Piercing device

Abstract

The present invention relates to a puncture device, comprising: a base, which has a first accommodating cavity opening upward, and a locking groove and a puncture guide surface are arranged on the side wall of the first accommodating cavity; a pressure rod, whose first end can be pivotally connected to one end of the base; a mounting seat, whose one end can be pivotally connected to the pressure rod, the mounting seat has a second accommodating cavity and a strip groove, and the mounting seat is provided with a fixing portion; a puncture member, which is arranged in the second accommodating cavity and can slide along the second accommodating cavity, one end of the puncture member has a puncture needle, and the puncture member has a guide portion; when the pressure rod rotates in a first rotation direction, the pressure rod drives the guide portion to rotate, so that the guide portion slides along the puncture guide surface and then enters the locking groove, so that the fixing portion enters the first accommodating cavity; in the process of sliding along the puncture guide surface, the guide portion can drive the puncture member to move relative to the second accommodating cavity in a direction close to the fixing portion. The present invention can prevent the staff from opening the pressure rod by mistaken operation, thereby avoiding danger.

Description

Technical Field

[0001] 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. Background Art

[0002] 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.

[0003] When in use, it is necessary to connect the puncture device to the small high-pressure gas bottle, and puncture the small high-pressure gas bottle through the puncture device to release the high-pressure gas in the small high-pressure gas bottle.

[0004] The installation and disassembly between the existing puncture device and the small high-pressure gas bottle are relatively complicated, and there is a need for further improvement.

[0005] The information disclosed in this background section is only intended to enhance understanding of the overall background of the invention and should not be taken as an acknowledgement or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The object of the present invention is to provide a puncturing device, which, with the cooperation of the guide part and the upper edge of the base, the puncturing guide surface, and the locking groove, utilizes a pressure rod to drive the fixed part of the mounting seat and the small high-pressure gas bottle fixed on the fixed part to enter or leave the first accommodating cavity of the base. In the process of sliding downward along the puncturing guide surface, the guide part drives the puncturing component to move toward the fixed part relative to the second accommodating cavity to puncture the small high-pressure gas bottle fixed on the fixed part, and the guide part can be locked by the locking groove, thereby preventing the staff from opening the pressure rod due to mistaken operation and avoiding danger.

[0007] The present invention provides a puncture device, comprising: a base, which has a first accommodating cavity opening upward, a locking groove is provided at a position of a side wall of the first accommodating cavity close to one end of the base, the locking groove is inclined toward one end of the base along a direction from top to bottom, and a puncture guide surface is provided between the locking groove and the upper edge of the base; a pressure rod, a first end of which can be pivotally connected to one end of the base; a mounting seat, one end of which can be pivotally connected to the pressure rod, the mounting seat having a second accommodating cavity penetrating therethrough, the side wall of the mounting seat having a strip groove extending along the length direction of the second accommodating cavity, and a fixing portion is provided at a position of the mounting seat away from one end of the base; and a puncture member, which is provided in the second accommodating cavity and can be pivotally connected along the second accommodating cavity. The accommodating cavity slides, one end of the puncture component has a puncture needle, and the puncture component has a guide part that passes through the strip groove; wherein, when the pressure rod rotates from the first position to the second position around one end of the base in the first rotation direction, the pressure rod first drives the guide part to rotate to a state of contact with the upper edge of the base to slide along the puncture guide surface, and then enters the locking groove, so that the fixed part enters the first accommodating cavity; or, the pressure rod first drives the guide part to rotate to a state of contact with the puncture guide surface of the base to slide along the puncture guide surface, and then enters the locking groove, so that the fixed part enters the first accommodating cavity; in the process of sliding along the puncture guide surface, the guide part can drive the puncture component to move relative to the second accommodating cavity in a direction close to the fixed part.

[0008] Preferably, the mounting seat includes a mounting seat body and the fixing portion, and the second accommodating cavity includes: a first space, a second space and a third space connected in sequence, wherein the first space and the second space pass through the mounting seat body, the third space passes through the fixing portion, the fixing portion is fixed to the second space, and the inner diameter of the second space is larger than the inner diameter of the first space.

