WO2023016152A1 - 一种用于连接喷枪和流体供应杯的连接机构 - Google Patents

一种用于连接喷枪和流体供应杯的连接机构 Download PDF

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Publication number
WO2023016152A1
WO2023016152A1 PCT/CN2022/104377 CN2022104377W WO2023016152A1 WO 2023016152 A1 WO2023016152 A1 WO 2023016152A1 CN 2022104377 W CN2022104377 W CN 2022104377W WO 2023016152 A1 WO2023016152 A1 WO 2023016152A1
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Prior art keywords
spray gun
locking
fluid supply
supply cup
sealing
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PCT/CN2022/104377
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English (en)
French (fr)
Inventor
肖云
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青岛汉柏塑料科技有限公司
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Publication of WO2023016152A1 publication Critical patent/WO2023016152A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device

Definitions

  • the utility model relates to the field of fluid spraying equipment, in particular to a connection mechanism for connecting a spray gun and a fluid supply cup.
  • the paint in the spray cup is sprayed out through the nozzle.
  • the head of the spray gun is made of plastic. Meet sealing requirements.
  • the operator needs to perform swing operations in various angles.
  • the protruding spray gun head at the joint with the spray cup is easy to break, resulting in economic losses, especially This is more likely to happen in a small space.
  • the head of the existing plastic spray gun can only be equipped with a cup cover of a certain shape, which cannot meet the needs of different shapes of cup covers, and the replacement of different shapes of cup covers will increase the cost of use. Therefore, a locking connection mechanism that can improve the service life of the spray gun and can be flexibly applied to liquid storage devices with different shapes of cup lids is of great significance.
  • the utility model proposes a connection mechanism for connecting a spray gun and a fluid supply cup, aiming at solving the problems existing in the prior art.
  • connection mechanism for connecting a spray gun and a fluid supply cup including a sealing connection and a fixing nut forming a fluid communication channel between the fluid supply cup and the spray gun;
  • the sealing connector includes a channel for fluid communication, a locking sealing part for connecting and locking the liquid outlet of the fluid supply cup, an insertion tube body for inserting the nozzle part of the spray gun and a first connecting part used in cooperation with the fixing nut ;
  • the fixing nut is used to lock the sealing connection piece to the spray gun when the pipe body is inserted into the nozzle part of the spray gun.
  • the fixing nut includes a second connection part for locking the sealing connection part and a locking part for locking the spray gun.
  • the locking sealing part includes a sealing groove for inserting the liquid outlet of the fluid supply cup and a locking part for locking the fluid supply cup.
  • the locking part of the fixing nut includes a locking arm fixedly connected with the second connecting part and a lip on the locking arm protruding toward the axial center of the fixing nut.
  • the locking arm is formed by extending the fixing nut on the end surface of the second connecting part away from the sealing connecting part in a direction away from the sealing connecting part, and the protruding lip is the end of the locking arm
  • a protrusion with a certain thickness is formed by extending the portion toward the axial direction of the fixing nut.
  • the number of the locking arms is 2 or 4.
  • the utility model has the advantages that: one end of the metal locking connection mechanism is connected to the plastic nozzle part of the spray gun, and the other end is connected to the fluid supply cup of plastic material, which can greatly improve the service life of the spray gun; the metal locking connection mechanism connects the spray gun tube in the nozzle assembly of the plastic spray gun The raised part of the spray gun is wrapped inside, which can protect the plastic nozzle part of the spray gun as much as possible in the case of misoperation; the metal locking connection mechanism can be flexibly selected according to the shape of the head of the spray cup cover, and the same spray gun can be used by changing different shapes.
  • the sealed connector realizes the connection between different types of fluid supply cups and spray guns, thereby reducing the problem of increased use costs caused by users needing to replace different spray guns when changing different fluid supply cups.
  • Fig. 1 is a schematic diagram of the connection structure between the connection mechanism and the spray gun and the fluid supply cup in Embodiment 1 of this patent;
  • Fig. 2 is a structural schematic diagram of the connecting mechanism in Embodiment 1 of the present patent
  • Fig. 3 is a schematic diagram of the structure of the sealing connector in Example 1 of this patent.
