WO2024093386A1 - Dispositif de ponction - Google Patents

Dispositif de ponction Download PDF

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Publication number
WO2024093386A1
WO2024093386A1 PCT/CN2023/109147 CN2023109147W WO2024093386A1 WO 2024093386 A1 WO2024093386 A1 WO 2024093386A1 CN 2023109147 W CN2023109147 W CN 2023109147W WO 2024093386 A1 WO2024093386 A1 WO 2024093386A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
guide portion
gas
rod
accommodating chamber
Prior art date
Application number
PCT/CN2023/109147
Other languages
English (en)
Chinese (zh)
Inventor
于跃
杨俊盛
Original Assignee
江苏乐聚医药科技有限公司
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 江苏乐聚医药科技有限公司 filed Critical 江苏乐聚医药科技有限公司
Publication of WO2024093386A1 publication Critical patent/WO2024093386A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass

Definitions

  • the invention relates to a device for puncturing a container, in particular to a puncturing device capable of puncturing a small high-pressure gas bottle.
  • a small high-pressure gas cylinder is a device for storing high-pressure gas and is widely used in the automotive, chemical, firefighting, medical, food and other fields.
  • One of its functions is to provide stable driving force to other devices by releasing high-pressure gas, for example, providing driving force to needle-free syringes.
  • the present invention provides a puncturing device, which can conveniently realize the installation and disassembly of a device to be punctured that is filled with high-pressure gas.
  • the present invention provides a puncture device, comprising a base, which has a first accommodating cavity opening upward, a first guide portion is provided at a position of a side wall of the first accommodating cavity close to the first end of the base, and a puncture needle is provided at the second end of the base; a pressure rod, whose first end can be pivotally connected to the first end of the base; a connecting rod, whose first end can be pivotally connected to the pressure rod at a position close to the first end of the pressure rod; a bottle seat, whose first end is provided with a second guide portion, the second guide portion can be pivotally and movably connected to the first guide portion, and the second end of the bottle seat is pivotally connected to the second end of the connecting rod; wherein, when the pressure rod rotates from the first position around the first end of the base in the first rotation direction to the second position, the pressure rod drives the bottle seat to move along the first guide portion first through the connecting rod and then Then the pressure rod rotates around the second guide part
  • the bottle seat has a second accommodating cavity and a third accommodating cavity opening at the second end of the bottle seat, the second accommodating cavity and the third accommodating cavity are arranged along the length direction of the bottle seat, and an elastic component is installed in the second accommodating cavity, and the elastic component can provide elastic bias to the device to be punctured located in the third accommodating cavity.
  • an annular stop portion is provided between the second accommodating cavity and the third accommodating cavity;
  • the elastic component includes a connecting piece and a first elastic element, the first end of the first elastic element abuts against the bottom wall of the second accommodating cavity, and the second end of the first elastic element abuts against the connecting piece, and an end of the connecting piece close to the first elastic element is provided with an extension portion extending radially, the outer diameter of the extension portion is larger than the inner diameter of the annular stop portion, and the extension portion is located in the second accommodating cavity, and the end of the connecting piece away from the first elastic element passes through the annular stop portion and is inserted into the third accommodating cavity, and can contact the device to be punctured.
  • a mounting groove is provided on one side of the connecting member facing the third accommodating cavity, and a magnet is provided in the mounting groove.
  • the second end of the pressure rod is provided with a self-locking hole
  • the second end of the base is provided with: a gas channel, one end of which can be connected to a high-pressure gas source originating from the device to be punctured; and a fourth accommodating chamber, inside which a piston rod and a second elastic element are provided, the piston rod can slide along the length direction of the fourth accommodating chamber, the second elastic element can provide an elastic force to make the piston rod slide in the direction away from the self-locking hole, and the other end of the gas channel is connected to a part of the fourth accommodating chamber away from the self-locking hole; the high-pressure gas flowing in through the gas channel or the pressure-regulated high-pressure gas can push the piston rod to insert into the self-locking hole of the pressure rod while overcoming the elastic force of the second elastic element after flowing into the fourth accommodating chamber.
