CN211475009U - Distribution valve and injection pump system - Google Patents
Distribution valve and injection pump system Download PDFInfo
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- CN211475009U CN211475009U CN201922120129.7U CN201922120129U CN211475009U CN 211475009 U CN211475009 U CN 211475009U CN 201922120129 U CN201922120129 U CN 201922120129U CN 211475009 U CN211475009 U CN 211475009U
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Abstract
本实用新型涉及液体供给装置技术领域,特别涉及一种分配阀及注射泵系统。所述分配阀包括:阀座组件和滑设在阀座组件内的两个液路控制组件,阀座组件包括阀座本体、进液流道、出液流道和采用弹性材质的密封件,进液流道和出液流道设置在阀座本体上,密封件上设有介质通孔,进液流道的一端和出液流道的一端均设有密封件,且进液流道的一端通过介质通孔用于与注射泵连通,出液流道的一端通过介质通孔用于与注射泵连通;每个液路控制组件均包括采用刚性材质的封堵头,两个封堵头能够分别与两个密封件一一对应抵接,以密封对应的介质通孔。
The utility model relates to the technical field of liquid supply devices, in particular to a distribution valve and a syringe pump system. The distribution valve includes: a valve seat assembly and two liquid circuit control assemblies slidably arranged in the valve seat assembly. The valve seat assembly includes a valve seat body, a liquid inlet flow channel, a liquid outlet flow channel and a seal made of elastic material, The liquid inlet channel and the liquid outlet channel are arranged on the valve seat body, the sealing member is provided with a medium through hole, one end of the liquid inlet channel and one end of the liquid outlet channel are provided with a sealing member, and the liquid inlet channel is provided with a sealing member. One end is used to communicate with the syringe pump through the medium through hole, and one end of the liquid outlet channel is used to communicate with the syringe pump through the medium through hole; They can be respectively abutted with the two sealing members in one-to-one correspondence to seal the corresponding medium through holes.
Description
技术领域technical field
本实用新型涉及液体供给装置技术领域,特别涉及一种分配阀及注射泵系统。The utility model relates to the technical field of liquid supply devices, in particular to a distribution valve and a syringe pump system.
背景技术Background technique
注射泵系统包括注射泵和与注射泵适配的分配阀,分配阀控制注射泵上的进液口和供液口的开闭。当分配阀将进液口打开,并将供液口关闭时,注射泵完成将液体吸入注射器内;当分配阀将进液口关闭,并将供液口打开时,注射泵控制注射器完成自动注射,方便使用。The syringe pump system includes a syringe pump and a distribution valve matched with the syringe pump, and the distribution valve controls the opening and closing of the liquid inlet and the liquid supply port on the syringe pump. When the dispensing valve opens the liquid inlet and closes the liquid supply port, the syringe pump completes inhaling the liquid into the syringe; when the dispensing valve closes the liquid inlet and opens the liquid supply port, the syringe pump controls the syringe to complete automatic injection ,easy to use.
目前通常采用电磁阀或者旋转阀作为分配阀使用,其中,电磁阀是通过接通和断开电磁铁的电源,使阀针抬起和放下,从而打开或关闭注射泵的进液口或者供液口,从而使注射泵完成自动吸液和供液。电磁阀不可少的要素是连接着阀针的可以被电磁吸附的金属,为了保证足够的磁场强度和在切断场强时迅速消磁,就需要选择矫顽力小的材料,如软铁、硅钢等,这些金属材料防腐能力较差。At present, a solenoid valve or a rotary valve is usually used as a distribution valve. The solenoid valve lifts and lowers the valve needle by turning on and off the power of the electromagnet, thereby opening or closing the liquid inlet or liquid supply of the syringe pump. port, so that the syringe pump can automatically suction and supply liquid. The essential element of the solenoid valve is the metal connected to the valve needle that can be electromagnetically adsorbed. In order to ensure sufficient magnetic field strength and rapid demagnetization when the field strength is cut off, it is necessary to select materials with low coercivity, such as soft iron, silicon steel, etc. , these metal materials have poor corrosion resistance.
