CN214647134U - Pen with refill capable of being drawn without pressing - Google Patents

Abstract

The application relates to a pressure-free refill-retracting pen, which comprises a pen sleeve, a pen holder and a return spring, wherein the pen holder is arranged in the pen sleeve; the penholder can push the reset spring to stretch along the length direction of the penholder; a sleeve cover is sleeved at one end of the pen holder far away from the head of the pen sleeve and is arranged on the pen sleeve in a sliding manner along with the pen holder; a limiting lantern ring close to the cover is arranged in the pen cap, the limiting lantern ring is movably sleeved on the outer side of the pen holder, and the limiting lantern ring and the cover are coaxially arranged; the limiting lantern ring is rotatably arranged on the inner side wall of the pen cap, a buckle is arranged on the side wall, facing the limiting lantern ring, of the cap cover, and a clamping groove for the buckle to be clamped into is formed in the inner side wall of the limiting lantern ring; the buckle is provided with a push block for pushing the limiting lantern ring to rotate. This application has and receives the core or all need not to keep down the state with the pen-holder continuously when adding the core to make things convenient for the effect of adding the core and receiving the core.

Description

Pen with refill capable of being drawn without pressing

Technical Field

The application relates to the field of mechanical pencils, in particular to a pressure-free lead-retracting pen.

Background

At present, the mechanical pencil mainly comprises a pencil sleeve and a pencil holder arranged in the pencil sleeve, wherein a pencil lead is arranged in the pencil holder, and a reset spring positioned in the pencil sleeve is sleeved outside the pencil holder. When in use, the opening at the front end of the penholder is forced to open by repeatedly pressing the penholder, and the pen core can be gradually sent out from the pen point of the pen sleeve along with the repeated opening and closing of the opening of the penholder. When the penholder is pressed down, the reset spring is pushed by the penholder to keep a compressed state, when the pressure applied to the penholder is removed, the reset spring pushes the penholder to reset, and the front end of the reset penholder can clamp and fix the refill.

When a user needs to collect the pencil lead, part of users can continuously press the pencil holder manually to overcome the elastic force of the reset spring, so that the front end opening of the pencil holder is forced to continuously keep an open state, and then the user can collect the pencil lead into the pencil holder to finally finish the lead collecting work.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that, because the main user group of the mechanical pencil is a young child with a relatively small strength, when the child retracts the lead by using the above-mentioned lead retracting method, the child cannot keep the penholder in a continuously pressed state, and further the lead retracting process is inconvenient.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the core withdrawing work of a user is inconvenient, the application provides a pressure-free core withdrawing pen.

The application provides a exempt from to press and receive core pen adopts following technical scheme:

a press-free core-retracting pen comprises a pen cap; the pen holder is arranged in the pen sleeve; the return spring is sleeved outside the pen holder; the penholder can push the reset spring to stretch along the length direction of the penholder; a sleeve cover is sleeved at one end of the pen holder far away from the head of the pen sleeve and is arranged on the pen sleeve in a sliding manner along with the pen holder; a limiting lantern ring close to the cover is arranged in the pen cap, the limiting lantern ring is movably sleeved on the outer side of the pen holder, and the limiting lantern ring and the cover are coaxially arranged; the limiting lantern ring is rotatably arranged on the inner side wall of the pen cap, a buckle is arranged on the side wall, facing the limiting lantern ring, of the cap cover, and a clamping groove for the buckle to be clamped into is formed in the inner side wall of the limiting lantern ring; the buckle is provided with a push block for pushing the limiting lantern ring to rotate.

By adopting the technical scheme, when a user needs to take up the core, the user only needs to press the sleeve cover once, and when the sleeve cover is pressed, the sleeve cover pushes the pen holder to gradually compress the return spring, so that the opening of the pen holder can be gradually opened; meanwhile, the buckle arranged on the sleeve cover gradually extends into the limiting sleeve ring, when one end of the buckle is clamped in the clamping groove, the pen holder with the opening in the open state can be fixed through the clamping matching of the buckle and the clamping groove, and the opening of the pen holder can be continuously kept in the open state; at the moment, the user can smoothly feed the refill into the pen holder without continuously applying force to the pen holder, so that the refill collecting work is greatly facilitated; after the core is taken up, a user only needs to further press the sleeve cover to enable the buckle to continuously extend into the limiting sleeve ring, and the limiting sleeve ring rotates in the pen sleeve under the pushing of the push block along with the further extension of the buckle; at the moment, one end of the buckle is gradually rotated out of the clamping groove, when the buckle is completely withdrawn from the clamping groove, the pressure applied to the pen holder is removed, the pen holder is reset under the elastic action of the reset spring, and the pen core can be clamped and fixed by the opening of the pen holder; by adopting the mode, the work of adding the core is also facilitated, the refill can be plugged in from the pen holder opening in the open state, and the whole work of adding the core is very convenient and fast.