  • a gas communication channel is provided inside the needle, and a first connection port is provided at the second end of the base, and the first connection port is connected to the gas communication channel.
  • the piston portion of the piston rod there is a gap between the piston portion of the piston rod and the side wall of the fourth accommodating chamber, so that the high-pressure gas or the pressure-regulated high-pressure gas flowing in through the gas channel can flow into the end of the fourth accommodating chamber away from the self-locking hole through the gap, and the gas channel is filled with There are delay agents.
  • a second connection port is provided on the side wall of the second end of the base, and the gas channel is connected to a high-pressure gas source originating from the device to be punctured through the second connection port.
  • one of the first guide portion and the second guide portion is a slide groove, and the other of the first guide portion and the second guide portion is a guide shaft.
  • a cushion is provided on the lower surface of the bottle seat, and a boss is provided on the side wall of the bottle seat.
  • the puncture device of the present invention under the cooperation of the first guide part and the second guide part, uses the pressure rod and the connecting rod to drive the second end of the bottle seat to enter or leave the first accommodating cavity of the base, so as to more conveniently realize the installation and disassembly of the device to be punctured containing high-pressure gas.
  • the present invention adds a first elastic element and a connecting piece, so that the entire puncture device can adapt to gas bottles of different lengths.
  • the present invention is provided with a gas channel, a fourth accommodating chamber, a piston rod and a second elastic element in the fourth accommodating chamber, which can lock the pressure rod when there is still high-pressure gas in the device to be punctured to prevent the staff from opening the pressure rod by mistake and avoid causing danger.
  • FIG1 shows a schematic diagram of a working state of a puncture device according to an embodiment of the present invention
  • FIG2 shows a cross-sectional view of FIG1 ;
  • FIG3 shows a second schematic diagram of the working state of the puncturing device according to an embodiment of the present invention
  • FIG4 shows a third schematic diagram of the working state of the puncturing device according to an embodiment of the present invention.
  • Fig. 5 is a cross-sectional view of the bottle holder
  • FIG6 is a cross-sectional view of a connecting member
  • FIG7 is a cross-sectional view of FIG4 ;
  • FIG8 is a perspective schematic diagram of a bottle holder
  • FIG9 is a partial enlarged view of FIG2
  • FIG10 is a schematic structural diagram of the puncturing device in the state of FIG3 from another perspective
  • FIG11 is a schematic structural diagram of the puncturing device in the state of FIG1 from another perspective
  • FIG12 is a first schematic diagram of the working principle of the piston rod, which illustrates a state where the piston rod is not pushed by high-pressure gas;
  • FIG. 13 is a second schematic diagram of the working principle of the piston rod, which illustrates the state where the piston rod is pushed by high-pressure gas.
  • the puncture device according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 13 .
  • the puncturing device includes: a base 100 , a pressure rod 200 , a connecting rod 300 and a bottle holder 400 .
  • the base 100 has a first accommodating cavity 101 which is open upwards, a first guide portion 103 is provided on the side wall of the first accommodating cavity 101 near the first end 102 of the base 100, and a needle 105 is provided at the second end 104 of the base 100 (see FIG. 2 for details).
  • the first end 201 of the pressure rod 200 is pivotally connected to the first end 102 of the base 100 .
  • the first end 301 of the connecting rod 300 is pivotally connected to a position of the pressing rod 200 close to the first end 201 of the pressing rod 200 .
  • the first end 401 of the bottle holder 400 is provided with a second guide portion 402, and the second guide portion 402 is pivotally and movably connected to the first guide portion 103.
  • the second end 302 of the connecting rod 300 is pivotally connected.
  • the bottle holder 400 is used to install the device to be punctured filled with high-pressure gas.
