CN106215314B

CN106215314B - Pen core, marking pen and marking pen sleeve

Info

Publication number: CN106215314B
Application number: CN201610797806.7A
Authority: CN
Inventors: 朱远湖; 陈超敏; 卢广文
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2022-09-02
Anticipated expiration: 2036-08-31
Also published as: CN106215314A

Abstract

The invention discloses a pen core, which comprises: pen containers, nibs, ink containers and pen holders; the pen container is characterized in that a pen container through hole is formed in the bottom of the pen container, an ink container through hole is formed in the bottom of the ink container, and when the ink container rotates in the pen container, the pen container through hole and the ink container through hole can be aligned to form an ink outlet hole or staggered to form a closed opening. According to the pen core, the ink barrel is rotated, so that the through hole of the ink barrel is aligned with or dislocated with the through hole of the pen barrel, and ink leakage can be effectively prevented when a pen point is replaced. The invention also provides a marking pen with the pen core and a marking pen kit.

Description

Pen core, marking pen and marking pen sleeve

Technical Field

The invention relates to the technical field of medical instruments, in particular to a pen core, a marking pen and a marking pen kit.

Background

When the patient is subjected to radiotherapy, a vacuum bag is padded below the body of the patient, a breast bracket is arranged, and the like, and when the vacuum bag and the breast bracket are used as a posture fixing mode, marks are required to be made on the skin of the human body to be used as reference points so as to facilitate positioning.

In the prior art, in order to form a permanent mark on human skin, a needle is often used to dip ink and then penetrate the skin with the needle, leaving a mark on the skin in a "tattoo-like" manner, the needle being disposable for human health considerations, with different patients using different needles. Chinese patent document CN2834422Y discloses a tattooing pen which is composed of a disposable needle or the like, however, ink leakage is likely to occur when the disposable needle is replaced, and the medical instrument is contaminated. Therefore, how to prevent the ink leakage of the marking pen during replacement is an urgent technical problem to be solved.

Disclosure of Invention

Therefore, the invention aims to solve the technical problem that ink leakage is easy to occur when the needle head of the marking pen is replaced in the prior art, and provides the marking pen refill capable of preventing ink leakage during replacement.

The invention provides a pen core, comprising: the pen container is provided with an opening at the top end, the pen point is detachably arranged at the front end of the pen container, the ink container is provided with an opening at the top end and extends into the pen container, and the pen holder extends into the ink container;

the pen container is characterized in that a pen container through hole is formed in the bottom of the pen container, an ink container through hole is formed in the bottom of the ink container, and when the ink container rotates in the pen container, the pen container through hole and the ink container through hole can be aligned to form an ink outlet hole or staggered to form a closed opening.

The pen point can be replaced conveniently by the pen core, the pen point needs to be replaced by rotating the ink barrel firstly, the through hole of the ink barrel is staggered with the through hole of the pen barrel, so that the bottom of the ink barrel and the bottom of the pen barrel are sealed, the original ink can be prevented from leaking, the pen point can be taken down and replaced by a new pen point, and the pen core with the replaced pen point can be used continuously by rotating the ink barrel after the new pen point is installed and aligning the through hole of the ink barrel with the through hole of the pen barrel. Therefore, the pen core can prevent ink leakage when the pen point is replaced, the pen point can be used for one time, and infection when different people use the pen point can be prevented.

Preferably, the cartridge of the present invention,

the pen holder is provided with a pen head positioning groove and a pen head fixing groove, wherein the pen head positioning groove is axially arranged along the pen holder and extends to the bottom of the pen holder;

the inner wall shaping of nib has can follow the nib constant head tank and get into or withdraw from the nib fixed slot the nib fixed block.

When the pen point is rotated by external force, the pen point fixing block can move to be aligned with the pen point positioning groove, so that the pen point fixing block can move out along the pen point positioning groove, and the pen point can be taken down from the pen container,

the nib constant head tank plays the effect of the passageway that supplies the nib fixed block to pass through when the installation with dismantle the nib, and the nib fixed slot plays the effect that prevents the separation of nib and pen container and restriction nib rotation angle. By adopting the structural design, the pen point of the pen core can be very conveniently replaced, and meanwhile, the pen point of the needle head or the common pen point can be replaced according to the requirement, so that the application range can be greatly expanded.

