WO2020114451A1 - 具备防干燥装置的书写工具 - Google Patents

具备防干燥装置的书写工具 Download PDF

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Publication number
WO2020114451A1
WO2020114451A1 PCT/CN2019/123274 CN2019123274W WO2020114451A1 WO 2020114451 A1 WO2020114451 A1 WO 2020114451A1 CN 2019123274 W CN2019123274 W CN 2019123274W WO 2020114451 A1 WO2020114451 A1 WO 2020114451A1
Authority
WO
WIPO (PCT)
Prior art keywords
pen
closing
protrusion
lifting
drying device
Prior art date
Application number
PCT/CN2019/123274
Other languages
English (en)
French (fr)
Inventor
王元鸿
鱼命赫
Original Assignee
青岛点石文具用品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛点石文具用品有限公司 filed Critical 青岛点石文具用品有限公司
Priority to US17/257,511 priority Critical patent/US11584152B2/en
Priority to EP19893614.8A priority patent/EP3892475A4/en
Priority to JP2020573420A priority patent/JP7045492B2/ja
Publication of WO2020114451A1 publication Critical patent/WO2020114451A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
    • B43K23/08—Protecting means, e.g. caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/02—Ink reservoirs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/16—Pens with ink reservoirs in holders, e.g. fountain-pens with retractable nibs
    • B43K5/17—Pens with ink reservoirs in holders, e.g. fountain-pens with retractable nibs with closing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
    • B43K23/08—Protecting means, e.g. caps
    • B43K23/12—Protecting means, e.g. caps for pens
    • B43K23/128—Protecting means, e.g. caps for pens with spring means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
    • B43K24/084—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons with saw-like or analogous cams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
    • B43K24/088—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons with spreading spring means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K25/00—Attaching writing implements to wearing apparel or objects involving constructional changes of the implements
    • B43K25/02—Clips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/02—Pens with writing-points other than nibs or balls with writing-points comprising fibres, felt, or similar porous or capillary material
    • B43K8/028—Movable closure or gate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K8/00—Pens with writing-points other than nibs or balls
    • B43K8/24—Pens with writing-points other than nibs or balls characterised by the means for retracting writing-points

Definitions

  • the invention is a writing implement equipped with a dry-proof device to prevent the tip of the pen from drying out, in particular, to prevent the water-based or volatile ink in the fluorescent or marking pen having the function of pressing out or retracting from drying out.
  • a writing implement provided with an anti-drying device that turns inside the lower part of the pen barrel to close the internal space.
  • Korean Patent 10-0556569 discloses a writing instrument with a structure that prevents drying out, that is, the inside of the pen holder is provided to prevent the inflow of external air, and it is rotated on one side and placed on the inner side of the lower end of the pen holder to isolate the pen tip from being exposed to the air Anti-dry structure.
  • the traditional anti-drying writing instrument rotates the spare part on the inner side of the pen barrel to close the lower end to close the entrance.
  • the rotary spare part When the rotary spare part is operated, it cannot rotate smoothly due to friction, and the spare part is worn due to friction or frequent operation causes Damaged spare parts bring about a low closing function, so there is a problem that the ink cannot be dried.
  • the ink In order to prevent the ink from drying out, the ink is prevented from flowing in along the nib side of the nib tube body with the nib in the ink cartridge, and the rubber ring in contact with the nib tube body prevents the ink from drying out, but the elevating ink cartridge and the rubber ring rub against each other As a result, the pen tip does not move smoothly.
  • the invention mainly solves the above-mentioned problems existing in the traditional writing tools with anti-drying function.
  • the rotating sealing cap and the sealing pad which form the anti-drying device are closely attached to each other, and the rotating closing cap rotates the switch when the pen tip is extended or retracted.
  • the purpose is to prevent the friction of the rotating closure cap during rotation, so that the process of opening and closing the pen barrel is soft and smooth, and can prevent the degradation of the airtight performance caused by friction and wear.
  • the ink tube can descend along the lifting groove and apply pressure to the elastic portion.
  • the elastic portion expands and contracts in the switch sleeve to prevent the elastic portion from expanding outward and resetting, so that the switch sleeve does not rise to maintain the hooked state , So that the opening and closing of the pen tip is smoother.
  • the present invention provides a writing instrument provided with an anti-drying device, including a pen holder, a pen tip, an ink tube and a pressing rod provided in the pen holder, the pen tip being connected to the lower part of the ink tube ,
  • the pressing rod is located at the upper part of the ink tube and used to drive the ink tube to move in the pen barrel, and is characterized in that:
  • the inner wall of the lower end of the pen holder is provided with a limit protrusion, a mounting groove and a spring mounting surface, the limit protrusion is located above the spring mounting surface, and the mounting groove is located between the limit protrusion and the Between spring mounting surfaces;
  • the outer wall of the ink tube is provided with a fastening lifting protrusion and an anti-seizure contact surface, the anti-seizure contact surface is located above the fastening elevating protrusion;
  • the writing instrument provided with an anti-drying device further includes an anti-drying device;
  • the anti-drying device includes a switch sleeve, a lifting cap, a tap spring, a rotating closing cap, a closing pad, and a supporting spring;
  • the switch sleeve is inserted into the pen holder, and the upper part of the switch sleeve is respectively provided with elastic parts on both sides, and the switch sleeve is also provided with an elevating groove extending to the elastic part.
  • the outer side of the upper end is provided with a pressure-proof protrusion that cooperates with the limit protrusion
  • the inner side of the upper end of the elastic portion is provided with a locking protrusion that cooperates with the anti-disengagement contact surface
  • the lower end side portion of the switch sleeve is provided with Turning slot
  • the lifting cap is inserted into the switch sleeve, the upper end of the lifting cap is provided with supporting protrusions on both sides, the lower end of the lifting cap is provided with rotating shafts respectively, and the fastening lifting protrusion and the
  • the support protrusions are arranged up and down and inserted into the lifting grooves on the corresponding sides, and the support protrusions are also inserted into the installation grooves;
  • the tapping spring is inserted in the switch sleeve and is located between the supporting lifting cap and the ink tube;
  • the rotating closing cap has a closing surface and rotating support parts distributed on both sides of the closing surface, the rotating support part is provided with a shaft hole and a rotation operation protrusion, and the rotation operation protrusion is eccentrically provided on the shaft On one side of the hole, the rotation shaft is inserted into the corresponding shaft hole, and the rotation operation protrusion is inserted into the rotation groove;
  • the closing pad is provided with an access hole for the pen tip to enter and exit, the closing pad is located below the switch sleeve, the support spring is provided between the closing pad and the spring mounting surface, the rotation The closing cap is used for turning to open and close the access hole.
