WO2012051846A1 - 便携式气泵 - Google Patents

便携式气泵 Download PDF

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Publication number
WO2012051846A1
WO2012051846A1 PCT/CN2011/073500 CN2011073500W WO2012051846A1 WO 2012051846 A1 WO2012051846 A1 WO 2012051846A1 CN 2011073500 W CN2011073500 W CN 2011073500W WO 2012051846 A1 WO2012051846 A1 WO 2012051846A1
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WO
WIPO (PCT)
Prior art keywords
piston
connecting rod
air pump
portable air
cylinder
Prior art date
Application number
PCT/CN2011/073500
Other languages
English (en)
French (fr)
Inventor
岑建力
Original Assignee
宁波沃伟力学工业技术有限公司
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Publication date
Application filed by 宁波沃伟力学工业技术有限公司 filed Critical 宁波沃伟力学工业技术有限公司
Publication of WO2012051846A1 publication Critical patent/WO2012051846A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
    • B60S5/04—Supplying air for tyre inflation
    • B60S5/043—Supplying air for tyre inflation characterised by the inflation control means or the drive of the air pressure system
    • B60S5/046—Supplying air for tyre inflation characterised by the inflation control means or the drive of the air pressure system using electrical or electronical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • F04B33/005—Pumps actuated by muscle power, e.g. for inflating specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric

Definitions

  • the present invention relates to a portable air pump, and more particularly to a portable air pump suitable for charging a small vehicle tire or a pneumatic seat.
  • a portable air pump used in a small-sized vehicle in the prior art adopts a structure in which a piston and a connecting rod are integrally connected (for example, a structure embodied by ZL03229245.7), which is converted into a straight line due to a circular motion when the piston is ascending (or descending).
  • the piston as a whole is a large round and small truncated cone structure, that is, the piston surface is inclined when the piston moves up and down, and the compression working surface of the piston is slightly elliptical, which affects the cylinder seal to a certain extent. Insufficient suction, the maximum pressure and maximum flow are affected when the piston is up, and the second seal is not provided in the lower part of the piston, which reduces the efficiency of the whole machine. At the same time, since the compression working surface is elliptical, the seal of the piston is unevenly worn. Further increase the maintenance workload after the air pump is used. SUMMARY OF THE INVENTION The present invention is to overcome the above-mentioned deficiencies in the prior art.
  • the utility model provides a portable air pump, which is used for charging a small vehicle tire or a pneumatic seat, and comprises a driving motor and a pump body assembly. The lower end of the piston connecting rod in the pump body assembly passes through the eccentric wheel and the driving motor.
  • Connecting, and receiving the driving motor drive, the circular motion, the lower end of the piston connecting rod and the eccentric wheel are connected by a rotary joint; the upper end of the piston connecting rod is rotatably connected with the piston; the circular motion of the lower end of the piston connecting rod is converted into the upper end of the piston connecting rod
  • the reciprocating linear motion of the closed cylinder formed by the cylinder liner and the cylinder head Preferably, the lower end of the piston rod and the connection with the eccentric are provided with a first bearing, and the piston rod is rotatably movably connected to the eccentric by the first bearing.
  • the upper end of the piston connecting rod and the piston are connected with a second bearing, and the piston connecting rod is rotatably connected to the piston through the second bearing and using the shaft pin.
  • the second sealing member is disposed along the circumference of the piston near the skirt position, and the second sealing member is formed by a sealing jaw.