Preferably, a first cambered surface is arranged on the side wall, facing the limiting sleeve ring, of the push block, and a second cambered surface opposite to the first cambered surface is arranged on the side wall, facing the first cambered surface, of the limiting sleeve ring.

By adopting the technical scheme, when the buckle is pushed into the limiting sleeve ring, the first cambered surface is gradually close to the second cambered surface, and the first cambered surface is contacted with the second cambered surface along with the gradual extension of one end of the buckle into the limiting sleeve ring; the buckle that continuously stretches into will be through the mutual conflict of first cambered surface and second cambered surface, and spacing lantern ring of more smooth promotion is at the pen socket internal rotation.

Preferably, a first inclined plane located on one side of the clamping groove is arranged on the limiting sleeve ring, the first inclined plane extends along the direction in which the buckle exits the clamping groove, and the first inclined plane is connected with the clamping groove.

Through adopting above-mentioned technical scheme, when buckle one end was expected to follow the draw-in groove and is rolled out, first inclined plane can assist the buckle more smooth roll out from the draw-in groove for when the buckle took place relative rotation with the lateral wall of draw-in groove, the buckle can be along the more smooth and easy draw off from the draw-in groove of following of first inclined plane.

Preferably, a fourth arc surface is arranged on the inner side wall, close to the sleeve cover, of the limiting sleeve ring, the fourth arc surface is gradually inclined towards the direction close to the central shaft of the limiting sleeve ring, and the fourth arc surface is located on one side of the first inclined surface.

By adopting the technical scheme, after one end of the buckle is smoothly withdrawn from the clamping groove, the penholder is reset under the action of the elastic force of the reset spring; the buckle also will follow the pen-holder and withdraw from the stop collar intra-annular to the direction of keeping away from reset spring, and the buckle is at the in-process that withdraws from, and the ejector pad will contact with the fourth cambered surface and promote stop collar antiport in order to realize reseing to prepare the work of adding the core of next round.

Preferably, a clamping block located in the pen cap is arranged on the outer side wall of the cap, a limiting groove extending in the sliding direction of the pen holder is arranged on the inner side wall, facing the clamping block, of the pen cap, and the clamping block is arranged in the limiting groove in a sliding mode.

By adopting the technical scheme, under the common matching of the limiting groove and the clamping block, the rotation of the buckle around the central shaft of the pen holder can be limited, so that the smooth matching of the buckle and the limiting sleeve ring is ensured; meanwhile, the overall stability of the sleeve cover can be improved.

Preferably, the buckle is provided with the fifth cambered surface on deviating from the lateral wall of upper shield, the fifth cambered surface sets up along the intra-annular direction slope of buckle slip-in stop collar, stop collar is provided with on the inside wall towards the upper shield and supplies buckle male groove that moves back, move back and be provided with the sixth cambered surface towards the upper shield on the lateral wall in groove, the sixth cambered surface is to the direction slope that is close to stop collar center pin.

Through adopting above-mentioned technical scheme, when pressing the upper shield, the buckle was kept away from the one end of upper shield and will be inserted to the spacing inslot at first, along with further stretching into of buckle, the fifth cambered surface will contact with the sixth cambered surface each other, under the effect of fifth cambered surface and sixth cambered surface, buckle one end can be more smooth along the immigration of sixth cambered surface to the draw-in groove in, has played the effect of direction to the buckle through the sixth cambered surface.

Preferably, one end of the sleeve cover, which is far away from the penholder, is provided with an accommodating groove, and an eraser is placed in the accommodating groove.

By adopting the technical scheme, the eraser arranged on the cover can meet the daily use requirement of a user.

Preferably, a limiting part is arranged in the pen cap, one end of the pen holder is movably arranged in the limiting part, the reset spring is arranged in the limiting part, one end of the reset spring is abutted against the inner side wall of the limiting part, and the other end of the reset spring is abutted against the pen holder.

