CN111828689A

CN111828689A - Releasing device of pressure container

Info

Publication number: CN111828689A
Application number: CN202010685268.9A
Authority: CN
Inventors: 陈刚; 王国航; 栗国贝; 孙冰冰
Original assignee: Beijing Tianxinfu Medical Appliance Co Ltd
Current assignee: Beijing Tianxinfu Medical Appliance Co Ltd
Priority date: 2020-07-16
Filing date: 2020-07-16
Publication date: 2020-10-27
Anticipated expiration: 2040-07-16
Also published as: CN111828689B

Abstract

The application provides a pressure vessel release device, includes: an accommodating cylinder; one end of the accommodating barrel is provided with a pushing part, one end of the pushing part is positioned at the outer side of the accommodating barrel, and the other end of the pushing part is positioned in a cavity inside the accommodating barrel; the other end of the containing cylinder is provided with a puncture part, and the puncture part is provided with a through hole which enables the inner cavity of the containing cylinder to be communicated with the outside; the container opening of the pressure container faces the puncture part; the pushing part is connected with the puncturing part through a linkage mechanism and presses the pushing part, and the linkage mechanism pushes the puncturing part to move in the direction opposite to the pressing direction so as to puncture the container cover of the pressure container and enable the fluid in the pressure container to be released to the outer side of the containing cylinder through the through hole. The application provides a pressure vessel release, the security is higher, and one hand can be operated when using, and the design of spare part structural relationship in the holding section of thick bamboo makes pressure vessel's opening more laborsaving, and the controllability when the pressure release releases the fluid is strong, can also help reducing the fluid impact when releasing, and the bubble is littleer more even in the messenger exhaust fluid.

Description

Releasing device of pressure container

Technical Field

The application relates to the technical field of experimental devices, in particular to a device for releasing a pressure container for sealing fluid at high pressure.

Background

Tissue engineering materials can be used for repairing damaged parts of human bodies, but in actual use, the materials are often required to be trimmed or cut into required shapes and sizes, which brings inconvenience to operation, and meanwhile, the repairing materials cannot be utilized to the maximum extent. The tissue engineering material is made into the gel which is formed at present, the shape and the size of the tissue engineering material can be determined by an operator according to actual requirements when the gel is used, the use is convenient, and the time is saved.

At present, a rapidly formed collagen gel can be used as a tissue engineering material, but the collagen gel is sealed in a high-pressure small gas cylinder in a fluid form, the high-pressure small gas cylinder needs to be opened directly manually or by means of a tool before use, at the moment, the gel fluid flows out under the pressure, gas in the fluid expands into a large number of dense bubbles, and finally, formed foam is released into an open container such as a beaker. However, in the above operation, since the small cylinder has a small opening and a small cover, the operation is very inconvenient by hand or by common tools, and the pressure of the small cylinder is usually about six times of the standard atmospheric pressure, there is a risk of direct depressurization, and the release of the gel directly into an open container increases the exposure time of the material to the air environment.

The patent CN105107081A provides an injection device, which can be used to release and inject fluid sealed under high pressure, and the device of this solution is similar to a syringe structure, and a protrusion with a through hole is provided on its piston, when in use, the container cover of the pressure container is punctured by the protrusion, the fluid in the pressure container is released into the injection cavity of the injection device through the through hole, and then the fluid in the injection cavity is pushed out by the pressure container as a piston rod. However, the injection device has the following problems: 1. one end of the sleeve is open, and the protrusion part for puncturing is also towards the open end, so the container is still exposed to the external environment for a long time after the opening of the container is punctured, and is easy to be polluted, and once overflowing occurs, the overflowed fluid is also easy to be polluted and cannot be used, thereby causing unnecessary waste; 2. the pressure of the pressure container is relatively high, the pressure container and the first sleeve are not fixed, and a certain danger exists when the opening is directly punctured, for example, the pressure container and the first sleeve can be separated from each other by not continuously pressing the pressure container after puncturing; 3. in actual operation, the container cover of the pressure container is not easy to be punctured, so that the device needs to hold the first sleeve and the pressure container respectively by two hands and press the pressure container with force to puncture the container, which is very labor-consuming, and the piston for puncturing is movable, and the piston is easy to be pushed along the pressing direction together when the pressure container is pushed, so that the puncturing operation has certain difficulty and the operability is poor.