  • the device to be punctured can be a gas bottle 500 filled with high-pressure carbon dioxide.
  • the device to be punctured is introduced by taking the gas bottle 500 as an example.
  • the pressure rod 200 when the pressure rod 200 rotates from the first position (i.e., the position of Figure 4) around the first end 102 of the base 100 in the first rotation direction (i.e., the counterclockwise direction in Figures 1 to 4) to the second position (i.e., the position of Figure 1) (i.e., rotates upward), the pressure rod 200 drives the bottle seat 400 to move along the first guide portion 103 through the connecting rod 300 and then rotates around the second guide portion 402 in the first rotation direction (i.e., the counterclockwise direction in Figures 1 to 4) (i.e., rotates upward), so that the second end 403 of the bottle seat 400 leaves the first accommodating cavity 101.
  • the first position i.e., the position of Figure 4
  • the second position i.e., the position of Figure 1 to 4
  • the pressure rod 200 drives the bottle seat 400 to move along the first guide portion 103 through the connecting rod 300 and then rotates around the second guide portion 402 in the first rotation direction (i.e., the counter
  • the pressure rod 200 rotates from the second position (i.e., the position in Figure 1) around the first end 102 of the base 100 in the second rotation direction (i.e., the clockwise direction in Figures 1 to 4) to the first position (i.e., the position in Figure 4) (i.e., rotates downward)
  • the pressure rod 200 drives the bottle holder 400 to rotate (i.e., rotate downward) around the second guide portion 402 through the connecting rod 300, so that the second end 403 of the bottle holder 400 enters the first accommodating cavity 101 and then moves along the first guide portion 103.
  • the pressure rod 200 and the connecting rod 300 are used to drive the second end 403 of the bottle holder 400 to enter or leave the first accommodating cavity 101 of the base 100, so as to more conveniently realize the installation and disassembly of the device to be punctured containing high-pressure gas.
  • the second end 104 of the base 100 is provided with a first connection port 115 (see FIG. 2 for details), and the first connection port 115 is connected to an external device requiring a high-pressure gas source through a first pipeline (not shown).
  • the inside of the puncture needle 105 is provided with a gas communication channel 116 (see FIG. 9 for details), and the gas communication channel 116 is connected to the first connection port 115.
  • the puncture needle 105 can puncture the gas bottle 500, and the gas in the gas bottle 500 can flow into the first connection port 115 through the gas communication channel 116 inside the puncture needle 105, and then flow into the external device requiring a high-pressure gas source through the first pipeline.
  • one of the first guide portion 103 and the second guide portion 402 is a slide groove, and the other of the first guide portion 103 and the second guide portion 402 is a guide shaft.
  • the first guide portion 103 is a slide groove
  • the second guide portion 402 is a guide shaft
  • the bottle holder 400 has a second accommodating cavity 404 and a third accommodating cavity 405 opening at the second end 403 of the bottle holder 400, the second accommodating cavity 404 and the third accommodating cavity 405 are arranged along the length direction of the bottle holder 400, and an elastic component 406 is installed in the second accommodating cavity 404, and the elastic component 406 can provide elastic bias to the gas bottle located in the third accommodating cavity 405.
  • annular stopper 407 is disposed between the second accommodating cavity 404 and the third accommodating cavity 405 .
  • the elastic component 406 includes a connector 408 and a first elastic element 409, wherein the first end of the first elastic element 409 abuts against the bottom wall of the second accommodating cavity 404, and the second end of the first elastic element 409 abuts against the connector 408; as shown in FIG6 , the end of the connector 408 close to the first elastic element 409 is provided with an extension portion 410 extending in the radial direction, the outer diameter D1 of the extension portion 410 is greater than the inner diameter D2 of the annular stopper 407, and the extension portion 410 is located in the second accommodating cavity 404, and the end of the connector 408 away from the first elastic element 409 passes through the annular stopper 407 and is inserted into the third accommodating cavity 405, and can contact the gas bottle 500.