Through adopting above-mentioned technical scheme, the locating part can realize spacing to reset spring to enable reset spring more stable when flexible, reduce the skew that takes place when reset spring is flexible.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the refill is collected, a user can smoothly feed the refill into the pen holder without continuously applying force to the pen holder, so that the refill collection work is greatly facilitated;

2. under the effect of fifth cambered surface and sixth cambered surface, buckle one end can be more smooth along sixth cambered surface immigration to the draw-in groove in, has played the effect of direction to the buckle through the sixth cambered surface.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic sectional view taken along line a-a of fig. 1.

Fig. 3 is a schematic sectional view of a portion of the structure of fig. 1.

Fig. 4 is a sectional view of a part of the structure of fig. 2, which shows the sleeve cover after the pen holder is hidden.

Fig. 5 is an exploded view of a portion of the structure of the embossed clip of fig. 3.

Fig. 6 is a schematic view showing a partial structure of the card slot in fig. 5.

Description of reference numerals: 1. a pen cap; 11. a limiting lantern ring; 111. a card slot; 112. a second arc surface; 113. a first inclined plane; 114. a fourth arc surface; 115. a withdrawal groove; 12. a limiting groove; 2. a pen holder; 3. a return spring; 4. covering; 41. buckling; 411. a first arc surface; 412. a fifth cambered surface; 413. a sixth arc surface; 42. a clamping block; 43. accommodating grooves; 431. an eraser; 5. a limiting member; 6. and (7) pushing the block.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a pen capable of drawing a refill without pressing. Referring to fig. 1 and 2, the non-pressure core-retracting pen includes a pen cap 1, a pen holder 2 is slidably disposed in the pen cap 1 along a length direction of the pen cap, a limiting member 5 is fixedly disposed on an inner side wall of one end of the pen cap 1 close to the pen point, and the limiting member 5 extends along the length direction of the pen holder 2. A return spring 3 which extends and retracts along the sliding direction of the penholder 2 is arranged in the limiting part 5, and one end of the penholder 2 is inserted into the limiting part 5 and is arranged in the sliding way. The reset spring 3 is sleeved outside the pen holder 2, one end of the reset spring 3 is abutted against the pen holder 2, and the other end of the reset spring 3 is abutted against the inner side wall of the limiting part 5.

As shown in fig. 2 and 3, a sleeve cover 4 is sleeved on one end of the pen holder 2 away from the limiting member 5, and the sleeve cover 4 and the pen holder 2 are arranged on the pen sleeve 1 in a sliding manner. An accommodating groove 43 is formed in one end, away from the penholder 2, of the sleeve cover 4, and an eraser 431 located outside the pen sleeve 1 is placed in the accommodating groove 43. The outer side wall of the cap 4 is integrally formed with a fixture block 42 located in the pen cap 1, the inner side wall of the pen cap 1 facing the fixture block 42 is provided with a limiting groove 12 extending along the sliding direction of the pen holder 2, and the fixture block 42 is slidably disposed in the limiting groove 12.

As shown in fig. 3 and 4, a hollow position-limiting sleeve ring 11 is arranged in the pen cap 1 and is close to one side of the cap 4, and the pen holder 2 penetrates through the central shaft of the position-limiting sleeve ring 11 and is movably arranged in the position-limiting sleeve ring 11. The limiting sleeve ring 11 is arranged on the inner side wall of the pen cap 1 in a rotating mode around the central axis of the pen holder 2, and the limiting sleeve ring 11 and the cap cover 4 are coaxially arranged. The integrated into one piece has two buckles 41 that extend along pen-holder 2 length direction on the lateral wall of the position-limiting lantern ring 11 of the cover 4 orientation, and two buckles 41 are the symmetry setting. A push block 6 for pushing the limit lantern ring 11 to rotate is integrally formed at the joint of the buckle 41 and the cover 4. The inner side wall of the position limiting lantern ring 11 facing the buckle 41 is provided with a position withdrawing groove 115 for the buckle 41 to insert.

