WO2019061476A1 - 一种进气连接装置及进气连接系统 - Google Patents

一种进气连接装置及进气连接系统 Download PDF

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Publication number
WO2019061476A1
WO2019061476A1 PCT/CN2017/104939 CN2017104939W WO2019061476A1 WO 2019061476 A1 WO2019061476 A1 WO 2019061476A1 CN 2017104939 W CN2017104939 W CN 2017104939W WO 2019061476 A1 WO2019061476 A1 WO 2019061476A1
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WIPO (PCT)
Prior art keywords
sleeve
tensioning shaft
air
latching
snap
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PCT/CN2017/104939
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English (en)
French (fr)
Inventor
蒋佳华
李言
吴壬华
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深圳欣锐科技股份有限公司
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Application filed by 深圳欣锐科技股份有限公司 filed Critical 深圳欣锐科技股份有限公司
Priority to PCT/CN2017/104939 priority Critical patent/WO2019061476A1/zh
Priority to CN201780084736.3A priority patent/CN110249210B/zh
Publication of WO2019061476A1 publication Critical patent/WO2019061476A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum

Definitions

  • the invention relates to the field of air intake connection, in particular to an air intake connection device and an air intake connection system.
  • the airtightness test In the production process of many instruments and equipment, the airtightness test of the instruments and equipment is required.
  • the airtightness test generally requires that only one port be inhaled, and the other mouths should be blocked to correctly measure the instruments and equipment. Air tightness.
  • the air intake connection device includes a handle 160, a tie rod 110, and a sleeve rod. 120, the rubber sleeve 130, the compression nut 140 and the air connection head 150, the specific operation is: pressing the handle 160 to drive the compression nut 140 upward through the rod 110, thereby compressing the rubber sleeve 130, making the rubber sleeve 130 thicker
  • the sealing connection with the mouth of the gas nozzle 170 is achieved, and then the air pipe in the sleeve 120 is ventilated by the air receiving head 150, and the gas is delivered into the air nozzle 170.
  • the air intake connecting device When the air intake connecting device is used, if the pressure generated by the air pressure inside the air nozzle 170 is greater than the friction between the rubber sleeve 130 and the air nozzle 170, the air intake connecting device is ejected, resulting in failure to ventilate. It will cause a safety accident.
  • the technical problem to be solved by the embodiments of the present invention is to provide an air intake connecting device and an air intake connecting system, which can be continuously ventilated and have good safety.
  • an air intake connecting device for sealing a connecting air nozzle including:
  • Pulling a shaft wherein the air is formed to form a gas passage, the tensioning shaft is located in the sleeve and movable relative to the sleeve, and the tensioning shaft is used for partially inserting into the air nozzle to achieve air communication ;
  • a sealing sleeve sleeved on the tensioning shaft and located between the tensioning shaft and the sleeve rod
  • the tensioning shaft moves relative to the sleeve to compress the sealing sleeve
  • the sealing sleeve is clamped by the tensioning rod and the sleeve to compress and expand to seal the nozzle and the tensioning shaft. connection;
  • the position of the snap-fit device during the rotation of the sleeve rod includes a snap-in position and a release position, when the snap-fit device is in the snap-fit Positioning the latching device for catching the air nozzle to prevent the air nozzle from being disengaged from the tensioning shaft, and at this time the latching device jacks up the tensioning shaft to compress the sealing sleeve Swollen.
  • the latching device includes a first latching member and a second latching member, wherein the first latching member and the second latching member are both hinged on the sleeve and The two latching members are oppositely disposed, and the first latching member and the second latching member are in the latching position when they are closed for catching the air nozzle.
  • the first engaging member includes a first pressing plate and a first clamping plate, the first pressing plate is hinged with the sleeve, and the first clamping plate is fixedly mounted on the first The pressure plate is away from one end of the hinge, the first card plate is used to catch the air nozzle;
  • the second card member includes a second pressure plate and a second card plate, and the second pressure plate is hinged with the sleeve The second card plate is fixedly mounted at one end of the second pressure plate away from the hinge, and the second card plate is used to catch the air nozzle.
  • the first clip or/and the second clip includes a protrusion
  • the tensioning shaft includes a tension cover that cooperates with the protrusion when the card The tab abuts the tensioning cap when the picking device is in the snap-fit position to compress the tensioning shaft and the sleeve to compress the sealing sleeve.
  • the air intake connecting device further includes a locking device that locks the latching device to prevent the latching device when the latching device is in the latching position
  • the snap device is turned to the release position.
  • the locking device includes a locking rod and a locking cap, and the first end of the locking rod is hinged to one of the first engaging member and the second engaging member
  • the first clip and the second clip are respectively provided with an opening, and the second end of the locking rod enters the opening when the latching device is in the latching position And fixed by the locking cap.
  • the tensioning shaft includes an abutting block, one end of the sealing sleeve abuts against the abutting block, and the other end of the sealing sleeve abuts the end of the sleeve close to the abutting block .
