CN115681806B

CN115681806B - Puncturing device

Info

Publication number: CN115681806B
Application number: CN202211345644.5A
Authority: CN
Inventors: 于跃; 杨俊盛
Original assignee: Jiangsu Leju Pharmaceutical Technology Co ltd
Current assignee: Jiangsu Leju Pharmaceutical Technology Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-12-19
Anticipated expiration: 2042-10-31
Also published as: CN115681806A; WO2024093386A1

Abstract

The invention relates to a puncturing device, comprising a base, a first guide part and a puncturing needle, wherein the base is provided with a first accommodating cavity; a compression lever having a first end pivotally connected to the first end of the base; a link having a first end pivotally connected to the strut at a location proximate the first end of the strut; a bottle holder, the first end of which is provided with a second guide portion, the second guide portion being pivotably and movably connected to the first guide portion, the second end of the bottle holder being pivotably connected to the second end of the link; the pressure lever can drive the bottle seat to move along the first guide part and then rotate around the second guide part in the first rotating direction through the connecting rod, so that the second end of the bottle seat leaves the first accommodating cavity; the pressure lever can drive the bottle seat to rotate around the second guide part in the second rotation direction through the connecting rod, so that the second end of the bottle seat enters the first accommodating cavity and then moves along the first guide part. The invention can more conveniently realize the installation and the disassembly of the device to be punctured.

Description

Puncturing device

Technical Field

The invention relates to a device for puncturing a container, in particular to a puncturing device capable of puncturing a small-sized high-pressure gas bottle.

Background

The small-sized high-pressure gas bottle is a device for storing high-pressure gas, is widely applied to the fields of automobiles, chemical industry, fire protection, medical treatment, food and the like, and has one of functions of providing stable pushing force for other devices, such as a needleless injector, by releasing the high-pressure gas.

When the device is used, the device is connected with the small high-pressure gas bottle, and the small high-pressure gas bottle is pierced by the piercing device so as to release the high-pressure gas in the small high-pressure gas bottle.

The installation and the disassembly between the existing puncturing device and the small-sized high-pressure gas bottle are complicated, and further improvement needs to be achieved.

The information disclosed in the background section of the invention is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a puncturing device, which can more conveniently realize the installation and the disassembly of a device to be punctured, which is filled with high-pressure gas.

In order to solve the above problems, the present invention provides a lancing device, comprising a chassis having a first accommodation chamber opening upward, a first guide part being provided at a position of a sidewall of the first accommodation chamber near a first end of the chassis, and a lancet being provided at a second end of the chassis; a compression lever having a first end pivotably connected to the first end of the base; a link having a first end pivotally connected to the strut at a location proximate the first end of the strut; a bottle holder, a first end of which is provided with a second guide portion pivotably and movably connected to the first guide portion, a second end of which is pivotably connected to a second end of the link; when the pressure lever rotates from the first position to the second position around the first end of the base in the first rotating direction, the pressure lever drives the bottle seat to move along the first guide part through the connecting rod and then rotate around the second guide part in the first rotating direction, so that the second end of the bottle seat leaves the first accommodating cavity; when the pressure lever rotates from the second position to the first position in the second rotation direction around the first end of the base, the pressure lever drives the bottle seat to rotate around the second guide part in the second rotation direction through the connecting rod, so that the second end of the bottle seat enters the first accommodating cavity and then moves along the first guide part.

Preferably, the bottle seat is provided with a second accommodating cavity and a third accommodating cavity which is opened at the second end of the bottle seat, the second accommodating cavity and the third accommodating cavity are distributed along the length direction of the bottle seat, and an elastic assembly is arranged in the second accommodating cavity and can provide elastic bias for the device to be punctured in the third accommodating cavity.

Preferably, an annular stop is arranged between the second accommodating cavity and the third accommodating cavity; the elastic component includes connecting piece and first elastic element, and first elastic element's first end is supported and is stopped on the diapire of second holding the chamber, and first elastic element's second end is supported and is stopped on the connecting piece, the one end that is close to first elastic element of connecting piece is provided with radial extension's extension, the external diameter of extension is greater than the internal diameter of annular backstop portion, and extension is located in the second holds the intracavity, the one end that keeps away from first elastic element of connecting piece passes behind the annular backstop portion and inserts the third holds the chamber, and can contact wait to puncture the device.