As shown in fig. 4 and 5, a sixth arc face 413 facing the buckle 41 is disposed on a side wall of the receding groove 115 away from the cover 4, and the sixth arc face 413 is inclined toward a central axis of the position-limiting collar 11. The side wall of the buckle 41 departing from the cover cap 4 is provided with a fifth cambered surface 412 facing the sixth cambered surface 413, and the fifth cambered surface 412 inclines along the direction in which the buckle 41 slides into the position-limiting lantern ring 11. When the clip 41 is pressed into the position-limiting collar 11, the end of the clip 41 away from the cap 4 is inserted into the retraction groove 115, and the clip 41 can be smoothly moved into the position-limiting collar 11 by the fifth arc surface 412 and the sixth arc surface 413 along with the further insertion of the clip 41.

As shown in fig. 5 and 6, the inner side wall of the position-limiting collar 11 is further provided with a slot 111 located on one side of the sixth arc face 413, and the receding slot 115 and the slot 111 are sequentially arranged along the length direction of the position-limiting collar 11. After the buckle 41 is smoothly inserted into the inner sidewall of the position-limiting collar 11 along the sixth arc 413, the buckle 41 will abut against the inner sidewall of the position-limiting collar 11. Along with the further income of buckle 41, when buckle 41 deviates from the one end of cover 4 and moves to draw-in groove 111 department, buckle 41 will block in to draw-in groove 111, just can realize fixing the position of cover 4 this moment for the front end opening of penholder 2 keeps opening the state continuously, thereby has made things convenient for receipts core and the work of adding the core.

As shown in fig. 5 and 6, a first arc surface 411 is arranged on the side wall of the push block 6 facing the position limiting sleeve ring 11, a second arc surface 112 opposite to the first arc surface 411 is arranged on the side wall of the position limiting sleeve ring 11 facing the first arc surface 411, the second arc surface 112 is located on one side of the retreat groove 115 and is communicated with the retreat groove 115, and the second arc surface 112 is inclined towards the direction gradually approaching the retreat groove 115. When the buckle 41 gradually extends into the position-limiting collar 11, the push block 6 will push the position-limiting collar 11 to rotate clockwise in the pen cap 1 through the mutual contact between the second arc surface 112 and the push block 6.

As shown in fig. 5 and 6, the inner side wall of the position-limiting collar 11 is further provided with a first inclined surface 113 located at one side of the slot 111, the first inclined surface 113 is connected with the slot 111, and the first inclined surface 113 extends along a direction in which the latch 41 exits from the slot 111. The inner side wall of the position-limiting sleeve ring 11 is further provided with a fourth cambered surface 114 located on one side of the retreat groove 115, and the fourth cambered surface 114 is gradually inclined towards the direction close to the central axis of the position-limiting sleeve ring 11. The fourth arc surface 114 and the second arc surface 112 are respectively located at two sides of the receding groove 115, the fourth arc surface 114 is connected with the receding groove 115, and the fourth arc surface 114 is located at one side of the first inclined surface 113 close to the cover 4. When the clamping between the buckle 41 and the clamping groove 111 needs to be released, the buckle 41 is further pressed, the limiting collar 11 continues to rotate clockwise in the pen cap 1, and meanwhile, one end, far away from the cap cover 4, of the buckle 41 moves out of the clamping groove 111 along the first inclined surface 113. The pressing force on the catch 41 is then removed, and the catch 41 will then follow the barrel 2 to withdraw from the stop collar 11 under the action of the return spring 3. When the buckle 41 contacts with the fourth cambered surface 114, under the action of the fourth cambered surface 114, the push block 6 pushes the position limiting sleeve ring 11 to rotate anticlockwise, so that the reset of the position limiting sleeve ring 11 is realized.