Disclosure of Invention

In order to solve the above problems, the present application provides a release device for a pressure vessel, which has high safety, effectively reduces exposure to a fluid, and is very labor-saving and easy to operate when used, wherein the pressure vessel has a vessel opening and a vessel cover for closing the vessel opening, and the pressure vessel contains a fluid. The release device includes:

the accommodating barrel is internally provided with a cavity; one end of the accommodating barrel is provided with a pushing part which can move along the axial direction of the accommodating barrel, one end of the pushing part is positioned at the outer side of the accommodating barrel, and the other end of the pushing part is positioned in a cavity inside the accommodating barrel; the other end of the accommodating cylinder is provided with a puncturing part which can move along the axial direction of the accommodating cylinder, and the puncturing part is provided with a through hole which enables the inner cavity of the accommodating cylinder to be communicated with the outer side; the pressure container is arranged between the pushing part and the puncturing part, and the container opening of the pressure container faces the puncturing part; the pushing portion is connected with the puncturing portion through a linkage mechanism and presses the pushing portion, the linkage mechanism pushes the puncturing portion to move in the direction opposite to the pressing direction so as to puncture a container cover of the pressure container, and fluid in the pressure container is released to the outer side of the containing barrel through the through hole.

In a preferred embodiment, the pressure vessel described herein may be a small high pressure cylinder for holding the collagen gel fluid at a pressure of 4 to 10 times the standard atmospheric pressure.

In a preferred embodiment, the accommodating cylinder is of a cylindrical structure, and when the through hole is closed, a closed environment is formed in the accommodating cylinder, and more preferably, the accommodating cylinder is provided with a cylinder cover which can be opened or closed so as to facilitate installation or removal of the pressure vessel.

According to the pressure container release device, the pressure container is placed in the closed containing cylinder and punctured inside the containing cylinder, on one hand, the built-in pressure container cannot be separated from the containing cylinder after being punctured, safety during release operation is improved, and compared with operation of directly pushing the pressure container, the mode that the pushing portion pushes the puncturing portion to perform reverse puncturing is adopted, so that an operator can better control the pushing portion to further realize slow puncturing pressure relief, and safety and operability are further improved; on the other hand, the containing cylinder has certain sealing performance, and even if the through hole overflows after being punctured, the overflowing foam fluid is still in the containing cylinder, so that the fluid is effectively prevented from being exposed and polluted for a long time.

It will be appreciated that the delivery device provided by the present application may also be adapted to release other high pressure gases and liquids that do not corrode the components of the delivery device, such as compressed air, compressed nitrogen, compressed cream, which are non-toxic to humans, and substances that are not harmful to the device but are dangerous to humans, such as butane, nitrous oxide, etc., where the arrangement of the pressure vessel inside may show further advantages.

It can be understood that, in the above device, since the through hole of the puncturing part is opened to the outside of the containing cylinder, when the puncturing part punctures the container cover at the opening of the pressure container, the through hole communicates the inside of the pressure container with the outside of the containing cylinder, and under the action of the pressure difference between the two sides, the pressure container is decompressed, so that the fluid sealed in the pressure container can be released to the outside of the containing cylinder through the through hole.

It will be appreciated that the fluid exiting the through-hole may be used directly or may be released into another relatively sealed container for use.

The pushing portion is located at one end of the outer side of the containing barrel, an operator can conveniently press the pushing portion, the end located at the inner side of the containing barrel is used for pushing the puncturing portion through the linkage mechanism, so that the puncturing portion can be actively lifted up under the action of externally applied pushing force to puncture a container cover of the pressure container, the mode of puncturing the pressure container is more labor-saving compared with the mode of directly pushing the pressure container, the containing barrel can be held by a single hand, and the operation performance is better.

In one embodiment, the pressure container is fixed after being installed in the accommodating cylinder, and at the moment, one end of the pushing part, which is positioned at the inner side of the accommodating cylinder, is only used for pushing the linkage mechanism, so that the fluid can be released only by lifting the puncture part to puncture the container cover of the pressure container; in another embodiment, the pressure container is still movably arranged in the accommodating cylinder, one end of the pushing part positioned at the inner side of the accommodating cylinder can also push the pressure container to move towards the puncture part along the axial direction, and at the moment, the pushing part simultaneously pushes the pressure container and the puncture part to move towards opposite directions, so that labor is further saved, and the operability of releasing the pressure container is improved.

Further, the linkage mechanism comprises a connecting rod extending along the axial direction of the accommodating cylinder and a lever component positioned at the bottom of the puncture part, wherein the lever component comprises a lever shaft and a lever arm taking the lever shaft as a fulcrum, and the lever arm is provided with a power end and a resistance end which are opposite; one end of the connecting rod is connected with the pushing part, the other end of the connecting rod is connected with the power end of the lever arm, and the connecting rod drives the power end to rotate so that the resistance end acts on the puncture part and the puncture part moves.

Because the pushing part and the puncture part are respectively positioned at the two ends of the containing barrel and the space of the inner cavity of the containing barrel is limited, the linkage mechanism is designed into the arrangement of the connecting rod and the lever component, so that the space can be effectively saved, and the structure compactness of the device is improved. In addition, the thrust exerted from the outside can be transmitted to the power end of the lever arm through the connecting rod and then acts on the puncture part through the resistance end, so that the effect of enabling the puncture part to move in the direction opposite to the thrust direction is achieved.