[0009] Preferably, the third space comprises a sliding subspace, a puncture needle subspace and a locking subspace which are connected in sequence.

[0010] Preferably, the puncturing member comprises a puncturing member body and the puncture needle, the puncturing member body has a fluid cavity inside, the outer peripheral surface of the puncture needle has a recessed portion, the side wall of the fluid cavity of the puncturing member body has a conducting groove, and the second accommodating cavity is connected to the fluid cavity through the conducting groove.

[0011] Preferably, the piercing member body includes a connecting portion, a limiting portion, a sealing portion and a sliding portion which are connected in sequence; the limiting portion is located in the second space, the inner diameter of the limiting portion is adapted to the inner diameter of the second space, the sealing portion is adapted to the inner diameter of the sliding sub-space, the diameter of the sliding portion is smaller than the inner diameter of the sliding sub-space, and the outer peripheral surface of the sliding portion has the conducting groove.

[0012] Preferably, the piercing member body further comprises a sealing ring.

[0013] Preferably, the upper edge of the base is provided with a downwardly recessed groove, which is communicated with the locking groove and is located on a side of the locking groove away from the puncture guide surface.

[0014] Preferably, the puncture guide surface is a slope.

[0015] Preferably, the puncturing device further comprises a connecting rod, a first end of which is pivotally connected to a position of the pressure rod close to the first end, and a second end of the connecting rod is pivotally connected to the mounting seat.

[0016] Preferably, a support is provided on the side wall of the first accommodating cavity, a first end of the support is pivotally connected to one end of the base, and a second end of the support is provided with the puncture guide surface.

[0017] The puncturing device of the present invention utilizes a pressure rod to drive the fixed portion of the mounting seat and the small high-pressure gas bottle fixed on the fixed portion to enter or leave the first accommodating cavity of the base under the cooperation of the guide portion and the upper edge of the base, the puncturing guide surface, and the locking groove. In the process of sliding downward along the puncturing guide surface, the guide portion drives the puncturing member to move toward the fixed portion relative to the second accommodating cavity to puncture the small high-pressure gas bottle fixed on the fixed portion, and the locking groove can be used to lock the guide portion, thereby preventing the staff from opening the pressure rod by mistake and avoiding danger.

[0018] The methods and apparatus of the present invention have other features and advantages that will be apparent from, or will be described in detail in, the accompanying drawings and subsequent embodiments incorporated herein, which together serve to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of a first puncture device provided in an embodiment of the present invention;

[0020] Figure 2 for Figure 1 sectional view of;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 1 ;

[0022] Figure 4 for Figure 3 sectional view of;

[0023] Figure 5 for Figure 1 Schematic diagram of the structure of the middle base;

[0024] Figure 6 for Figure 1 A partial enlarged schematic diagram of the middle base;

[0025] Figure 7 for Figure 1 Schematic diagram of the structure of the intermediate pressure rod;

[0026] Figure 8 is a schematic diagram of the internal structure of the mounting base;

[0027] Fig. 9 It is a structural schematic diagram of the puncture component;

[0028] Fig.10 is a schematic diagram of the internal structure of the puncture component;

[0029] Fig.11 A schematic diagram of the structure of the mounting seat and the piercing member;

[0030] Fig. 12A for Figure 1 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 2 ;

[0031] Fig. 12B for Fig. 12A sectional view of;

[0032] Fig.13A for Figure 1 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 3 ;

[0033] Fig. 13B for Fig.13A sectional view of;

[0034] Fig. 13C for Fig. 13B A partial enlarged schematic diagram of

[0035] Fig.14 for Figure 1 A partial enlarged schematic diagram of the middle base;

[0036] Fig.15 A schematic diagram of the flow path of gas after the puncture needle punctures a small high-pressure gas bottle;

[0037] Fig.16A for Figure 1 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 4 ;

[0038] Fig. 16B for Fig.16A sectional view of;

[0039] Fig. 16C for Fig. 16B A partial enlarged schematic diagram of

[0040] Fig.17A for Figure 1 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 5 ;

[0041] Fig. 17B for Fig.17A sectional view of;

