WO2014201781A1 - 具有快换结构的吹气枪 - Google Patents

具有快换结构的吹气枪 Download PDF

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Publication number
WO2014201781A1
WO2014201781A1 PCT/CN2013/084655 CN2013084655W WO2014201781A1 WO 2014201781 A1 WO2014201781 A1 WO 2014201781A1 CN 2013084655 W CN2013084655 W CN 2013084655W WO 2014201781 A1 WO2014201781 A1 WO 2014201781A1
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WO
WIPO (PCT)
Prior art keywords
gun body
gun
push rod
limiting piece
disposed
Prior art date
Application number
PCT/CN2013/084655
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English (en)
French (fr)
Inventor
杨明军
邹程伟
Original Assignee
Yang Mingjun
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yang Mingjun filed Critical Yang Mingjun
Publication of WO2014201781A1 publication Critical patent/WO2014201781A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/005—Nozzles or other outlets specially adapted for discharging one or more gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices

Definitions

  • the invention relates to a blow gun for a changeable working head.
  • Blow guns can be used in many engineering or machining applications, and different applications require different nozzles. It is common for air blowers to fit multiple nozzles. It is best to replace the working head with a blower gun quickly, easily and securely. Moreover, the replacement structure cannot be complicated in structure, and the complicated structure means high cost and difficult maintenance.
  • US Patent No. 6,663,023 B1 discloses a quick change structure of a gun nozzle. Although this design can realize quick change of the nozzle, the structure is complicated and the parts are many, which is not only high in processing cost but also easy to damage; and cannot be operated by one hand. Not convenient enough; can not be applied to tire pressure guns.
  • the quick-change structure of the nozzle disclosed in U.S. Patent No. 4,919,334 is a combination of a plurality of plastic threaded sleeves. This solution can prevent the rotation between the nozzle and the gun body, but the thread is combined, the operation is troublesome, and the replacement of the functional part cannot be performed by one hand; secondly, the thread of the plastic is not reliable.
  • U.S. Patent No. 6,976, 640 is easy to replace, but still requires both hands to operate at the same time and cannot be replaced with one hand; in addition, the nozzle cannot be positioned in the direction of rotation and cannot be used in applications where there is air pressure.
  • the invention overcomes the above disadvantages of the prior art, and provides a convenient and capable of replacing the nozzle
  • a device for controlling the air flow, an air outlet pipe, and a through hole for inserting the nozzle joint at the front of the gun body wherein: a quick change device is arranged at a position in front of the end portion of the air outlet pipe, and the quick change device is arranged In the gun body, the quick change device includes:
  • a push rod parallel to the outlet pipe the push rod is provided with a slope at a portion corresponding to the guide groove; the rear portion of the push rod passes through the rear end of the gun body as a manual operation handle; the push rod and the gun
  • a first spring is disposed between the body, the first spring pushes the push rod backward to reset the push rod;
  • a limit piece is slidably disposed in the guide groove, and an upper portion of the limit piece is slidably hung on The inclined surface of the push rod;
  • a second spring is disposed between the limiting piece and the gun body, and the second spring presses the limiting piece downward, so that the lower edge of the limiting piece enters the first of the interchangeable nozzle joint Inside the groove;
  • a replaceable nozzle joint has a conduit connected to the outlet pipe at the center thereof, and a first groove for inserting the limiting piece on the upper portion for coupling with the gun body.
  • beveled portion of the push rod is a cone.
  • replaceable nozzle joint is provided with a shoulder
  • gun body through hole is provided with a second groove matching the shoulder to prevent the interchangeable nozzle joint and the gun body Turn.
  • a sealing ring is disposed on the front portion of the gun body, and the sealing ring outer casing is provided with a sealing ring collar, and the sealing ring collar is sealingly connected with the through hole.
  • the limiting piece is disposed on a limiting piece.