Preferably, the pushing portion has a piston block at an end inside the accommodating cylinder, and the connecting rod is preferably fixedly connected to the piston block at a position near an edge of the piston block.

Preferably, the connecting rod is hinged with the lever arm at the power end, and more preferably, the end of the connecting rod hinged with the lever arm can be a spherical hinged shaft or a joint bearing is adopted.

Further, the distance from the power end to the lever shaft is larger than the distance from the resistance end to the lever shaft. The lever assembly arranged in this way forms a labor-saving lever, and although whether the lever assembly can be punctured or not is related to the acting force between the puncturing part and the container cover, obviously under the condition that the lever assembly forms a longer force arm, the puncturing part can be lifted by pushing operation in a state of smaller acting force, and then the purpose of saving labor is achieved.

Furthermore, the lever assembly is at least provided with two lever arms, and the resistance ends of the at least two lever arms are symmetrically arranged at the bottom of the puncture part. Therefore, the stress distribution of the puncturing part is uniform, and the situation that only one side of the puncturing part is lifted and cannot be aligned with the container opening of the pressure container is avoided.

Furthermore, the resistance end is provided with a support column, and the end face of the support column acting on the puncture part is spherical.

Preferably, the top of the supporting column can be provided with a supporting ball. The supporting column can properly shorten the height of the resistance end of the lever arm to be lifted, reduce the operation difficulty, and the spherical end surface can have better adaptability with the bottom surface of the puncture part. In a preferred embodiment, the bottom surface of the puncturing part may also be provided with a groove or a sliding groove, for example a spherical groove, adapted to the spherical end surface of the supporting column. When the resistance end is lifted, the support column is driven to move in the horizontal direction, and the spherical groove and the support small ball can form a structure similar to a joint bearing, namely, the horizontal movement is counteracted and the vertical movement is kept through the rotation of the support small ball in the spherical groove; or a slideway-shaped groove extending in the horizontal direction is arranged, so that the movement of the supporting small ball in the horizontal direction caused by lifting can be limited.

It can be understood that the sizes of the pushing portion, the linkage mechanism and the puncturing portion, and the initial position of the lever arm before rotation are all sufficient to raise the puncturing portion to the height of puncturing the container cover of the pressure container, and those skilled in the art can appropriately adjust the size, position and other parameters of each component while achieving the above-mentioned effects.

Furthermore, the puncture part is provided with a protruded puncture needle tube, the through hole is formed at the puncture needle tube, and the head part of the puncture needle tube adopts an elastic anti-slip head.

The puncture needle tube is preferably a sharp tubular structure matched with the opening of the pressure container so as to be convenient for puncturing the opening of the pressure container, and the elastic anti-slip head at the head of the puncture needle tube can completely enter the interior of the pressure container after puncturing the opening of the pressure container, so that the puncture part is prevented from being broken and separated when the pressure container is decompressed.

Preferably, the puncturing part can be a pricking pin disk provided with a pricking pin tube in the middle, and the lever assembly is arranged at the bottom of the pricking pin disk.

Furthermore, one end of the containing cylinder, which is provided with the puncture part, is also provided with an overflow channel for communicating the inner cavity and the outer side of the containing cylinder, so that once overflow occurs at the through hole, the overflowed fluid foam can also flow out of the containing cylinder through the overflow channel. Preferably, the end of the receiving cylinder provided with the puncture part is conical.

The fluid container further comprises a sleeve, the accommodating cylinder is sleeved in the sleeve and can move in the sleeve, a space is reserved between one end, provided with the puncture part, of the accommodating cylinder and the sleeve to form a fluid containing cavity, and a discharge port is formed in one end, located in the fluid containing cavity, of the sleeve.

The arrangement of the fluid containing cavity in the sleeve is equivalent to that the space for storing fluid under normal pressure is added for the containing cylinder. When the pressure container is used, the containing cylinder is similar to a piston in the sleeve, and the fluid in the fluid containing cavity can be discharged through the discharge port by pushing the sleeve.

Furthermore, a porous slow-release plate is arranged in the fluid containing cavity, so that fluid entering the fluid containing cavity through the through holes firstly hits the slow-release plate, impact on the sleeve during pressure relief is further reduced, and the porous structure on the slow-release plate is also helpful for enabling bubbles in the fluid foam to be smaller and more uniform.

In one embodiment, the sustained-release plate can be a plane plate with a plurality of holes on the surface, and the holes can be square holes or round holes; in another embodiment, the slow release plate may also be a screen.

Furthermore, one end of the pushing part, which is positioned outside the containing barrel, is provided with a primary button and a secondary button which are arranged along the axial direction of the containing barrel, the primary button is used for pushing the puncture part to move, and the primary button and the secondary button are used for pushing the containing barrel to move; and/or a handle is arranged on the outer side wall of the sleeve.

