WO2022092349A1 - Appareil d'expansion et de contraction - Google Patents

Appareil d'expansion et de contraction Download PDF

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Publication number
WO2022092349A1
WO2022092349A1 PCT/KR2020/014874 KR2020014874W WO2022092349A1 WO 2022092349 A1 WO2022092349 A1 WO 2022092349A1 KR 2020014874 W KR2020014874 W KR 2020014874W WO 2022092349 A1 WO2022092349 A1 WO 2022092349A1
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WO
WIPO (PCT)
Prior art keywords
expansion
tube
present
contraction
pipe
Prior art date
Application number
PCT/KR2020/014874
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English (en)
Korean (ko)
Inventor
노욱래
Original Assignee
노욱래
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 노욱래 filed Critical 노욱래
Priority to PCT/KR2020/014874 priority Critical patent/WO2022092349A1/fr
Publication of WO2022092349A1 publication Critical patent/WO2022092349A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement

Definitions

  • the present invention relates to a telescopic device, and more specifically, to an expansion and contraction device in which the diameter of the expansion tube is gradually reduced and the length can be adjusted sequentially, so that the volume is small and portable.
  • the stretchable device can be adjusted in length by extending or shortening it to a desired shape according to the surrounding environment.
  • the telescopic device is widely used in various fields such as construction poles such as guide signs and safety signs, length measuring instruments, portable antennas, indicator rods, ballpoint pens, drug injector plungers, hydraulic hosts, cranes, and camera tripods.
  • Such a telescopic device is mainly composed of a smooth surface, and has a coupling means inside the device, or a safety device is included to prevent danger or accidents due to an external fixing means.
  • Korean Patent Publication No. 10-2003-0076624 (hereinafter, 'Document 1'), Korean Utility Model Publication No. 20-0359415 (hereinafter 'Document 2'), Korean Patent Publication No. There are 10-1986-0000197 (hereinafter, 'Document 3') and Republic of Korea Utility Model Publication No. 20-0423881 (hereinafter 'Document 4').
  • Document 1 relates to a telescopic hydraulic hoist, which has a plurality of telescopic tube ends, and which improves stability and durability in an extended position.
  • the tube end is composed of a smooth surface and the net bearing thread is coupled to the tube end located in the middle, but there is a problem in that the tube end may come off if the coupling is incomplete.
  • Document 2 relates to an antenna that can be used in an emergency by selectively separating a writing instrument and a bleeding needle inside the antenna, which is a multi-functional mobile phone antenna coupled to a fixed tube in a flexible multi-stage structure.
  • Document 3 relates to a crane whose weight is lightened by combining a crane made of an outer cylinder, a middle cylinder, and an inner cylinder in a multi-stage method as a telescopic device for a crane vehicle.
  • the cylinder itself is large because it consists only of an outer cylinder, a middle cylinder, and an inner cylinder, and a safety problem may occur because the middle cylinder and the inner cylinder protrude at the same time.
  • Document 4 relates to an indicator rod, which can be adjusted in length with an indicator rod, and includes a laser pointer at the tip, so that it can be easily pointed from a distance.
  • the multi-stage indicator bar body is coupled by fitting so that the length can be adjusted.
  • the present invention is to solve the problems of the above technology, the diameter of the expansion tube is gradually reduced, the volume is small, it is intended to provide a portable expansion and contraction device.
  • the present invention is to improve the problem that the expansion tube is located in the middle is adjustable by moving the expansion tube sequentially.
  • the present invention can be expanded and contracted through rotation, so it can be used in various products such as a construction pole, a length measuring instrument, a portable antenna, an indicator rod, a ballpoint pen, a drug injector plunger, a hydraulic host, a crane, and a camera tripod. , we want to slim down the product using the expansion and contraction device.
  • the drug injector is miniaturized by the stretchable structure, and it is intended to prevent the user from being directly exposed to the external environment when injecting the drug.
  • the present invention provides a fixed tube 100 in which one or more expansion and contraction tubes 200 are inserted; and one or more telescopic pipes 200 whose diameters are gradually reduced. It is a telescopic device, characterized in that it is included, and the length can be adjusted sequentially.
  • the fixed tube 100 and the expansion tube 200 of the present invention are in the form of a cylinder with a hole in the center, and include a fixed portion 500 .
  • the present invention is characterized in that the motor 300 and the gear 400 are further included on one side of the fixed tube 100 .
  • the telescopic device of the present invention is used for any one or more of a construction pole, a length measuring instrument, a portable antenna, an indicator rod, a ballpoint pen, a drug injector plunger, a hydraulic host, a crane, a camera tripod, and the like.
  • the present invention has the effect of providing an expansion and contraction device that is portable because the diameter of the expansion tube is gradually reduced and the volume is small.
  • the present invention can be adjusted by sequentially moving the expansion tube, so that the problem of the expansion tube located in the middle is improved.
  • the present invention can be expanded and contracted through rotation, so it can be used in various products such as a construction pole, a length measuring instrument, a portable antenna, an indicator rod, a ballpoint pen, a drug injector plunger, a hydraulic host, a crane, and a camera tripod. , the product using the expansion and contraction device becomes slimmer.