Preferably, the cartridge of the present invention,

the inside shaping of nib has the separation blade that has the nib through-hole, and when using external force to rotate the nib, the nib through-hole aligns with the pen container through-hole and forms the hole of inking or dislocation formation sealing, and the hole of inking is formed with the pen container through-hole to the ink container through-hole or the dislocation formation sealing. After the pen point is installed in place, the pen point through hole is aligned with the pen container through hole to form a channel for ink to pass through, when the pen point needs to be disassembled, the pen point through hole and the pen container through hole are staggered to form a closed opening when the pen point fixing block is aligned with the pen point positioning groove by rotating the pen point, and meanwhile, the ink container through hole and the pen container through hole are driven to be staggered to form a closed opening, so that ink is prevented from flowing out, and the ink leakage prevention effect is further improved.

Preferably, in the pen core, the pen container through hole, the ink container through hole and the pen point through hole are two fan-shaped through holes with central angles not larger than 45 degrees, the fan-shaped through holes are arranged in a central symmetry mode, the area of each through hole can be made to be as large as possible, and ink can smoothly flow when the through holes are aligned.

The present invention also provides a marker pen comprising:

the top of the shell is opened, the bottom of the shell is provided with a bottom hole, and the outer wall of the shell is formed with a plurality of axial grooves which are arranged axially and are parallel to each other and circumferential grooves which are communicated with the tops of the axial grooves and are arranged circumferentially;

the top cover is covered on the top of the shell;

the bottom cover is covered at the bottom of the shell;

the end slider, set up in the shell, have and extend to the shell outside and can follow the stirring piece of axial groove and circumference groove motion under the exogenic action, install a plurality of foretell refills on the end slider, stir and stir the piece and can make end slider do along the axial linear motion of shell together with the refill when the axial inslot removes, make the refill that aligns with the bottom hole stretch out or retract in the bottom hole from the bottom hole, stir and stir the piece and can drive the rotation of end slider so that the refill of difference aligns the bottom hole when the circumference inslot removes.

The marking pen is internally provided with a plurality of pen cores, and different pen cores can extend out of the bottom hole for use by rotating the bottom sliding block so as to meet different requirements, such as different pen points and different colors of ink which can be directly rotated and replaced.

Preferably, in the marking pen of the present invention, a sliding groove is formed in a position, close to the top, of the outer wall of the casing, a top slider is further disposed on the casing, the top slider further has a sliding piece which is mounted outside the casing and can move along the sliding groove under an external force, the top slider can make a linear movement along the axial direction of the casing after the sliding piece is pushed, a first elastic piece is disposed between the top slider and the bottom slider, and an ink drawing through hole corresponding to the bottom hole is formed in the top cover. According to the marking pen, the pen core does not need to be taken out, the ink extracting rod only needs to extend into the shell from the ink extracting through hole, the ink extracting rod is pulled and pulled through the matching of the threads at the front end of the ink extracting rod and the screw hole of the pen holder, so that the pen holder is pulled and pulled in the ink barrel, and ink absorption is facilitated.

Preferably, in the marking pen of the present invention, the second elastic member is provided around the pen core so that the pen core can be elastically adjusted with respect to the axial position of the bottom slider in the housing, and a pen tip sleeve is formed on the inner wall of the bottom of the housing at a position corresponding to the pen core not aligned with the bottom hole. The nib sleeve supports and leans on the refill that does not need to use, makes the refill keep somewhere in the casing, sets up the nib sleeve after, the refill receives the telescopic restriction of nib, makes the nib of refill not with the diapire contact, the damage prevention nib.

Preferably, the bottom sliding block is provided with a plurality of refill fixing holes for the refills to penetrate through and fix the refills, the inner wall of each refill fixing hole is also provided with an anti-rotation groove, the outer wall of the ink barrel is provided with elongated protrusions arranged along the axial direction of the ink barrel, the barrel wall of the pen barrel is provided with a rectangular hole capable of allowing the elongated protrusions to rotate, the height of each elongated protrusion is larger than the thickness of the barrel wall of the pen barrel, and the elongated protrusions extend into the anti-rotation grooves, so that the ink barrel and the bottom sliding block cannot rotate relatively when the pen barrel rotates.

Through the structural design, the pen point can be rotated to drive the pen container to rotate without taking out the pen core, the ink container does not rotate, the pen point can be rotated to drive the pen container to rotate, and the pen container through holes and the ink container through holes are staggered or aligned, so that the pen point can be replaced under the condition that the pen core is not taken out, and the marking pen is convenient to use.