The release device with the above arrangement is suitable for one-handed operation. Optionally, the device may be shaped like a pipette, which is more suitable for experimental operation habits of experimenters or doctors. When the pressure container is used, the hand is held at the handle, the thumb pushes the primary button to enable the puncture part to release the fluid in the pressure container, then the primary button is continuously pushed to the secondary button, and the accommodating barrel is pushed together with the secondary button, so that the fluid in the fluid accommodating cavity is discharged through the discharge port.

Further, the pressure vessel fixing device further comprises a fixing sleeve used for installing the pressure vessel, and the fixing sleeve is installed in the inner cavity of the accommodating cylinder in a matching mode so as to further fix the pressure vessel and improve safety.

Further, the cylinder walls of the accommodating cylinder and the sleeve are provided with openable cylinder covers so as to facilitate the installation of the pressure container.

The following beneficial effects can be brought through the application:

according to the pressure container release device, the pressure relief release and discharge functions of a pressure container such as a small high-pressure gas cylinder are integrally arranged, and the pressure container is arranged in the pressure container when the pressure container is opened, so that the safety is higher, and the fluid in the pressure container can be effectively prevented from being exposed to the outside for a long time; simultaneously, the pressure vessel release that this application provided can be handled by one hand when using, and the design of spare part structural relationship in the holding section of thick bamboo makes opening of pressure vessel more laborsaving, and the operability is good, and the controllability when pressure release fluid is strong, can also help reducing the fluid impact when releasing, and the bubble is littleer more even in the messenger exhaust fluid.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic diagram of an embodiment of a pressure vessel release apparatus;

FIG. 2 is a schematic structural diagram of a released state of a pressure vessel releasing device, wherein a is a schematic released state of the embodiment shown in FIG. 1, and b is a schematic released state of another embodiment;

FIG. 3 is a schematic structural view of yet another embodiment of a pressure vessel release apparatus;

FIG. 4 is an assembled view of the pressure vessel, the retaining sleeve, the puncturing portion, and the linkage mechanism;

FIG. 5 is a schematic view of the puncturing portion of FIG. 4, wherein c and d are two embodiments of the puncturing portion;

FIG. 6 is a schematic structural view of the linkage mechanism of FIG. 4;

FIG. 7 is a schematic view of the assembly of the pressure vessel in the sleeve;

in the figure: 1. a pressure vessel; 11. a container cover; 2. an accommodating cylinder; 21. mounting a column; 22. an overflow channel; 23. a secondary button; 3. a pushing part; 31. a primary button; 32. a push rod; 33. a piston block; 4. a piercing section; 41. a through hole; 42. a puncture needle tube; 43. a lancet disk; 44. an anti-slip head; 45. a groove; 5. a linkage mechanism; 51. a connecting rod; 52. a lever assembly; 521. a lever arm; 522. a lever shaft; 523. a support pillar; 6. fixing a sleeve; 7. a sleeve; 71. a fluid volume; 72. an outlet port; 73. a slow release plate; 74. a handle; 75. and (4) a cylinder cover.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and thus the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiment of the application provides a pressure vessel release, and this release operability is good, the security is high, can effectively reduce the fluid and expose to it is very laborsaving during the use. Wherein, the pressure container 1 has a container opening and a container cover 11 for closing the container opening, and the pressure container 1 is filled with fluid and sealed under high pressure. In one embodiment, the pressure vessel 1 may be a small high pressure gas cylinder for storing the collagen gel fluid, the pressure of which is 4 to 10 times the standard atmospheric pressure. It will be appreciated that the delivery device provided by the present application may also be adapted to release other high pressure gases and liquids that do not corrode the components of the delivery device, such as compressed air, compressed nitrogen, compressed cream, which are non-toxic to humans, and substances that are not harmful to the device but are dangerous to humans, such as butane, nitrous oxide, etc., where the arrangement of the pressure vessel inside may show further advantages.

As shown in fig. 1, the pressure vessel releasing device includes: the holding cylinder 2 may be a cylindrical structure, and has a cavity therein. Wherein, be equipped with pushing part 3 in the one end of holding section of thick bamboo 2, pushing part 3 includes catch bar 32 to the one end of catch bar 32 is equipped with one-level button 31, and the other end is equipped with piston block 33, and catch bar 32 vertically passes the section of thick bamboo wall of holding section of thick bamboo 2, so that one end of one-level button 31 is located the outside of holding section of thick bamboo 2, and the one end of piston 33 is located the inside cavity of holding section of thick bamboo 2, and pushing part 3 can be followed holding section of thick bamboo 2 axial displacement.

