15, and the third slot 25 is connected just above the first slot 17. This arrangement has a reasonable layout, a simplified structure, and the processing of the first slot 17 and the third slot 25 is more convenient.

[0048] The top end of the second slot 22 is open, and a stopper 26 is provided at the top end of the tail plug 6. When the tail plug 6 is installed in the pen barrel 1, the stopper 26 is limited at the opening of the second slot 22. This arrangement can locate the installation position of the tail plug 6 and the pen barrel 1, ensuring rapid installation and reliable matching of various components.

[0049] A second guide structure is provided between the top rod portion 19 and the pen barrel 1, and a third guide structure is provided between the sleeve portion 14 and the pen barrel 1, for guiding the axial movement of the top rod portion 19 and the sleeve portion 14 on the pen barrel 1; in this embodiment, the second guide structure includes a second guide block 31 provided on the top rod portion 19 and a second guide groove 32 provided on the inner side of the pen barrel 1, and the third guide structure includes a third guide block 33 provided on the sleeve portion 14 and a third guide groove 34 provided on the inner side of the pen barrel 1. This arrangement can ensure that both the top rod portion 19 and the sleeve portion 14 can reliably slide axially in the pen barrel 1.

[0050] The second guide structure and the third guide structure are arranged on both sides of the pen holder 1. This arrangement can make the force on the linkage member 9 more uniform, so that the axial movement of the linkage member 9 is more stable.

[0051] The sleeve portion 14 of the linkage member 9 is provided with a third elastic member 10. The third elastic member 10 can not only realize the automatic reset of the pen clip 5 and the linkage member 9, but also ensure that the pen clip 5 clamps the clothes when worn. In addition, the third elastic member 10 is installed on the sleeve portion 14, which is also very convenient.

[0052] A plurality of fourth guide grooves 35 are further provided on the inner side of the tail plug 6, and a fourth guide block 36 axially slidingly matched with the fourth guide groove 35 is further provided on the outer side of the pressing head 3. The pressing head 3 is axially movablely installed in the tail plug 6 through the fourth guide block 36 and the fourth guide groove 35. In this embodiment, the top end of the fourth guide groove 35 is closed, so that the pressing head 3 is limited at the top end of the fourth guide groove 35 under the action of the restoring force of the second elastic member 8. The axial guide structure of the pressing head 3 is simple, and the position of the pressing head 3 can be limited when restoring.

[0053] In this embodiment, the first elastic member 7, the second elastic member 8 and the third elastic member 10 are all compression springs; a first limiting step 37 is provided on the outer side of the pen core 2, and a second limiting step 38 is provided on the inner side of the pen body 1, and the second limiting step 38 is closer to the pen tip. One end of the first elastic member 7 abuts against the first limiting step 37 and the other end abuts against the second limiting step 38; it also includes a pressing cap 43 arranged on the top of the pressing head 3, the top of the pressing head 3 is embedded in the bottom of the pressing cap 43 and the two are tightly matched, and the pressing cap One end of 43 is exposed outside the pen body 1 and a third limiting step 39 is formed between the other end and the push head 3. A fourth limiting step 40 is provided on the inner side of the tail plug 6. One end of the second elastic member 8 abuts against the third limiting step 39 and the other end abuts against the fourth limiting step 40. A fifth limiting step 41 is provided on the outer side of the sleeve portion 14, and a sixth limiting step 42 is provided on the inner side of the pen body 1. One end of the third elastic member 10 abuts against the fifth limiting step 41 and the other end abuts against the sixth limiting step 42.