Preferably, the marking pen is further sleeved with an anti-slip sleeve outside the shell, so that medical staff can conveniently grip the marking pen by hands, friction is improved, and the position of the sliding protrusion can be controlled while the marking pen is conveniently gripped.

The invention also provides a marking pen kit, wherein the pen box comprises a box body with an opening at the top, and a box cover which is hinged to the top of the box body, a fixed seat is arranged in the box body to divide the box body into a top part and a bottom part, three layers of drawers for storing disposable needle pen points are arranged on the side surface of the bottom of the box body, a marking pen, an ink extracting rod and a plurality of common pen points are placed at the top of the box body, and ink boxes for containing different colors of ink are arranged on one side in the box body.

Preferably, in the marking pen kit of the present invention, a stopper having a through hole is formed in the bottle opening portion of the ink cartridge, and a suction pipe is further provided to penetrate through the bottom of the ink cartridge. The pen container through hole is matched with the through hole in the baffle plate to suck ink to form a channel, and the pen core is rotated after ink is sucked to form a closed opening, so that ink leakage in the ink sucking process can be prevented.

Drawings

FIG. 1 is a schematic perspective view of a marking pen according to an embodiment of the present invention;

FIG. 2a is a schematic structural diagram of a housing according to an embodiment of the present invention;

FIG. 2b is a cross-sectional view of a housing according to one embodiment of the present invention;

FIG. 3 is a schematic view of the components within the housing according to one embodiment of the present invention;

FIG. 4 is a cross-sectional view of the components of FIG. 3;

FIG. 5a is an exploded view of a cartridge according to one embodiment of the present invention;

fig. 5b is an exploded view of a cartridge according to another embodiment of the present invention;

FIG. 6a is a schematic structural view of a pen and ink cartridge according to an embodiment of the present invention;

FIG. 6b is a schematic structural view of a pen and ink cartridge according to another embodiment of the present invention;

FIG. 7a is a schematic structural view of a pen container and a pen tip according to an embodiment of the present invention;

FIG. 7b is a schematic structural view of a pen container and a pen point according to another embodiment of the present invention;

FIG. 8 is a schematic structural view of a pen container and a pen point according to an embodiment of the present invention;

FIG. 9 is a schematic structural view illustrating a cartridge according to an embodiment of the present invention;

FIG. 10 is a schematic exterior view of a pen box according to an embodiment of the present invention;

FIG. 11 is a schematic view of the interior of the pen container according to one embodiment of the present invention;

FIGS. 12a and 12b are schematic structural views of a bottom block locking mechanism according to an embodiment of the present invention;

the reference numbers in the figures are: 1-a housing; 11-bottom hole; 12-a circumferential groove; 13-axial grooves; 14-a chute; 15-sliding rail protrusion; 16-nib sleeve; 2-a top cover; 21-an ink extraction through hole; 3-sliding sheet; 31-a slider projection; 4-a pen core; 41-a pen container; 411-pen container projection; 412-pen container through hole; 413-cartridge fixation slot; 414-pen head positioning slot; 415-pen point fixing groove; 416-a rectangular hole; 417-locking projection; 42-an ink cartridge; 421-cartridge through hole; 422-cartridge projection; 423-elongated protrusions; 43-pen holder; 431-barrel rail; 432-pen holder screw hole; 44-pen point; 441-nib through hole; 442-a pen point fixing block; 5-bottom cover; 6-anti-slip sleeve; 71-bottom slider; 711-dial block; 712-cartridge fixing hole; 713-locking groove; 714-hook; 72-top slide; 81-a first elastic member; 82-a second elastic member; 91-a box body; 92-box cover; 93-a drawer; 94-a fixed seat; 95-ink cartridge; 96-ink extraction rod; 97-straw.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