  • the present invention has an effect of preventing the user from directly exposing the drug to the external environment when injecting the drug because the drug injector is miniaturized by the stretchable structure by applying the telescopic device to the drug injector.
  • the present invention is convenient to use because vibration and noise are small during use.
  • FIG. 1 is a perspective view of a state in which the expansion and contraction device of the present invention is released.
  • Figure 2 is a perspective view of a state in which the telescopic device of the present invention is locked.
  • Figure 3 is an exploded perspective view of the expansion and contraction device of the present invention.
  • FIG. 4 is a cross-sectional view of the fixed tube of the expansion and contraction device of the present invention.
  • FIG. 5 is a cross section of the expansion and contraction tube of the expansion and contraction apparatus of the present invention.
  • FIG. 6 is a cross-sectional view of the fourth expansion tube of the expansion and contraction device of the present invention.
  • FIG. 7 is a perspective view in which the telescopic device of the present invention is coupled to a motor and a gear.
  • FIG. 9 is an exploded view of the telescopic device of the present invention.
  • FIG 10 is a perspective view of a state in which the plunger included in the drug injector of the present invention is released.
  • FIG. 11 is a perspective view of a state in which the plunger included in the drug injector of the present invention is locked.
  • FIG 13 and 14 are cross-sectional views including an adjustment part in the plunger of the present invention.
  • the present invention is not limited to the embodiments disclosed herein, and may be embodied in other forms.
  • the embodiments disclosed herein are provided so that the spirit of the present invention can be sufficiently conveyed to those of ordinary skill in the technical field to which the present invention belongs, and all transformations included in the technical spirit and scope of the present invention , should be understood to include equivalents or substitutes.
  • the present invention should not be limited by the following embodiments, and it should be understood that all transformations included in the technical spirit and scope of the present invention are included. That is, a person of ordinary skill in the art to which the present invention pertains can variously modify or modify the present invention by adding, changing, deleting or adding components within the scope that does not depart from the spirit of the present invention described in the claims. It will be possible to change, and this will also be said to be included within the scope of the present invention.
  • the expansion and contraction device of the present invention may include a fixed pipe 100 into which one or more expansion pipes 200 are inserted, and at least one expansion pipe 200 whose diameter is gradually reduced, but is not limited thereto.
  • FIG. 1 is a perspective view of a state in which the telescopic device of the present invention is unlocked
  • Figure 2 is a perspective view of a state in which the telescoping device is locked.
  • the expansion and contraction device includes one or more expansion and contraction tubes 200 , so that the length can be sequentially adjusted and thus can be expanded and contracted.
  • FIG. 3 is an exploded perspective view of the expansion and contraction device.
  • the fixing tube 100 has a female screw 511 formed therein, and a locking part 520 is formed at one end of the fixed tube at a predetermined height.
  • the female screw 511 formed in the fixed tube 100 may be expanded and contracted by being coupled with the male screw 512 and the engaging portion 520 formed on one end of the expansion tube 200 .
  • the length of the inner diameter of the fixed tube 100 and the length of the outer diameter of the engaging portion 520 protruding from the outer end side of the expansion and contraction tube 200 may be the same.
  • the female screw 511 formed inside the fixed tube 100 may be combined with the male screw 512 and the locking part 520 protruding from one end of the first expansion tube 210 to expand and contract.
  • the expansion tube 200 may be composed of one or more according to the outer diameter, preferably 1 to 10, more preferably 1 to 7, most preferably 1 to 4, but The number of expansion tubes 200 may be changed according to the product to be used.
  • the expansion tube 200 has a female screw 511 formed therein, and a locking part 520 is formed at one end of the inner end at a predetermined height.
  • the locking part 520 protruding from one end of the expansion tube 200 can prevent the locking part 520 formed in the fixed tube 100 from being separated when combined with the fixing tube 100 .
  • the locking portion 520 protruding from one end of the expansion tube 200 meets the locking portion 520 formed inside the expansion tube 200 of another size when combined with the expansion tube 200 of another size. It can be prevented from falling out.
  • the expansion and contraction pipe 200 may include a first expansion pipe 210 , a second expansion pipe 220 , a third expansion pipe 230 , and a fourth expansion pipe 240 .
  • first expansion pipe 210, the second expansion pipe 220; And the third expansion pipe 230 may be configured in the basic form of the expansion pipe 200, except that only the outer diameter and height are different.
  • the first expansion pipe 210, the second expansion pipe 220, and the third expansion pipe 230 have a female screw 511 formed therein, as shown in FIG. 520) is formed.
  • first expansion pipe 210 the second expansion pipe 220 , and the third expansion pipe 230 have a form in which a male screw 512 and a locking part 520 are coupled to the external one end side as shown in FIG. 5 . protrusion is formed.