[0042] Fig. 17C for Fig. 17B A partial enlarged schematic diagram of

[0043] Fig.18 for Figure 1 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 6 ;

[0044] Fig.19 A schematic diagram of the structure of a second puncture device provided in an embodiment of the present invention;

[0045] Fig. 20 for Fig.19 Schematic diagram of the structure of the intermediate pressure rod;

[0046] Fig.21A for Fig.19 Schematic diagram of the structure of the middle support;

[0047] Fig.21B is the main view of the support;

[0048] Fig.22A Schematic diagram of the position relationship between the support and the base Figure 1 ;

[0049] Fig. 22B Schematic diagram of the position relationship between the support and the base Figure 2 ;

[0050] Fig.23 for Fig.19 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 1 ;

[0051] Fig.24 for Fig.19 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 2 ;

[0052] Fig.25 for Fig.19 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 3 ;

[0053] Fig.26 for Fig.19 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 4 ;

[0054] Fig. 27 for Fig.19 Schematic diagram of the structure of the puncture device after installing a small high-pressure gas bottle Figure 5 .

[0055] Description of reference numerals:

[0056] 100: base 101: first receiving chamber

[0057] 102: one end 103: locking groove

[0058] 104: Upper edge 105: Piercing guide surface

[0059] 106: groove 107: support

[0060] 108: axis 109: upper edge

[0061] 110: mounting portion 111: supporting portion

[0062] 112: Side wall 113: Side wall

[0063] 114: Top edge

[0064] 200: Pressure rod 201: First end

[0065] 202: L-shaped groove 203: first slide groove

[0066] 204: second chute 205: second end

[0067] 206: Circular groove

[0068] 300: Connecting rod

[0069] 400: mounting seat 401: second accommodation cavity

[0070] 402: Strip groove 403: Fixing part

[0071] 404: Mounting seat body 405: First space

[0072] 406: Second Space 407: Third Space

[0073] 409: Sliding subspace 410: Needle subspace

[0074] 411: Locking subspace 412: Air pipe joint

[0075] 500: puncture member 501: puncture needle

[0076] 502: guide part 503: piercing member body

[0077] 504: Fluid cavity 505: Recessed portion

[0078] 506: Connecting part 507: Limiting part

[0079] 508: Sealing part 509: Sliding part

[0080] 510; sealing ring 511: conducting groove

[0081] 600: Small high pressure gas cylinder.

[0082] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of the present invention. The specific design features disclosed in the present invention (including, for example, specific dimensions, directions, locations, and shapes) will be determined in part by the specific intended application and use environment.

[0083] In the figures, like reference numbers refer to the same or equivalent parts of the present invention throughout the several figures of the drawing. DETAILED DESCRIPTION

[0084] The following will be referred to in detail various embodiments of the present invention, examples of which are presented in the accompanying drawings and described below. Although the present invention will be described in conjunction with exemplary embodiments, it should be understood that this specification is not intended to limit the present invention to these exemplary embodiments. On the contrary, the present invention is intended to cover not only these exemplary embodiments, but also various alternative forms, modifications, equivalent forms and other embodiments that can be included in the spirit of the present invention and within the scope defined by the appended claims.

[0085] When an element is referred to as being “on” or “over” another element, the element may be in contact with the other element or intervening elements may also be present.

[0086] According to an embodiment of the present invention, the first position of the pressure rod 200 is the maximum open position of the pressure rod 200 relative to the base 100. When the pressure rod 200 is in the first position, the fixing portion 403 of the mounting seat 400 is located above the first accommodating cavity 101 of the base 100 to facilitate installation or removal of the small high-pressure gas bottle 600.

[0087] The second position of the pressing rod 200 is a position where the pressing rod 200 is parallel to the base 100 . When the pressing rod 200 is in the second position, the fixing portion 403 of the mounting seat 400 is received in the first accommodation cavity 101 of the base 100 .

[0088] Combine the following Figures 1 to 27A lancing device according to an embodiment of the present invention is described.

[0089] like Figures 1 to 6 As shown, the puncturing device according to the embodiment of the present invention includes: a base 100, a pressure rod 200, a connecting rod 300, a mounting seat 400 and a puncturing member 500.