Meanwhile, the other end inside the accommodating tube 2 is provided with a puncture part 4, wherein the puncture part 4 is provided with a through hole 41 for communicating the inner cavity of the accommodating tube 2 with the outside, and the puncture part 4 can also move along the axial direction of the accommodating tube 2. As shown in FIG. 1, the bottom of the accommodating barrel 2 is provided with a hollow mounting column 21, the puncturing part 4 is a puncture needle disk 43 with a puncture needle tube 42 at the center, and the puncture needle disk 43 is placed in the mounting column 21 to limit and mount the puncture needle disk 43. Wherein the puncture needle tube 42 is a sharp tubular structure matching the opening of the pressure vessel 1 so as to be able to completely puncture the opening of the pressure vessel 1. The through hole 41 is formed at the puncture needle tube 42, the inner cavity of the accommodating cylinder 2 can be communicated with the external environment only through the through hole 41, and when the through hole 41 is closed, the closed environment is formed in the accommodating cylinder 2.

Wherein the pressure container 1 is mounted between the push portion 3 and the puncturing portion 4, and the container opening of the pressure container 1 is directed toward the puncturing portion 4, particularly directly opposite to the puncturing needle tube 42. Preferably, the pressure vessel 1 can be first installed in the fixing sleeve 6 for fixation, and then installed in the inner cavity of the accommodating cylinder 2 together with the fixing sleeve 6 in a matching manner, so as to further fix the pressure vessel 1 and improve safety. More preferably, the receiving cylinder 2 has a cylinder cover that can be opened or closed to facilitate installation or removal of the pressure vessel 1.

In the release device provided in the above embodiment, the pushing portion 3 is connected to the puncturing portion 4 through the link mechanism 5. Wherein, the linkage mechanism 5 comprises a connecting rod 51, wherein the connecting rod 51 extends along the axial direction of the accommodating cylinder 2, and one end of the connecting rod 51 is connected with the pushing part 3, preferably fixedly connected with the piston block 33 at the edge position close to the piston block 33. The linkage 5 further includes a lever assembly 52, wherein the lever assembly 52 is located at the bottom of the puncturing portion 4, preferably at the bottom of the lancet disk 43. The lever assembly 52 includes a lever shaft 522 and a lever arm 521 using the lever shaft 522 as a fulcrum, the lever arm 521 has a power end and a resistance end opposite to each other, wherein the power end of the lever arm 521 is connected to one end of the connecting rod 51 close to the lever assembly 52, and the resistance end of the lever arm 521 is used for interacting with the puncturing part 4, preferably, the connecting rod 51 can drive the power end to rotate so that the resistance end acts on the puncturing part 4, and then the puncturing part 4 moves, and more preferably, the resistance end of the lever arm 521 can lift the puncturing disc 43, and then the puncturing needle tube 42 moves upward along the axial direction of the accommodating tube 2.

With reference to fig. 1, the distance from the power end to the lever shaft 522 is greater than the distance from the resistance end to the lever shaft 522, and the lever assembly thus configured constitutes a labor-saving lever, and even though the puncture is related to the acting force between the puncture part 4 and the container cover 11, it is obvious that the lever assembly constitutes a longer arm of force, so that the puncture part 4 can be lifted by pushing with a smaller acting force, thereby achieving the purpose of saving labor.

Wherein the connecting rod 51 is hinged with the lever arm 521 at the power end, preferably, the end of the connecting rod 51 hinged with the lever arm 521 can be a spherical hinged shaft, or a joint bearing is adopted, so that the relative movement of the connecting rod 51 and the lever arm 521 is more flexible. And, the resistance end of the lever arm 521 is further provided with a support column 523, the end surface of the support column 523 acting on the puncturing part 4 is spherical, preferably, the top of the support column 523 is provided with a small sphere, that is, a support small sphere.

The supporting column 523 can appropriately shorten the height of the resistance end of the lever arm 521 to be lifted, so as to reduce the operation difficulty, and the spherical end surface can have better adaptability with the bottom surface of the puncture part 4. More preferably, the bottom surface of the lancet disk 43 may also be provided with grooves or runners that fit into the spherical end surfaces of the support column 523.

As shown in fig. 2, which is a schematic view of the release state of the release device, when the pushing portion 3 is pressed, the linkage mechanism 5 can drive the puncturing portion 4 to move in a direction opposite to the pressing direction, and finally puncture the container lid 11 of the pressure container 1, so that the fluid in the pressure container 1 is released to the outside of the accommodating cylinder 2 through the through hole 41. Wherein, the one end that the promotion portion 3 is located the holding section of thick bamboo 2 outside can be convenient for the operator to press the operation, the one end that is located the inside of holding section of thick bamboo 2 is used for promoting puncturing portion 4 through link gear 5, so that puncturing portion 4 can lift up and then puncture pressure vessel 1's container lid 11 "initiatively" under the thrust effect of externally exerting, compare in promoting pressure vessel 1 and then the mode of puncturing more laborsaving, and the holding section of thick bamboo 2 of singlehanded holding can be operated, the speed and the dynamics of control promotion can also realize controlling pressure vessel slow pressure release when promoting, controllability and operability are better.