Preferably, a mounting groove is formed in one side of the connecting piece, which faces the third accommodating cavity, and a magnet is arranged in the mounting groove.

Preferably, the second end of the pressure bar is provided with a self-locking hole, and the second end of the base is provided with: a gas passage having one end capable of communicating to a high pressure gas source originating from the device to be pierced; and a fourth accommodation chamber in which a piston rod and a second elastic member are provided, the piston rod being capable of sliding along a length direction of the fourth accommodation chamber, the second elastic member being capable of providing an elastic force that causes the piston rod to slide in a direction away from the self-locking hole, the other end of the gas passage being communicated to a portion of the fourth accommodation chamber away from the self-locking hole; the high pressure gas flowing in through the gas passage or the pressure-regulated high pressure gas can push the piston rod to be inserted into the self-locking hole of the pressing rod while overcoming the elastic force of the second elastic element after flowing into the fourth accommodating cavity.

Preferably, the puncture needle is internally provided with a gas communication channel, and the second end of the base is provided with a first connection port which is communicated with the gas communication channel.

Preferably, a gap exists between the piston part of the piston rod and the side wall of the fourth accommodating cavity, so that the high-pressure gas flowing in through the gas channel or the pressure-regulated high-pressure gas can flow into one end of the fourth accommodating cavity far away from the self-locking hole through the gap, and the gas channel is injected with the delay agent.

Preferably, the side wall of the second end of the base is provided with a second connection port, and the gas channel is communicated with a high-pressure gas source from the device to be pierced through the second connection port.

Preferably, 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.

Preferably, a soft cushion is arranged on the lower surface of the bottle seat, and a boss is arranged on the side wall of the bottle seat.

According to the puncturing device, under the cooperation of the first guide part and the second guide part, the second end of the bottle seat is driven by the pressure rod and the connecting rod to enter or leave the first accommodating cavity of the base, so that the device to be punctured filled with high-pressure gas can be conveniently installed and detached.

Furthermore, the invention adds the first elastic element and the connecting piece, so that the whole puncturing device can adapt to gas bottles with different lengths.

Furthermore, the invention is provided with the gas channel, the fourth accommodating cavity and the piston rod and the second elastic element in the fourth accommodating cavity, and can lock the pressure rod when high-pressure gas is still in the device to be punctured, so as to prevent the pressure rod from being opened by misoperation of staff and avoid danger.

The method and apparatus of the present invention have other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following embodiments, which are incorporated herein, and which together serve to explain the particular principles of the invention.

Drawings

FIG. 1 shows a schematic view of the operation of a lancing device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 shows a schematic second operational state of the lancing device according to an embodiment of the present invention;

FIG. 4 illustrates a schematic third operational state of a lancing device according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of the bottle holder;

FIG. 6 is a cross-sectional view of the connector;

FIG. 7 is a cross-sectional view of FIG. 4;

FIG. 8 is a schematic perspective view of a bottle holder;

FIG. 9 is an enlarged view of a portion of FIG. 2;

FIG. 10 is a schematic view of the lancing device in FIG. 3 from another perspective;

FIG. 11 is a schematic view of the lancing device in FIG. 1 from another perspective;

fig. 12 is a schematic view of the working principle of the piston rod, which illustrates a state in which the piston rod is not pushed by the high-pressure gas;

fig. 13 is a second schematic diagram of the working principle of the piston rod, which illustrates a state in which the piston rod is pushed by high-pressure gas.

It should be understood that the drawings are not necessarily to scale, presenting a simplified representation of various features illustrative of the basic principles of the invention. The particular design features disclosed herein (including, for example, particular dimensions, orientations, locations, and shapes) will be determined in part by the particular application and environment in which they are to be used.

In the drawings, like numerals refer to the same or equivalent parts of the invention throughout the several views of the drawings.