  • the gas bottle 500 is placed in the third accommodating cavity 405 and the bottom of the gas bottle 500 abuts against one end of the connector 408.
  • the first elastic element 409 elastically supports the gas bottle 500 through the connecting piece 408, and continues to press down the second end 202 of the pressing rod 200, so that the gas bottle 500 moves toward the direction close to the puncture needle 105, so that the puncture needle 105 punctures the gas bottle 500.
  • the elastic supporting force provided by the first elastic element 409 to the gas bottle 500 through the connecting piece 408 is greater than the puncture force applied to the gas bottle 500 by the puncture needle, so that the puncture needle 105 can puncture the gas bottle 500.
  • the length of gas bottles 500 purchased on the market has a large error, and the arrangement of the first elastic element 409 and the connecting piece 408 enables the entire puncture device to adapt to gas bottles 500 of different lengths.
  • the first elastic element 409 is compressed to a greater extent to adapt to the longer gas bottle 500; when the gas bottle 500 is shorter, the first elastic element 409 is compressed to a lesser extent to adapt to the shorter gas bottle 500.
  • the provision of the annular stopper 407 can prevent the elastic component 406 from sliding out of the bottle holder 400 .
  • the length difference of the gas bottle 500 is preferably no greater than the length L of the portion of the connecting piece 408 that passes through the annular stopper 407 (see FIG. 2 for details), so as to prevent the connecting piece 408 from being separated from the annular stopper 407 .
  • the first elastic element 409 may be a gas spring or an elastomer.
  • the type of the first elastic element 409 is not limited thereto, and it can be any type in the prior art as long as it can achieve the above functions.
  • a mounting groove 411 is provided on one side of the connector 408 facing the third accommodating cavity 405 , and a magnet 412 is provided in the mounting groove 411 .
  • the magnet 412 can attract the gas bottle 500 , thereby positioning the gas bottle 500 .
  • the second end 202 of the pressure rod 200 is provided with a self-locking hole 203
  • the second end 104 of the base 100 is provided with: a gas channel 106 and a fourth accommodating cavity 107 .
  • One end 108 of the gas channel 106 can be connected to a high-pressure gas source from a gas bottle 500.
  • a second connection port 117 is provided on the side wall of the second end 104 of the base 100.
  • the aforementioned first pipeline is connected to the second connection port 117 through a second pipeline (not shown).
  • the second connection port 117 is connected to one end 108 of the gas channel 106, and a pressure regulating device can be provided on the first pipeline.
  • the connection point between the second pipeline and the first pipeline can be located upstream of the pressure regulating device, or can also be located downstream of the pressure regulating device.
  • the high-pressure gas in the gas bottle 500 flows from the first pipeline to the second pipeline, and finally flows into the gas channel 106.
  • a piston rod 109 and a second elastic element 110 are provided inside the fourth accommodating chamber 107.
  • the piston rod 109 can slide along the length direction of the fourth accommodating chamber 107.
  • the second elastic element 110 can provide an elastic force that causes the piston rod 109 to slide in a direction away from the self-locking hole 203 (i.e., the direction of arrow A in Figure 7).
  • the other end 111 of the gas channel 106 is connected to a part of the fourth accommodating chamber 107 away from the self-locking hole 203.
  • the high-pressure gas flowing in through the gas channel 106 can push the piston rod 109 to be inserted into the self-locking hole 203 of the pressure rod 200 after flowing into the fourth accommodating chamber 107 while overcoming the elastic force of the second elastic element 110, so as to lock the pressure rod 200 and prevent the staff from mistakenly opening the pressure rod when there is high-pressure gas in the gas bottle 500, thereby avoiding accidents.
  • the second elastic element 110 may be a spring, and the type of the second elastic element 110 is not limited thereto, and it may be any form in the prior art as long as it can achieve the above functions.