  • the pen clip is inserted into the upper end of the pen barrel, the pressing rod is inserted into the pen clip and connected with the ink tube, and the inner wall of the pen barrel is provided with a sealing ring.
  • the sealing ring contacts the outer wall of the pen holder.
  • the outer wall of the pressing rod is provided with an annular rubber groove, and a sealing rubber ring is provided in the annular rubber groove, and the sealing rubber ring is located between the pen holder and the pressing rod.
  • a spring insertion slot is provided at the bottom of the closing pad, and the upper end of the support spring is inserted into the spring insertion slot.
  • the inner wall of the pen barrel is also provided with a plurality of rotating protrusions distributed around the center line of the pen barrel;
  • the outer tube wall of the ink tube is provided with a guide protrusion and a limit step surface, the limit position The step surface is located above the guide protrusion;
  • the writing instrument provided with an anti-drying device further includes a tapping sleeve, the inner wall of the tapping sleeve is provided with lifting and tapping teeth distributed at equal intervals around its axis, and the lower end of the tapping sleeve is provided with ring teeth;
  • the lifting and lowering tooth cooperates with the guide protrusion, and the ring-shaped tooth is caught on the rotating protrusion.
  • the closing surface of the rotating closure cap abuts against the closure pad and seals the access hole; when the pen tip extends to the pen barrel When outside, the closing surface of the rotating closing cap rotates to one side of the closing pad to open the access hole.
  • the advantages and positive effects of the present invention are: composed of a pen barrel, a pressing rod at the upper end of the pen barrel, an ink tube inserted into the pen barrel to move up and down with the pressing rod, and a drying prevention device that prevents the ink of the pen tip from drying out.
  • the lower part of the ink tube can be inserted into a hollow structure of the switch sleeve, a lifting cap that can be raised and lowered inside the switch sleeve, a rotating closing cap combined with the lower part of the lifting cap rotating along the axis direction, and inserted into the lower part of the inner side of the pen barrel and tightly attached to the rotating closing cap
  • the pen tip can pass through the formed closing pad and a supporting spring elastically supporting the closing pad.
  • the sealing cap When the sealing pad is pressurized, the sealing cap is rotated to move relative to the switch sleeve.
  • a pressure-proof protrusion is formed inside the elastic part
  • Protruding locking protrusions are formed from the outside and the outside.
  • the sealing pad moves up and down at a certain interval below the inside of the pen barrel.
  • the inlet and outlet holes on the pad for entering and exiting the pen tip close the lower part of the pen barrel by turning the closing cap to one side, combined with the upper part of the pen barrel.
  • inlet and outlet holes are opened and closed by driving the rotation of the closing cap.
  • the closing pad When rotating, the closing pad is spaced from the rotating closing cap by the support spring, so no friction occurs, and the operation of opening and closing the inlet and outlet is more gentle and smooth, which can prevent friction. Causes damage between spare parts.
  • the elastic portions on both sides of the switch sleeve are extended outward by the ink tube during the pen tip down operation
  • the locking protrusion of the elastic part will be stuck in the upper part of the limit protrusion inside the pen barrel, and the closing pad under the downward pressure cannot rely on the elastic force of the support spring to rise, stably maintaining the rotating sealing cap and the closing pad in an isolated state.
  • Fig. 1 is an exploded perspective view of an example of the present invention.
  • Fig. 2 is an exploded cross-sectional view of an example of the present invention.
  • Figure 3 is a perspective view of an example of the present invention.
  • Fig. 4 is a sectional view of the operating state in the example of the present invention.
  • Fig. 5 is a perspective view showing a state of operation in conjunction with tapping of an ink tube in an example of the present invention.
  • Fig. 6 shows the tightening sequence of the anti-drying device in the example of the present invention.
  • Fig. 7 is a perspective view showing a state in which the lifting cap and the rotary closing cap are combined in the example of the present invention.
  • FIG. 8 is a perspective view showing the main components of the anti-drying device in the example of the present invention.
  • FIG. 9 is a cross-sectional view showing the lowered state of the ink tube in the switch sleeve in the example of this method.
  • Fig. 10 is a sectional view showing the operation sequence in the example of the present invention.
  • FIG. 11 is an enlarged cross-sectional view enlarging the operation state of the ink tube and the switch sleeve of part A of FIG. 10.
  • Fig. 12 is a cross-sectional view showing the operation sequence of turning the closing cap and the closing pad in the example of the present invention.
  • FIG 13 is an enlarged view showing an example of the operation of rotating the closing cap and the closing pad in the example of the present invention.
  • FIG. 14 is a cross-sectional view of using another example to incorporate a sealing rubber ring on a pressing rod.
  • the present invention is composed of a pen holder (110), a pen holder (120) provided on the upper end of the pen holder (110) and arranged on the pen holder (110) in a threaded or clamping manner, and inserted into the pen holder (110) Internal pressing rod (150), pen tip (1), ink tube (130), and anti-drying device (200) for closing the front end of the pen rod (110) to prevent the ink from drying out.
  • the ink tube (130) stores an ink filter (2) for supplying ink to the pen tip (1) provided in the core coupling tube (135).
  • the upper end of the inner side of the pen holder (110) is provided with a sealing ring (111) which contacts the lower periphery of the pen holder (120) to close the internal connection part, and the central part of the pen holder (110) is provided with a rotating protrusion which cooperates with the tapping sleeve (140) (112), the upper part of the rotating protrusion (112) is provided with an inclined surface, the rotating protrusion (112) is extended to the lower part by a certain length, and the lower part of the rotating protrusion (112) is also provided with a lifting cap (220) for insertion
  • the mounting groove (113) of the formed supporting protrusion (221) is provided between the two adjacent rotating protrusions (112) on the wall surface of the pen holder (110) for preventing the switch sleeve (210) from descending Ascending limit protrusions (114), the lower part of the inner side of the pen holder (110) is provided with a spring mounting surface (115) that supports the closing pad (240) and
  • the upper part of the spring mounting surface (115) is provided with an operation space (116) for inserting the closing pad (240) to be raised and lowered by one stroke under the support of the support spring (244).