  • Fig. 4 is the structural representation of the nozzle portion of the spray gun in the prior art (patent CN1902003A, US2005/0145718A1);
  • Fig. 5 is a structural schematic diagram of the connection part and the inlet port in the nozzle part in the prior art (patent CN1902003A, US2005/0145718A1);
  • Fig. 6 is a structural schematic diagram of the connection part in the nozzle part in the prior art (patent CN1902003A, US2005/0145718A1);
  • Fig. 7 is a structural schematic diagram of the connection part in the nozzle part in the prior art (patent CN1902003A, US2005/0145718A1) (the connection part is a single layer);
  • Fig. 8 is a schematic structural view of the connecting mechanism in Embodiment 3 of this patent.
  • Fig. 9 is a schematic structural view of a fixing nut in Embodiment 3 of this patent.
  • Fig. 10 is a schematic structural view of the connecting part of the connecting mechanism and the spray gun in the locked state in Embodiment 3 of this patent;
  • Fig. 11 is a schematic structural diagram of the sealing connector of the connecting mechanism in Embodiment 2 of this patent;
  • Fig. 12 is a structural schematic diagram of a three-dimensional view of the sealing connector of the connecting mechanism in Embodiment 2 of the present patent.
  • a connection mechanism for connecting a spray gun 10 and a fluid supply cup 90 includes a sealing connector 1 and a fixing nut 2 forming a fluid communication channel between the fluid supply cup and the spray gun;
  • the sealing connector 1 includes a channel 1-4 for fluid communication, a locking sealing part 1-3 for connecting and locking the liquid outlet of the fluid supply cup, and an insertion tube body 1-3 for inserting into the inlet end of the nozzle part of the spray gun. 1 and the first connecting part 1-2 used in conjunction with the fixing nut 2;
  • the sealing connector 1 is used as an adapter part, and its main function is to form a stable and sealed fluid communication channel between the fluid supply cup 90 and the spray gun 10.
  • the locking sealing parts 1-3 of the sealing connector 1 It is used to connect to the liquid outlet 91 of the fluid supply cup 90. After the liquid outlet 91 of the fluid supply cup 90 is inserted into the locking sealing portion 1-3, a sealed connection will be formed.
  • fluid supply cup 90 has multiple, such as the fluid supply cup shown in the patent US20030006310A1, CN208711972U, TWD155488D01S, CN300700565D, CN306509120S, CN 210252849 U, fluid supply cup 90 all has a spout 91 (or be called as that for liquid to flow out) is the liquid outlet) and a locking structure 92 for locking connection with a spray gun or an adapter.
  • the liquid outlet 91 of the fluid supply cup is generally designed on the bowl cover of the fluid supply cup 90 (such as the parts of the number 40 in the accompanying drawings of the patent US20030006310A, the parts of the number 14 in the drawings of the patent CN208711972U, the parts of the drawings of the patent CN 210252849 U No. 2 parts); also have the liquid outlet 91 of the fluid supply cup 90 designed on the fluid supply cup 90, such as the fluid supply cup of the patent CN1221757C (referred to as the material supply device 5 in this patent).
  • the liquid outlet 91 of the fluid supply cup 90 is inserted into the sealing groove 1-5 of the locking sealing part 1-3; after the liquid outlet of the fluid supply cup is inserted in the sealing groove 1-5, in order to make the sealing connection 1 and the fluid supply cup 90 are stable, so that they will not be disengaged at will during use.
  • the locking sealing part 1-3 needs to lock the two quickly.
  • the locking sealing part 1-3 is provided with a fast locking fluid
  • the locking part 1-6 of the supply cup 90, the structure of the locking part 1-6 is set according to the locking structure 92 at the liquid outlet 91 of the fluid supply cup 90, and the structure of the locking structure 92 of the fluid supply cup 90 also has many kinds, such as The parts with number 69 in the accompanying drawings of patent CN100415384C: hook elements, and the parts with numbers 14 in the drawings of patent CN1221757C: spiral wedge elements.