[0054] The working principle of the push-type writing tool of this embodiment is as follows:

[0055] Assume that in the initial state, the rotating wheel 4 is at the core-out position, at which time the first guide block 13 abuts against the limiting rib 12 in the tail plug 6, and the pen core 2 extends out of the pen barrel 1; the pressing cap 43 is pressed, the first elastic member 7 and the second elastic member 8 are compressed, and the pressing head 3 is axially pressed downward under the guidance of the fourth guide block 36 and the fourth guide groove 35 until it abuts against the rotating wheel 4, and then drives the rotating wheel 4 to move downward together, the rotating wheel 4 is separated from the limiting rib 12, and rotates at a set angle under the action of the first rotating tooth 27 and the second rotating tooth 28 to align the first guide block 13 with the first guide groove 11; release the pressing cap 43, the pressing cap 43 and the pressing head 3 are pressed downward under the action of the second elastic member 8 The rotary wheel 4 is reset, and the rotary wheel 4 slides along the first guide groove 11 driven by the first elastic member 7. When the first guide block 13 of the rotary wheel 4 abuts against the top of the first guide groove 11, the rotary wheel 4 switches to the core return position, and the pen core 2 retracts at this time; the pressing cap 43 is pressed again, and the pressing head 3 presses the rotary wheel 4 to make the first guide block 13 of the rotary wheel 4 disengage from the first guide groove 11, and then the rotary wheel 4 rotates again by a set angle under the action of the first rotating tooth 27 and the second rotating tooth 28, so that the first guide block 13 is misaligned with the first guide groove 11; the pressing cap 43 is released, and the pressing cap 43 and the pressing head 3 are reset under the action of the second elastic member 8, and the rotary wheel 4 is reset at the first elastic member 8. Under the action of the elastic member 7, it is pressed against the limiting rib 12 of the tail plug 6. At this time, the rotating wheel 4 switches to the core-out position, and the pen core 2 extends out; when the rotating wheel 4 is in the core-out position, it is worn, the clamping end 45 of the pen clip 5 is stretched open, and the second inclined top block 21 on the connecting end 44 of the pen clip 5 presses down the first inclined top block 20 of the linkage member 9, and the first elastic member 7 is compressed. At the same time, the first inclined top block 20 slides relative to the second inclined top block 21 and the sleeve part 14 moves axially downward relative to the tail plug 6. When the sleeve part 14 moves axially downward, the raised part 15 on the inner side thereof presses down the first guide block 13 on the rotating wheel 4, and the first guide block 13 is separated from the limiting rib 12 of the tail plug 6. , the rotating wheel 4 rotates to a set angle under the action of the first guide surface 16, so that the first guide block 13 is aligned with the first guide groove 11, and then under the action of the first elastic member 7, the first guide block 13 is driven to slide in the first guide groove 11. When the first guide block 13 abuts against the top of the first guide groove 11, the rotating wheel 4 returns to the core return position. At this time, the pen core 2 retracts into the pen shaft 1, so that when the pen is worn without returning the core, the pen core 2 is prevented from being exposed, causing damage to the pen core 2 or contamination to the clothes; the pen clip 5 is released, and the linkage member 9 and the pen clip 5 return to the initial position under the action of the third elastic member 10, and the pen clip 5 clamps the clothes.

Claims

1. A push-type writing tool, comprising a pen barrel (1), a pen core (2), a push head (3), a rotating wheel (4), and a pen clip (5), wherein the push head (3) is axially pushably mounted at the rear end of the pen barrel (1), the rotating wheel (4) is rotatably mounted in the pen barrel (1) and is located between the push head (3) and the pen core (2), when the push head (3) is pressed, the rotating wheel (4) switches between a core return position and a core output position, the pen clip (5) is hinged to the outside of the pen barrel (1), a connecting end (44) of the pen clip (5) is provided with a linkage member (9) extending into the pen barrel (1), when the rotating wheel (4) is located at the core output position, the linkage member (9) axially interferes with the rotating wheel (4), when the clamping end (45) of the pen clip (5) is opened, the linkage member (9) presses down the rotating wheel (4) so ​​that the rotating wheel (4) rotates and switches to the core return position.

2. A push-type writing tool according to claim 1, characterized in that: It also includes a tail plug (6) arranged in the tail end of the pen holder (1), and the push head (3) and the rotating wheel (4) are both installed in the tail plug (6).