  • a gap between the piston portion of the piston rod 109 (the portion away from the self-locking hole 203) and the side wall of the fourth accommodating chamber 107, so that the high-pressure gas flowing in through the gas channel 106 can flow into the fourth accommodating chamber 107 away from the self-locking hole 203 through the gap.
  • a delay agent is injected into the gas channel 106 .
  • the delay agent allows the gas in the gas channel 106 to flow slowly into the fourth accommodating chamber 107, thereby reducing the pushing speed of the high-pressure gas on the piston rod 109, to prevent one end of the piston rod 109 from passing through the fourth accommodating chamber 107 before the pressure rod 200 is pressed down into place, thereby affecting the downward pressure of the pressure rod 200.
  • the time delay agent may be butter or damping grease, and the type of the time delay agent is not limited thereto, and it may be any form in the prior art as long as it can achieve the above-mentioned function. Butter can achieve the time delay function at low pressure, and damping grease can achieve the time delay function at high pressure.
  • the piston portion of the piston rod 109 (i.e., the portion away from the self-locking hole 203) is provided with a first groove 113, and the first groove 113 is an annular groove.
  • the gas and delay agent of the gas channel 106 enter the gap from the first groove 113, so that the force on the outer peripheral surface of the piston rod 109 is more uniform.
  • the piston portion of the piston rod 109 (ie, the portion away from the self-locking hole 203 ) is further provided with a second groove 118 , in which a sealing ring can be installed.
  • a cushion 413 is disposed on the lower surface of the bottle holder 400 .
  • the cushion 413 can reduce the friction between the lower surface of the bottle holder 400 and the base 100 and reduce scratches.
  • the material of the soft pad 413 may be nylon, and the type of material of the soft pad 413 is not limited thereto, and it may be any form in the prior art as long as it can achieve the above functions.
  • the side wall of the bottle holder 400 is provided with a boss 414.
  • the boss 414 can limit the bottle holder 400 in its width direction; on the other hand, the boss 414 is hidden in the first accommodating cavity 101 of the base 100, and even if wear marks are generated due to sliding, the wear marks will be generated in a position that is not easily visible to the user, so as to ensure the aesthetics of the entire device and help improve the user experience.
  • the side wall of the pressure rod 200 is provided with a locking groove 204, the locking groove 204 has a first guide surface 205 and a second guide surface 206, and a lock buckle 114 is provided on one side of the base 100, the bottom of the lock buckle 114 can be resetably installed to the base 100, and the top of the lock buckle 114 has a pin 119.
  • the first guide surface 205 of the locking groove 204 can push the pin 119, so that the pin 119 drives the lock buckle 114 to rotate around the bottom of the lock buckle 114, so that the pin 119 makes room so that the pin 119 can be inserted into the locking groove 204, thereby locking the pressure rod 200.
  • the staff directly pushes the top of the lock buckle 114 to make the lock buckle 114 rotate around its bottom, so that the pin 119 slides out of the locking groove 204 along the second guide surface 206, thereby unlocking the pressure rod 200.
  • the bottle holder 400 and the base 100 form a certain angle, and the second end 403 of the bottle holder 400 is above (i.e., outside) the first accommodating cavity 101 of the base 100, so that the gas bottle 500 can be directly loaded into the bottle holder 400 or replaced.
  • the magnet 412 in the connecting member 408 can position the gas bottle 500 to prevent the gas bottle 500 from shaking in the bottle holder 400.
  • the second end 202 of the pressing rod 200 is pressed downward, so that the pressing rod 200 rotates (that is, rotates downward) from the second position (i.e., the position of Figure 1) around the first end 102 of the base 100 in the second rotation direction (i.e., the clockwise direction in Figures 1 to 4), and drives the bottle holder 400 to rotate through the connecting rod 300.
  • the high-pressure gas in the gas bottle 500 flows into one end 108 of the gas channel 106 through the first pipeline and the second pipeline, and then flows into the gas channel 106.