[0090] like Figure 1 , Figure 5 and Figure 6 As shown, the base 100 has a first accommodating cavity 101 opening upward, and a locking groove 103 is provided at a position of a side wall of the first accommodating cavity 101 near one end 102 of the base 100. The locking groove 103 is inclined toward one end 102 of the base 100 from top to bottom, and a puncture guide surface 105 is provided between the locking groove 103 and the upper edge 104 of the base 100.

[0091] The first end 201 of the compression rod 200 is pivotally connected to the one end 102 of the base 100. The first end of the connecting rod 300 is pivotally connected to the compression rod 200 at a position close to the first end 201.

[0092] like Figure 1 and Figure 2 As shown, one end of the mounting seat 400 can be pivotally connected to the connecting rod 300, the mounting seat 400 has a penetrating second accommodating cavity 401, the side wall of the mounting seat 400 has a strip groove 402 extending along the length direction of the second accommodating cavity 401, and a fixing portion 403 is provided at a position of one end 102 of the mounting seat 400 away from the base 100, and the fixing portion 403 is used to fix the small high-pressure gas bottle 600 to be punctured.

[0093] like Figure 1 and Figure 2 As shown, the piercing member 500 is disposed in the second accommodating cavity 401 and can slide along the second accommodating cavity 401 , one end of the piercing member 500 has a puncture needle 501 , and the piercing member 500 has a guide portion 502 that passes through the strip groove 402 .

[0094] When the pressure rod 200 rotates from the first position around the end 102 of the base 100 in the first rotation direction (ie, Figures 1 to 4 When the pressing rod 200 is rotated to the second position (in the direction of the arrow A in the figure), the pressing rod 200 first drives the guiding portion 502 to rotate to a state of contacting the upper edge 104 of the base 100 through the connecting rod to slide along the puncture guiding surface 105, and then enters the locking groove 103, so that the fixing portion 403 enters the first accommodating cavity 101.

[0095] Alternatively, the pressure rod 200 first drives the guide portion 502 to rotate to a state of contacting the puncture guide surface 105 of the base 100 through the connecting rod 300 to slide along the puncture guide surface 105, and then enters the locking groove 103, so that the fixing portion 403 enters the first accommodating cavity 101.

[0096] In the process of sliding along the puncture guide surface 105 , the guide portion 502 drives the puncture member 500 to move relative to the second accommodating cavity 401 toward the fixing portion 403 , so as to puncture the small high-pressure gas bottle 600 fixed on the fixing portion 403 .

[0097] In the present invention, with the cooperation of the guide part 502 with the upper edge 104 of the base 100, the puncture guide surface 105, and the locking groove 103, the pressure rod 200 and the connecting rod 300 are used to drive the fixing part 403 of the mounting seat 400 and the small high-pressure gas bottle fixed on the fixing part 403 to enter or leave the first accommodating cavity 101 of the base 100. In the process of sliding downward along the puncture guide surface 105, the guide part 502 drives the puncture member 500 to move toward the fixing part 403 relative to the second accommodating cavity 401, so as to puncture the small high-pressure gas bottle fixed on the fixing part 403, and the locking groove 103 can be used to lock the guide part 502, thereby preventing the staff from opening the pressure rod 200 due to mistaken operation and avoiding danger.

[0098] In an exemplary embodiment, Figure 5 As shown, the upper edge of the base 100 is provided with a downwardly recessed groove 106, which is connected to the locking groove 103 and is located on the side of the locking groove 103 away from the puncture guide surface 105. In the process of opening the pressure rod 200, the groove 106 can make it easier for the guide part 502 to escape from the locking groove 103.

[0099] In one embodiment, if Figure 5 and Figure 6 As shown, the puncture guide surface 105 is a circular arc surface. In another embodiment, the puncture guide surface 105 is a slope (not shown in the figure).

[0100] In an exemplary embodiment, Figure 7 As shown, the side wall of the pressure rod 200 is provided with an L-shaped groove 202 , and the L-shaped groove 202 includes a first sliding groove 203 and a second sliding groove 204 . The function of the L-shaped groove 202 is to facilitate opening the pressure rod 200 .