  • an end of the tensioning shaft away from the sealing sleeve is connected with a gas receiving head, and the gas receiving head is in communication with a gas passage of the tensioning shaft.
  • An embodiment of the present invention further provides an air intake connection system, including:
  • An intake connection device which is the above-described intake connection device
  • the gas nozzle is sleeved on the sealing sleeve, and the gas nozzle is provided with a rib or a groove, and the rib or groove cooperates with the engaging device to achieve the two.
  • the air nozzle is a gas nozzle of a high voltage power distribution box.
  • the air intake connecting device comprises a latching device hinged on the sleeve rod, wherein the position of the latching device during the rotation of the sleeve rod comprises a latching position and a releasing position, when the latching device is in the latching position In the position, the snap-in device is used to catch the air nozzle to prevent the air nozzle from being disengaged from the tensioning shaft, and at this time, the latching device jacks up the tensioning shaft to cause the sealing sleeve to be compressed and expanded.
  • the carding device can catch the air nozzle due to the presence of the snap device, preventing the air intake connector from being ejected, ensuring continuous ventilation without causing a safety accident, and safety. Higher.
  • Figure 1 is a perspective view of a prior art intake connecting device
  • Figure 2 is a cross-sectional view of a prior art intake connecting device
  • Figure 3 is a perspective view of an intake connecting device according to an embodiment of the present invention (the snapping device is in a release position);
  • FIG 4 is another perspective view of the air intake connecting device according to an embodiment of the present invention (the snapping device is in the latching position);
  • Figure 5 is a cross-sectional view of the intake connecting device according to an embodiment of the present invention (the snapping device is in the latching position);
  • An embodiment of the present invention provides an air intake connection device for sealing a connecting air nozzle, and the air nozzle may be a gas nozzle of a high-power power distribution box of a new energy vehicle.
  • the device includes a sleeve 220, a tensioning shaft 210, and a sealing sleeve 230.
  • the sleeve 220 is hollow, that is, the sleeve 220 has a first through hole therein, and the sleeve 220 is provided with a tensioning shaft 210, and the sleeve 220 is sleeved in the sleeve.
  • the tensioning shaft 210 is movable relative to the sleeve 220.
  • the length of the sleeve 220 is smaller than the length of the tensioning shaft 210, and the tensioning shaft 210 is hollow to form a gas passage.
  • the gas passage 213 is for conveying gas
  • the tensioning shaft 210 is for partially inserting the gas nozzle 270 to realize gas passage communication, so that the gas transmitted from the gas passage 213 can be delivered into the gas nozzle 270.
  • the sealing sleeve 230 is sleeved on the tensioning shaft 210, the sealing sleeve 230 is located below the sleeve 220 (please refer to FIG. 5), and the sealing sleeve 230 is located on the tensioning shaft 210.
  • the air intake connecting device further includes a locking device 300, and the engaging device 300 is hinged to the sleeve.
  • the sleeve 220 is provided with an articulated shaft
  • the snapping device 300 is provided with a hinge hole, and the hinge shaft is inserted into the hinge hole to realize the joint of the two, of course, the hinge Shaft and hinge The position of the hole can be reversed.
  • the position where the snap device 300 is rotated during the rotation of the sleeve 220 includes a snap position and a release position, and the snap device 300 is used to jam when the snap device 300 is in the snap position.
  • the air nozzle 270 prevents the air nozzle 270 from being disengaged from the tensioning shaft 210, thereby preventing the air nozzle 270 from being disengaged from the air intake connecting device, and at this time, the latching device 300 jacks up the tensioning shaft 210 to cause the sealing sleeve 230 to be
  • the compression is expanded to achieve a sealed connection of the gas nozzle 270 to the tensioning shaft 210, at which time gas can enter the gas nozzle 270 via the tensioning shaft 210.
  • the release position means that the snap device 300 is in a position where the gas nozzle 270 is not caught.
  • the air intake connecting device further includes a latching device 300, which is hinged on the sleeve 220, the position of the latching device 300 during the rotation of the sleeve 220 includes a latching position and a releasing position.
  • the carding device 300 is used to catch the air nozzle 270 to prevent the air nozzle 270 from being disengaged from the tensioning shaft 210, and the card is now engaged.
  • the device 300 jacks up the tensioning shaft 210 to cause the gland 230 to be compressed and expanded.
  • the chucking device 300 can catch the air nozzle 270 due to the presence of the snap device 300, preventing the air intake connecting device from being ejected, ensuring continuous ventilation without causing safety. Accidents are safer.
  • the latching device 300 includes a first latching member 310 and a second latching member 320.
  • the first latching member 310 and the second latching member 320 are both hinged on the sleeve 220 and The two are set relative to each other.