Detailed Description

Reference will now be made in detail to various embodiments of the invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with the exemplary embodiments, it will be understood that the present description is not intended to limit the invention to these exemplary embodiments. On the contrary, the invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention as defined by the appended claims.

A lancing device according to an embodiment of the present invention is described below with reference to fig. 1 to 13.

As shown in fig. 1, the lancing device according to the embodiment of the present invention includes: base 100, plunger 200, linkage 300, and bottle holder 400.

The base 100 has an upwardly open first receiving cavity 101, a first guide 103 is provided on a side wall of the first receiving cavity 101 near a first end 102 of the base 100, and a second end 104 of the base 100 is provided with a spike 105 (see fig. 2 for cooperation).

The first end 201 of the plunger 200 is pivotally connected to the first end 102 of the base 100.

The first end 301 of the linkage 300 is pivotally connected to the plunger 200 at a location proximate to the first end 201 of the plunger 200.

The first end 401 of the vial holder 400 is provided with a second guide 402, the second guide 402 being pivotably and movably connected to the first guide 103, the second end 403 of the vial holder 400 being pivotably connected to the second end 302 of the linkage 300. The bottle holder 400 is used for mounting a device to be pierced with high pressure gas. For example, the device to be pierced may be a gas bottle 500 containing high pressure carbon dioxide, and in the latter embodiment, the device to be pierced is described by taking the gas bottle 500 as an example.

Wherein, when the pressing lever 200 rotates from the first position (i.e., the position of fig. 4) to the second position (i.e., the position of fig. 1) in the first rotation direction (i.e., the counterclockwise direction in fig. 1 to 4) around the first end 102 of the base 100, the pressing lever 200 drives the bottle holder 400 to move along the first guide 103 by the link 300 and then rotate (i.e., rotate upward) around the second guide 402 in the first rotation direction (i.e., the counterclockwise direction in fig. 1 to 4) such that the second end 403 of the bottle holder 400 leaves the first receiving chamber 101.

When the pressing lever 200 rotates in a second rotational direction (i.e., clockwise in fig. 1 to 4) about the first end 102 of the base 100 from the second position (i.e., the position of fig. 1) to the first position (i.e., the position of fig. 4), the pressing lever 200 rotates (i.e., rotates downward) about the second guide 402 in the second rotational direction (i.e., clockwise in fig. 1 to 4) by the link 300, so that the second end 403 of the bottle holder 400 enters the first receiving chamber 101 and then moves along the first guide 103.

In the invention, under the cooperation of the first guide part 103 and the second guide part 402, the second end 403 of the bottle seat 400 is driven by the compression bar 200 and the connecting rod 300 to enter or leave the first accommodating cavity 101 of the base 100, so that the device to be punctured filled with high-pressure gas can be conveniently installed and disassembled.

The second end 104 of the base 100 is provided with a first connection port 115 (see fig. 2 for a fitting), the first connection port 115 being connected to an external device requiring a high pressure gas source via a first line (not shown). The spike 105 has a gas communication channel 116 (see fig. 9) inside, the gas communication channel 116 is communicated to the first connection port 115, when the spike 105 is in contact with the spike 500, the spike 105 can puncture the spike 500 under a certain pressure, and the gas in the spike 500 can flow into the first connection port 115 through the gas communication channel 116 inside the spike 105 and then flow into an external device requiring a high-pressure gas source through the first pipeline.

In an exemplary embodiment, one of the first guide 103 and the second guide 402 is a chute, and the other of the first guide 103 and the second guide 402 is a guide shaft.

In one embodiment, as shown in fig. 1, the first guide 103 is a chute and the second guide 402 is a guide shaft.

In an exemplary embodiment, as shown in fig. 2 and 5, the vial holder 400 has a second receiving chamber 404 and a third receiving chamber 405 open at a second end 403 of the vial holder 400, the second receiving chamber 404 and the third receiving chamber 405 being disposed along a length of the vial holder 400, the second receiving chamber 404 having an elastic assembly 406 mounted therein, the elastic assembly 406 being capable of providing an elastic bias to a gas vial positioned in the third receiving chamber 405.