  • the pen holder (120) combined with the upper end of the pen holder (110) is inserted into the sealing ring (111) to prevent a gap from occurring and plays a role of closing the upper part.
  • a sealing rubber ring (160) is provided inside the pen holder (120), and the sealing rubber ring (160) lifts the pressing lever (136) of the upper shielding surface (136) of the ink tube (130) and the open hole of the pen holder (120) 150) Sealed to prevent outside air from flowing into the closed barrel (110) through the gap.
  • An ink tube (130) equipped with a pen tip (1) is inserted into the pen holder (110), a tapping sleeve (140) provided on the upper part of the ink tube (130), and a dry-proof provided on the lower part of the ink tube (130) Device (200).
  • the upper part of the ink tube (130) is formed with a limit step surface (131) connected with the tapping sleeve (140), and the outer middle part of the ink tube (130) is formed on both sides for guiding the tapping sleeve (140) )
  • the sliding guide protrusion (132), the ink tube (130) is formed on the lower side of the guide protrusion (132) to be inserted into the lifting groove (212) formed on both sides of the switch sleeve (210) through the fastening lifting protrusion (133), tighten the lifting protrusion (133) to form an anti-disengagement contact surface (134), the anti-disengagement contact surface (134) cooperates with the anti-pressure projection (211a) of the switch sleeve (210), and After the elastic parts (211) on both sides of the switch sleeve (210) are restored to their original positions and unfolded, the size between the two elastic parts (211) is larger than the size of the anti-disengagement surface (134) on the
  • the ink tube (130) and the pressing rod (150) may be connected together in a fixed manner such as screw connection.
  • the tapping sleeve (140) is formed with equally spaced lifting tapping teeth (141), and the lower end of the tapping sleeve (140) is formed with ring teeth (142) with a diameter larger than that of the lifting tapping teeth (141). The diameter of the circle formed.
  • the anti-drying device (200) consists of a switch sleeve (210) inserted into the lower part of the ink tube (130), a lifting cap (220) movable up and down in the switch sleeve (210), and an elastic support on the upper part of the lifting cap (220)
  • the sealing pad (240) exposing the pen tip (1) and the supporting spring (244) elastically supporting the sealing pad (240) are composed.
  • the lower part of the ink tube (130) is inserted into the switch sleeve (210), and the two sides of the upper end of the switch sleeve (210) are formed with elastic portions (211) cut and separated by a certain length.
  • the switch sleeve (210) is provided with two elastic extensions
  • a lifting groove (212) is formed through the portion (211) through a certain length, and the lower part of the switch sleeve (210) is formed with a rotating groove (213) which is open on one side and used for installing a rotating closing cap (230).
  • the rotation operation protrusion (234) is installed in the rotation groove (213), and the rotation groove (213) forms an access opening (241) for pulling the rotation operation protrusion (234) to rotate to open the closing pad (240) and open the operation surface (241) 213a), the rotation groove (213) also forms a closed operation surface (213b) for pushing the rotation operation protrusion (234) to rotate to close the access hole (241).
  • An anti-pressure projection (211a) is formed on the inner side of the upper end of the elastic portion (211), and a locking projection (211b) is formed on the outer side of the upper end of the elastic portion (211) for cooperating with the limiting projection (114) on the inner side of the pen holder (110) .
  • the tapping spring (214) supports the ink tube (130) to recover its elasticity and complete the tapping operation.
  • the lifting cap (220) is inserted downwardly and combined from the upper end of the switch sleeve (210), and a supporting protrusion (221) is formed on both sides of the upper part of the lifting cap (220).
  • the supporting protrusion (221) is inserted into the lifting groove (212), and the supporting protrusion
  • the part protruding from (221) protruding from the lifting groove (212) is also inserted into the mounting groove (113), and the lower sides of the lifting cap (220) form a rotating shaft (222), and the rotating shaft (222) is inserted into the rotating closing cap (230).
  • the rotating closing cap (230) is located at the lower part of the switch sleeve (210), and the rotating operation protrusions (234) on both sides of the rotating closing cap (230) are inserted into the rotating groove (213), and the lifting cap (220) is inserted with the upper part ) Connect to each other.
  • the rotating closing cap (230) is closely attached to the upper part of the closing pad (24), the rotating closing cap (230) has a spherical closing surface (231) for closing the lower part of the pen holder (110), and the closing surface (231)
  • the rotation support portion (232) protruding upward on both sides is composed of a shaft hole (233) cut into one side for inserting the rotation shaft (222) and a rotation groove (213) in the center of the rotation support portion (232)
  • the upper open operation surface (213a) and the lower closed operation surface (213b), and a rotation operation protrusion (234) are also formed on the rotation support portion (232).
  • the rotation operation protrusion (234) is eccentrically located above the shaft hole (233), and the switch sleeve (210) can move up and down relative to the center of the shaft hole (233) to drive the rotation closing cap (230) to complete the rotation operation.
  • the closing pad (240) is inserted from the open upper part of the pen holder (110), the center of the closing pad (240) penetrates to form an access hole (241) for entering and exiting the pen tip, and the outer side of the closing pad (240) is formed in contact with the inner wall of the pen holder (110)
  • the contact ring (242) and the closing pad (240) are provided with a spring insertion slot (234) at the lower part, and a supporting spring (240) for elastically supporting the closing pad (240) is inserted into the spring insertion slot (234) to
  • the support spring (240) is prevented from falling off, and the closing pad (240) and the rotating closing cap (230) are elastically adhered by the support spring (244).
  • annular rubber groove (150a) is formed under the pressing rod (150), and a fastening sealing rubber ring (160) is formed on the annular rubber groove (150a), and the sealing rubber ring (160) and the inner wall of the pen holder (120) Close air circulation after sliding contact.
  • An annular rubber groove (150a) of the pressing rod (150) is provided with a sealing rubber ring (160) with an O-shaped structure.
  • the invention is composed of a pen rod (110), a pressing rod (150) at the upper end of the pen rod (110), and a drying prevention device (200) inserted into the pen rod (110) to prevent the ink from drying out.
  • the pressing rod at the upper part of the pen rod (150) (150) Operate to drive the anti-drying device (200) to open and close the pen tip (1) into and out of the access hole (241) of the closing pad (240), and to enter and exit the closing pad (240) through the anti-drying device (200) when the pen is not in use
  • the hole (241) is closed to prevent the ink from drying out.