  • the hinge shaft includes a first hinge shaft and a second hinge shaft
  • the hinge hole includes a first hinge hole and a second hinge hole
  • the first hinge hole is disposed in the
  • the first hinge hole 310 is disposed on the second fastening component 320
  • the first fastening component 310 is hinged by the first hinge shaft and the first hinge hole.
  • the second clip 320 is hinged to the sleeve 220 by a second hinge shaft and a second hinge hole.
  • the first clip 310 is opposite to the second clip 320.
  • the first clip 310 is hinged to the left side of the sleeve 220, and the second clip is connected.
  • the member 320 is hinged to the right side of the sleeve 220 (see Figure 5).
  • the first clip 310 can be rotated about the first hinge axis, for example, the first clip 310 is rotated to an angle of approximately 0°, 30°, 60°, 85° with the sleeve 220, when When the first latching member 310 is rotated to be close to 0 degrees with the sleeve 220, the first latching member 310 catches the air nozzle 270, and the first latching member 310 is in the latching position. When the first latching member 310 does not catch the air nozzle 270, for example, when the first latching member 310 and the sleeve 220 are at an angle of 30°, 60°, 85°, etc., the first card at this time The connector 310 is in the release position.
  • the said The two latching members 320 are rotatable about the second hinge shaft, for example, the second latching member 320 is rotated to an angle of approximately 0°, 30°, 60°, 85°, etc. with the sleeve 220, when the second card
  • the connecting member 320 is rotated to be close to 0 degrees with the sleeve 220
  • the second engaging member 320 is caught by the air nozzle 270, and the second engaging member 320 is in the latching position.
  • the second latching member 320 does not catch the air nozzle 270, for example, when the second latching member 320 and the sleeve 220 are at an angle of 30°, 60°, and 85°, the second latching is performed at this time.
  • the piece 320 is in the release position.
  • the latching device 300 when the first latching member 310 and the second latching member 320 are both in the latching position, the latching device 300 is in the latching position, because the first latching member 310 and the second latching member The pieces 320 are relatively arranged, so that the force is even and the carding effect is good.
  • the first clip 310 includes a first pressing plate 311 and a first clamping plate 312.
  • the first pressing plate 311 is hinged to the sleeve 220, the first pressing plate 311 is provided with a first hinge hole, the first pressing plate 311 has a rectangular shape, and the first clamping plate 312 is fixedly mounted on the first plate
  • the first plate 312 is perpendicular to the first platen 311, and the first plate 312 is used for the card.
  • the first plate 312 is perpendicular to the first platen 311.
  • the first plate 312 is used for the card.
  • the air nozzle 270 is disposed, and the end surface of the first card plate 312 adjacent to the air nozzle 270 is a circular arc end surface, and the circular arc end surface is matched with the outer surface of the air nozzle 270 to achieve better matching with the air nozzle 270.
  • the second clamping member 320 includes a second pressing plate 321 and a second clamping plate 322.
  • the second pressing plate 321 is hinged with the sleeve 220.
  • the second pressing plate 321 is provided with a second hinge hole.
  • the second clamping plate 321 has a rectangular shape, and the second clamping plate 322 is fixedly mounted on one end of the second pressing plate 321 away from the hinge, specifically, is fixedly mounted on the end of the second pressing plate 321 away from the hinge by screws, the second clamping plate 322 is perpendicular to the second pressing plate 321 , the second clamping plate 322 is used to catch the air nozzle 270 , and the end surface of the second clamping plate 322 adjacent to the air nozzle 270 is a circular arc end surface, the circular arc The end face is adapted to match the outer surface of the air nozzle 270 to achieve better engagement with the air nozzle 270.
  • the first latching member 310 and the second latching member 320 both include a bump 330, and the bump 330 is located.
  • the first latching member 310 and the second latching member 320 are away from one end of the air nozzle 270, and the two protruding blocks 330 are fixedly mounted on the first pressing plate 311 and the second pressing plate 321 away from the first clamping plate 312, respectively.
  • the tensioning shaft 210 includes a tensioning cover 211 that cooperates with the protrusion 330, and the tensioning cover 211 is located at an end of the tensioning shaft 210 away from the air nozzle 270, when the first When the latching member 310 and the second latching member 320 are rotated toward the sleeve 220, the bump 330 gradually pushes up the tensioning cover 211 to cause the pulling The tightening shaft 210 moves toward the compression sealing sleeve 230.
  • the bump 330 pushes up the tensioning cover 211 to the highest height, that is, the sealing sleeve 230 is The compression is maximized, at which point the seal between the gas nozzle 270 and the tensioning shaft 210 is preferred. Additionally, in other embodiments of the invention, only one of the first and second clips may include a bump.
  • the air intake connecting device further includes a locking device 240, and the locking device 240 locks the latching device 300 when the latching device 300 is in the latching position to prevent the The snap device 300 is turned to the release position to further ensure safety.
  • the locking device 240 includes a locking lever 241 and a locking cap 242.
  • the first end of the locking lever 241 is hinged on one of the first latching member 310 and the second latching member 320.