  • the pump body assembly includes a heat sink, and the heat sink is a heat dissipating fin disposed along the circumferential direction of the cylinder sleeve and extending in the direction of movement of the piston.
  • the cylinder head is provided with heat dissipating fins which are arranged along the circumferential direction of the cylinder head and extend in the direction of movement of the piston.
  • the piston is always in a linear motion state in the cylinder body, ensuring the sealing effect, and at the same time, the second sealing member can be disposed, which further ensures the linearity of the cylinder movement and Sealing property
  • FIG. 1 is an exploded perspective view of a portable air pump of the present invention
  • Fig. 2 is a front view of the portable air pump of the present invention
  • Fig. 3 is a cross-sectional view taken along line A-A of Fig. 2.
  • the portable air pump of the present invention comprises a driving motor 1, a pump body assembly and other accessories, wherein the pump body assembly is composed of a cylinder head 5, a cylinder liner 4, a piston 3, and a piston seal (The first sealing jaw 31, the sealing pressure ring 32 and the second sealing jaw 34 are formed, the piston rod 2, the heat sink 6, the air inlet device 35 and the exhaust device 51; the lower end of the piston rod 2 passes through the eccentric 11 It is connected to the drive motor 1 and driven by the drive motor 1, and the piston link 2 is rotatably connected with the eccentric; the upper end of the piston link 2 is rotatably connected to the piston 3. Further, as shown in FIG. 1 and FIG.
  • the lower end of the piston rod 2 is provided with a first bearing 21, and the end of the eccentric 11 is inserted into the inner space of the first bearing 21, so that the piston rod 2 and the eccentric wheel 11 are rotated after installation.
  • the movable connection that is, the lower end of the piston rod is circularly moved with the eccentric shaft, the end of the eccentric shaft is relatively rotated inside the first bearing 21; the upper end of the piston rod 2 is provided with the second bearing 22, and the upper end of the piston rod 2 is passed the second
  • the bearing 22 is rotatably connected to the piston 3 by using the shaft pin 33; the driving motor 1 drives the piston 3 through the piston connecting rod 2 to reciprocate linearly in the closed cylinder formed by the cylinder liner 4 and the cylinder head 5, and the piston and the connecting rod rotate relative to each other.
  • the piston 3 compresses the gas that has entered the cylinder through the intake device 35, and is then forced out by the exhaust pipe 8 through the cylinder head exhaust hole 52 through the exhaust device 51.
  • the heat sink 6 is a heat dissipating fin extending in the piston moving direction and disposed circumferentially around the cylinder sleeve; the cylinder head 5 is provided with heat dissipating fins around the cylinder head in the piston moving direction.
  • the auxiliary components of the portable air pump are composed of a casing 1, a front cover 71, an exhaust pipe 8, a power plug 9, a power cord, and the like.
  • the utility model is connected by the rotation between the piston and the connecting rod, so that the piston is always in a linear motion state in the cylinder body, the sealing effect is ensured, and the second sealing member can be set to further ensure The linearity and sealing of the gas movement are ensured; at the same time, the uniform wear of the piston seal is ensured, the working life of the seal is prolonged, and the maintenance workload after the use of the air pump is reduced.
  • the above disclosure is only one specific embodiment of the present invention, but the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall into the present utility model. Type of protection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Compressor (AREA)