  • the pressing lever (150) When the pressing lever (150) is pressed, the pressing lever (150) drives the ink tube (130) to descend together, and the limit step surface (131) abuts on the lower tapping sleeve (140) to prevent the disengagement of the contact surface ( 134) Push the anti-pressure projection (211a) protruding from the upper end of the inner wall of the switch sleeve (210) down.
  • the lowered switch sleeve (210) applies pressure to the closing pad (240) elastically supported by the support spring (244) at the lower part, and press a certain amount After the distance, the rotary closure cap (230) and the closure pad (240) are separated, and the open operation surface (213a) of the rotary groove (213) will push the rotary operation protrusion (234) outside the rotary support part (232), so that Turn the closing operation of the closing cap (230), and then open the inlet and outlet holes (24) of the closing pad (240), so that the core (1) of the ink tube (130) on the core binding tube (135) extends downwards toward the pen barrel (110) Out.
  • the limit step surface (131) reaches the rotating protrusion (112) of the ring tooth (142) at the lower end of the tapping sleeve (140), it rotates downward at a certain angle, and the rotating protrusion (112) is located on the ring tooth On the edge of (142), the operation of positioning the tapping sleeve (140), the pen tip (1) attached to the ink tube (130) protrudes toward the outside of the pen holder (110).
  • the upper open operation surface (213a) of the rotating groove (213) formed at the lower end of the switch sleeve (210) will press Rotate the operating protrusion (234), turn the closing cap (230) and turn it sideways with the rotating shaft (222) of the lifting cap (220) as the center to open the closing pad (240) access hole (241), which is combined with the ink
  • the nib (1) on the tube (130) extends.
  • the opening operation surface (213a) above the turning operation protrusion (234) located in the turning groove (213) is moved by the interval A and the switch sleeve (210) is moved down to the interval a'above the closing pad (240)
  • the difference in the moving distance is the same as the interval height of the interval a” when the closing cap (230) is away from the closing pad (240), and the rotating closing cap (230) rotates to open the inlet and outlet holes (241) of the closing pad (240), both There is no friction between them.
  • the switch sleeve (210) is pressurized by the ink tube (130) to continue to move down, the switch sleeve (210) continues to press the closing pad (240) to move down, and when the closing pad (240) moves down to the bottom At this time, the anti-pressure projection (211a) and the locking projection (211b) of the switch sleeve (210) are located under the limit projection (114) inside the pen holder (110).
  • the switch sleeve (210) contacts the closing pad (240) and moves down to the bottom, the anti-disengagement contact surface (134) is separated from the anti-pressure projection (211a), and the elastic portion (211) moves to the limit projection (114) ) The space below is squeezed and spread.