  • the fourth expansion pipe 240 located at the innermost side may further include a fastening part 600 in the basic shape of the expansion pipe 200 .
  • the fourth expansion pipe 240 is formed in a form in which the external screw 512 and the locking part 520 are coupled to one another, and the fastening part 600 is formed to protrude at the other external end.
  • the fastening part 600 includes a female screw 511 or a male screw 512 to enable coupling with various products, and preferably includes a female screw 511 on the inside of the coupling part 600, or a male screw on the outside ( 512) may be included, but is not limited thereto.
  • the inner diameter length of the first expansion pipe 210 is coupled to the external screw 512 and the locking part 520 on one side of the first expansion pipe 210 as shown in FIG. 3 . It may be formed to be the same as the outer diameter length of the portion in which the protrusion is formed.
  • the inner diameter length of the first expandable pipe 210 is the same as the outer diameter length of the portion in which the external screw 512 and the locking part 520 are coupled to the external one end side of the second expandable pipe 220 can be formed.
  • the inner diameter length of the second expandable pipe 220 is the same as the outer diameter length of the portion in which the external screw 512 and the locking part 520 are coupled to the external one end of the third expansion pipe 230 to be the same can be formed.
  • the inner diameter length of the third expansion tube 230 is the same as the outer diameter length of the portion in which the external screw 512 and the locking part 520 are coupled to the outer end side of the fourth expansion tube 240 . can be formed.
  • the fixed tube 100 and the expansion and contraction tube 200 are in the form of a cylinder with a hole in the center as shown in FIG. 3 , and may include a fixing part 500 , but is not limited thereto.
  • the material of the fixed tube 100 and the expansion and contraction tube 200 may use any one or more of a metal or a synthetic resin, and preferably a metal may be used, but is not limited thereto.
  • the metal may be any one of iron, aluminum, copper, bronze, brass, titanium, stainless steel, or a titanium alloy, but is not limited thereto.
  • the synthetic resin may be any one of ceramic, polycarbonate (PC), or polyvinyl chloride (PVC), but is not limited thereto.
  • the fixing part 500 may include a screw 510 and a locking part 520 , but is not limited thereto.
  • the screw 510 may be any one of a triangular screw, a square screw, a trapezoidal screw, a sawtooth screw, or a round screw, and preferably any one of a triangular screw, a trapezoidal screw, or a round screw may be selected. not limited
  • the triangular screw has a triangular screw thread and is used for fastening.
  • the trapezoidal screw is easier to process than the square screw, so precision machining is possible, and it is used for power transmission.
  • the round screw is used because it is possible to remove foreign substances that are easy to enter such as sand and dust.
  • FIG. 4 is a cut surface of the fixed tube of the expansion and contraction device
  • FIG. 5 is a cut surface of the expansion tube of the expansion and contraction device
  • FIG. 6 is a cut surface of the fourth expansion tube of the expansion and contraction device.
  • the screw 510 may be any one or more of a female screw 511 and a male screw 512 .
  • the female screw 511 is included inside the fixed pipe 100 and the expansion pipe 200
  • the male screw 512 is included outside the expansion pipe 200 .
  • the fixed tube 100 and the expansion and contraction tube 200 can be used semi-permanently by replacing and repairing only the parts that do not drive well due to wear due to the combination of female/male screws.
  • the locking part 520 may be included in a non-threaded type to prevent separation of the fixed tube 100 or the expansion and contraction tube 200 by rotation.
  • the locking part 520 is included in the inside of the fixed tube 100 , and may be included in and outside the expansion and contraction tube 200 .
  • a motor 300 and a gear 400 may be further included on one side of the fixed tube 100 .
  • the motor 300 and the gear 400 may use a known technology.
  • the gear 400 may be changed in size according to the outer diameter of the fixed tube 100 in order to rotate the expansion and contraction device, and may be composed of a male screw 512 in order to mesh well with the fixed tube 100 .
  • the outer diameter of the expansion tube 200 is released in the order of from a small tube to a large tube, and the expansion and contraction device is lengthened.
  • the fourth expansion pipe 240 , the third expansion pipe 230 , the second expansion pipe 220 , and the first expansion pipe 210 are lengthened in this order.
  • the expansion and contraction tube 200 is locked in order from the largest tube to the smallest tube, thereby shortening the expansion and contraction device.
  • the first expansion pipe 210 , the second expansion pipe 220 , the third expansion pipe 230 , and the fourth expansion pipe 240 are shortened in this order.
  • the telescopic device according to the first embodiment can be used in various products such as a construction pole, a length measuring instrument, a portable antenna, an indicator rod, a ballpoint pen, a drug injector plunger, a hydraulic host, a crane, and a camera tripod.
  • the function of the plunger 10 may be performed by using the telescopic device of Example 1 as a drug injector.
  • the drug injector may be any one of a syringe, a pump type, or a pen type, and preferably any one of a pump type or a pen type, but is not limited thereto.
  • the drug injector may use a known technique, but is not limited thereto.
  • the drug may include any one of insulin, hormone, heparin, or an inducer, but is not limited thereto.