  • the dotted lines at the locking parts 1-6 in FIG. 3 indicate that the locking parts 1-6 may have various structures, which are specifically set according to the locking structure 92 at the liquid outlet 91 of the fluid supply cup 90 .
  • the locking part 1-6 should be adapted to the component hook element marked 69 in the accompanying drawings, and the locking structure of the locking part 1-6 can be the same as that in the accompanying drawing 2 of the specification
  • connection method of the sealing connection part 1 and the fluid supply cup 90 has been described in detail above, and the method of connecting the sealing connection part 1 and the spray gun 10 to realize fluid communication will be described in detail below.
  • the insertion tube body 1 - 1 of the sealing connector 1 is used to be inserted into the inlet end 17 of the spray gun 10 , and a sealed connection is formed between the outer wall of the insertion tube body 1 - 1 and the inner wall of the inlet end 17 after insertion.
  • the sealing connection part 1 With the connection part 80 of the spray gun 10 or the main body assembly 12 of the spray gun 10 or the nozzle part 14 of the main body assembly.
  • an additional adapter element is required: the fixing nut 2; the fixing nut 2 can be locked with the sealing connection part 1 at one end, and the connecting part 80 of the main body assembly 12 of the spray gun 10 or the nozzle part 14 of the main body assembly at the other end. locking.
  • the fixing nut 2 comprises a second connecting portion 2-1 for locking the sealing connection 1 and a locking portion 2-2 for locking the spray gun.
  • the locking method of the fixing nut 2 and the sealing connection part 1 is: the first connection part 1-2 is threadedly connected with the second connection part 2-1.
  • the dotted line at the locking portion 2 - 2 in FIG. 2 indicates that the locking portion 2 - 2 may have various structures, which are specifically set according to the structure of the connecting portion 80 of the spray gun 10 .
  • the material of the sealing connecting piece 1 and the fixing nut 2 is metal, specifically stainless steel or aluminum. Both are separately processed and integrally formed.
  • the outer wall of the sealing connector 1 is provided with a first groove portion 1-7, and the outer wall of the fixing nut 2 is provided with a second groove portion 2-5, which is convenient for users to install and disassemble.
  • the locking part 1-6 of the sealing connector 1 can directly use the locking structure of the number 6 in Fig. 12 and Fig. 13 in CN210252849U.
  • the locking part 1-6 of the sealing connector 1 can also use the structure shown in Figure 11 and Figure 12 of this patent; specifically, the locking part 1-6 is arranged on the The inlet end of the sealing groove 1-5; including an annular wall 1-63 and a pair of lateral locking protrusions 1-61 formed on the inner wall of the annular wall 1-63, set at the locking terminal position of the locking protrusion 1-61 There is a stop arm 1-62.
  • connection mechanism in this embodiment are the same as those in Embodiment 1 or Embodiment 3, and will not be repeated here.
  • the spray gun in Fig. 1 of this patent is the spray gun 10 shown in Fig. 1 in the patent CN1902003A
  • Fig. 2 is Fig. 9 in the patent CN1902003A
  • 4-7 highlight the location and specific structure of the connection part 80 .
  • the connecting part 80 in Fig. 4-Fig. 6 is a double-layer structure, in the case of keeping the concave groove 80-1 of the connecting part 80, the structure of the locking protrusion 80-2 and the limiting protrusion 80-3 unchanged
  • the connection part 80 may be a single-layer structure, as shown in FIG. 7 .
  • the spray gun that this embodiment is aimed at is as the spray gun 10 shown in the patent CN1902003A, US2005/0145718A1, the nozzle part 14 in the main body assembly 12 of its spray gun has the liquid channel 16 that extends from the inlet end 17 to the outlet end 18, at the inlet end
  • a connecting part 80 at 17 for detachably engaging and connecting the fluid supply cup is shown in Figure 3 and Figure 4, including a recessed groove 80-1, a locking protrusion 80-2 and a limiting protrusion 80-3.