As shown in FIG. 2a, when the release operation is performed, the primary button 31 is pressed, the push rod 32 pushes the piston 33 and drives the connecting rod 51 to move downward along the axial direction of the accommodating cylinder, so as to push the power end of the lever arm 521 to move downward, and the other end of the lever arm 521, i.e. the resistance end, moves upward, so as to push the lancet disk 43 to move upward, so that the lancet tube 42 finally pierces the container cover 11 of the pressure container 1 to enter the interior of the pressure container 1, and the fluid in the pressure container 1 is released through the through hole 41. Preferably, at least two lever assemblies 52 are provided, as shown in fig. 2b, the power ends of the two lever assemblies 52 are both provided with the connecting rods 51, and the resistance ends of the two lever arms 521 are symmetrically arranged at the bottom of the puncturing part 4, so that the force distribution of the puncturing part 4 is relatively uniform, and the situation that only one side of the puncturing part 4 is lifted and deviates from the container opening of the pressure container 1 is avoided.

In one embodiment, the pressure vessel 1 is fixed after being installed in the accommodating cylinder 2, and at this time, one end of the pushing part 3 located inside the accommodating cylinder 2 is only used for pushing the linkage mechanism 5, so that the fluid can be released only by lifting the puncturing part 3 to puncture the vessel cover 11 of the pressure vessel 1; in another embodiment, the pressure container 1 is still movable when being installed in the accommodating cylinder 2, one end of the pushing part 3 located inside the accommodating cylinder 2 can also push the pressure container 1 to move in the axial direction towards the puncturing part 4, and at this time, the pushing part 3 simultaneously pushes the pressure container 1 and the puncturing part 4 to move in opposite directions, so that labor is further saved, and the operability of releasing the pressure container 1 is improved.

It should be understood that the drawings are only schematic structural views, and the specific dimensions or relative proportions of the pushing portion 3, the linkage mechanism 5 and the puncturing portion 4, and the initial position of the lever arm 521 before rotation are satisfied to raise the puncturing portion 4 to the height of the container cover 11 on the puncturing pressure container 1, and those skilled in the art can adjust the dimensions, positions and other parameters of the components appropriately to achieve the above-mentioned effects.

In a preferred embodiment, the head of the puncture needle tube 42 is provided with an elastic anti-slip head 44, so that the anti-slip head 44 can enter the pressure container 1 after the puncture needle tube 42 punctures the opening of the pressure container 1, and the puncture part 4 is prevented from being broken and separated when the pressure container 1 is decompressed.

Because the pushing part 3 and the puncturing part 4 are respectively positioned at two ends of the accommodating cylinder 2 and the space of the inner cavity of the accommodating cylinder 2 is limited, the linkage mechanism 5 is designed into the arrangement of the connecting rod 51 and the lever assembly 52, so that the space can be effectively saved, and the structure compactness of the device is improved. In addition, the pushing force applied from the outside can be transmitted to the power end of the lever arm 521 through the connecting rod 51, and then acts on the puncturing part 4 through the resistance end, so as to achieve the effect of moving the puncturing part 4 in the direction opposite to the pushing force direction. Meanwhile, the pressure container is placed in the closed accommodating cylinder 2 and is punctured inside the accommodating cylinder 2, on one hand, the built-in pressure container 1 cannot be separated from the accommodating cylinder 2 after being punctured, so that the safety during releasing operation is improved, and compared with the operation of directly pushing the pressure container 1, the mode of pushing the puncturing part 4 to perform reverse puncturing through the pushing part 3 enables an operator to better control the pushing part 3 so as to realize slow puncturing and pressure relief, so that the safety and operability are further improved; on the other hand, the accommodating cylinder 2 has certain sealing performance, and even if the through hole 41 overflows after being punctured, the overflowing foam fluid still exists in the accommodating cylinder 2, so that the fluid is effectively prevented from being exposed and polluted for a long time.

It can be understood that, in the above-mentioned device, since the through hole 41 of the puncturing part 4 is opened to the outside of the accommodating cylinder 2, when the puncturing part 3 punctures the container cover 11 at the opening of the pressure container 1, the through hole 41 communicates the inside of the pressure container 1 with the outside of the accommodating cylinder 2, and under the effect of the pressure difference between the two sides, the pressure container 1 is decompressed, so that the fluid sealed in the inside can be released to the outside of the accommodating cylinder 2 through the through hole 41.

In one embodiment, the fluid flowing out of the through hole 41 may be used directly or may be released into another relatively sealed container for use.

As shown in fig. 3, in a preferred embodiment, the releasing device further includes a sleeve 7, the accommodating cylinder 2 is sleeved in the sleeve 7 and can move in the sleeve 7, a space is provided between one end of the accommodating cylinder 2 provided with the puncture part 4 and the sleeve 7 to form a fluid cavity 71, and one end of the sleeve 7 located at the fluid cavity 71 is provided with a discharge port 72. The arrangement of the fluid cavity 71 in the sleeve 7 is equivalent to that a space for storing fluid under normal pressure is added to the accommodating cylinder 2, when the fluid in the pressure container 1 flows out through the through hole 41, the fluid directly enters the fluid cavity 71, and when the pressure container is used, the accommodating cylinder 2 is similar to a piston in the sleeve 7, and the fluid in the fluid cavity 71 can be discharged through the discharge port 72 by pushing the sleeve 7. Alternatively, the discharge opening 72 may be closed before discharge, and the discharge opening 72 may be opened when the accommodation tube 2 is pushed.