[0101] The second end of the connecting rod 300 can be pivotally connected to the L-shaped groove 202 and can slide along the first sliding groove 203 and the second sliding groove 204 of the L-shaped groove 202 .

[0102] In an exemplary embodiment, Figure 8As shown, the mounting seat 400 includes a mounting seat body 404 and the fixing portion 403, and the second accommodating cavity 401 includes: a first space 405, a second space 406 and a third space 407 which are connected in sequence, wherein the first space 405 and the second space 406 pass through the mounting seat body 404, the third space 407 passes through the fixing portion 403, the fixing portion 403 is fixed to the second space 406, and the inner diameter of the second space 406 is greater than the inner diameter of the first space 405.

[0103] In an exemplary embodiment, Figure 8 As shown, the third space 407 includes a sliding subspace 409, a puncture needle subspace 410 and a locking subspace 411 which are connected in sequence.

[0104] In an exemplary embodiment, one end of the mount body 404 is pivotally connected to the connecting rod 300 , and the other end of the mount body 404 is pivotally connected to the compression rod 200 at a position close to the first end 201 of the compression rod 200 .

[0105] In an exemplary embodiment, Figures 9 to 11 As shown, the piercing member 500 includes a piercing member body 503 and the puncture needle 501, the piercing member body 503 has a fluid cavity 504 inside, the outer peripheral surface of the puncture needle 501 has a recessed portion 505, the side wall of the fluid cavity 504 of the piercing member body 503 has a conducting groove 511, and the third space 407 of the second accommodating cavity 401 is connected to the fluid cavity 504 through the conducting groove 511.

[0106] In an exemplary embodiment, Fig.10 As shown, the piercing member body 503 includes a connecting portion 506, a limiting portion 507, a blocking portion 508 and a sliding portion 509 which are connected in sequence.

[0107] The limiting portion 507 is located in the second space 406, the inner diameter of the limiting portion 507 is adapted to the inner diameter of the second space 406, the blocking portion 508 is adapted to the inner diameter of the sliding subspace 409, the diameter of the sliding portion 509 is smaller than the inner diameter of the sliding subspace 409, and the outer peripheral surface of the sliding portion 509 has the conducting groove 511.

[0108] The connecting portion 506 is connected to the gas pipe joint 412. At least a portion of the blocking portion 508 is located in the sliding subspace 409 to prevent the high-pressure gas in the sliding subspace 409 from flowing to the second space 406 and the first space 405. The sliding portion 509 is located in the sliding subspace 409.

[0109] In an exemplary embodiment, Fig. 9 and Fig.10As shown, the piercing member body 503 further includes a sealing ring 510. The sealing ring 510 can prevent the high-pressure gas in the sliding subspace 409 from flowing to the second space 406 and the first space 405, thereby preventing the gas from leaking out.

[0110] In another embodiment, Fig.19 As shown, a support 107 is disposed on the side wall of the first accommodating cavity 101 , a first end of the support 107 is pivotally connected to one end 102 of the base 100 , and a second end of the support 107 is disposed with the puncture guide surface 105 .

[0111] exist Fig.19 In the embodiment, the puncturing device does not include the connecting rod 300, and the pressing rod 200 directly drives the guiding part 502 to rotate.

[0112] exist Fig.19 In the embodiment, one end of the mounting seat 400 can be pivotally connected to the circular groove 206 of the pressure rod 200, and the circular groove 206 is located at a position of the pressure rod 200 close to the first end 201 of the pressure rod 200 (see Fig. 20 ).

[0113] like Fig.21A and Fig.21B As shown, the support 107 includes a mounting portion 110 and a supporting portion 111 formed as one body, the mounting portion 110 is pivotally connected to the base 100 through the shaft 108, the supporting portion 111 is located above the base 100 and corresponds to the side wall of the base 100 in the vertical direction, and the mounting portion 110 is located on the outer side of the side wall of the base 100 (see Fig.22A and Fig. 22B ).

[0114] like Fig.22A As shown, when the support 107 rotates around the axis 108 to a state where the lower surface of the support portion 111 is in contact with the upper edge 109 of the base 100 (i.e., the lower surface of the groove 106), the side wall 112 of the mounting portion 110 and the side wall 113 of the support portion 111 are aligned with the upper side wall of the locking groove 103.