In an exemplary embodiment, as shown in fig. 5, an annular stop 407 is provided between the second receiving chamber 404 and the third receiving chamber 405.

As shown in fig. 2, the elastic assembly 406 includes a connecting member 408 and a first elastic member 409, wherein a first end of the first elastic member 409 abuts against a bottom wall of the second accommodating cavity 404, and a second end of the first elastic member 409 abuts against the connecting member 408; as shown in fig. 6, an end of the connecting member 408, which is close to the first elastic member 409, is provided with an expansion portion 410 extending in a radial direction, an outer diameter D1 of the expansion portion 410 is larger than an inner diameter D2 of the annular stopper portion 407, and the expansion portion 410 is located in the second accommodating chamber 404, and an end of the connecting member 408, which is far from the first elastic member 409, is inserted into the third accommodating chamber 405 after passing through the annular stopper portion 407, and is capable of contacting the gas bottle 500. The gas bottle 500 is placed in the third receiving cavity 405 and the bottom of the gas bottle 500 abuts against one end of the connection 408.

When the bottle holder 400 is rotated from the inclined state of fig. 1 to the state of fig. 3 about the second guide 402, the first elastic member 409 elastically supports the gas bottle 500 through the connection member 408, and continues to press down the second end 202 of the pressing rod 200, so that the gas bottle 500 moves in a direction approaching the lancet 105, so that the lancet 105 punctures the gas bottle 500. In the process, the first elastic member 409 provides an elastic supporting force to the gas cylinder 500 through the connection 408 that is greater than the puncturing force applied to the gas cylinder 500 by the puncturing needle so that the puncturing needle 105 can puncture the gas cylinder 500.

The length dimensions of commercially available gas bottles 500 have a large tolerance, and the arrangement of the first resilient element 409 and the connector 408 allows the entire lancing device to accommodate gas bottles 500 of different lengths. When the gas bottle 500 is longer, the first elastic element 409 compresses to a greater extent to accommodate the longer gas bottle 500; when the gas bottle 500 is shorter, the first resilient element 409 compresses less to accommodate the shorter gas bottle 500.

The provision of the annular stop 407 prevents the resilient assembly 406 from sliding out of the bottle holder 400.

The difference in length of the gas bottle 500 preferably does not exceed the length L of the portion of the connector 408 that passes through the annular stop 407 (see fig. 2 for a fit), preventing the connector 408 from disengaging the annular stop 407.

In an exemplary embodiment, the first elastic element 409 may be a gas spring or an elastomer, where the kind of the first elastic element 409 is not limited thereto, and it may be any form in the prior art as long as the above-described functions can be achieved.

In an exemplary embodiment, as shown in fig. 2 and 6, a mounting slot 411 is provided at a side of the connection member 408 facing the third receiving chamber 405, and a magnet 412 is provided in the mounting slot 411.

The magnet 412 is capable of holding the gas cylinder 500 to position the gas cylinder 500.

In an exemplary embodiment, as shown in fig. 7, the second end 202 of the plunger 200 is provided with a self-locking hole 203 and the second end 104 of the base 100 is provided with: a gas passage 106 and a fourth accommodation chamber 107.

One end 108 of the gas passage 106 can be connected to a high pressure gas source originating from a gas bottle 500. Specifically, the sidewall of the second end 104 of the base 100 is provided with a second connection port 117, 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 the one end 108 of the gas channel 106, and a pressure regulating device may be disposed on the first pipeline, and a connection point of the second pipeline and the first pipeline may be located upstream of the pressure regulating device or may also be located downstream of the pressure regulating device. The high pressure gas in the gas bottle 500 flows from the first line to the second line and finally to the gas channel 106.

The fourth accommodation chamber 107 is internally provided with a piston rod 109 and a second elastic member 110, the piston rod 109 being capable of sliding along the length direction of the fourth accommodation chamber 107, the second elastic member 110 being capable of providing an elastic force that slides the piston rod 109 in a direction away from the self-locking hole 203 (i.e., in the direction of arrow a in fig. 7), the other end 111 of the gas passage 106 communicating to a portion of the fourth accommodation chamber 107 away from the self-locking hole 203.