Wherein, the one end that a holding section of thick bamboo 2 was equipped with puncture portion 4 still is equipped with the overflow passageway 22 of intercommunication holding section of thick bamboo 2 inner chamber and outside to in case take place the overflow at perforating hole 41 department, the fluid foam of overflow outflow can also flow into three-dimensional appearance chamber 71 through overflow passageway 22, has improved fluid utilization ratio, effectively avoids polluting and extravagant, and when a holding section of thick bamboo 2 used alone, can also have the fluid to spill over through overflow passageway 22 and judge whether the overflow has appeared in a holding section of thick bamboo 2. More preferably, the end of the receiving cylinder 2 where the puncturing part 4 is provided may be tapered to allow the overflowed fluid to more rapidly flow out through the overflow path 22.

The porous slow-release plate 73 is arranged in the fluid cavity 71, so that fluid entering the fluid cavity 71 through the through hole 41 firstly hits the slow-release plate 73, impact on the sleeve 7 during pressure relief is effectively reduced, slow release of the fluid is further controlled in an assisting manner, and the porous structure on the slow-release plate 73 is also helpful for enabling the size of bubbles in the fluid foam to be more uniform. In one embodiment, the slow release plate 73 may be a flat plate with a plurality of holes on the surface, and the holes may be square holes or round holes; in another embodiment, the slow release plate 73 may also be a screen. Optionally, the slow release plate 73 may also be movable in the fluid cavity 71, so as to completely discharge the fluid in the fluid cavity 71 when pushing the accommodating barrel 2, and after the fluid is completely discharged, the accommodating barrel may be pulled back upward, and at this time, a return member such as a spring may be disposed at the bottom of the slow release plate 73, or a thin rod may be used to push the slow release plate 73 back to the original position from the discharge port 72.

With reference to fig. 3, the pushing portion 3 further has a secondary button 23 disposed along the axial direction of the accommodating cylinder 2 at an end outside the accommodating cylinder 2, and the push rod 32 passes through the secondary button 23 longitudinally, so that the secondary button 23 is located closer to the accommodating cylinder 2 than the primary button 31. It will be appreciated that the secondary button 23 should be sized larger than the primary button 31. Preferably, the secondary button 23 is fixedly arranged on the outer side of the receiving cylinder 2. The primary button 31 can push the puncturing part 4 to move finally, and after pushing to the position of the secondary button 23, the primary button pushes the accommodating barrel 2 to move together with the secondary button 23. Also, the outer side wall of the sleeve 7 is provided with a handle 74, the release device thus provided being suitable for one-handed operation. In use, the hand is held at the handle 74, the thumb pushes the primary button 31 to release the fluid in the pressure container 1 into the fluid chamber 71, and then pushes the primary button 31 to the secondary button 23, and then pushes the accommodating barrel 2 together with the secondary button 23, so as to discharge the fluid in the fluid chamber 71 through the discharge port 72.

Alternatively, the device may be in the shape similar to a pipette, which is more suitable for the operation habit of experimenters or doctors, and the specific shape design of the internal structure of the device should be matched with the existing pressure vessel, such as the matching assembly with a high-pressure small gas bottle, and the device may also be matched with the existing experimental equipment to adapt to the operation of the conventional experimental means.

Fig. 4-7 are perspective views showing the components of the release device in practical application, and fig. 4 is an assembly schematic view showing the pressure vessel 1, the fixing sleeve 6, the linkage mechanism 5 and the puncturing part 4 inside the accommodating cylinder 2, wherein a spring may be further disposed between the pressure vessel 1 and the fixing sleeve 6 for better mounting and fixing the pressure vessel 1, and optionally, a spring may be further disposed at the bottom of the power end of the lever arm 521, so that the power end can be automatically reset after moving. As shown in fig. 5-6, which are enlarged views of the puncturing portion 4 and the linkage mechanism 5, respectively, wherein the puncturing portion 4 is located at the middle of the two lever assemblies 52 when assembled, and in one embodiment, the bottom surface of the puncturing portion 4 is provided with a groove 45 adapted to support a ball, such as a spherical groove, as shown in fig. 5 c. When the resistance end of the lever arm 521 is lifted, the support column 523 is driven to move in the horizontal direction, and at the moment, the spherical groove and the support small ball can form a structure similar to a joint bearing, namely, the horizontal movement is counteracted and the vertical movement is kept through the rotation of the support small ball in the spherical groove; or a slide way-shaped groove extending in the horizontal direction is provided, as shown in fig. 5d, the slide way-shaped groove can limit the movement of the support ball in the horizontal direction caused by lifting. As shown in fig. 7, the wall of the sleeve 7 has an openable cover 75 to facilitate the installation of the pressure vessel 1, and preferably, the cover 75 may be common to both the sleeve 7 and the receiving cylinder 2.