旋转阀相较于电磁阀具有一定的防腐能力,但是旋转阀是通过电机带动设有微孔的阀芯在阀体当中旋转,以接通阀体上的进口或出口,从而打开注射泵的进液口或者供液口,从而使注射泵完成自动吸液和供液。这就要求阀芯和阀体之间是过盈配合,以保证阀在打开一个通道时另一个通道的密封,这就需要旋转阀的阀芯和阀体的材质均采用较硬的金属材质,当注射泵系统注射的介质为颗粒性体系或者固液不溶体系时,颗粒极易滞留在阀芯和阀体之间时,这就会影响阀芯和阀体之间的密封性,甚至使密封失效,导致注射泵系统无法正常完成工作,因此,相关技术中的分配阀不适用于分配颗粒性体系或者固液不溶体系的介质,适用范围小。Compared with the solenoid valve, the rotary valve has a certain anti-corrosion ability, but the rotary valve drives the valve core with micropores to rotate in the valve body through the motor to connect the inlet or outlet on the valve body, thereby opening the inlet of the syringe pump. Liquid port or liquid supply port, so that the syringe pump can complete automatic liquid suction and liquid supply. This requires an interference fit between the valve core and the valve body to ensure the sealing of the other channel when the valve opens one channel, which requires the valve core and valve body of the rotary valve to be made of hard metal materials. When the medium injected by the syringe pump system is a granular system or a solid-liquid insoluble system, the particles are easily trapped between the valve core and the valve body, which will affect the sealing between the valve core and the valve body, and even make the sealing The failure causes the syringe pump system to fail to work normally. Therefore, the distribution valve in the related art is not suitable for distributing the medium of the granular system or the solid-liquid insoluble system, and the scope of application is small.
实用新型内容Utility model content
本实用新型的目的在于提供一种分配阀及注射泵系统,以解决现有技术中的分配阀不适用于分配颗粒性体系或者固液不溶体系的介质,适用范围小的技术问题。The purpose of the present utility model is to provide a distribution valve and a syringe pump system to solve the technical problem that the distribution valve in the prior art is not suitable for distributing the medium of granular system or solid-liquid insoluble system, and the scope of application is small.
本实用新型提供一种分配阀,包括阀座组件和两个液路控制组件,所述阀座组件包括阀座本体和弹性密封件,所述阀座本体上设有进液流道和出液流道,所述密封件上设有介质通孔,所述进液流道的一端和所述出液流道的一端均设有所述密封件,且所述进液流道的一端通过所述介质通孔用于与注射泵连通,所述出液流道的一端通过所述介质通孔用于与注射泵连通;The utility model provides a distribution valve, which comprises a valve seat assembly and two liquid circuit control assemblies. The valve seat assembly includes a valve seat body and an elastic seal, and the valve seat body is provided with a liquid inlet channel and a liquid outlet. A flow channel, the sealing member is provided with a medium through hole, one end of the liquid inlet channel and one end of the liquid outlet channel are provided with the sealing member, and one end of the liquid inlet channel passes through the The medium through hole is used to communicate with the syringe pump, and one end of the liquid outlet channel is used to communicate with the syringe pump through the medium through hole;
所述液路控制组件滑设在所述阀座本体内,所述液路控制组件包括刚性封堵头,两个所述封堵头能够分别与两个所述密封件一一对应抵接,以密封对应的所述介质通孔。The liquid circuit control assembly is slidably arranged in the valve seat body, and the hydraulic circuit control assembly includes a rigid plugging head, and the two plugging heads can respectively abut with the two sealing members in a one-to-one correspondence. to seal the corresponding medium through holes.
进一步地,阀座本体包括相互连接的阀头和阀体;阀头上设有进液流道和出液流道,阀头还设有用以安装密封件的凹槽;Further, the valve seat body includes a valve head and a valve body that are connected to each other; the valve head is provided with a liquid inlet flow channel and a liquid outlet flow channel, and the valve head is also provided with a groove for installing the seal;
阀体上设有与进液流道连通的第一通道、与出液流道连通的第二通道和与第一通道和第二通道均连通的第三通道,第三通道用于与注射泵连通;The valve body is provided with a first channel that communicates with the liquid inlet channel, a second channel that communicates with the liquid outlet channel, and a third channel that communicates with both the first channel and the second channel. The third channel is used to communicate with the syringe pump. connected;
一个液路控制组件滑设在第一通道内,另一个液路控制组件滑设在第二通道内。One fluid circuit control assembly is slidably arranged in the first channel, and the other fluid circuit control component is slidably arranged in the second channel.