  • the push rod When the muzzle needs to be replaced, the push rod is pushed forward from the handle, the limit piece slides along the inclined surface of the push rod, the limit piece is lifted, and the lower edge of the limit piece is separated from the first of the replaceable nozzle joint Concave Slot, the gun nozzle can be removed from the gun body at this time.
  • the installation of the nozzle is simpler.
  • the nozzle joint is pushed into the through hole of the gun body.
  • the limit piece is inserted into the first spring under the push of the second spring. Groove to connect the muzzle fitting to the gun body.
  • the shoulder of the muzzle joint must be aligned with the second groove of the through hole of the gun body to allow the nozzle joint to enter the through hole. Therefore, the muzzle joint cannot rotate relative to the gun body.
  • the invention has the advantages that: the nozzle can be replaced conveniently and quickly, and the operation can be performed with one hand, the nozzle and the gun body can be prevented from rotating, and the utility model is suitable for air pressure; and the structure is simple and the cost is low.
  • Figure 1 is a schematic view of the overall structure of the present invention.
  • Figure 2 is a diagram showing the fastening state of the nozzle joint of the present invention.
  • Figure 3 is a diagram showing the release state of the nozzle joint of the present invention.
  • Figure 4 is an exploded view of the coupling assembly of the present invention.
  • Figure 5 is a schematic view of the initial state of the present invention.
  • Fig. 6 is a schematic view showing the push state of the push rod of the present invention.
  • Fig. 7 is a view showing the state in which the lower end of the limiting piece is disengaged from the first groove when the pusher is pushed forward.
  • a blow gun having a quick-change structure includes a gun body 1 adapted to pass airflow, the gun body 1 having a device for controlling air flow, an air outlet pipe, and a front portion 11 of the gun body for providing a gun
  • the through hole 2 into which the nozzle joint 6 is inserted is provided with a quick change device at a position in front of the end of the air outlet pipe, and the quick change device is disposed in the gun body 1.
  • the quick change device includes:
  • a limiting piece 5 is slidably disposed in the guiding groove 3, and an upper portion of the limiting piece 5 is slidably hung on the inclined surface 41 of the push rod 4; between the limiting piece 5 and the gun body 1 a second spring 51 is provided, and the second spring 51 presses the limiting piece 5 downwardly, so that the lower edge of the limiting piece 5 enters the first groove 62 of the interchangeable nozzle joint 6;
  • a replaceable nozzle joint 6 has a conduit connected to the outlet pipe at the center thereof, and a first groove for inserting the stopper piece 5 at the upper portion thereof to be coupled with the gun body 1.
  • portion of the push rod 4 having the inclined surface 41 is a cone.
  • the interchangeable nozzle joint 6 is provided with a shoulder 61, and the gun body through hole 2 is provided with a second groove 21 engaged with the shoulder 61 to prevent the interchangeable nozzle joint 6 Rotate between the gun body.
  • the front portion 11 of the gun body is provided with a sealing ring 7, and the sealing ring 7 is provided with a sealing ring collar 8, and the sealing ring 8 is sealingly connected with the through hole 2.
  • limiting piece 5 is disposed on a limiting piece holder 52.
  • the push rod 4 When the muzzle needs to be replaced, the push rod 4 is pushed forward from the handle, the limiting piece 5 slides along the inclined surface 41 on the push rod 4, the limiting piece 4 is lifted up, and the lower edge of the limiting piece 4 is disengaged and replaceable.
  • the first groove 62 of the muzzle joint 6 can be removed from the gun body 1 at this time. The nozzle is more easily installed, and the nozzle joint 6 is pushed into the through hole 2 of the gun body 1. When the first groove of the joint is aligned with the limit piece, the limit piece is pushed under the second spring. Insert the first groove, Connect the muzzle fitting to the gun body.
  • the shoulder 61 of the muzzle joint 6 must be aligned with the second recess 21 of the through hole 2 of the gun body 1 to allow the nozzle joint 6 to enter the through hole 2. Therefore, the muzzle joint 6 cannot rotate relative to the gun body 1.