3. A push-type writing tool according to claim 2, characterized in that: The invention also comprises a plurality of first guide grooves (11) arranged on the inner side of the tail plug (6), and limiting ribs (12) arranged between the first guide grooves (11); a first guide block (13) is arranged on the outer side of the rotating wheel (4); a first elastic member (7) is arranged on the refill (2), and a second elastic member (8) is arranged on the pressing head (3); the first guide block (13) abuts against the limiting ribs (12) so that the rotating wheel (4) is located at the core-out position; the first guide block (13) slides upward through the first guide groove (11) so that the rotating wheel (4) returns to the core-returning position; when the rotating wheel (4) is located at the core-out position, the linkage member (9) interferes axially with the first guide block (13) of the rotating wheel (4).

4. A push-type writing tool according to claim 3, characterized in that: The linkage member (9) comprises a sleeve portion (14) axially slidably disposed between the pen shaft (1) and the tail plug (6).

5. A push-type writing tool according to claim 4, characterized in that: A protrusion (15) is provided on the inner side of the sleeve portion (14), and a first slot (17) connecting the protrusion (15) and the rotating wheel (4) is provided on the side wall of the tail plug (6); when the rotating wheel (4) is located at the core-out position, the protrusion (15) and the first guide block (13) interfere axially.

6. A push-type writing tool according to claim 5, characterized in that: A guide surface (16) for driving the rotating wheel (4) to rotate is provided between the bottom of the protruding portion (15) and the top of the first guide block (13); when the clamping end (45) of the pen clip (5) is opened, the protruding portion (15) presses down the first guide block (13) and, under the action of the guide surface (16), the rotating wheel (4) is rotated and switched to a return position.

7. The push-type writing tool according to claim 5, characterized in that: The inner side of the sleeve portion (14) is also provided with a sliding block (18) which is axially slidably matched with the first slot (17), and the protrusion (15) is arranged on the sliding block (18).

8. The push-type writing tool according to claim 5, characterized in that: The top end of the sleeve portion (14) is provided with a push rod portion (19), the top end of the push rod portion (19) is provided with a first inclined push block (20), the connecting end (44) of the pen clip (5) is provided with a second inclined push block (21), the first inclined push block (20) abuts against the bottom of the second inclined push block (21) and the contact surface between the two is an inclined surface, when the clamping end (45) of the pen clip (5) is opened, the first inclined push block (20) slides relative to the second inclined push block (21) and the sleeve portion (14) moves axially downward relative to the tail plug (6).

9. A push-type writing tool according to claim 8, characterized in that: A second slot (22) connecting the first inclined top block (20) and the second inclined top block (21) is provided on the side wall of the pen barrel (1); a hinge seat (23) is provided on the outer side of the pen barrel (1) and below the second slot (22); the pen clip (5) is hinged on the hinge seat (23); and a limiting groove (24) matching the first inclined top block (20) is provided on the top of the hinge seat (23).

10. The push-type writing tool according to claim 8, characterized in that: The side wall of the tail plug (6) is also provided with a third slot (25) which is axially slidably matched with the push rod portion (19).

11. The push-type writing tool according to claim 10, characterized in that: The push rod portion (19) is arranged just above the raised portion (15), and the third slot (25) is connected just above the first slot (17).

12. The push-type writing tool according to claim 9, characterized in that: The top end of the second slot (22) is open, and a limiting block (26) is provided at the top end of the tail plug (6). When the tail plug (6) is installed in the pen body (1), the limiting block (26) is limited at the opening of the second slot (22).

13. The push-type writing tool according to claim 8, characterized in that: A second guide structure is provided between the push rod portion (19) and the pen shaft (1), and a third guide structure is provided between the sleeve portion (14) and the pen shaft (1), for guiding the axial movement of the push rod portion (19) and the sleeve portion (14) on the pen shaft (1).

14. A push-type writing tool according to claim 13, characterized in that: The second guide structure and the third guide structure are arranged opposite to each other on two sides of the pen holder (1).

15. The push-type writing tool according to claim 4, characterized in that: A third elastic member (10) is provided on the sleeve portion (14) of the linkage member (9).

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