In one embodiment, the method of using the release device for a pressure vessel is as follows:

firstly, the pressure container 1 is fixedly arranged in the fixed sleeve 6, the cylinder cover 75 is opened, the fixed sleeve 6 provided with the pressure container 1 is arranged in the accommodating cylinder 2, the opening of the pressure container 1 is towards the head part of the puncture needle tube 42, and the cylinder cover 75 is covered.

The hand is held at the handle 74, so that the thumb just touches the primary button 31, the push rod 32 moves axially by pressing the primary button 31, and the pressing speed is controlled to make the puncture needle disk 43 move slowly until the puncture needle tube 42 completely punctures into the pressure container 1, under the action of the internal and external pressure difference of the pressure container 1, the fluid in the pressure container 1 enters the fluid cavity 71 through the through hole 41 and flows through the slow release plate 73 to reduce the flow rate significantly, and the air bubbles are finer.

The primary button 31 is pushed to the secondary button 23 without changing the posture, and the accommodating barrel 2 is pushed together with the secondary button 23, so that the fluid released into the fluid cavity 71 is discharged through the discharge port 72 for direct use.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A release mechanism for a pressure vessel having a vessel opening and a vessel lid closing the vessel opening, the pressure vessel containing a fluid, the release mechanism comprising:

the accommodating barrel is internally provided with a cavity;

one end of the accommodating barrel is provided with a pushing part which can move along the axial direction of the accommodating barrel, one end of the pushing part is positioned outside the accommodating barrel, the other end of the pushing part is positioned in a cavity inside the accommodating barrel, and one end of the pushing part positioned outside the accommodating barrel is provided with a primary button for pushing the puncture part to move; the other end of the accommodating cylinder is provided with a puncturing part which can move along the axial direction of the accommodating cylinder, and the puncturing part is provided with a through hole which enables the inner cavity of the accommodating cylinder to be communicated with the outer side; the pressure container is arranged between the pushing part and the puncturing part, and the container opening of the pressure container faces the puncturing part;

the pushing portion is connected with the puncturing portion through a linkage mechanism and presses the pushing portion, the linkage mechanism pushes the puncturing portion to move in the direction opposite to the pressing direction so as to puncture a container cover of the pressure container, and fluid in the pressure container is released to the outer side of the containing barrel through the through hole.

2. The release device of claim 1, wherein the linkage mechanism includes a linkage rod extending axially along the receiving cylinder, and a lever assembly at the bottom of the puncturing portion, the lever assembly including a lever shaft and a lever arm pivoted to the lever shaft, the lever arm having opposite power and resistance ends;

one end of the connecting rod is connected with the pushing part, and the other end of the connecting rod is connected with the power end of the lever arm; the connecting rod drives the power end to rotate so that the resistance end acts on the puncture part and further the puncture part moves.

3. The release device of claim 2, wherein the distance from the power end to the lever axis is greater than the distance from the resistance end to the lever axis.

4. The release device of claim 2, wherein the lever assembly is provided in at least two, and the resistance ends of the at least two lever arms are symmetrically disposed at the bottom of the puncturing portion; and/or the resistance end is provided with a support column, and the end surface of the support column acting on the puncture part is spherical.

5. The releasing device as set forth in claim 1, wherein said piercing part has a piercing needle tube protruded therefrom, said penetration hole being formed at said piercing needle tube, and a head of said piercing needle tube is an elastic slip-proof head.

6. The release device of claim 1, wherein the end of the receiving cylinder having the puncture portion is further provided with an overflow passage for communicating the inner cavity of the receiving cylinder with the outside.

7. The release device of any one of claims 1 to 6, further comprising a sleeve, wherein the receiving cylinder is sleeved in the sleeve and is movable in the sleeve, a space is provided between one end of the receiving cylinder provided with the puncture part and the sleeve to form a fluid cavity, and a discharge port is provided at one end of the sleeve positioned in the fluid cavity.

8. A delivery device according to claim 7, wherein a porous release plate is provided within the fluid volume chamber.

9. The releasing device of claim 7, wherein the end of the pushing part located outside the accommodating barrel is provided with a secondary button arranged along the axial direction of the accommodating barrel, and the primary button and the secondary button are used for pushing the accommodating barrel to move; and/or a handle is arranged on the outer side wall of the sleeve.

10. The release device of claim 7, further comprising a retaining sleeve for mounting the pressure vessel, said retaining sleeve being fittingly mounted within the interior cavity of the containment cylinder; and/or the cylinder walls of the accommodating cylinder and the sleeve are provided with openable cylinder covers.