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Abstract

一种具有快换结构的吹气枪，包括适于气流通过的枪身（1），所述的枪身（1）内有控制气流的装置、出气管，枪身前部（11）设有供枪嘴接头（6）插入的通孔（2），出气管的端部的前方位置装有快换装置，所述的快换装置设置在枪身（1）内，所述的快换装置包括一个垂直于所述的出气管的导槽（3）、一个平行于所述的出气管的推杆（4）、一个限位片（5）可滑动地设置在所述的导槽（3）内，以及一个可换枪嘴接头（6），其中心有与所述的出气管连接的导管，其上部有供限位片（5）插入的插槽，以便与枪身（1）结合。可防止枪嘴与枪身相对转动，适用于有气压场合。

Description

具有快换结构的吹气枪
技术领域
本发明涉及一种可换工作头的吹气枪。
背景技术
吹气枪可以适用于许多工程或加工场合，不同的应用需要不同的 枪嘴。吹气枪适配多个枪嘴是常见的情形。吹气枪更换工作头最好能 够快速、 方便、 牢固。 并且这种更换结构不能结构复杂， 复杂的结构 意味着成本高、 难以维护。
美国专利 US6,663,023B1公开了一种枪嘴的快换结构， 这种设计 虽然能够实现快速更换枪嘴， 但是结构复杂、 零件多， 不仅加工成本 高，还容易损坏； 并且不能单手操作，不够方便； 不能适用于胎压枪。
美国专利 US4, 919， 334公开的枪嘴的快换结构， 是多个塑料螺 紋套的结合的技术方案。这种方案能够防止枪嘴与枪身之间转动， 但 是螺紋结合的方式， 操作很麻烦， 不能单手操作功能部分的更换； 其 次， 塑料的螺紋， 使用的可靠性不好。
美国专利 US6, 976， 640虽然更换方便程度上很好， 但是仍然需 要双手同时操作， 不能用单手更换； 另外， 枪嘴在转动方向上不能定 位， 并且不能适用于有气压的场合。
发明内容
本发明要克服现有技术的上述缺点， 提供一种更换枪嘴方便、能 内有控制气流的装置、出气管，枪身前部设有供枪嘴接头插入的通孔， 其特征在于： 出气管的端部的前方位置装有快换装置， 所述的快换装 置设置在枪身内， 所述的快换装置包括：
一个垂直于所述的出气管的导槽；
一个平行于所述的出气管的推杆，所述的推杆在对应于导槽的部 位设有斜面； 推杆的后部穿出枪身的后端， 作为手动操作手柄； 推杆 与枪身之间设有第一弹簧， 第一弹簧将推杆向后推， 以便推杆复位； 一个限位片可滑动地设置在所述的导槽内， 限位片的上部可滑动 地挂在所述的推杆的斜面上； 限位片与枪身之间设有第二弹簧， 第二 弹簧将限位片向下压，使限位片的下缘进入可换枪嘴接头的第一凹槽 内；
一个可换枪嘴接头， 其中心有与所述的出气管连接的导管， 其上 部有供限位片插入的第一凹槽， 以便与枪身结合。
进一步， 所述的推杆的带斜面的部位是圆锥体。
进一步， 所述的可换枪嘴接头上设有凸肩， 所述的枪身通孔上设 有与所述凸肩配合的第二凹槽， 以防止可换枪嘴接头与枪身之间转 动。
进一步， 所述枪身前部上设有密封圈， 所述密封圈外套设有密封 圈套环， 所述密封圈套环与所述通孔密封连接。
进一步， 所述限位片设在一限位片座上。
在需要更换枪嘴时， 将推杆从手柄处向前推， 限位片顺推杆上的 斜面滑动， 限位片被上提， 限位片的下缘脱离可换枪嘴接头的第一凹 槽， 此时就可以将枪嘴从枪身中取下。 枪嘴的安装则更为简便， 将枪 嘴接头推入枪身的通孔中， 当接头的第一凹槽对准限位片时， 限位片 在第二弹簧的顶推下插入第一凹槽， 使枪嘴接头与枪身连接。
同时， 枪嘴接头的凸肩必须与枪身的通孔的第二凹槽对准， 才能 使枪嘴接头进入通孔。 因此， 枪嘴接头无法与枪身发生相对转动。
本发明的优点是： 更换枪嘴方便快速、 能够单手操作， 可防止 枪嘴与枪身转动， 适用于有气压场合； 同时结构简单， 成本低。
附图说明
图 1为本发明整体结构示意图。
图 2为本发明枪嘴接头扣紧状态图。
图 3为本发明枪嘴接头释放状态图。
图 4为本发明联接组件分解图。
图 5是本发明初始状态示意图。
图 6是本发明推杆往前推动状态示意图。
图 7 是本发明向前推动推杆时限位片下端脱离第一凹槽状态示 意图。
具体实施方式
参照图 1至图 7， 具有快换结构的吹气枪， 包括适于气流通过的 枪身 1， 所述的枪身 1 内有控制气流的装置、 出气管， 枪身前部 11 设有供枪嘴接头 6插入的通孔 2,出气管的端部的前方位置装有快换装 置， 所述的快换装置设置在枪身 1内， 所述的快换装置包括：
一个垂直于所述的出气管的导槽 3; 一个平行于所述的出气管的推杆 4， 所述的推杆 4在对应于导槽 3的部位设有斜面 41; 推杆 4的后部穿出枪身的后端， 作为手动操作 手柄； 推杆 4与枪身 1之间设有第一弹簧 42， 第一弹簧 42将推杆 4 向后推， 以便推杆 4复位；
一个限位片 5可滑动地设置在所述的导槽 3内，限位片 5的上部 可滑动地挂在所述的推杆 4的斜面 41上； 限位片 5与枪身 1之间设 有第二弹簧 51， 第二弹簧 51将限位片 5向下压， 使限位片 5的下缘 进入可换枪嘴接头 6的第一凹槽 62内；
一个可换枪嘴接头 6， 其中心有与所述的出气管连接的导管， 其 上部有供限位片 5插入的第一凹槽， 以便与枪身 1结合。
进一步， 所述的推杆 4的带斜面 41的部位是圆锥体。
进一步， 所述的可换枪嘴接头 6上设有凸肩 61， 所述的枪身通 孔 2上设有与所述凸肩 61配合的第二凹槽 21， 以防止可换枪嘴接头 6与枪身之间转动。
进一步， 所述枪身前部 11上设有密封圈 7， 所述密封圈 7外套 设有密封圈套环 8， 所述密封圈套环 8与所述通孔 2密封连接。
进一步， 所述限位片 5设在一限位片座 52上。
在需要更换枪嘴时，将推杆 4从手柄处向前推， 限位片 5顺推杆 4上的斜面 41滑动， 限位片 4被上提， 限位片 4的下缘脱离可换枪 嘴接头 6的第一凹槽 62， 此时就可以将枪嘴从枪身 · 1中取下。枪嘴 的安装则更为简便，将枪嘴接头 6推入枪身 1的通孔 2中， 当接头的 第一凹槽对准限位片时， 限位片在第二弹簧的顶推下插入第一凹槽， 使枪嘴接头与枪身连接。
同时， 枪嘴接头 6的凸肩 61必须与枪身 1的通孔 2的第二凹槽 21对准， 才能使枪嘴接头 6进入通孔 2。 因此， 枪嘴接头 6无法与枪 身 1发生相对转动。