  • the plunger 10 used in the drug injector in the present invention is, as shown in FIGS. 10 and 11, a fixed tube 100 into which one or more expansion tubes 200 are inserted; One or more expansion tubes 200 that are gradually reduced in diameter; and a pressure plate 610 that pushes the drug for injection; may include, but is not limited thereto.
  • the fixed tube 100 and the expansion and contraction tube 200 may be formed in the same manner as in the first embodiment.
  • the fastening part 600 protruding from the other end of the fourth expansion tube 240 may further include a pressing plate 610 .
  • the fastening part 600 includes a female screw 511 or a male screw 512 to be engageable with the pressing plate 610, and preferably, a female screw 511 may be included inside the fastening part 600, but is not limited thereto. does not
  • the pressing plate 610 is a plate that is pushed to inject a drug, and among the fixed tube 100, the first expansion pipe 210, or the second expansion pipe 220 to give sufficient force. It may be the same size as any one of the outer diameters, preferably may be the same size as the outer diameter of the fixed tube 100, but is not limited thereto.
  • the pressure plate 610 may be any one of rubber or synthetic resin, preferably synthetic resin may be used, but is not limited thereto.
  • any one of styrene butadiene rubber (SBR), nitrile butadiene rubber (NBR) or silicone may be used, and the synthetic resin may be either polypropylene (PP) or polyvinyl chloride (PVC).
  • SBR styrene butadiene rubber
  • NBR nitrile butadiene rubber
  • silicone silicone
  • the synthetic resin may be either polypropylene (PP) or polyvinyl chloride (PVC).
  • PP polypropylene
  • PVC polyvinyl chloride
  • synthetic resin is used to prevent problems such as wear due to frequent use or deterioration of rubber due to its superior strength than rubber.
  • a motor 300 and a gear 400 may be further included at one side of the fixing tube 100 of the plunger 10 .
  • the motor 300 and the gear 400 may be formed in the same manner as in the first embodiment.
  • the expansion and contraction device of the present invention can be applied to a drug injector by giving different contact resistance values to the screws 510 of the fixed tube 100 and the expansion tube 200 to sequentially expand and contract.
  • the drug injector is a self-contained device that allows a user who needs self-management to inject drugs and other injectable substances into the body without formal medical training, and the user must directly control the amount of drug injection.
  • the present invention applies an expansion and contraction device to the drug injector so that the expansion and contraction tube 200 can be sequentially expanded and contracted by different contact resistance values, so that only a certain amount of the drug is injected and can be safely used. .
  • the control unit 700 may be further included in the drug injector of the second embodiment.
  • the adjusting unit 700 is for sequentially adjusting the order of expansion and contraction of the plunger 10 included in the drug injector, as shown in FIGS. 13 and 14 , and includes a support unit 710 ;
  • the adjustment fixing unit 720 and the elastic unit 730 may be included, but is not limited thereto.
  • the support 710 may be of a fixed type or a movable type, but is not limited thereto.
  • the adjustment fixing part 720 is for sequentially expanding and contracting the expansion and contraction tube 200 and is included to fix the specific expansion and contraction tube 200 .
  • adjustment fixing unit 720 may be manufactured as a C-cut or a round cut so as to move to the next expansion-extension pipe 200 as the expansion-contraction pipe 200 expands and contracts. .
  • the edge of the expansion tube 200 may also be manufactured in the same manner as the adjustment fixing unit 720 in order to make movement naturally, but is not limited thereto. .
  • the elastic part 730 may be made of a spring, and the height between the expansion and contraction tube 200 and the adjustment fixing part 720 may be naturally adjusted.
  • the method of adjusting the expansion and contraction order of the plunger 10 is as shown in FIG. 14 , when the gear 400 of the fixed tube 100 by the motor 300 rotates to the right. , the adjustment fixing unit 720 is fixed to the third expansion pipe 230, only the fourth expansion pipe 240 can be elongated.
  • the position of the adjustment fixing part 720 is fixed, but as the fourth expansion tube 240 lengthens, the adjustment fixing part 720 fixes the second expansion tube 220 in the third expansion tube 230 . can do.
  • the adjustment fixing part 720 fixes the first expansion pipe 210 in the second expansion pipe 220, and only the second expansion pipe 220 lengthens, and the engaging part of the second expansion pipe 220 ( By 520), the first expansion pipe 210 may be elongated without being fixed.
  • the adjustment fixing unit 720 fixes the second extension tube 220 to the first extension tube ( 210) can be shortened.
  • the position of the adjustment fixing part 720 is fixed, but as the first expansion tube 210 is shortened, the adjustment fixing part 720 fixes the third expansion tube 230 in the second expansion tube 220 . can do.
  • the adjustment fixing part 720 fixes the fourth expansion pipe 240 in the third expansion pipe 230, and only the third expansion pipe 230 is shortened, and the engaging part of the third expansion pipe 230 ( By 520, the fourth expansion tube 240 may be shortened without being fixed.
  • the adjustment fixing unit 720 can prevent disordered expansion and contraction sequence due to abrasion of the screw thread due to the number of times the drug injector is used or the aging of the machine.
  • the present invention relates to an expansion and contraction device, and the diameter of the expansion tube is gradually reduced, and the length can be adjusted sequentially, so that the volume is small and it is an industrially usable invention that can be carried.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