The high-pressure gas flowing in through the gas passage 106 can push the piston rod 109 to be inserted into the self-locking hole 203 of the compression bar 200 while overcoming the elastic force of the second elastic element 110 after flowing into the fourth accommodating chamber 107, so as to lock the compression bar 200, and prevent the compression bar from being opened by misoperation of a worker under the condition that the high-pressure gas exists in the gas bottle 500, thereby avoiding accidents.

In an exemplary embodiment, the second elastic member 110 may be a spring, and the kind of the second elastic member 110 is not limited thereto, and may be any form in the prior art as long as the above-described functions can be achieved.

In an exemplary embodiment, a gap exists between the piston portion (a portion remote from the lock hole 203) of the piston rod 109 and the side wall of the fourth accommodation chamber 107, so that the high-pressure gas flowing in through the gas passage 106 can flow into the end of the fourth accommodation chamber 107 remote from the lock hole 203 through the gap, and the gas passage 106 is injected with a time delay agent.

The time delay agent causes the gas of the gas passage 106 to slowly flow into the fourth accommodation chamber 107, thereby reducing the pushing speed of the high pressure gas to the piston rod 109 to prevent one end of the piston rod 109 from penetrating out of the fourth accommodation chamber 107 before the compression rod 200 is pushed down in place, thereby affecting the push down of the compression rod 200.

In an exemplary embodiment, the time delay agent may be butter or damping grease, and the kind of the time delay agent is not limited thereto, and may be any form in the prior art as long as the above functions can be achieved. The butter can realize the time delay function under low pressure, and the damping grease can realize the time delay function under high pressure.

In an exemplary embodiment, as shown in fig. 7, 12 and 13, the piston portion of the piston rod 109 (i.e., the portion remote from the lock hole 203) is provided with a first groove 113, the first groove 113 is an annular groove, and the gas of the gas passage 106 and the delay agent enter the slit from the first groove 113, so that the force received by the outer circumferential surface of the piston rod 109 is made uniform.

In an exemplary embodiment, the piston portion of the piston rod 109 (i.e., the portion remote from the self-locking aperture 203) is further provided with a second groove 118, as shown in fig. 7, in which a sealing ring may be mounted within the second groove 118.

In an exemplary embodiment, as shown in fig. 8, the lower surface of the bottle holder 400 is provided with a soft pad 413, and the soft pad 413 can reduce friction between the lower surface of the bottle holder 400 and the base 100 and reduce scratches.

In an exemplary embodiment, the material of the cushion 413 may be nylon, and the kind of the material of the cushion 413 is not limited thereto, and may be any form in the prior art, as long as the above functions can be achieved.

In an exemplary embodiment, the sidewall of the bottle holder 400 is provided with a boss 414. On the one hand, the boss 414 may limit the bottle holder 400 in the width direction thereof; on the other hand, the boss 414 is hidden in the first accommodating cavity 101 of the base 100, so that even if the grinding mark is generated due to sliding, the grinding mark is generated at a position which is not easy to be seen by a user, thereby ensuring the aesthetic property of the whole device and being beneficial to improving the use experience of the user.

In an exemplary embodiment, as shown in fig. 1, 10 and 11, the side wall of the pressing lever 200 is provided with a locking groove 204, the locking groove 204 has a first guide surface 205 and a second guide surface 206, one side of the base 100 is provided with a latch 114, the bottom of the latch 114 is repositionably mounted to the base 100, and the top of the latch 114 has a pin 119.

During depression of the plunger 200, the first guide surface 205 of the locking groove 204 can push the pin 119 such that the pin 119 with the latch 114 can rotate about the bottom of the latch 114 such that the pin 119 leaves room so that the pin 119 can snap into the locking groove 204, thereby locking the plunger 200.

When it is desired to open the plunger 200, the operator directly pushes the top of the latch 114 so that the latch 114 rotates about its bottom to slide the pin 119 out of the locking slot 204 along the second guide surface 206, thereby unlocking the plunger 200.