The embodiment provides a marking pen, the shape of which is shown in figure 1;

the pen refill comprises a shell 1, as shown in fig. 2a and 2b, an opening is formed in the top, a bottom hole 11 is formed in the bottom, two pen point sleeves 16 are arranged on the inner wall of the shell, a sliding groove 14 is formed in a position, close to the top, of the outer wall of the shell 1, three axial grooves 13 which are axially arranged and parallel to each other and circumferential grooves 12 which are communicated with the tops of the axial grooves 13 and circumferentially arranged are formed in the middle of the outer wall of the shell, the sliding groove 14 is collinear with one of the axial grooves 13, two sliding rail protrusions 15 which are respectively collinear with the other two axial grooves 13 are formed in the inner wall of the shell 1, and an anti-skidding sleeve 6 can be preferably sleeved on the outer wall of the shell 1 and used for increasing friction force and facilitating grasping and controlling the position of a shifting block 711;

a top cover 2, which is covered on the top of the shell 1 and is provided with an ink drawing through hole 21;

a bottom cover 5, which is covered at the bottom of the shell 1;

a top slider 72, as shown in fig. 3 and 4, disposed inside the housing 1, and having a sliding piece 3 mounted outside the housing 1 and capable of moving along the sliding slot 14 under an external force, wherein the top slider 72 can move linearly along the axial direction of the housing 1 after the sliding piece 3 is pushed, a sliding piece protrusion 31 disposed opposite to the bottom hole 11 and extending toward the bottom hole 11 is formed on an inner portion of the housing 1 of the sliding piece 3, and when the sliding piece 3 is pushed by an external force, the top slider 72 can move toward the bottom cover 5, and the sliding piece protrusion 31 can contact with a pen holder 43, which is a component of a pen refill 4, and push the pen holder 43 into a cartridge 42. The penholder 43 compresses the ink cartridge 42 to extrude air existing in the newly replaced pen point 44, so as to ensure smooth ink discharge (the penholders 43 of the rest of the pen cores 4 are not contacted with any part on the top sliding block 72);

a bottom slide block 71, as shown in fig. 3 and 4, disposed in the housing 1, having a dial block 71 extending out of the housing 1 and capable of moving along the axial groove 13 and the circumferential groove 12 under the action of an external force, a first elastic member 81 being disposed between the top slide block 72 and the bottom slide block 71, three refills 4 being mounted on the bottom slide block 71, when the dial block 711 is dialed to move in the axial groove 13, the bottom slide block 71 and the refills 4 can make a linear motion along the axial direction of the housing 1, so that the refills aligned with the bottom hole 11 can be extended from the bottom hole 11 or retracted into the bottom hole 11, and when the dial block 711 is dialed to move in the circumferential groove 12, the bottom slide block 71 can be driven to rotate so that different refills 4 are aligned with the bottom hole 11;

the refill 4, as shown in fig. 5, includes a pen container 41 with an open top, a pen point 44 detachably disposed at the front end of the pen container 41, an ink container 42 with an open top extending into the pen container 41, and a pen holder 43 extending into the ink container 42;

a pen point protrusion 411 and an ink cartridge fixing groove 413 are formed on the outer wall of the pen barrel 41 (as shown in fig. 6, 7 and 8), a pen barrel through hole 412 is formed at the bottom, a pen point positioning groove 414 which is arranged along the axial direction of the pen barrel 41 and extends to the bottom of the pen barrel 41 and a pen point fixing groove 415 which is communicated with the pen point positioning groove 414 are formed on the outer wall of the pen barrel 41, the pen barrel 41 is externally sleeved with a second elastic element 82, one end of the second elastic element 82 abuts against the bottom slider 71, and one end of the second elastic element abuts against the sliding rail protrusion 15 on the pen point protrusion 411 to play a limiting role, so that the top slider 72 is driven by the sliding sheet to move linearly only along the axial direction;

the outer wall of the ink cartridge 42 (as shown in fig. 6a and 7 a) is formed with a cartridge protrusion 422 located in the cartridge fixing groove 413, the bottom of the ink cartridge 42 is formed with a cartridge through hole 421, the pen container 41 or the ink cartridge 42 is rotated by an external force, so that the ink cartridge 42 and the pen container 41 rotate relatively, and the pen container through hole 412 and the cartridge through hole 421 are aligned or misaligned, the cartridge protrusion 422 and the cartridge fixing groove 413 play a role in preventing the ink cartridge 42 from being separated from the pen container 41 and limiting a relative rotation angle of the ink cartridge 42 and the pen container 41;

the middle of the penholder 43 (as shown in fig. 9) is composed of four cross-shaped cross bars 431, and a penholder screw hole 432 is formed at the top;