[0115] The operation of the puncture device according to the embodiment of the present invention will be described below with reference to the accompanying drawings.

[0116] Figure 1 The operation process of the implementation scheme is as follows:

[0117] exist Figure 1 and Figure 2 In this state, the mounting seat 400 and the base 100 form a certain angle, and the pressure rod 200 is in the first position.

[0118] like Figure 3 and Figure 4As shown, the small high-pressure gas bottle 600 is fixed to the fixing portion 403 of the mounting seat 400 .

[0119] The second end 205 of the pressing rod 200 is pressed downward, and the pressing rod 200 is rotated from the first position around the end 102 of the base 100 in the first rotation direction (ie, Figure 3 and Figure 4 The pressure rod 200 first drives the guide portion 502 to rotate directly to a state of contact with the piercing guide surface 105 of the base 100 through the connecting rod 300 (see Fig. 12A and 12B ) to slide along the puncture guide surface 105.

[0120] During the sliding of the guide portion 502 along the puncture guide surface 105, the puncture guide surface 105 applies a driving force to the guide portion 502, and the driving force drives the guide portion 502 to move along the strip groove 402 in a direction away from the end 102 of the base 100 (see Fig.13A During the movement of the guide portion 502 along the strip groove 402 in a direction away from the end 102 of the base 100, the guide portion 502 drives the piercing member 500 to move relative to the second accommodating cavity 401 of the mounting seat 400 in a direction close to the fixing portion 403, so that the piercing needle 501 of the piercing member 500 pierces the small high-pressure gas bottle 600 fixed on the fixing portion 403 (see Fig. 13B and Fig. 13C ).

[0121] The guide portion 502 slides downward from the initial position C of the puncture guide surface 105 along the puncture guide surface 105 to the maximum puncture position D, and continues to slide downward to the end position E of the puncture guide surface 105 (see Fig.14 ).

[0122] When the guide portion 502 slides downward from the initial position C of the puncture guide surface 105 to the maximum puncture position D along the puncture guide surface 105, the puncture member 500 moves to the maximum position relative to the second accommodating cavity 401 of the mounting seat 400 in the direction close to the fixing portion 403. At this time, the puncture needle 501 penetrates the small high-pressure gas bottle 600 to the deepest depth.

[0123] When the guide portion 502 slides downward from the maximum puncture position D of the puncture guide surface 105 to the end position E, the puncture member 500 moves relative to the second accommodating cavity 401 of the mounting seat 400 in a direction away from the fixing portion 403. After passing the end position E, the guide portion 502 begins to move to the left along the strip groove 402 until it returns to the leftmost end of the strip groove 402.

[0124] The guide portion 502 slides downward from the end position E of the piercing guide surface 105 to the locking groove 103 , and the locking groove 103 can lock the guide portion 502 .

[0125] After the rubber stopper of the small high-pressure gas bottle 600 is punctured, the high-pressure gas in the small high-pressure gas bottle 600 flows into the puncture subspace 410 and the sliding subspace 409 of the third space 407 of the second accommodating chamber 401 (see Fig.15 Specifically, in the puncture needle subspace 410 of the third space 407 , the high-pressure gas flows into the sliding subspace 409 through the recessed portion 505 of the puncture needle 501 .

[0126] In the sliding subspace 409 , the high-pressure gas flows into the fluid cavity 504 of the piercing member body 503 through the conducting groove 511 , and then flows into the air pipe connector 412 .

[0127] When the guide portion 502 slides into the locking groove 103 (see Fig.16A , Fig. 16B and Fig. 16C ), as long as there is high-pressure gas in the small high-pressure gas bottle 600, the high-pressure gas flowing out or spraying out of the small high-pressure gas bottle 600 will push the piercing member body 503 and the piercing needle 501 toward the direction close to the end 102 of the base 100, so that the piercing member body 503 and the piercing needle 501 move toward the direction close to the end 102 of the base 100, and then the guide part 502 moves further downward along the locking groove 103 in the process of moving toward the direction close to the end 102 of the base 100, so that the locking groove 103 locks the guide part 502 (see Fig.17A , Fig. 17B and Fig. 17C ). This situation can prevent the staff from opening the pressure rod 200 due to misoperation and avoid causing danger. At this time, the pressure rod 200 is in the second position.