  • the pressure-proof protrusion (211a) is located above the anti-disengagement contact surface (134), and when the elastic portion (211) is stretched outward, the elastic portion (211) is convex outside
  • the locking protrusion (211b) abuts the lower part of the limit protrusion (114) of the pen holder (110), so that the switch sleeve (210) presses on the closing pad (240) to maintain the rotation of the closing cap (230) and The closing pad (240) is in a separated state.
  • the elastic force of the tap spring (214) inside the switch sleeve (210) will push the ink tube (130) to move up, and the fastening of the ink tube (130) to move up and down
  • the protrusion (133) moves up and down the lifting groove (212) to the upper end of the switch sleeve (210).
  • the closing pad (240) moves up a certain distance in the operating space (116), and makes the closing surface (231) of the rotating closing cap (230) cling to the closing pad (240)
  • the support spring (244) applies pressure to the closing pad (240), so that the inlet and outlet holes (241) of the closing pad (240) are closed.
  • the upper part of the pen holder (110) contacts the sealing ring (111) and the outer lower part of the pen holder (120) forms a seal.
  • the penetrating pen holder (120) is sealed inside by a sealing rubber ring (110) to prevent air in Closed.
  • the hole formed by the sealing rubber ring (160) is larger than the outer diameter of the pressing rod (150), so the sealing rubber ring (160) does not rub against the pressing rod (150), and the tapping operation is gentle and smooth.
  • the lower part of the pressing rod (150) forms a sealing rubber ring groove (150a) for installing a sealing rubber ring (160), and a sealing rubber ring (160) is provided in the sealing rubber ring groove (150a) ), when the sealing rubber ring (160) is in contact with the open inner wall of the pen holder, when the pen tip (1) is extended, a gap is created between the pen holder (120) and the downward pressing rod (150); while the pen tip (1) In the retracted state, the upward pressing rod (150) is sealingly connected to the inner side wall of the pen holder (120) through an O-ring sealing rubber ring (160).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Pens And Brushes (AREA)
  • Clips For Writing Implements (AREA)

Abstract

一种具备防干燥装置的书写工具，包括笔杆（110）、以及设置在笔杆（110）中的笔尖（1）、墨水管（130）和按压杆（150）。具备防干燥装置的书写工具还包括防干装置（200），防干装置（200）包括开关套（210）、升降帽（220）、叩动弹簧（214）、转动封闭帽（230）、封闭垫（240）和支撑弹簧（244）。开关套（210）插在笔杆（110）中，开关套（210）的上端两侧分别设置有弹性部（211），开关套（210）上还设置有延伸分布到弹性部（211）上的升降槽（212），开关套（210）的下端侧部设置有转动槽（213）；升降帽（220）插入到开关套（210）中，升降帽（220）的上端两侧分别设置有支撑凸起（221），转动封闭帽（230）用于转动以开关进出孔（241）。

Description

具备防干燥装置的书写工具 技术领域
本发明是一种具备防干装置以防止笔尖变干的书写工具，尤其是，为了防止具有按压伸出或回缩功能的荧光或马克笔中的水性或者挥发性墨水变干。设有在笔杆下部内侧转动以封闭内部空间的防干装置的书写工具。
 背景技术
通常组成按动操作的荧光及使用马克笔种类水性或者挥发性墨水的书写工具，反复按动其上端按动部，随着按动向外侧按出笔尖及向内侧放入笔尖。
为了防止墨水变干，韩国专利10-0556569公开了一种具备防止变干结构的书写工具，即笔杆内部设有防止外部空气流入，在一侧旋转设置在笔杆下端内侧隔离笔尖流露在空气中的防干结构。
但是，传统的防干结构书写工具为了开闭笔尖进出入口，转动备件在笔杆内侧紧贴在下端封闭入口，当转动备件操作时由于摩擦力无法顺畅转动，因摩擦导致的备件磨损或者频繁操作导致备件受损带来封闭功能低下，故存在无法防止墨水变干问题。
为了防止墨水变干，在墨盒中沿结合笔尖的笔尖管体笔尖侧防止空气被流入，与笔尖管体相接触的结合橡胶环，以此防止墨水变干，但是升降的墨盒与橡胶环相互摩擦导致笔尖进出操作不顺畅。
 技术问题
本发明主要解决传统具有防干功能的书写工具所存在的上述问题，组成防干装置的转动封闭帽与封闭垫紧贴在一起，转动封闭帽在笔尖伸出或回缩时转动开关。目的是防止转动封闭帽在转动过程中产生摩擦，以使得开关笔杆开口的过程轻柔顺畅，可预防因摩擦磨损导致的气密性能的下降。