the inner wall of the pen tip 44 (as shown in FIGS. 7a, 7b and 8) is formed with a tip fixing block 442 located in the tip fixing groove 415, and a stopper having a tip through hole 441 is formed therein, so that when the pen tip 44 is rotated by an external force, the tip fixing block 442 moves to be aligned with the tip positioning groove 414, so that the tip fixing block 442 can move out along the tip positioning groove 414, and thus the pen tip 44 can be removed from the pen barrel 41, when the tip fixing block 442 is aligned with the tip positioning groove 414, the tip through hole 441 is misaligned with the barrel through hole 412, when the tip fixing block 442 is located at an end of the tip fixing groove 415 away from the tip positioning groove 414, the tip through hole 441 is aligned with the barrel through hole 412, the tip positioning groove 414 functions as a passage through which the tip fixing block 441 passes when the pen tip 44 is mounted and dismounted, and the tip fixing groove 415 functions to prevent the separation of the pen tip 44 from the barrel 41 and to restrict the rotation angle of the pen tip 44, after the pen core 4 is installed in place, the pen head through hole 441 is aligned with the pen barrel through hole 412 to form a channel for ink to pass through, when the pen head 44 needs to be disassembled, the pen core 4 is rotated to enable the pen head fixing block 441 to be aligned with the pen head positioning groove 414, and the pen head fixing block 441 can be withdrawn along the pen head positioning groove 414, so that the pen head 44 can be taken down.

Through arranging the baffle plate with the pen point through hole 441 in the pen point 44, a staggered mode can be formed among the pen point through hole 441, the pen barrel through hole 412 and the ink barrel through hole 421, so that two times of sealing are formed, the sealing effect during replacing the pen point is further improved, particularly in the process of installing a new pen point, when the pen point 44 is installed on the pen barrel 41, the pen point through hole 441 and the pen barrel through hole 412 are staggered, and ink leakage caused by relative rotation of the pen barrel 41 and the ink barrel 42 and further non-dislocation between the pen barrel through hole 412 and the ink barrel through hole 421 due to rotation of the pen point 44 can be prevented.

As an improvement, as shown in fig. 6b and 7b, the bottom slider 71 is provided with 3 pen core fixing holes 712 for the pen core 4 to pass through and fix the pen core 4, the inner wall of the pen core fixing hole 712 is further formed with an anti-rotation groove 713, the outer wall of the ink barrel 42 is formed with an elongated protrusion 423 (instead of the pen head fixing block 422) arranged along the axial direction of the ink barrel 42, the barrel wall of the pen barrel 41 is formed with a rectangular hole 416 (instead of the ink barrel fixing groove 413) for the elongated protrusion 423 to rotate, the height of the elongated protrusion 423 is greater than the thickness of the barrel wall of the pen barrel 41, and the elongated protrusion 423 extends into the anti-rotation groove 713, so that the ink barrel 42 and the bottom slider 71 do not rotate relatively when the pen barrel 41 rotates. Through the structural design, the pen point 44 can be rotated to drive the pen container 41 to rotate without taking out the pen core 4, the ink container 42 does not rotate, the pen container 41 can be driven to rotate by rotating the pen point 44, and the pen container through hole 412 and the ink container through hole 421 are staggered or aligned, so that the pen point 44 can be replaced without taking out the pen core 4, and the marking pen is convenient to use.

The pen container through hole 412, the ink container through hole 421 and the pen point through hole 441 are preferably two fan-shaped through holes with central angles not greater than 45 degrees (such as 40 degrees, 35 degrees, 30 degrees and the like) which are arranged in central symmetry, and the fan-shaped through holes can enable the area of the through holes to be as large as possible, so that ink can smoothly flow when the through holes are aligned.

It should be noted that the pen tip 44 may be connected to the barrel 41 by other detachable connections, such as a threaded connection.

The pen point of the pen core 4 of the above embodiment can be conveniently replaced, when the pen point is replaced, the ink cartridge 42 and the pen container 41 need to be relatively rotated firstly, so that the ink cartridge through hole 421 and the pen container through hole 412 are dislocated, the bottom of the ink cartridge 42 and the pen container 41 are sealed, the original ink can be prevented from leaking, at this time, the pen point 44 can be taken down and the new pen point 44 can be replaced, after the new pen point 44 is installed, the ink cartridge 42 and the pen container 41 are relatively rotated, and the pen core 4 with the replaced pen point can be continuously used after the ink cartridge through hole 421 and the pen container through hole 412 are aligned. Therefore, the pen core of the invention can prevent ink leakage when the pen point is replaced, can realize disposable use of the pen point 44 and prevent infection when different people use the pen point.