Description

便携式气泵 技术领域 本实用新型涉及一种便携式气泵， 特别涉及一种适用于小型车辆轮 胎或气嚢座椅充气的便携式气泵。 背景技术 目前现有技术中小型车辆使用的便携式气泵采用的是活塞与连杆一 体连接的结构 （如 ZL03229245.7所体现的结构）， 当活塞上行（或下行） 时由于由圆周运动转变为直线运动，活塞整体为上大下小的圆台形结构， 即活塞在做上下运动时活塞面出现了倾斜， 活塞的压缩工作面呈微小椭 圆形， 在一定程度上影响了缸体密封， 活塞下行时吸气不足， 活塞上行 时影响了最高气压和最大流量， 且活塞下部无法设置第二密封件， 这使 整机效率下降； 同时由于压缩工作面呈椭圆形， 使得活塞的密封件磨损 不均， 进一步增加了气泵使用后的维修工作量。 实用新型内容 本实用新型是为了克服上述现有技术中缺陷， 通过设置活塞与连杆 之间的旋转活动连接， 使得活塞在缸体内始终处于直线运动状态， 保障 了缸体的气密性， 同时保障了活塞密封件的均匀磨损。 本实用新型提供了一种便携式气泵， 用于小型车辆轮胎或气嚢座椅 充气时使用， 包括驱动电机和泵体总成， 泵体总成中的活塞连杆的下端 通过偏心轮与驱动电机连接， 并接受驱动电机驱动故圆周运动， 活塞连 杆下端与偏心轮之间为旋转活动连接； 活塞连杆的上端与活塞旋转活动 连接； 活塞连杆下端的圆周运动转化为活塞连杆上端在缸套与缸盖所形 成的封闭缸体内的往复直线运动。 优选地， 活塞连杆的下端、 与偏心轮的连接处设有第一轴承， 活塞 连杆通过所述第一轴承与偏心轮旋转活动连接。 优选地， 活塞连杆的上端、 与活塞连接处设有第二轴承， 活塞连杆 通过第二轴承并使用轴销与活塞旋转活动连接。 优选地， 活塞靠近裙边位置处沿活塞周向设置第二密封件， 第二密 封件由密封圏构成。 优选地， 泵体总成包括散热片， 散热片为沿缸套周向设置、 并沿活 塞运动方向延伸的散热翅片。 优选地， 缸盖上设置散热翅片， 散热翅片沿缸盖周向设置并沿活塞 运动方向延伸。 与现有技术相比， 本实用新型具有如下有益效果：
1、通过活塞与连杆之间的旋转活动连接， 使得活塞在缸体内始终处 于直线运动状态， 保证了密封效果， 同时能够设置的第二密封件， 这进 一步保证了气缸运动的直线性和密封性；
2、 同时保证了活塞密封件的均勾磨损， 延长了密封件的工作寿命， 减少了气泵使用后的维修工作量。 附图说明 图 1是本实用新型便携式气泵的分解立体图； 图 2是本实用新型便携式气泵的前视图； 图 3是图 2的 A-A向剖视图。 结合附图在其上标记以下附图标记：
1-驱动电机， 11-偏心轮， 2-活塞连杆， 21-第一轴承， 22-第二轴承， 3-活塞, 31-第一密封圏， 32-密封圏压环， 33-轴销, 34-第二密封圏， 35- 进气装置， 4-缸套， 5-缸盖， 51-排气装置， 52-缸盖排气孔， 6-散热片， 7-机壳， 71-前盖, 8-排气管, 9-电源插头。 具体实施方式 下面结合附图， 对本实用新型的一个具体实施方式进行详细描述， 但应当理解本实用新型的保护范围并不受具体实施方式的限制。 本实用新型的便携式气泵如图 1-3所示， 包括驱动电机 1、 泵体总成 及其它辅件， 其中泵体总成由缸盖 5、 缸套 4、 活塞 3、 活塞密封件（由 第一密封圏 31、 密封圏压环 32以及第二密封圏 34构成）、 活塞连杆 2、 散热片 6、 进气装置 35及排气装置 51构成； 活塞连杆 2的下端通过偏 心轮 11与驱动电机 1连接并受驱动电机 1驱动，活塞连杆 2与偏心轮之 间为旋转活动连接； 活塞连杆 2的上端与活塞 3旋转活动连接。 进一步如图 1、 3所示， 活塞连杆 2的下端设第一轴承 21 , 偏心轮 11的端部插入第一轴承 21的内侧空间中， 这样安装后活塞连杆 2与偏 心轮 11 形成旋转活动连接， 即活塞连杆下端随偏心轴做圆周运动的同 时， 偏心轴端部在第一轴承 21内侧相对旋转； 活塞连杆 2的上端设第二 轴承 22, 活塞连杆 2上端通过第二轴承 22并使用轴销 33与活塞 3旋转 连接； 驱动电机 1通过活塞连杆 2驱动活塞 3在缸套 4与缸盖 5所形成 的封闭缸体内做往复直线运动， 活塞与连杆相对转动； 活塞 3对通过进 气装置 35进入缸体的气体进行压缩后， 通过排气装置 51经缸盖排气孔 52由排气管 8压出。 进一步如图 1-2所示， 散热片 6为沿活塞运动方向延伸、 绕缸套周 向设置的散热翅片； 缸盖 5沿活塞运动方向、 绕缸盖周向设置散热翅片。 进一步如图 1-2所示， 便携式气泵的辅件由机壳 1、 前盖 71、 排气 管 8、 电源插头 9及电源线等构成。 与现有技术相比，本实用新型通过活塞与连杆之间的旋转活动连接， 使得活塞在缸体内始终处于直线运动状态， 保证了密封效果， 且能够设 置的第二密封件， 进一步保证了气虹运动的直线性和密封性； 同时保证 了活塞密封件的均匀磨损， 延长了密封件的工作寿命， 减少了气泵使用 后的维修工作量。 以上公开的仅为本实用新型的一个具体实施例， 但是， 本实用新型 并非局限于此， 任何本领域的技术人员能思之的变化都应落入本实用新 型的保护范围。