本发明的另一目的是，墨水管可沿着升降槽下降并对弹性部施加压力，弹性部在开关套中内伸缩，防止弹性部向外侧展开而复位，使得开关套不上升维持挂接状态，以致进出笔尖的开闭操作更加顺畅。
为了封闭笔杆上部，在笔杆升降的墨水管与笔杆之间不会产生摩擦，笔尖的进出操作更加轻柔。
 技术解决方案
为了达到本发明的目的，本发明提供一种具备防干燥装置的书写工具，包括笔杆、以及设置在所述笔杆中的笔尖、墨水管和按压杆，所述笔尖连接在所述墨水管的下部，所述按压杆位于所述墨水管的上部并用于驱动所述墨水管在所述笔杆中移动，其特征在于：
所述笔杆下端部的内壁上设置有限位凸起、安装槽和弹簧安装面，所述限位凸起位于所述弹簧安装面的上方，所述安装槽位于所述限位凸起和所述弹簧安装面之间；
所述墨水管的外壁上设置有紧固升降凸起和防脱卡接面，所述防脱卡接面位于所述紧固升降凸起的上方；
所述具备防干燥装置的书写工具还包括防干装置；所述防干装置包括开关套、升降帽、叩动弹簧、转动封闭帽、封闭垫和支撑弹簧；
所述开关套插在所述笔杆中，所述开关套的上端两侧分别设置有弹性部，所述开关套上还设置有延伸分布到所述弹性部上的升降槽，所述弹性部的上端外侧设有与所述限位凸起配合防压凸起，所述弹性部的上端内侧设置有与所述防脱卡接面配合的锁定凸起，所述开关套的下端侧部设置有转动槽；
所述升降帽插入到所述开关套中，所述升降帽的上端两侧分别设置有支撑凸起，所述升降帽的下端两侧分别设置有转动轴，所述紧固升降凸起和所述支撑凸起上下布置并插在对应侧的所述升降槽中，所述支撑凸起还插在所述安装槽中；
所述叩动弹簧插在所述开关套中并位于所述支撑升降帽和所述墨水管之间；
所述转动封闭帽具有封闭面和分布在所述封闭面两侧的转动支撑部，所述转动支撑部上设置有轴孔和转动操作凸起，所述转动操作凸起偏心设置在所述轴孔的一侧，所述转动轴插在对应的所述轴孔中，所述转动操作凸起插在所述转动槽中；
所述封闭垫设置有用于供所述笔尖进出的进出孔，所述封闭垫位于所述开关套的下方，所述支撑弹簧设置在所述封闭垫与所述弹簧安装面之间，所述转动封闭帽用于转动以开关所述进出孔。
进一步的，还包括笔夹；所述笔夹插在所述笔杆的上端部，所述按压杆插在所述笔夹中并与所述墨水管连接，所述笔杆内壁设置有密封环，所述密封环接触在所述笔夹的外壁。
进一步的，所述按压杆的外壁设置有环形橡胶槽，所述环形橡胶槽中设置有密封橡胶环，所述密封橡胶环位于所述笔夹与所述按压杆之间。
进一步的，所述封闭垫的底部设置有弹簧插接槽，所述支撑弹簧上端部插在所述弹簧插接槽中。
进一步的，所述笔杆的内壁中还设置有多条绕所述笔杆中心线分布的旋转凸起；所述墨水管的外管壁上设置有导向凸起和限位台阶面，所述限位台阶面位于所述导向凸起的上方；
所述具备防干燥装置的书写工具还包括叩动套筒，所述叩动套筒的内壁设置有绕其轴线等间距分布的升降叩动齿，所述叩动套筒下端设置有环形齿；所述升降叩动齿与所述导向凸起配合，所述环形齿卡在所述旋转凸起上。
进一步的，当所述笔尖回缩至所述笔杆内时，所述转动封闭帽的所述封闭面贴靠在所述封闭垫并密封所述进出孔；当所述笔尖伸出至所述笔杆外时，所述转动封闭帽的所述封闭面转动到所述封闭垫的一侧以打开所述进出孔。
 有益效果
本发明的优点和积极效果是：由笔杆、笔杆上端的按压杆、插入至笔杆内部随按压杆升降的墨水管、以及防止笔尖的墨水变干的防干装置组成，所述防干装置由位于墨水管下部并能够插入中空结构的开关套、在开关套内部可升降的升降帽、结合在升降帽下部沿着轴方向旋转的转动封闭帽及插入至笔杆内侧下部并与转动封闭帽紧贴使笔尖能够进出地贯通形成的封闭垫、弹性支撑封闭垫的支撑弹簧组成。
对所述封闭垫加压时，转动封闭帽相对于与开关套移动，为使其保持上部的弹性部不被墨水管挤压变形向外侧撑开，则在弹性部内侧形成突起的防压凸起和外侧形成突起的锁定凸起。
封闭垫在笔杆内侧下面按一定间隔升降，封闭垫上用于进出笔尖的进出孔通过转动封闭帽向一侧转动来封闭笔杆下部，结合在笔杆上部在笔夹内侧上面设有密封橡胶环，使墨水管上端部与密封橡胶环相互接触，封闭笔杆内部的以防止内外空气流通，以此防止墨水变干。
而且通过驱动转动封闭帽转动来开关进出孔，当转动时，通过支撑弹簧将封闭垫与转动封闭帽间隔开，故不会产生摩擦，致开闭进出口的操作更加轻柔顺畅，可以防止因摩擦导致的备件之间的损伤。
随着按压杆的按动笔尖，为使笔尖跟随墨水管和紧固在墨水管下部的开关套在笔杆内部升降，在笔尖下降操作中通过墨水管将开关套两侧的弹性部向外侧撑开，弹性部的锁定凸起将卡在在笔杆内部限位凸起的上部，而受下压力的封闭垫无法依靠支撑弹簧的弹性力上升，稳定维持转动密封帽和封闭垫处于隔离状态。
另外，在墨水管和笔杆之间无接触部分，以防止空气经由笔杆上部流入 ，使得笔尖的进出操作更加轻柔。
 附图说明
图1是本发明实例中分解斜视图。
图2是本发明实例中分解剖面图。
图3是本发明实例中斜视图。
图4是本发明实例中操作状态剖面图。
图5是显示本发明实例中结合墨水管叩动操作状态的斜视图。
图6是显示本发明实例中防干装置的紧固顺序。
图7是显示本发明实例中升降帽和转动封闭帽相结合状态的斜视图。
图8是显示本发明实例中防干装置主要组成的斜视图。
图9是显示本法实例中开关套中墨水管下降状态的剖面图。
图10是显示本发明实例中操作顺序剖面图。
图11是扩大图10的A部分墨水管和开关套操作状态的扩大剖面图。
图12是显示本发明实例中转动封闭帽和封闭垫操作顺序的剖面图。
图13是显示本发明实例中转动封闭帽和封闭垫操作实例的扩大图。
图14是使用其他实例在按压杆上结合密封橡胶环的剖面图。
附图标记：
110：笔杆、111：密封环、112：旋转凸起、113：安装槽、114：限位凸起、115：弹簧安装面、116：操作空间、120：笔夹、130：墨水管、131：限位台阶面、132：导向凸起、133：紧固升降凸起、134：防脱卡接面、135：芯结合管、136：遮蔽面、140：叩动套筒、141：升降叩动齿、142：环形齿、150：按压杆、160：密封橡胶环、200：防干装置、210：开关套、211：弹性部、211a：防压凸起、211b：锁定凸起、212：升降槽、213：转动槽、214：叩动弹簧、220：升降帽、221：支撑凸起、222：转动轴、230：转动封闭帽、231：封闭面、232：转动支撑部、233：轴孔、234：转动操作凸起、240：封闭垫、241：进出孔、242：接触环、243：弹簧插接槽、244：支撑弹簧。
 本发明的最佳实施方式
如图1-图14所示，本发明是由笔杆(110)、设在笔杆(110)上端并采用螺纹或卡接方式设置在笔杆(110)上的笔夹(120)、以及插入至笔杆(110)内部的按压杆(150)、笔尖(1)、墨水管(130)、以及用于封闭笔杆(110)前端以防止墨水变干的防干装置(200)。
所述墨水管(130)存储着用于给设置在芯结合管(135)中的笔尖(1)供给墨水的墨水过滤器（2）。
所述笔杆(110)内侧上端设有接触笔夹(120)下部外围以封闭内部连接部位的密封环(111)，笔杆(110)中央部分设有与叩动套筒(140)配合的旋转凸起(112)，旋转凸起(112)的上部设置有倾斜面，旋转凸起(112)按一定长度延长至下部，在旋转凸起(112)的下部还设置有用于插入升降帽(220)所形成的支撑凸起(221)的安装槽(113)，在相邻的两条旋转凸起(112)之间位于笔杆(110)的壁面上设置有用于阻挡开关套(210)下降之后再上升的限位凸起(114)，笔杆(110)内侧下部设有支持封闭垫(240)并安装支撑弹簧(244)的弹簧安装面(115)。