When new ink needs to be filled, the ink cartridge 42 and the pen container 41 need to be relatively rotated first, so that the ink cartridge through hole 421 and the pen container through hole 412 are staggered, the bottom of the ink cartridge 42 and the bottom of the pen container 41 are sealed, the original ink can be prevented from leaking, then the pen point 44 is rotated, the pen point 44 can be taken down when the pen point fixing block 442 is aligned with the pen point positioning groove 414, the bottom end of the ink cartridge 41 is immersed into the ink after the pen point 44 is taken down, or the ink head with a structure similar to that of the pen point 44 is connected, then the ink cartridge 42 and the pen container 41 are relatively rotated to the original position, so that the ink cartridge through hole 421 and the pen container through hole 412 are aligned, the pen holder 43 is pulled, the pen holder 43 is gradually pulled out from the ink cartridge 42, so that the ink can enter the ink cartridge 42, (the pen holder screw hole 432 at the top of the pen holder 43 is matched with the screw thread at one end of the ink pulling rod 96, so that the pen holder 43 can be conveniently pulled out through the ink pulling rod 96), after the ink is filled, the ink cartridge 42 is rotated again, the cartridge through hole 421 and the barrel through hole 412 are dislocated, the pen point 44 is installed, and the cartridge 42 is rotated to align the cartridge through hole 421 and the barrel through hole 412, so that the refill 4 filled with new ink can be used continuously. In the marking pen of the above embodiment, the pen core 4 does not need to be taken out, but only the ink suction rod 96 needs to be extended into the housing 1 from the ink suction through hole 21, and the ink suction rod 96 is pulled by drawing the pen holder 43 in the ink cartridge 42 through the matching of the screw thread at the front end of the ink suction rod 96 and the pen holder screw hole 432, so as to suck ink. In addition, the pen core 4 of the present embodiment can be used for conveniently replacing the pen point, i.e. replacing the needle pen point or the common pen point according to the requirement, thereby greatly expanding the application range.

Three-color ink of red, blue and black is respectively stored in the three pen cores 4 and is used for marking different marks. The nibs 44 are of two types, one is a pointed tip (needle nib) at the front end for penetrating into the skin to make the ink enter the dermis layer of the skin to form a 'tattoo' mark, and the other is a common nib (made of polymer materials such as plastics, fibers and the like) to facilitate drawing a mark on the skin surface or body membrane. The marking pen is internally provided with a plurality of pen cores 4, and different pen cores 4 extend out of the bottom hole 11 for use by rotating the bottom sliding block 71 so as to meet different requirements, such as different pen heads 4 and different colors of ink which can be directly rotated and replaced, so that the marking pen of the embodiment has multiple purposes, and is convenient for medical staff to carry out different marks, for example, the medical staff in different departments can select different colors to be respectively used for CT positioning and verification marks.

In general, only one pen core 4 extends out of the bottom hole 11, as shown in fig. 2a and 3, when the pen core 4 needs to be switched, the dial block 711 is located at a position close to the bottom end of the axial groove 13 in the middle of the three axial grooves 13, the dial block 711 moves towards the circumferential groove 12, the bottom slider 71 also moves towards the top slider 72 (i.e. the top end direction), and the first elastic member 81 is compressed, the pen core 4 originally extending out of the bottom hole 11 is retracted into the housing 1, after the dial block 711 reaches the circumferential groove 12, the pen core 4 is completely retracted into the housing 1, at this time, the dial block 711 is dialed, the dial block 711 moves along the circumferential groove 12, at this time, the bottom slider 71 rotates, when the dial block 711 reaches the position of another axial groove 13, another pen core 4 is aligned with the bottom hole 11, at this time, the force applied to the dial block 711 is released, under the elastic force of the first elastic member 81, the bottom slider 71 naturally moves away from the top slider 72, so that one of the pen cores 4 protrudes from the bottom hole 11 for use, and the other two pen cores 4 are limited by the bottom wall of the housing 1 and remain in the housing 1. The second elastic member 82 is compressed by the bottom wall of the housing 1 or other members, so that the unextended pen core 4 is displaced to a certain extent in the direction of the top slider 72 with respect to the bottom slider 71.

After the pen point sleeve 16 is arranged, the pen point 4 is limited by the pen point sleeve 16, so that the pen point of the pen point 4 is not contacted with the bottom wall, and the pen point is prevented from being damaged.