  • the first end of the locking lever 241 is hinged to the first card.
  • the second latching member 320 is provided with an opening 323.
  • the opening 323 is an open gap, and the latch is when the latching device 300 is in the latching position.
  • the second end of the tight rod 241 enters the opening 323 and is fixed by the locking cap 242.
  • the locking cap 242 is a lock nut.
  • the locking device may further be a torsion spring, the torsion spring applying a force to cause the carding device to be in a latching position, when the carding device is in a release position
  • the torsion spring has a torsion that moves the snap-fit device toward the snap-fit position.
  • the tensioning shaft 210 includes a shaft body 214 and an abutting block 212.
  • the abutting block 212 and the tensioning cover 211 are respectively located at two ends of the shaft body 214, and the sealing sleeve One end of the sealing sleeve 230 abuts against the abutting block 212 , and the other end of the sealing sleeve 230 abuts against the end of the sleeve 220 adjacent to the abutting block 212 , that is, against the lower end of the sleeve 220 .
  • the tensioning shaft 210 moves in the direction of compressing the sealing sleeve 230, that is, when the tensioning shaft 210 moves upward, the abutting block 212 of the tensioning shaft 210 and the lower end portion of the sleeve 220 cooperate to seal.
  • the sleeve 230 compresses the sealing sleeve 230 to seal the gap between the shaft 210 and the gas nozzle 270.
  • the sealing sleeve 230 is a rubber sleeve.
  • the sealing sleeve 230 may also be other flexible sealing sleeves.
  • the end of the tensioning shaft 210 away from the sealing sleeve 230 is connected to the air receiving head 250,
  • the air receiving head 250 is in communication with the gas passage 213 of the tensioning shaft 210.
  • the embodiment of the present invention further provides an air intake connection system, including an air intake connection device and a gas nozzle 270, the air intake connection device is the above-mentioned air intake connection device, and the air nozzle 270 is sleeved on the sealing sleeve 230. And the gas nozzle 270 further has a portion above the sealing sleeve 230.
  • the gas nozzle 270 is provided with a rib 271 or a groove (the rib 271 in the figure), the rib 271 or the groove and the groove
  • the snap-on device 300 cooperates to achieve the hooking of the two.