[0128] When the high-pressure gas in the small high-pressure gas bottle 600 is completely released, the puncturing member body 503 and the puncture needle 501 are no longer pushed by the high-pressure gas, so that the guide portion 502 can move upward along the locking groove 103 .

[0129] The second end 205 of the pressing rod 200 is pushed upward, and the pressing rod 200 is rotated from the second position around the end 102 of the base 100 in the second rotation direction (ie, Fig.17A and Fig. 17B The pressing rod 200 first drives the guide portion 502 to move upward along the locking groove 103 through the connecting rod 300, and then moves upward along the piercing guide surface 105, and finally leaves the upper edge 104 of the base 100.

[0130] When the pressing rod 200 is rotated along the second rotation direction (ie, Fig.17A and Fig. 17B After being rotated back to the first position (in the direction of arrow B in the figure), the fixing portion 403 of the mounting base 400 is located above the first accommodating cavity 101 of the base 100. At this time, the small high-pressure gas bottle 600 that has released the high-pressure gas is already located above the first accommodating cavity 101 of the base 100. The small high-pressure gas bottle 600 that has released the high-pressure gas can be removed and then replaced with a new small high-pressure gas bottle 600.

[0131] In addition to the above-mentioned embodiments, the guide portion 502 is directly rotated to a state of contacting the puncture guide surface 105 of the base 100 (see Fig. 12A and Fig. 12B ), the guide portion 502 may also be rotated to a state of contact with the upper edge 104 of the base 100 (see Fig.18 ), and then moves to the right along the upper edge 104 of the base 100 until it contacts the puncture guide surface 105 (see Fig. 12A and Fig. 12B During the rightward movement, the guide portion 502 drives the piercing member 500 to move a short distance relative to the second accommodating cavity 401 toward the fixing portion 403 . However, this short distance is not enough for the piercing needle 501 to pierce the small high-pressure gas bottle 600 fixed on the fixing portion 403 .

[0132] Fig.19 The operation process of the implementation plan Figure 1 The differences in the operational procedures of the implementation schemes are as follows:

[0133] Press the pressing rod 200 downward to make the pressing rod 200 rotate along the first rotation direction (ie, Fig.23 , Fig.24 and Fig.25 The pressing rod 200 directly drives the guide portion 502 to rotate directly to a state of contacting the upper edge 114 of the support portion 111 of the support 107 of the base 100 or the piercing guide surface 105 to slide along the piercing guide surface 105, and finally causes the guide portion 502 to slide into the locking groove 103 (see Fig.26 ).

[0134] When the high-pressure gas in the small high-pressure gas bottle 600 is completely released, the second end 205 of the pressure rod 200 is pushed upward, and the pressure rod 200 rotates from the second position around the end 102 of the base 100 in the second rotation direction (ie, Fig.26 and Fig. 27 The pressure rod 200 drives the guide portion 502 to rotate along the second rotation direction (ie, Fig.26 and Fig. 27 (direction of arrow B in the figure).

[0135] After the guide portion 502 is disengaged from the locking groove 103, the guide portion 502 pushes the support 107 to rotate around the axis 108 along the second rotation direction (ie, Fig.26 and Fig. 27 The support 107 rotates in the direction of the arrow B in the figure, so that the support 107 makes room for the rotation of the guide portion 502. After the guide portion 502 passes over the support 107, the support 107 rotates around the axis 108 along the second rotation direction (i.e., Fig.26 and Fig. 27 in the direction of arrow B) Fig.23 status.

[0136] For convenience of interpretation and precise definition of the appended claims, the terms "upper", "lower", "inner", "outer", "above", "below", "upper", "lower", "upward", "downward", "front", "back", "back", "inside", "outside", "inward", "outward", "interior", "exterior", "inner", "external", "forward", and "backward" are used to describe the features of the exemplary embodiments with reference to the positions of such features as shown in the accompanying drawings.