  • the nozzle part 14 is made of a polymer material (for example: polypropylene, polyethylene or glass fiber-filled nylon), and as the number of uses increases, the size will cause scratches and diameter increases due to the soft properties of the polymer material. Affect the sealing requirements; there is also the need to swing in various angles when using in the hands of the operator. Because it is made of polymer materials, the operator makes mistakes when using it, and it will combine with the fluid supply cup when encountering sharp and hard objects. Partially broken, causing loss, especially in a narrow space, such mistakes are more likely to occur; in addition, because of the special structure of this connecting part 80, it is difficult to adapt to other fluid supply cups, thereby limiting the use of users.
  • a polymer material for example: polypropylene, polyethylene or glass fiber-filled nylon
  • the locking part 2-2 of the fixed nut 2 includes a locking arm 2-3 connected to the second connecting part 2-1 and a locking arm located on the locking arm. 2-3 protruding lip 2-4 at the end.
  • the number of locking arms 2-3 of the locking part 2-2 is 2 or 4.
  • the two locking arms 2-3 are at the bisecting point of the circumference of the fixed nut 2, that is: two locking arms 2-3 (including the convex lip 2 on the locking arm 2-3 -4) They are symmetrical to a plane passing through the axis A of the connecting mechanism;
  • the protruding lip 2-4 of the fixing nut 2 passes through the concave groove 80-1 of the connecting part 80, and then the fixing nut 2 and the connecting part 80 are relatively rotated, and through the rotation, the locking arm 2-3 is The inner surface 2-6 is locked with the locking protrusion 80-2, and the limiting protrusion 80-3 can prevent the fixed nut 2 from continuing to rotate.
  • Two or four symmetrical locking arms 2-3 can firmly lock the spray gun at the connection part 80, and the locked state is shown in FIG. 10 .