The operation of the lancing device according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

In the state of fig. 1, the bottle holder 400 forms a certain angle with the base 100, 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 conveniently and directly inserted into the bottle holder 400 or the gas bottle 500 can be conveniently replaced. Wherein the magnet 412 in the connector 408 is capable of positioning the gas bottle 500 to prevent the gas bottle 500 from rocking within the bottle holder 400.

Pressing down on the second end 202 of the plunger 200 causes the plunger 200 to rotate (i.e., rotate downward) in a second rotational direction (i.e., clockwise in fig. 1-4) about the first end 102 of the base 100 from a second position (i.e., the position of fig. 1) and rotate the bottle holder 400 via the linkage 300.

After the plunger 200 is rotated to the position shown in fig. 3, the second end 403 of the bottle holder 400 has entered the first receiving chamber 101, at which point the bottle holder 400 is no longer rotated.

Continuing to press down on the second end 202 of the compression bar 200, the bottle holder 400 moves along the first guide 103 to the state of fig. 4, so that the gas bottle 500 contacts the spike 105, and the spike pierces the gas bottle 500, so that the high-pressure gas in the gas bottle 500 flows into the external device requiring the use of the high-pressure gas through the gas communication passage 116, the first connection port 115, and the first line inside the spike 105.

During depression of the second end 202 of the plunger 200, the first guide surface 205 of the locking groove 204 pushes the pin 119 such that the pin 119 rotates the latch 114 about the bottom of the latch 114 such that the pin 119 leaves room so that the pin 119 can snap into the locking groove 204, thereby locking the plunger 200.

In the state of fig. 4, the high-pressure gas in the gas bottle 500 flows into the one end 108 of the gas passage 106 through the first line and the second line, and then flows into the gas passage 106. The high pressure gas flowing in through the gas passage 106 can push the piston rod 109 to be inserted into the self-locking hole 203 of the compression rod 200 while overcoming the elastic force of the second elastic member 110 after flowing into the fourth receiving chamber 107 to lock the compression rod 200.

After the high pressure gas in the gas bottle 500 is used for a large part, the residual gas may be discharged through a pressure relief device (not shown). At this point, the gas bottle 500 needs to be replaced.

After the pressure relief device discharges the residual gas, the gas channel 106 has no high-pressure gas, and the compressed second elastic element 110 pushes the piston rod 109 to slide away from the self-locking hole 203 (i.e. in the direction of arrow a in fig. 7), so that the piston rod 109 is separated from the self-locking hole 203, and the locking of the piston rod 109 to the compression rod 200 is released.

When the gas bottle 500 needs to be replaced, the top of the lock catch 114 is directly pushed so that the lock catch 114 rotates around the bottom thereof, so that the pin 119 slides out of the locking groove 204 along the second guide surface 206, thereby unlocking the compression bar 200.

The second end 202 of the plunger 200 is rotated upwardly such that the plunger rotates (i.e., rotates upwardly) about the first end 102 of the base 100 in a first rotational direction (i.e., counterclockwise in fig. 1-4) from a first position (i.e., the position of fig. 4) to move the bottle holder 400 along the first guide 103 to the position of fig. 3 via the link 300, at which time the second guide 402 has slid to the end of the first guide 103 (the end proximate to the first end 102 of the base 100).

Continuing to rotate the plunger 200 upwards, since the second guiding portion 402 has slid to the end of the first guiding portion 103, the plunger 200 will drive the bottle holder 400 to rotate (i.e. rotate upwards) around the second guiding portion 402 in the first rotation direction (i.e. counterclockwise in fig. 1-4) by the connecting rod 300, so that the second end 403 of the bottle holder 400 leaves the first accommodating cavity 101, i.e. the bottle holder 400 forms an included angle with the base 100, so as to replace the gas bottle 500 more conveniently.

For convenience in explanation and accurate definition in the appended claims, the terms "upper", "lower", "inner", "outer", "upper", "lower", "upwardly", "downwardly", "front", "rear", "back", "inner", "outer", "inwardly", "outwardly", "inner", "outer", "outwardly", "forwardly", "rearwardly" are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures.