  • the air nozzle 270 is a gas nozzle of a high-voltage power distribution box of a new energy vehicle.
  • the present invention has the following advantages:
  • the air inlet connecting device further comprises a latching device, which is hinged on the sleeve rod, the position of the latching device during the rotation of the sleeve rod includes a latching position and a releasing position, when the carding device is at the card
  • the catching device is configured to catch the air nozzle to prevent the air nozzle from being disengaged from the tensioning shaft when the position is closed, and at this time, the latching device jacks up the tensioning shaft to cause the sealing sleeve to be compressed and expanded.
  • the carding device can catch the air nozzle due to the presence of the snap device, preventing the air intake connector from being ejected, ensuring continuous ventilation without causing a safety accident, and safety. Higher.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or connected integrally; may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • installation shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise.
  • , or connected integrally may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Clamps And Clips (AREA)

Abstract

一种进气连接装置，用于密封连接气嘴，包括：套杆（220）、拉紧轴（210）、密封套（230）以及卡接装置（300）。密封套（230）套接在拉紧轴（210）上，且位于拉紧轴（210）与套杆（220）之间，拉紧轴（210）相对套杆（220）向压缩密封套（230）方向移动时，密封套（230）被拉紧轴（210）和套杆（220）夹紧以压缩胀大，以实现气嘴与拉紧轴（210）的密封连接。卡接装置（300）铰接在套杆（220）上，卡接装置（300）绕套杆（220）转动过程中所处的位置包括卡接位置和释放位置，当处在卡接位置时卡接装置（300）用于卡住气嘴以防止气嘴与拉紧轴（210）脱离，且此时卡接装置（300）顶起拉紧轴（210）以使密封套（230）被压缩胀大。该进气连接装置可持续通气且安全性好。

Description

一种进气连接装置及进气连接系统 技术领域
本发明涉及进气连接领域，尤其涉及一种进气连接装置及进气连接系统。
背景技术
在许多仪器设备生产过程中，都要对仪器设备作气密性测试，而气密性测试一般要求只从一个口部进气，其他口部要被封堵住，才能正确测出仪器设备的气密性。
现有的一种进气连接装置，应用于新能源汽车高压配电盒(PDU)气密性测试，请参见图1和图2，所述进气连接装置包括手柄160、拉杆110、套杆120、橡胶套130、压紧螺母140和接气头150，使用时具体操作为：压下手柄160以通过拉杆110带动压紧螺母140向上运动，从而压缩橡胶套130，使橡胶套130变粗，实现与气嘴170口部密封连接，然后通过接气头150向套杆120内的气管通气，气体被输送到气嘴170中。
在使用上述进气连接装置时，若气嘴170内部气压产生的压力大于橡胶套130与气嘴170之间的摩擦力，则会使所述进气连接装置喷出，导致无法通气，严重时会造成安全事故。
发明内容
本发明实施例所要解决的技术问题在于，提供一种进气连接装置及进气连接系统，可以持续通气且安全性好。
为了解决上述技术问题，本发明实施例提供了一种进气连接装置，用于密封连接气嘴，包括：
套杆，其中空；
拉紧轴，其中空以形成气体通道，所述拉紧轴位于所述套杆内并可相对所述套杆移动，所述拉紧轴用于部分插入所述气嘴中以实现气路连通；
密封套，其套接在所述拉紧轴上，且位于所述拉紧轴与所述套杆之间，所 述拉紧轴相对所述套杆向压缩所述密封套方向移动时所述密封套被拉紧杆和所述套杆夹紧以压缩胀大，以实现气嘴与所述拉紧轴的密封连接；
卡接装置，其铰接在所述套杆上，所述卡接装置绕所述套杆转动过程中所处的位置包括卡接位置和释放位置，当所述卡接装置处在所述卡接位置时所述卡接装置用于卡住所述气嘴以防止气嘴与所述拉紧轴脱离，且此时所述卡接装置顶起所述拉紧轴以使所述密封套被压缩胀大。