所述弹簧安装面(115)的上部设有用于供插入的封闭垫(240)在支撑弹簧(244)支撑下按一行程升降的操作空间(116)。
所述笔杆(110)上端结合的笔夹(120)插入至密封环(111)中，防止产生缝隙，起到上部封闭的作用。
所述笔夹(120)内部设有密封橡胶环(160)，密封橡胶环(160)将墨水管(130)上部遮蔽面(136)和笔夹(120)的开放孔中升降的按压杆(150)密封，以防止外界空气经由间隙流入封闭的笔杆(110)中。
所述笔杆(110)内部插入装有笔尖(1)的墨水管(130)，设置在墨水管(130)上部的叩动套筒(140)、以及设置在墨水管(130)下部的防干装置(200)。
所述墨水管(130)的上部形成有与叩动套筒(140)连接的限位台阶面(131)，墨水管(130)的外侧中间部分双侧形成用于导向叩动套筒(140)滑动的导向凸起(132)，墨水管(130)在导向凸起(132)下侧形成用于插在开关套(210)双侧贯通形成的升降槽(212)中的紧固升降凸起(133)，紧固升降凸起(133)上侧形成防脱卡接面(134)，防脱卡接面(134)与开关套(210)的防压凸起(211a)配合，而在开关套(210)两侧的弹性部(211)恢复原位向展开后，两个弹性部(211)之间的尺寸大于下侧的防脱卡接面(134)尺寸，墨水管(130)的底部部形成用于插入笔尖(1)的芯结合管(135)， 墨水管(130)的顶部形成与密封橡胶环(160)相紧贴的遮蔽面(136)。
所述墨水管(130)与按压杆(150)可以采用螺丝连接等固定方式连接在一起。
所述叩动套筒(140)内部形成等间距分布的升降叩动齿(141)，叩动套筒(140)的下端部形成环形齿(142)的直径大于升降叩动齿(141)围绕形成的圆的直径。
所述防干装置(200)由墨水管(130)下部插入其中的开关套(210)、开关套(210)中可上下移动的升降帽(220)、位于升降帽(220)上部以弹性支撑墨水管(130)的叩动弹簧(214)、结合在升降帽(220)下部并可以旋转的转动封闭帽(230)、以及插入至笔杆(110)内侧紧贴转动封闭帽(230)并用于露出笔尖(1)的封闭垫(240)、弹性支撑封闭垫(240)的支撑弹簧(244)组成。
墨水管(130)下部插入入到开关套(210)中，开关套(210)上端两侧形成按一定长度切割分开的弹性部(211)，开关套(210)上设置有延伸至两个弹性部(211)上并按一定长度贯通形成有升降槽(212)，开关套(210)下部形成一侧开放并用于安装转动封闭帽(230)的转动槽(213)。
转动操作凸起(234)安装在转动槽(213)中，转动槽(213)形成用于拉动转动操作凸起(234)转动以打开封闭垫(240)的进出孔(241)开放操作面(213a)，转动槽(213)还形成用于推动转动操作凸起(234)转动以关闭进出孔(241)的封闭操作面(213b)。
所述弹性部(211)上端内侧形成防压凸起(211a)， 弹性部(211)上端外侧形成用于与笔杆(110)内侧的限位凸起(114)配合的锁定凸起(211b)。
叩动弹簧(214)支持墨水管(130)恢复弹性，完成叩动操作。
升降帽(220)从开关套(210)上端向下插入结合，升降帽(220)上部两侧形成支撑凸起(221)，支撑凸起(221)插入至升降槽(212)中，支撑凸起(221)凸出于升降槽(212)的部位还插入到安装槽(113)中，升降帽(220)的 下部两侧形成转动轴(222)，转动轴(222)插入到转动封闭帽(230)上。
所述转动封闭帽(230)位于开关套(210)的下部，转动封闭帽(230)两侧的转动操作凸起(234)插入到转动槽(213)中，并与上部插入升降帽(220)相互连接。
所述转动封闭帽(230)紧贴在封闭垫(24)的上部，转动封闭帽(230)具有用于封闭笔杆(110)下部的球形的封闭面(231)、以及在封闭面(231)两侧朝上侧凸起的转动支撑部(232)组成，转动支撑部(232)中心形成向一侧切开以用于插入转动轴(222)的轴孔(233)，转动槽(213)上部开放操作面(213a)和下部封闭操作面(213b)，转动支撑部(232)上还形成转动操作凸起(234)。
所述转动操作凸起(234)偏心位于轴孔(233)的上方，开关套(210)可以相对于轴孔(233)中心上下移动以驱动转动封闭帽(230)完成转动操作。
转动封闭帽(230)在从开关套(210)侧面插入结合时，升降帽(220)的转动轴(222)插入至轴孔(233)中。
所述封闭垫(240)从笔杆(110)开放的上部插入，封闭垫(240)中央贯通形成进出笔尖的进出孔(241)，封闭垫(240)外侧形成与笔杆(110)内壁相接触的接触环(242)，封闭垫(240)在下部设置有弹簧插接槽(234)，用于弹性支撑封闭垫(240)的支撑弹簧(240)插入弹簧插接槽(234)中以
防止支撑弹簧(240)脱落，通过支撑弹簧(244)使得封闭垫(240)与转动封闭帽(230)弹性紧贴。
本发明的实例中，按压杆(150)下面形成环形橡胶槽(150a)，环形橡胶槽(150a)上形成紧固密封橡胶环(160)，密封橡胶环(160)与笔夹(120)内壁滑动接触后封闭空气流通。
所述按压杆(150)的环形橡胶槽(150a)中设置有O型结构的密封橡胶环(160)。
下面，说明本发明的操作过程。
本发明是由笔杆(110)、笔杆(110)上端的按压杆(150)、插入至笔杆(110)内部防止墨水变干的防干装置(200)组成，通过笔杆(150)上部的按压杆(150)操作，以带动防干装置(200)开闭笔尖(1)进出封闭垫(240)的进出孔(241)，不使用笔时通过防干装置(200)将封闭垫(240)进出孔(241)封闭以防止墨水变干。
按动按压杆(150)时，按压杆(150)带动墨水管(130)一同下降，限位台阶面(131)抵靠在下部的叩动套筒(140)上，防脱卡接面(134)推动开关套(210)内壁上端突起的防压凸起(211a)下降， 下降的开关套(210)对下部由支撑弹簧(244)弹性支撑的封闭垫(240)施加压力，按动一定距离后，转动封闭帽(230)和封闭垫(240)分离开，转动槽(213)的开放操作面(213a)将推动转动支撑部(232)外侧的转动操作凸起(234)，以使得转动封闭帽(230)的转动操作，进而打开封闭垫(240)的进出孔(24)，使墨水管(130)的芯结合管(135)上的笔尖(1)朝笔杆(110)下方伸出。
一方面，所述限位台阶面(131)达到叩动套筒(140)下端环形齿(142)的旋转凸起(112)时，按一定角度旋转下降，旋转凸起(112)位于环形齿(142)的边缘上，定位叩动套筒(140)的操作，墨水管(130)上结合的笔尖(1)朝笔杆(110)外侧伸出。
在墨水管(130)下部形成的防脱卡接面(134)对开关套(210)内侧上部形成的防压凸起(211a)向下压动，以使得开关套(210)下降时，下部的支撑弹簧(244)弹性支撑封闭垫(240)，受压封闭垫(240)按一定距离下降并压缩支撑弹簧(244)，以使得封闭垫(240)与转动封闭帽(230)形成一定的间隔。
在转动封闭帽(230)与封闭垫(240)隔离开后，继续下移墨水管(130)时，开关套(210)下端形成的转动槽(213)的上部开放操作面(213a)将按动转动操作凸起(234)，转动封闭帽(230)以升降帽(220)的转动轴(222)为中心向侧面方向转动，以打开封闭垫(240)进出孔(241)，结合在墨水管(130)上的笔尖(1)伸出。