[0137] The foregoing description of the specific exemplary embodiments of the present invention is presented for the purpose of illustration and description. The foregoing description is not intended to be exhaustive, nor is it intended to limit the present invention to the precise form disclosed, and it is apparent that many changes and variations are possible in accordance with the above teachings. The exemplary embodiments are selected and described to explain the specific principles of the present invention and its practical application, so that other technical personnel in the art can realize and utilize the various exemplary embodiments of the present invention and its different selected forms and modified forms. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A puncture device, characterized in that: include: The base has a first accommodating cavity opening upward, a locking groove is provided at a position of a side wall of the first accommodating cavity near one end of the base, the locking groove is inclined toward one end of the base from top to bottom, and a puncture guide surface is provided between the locking groove and the upper edge of the base; A pressure rod, a first end of which is pivotally connected to one end of the base; A mounting seat, one end of which is pivotally connected to the pressure rod, the mounting seat having a second accommodating cavity extending therethrough, a side wall of the mounting seat having a strip groove extending along the length direction of the second accommodating cavity, and a fixing portion being arranged at a position of one end of the mounting seat away from the base; as well as a piercing member, which is disposed in the second accommodating cavity and can slide along the second accommodating cavity, wherein one end of the piercing member has a piercing needle, and the piercing member has a guide portion that passes through the strip-shaped groove; When the pressure rod rotates from the first position to the second position in the first rotation direction around one end of the base, the pressure rod first drives the guide part to rotate to a state of contacting with the upper edge of the base to slide along the puncture guide surface, and then enters the locking groove, so that the fixing part enters the first accommodating cavity; Alternatively, the pressure rod first drives the guide portion to rotate to a state where it contacts the puncture guide surface of the base so as to slide along the puncture guide surface and then enters the locking groove, thereby allowing the fixing portion to enter the first accommodating cavity; In the process of sliding along the puncture guide surface, the guide portion can drive the puncture member to move in a direction close to the fixing portion relative to the second accommodating cavity.

2. The puncture device according to claim 1, characterized in that: The mounting seat includes a mounting seat body and the fixing portion, and the second accommodating cavity includes: a first space, a second space and a third space that are connected in sequence, wherein the first space and the second space pass through the mounting seat body, the third space passes through the fixing portion, the fixing portion is fixed to the second space, and the inner diameter of the second space is greater than the inner diameter of the first space.

3. The puncture device according to claim 2, characterized in that: The third space includes a sliding subspace, a puncture needle subspace and a locking subspace which are connected in sequence.

4. The puncture device according to claim 3, characterized in that: The puncturing member comprises a puncturing member body and the puncture needle, wherein the puncturing member body has a fluid cavity inside, the outer peripheral surface of the puncture needle has a recessed portion, the side wall of the fluid cavity of the puncturing member body has a conducting groove, and the second accommodating cavity is connected to the fluid cavity through the conducting groove.

5. The puncture device according to claim 4, characterized in that: The piercing member body comprises a connecting portion, a limiting portion, a blocking portion and a sliding portion which are connected in sequence; The limiting part is located in the second space, the inner diameter of the limiting part is adapted to the inner diameter of the second space, the blocking part is adapted to the inner diameter of the sliding subspace, the diameter of the sliding part is smaller than the inner diameter of the sliding subspace, and the outer peripheral surface of the sliding part has the conducting groove.

6. The puncture device according to claim 4, characterized in that: The piercing member body further includes a sealing ring.

7. The puncture device according to claim 1, characterized in that: The upper edge of the base is provided with a downwardly recessed groove, which is communicated with the locking groove and is located at a side of the locking groove away from the puncture guide surface.

8. The puncture device according to claim 1, characterized in that: The puncture guide surface is an inclined surface.

9. The puncture device according to claim 1, characterized in that: It further comprises a connecting rod, a first end of which is pivotally connected to a position of the pressure rod close to the first end, and a second end of which is pivotally connected to the mounting seat.

10. The puncture device according to claim 1, characterized in that: A support is provided on the side wall of the first accommodating cavity, a first end of the support is pivotally connected to one end of the base, and a second end of the support is provided with the puncture guide surface.

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