Claims

O 2014/201781 权 利 要 求 书 PCT/CN2013/084655
1. 具有快换结构的吹气枪， 包括适于气流通过的枪身， 所述的 枪身内有控制气流的装置、 出气管， 枪身前部设有供枪嘴接头插入的 通孔， 其特征在于： 出气管端部的前方位置装有快换装置， 所述的快 换装置设置在枪身内， 所述的快换装置包括：
一个垂直于所述的出气管的导槽；
一个平行于所述的出气管的推杆，所述的推杆在对应于导槽的部 位设有斜面； 推杆的后部穿出枪身的后端， 作为手动操作手柄； 推杆 与枪身之间设有第一弹簧， 第一弹簧将推杆向后推， 以便推杆复位； 一个限位片可滑动地设置在所述的导槽内， 限位片的上部可滑动 地挂在所述的推杆的斜面上； 限位片与枪身之间设有第二弹簧， 第二 弹簧将限位片向下压，使限位片的下缘进入可换枪嘴接头的第一凹槽 内；
一个可换枪嘴接头， 其中心有与所述的出气管连接的导管， 其上 部有供限位片插入的第一凹槽， 以便与枪身结合。
2.如权利要求 1所述的吹气枪， 其特征在于： 所述的推杆的带斜 面的部位是圆锥体。
3.如权利要求 1或 2所述的吹气枪， 其特征在于： 所述的可换枪 嘴接头上设有凸肩，所述的枪身通孔上设有与所述凸肩配合的第二凹 槽， 以防止可换枪嘴接头与枪身之间转动。
4.如权利要求 3所述的吹气枪， 其特征在于： 所述枪身前部上设 有密封圈， 所述密封圈外套设有密封圈套环， 所述密封圈套环与所述 通孔密封连接。 5、 如权利要求 4所述的吹气枪， 其特征在于： 所述限位片设在 一限位片座上。
PCT/CN2013/084655 2013-06-18 2013-09-30 具有快换结构的吹气枪 WO2014201781A1 (zh)

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CN201310244762.1 2013-06-18
CN201310244762.1A CN103341420B (zh) 2013-06-18 2013-06-18 具有快换结构的吹气枪

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EP0885661A2 (en) * 1997-05-22 1998-12-23 Interpump Group S.P.A. Spray gun with quick-fitting connector
US6663023B1 (en) * 2002-08-29 2003-12-16 Wuu-Cheau Jou Multipurpose unit air gun-tool
US6976640B2 (en) * 2003-12-04 2005-12-20 Kuo-Liang Chen Air gun with a quick-releasing device
CN201186426Y (zh) * 2008-04-01 2009-01-28 浙江荣鹏气动工具有限公司 一种气钉枪可调单击、撞击快换装置
CN201205534Y (zh) * 2008-06-02 2009-03-11 宗茂企业有限公司 电动喷枪快拆装置

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