  • the locking arm 2-3 is used to cooperate with the locking protrusion 80-2 when the fixing nut 2 and the connecting part 80 are locked, so as to prevent the fixing nut 2 and the connecting part 80 from rotating at will; the protruding lip 2-4 is used for fixing When the nut 2 is locked with the connecting portion 80 , it cooperates with the thickness of the locking protrusion 80 - 2 to prevent the fixing nut 2 from being separated from the connecting portion 80 in the axial direction A.
  • the locking arm 2-3 is directed away from the sealing connector 1 on the end surface of the second connecting part 2-1 away from the sealing connector 1 by the fixing nut 2
  • the protruding lip 2 - 4 is a projection with a certain thickness formed by extending the end of the locking arm 2 - 3 toward the axis A of the fixing nut 2 .
  • connection mechanism used to connect the spray gun 10 and the fluid supply cup 90 refer to Embodiment 1 and Embodiment 2.

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Abstract

一种用于连接喷枪和流体供应杯的连接机构，包括在流体供应杯（90）和喷枪（10）之间形成流体流通通道的密封连接件（1）和固定螺母（2）；密封连接件（1）包括供流体流通的通道（1-4）、用于连接并锁定流体供应杯（90）的出液口的锁定密封部（1-3）、用于插入喷枪喷嘴部分的插入管体（1-1）和与固定螺母（2）配合使用的第一连接部（1-2）；固定螺母（2）用于在插入管体（1-1）插入喷枪喷嘴部分的状态下将密封连接件（1）锁定到喷枪（10）上。本申请的连接机构能够大大提高喷枪的使用寿命；在使用者操作失误的情况下尽量保护喷枪的塑料喷嘴部分。

Description

一种用于连接喷枪和流体供应杯的连接机构 技术领域
本实用新型涉及流体喷涂作业设备领域，特别涉及一种用于连接喷枪和流体供应杯的连接机构。
背景技术
喷枪使用时，将喷杯内的漆料通过喷嘴向外喷出，目前喷枪头部为塑料结构，随着使用次数的增多，喷枪头部会产生摩擦划痕及外扩等塑性变形，导致无法满足密封要求。同时，喷枪在使用时，操作人员需要进行各个角度方向的摆动作业，当失误碰到尖锐及太硬的物体时，与喷杯结合处凸起的喷枪头部容易折断，从而造成经济损失，特别是在狭小的空间更容易有这种情况出现。此外，现有塑料喷枪头部只能配套某种形状的杯盖，不能满足不同形状杯盖的需求，更换不同形状杯盖会增加使用成本。因此一种能够提高喷枪使用寿命，同时能够灵活适用于不同形状杯盖的液体存储装置的锁定连接机构是有重要意义的。
实用新型内容
鉴于此，本实用新型提出了一种用于连接喷枪和流体供应杯的连接机构，旨在解决现有技术中存在的问题。
具体的，一种用于连接喷枪和流体供应杯的连接机构，包括在流体供应杯和喷枪之间形成流体流通通道的密封连接件和固定螺母；
所述密封连接件包括供流体流通的通道、用于连接、锁定流体供应杯的出液口的锁定密封部、用于插入喷枪喷嘴部分的插入管体和与固定螺母配合使用的第一连接部；
所述固定螺母用于在插入管体插入喷枪喷嘴部分的状态下将密封连接件锁定到喷枪上。
在上述方案的基础上，所述固定螺母包括用于锁定所述密封连接件的第二连接部和用于锁定喷枪的锁紧部。
在上述方案的基础上，所述第一连接部与所述第二连接部为螺纹连接。
在上述方案的基础上，所述锁定密封部包括用于流体供应杯的出液口插入的密封槽和用于锁定流体供应杯的锁定部。