The implementation principle of the pressure-free retractable core pen in the embodiment of the application is as follows: when a user needs to take up or add the refill into the penholder 2, the user only needs to press the sleeve cover 4 once, when the sleeve cover 4 is pressed, the sleeve cover 4 pushes the penholder 2 to enable the return spring 3 to be gradually compressed, and at the moment, the opening of the penholder 2 can be gradually opened. Meanwhile, the buckle 41 arranged on the cover 4 gradually extends into the limiting sleeve ring 11, when one end of the buckle 41 is clamped into the clamping groove 111, the pen holder 2 with the opening in the open state can be fixed through clamping matching of the buckle 41 and the clamping groove 111, and the opening of the pen holder 2 can be continuously kept in the open state. At the moment, the user can smoothly feed the refill into the penholder 2 without continuously applying force to the penholder 2, so that the refill collection and refill adding work is greatly facilitated. After the core adding work is finished, the user only needs to further press the sleeve cover 4 to enable the buckle 41 to continue to extend into the limiting sleeve ring 11, and along with the further extension of the buckle 41, the limiting sleeve ring 11 is pushed by the push block 6 to rotate in the pen cap 1. At this moment, one end of the buckle 41 is gradually rotated out from the clamping groove 111, after the buckle 41 completely exits from the clamping groove 111, the pressure applied to the pen holder 2 is removed, the pen holder 2 is reset under the elastic action of the reset spring 3, and the pen core can be clamped and fixed by the opening of the pen holder 2.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A press-free core-retracting pen, which comprises a pen cap (1); the pen holder (2) is arranged in the pen sleeve (1); the return spring (3) is sleeved outside the pen holder (2); the pen holder (2) can push the reset spring (3) to stretch along the length direction of the pen holder (2); the method is characterized in that: a sleeve cover (4) is sleeved at one end of the pen holder (2) far away from the head of the pen sleeve (1), and the sleeve cover (4) is arranged on the pen sleeve (1) in a sliding mode along with the pen holder (2); a limiting sleeve ring (11) close to the sleeve cover (4) is arranged in the pen sleeve (1), the limiting sleeve ring (11) is movably sleeved on the outer side of the pen holder (2), and the limiting sleeve ring (11) and the sleeve cover (4) are coaxially arranged; the limiting sleeve ring (11) is rotatably arranged on the inner side wall of the pen cap (1), a buckle (41) is arranged on the side wall, facing the limiting sleeve ring (11), of the cap cover (4), and a clamping groove (111) for the buckle (41) to be clamped is formed in the inner side wall of the limiting sleeve ring (11); the buckle (41) is provided with a push block (6) for pushing the limiting lantern ring (11) to rotate.

2. The non-pressure retractable core pen of claim 1, wherein: the side wall of the push block (6) facing the limiting sleeve ring (11) is provided with a first cambered surface (411), and the side wall of the limiting sleeve ring (11) facing the first cambered surface (411) is provided with a second cambered surface (112) opposite to the first cambered surface (411).

3. The non-pressure retractable core pen of claim 2, wherein: the limiting sleeve ring (11) is provided with a first inclined plane (113) located on one side of the clamping groove (111), the first inclined plane (113) extends along the direction that the buckle (41) withdraws from the clamping groove (111), and the first inclined plane (113) is connected with the clamping groove (111).

4. The non-pressure retractable core pen of claim 3, wherein: the limiting sleeve ring (11) is provided with a fourth arc surface (114) on the inner side wall close to the sleeve cover (4), the fourth arc surface (114) is gradually inclined towards the direction close to the central shaft of the limiting sleeve ring (11), and the fourth arc surface (114) is located on one side of the first inclined surface (113).

5. The non-pressure retractable core pen of claim 1, wherein: be provided with fixture block (42) that are located pen socket (1) on the lateral wall of upper shield (4), pen socket (1) is provided with spacing groove (12) that extend along pen-holder (2) slip direction on the inside wall towards fixture block (42), fixture block (42) slide and set up in spacing groove (12).

6. The non-pressure retractable core pen of claim 1, wherein: be provided with fifth cambered surface (412) on buckle (41) deviates from the lateral wall of cover lid (4), direction slope setting in buckle (41) gliding spacing lantern ring (11) is followed in fifth cambered surface (412), spacing lantern ring (11) are provided with on the inside wall towards cover lid (4) and supply buckle (41) male groove (115) that moves back, be provided with on the lateral wall of moving back groove (115) sixth cambered surface (413) towards cover lid (4), sixth cambered surface (413) is to the direction slope that is close to spacing lantern ring (11) center pin.

7. The non-pressure retractable core pen of claim 1, wherein: an accommodating groove (43) is formed in one end, deviating from the pen holder (2), of the sleeve cover (4), and an eraser (431) is placed in the accommodating groove (43).

8. The non-pressure retractable core pen of claim 1, wherein: be provided with locating part (5) in pen socket (1), pen-holder (2) one end activity sets up in locating part (5), reset spring (3) set up in locating part (5), reset spring (3) one end is contradicted with locating part (5) inside wall, reset spring (3) other end is contradicted with pen-holder (2).

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