在本发明一实施例中，所述卡接装置包括第一卡接件和第二卡接件，所述第一卡接件和所述第二卡接件均铰接在所述套杆上且两者相对设置，所述第一卡接件和所述第二卡接件合拢用于卡住所述气嘴时处于所述卡接位置。
在本发明一实施例中，所述第一卡接件包括第一压板和第一卡板，所述第一压板与所述套杆铰接，所述第一卡板固定安装在所述第一压板远离铰接处的一端，所述第一卡板用于卡住所述气嘴；所述第二卡接件包括第二压板和第二卡板，所述第二压板与所述套杆铰接，所述第二卡板固定安装在所述第二压板远离铰接处的一端，所述第二卡板用于卡住所述气嘴。
在本发明一实施例中，所述第一卡接件或/和所述第二卡接件包括凸块，所述拉紧轴包括与所述凸块配合的拉紧盖，当所述卡接装置处于所述卡接位置时所述凸块顶起所述拉紧盖以使所述拉紧轴与所述套杆压缩所述密封套。
在本发明一实施例中，所述进气连接装置还包括锁紧装置，当所述卡接装置处在所述卡接位置时所述锁紧装置锁住所述卡接装置以防止所述卡接装置转到所述释放位置。
在本发明一实施例中，所述锁紧装置包括锁紧杆和锁紧帽，所述锁紧杆的第一端铰接在所述第一卡接件和所述第二卡接件之一上，所述第一卡接件和所述第二卡接件另一个上设有开口，当所述卡接装置处于所述卡接位置时所述锁紧杆的第二端进入所述开口并通过所述锁紧帽固定。
在本发明一实施例中，所述拉紧轴包括抵接块，所述密封套的一端抵住所述抵接块，所述密封套的另一端抵住所述套杆靠近抵接块的端部。
在本发明一实施例中，所述拉紧轴远离所述密封套的一端连接有接气头，所述接气头与所述拉紧轴的气体通道连通。
本发明实施例还提供一种进气连接系统，包括：
进气连接装置，其为上述的进气连接装置；
气嘴，其套在所述密封套上，所述气嘴上设有凸筋或凹槽，所述凸筋或凹槽与所述卡接装置配合以实现两者卡接。
在本发明一实施例中，所述气嘴为高压配电盒的气嘴。
实施本发明实施例，具有如下有益效果：
上述进气连接装置包括卡接装置，其铰接在套杆上，所述卡接装置绕套杆转动过程中所处的位置包括卡接位置和释放位置，当所述卡接装置处在卡接位置时所述卡接装置用于卡住所述气嘴以防止气嘴与所述拉紧轴脱离，且此时所述卡接装置顶起拉紧轴以使密封套被压缩胀大。从而，即使气嘴内气压较高，由于卡接装置的存在，卡接装置会卡住所述气嘴，防止进气连接装置喷出，保证持续进行通气，同时不会造成安全事故，安全性较高。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有技术进气连接装置的立体图；
图2是现有技术进气连接装置的剖视图；
图3是本发明一实施例进气连接装置的一个立体图(卡接装置处于释放位置)；
图4是本发明一实施例进气连接装置的另一个立体图(卡接装置处于卡接位置)；
图5是本发明一实施例进气连接装置的剖视图(卡接装置处于卡接位置)；
图示标号：
110-拉杆；120-套杆；130-橡胶套；140-压紧螺母；150-接气头；160-手柄；170-气嘴；210-拉紧轴；211-拉紧盖；212-抵接块；213-气体通道；214- 轴本体；220-套杆；230-密封套；240-锁紧装置；241-锁紧杆；242-锁紧帽；250-接气头；270-气嘴；271-凸筋；300-卡接装置；310-第一卡接件；311-第一压板；312-第一卡板；320-第二卡接件；321-第二压板；322-第二卡板；323-开口；330-凸块。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供了一种进气连接装置，用于密封连接气嘴，所述气嘴可以为新能源汽车高压配电盒的气嘴，请参见图3-图5，所述进气连接装置包括套杆220、拉紧轴210和密封套230。
在本实施例中，所述套杆220中空，也即所述套杆220内部有一个第一贯通孔，所述套杆220内设有拉紧轴210，所述套杆220套接在所述拉紧轴210上，所述拉紧轴210可相对所述套杆220移动，所述套杆220的长度小于所述拉紧轴210的长度，所述拉紧轴210中空以形成气体通道213，所述气体通道213用于传输气体，所述拉紧轴210用于部分插入所述气嘴270以实现气路连通，从而从气体通道213传输过来的气体可以输送到气嘴270中。在本实施例中，所述密封套230套接在所述拉紧轴210上，所述密封套230位于套杆220的下方(请参考图5)，所述密封套230位于拉紧轴210与套杆220之间，所述拉紧轴210相对套杆220向压缩密封套230方向移动时所述密封套230被拉紧杆和套杆220夹紧以压缩胀大，密封套230胀大后将拉紧轴210与气嘴270之间的间隙密封住，实现气嘴270与拉紧轴210的密封连接，在此处，向压缩密封套230方向移动在图5中为向上移动。
为了防止气嘴270中气压过大，从而导致进气连接装置被喷出，在本实施例中，所述进气连接装置还包括卡接装置300，所述卡接装置300铰接在所述套杆220上，在本实施例中，所述套杆220上设有铰接轴，所述卡接装置300上设有铰接孔，所述铰接轴插入铰接孔中以实现两者的铰接，当然铰接轴和铰 接孔的位置反过来也可以。所述卡接装置300绕套杆220转动过程中所处的位置包括卡接位置和释放位置，当所述卡接装置300处在卡接位置时所述卡接装置300用于卡住所述气嘴270以防止气嘴270与所述拉紧轴210脱离，进而防止气嘴270与进气连接装置脱离，且此时所述卡接装置300顶起拉紧轴210以使密封套230被压缩胀大，实现气嘴270与拉紧轴210的密封连接，此时气体可以经由拉紧轴210进入气嘴270。在本实施例中，所述释放位置是指所述卡接装置300处于没有卡住所述气嘴270的位置。