此时，位于所述转动槽(213)中的转动操作凸起(234)上面开放操作面(213a)间隔A移动距离和下移开关套(210)达到封闭垫(240)上面的间隔a’移动距离差、与转动封闭帽(230)离开封闭垫(240)的间隔a”的间隔高度相同，转动封闭帽(230) 旋转以打开封闭垫(240)的进出孔(241)，两者之间不产生摩擦。
另一方面，所述开关套(210)受墨水管(130)加压继续下移，开关套(210)继续压动封闭垫(240)下移，当封闭垫(240)下移到最底部时，开关套(210)的防压凸起(211a)及锁定凸起(211b)位于笔杆(110)内部限位凸起(114)下方。
开关套(210)与封闭垫(240)相接触下移到最底部，防脱卡接面(134)脱离开防压凸起(211a)，弹性部(211)移动到限位凸起(114)下面空间之后被挤压撑开。
弹性部(211)向外侧撑开后，防压凸起(211a)位于防脱卡接面(134)的上方，弹性部(211)向外侧撑开状态下，弹性部(211)外侧凸起的锁定凸起(211b)抵靠在笔杆(110)的限位凸起(114)的下部，以使得开关套(210)按压在封闭垫(240)上，以维持转动封闭帽(230)和封闭垫(240)处于分离开的状态。
在按压杆(150)重新按动时，限位台阶面(131)按动叩动套筒(140)进行下移，下移的叩动套筒(140)将解除升降叩动齿(141)的限位，以带动笔尖(1)回缩。
此时，在开关套(210)中叩动弹簧(214)将推动墨水管(130)上移，防脱卡接面(134)向外侧撑开的弹性部(211)并移动至原位，在笔杆(110)的限位凸起(114)与锁定凸起(211b)卡接状态被解除，开关套(210)上移。
开关套(210)的上移过程中，开关套(210)内部的叩动弹簧(214)的弹性力将推动墨水管(130)上移，上移的墨水管(130)上的紧固升降凸起(133)沿将升降槽(212)上移的并移动至开关套(210)的上端部。
所述开关套(210)上移时，转动槽(213)的封闭操作面(213b)拉动转动操作凸起(234)，转动封闭帽(230)以转动轴(222)为中心转动，以使得封闭面(231)从开关套(210)从侧面转动并移动。
在支撑弹簧(244)的弹力下，封闭垫(240)在操作空间(116)中上移一定的距离，并使得转动封闭帽(230)的封闭面(231)紧贴在封闭垫(240)的进出孔(241)上，支撑弹簧(244)对封闭垫(240)施加压力，以使得关闭封闭垫(240)的进出孔(241)。
一方面，所述笔杆(110)上部接触密封环(111)的笔夹(120)外侧下部形成封闭，贯通的笔夹(120)内部上方通过密封橡胶环(110)密封，以防止空气流入并实现封闭。
密封橡胶环(160)形成的孔比按压杆(150)外径大，所以密封橡胶环(160)不会与按压杆(150)产生摩擦，叩动操作轻柔顺畅。
一方面，本发明的其他实例一样，所述按压杆(150)下部形成安装密封橡胶环(160)的密封橡胶环槽(150a)，密封橡胶环槽(150a)中设置有密封橡胶环(160)，密封橡胶环(160)与笔夹的开内壁接触时，笔尖(1)的伸出状态下，笔夹(120)与下移的按压杆(150)产生缝隙；而笔尖(1)的回缩状态下，上移的按压杆(150)通过O型环密封橡胶环(160)与笔夹(120)内侧壁密封连接。

Claims (6)

  1. 一种具备防干燥装置的书写工具，包括笔杆、以及设置在所述笔杆中的笔尖、墨水管和按压杆，所述笔尖连接在所述墨水管的下部，所述按压杆位于所述墨水管的上部并用于驱动所述墨水管在所述笔杆中移动，其特征在于：
    所述笔杆下端部的内壁上设置有限位凸起、安装槽和弹簧安装面，所述限位凸起位于所述弹簧安装面的上方，所述安装槽位于所述限位凸起和所述弹簧安装面之间；
    所述墨水管的外壁上设置有紧固升降凸起和防脱卡接面，所述防脱卡接面位于所述紧固升降凸起的上方；
    所述具备防干燥装置的书写工具还包括防干装置；所述防干装置包括开关套、升降帽、叩动弹簧、转动封闭帽、封闭垫和支撑弹簧；
    所述开关套插在所述笔杆中，所述开关套的上端两侧分别设置有弹性部，所述开关套上还设置有延伸分布到所述弹性部上的升降槽，所述弹性部的上端外侧设有与所述限位凸起配合防压凸起，所述弹性部的上端内侧设置有与所述防脱卡接面配合的锁定凸起，所述开关套的下端侧部设置有转动槽；
    所述升降帽插入到所述开关套中，所述升降帽的上端两侧分别设置有支撑凸起，所述升降帽的下端两侧分别设置有转动轴，所述紧固升降凸起和所述支撑凸起上下布置并插在对应侧的所述升降槽中，所述支撑凸起还插在所述安装槽中；
    所述叩动弹簧插在所述开关套中并位于所述支撑升降帽和所述墨水管之间；
    所述转动封闭帽具有封闭面和分布在所述封闭面两侧的转动支撑部，所述转动支撑部上设置有轴孔和转动操作凸起，所述转动操作凸起偏心设置在所述轴孔的一侧，所述转动轴插在对应的所述轴孔中，所述转动操作凸起插在所述转动槽中；
    所述封闭垫设置有用于供所述笔尖进出的进出孔，所述封闭垫位于所述开关套的下方，所述支撑弹簧设置在所述封闭垫与所述弹簧安装面之间，所述转动封闭帽用于转动以开关所述进出孔。
  2. 根据权利要求1所述的具备防干燥装置的书写工具，其特征在于：还包括笔夹；所述笔夹插在所述笔杆的上端部，所述按压杆插在所述笔夹中并与所述墨水管连接，所述笔杆内壁设置有密封环，所述密封环接触在所述笔夹的外壁。
  3. 根据权利要求2所述的具备防干燥装置的书写工具，其特征在于：所述按压杆的外壁设置有环形橡胶槽，所述环形橡胶槽中设置有密封橡胶环，所述密封橡胶环位于所述笔夹与所述按压杆之间。
  4. 根据权利要求1所述的具备防干燥装置的书写工具，其特征在于：所述封闭垫的底部设置有弹簧插接槽，所述支撑弹簧上端部插在所述弹簧插接槽中。
  5. 根据权利要求1所述的具备防干燥装置的书写工具，其特征在于：所述笔杆的内壁中还设置有多条绕所述笔杆中心线分布的旋转凸起；所述墨水管的外管壁上设置有导向凸起和限位台阶面，所述限位台阶面位于所述导向凸起的上方；
    所述具备防干燥装置的书写工具还包括叩动套筒，所述叩动套筒的内壁设置有绕其轴线等间距分布的升降叩动齿，所述叩动套筒下端设置有环形齿；所述升降叩动齿与所述导向凸起配合，所述环形齿卡在所述旋转凸起上。
  6. 根据权利要求1-5任一项所述的具备防干燥装置的书写工具，其特征在于：当所述笔尖回缩至所述笔杆内时，所述转动封闭帽的所述封闭面贴靠在所述封闭垫并密封所述进出孔；当所述笔尖伸出至所述笔杆外时，所述转动封闭帽的所述封闭面转动到所述封闭垫的一侧以打开所述进出孔。
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US11584152B2 (en) 2023-02-21
EP3892475A1 (en) 2021-10-13
US20210260911A1 (en) 2021-08-26
KR102027070B1 (ko) 2019-09-30
JP7045492B2 (ja) 2022-03-31
CN211892617U (zh) 2020-11-10
CN111186230A (zh) 2020-05-22
EP3892475A4 (en) 2022-01-05

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