The marker pen further comprises a bottom slider locking structure, wherein a locking groove 713 is formed in the circumferential direction of the outer wall of the bottom slider 71, a hook 714 is arranged on the bottom slider 71, one end of the hook 714 can protrude out of a hook on the inner wall of the bottom slider 71, the other end of the hook 714 can protrude out of the locking groove 713, when the bottom slider 71 is located at the bottom end, the non-protruding pen core 4 is limited by a pen point sleeve 16, so that the pen core 4 is displaced relative to the direction of the top slider 72 on the bottom slider 71, and the hook of the hook 714 hooks the locking protrusion 417 formed on the outer wall of the pen container 41 to fix the bottom slider 71 and lock the second elastic element 82. An unlocking block (not shown) is formed on the inner wall of the housing 1 and located in the locking groove 713, and when the bottom slider 71 rotates, the unlocking block touches the part of the hook 714 located in the locking groove 713, so that the hook part of the hook 714 is released from being matched with the locking protrusion 417, and the locking of the bottom slider 71 is released. The bottom slider 71 can drive the pen core 4 to slide downwards when sliding downwards, so that the pen point sleeve 16 can support the pen core 4 which does not extend out of the bottom hole and compress the second elastic part 82 of the pen core 4 at the same time, the bottom slider 71 is fixed with the shell 1 through the locking structure, the positions of the bottom slider 71 and the pen core 4 are ensured, meanwhile, the elastic force of the second elastic part 82 is locked, and the counteracting effect on the first elastic part 81 is reduced.

It is worth mentioning that the pen core 4 can be 1, 2, 3, 4 or even more.

The marking pen of this embodiment can be placed in special pen box and form the external member, as shown in fig. 10 and 11, the pen box includes open-top's box 91, sets up the case lid 92 at the box 91 top in the articulated way, is provided with fixing base 94 in the box 91 and divides into top and bottom in the box 91, the three-layer drawer 93 that is used for depositing disposable syringe needle nib 44 is seted up to the side of box 91 bottom, and the headspace is used for placing marking pen, drawing ink rod 96 and a plurality of ordinary nibs 44, and the inside one side of box 91 is provided with 3 ink horn 95 that hold different colours. The bottle mouth part of the ink box 94 is provided with a baffle sheet which is the same as the pen point 44, the baffle sheet is provided with a through hole which has the same structure as the pen point through hole 441, the bottle mouth part is also provided with a hollow suction pipe 97 (the dotted line in the ink box 95 is shown in figure 11) which extends into the bottom of the ink box 95, when the pen core 4 is filled with ink, the pen core 4 with the pen point 44 taken down is connected into the bottle mouth part, and the pen holder 43 is pulled out, so that the ink filling can be completed. Through the cooperation of the pen point through hole 441 and the through hole on the separation blade, a channel can be formed by absorbing ink, and the ink-leakage can be prevented in the process of taking up the pen core 4 after the ink absorption is finished by rotating the pen core 4 to form a closed opening.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. A marking pen, comprising:

the top of the shell (1) is open, the bottom of the shell is provided with a bottom hole (11), and the outer wall of the shell is formed with a plurality of axial grooves (13) which are arranged axially and are parallel to each other and circumferential grooves (12) which are communicated with the tops of the axial grooves (13) and are arranged circumferentially;

the top cover (2) is covered on the top of the shell (1);

the bottom cover (5) is covered at the bottom of the shell (1);

the bottom sliding block (71) is arranged in the shell (1) and is provided with a poking block (711) which extends out of the shell (1) and can move along the axial groove (13) and the circumferential groove (12) under the action of external force, and a plurality of pen cores are arranged on the bottom sliding block (71);

the cartridge includes: the pen container (41) with an opening at the top end, a pen point (44) detachably arranged at the front end of the pen container (41), an ink container (42) with an opening at the top end and extending into the pen container (41), and a pen holder (43) extending into the ink container (42);

a pen barrel through hole (412) is formed in the bottom of the pen barrel (41), a ink barrel through hole (421) is formed in the bottom of the ink barrel (42), and when the ink barrel (42) rotates in the pen barrel (41), the pen barrel through hole (412) and the ink barrel through hole (421) can be aligned to form an ink outlet hole or staggered to form a closed opening;

the refill is sleeved with a second elastic piece (82) so that the refill can be elastically adjusted relative to the position of the bottom sliding block (71) in the axial direction of the shell (1);

when the poking block (711) is poked to move in the axial groove (13), the bottom sliding block (71) and the pen cores can do linear motion along the axial direction of the shell (1), so that the pen cores aligned with the bottom holes (11) extend out of the bottom holes (11) or retract into the bottom holes (11), and when the poking block (711) is poked to move in the circumferential groove (12), the bottom sliding block (71) can be driven to rotate so that different pen cores are aligned with the bottom holes (11).