在本实施例中，由于进气连接装置还包括卡接装置300，其铰接在套杆220上，所述卡接装置300绕套杆220转动过程中所处的位置包括卡接位置和释放位置，当所述卡接装置300处在卡接位置时所述卡接装置300用于卡住所述气嘴270以防止气嘴270与所述拉紧轴210脱离，且此时所述卡接装置300顶起拉紧轴210以使密封套230被压缩胀大。从而，即使气嘴270内气压较高，由于卡接装置300的存在，卡接装置300会卡住所述气嘴270，防止进气连接装置喷出，保证持续进行通气，同时不会造成安全事故，安全性较高。
在本实施例中，所述卡接装置300包括第一卡接件310和第二卡接件320，所述第一卡接件310和第二卡接件320均铰接在套杆220上且两者相对设置。具体说来，在本实施例中，所述铰接轴包括第一铰接轴和第二铰接轴，所述铰接孔包括第一铰接孔和第二铰接孔，所述第一铰接孔设置在所述第一卡接件310上，所述第二铰接孔设置在所述第二卡接件320上，所述第一卡接件310通过第一铰接轴和第一铰接孔配合实现铰接在所述套杆220上，所述第二卡接件320通过第二铰接轴和第二铰接孔配合实现铰接在所述套杆220上。在本实施例中，所述第一卡接件310与所述第二卡接件320相对设置，例如所述第一卡接件310铰接在套杆220的左侧，所述第二卡接件320铰接在所述套杆220的右侧(请参见图5)。所述第一卡接件310可以绕第一铰接轴转动，例如所述第一卡接件310转动到与套杆220呈接近0°、30°、60°、85°等角度，当所述第一卡接件310转动到与所述套杆220接近0度时，所述第一卡接件310卡住所述气嘴270，此时第一卡接件310处于卡接位置，当所述第一卡接件310不卡住所述气嘴270时，例如第一卡接件310与所述套杆220呈30°、60°、85°等角度时，此时所述第一卡接件310处于释放位置。同样，所述第 二卡接件320可以绕第二铰接轴转动，例如所述第二卡接件320转动到与套杆220呈接近0°、30°、60°、85°等角度，当所述第二卡接件320转动到与所述套杆220接近0度时，此时所述第二卡接件320卡住所述气嘴270，此时第二卡接件320处于卡接位置，当所述第二卡接件320不卡住所述气嘴270时，例如第二卡接件320与所述套杆220呈30°、60°、85°等角度时，此时所述第二卡接件320处于释放位置。在本实施例中，当第一卡接件310和第二卡接件320都处于卡接位置时，此时卡接装置300处于卡接位置，由于第一卡接件310和第二卡接件320相对设置，从而受力均匀，卡接效果较好。
具体说来，所述第一卡接件310包括第一压板311和第一卡板312。所述第一压板311与所述套杆220铰接，所述第一压板311设有第一铰接孔，所述第一压板311呈长方形，所述第一卡板312固定安装在所述第一压板311远离铰接处的一端，具体为通过螺钉固定安装在第一压板311远离铰接处一端，所述第一卡板312与所述第一压板311垂直，所述第一卡板312用于卡住所述气嘴270，所述第一卡板312靠近气嘴270的端面为圆弧形端面，所述圆弧形端面用于与气嘴270外表面相匹配，以实现与气嘴270较好的卡接。所述第二卡接件320包括第二压板321和第二卡板322，所述第二压板321与所述套杆220铰接，所述第二压板321设有第二铰接孔，所述第二压板321呈长方形，所述第二卡板322固定安装在所述第二压板321远离铰接处的一端，具体为通过螺钉固定安装在第二压板321远离铰接处一端，所述第二卡板322与所述第二压板321垂直，所述第二卡板322用于卡住所述气嘴270，所述第二卡板322靠近气嘴270的端面为圆弧形端面，所述圆弧形端面用于与气嘴270外表面相匹配，以实现与气嘴270较好的卡接。
为了实现卡接装置300顶起所述拉紧轴210，在本实施例中，所述第一卡接件310和所述第二卡接件320都包括凸块330，所述凸块330位于第一卡接件310和第二卡接件320远离气嘴270的一端，两个所述凸块330分别固定安装在所述第一压板311和所述第二压板321远离第一卡板312、第二卡板322的一端，所述拉紧轴210包括与凸块330配合的拉紧盖211，所述拉紧盖211位于拉紧轴210远离气嘴270的一端，当所述第一卡接件310和第二卡接件320朝向套杆220转动时，所述凸块330逐渐顶起所述拉紧盖211以使所述拉 紧轴210向压缩密封套230方向移动，当所述卡接装置300处于卡接位置时，此时凸块330顶起所述拉紧盖211到最高的高度，也即此时密封套230被压缩最大，此时气嘴270与拉紧轴210之间的密封最好。另外，在本发明的其他实施例中，还可以只有第一卡接件和第二卡接件其中之一包括凸块。
为了防止在通气过程中，卡接装置300忽然由卡接位置转为释放位置，例如误触发等情形，导致危险。在本实施例中，所述进气连接装置还包括锁紧装置240，当所述卡接装置300处在卡接位置时所述锁紧装置240锁住所述卡接装置300以防止所述卡接装置300转到释放位置，从而进一步确保了安全。
具体说来，在本实施例中，所述锁紧装置240包括锁紧杆241和锁紧帽242。所述锁紧杆241第一端铰接在第一卡接件310和第二卡接件320其中之一上，在本实施例中，所述锁紧杆241的第一端铰接在第一卡接件310上，所述第二卡接件320上设有开口323，在本实施例中，所述开口323为外侧敞开的缺口，当所述卡接装置300处于卡接位置时所述锁紧杆241的第二端进入所述开口323并通过所述锁紧帽242固定，在本实施例中，所述锁紧帽242为锁紧螺母。从而，通过锁紧杆241和锁紧帽242，可以限制第一卡接件310和第二卡接件320的转动，从而可以防止卡接装置300转动到释放位置。另外，在本发明的其他实施例中，所述锁紧装置还可以是扭簧，所述扭簧施加作用力使所述卡接装置处于卡接位置，当卡接装置处于释放位置时所述扭簧具有使卡接装置朝卡接位置运动的扭力。