  • the high-pressure gas flowing in through the gas channel 106 can push the piston rod 109 after flowing into the fourth accommodation chamber 107.
  • the self-locking hole 203 of the pressing rod 200 is inserted while overcoming the elastic force of the second elastic element 110 to lock the pressing rod 200 .
  • the remaining gas can be discharged through a pressure relief device (not shown in the figure). At this time, the gas bottle 500 needs to be replaced.
  • the pressure relief device discharges the residual gas, there is no high-pressure gas in the gas channel 106, and the compressed second elastic element 110 pushes the piston rod 109 to slide in the direction away from the self-locking hole 203 (i.e., the direction of arrow A in Figure 7), so that the piston rod 109 disengages from the self-locking hole 203, thereby releasing the locking of the piston rod 109 on the pressure rod 200.
  • the top of the lock buckle 114 is directly pushed to rotate the lock buckle 114 around its bottom, so that the pin 119 slides out of the locking groove 204 along the second guide surface 206, thereby unlocking the pressure rod 200.
  • the second end 202 of the pressure rod 200 is rotated upward, so that the pressure rod rotates (i.e., rotates upward) from the first position (i.e., the position in Figure 4) around the first end 102 of the base 100 in the first rotation direction (i.e., the counterclockwise direction in Figures 1 to 4), so as to drive the bottle holder 400 to move along the first guide portion 103 to the position of Figure 3 through the connecting rod 300.
  • the second guide portion 402 has slid to the end of the first guide portion 103 (the end close to the first end 102 of the base 100).
  • the pressure rod 200 will drive the bottle holder 400 to rotate in the first rotation direction (i.e., counterclockwise direction in Figures 1 to 4) around the second guide part 402 through the connecting rod 300 (i.e., rotate upward), thereby making the second end 403 of the bottle holder 400 leave the first accommodating cavity 101, that is, the bottle holder 400 forms a certain angle with the base 100, so that the gas bottle 500 can be replaced more conveniently.
  • first rotation direction i.e., counterclockwise direction in Figures 1 to 4
  • the connecting rod 300 i.e., rotate upward

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

La présente invention concerne un dispositif de ponction, comprenant : une base, munie d'une première cavité de réception pourvue d'une première partie de guidage et d'une aiguille de perforation ; une tige de pression, dont une première extrémité peut être reliée de manière pivotante à une première extrémité de la base ; une tige de liaison, dont une première extrémité peut être reliée de manière pivotante à la position de la tige de pression à proximité de la première extrémité de celle-ci ; et un siège de bouteille, dont une première extrémité est pourvue d'une seconde partie de guidage qui est reliée de façon mobile de manière pivotante à la première partie de guidage, et dont une seconde extrémité est reliée de manière pivotante à une seconde extrémité de la tige de liaison, la tige de pression pouvant entraîner, au moyen de la tige de liaison, le siège de bouteille pour se déplacer d'abord le long de la première partie de guidage et ensuite de tourner autour de la seconde partie de guidage dans une première direction de rotation de façon à amener la seconde extrémité du siège de bouteille à quitter la première cavité de réception ; et la tige de pression peut entraîner, au moyen de la tige de liaison, le siège de bouteille pour qu'il tourne d'abord autour de la seconde partie de guidage dans une seconde direction de rotation de façon à amener la seconde extrémité du siège de bouteille à entrer dans la première cavité de réception, puis à se déplacer le long de la première partie de guidage. La présente invention permet à un dispositif de ponction d'être monté et retiré de manière plus commode.
PCT/CN2023/109147 2022-10-31 2023-07-25 Dispositif de ponction WO2024093386A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211345644.5A CN115681806B (zh) 2022-10-31 2022-10-31 刺破装置
CN202211345644.5 2022-10-31

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CN115681806B (zh) * 2022-10-31 2023-12-19 江苏乐聚医药科技有限公司 刺破装置

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