2. The marking pen of claim 1,

the outer wall of the pen barrel (41) is formed with a pen point positioning groove (414) which is axially arranged along the pen barrel (41) and extends to the bottom of the pen barrel (41), and a pen point fixing groove (415) communicated with the pen point positioning groove (414);

and a pen point fixing block (442) which can enter or exit the pen point fixing groove (415) along the pen point positioning groove (414) is formed on the inner wall of the pen point (44).

3. The marking pen of claim 1,

a baffle plate with a pen point through hole (441) is formed in the pen point (44), and when the pen point (44) is rotated by external force, the pen point through hole (441) and the pen container through hole (412) are aligned to form an ink outlet or staggered to form a closed opening.

4. A marking pen according to claim 3, characterized in that the barrel through hole (412), the barrel through hole (421) and the nib through hole (441) are two fan-shaped through holes with a central angle not larger than 45 ° arranged with central symmetry.

5. The marking pen according to any one of claims 1 to 4, wherein a sliding groove (14) is formed in a position, close to the top, on the outer wall of the casing (1), a top slider (72) is further arranged on the casing (1), the top slider (72) is further provided with a sliding piece (3) which is installed outside the casing (1) and can move along the sliding groove (14) under the action of external force, the top slider (72) can move linearly along the axial direction of the casing (1) after the sliding piece (3) is pulled, a first elastic piece (81) is arranged between the top slider (72) and the bottom slider (71), and an ink drawing through hole (21) which corresponds to the bottom hole (11) is formed in the top cover (2).

6. A pen as claimed in claim 5 wherein the inner wall of the base of the housing (1) is formed with a nib sleeve (16) at a location corresponding to a refill which is not aligned with the base aperture (11), the nib sleeve (16) bearing against a refill which is not required to be used, leaving the refill within the housing.

7. The marking pen according to claim 6, wherein the bottom slider (71) is provided with a plurality of pen core fixing holes (712) for the pen cores (4) to pass through and fix the pen cores (4), the inner walls of the pen core fixing holes (712) are further formed with anti-rotation grooves (713), the outer wall of the ink barrel (42) is formed with elongated protrusions (423) arranged along the axial direction of the ink barrel (42), the barrel wall of the pen barrel (41) is formed with rectangular holes (416) for the elongated protrusions (423) to rotate, the height of the elongated protrusions (423) is larger than the thickness of the barrel wall of the pen barrel (41), and the elongated protrusions (423) extend into the anti-rotation grooves (713) so that the ink barrel (42) and the bottom slider (71) do not rotate relatively when the pen barrel (41) is rotated.

8. The marking pen of claim 7,

slip sheet (3) are located the inside partial molding of shell (1) have with bottom hole (11) set up relatively and towards the protruding (31) of slip sheet that bottom hole (11) direction extended uses external force to promote during slip sheet (3), top slider (72) can be to bottom (5) direction motion, the slip sheet protruding (31) can with pen-holder (43) contact to promote pen-holder (43) to stretch into in ink cartridge (42).

9. Marking pen according to one of the claims 6 to 8,

the shell (1) is also sleeved with an anti-skid sleeve (6).

10. A marker pen kit comprising: a pen housing and a marker pen according to any one of claims 1 to 9 disposed within the pen housing;

the pen box comprises a box body (91) with an opening at the top, a box cover (92) is arranged at the top of the box body (91) in an articulated mode, a fixing seat (94) is arranged in the box body (91) to divide the interior of the box body (91) into a top part and a bottom part, a three-layer drawer (93) used for storing disposable needle pen points is arranged on the side face of the bottom of the box body (91), a marking pen, an ink pumping rod (96) and a plurality of common pen points are placed at the top of the box body (91), and an ink box (95) used for containing ink with different colors is arranged on one side inside the box body (91).

11. The marker pen kit according to claim 10, wherein a stopper having a through hole is formed in a mouth portion of the ink cartridge (95), and a suction pipe (97) is provided to pass through a bottom of the ink cartridge (95) in the mouth portion of the ink cartridge (95).