在上述方案的基础上，所述固定螺母的锁紧部包括与第二连接部固定连接的锁紧臂和位于锁紧臂上的向固定螺母的轴心方向凸起的凸唇。
在上述方案的基础上，所述锁紧臂由固定螺母在第二连接部的远离密封连接件的端面上向远离密封连接件的方向延伸后形成的，所述凸唇为锁紧臂的端部向固定螺母的轴心方向延伸形成的具有一定厚度的凸起。
在上述方案的基础上，所述锁紧臂的数量为2个或者4个。
本实用新型的优点在于：金属锁定连接机构一端连接喷枪的塑料喷嘴部分，另一端连接塑料材质的流体供应杯，能够大大提高喷枪的使用寿命；金属锁定连接机构将塑料喷枪喷嘴组件中的喷枪管的凸起部分包裹在内，能够在操作失误的情况下尽量保护喷枪的塑料喷嘴部分；金属锁定连接机构可以根据喷杯杯盖的头部形状灵活选择，可以使用同一个喷枪，通过更换不同形状的密封连接件，实现不同类型的流体供应杯与喷枪的连接，从而减少用户在更换不同流体供应杯时，需要更换不同的喷枪而造成的使用成本增加的问题。
附图说明
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本实用新型的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1为本专利实施例1中连接机构与喷枪和流体供应杯的连接结构示意图；
图2为本专利实施例1中连接机构的结构示意图；
图3为本专利实施例1中密封连接件的结构示意图；
图4为现有技术(专利CN1902003A、US2005/0145718A1)中的喷枪的喷嘴部分的结构示意图；
图5为现有技术(专利CN1902003A、US2005/0145718A1)中喷嘴部分中连接部分和入口端的结构示意图；
图6为现有技术(专利CN1902003A、US2005/0145718A1)中喷嘴部分中连接部分的结构示意图；
图7为现有技术(专利CN1902003A、US2005/0145718A1)中喷嘴部分中连接部分的结构示意图(连接部分为单层)；
图8为本专利的实施例3中连接机构的结构示意图；
图9为本专利的实施例3中固定螺母的结构示意图；
图10为本专利的实施例3中连接机构与喷枪的连接部分在锁定状态下的结构示意图；
图11为本专利的实施例2中连接机构的密封连接件的结构示意图；
图12为本专利的实施例2中连接机构的密封连接件的立体视角结构示意图。
具体实施方式
下面将参照附图更详细地描述本实用新型的示例性实施例。虽然附图中显示了本实用新型的示例性实施例，然而应当理解，可以以各种形式实现本实用新型而不应被这里阐述的实施例限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本实用新型的范围完整的传达给本领域的技术人员。需要说明的是，在不冲突的情况下，本实用新型中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本实用新型。
实施例1
如图1-图3所示，一种用于连接喷枪10和流体供应杯90的连接机构，包括在流体供应杯和喷枪之间形成流体流通通道的密封连接件1和固定螺母2；
所述密封连接件1包括供流体流通的通道1-4、用于连接、锁定流体供应杯的出液口的锁定密封部1-3、用于插入喷枪喷嘴部分的入口端的插入管体1-1和与固定螺母2配合使用的第一连接部1-2；
如图2所示，密封连接件1作为一个适配部件，主要的功能是在流体供应杯90和喷枪10之间形成稳定、密封的流体流通通道，密封连接件1的锁定密封部1-3用于连接流体供应杯90的出液口91，流体供应杯90的出液口91插入锁定密封部1-3后会形成密封连接的状态。
流体供应杯90的形式有多种，比如专利US20030006310A1、CN208711972U、TWD155488D01S、CN300700565D、CN306509120S、CN 210252849 U中所示出的流体供应杯，流体供应杯90均具有一个供液体流出的喷口91(或称为出液口)和用于与喷枪或适配器锁定连接的锁定结构92。
流体供应杯的出液口91一般设计在流体供应杯90的杯盖(如专利US20030006310A的附图中标号40的部件、专利CN208711972U的附图中标号14的部件、专利CN 210252849 U的附图中标号2的部件)上；还有流体供应杯90的出液口91设计在流体供应杯90上，如专利CN1221757C的流体供应杯(在该专利中称作材料供应装置5)。