La présente invention concerne un appareil d'expansion et de contraction, de manière plus spécifique une invention dans laquelle le diamètre des tubes d'expansion et de contraction devient progressivement plus petit et la longueur peut être ajustée de manière séquentielle, ce qui permet d'obtenir un volume plus petit, pour permettre une portabilité. De plus, la présente invention peut être étendue ou contractée par rotation pour permettre une utilisation dans divers produits, tels que des poteaux de construction, des dispositifs de mesure de distance, des antennes portables, des pointeurs, des stylos à bille, des pistons d'injection de médicament, des manches hydrauliques, des grues et des tripodes de caméra.
PCT/KR2020/014874 2020-10-29 2020-10-29 Appareil d'expansion et de contraction WO2022092349A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2020/014874 WO2022092349A1 (fr) 2020-10-29 2020-10-29 Appareil d'expansion et de contraction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2020/014874 WO2022092349A1 (fr) 2020-10-29 2020-10-29 Appareil d'expansion et de contraction

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WO2022092349A1 true WO2022092349A1 (fr) 2022-05-05

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5035094A (en) * 1990-03-26 1991-07-30 Legare David J Nested extension/retraction structure and method of fabrication
JP2753626B2 (ja) * 1989-06-14 1998-05-20 昭和飛行機工業株式会社 伸縮ポール
KR20110108082A (ko) * 2010-03-26 2011-10-05 김성모 높이조절 및 폴딩이 가능한 천막
KR101254456B1 (ko) * 2012-02-29 2013-04-12 김진목 동시전개식 텔리스코픽 승하강 시스템
KR102077988B1 (ko) * 2019-04-23 2020-04-07 김도영 신축관
KR20200126539A (ko) * 2019-04-30 2020-11-09 노욱래 약물 주입기 플런저로 사용되는 신축 장치

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2753626B2 (ja) * 1989-06-14 1998-05-20 昭和飛行機工業株式会社 伸縮ポール
US5035094A (en) * 1990-03-26 1991-07-30 Legare David J Nested extension/retraction structure and method of fabrication
KR20110108082A (ko) * 2010-03-26 2011-10-05 김성모 높이조절 및 폴딩이 가능한 천막
KR101254456B1 (ko) * 2012-02-29 2013-04-12 김진목 동시전개식 텔리스코픽 승하강 시스템
KR102077988B1 (ko) * 2019-04-23 2020-04-07 김도영 신축관
KR20200126539A (ko) * 2019-04-30 2020-11-09 노욱래 약물 주입기 플런저로 사용되는 신축 장치

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