Claims

权 利 要 求 书
1. 一种便携式气泵， 用于小型车辆轮胎或气嚢座椅充气时使用， 包 括驱动电机和泵体总成， 其特征在于， 泵体总成中的活塞连杆的下端通 过偏心轮与驱动电机连接， 并接受驱动电机驱动故圆周运动， 活塞连杆 下端与偏心轮之间为旋转活动连接； 活塞连杆的上端与活塞旋转活动连 接； 活塞连杆下端的圆周运动转化为活塞连杆上端在缸套与缸盖所形成 的封闭缸体内的往复直线运动。
2. 根据权利要求 1所述的便携式气泵， 其特征在于， 所述活塞连杆 的下端、 与偏心轮的连接处设有第一轴承， 活塞连杆通过所述第一轴承 与偏心轮旋转活动连接。
3. 根据权利要求 1或 2所述的便携式气泵， 其特征在于， 所述活塞 连杆的上端、 与活塞连接处设有第二轴承， 活塞连杆通过所述第二轴承 并使用轴销与活塞旋转活动连接。
4. 根据权利要求 3所述的便携式气泵， 其特征在于， 所述活塞靠近 裙边位置处沿活塞周向设置第二密封件， 第二密封件由密封圏构成。
5. 根据权利要求 1所述的便携式气泵， 其特征在于， 所述泵体总成 包括散热片， 散热片为沿缸套周向设置、 并沿活塞运动方向延伸的散热 翅片。
6. 根据权利要求 1所述的便携式气泵， 其特征在于， 所述缸盖上设 置散热翅片， 散热翅片沿缸盖周向设置并沿活塞运动方向延伸。
PCT/CN2011/073500 2010-10-19 2011-04-29 便携式气泵 WO2012051846A1 (zh)

Applications Claiming Priority (2)

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CN201020577255.1 2010-10-19
CN 201020577255 CN201818461U (zh) 2010-10-19 2010-10-19 便携式气泵

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WO2012051846A1 true WO2012051846A1 (zh) 2012-04-26

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201818461U (zh) * 2010-10-19 2011-05-04 宁波沃伟力学工业技术有限公司 便携式气泵
CN102619725A (zh) * 2012-03-22 2012-08-01 浙江卡韦德新能源科技有限公司 一种电动汽车真空泵

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2124325U (zh) * 1992-05-07 1992-12-09 刘惠东 带贮水缸的手压式扬程泵
WO2002057630A1 (en) * 2001-01-17 2002-07-25 Active Tools A/S Air compressor unit
JP2003097446A (ja) * 2001-09-21 2003-04-03 Anest Iwata Corp 往復型圧縮機
CN2700146Y (zh) * 2004-03-18 2005-05-18 江苏黄海汽配股份有限公司 轮胎中央充放气泵总成
CN101303006A (zh) * 2008-06-08 2008-11-12 岑建力 便携式交流气泵
CN201818461U (zh) * 2010-10-19 2011-05-04 宁波沃伟力学工业技术有限公司 便携式气泵

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2124325U (zh) * 1992-05-07 1992-12-09 刘惠东 带贮水缸的手压式扬程泵
WO2002057630A1 (en) * 2001-01-17 2002-07-25 Active Tools A/S Air compressor unit
JP2003097446A (ja) * 2001-09-21 2003-04-03 Anest Iwata Corp 往復型圧縮機
CN2700146Y (zh) * 2004-03-18 2005-05-18 江苏黄海汽配股份有限公司 轮胎中央充放气泵总成
CN101303006A (zh) * 2008-06-08 2008-11-12 岑建力 便携式交流气泵
CN201818461U (zh) * 2010-10-19 2011-05-04 宁波沃伟力学工业技术有限公司 便携式气泵

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