在本实施例中，所述拉紧轴210包括轴本体214和抵接块212，所述抵接块212和所述拉紧盖211分别位于所述轴本体214的两端，所述密封套230的一端抵住所述抵接块212，所述密封套230的另一端抵住所述套杆220靠近抵接块212的端部，也即抵住套杆220的下端部。从而，当拉紧轴210向压缩密封套230的方向移动时，也即拉紧轴210向上移动时，所述拉紧轴210的抵接块212与所述套杆220的下端部共同作用密封套230，使密封套230被压缩变形，从而密封拉紧轴210与气嘴270之间的间隙。
在本实施例中，所述密封套230为橡胶套，当然在本发明的其他实施例中，所述密封套230还可以为其他柔性密封套。
在本实施例中，所述拉紧轴210远离密封套230的一端连接接气头250， 所述接气头250与拉紧轴210的气体通道213连通。
本发明实施例还提供一种进气连接系统，包括进气连接装置和气嘴270，所述进气连接装置为上述的进气连接装置，所述气嘴270套在在所述密封套230上，且所述气嘴270在密封套230上方还有一部分，所述气嘴270上设有凸筋271或凹槽(图示中为凸筋271)，所述凸筋271或凹槽与所述卡接装置300配合以实现两者卡接。在本实施例中，所述气嘴270为新能源汽车高压配电盒的气嘴。
需要说明的是，本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其它实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。对于装置实施例而言，由于其与方法实施例基本相似，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
通过上述实施例的描述，本发明具有以下优点：
由于进气连接装置还包括卡接装置，其铰接在套杆上，所述卡接装置绕套杆转动过程中所处的位置包括卡接位置和释放位置，当所述卡接装置处在卡接位置时所述卡接装置用于卡住所述气嘴以防止气嘴与所述拉紧轴脱离，且此时所述卡接装置顶起拉紧轴以使密封套被压缩胀大。从而，即使气嘴内气压较高，由于卡接装置的存在，卡接装置会卡住所述气嘴，防止进气连接装置喷出，保证持续进行通气，同时不会造成安全事故，安全性较高。
可以理解的是，本发明的上述实施例在不冲突的情况下，可以相互结合来获得更多的实施例。
在本发明的描述中，需要理解的是，术语“中心”、“上”、“下”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特 征可以明示或者隐含地包括一个或者更多个该特征。在本发明的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (10)

  1. 一种进气连接装置，用于密封连接气嘴，其特征在于，包括：
    套杆，其中空；
    拉紧轴，其中空以形成气体通道，所述拉紧轴位于所述套杆内并可相对所述套杆移动，所述拉紧轴用于部分插入所述气嘴中以实现气路连通；
    密封套，其套接在所述拉紧轴上，且位于所述拉紧轴与所述套杆之间，所述拉紧轴相对所述套杆向压缩所述密封套方向移动时所述密封套被拉紧杆和所述套杆夹紧以压缩胀大，以实现气嘴与所述拉紧轴的密封连接；
    卡接装置，其铰接在所述套杆上，所述卡接装置绕所述套杆转动过程中所处的位置包括卡接位置和释放位置，当所述卡接装置处在所述卡接位置时所述卡接装置用于卡住所述气嘴以防止气嘴与所述拉紧轴脱离，且此时所述卡接装置顶起所述拉紧轴以使所述密封套被压缩胀大。
  2. 如权利要求1所述的进气连接装置，其特征在于，所述卡接装置包括第一卡接件和第二卡接件，所述第一卡接件和所述第二卡接件均铰接在所述套杆上且两者相对设置，所述第一卡接件和所述第二卡接件合拢用于卡住所述气嘴时处于所述卡接位置。
  3. 如权利要求2所述的进气连接装置，其特征在于，所述第一卡接件包括第一压板和第一卡板，所述第一压板与所述套杆铰接，所述第一卡板固定安装在所述第一压板远离铰接处的一端，所述第一卡板用于卡住所述气嘴；所述第二卡接件包括第二压板和第二卡板，所述第二压板与所述套杆铰接，所述第二卡板固定安装在所述第二压板远离铰接处的一端，所述第二卡板用于卡住所述气嘴。
  4. 如权利要求2所述的进气连接装置，其特征在于，所述第一卡接件或/和所述第二卡接件包括凸块，所述拉紧轴包括与所述凸块配合的拉紧盖，当所述卡接装置处于所述卡接位置时所述凸块顶起所述拉紧盖以使所述拉紧轴与 所述套杆压缩所述密封套。
  5. 如权利要求2所述的进气连接装置，其特征在于，所述进气连接装置还包括锁紧装置，当所述卡接装置处在所述卡接位置时所述锁紧装置锁住所述卡接装置以防止所述卡接装置转到所述释放位置。
  6. 如权利要求5所述的进气连接装置，其特征在于，所述锁紧装置包括锁紧杆和锁紧帽，所述锁紧杆的第一端铰接在所述第一卡接件和所述第二卡接件之一上，所述第一卡接件和所述第二卡接件另一个上设有开口，当所述卡接装置处于所述卡接位置时所述锁紧杆的第二端进入所述开口并通过所述锁紧帽固定。
  7. 如权利要求1-6任意一项所述的进气连接装置，其特征在于，所述拉紧轴包括抵接块，所述密封套的一端抵住所述抵接块，所述密封套的另一端抵住所述套杆靠近抵接块的端部。
  8. 如权利要求1-6任意一项所述的进气连接装置，其特征在于，所述拉紧轴远离所述密封套的一端连接有接气头，所述接气头与所述拉紧轴的气体通道连通。
  9. 一种进气连接系统，其特征在于，包括：
    进气连接装置，其为如权利要求1-6任意一项所述的进气连接装置；
    气嘴，其套在所述密封套上，所述气嘴上设有凸筋或凹槽，所述凸筋或凹槽与所述卡接装置配合以实现两者卡接。
  10. 如权利要求9所述的进气连接系统，其特征在于，所述气嘴为高压配电盒的气嘴。
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