具体的，流体供应杯90的出液口91是插入到锁定密封部1-3的密封槽1-5中；流体供应杯的出液口插入密封槽1-5中后，为了使密封连接件1与流体供应杯90之间稳定，不致于在使用过程中两者随意脱离，锁定密封部1-3需要将两者快速的锁定，具体的，锁定密封部1-3设置有用于快速锁定流体供应杯90的锁定部1-6，锁定部1-6的结构根据流体供应杯90的出液口91处的锁定结构92设定，流体供应杯90的锁定结构92的结构也有很多种，如专利CN100415384C的附图中标号69的部件：钩元件、专利CN1221757C的附图中标号14的部件：螺旋楔元件。图3中锁定部1-6处的虚线指的是锁定部1-6的结构可以有多种，具体根据流体供应杯90的出液口91处的锁定结构92设定。
比如为连接专利CN100415384C中的流体供应杯，锁定部1-6要实现与其附图中标号69的部件钩元件相适配，锁定部1-6锁定的结构方式可以是其说明书附图2中的第二接头54的第二端部58的结构；还比如为连接专利CN1221757C的流体供应杯，锁定部1-6要实现与螺旋楔元件14相适配，锁定部1-6锁定的结构方式可以是其说明书附图1中的突起16的内侧上相应的对应元件15的结构。
以上详细的说明了密封连接件1与流体供应杯90的连接方式，以下再详细说明密封连接件1与喷枪10连接实现流体流通的方式。
密封连接件1的插入管体1-1用于插入喷枪10的入口端17中，插入后插入管体1-1的外壁与入口端17的内壁之间形成密封连接。
密封连接件1的插入管体1-1插入喷枪10的入口端17后，两者之间仅能实现流体流通，此时，为了使密封连接件1与喷枪之间稳定，不致于在使用过程中两者随意脱离，需要将密封连接件1与喷枪10或者喷枪10的主体组件12或者主体组件的喷嘴部分14的连接部分80进行锁定。锁定时，需要一个额外的适配元件：固定螺母2；固定螺母2能够实现一端与密封连接件1进行锁定，另一端与喷枪10的主体组件12或者主体组件的喷嘴部分14的连接部分80进行锁定。 因此，固定螺母2包括用于锁定所述密封连接件1的第二连接部2-1和用于锁定喷枪的锁紧部2-2。作为一种具体的连接方式，固定螺母2与密封连接件1进行锁定的方式是：第一连接部1-2与所述第二连接部2-1为螺纹连接。图2中锁紧部2-2处的虚线指的是锁紧部2-2的结构可以有多种，具体根据喷枪10的连接部分80的结构设定。
密封连接件1和固定螺母2的材质为金属，具体为不锈钢或者铝。两者均是单独加工一体成型。
密封连接件1的外壁上设置有第一凹槽部1-7，固定螺母2的外壁上设置有第二凹槽部2-5，方便使用者安装和拆卸。
实施例2
一种用于连接喷枪和流体供应杯的连接机构，用于使用专利CN 210252849 U中示出的流体供应杯，专利CN 210252849 U中的流体供应杯中的杯盖上有多种锁定凸起，如其附图中标号3的锁定凸起，除此之外，还有其附图1a、图1c、图3b、图5、图7、图8、图9、图10a、图10b中示出的其他结构的锁定凸起，当连接专利CN 210252849U中的流体供应杯时，密封连接件1的锁定部1-6可以直接使用CN210252849U中图12和图13中标号6的锁定结构。
密封连接件1的锁定部1-6除了使用上面的两种结构外，还可以使用本专利图11和图12中所示出的结构；具体的，所述锁定部1-6设置于所述密封槽1-5的进口端；包括环形壁1-63和形成与环形壁1-63的内壁上的成对的横向锁定凸起1-61，在锁定凸起1-61的锁定终点位置设置有止挡臂1-62。
本实施例中的连接机构的其他结构与实施例1或实施例3相同，在此不再赘述。
实施例3
本专利图1中的喷枪为专利CN1902003A中的图1所示的喷枪10，图2为专利CN1902003A中的图9(原图中的标号只保留了本专利涉及到的部件标号，其余的均做了删除)。图4-7重点示出了连接部分80的位置及具体结构。其中图4-图6中连接部分80为双层的结构，在保持连接部分80的凹陷槽80-1，锁定凸起80-2和限位凸起80-3的结构不变的情况下，连接部分80可以为单层结构，结构如图7所示。
本实施例所针对的喷枪如专利CN1902003A、US2005/0145718A1中所示的喷枪10，其喷枪的主体组件12中的喷嘴部分14具有从入口端17延伸到出口端18的液体通道16，在入口端17处有用于以可拆卸地接合连接流体供应杯的连接部分80；连接部分80的结构如图3和图4所示，包括凹陷槽80-1，锁定凸起80-2和限位凸起80-3。喷嘴部分14为聚合物材质(例如：聚丙烯、聚乙烯或玻璃纤维填充的尼龙)，随着使用次数的增多尺寸会因聚合物材料软的特性会产生摩擦的划痕及直径的加大，影响密封要求；还有在操作者手中使用时需要各个角度方向的摆动，由于是聚合物材质制品，操作者在使用时出现失误，碰到尖锐及硬质的物体会把与流体供应杯结合的部分折断，造成损失，尤其在狭小的空间更容易发生这种失误；除此之外，这种连接部分80因为结构特殊，很难适配其他的流体供应杯，进而造成用户使用受限。