The foregoing description of specific exemplary embodiments of the invention has been presented for the purposes of illustration and description. The foregoing description is not intended to be exhaustive or to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application to thereby enable others skilled in the art to make and utilize the invention in various exemplary embodiments and with various alternatives and modifications. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A lancing device, comprising:

a base having a first accommodation chamber opened upward, a first guide portion being provided at a position of a side wall of the first accommodation chamber near a first end of the base, and a lancet being provided at a second end of the base;

a compression lever having a first end pivotably connected to the first end of the base;

a link having a first end pivotally connected to the strut at a location proximate the first end of the strut;

a bottle holder, a first end of which is provided with a second guide portion pivotably and movably connected to the first guide portion, a second end of which is pivotably connected to a second end of the link;

when the pressure lever rotates from the first position to the second position around the first end of the base in the first rotating direction, the pressure lever drives the bottle seat to move along the first guide part through the connecting rod and then rotate around the second guide part in the first rotating direction, so that the second end of the bottle seat leaves the first accommodating cavity;

when the pressure lever rotates from the second position to the first position in the second rotation direction around the first end of the base, the pressure lever drives the bottle seat to rotate around the second guide part in the second rotation direction through the connecting rod, so that the second end of the bottle seat enters the first accommodating cavity and then moves along the first guide part.

2. The lancing device of claim 1, wherein the receptacle has a second housing chamber and a third housing chamber open at a second end of the receptacle, the second housing chamber and the third housing chamber being disposed along a length of the receptacle, the second housing chamber being configured to house a resilient assembly capable of providing a resilient bias to the lancing device positioned in the third housing chamber.

3. The lancing device of claim 2, wherein an annular stop is disposed between the second and third receiving chambers;

the elastic component includes connecting piece and first elastic element, and first elastic element's first end is supported and is stopped on the diapire of second holding the chamber, and first elastic element's second end is supported and is stopped on the connecting piece, the one end that is close to first elastic element of connecting piece is provided with radial extension's extension, the external diameter of extension is greater than the internal diameter of annular backstop portion, and extension is located in the second holds the intracavity, the one end that keeps away from first elastic element of connecting piece passes behind the annular backstop portion and inserts the third holds the chamber, and can contact wait to puncture the device.

4. A lancing device according to claim 3, wherein a side of the connector facing the third receiving chamber is provided with a mounting slot in which a magnet is disposed.

5. The lancing device of claim 1, wherein the second end of the plunger is provided with a self-locking aperture and the second end of the base is provided with:

a gas passage having one end capable of communicating to a high pressure gas source originating from the device to be pierced; and

a fourth accommodation chamber in which a piston rod and a second elastic member are provided, the piston rod being capable of sliding along a length direction of the fourth accommodation chamber, the second elastic member being capable of providing an elastic force that causes the piston rod to slide in a direction away from the self-locking hole, the other end of the gas passage being communicated to a portion of the fourth accommodation chamber away from the self-locking hole;

the high pressure gas flowing in through the gas passage or the pressure-regulated high pressure gas can push the piston rod to be inserted into the self-locking hole of the pressing rod while overcoming the elastic force of the second elastic element after flowing into the fourth accommodating cavity.

6. The lancing device of claim 1, wherein the lance has a gas communication channel therein and the second end of the base is provided with a first connection port that communicates to the gas communication channel.

7. The lancing device according to claim 5, wherein a gap exists between the piston portion of the piston rod and the sidewall of the fourth housing chamber such that the high pressure gas flowing through the gas channel or the pressure regulated high pressure gas can flow through the gap into the end of the fourth housing chamber remote from the self-locking aperture and the gas channel is injected with a time delay agent.

8. The lancing device of claim 7, wherein the sidewall of the second end of the chassis is provided with a second connection port through which the gas channel communicates to a high pressure gas source derived from the device to be lancing.

9. The lancing device of claim 1, wherein one of the first and second guides is a chute and the other of the first and second guides is a guide shaft.

10. The lancing device of claim 1, wherein the lower surface of the vial seat is provided with a cushion and the sidewall of the vial seat is provided with a boss.