为了适配该型喷枪，如图8-图10所示，所述固定螺母2的锁紧部2-2包括与第二连接部2-1连接的锁紧臂2-3和位于锁紧臂2-3端部的凸唇2-4。
所述锁紧部2-2的锁紧臂2-3的数量为2个或者4个。数量为2个时，两个锁紧臂2-3在固定螺母2的圆周的二等分点位置，即：2个锁紧臂2-3(包含锁紧臂2-3上的凸唇2-4)之间与经过连接机构的轴线A的一个平面对称；数量为4个时，4个锁紧臂2-3在固定螺母2的圆周的四等分点位置。
在锁定喷枪10时，固定螺母2的凸唇2-4穿过连接部分80的凹陷槽80-1，之后使固定螺母2与连接部分80相对旋转，通过旋转，使锁紧臂2-3的内面2-6与锁定凸起80-2进行锁定，限位凸起80-3可以阻止固定螺母2的继续旋转。对称的2个或4个锁紧臂2-3可以牢牢的将喷枪在连接部分80处锁住，锁住的状态如图10所示。
锁紧臂2-3用于在固定螺母2与连接部分80锁紧的情况下与锁定凸起80-2配合，防止固定螺母2与连接部分80随意转动；凸唇2-4用于在固定螺母2与连接部分80锁紧的情况下与锁定凸起80-2的厚度配合，防止固定螺母2与连接部分80在轴向A脱离。
作为一种具体的形式，如图9所示，所述锁紧臂2-3由固定螺母2在第二连接部2-1的远离密封连接件1的端面上向远离密封连接件1的方向延伸后形成的，所述凸唇2-4为锁紧臂2-3的端部向固定螺母2的轴心A的方向延伸形成的具有 一定厚度的凸起。
除了固定螺母2使用本实施例的固定螺母外，用于连接喷枪10和流体供应杯90的连接机构的其他部件参照实施例1和实施例2。
下面参照附图来描述本实用新型的优选实施方式。本领域技术人员应当理解的是，这些实施方式仅仅用于解释本实用新型的技术原理，并非旨在限制本实用新型的保护范围。
显然，本领域的技术人员可以对本实用新型进行各种改动和变型而不脱离本实用新型的精神和范围。这样，倘若本实用新型的这些修改和变型属于本实用新型权利要求及其等同技术的范围之内，则本实用新型也意图包含这些改动和变型在内。

Claims (10)

  1. 一种用于连接喷枪和流体供应杯的连接机构，其特征在于，包括在流体供应杯和喷枪之间形成流体流通通道的密封连接件(1)和固定螺母(2)；
    所述密封连接件(1)包括供流体流通的通道(1-4)、用于连接并锁定流体供应杯的出液口的锁定密封部(1-3)、用于插入喷枪喷嘴部分的插入管体(1-1)和与固定螺母(2)配合使用的第一连接部(1-2)；
    所述固定螺母(2)用于在插入管体(1-1)插入喷枪喷嘴部分的状态下将密封连接件(1)锁定到喷枪上。
  2. 根据权利要求1所述的用于连接喷枪和流体供应杯的连接机构，其特征在于，所述固定螺母(2)包括用于锁定所述密封连接件(1)的第二连接部(2-1)和用于锁定喷枪的锁紧部(2-2)。
  3. 根据权利要求2所述的用于连接喷枪和流体供应杯的连接机构，其特征在于，所述第一连接部(1-2)与所述第二连接部(2-1)为螺纹连接。
  4. 根据权利要求1所述的用于连接喷枪和流体供应杯的连接机构，其特征在于，所述锁定密封部(1-3)包括用于流体供应杯的出液口插入的密封槽(1-5)和用于锁定流体供应杯的锁定部(1-6)。
  5. 根据权利要求2所述的用于连接喷枪和流体供应杯的连接机构，其特征在于，所述固定螺母(2)的锁紧部(2-2)包括与第二连接部(2-1)固定连接的锁紧臂(2-3)和位于锁紧臂(2-3)上的向固定螺母(2)的轴心方向凸起的凸唇(2-4)。
  6. 根据权利要求5所述的用于连接喷枪和流体供应杯的连接机构，其特征在于，所述锁紧臂(2-3)由固定螺母(2)在第二连接部(2-1)的远离密封连接件(1)的端面上向远离密封连接件(1)的方向延伸后形成的，所述凸唇(2-4)为锁紧臂(2-3)的端部向固定螺母(2)的轴心方向延伸形成的具有一定厚度的凸起。
  7. 根据权利要求5所述的用于连接喷枪和流体供应杯的连接机构，其特征在于，所述锁紧臂(2-3)的数量为2个或者4个。
  8. 根据权利要求1所述的用于连接喷枪和流体供应杯的连接机构，其特征在于，所述密封连接件(1)的外壁上设置有第一凹槽部(1-7)。
  9. 根据权利要求1所述的用于连接喷枪和流体供应杯的连接机构，其特征 在于，所述固定螺母(2)的外壁上设置有第二凹槽部(2-5)。
  10. 根据权利要求4所述的用于连接喷枪和流体供应杯的连接机构，其特征在于，所述锁定部(1-6)设置于所述密封槽(1-5)的进口端；包括环形壁(1-63)和形成与环形壁(1-63)的内壁上的成对的横向锁定凸起(1-61)。
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