进一步地,密封件包括密封块和压紧块,密封块采用弹性材质,密封块上设有介质通孔;压紧块套设在密封块外,以当封堵头与介质通孔对正后将密封块压紧。Further, the sealing member includes a sealing block and a pressing block, the sealing block is made of elastic material, and a medium through hole is arranged on the sealing block; Press the sealing block tightly.
进一步地,液路控制组件还包括运动柱塞、密封圈和扶正环,封堵头连接在运动柱塞的一端,密封圈和扶正环沿远离封堵头的方向依次设置。Further, the liquid circuit control assembly further includes a moving plunger, a sealing ring and a centralizing ring, the blocking head is connected to one end of the moving plunger, and the sealing ring and the centralizing ring are arranged in sequence along the direction away from the blocking head.
进一步地,液路控制组件还包括设置在运动柱塞上的环形凸起和套设在运动柱塞上的弹力件;Further, the hydraulic circuit control assembly also includes an annular protrusion disposed on the moving plunger and an elastic member sleeved on the moving plunger;
运动柱塞的远离封堵头的一端伸出阀座本体外,弹力件的一端与环形凸起抵接,另一端与阀座本体抵接。One end of the moving plunger away from the blocking head protrudes out of the valve seat body, one end of the elastic piece is in contact with the annular protrusion, and the other end is in contact with the valve seat body.
进一步地,分配阀还包括机架和设置在机架上的驱动组件,驱动组件与两个液路控制组件均传动连接,以带动两个液路控制组件在阀座本体内向靠近或者远离相应的密封件的方向运动;阀座组件固定在机架上。Further, the distribution valve also includes a frame and a drive assembly disposed on the frame, and the drive assembly is drive-connected to both the hydraulic control assemblies to drive the two hydraulic control assemblies to approach or move away from the corresponding control assemblies in the valve seat body. Directional movement of the seal; seat assembly fixed to the frame.
进一步地,驱动组件包括驱动电机、凸轮轴、进液凸轮和出液凸轮,驱动电机的动力输出轴与凸轮轴固定连接,进液凸轮和出液凸轮均套设固定在凸轮轴上;驱动电机固定在机架上,凸轮轴转动连接在机架上;Further, the driving assembly includes a driving motor, a camshaft, a liquid inlet cam and a liquid outlet cam, the power output shaft of the driving motor is fixedly connected with the camshaft, and the liquid inlet cam and the liquid outlet cam are both sleeved and fixed on the camshaft; the driving motor It is fixed on the frame, and the camshaft is rotatably connected to the frame;
两个液路控制组件中的一个为进液控制组件,另一个为出液控制组件;进液凸轮与进液控制组件传动连接,出液凸轮与出液控制组件传动连接。One of the two liquid circuit control assemblies is a liquid inlet control assembly, and the other is a liquid outlet control assembly; the liquid inlet cam is drivingly connected with the liquid inlet control assembly, and the liquid outlet cam is drivingly connected with the liquid outlet control assembly.
进一步地,分配阀还包括传动组件,传动组件包括滑动架和转动连接在滑动架上的滚轮,滑动架沿液路控制组件的滑动方向滑设在机架上;Further, the distribution valve further includes a transmission assembly, the transmission assembly includes a sliding frame and a roller rotatably connected to the sliding frame, and the sliding frame is slidably arranged on the frame along the sliding direction of the hydraulic circuit control assembly;
传动组件为两个,一个为进液传动组件,另一个为出液传动组件;进液传动组件中的滚轮与进液凸轮抵接,出液传动组件的滚轮与出液凸轮抵接。There are two transmission assemblies, one is the liquid inlet transmission assembly and the other is the liquid outlet transmission assembly; the roller in the liquid inlet transmission assembly abuts against the liquid inlet cam, and the roller of the liquid outlet transmission assembly abuts against the liquid outlet cam.
进一步地,分配阀还包括加热保温组件,加热保温组件设置在阀座本体上,以对阀座本体进行加热保温。Further, the distribution valve further includes a heating and thermal insulation component, and the heating and thermal insulation component is arranged on the valve seat body to perform heating and thermal insulation on the valve seat body.
本实用新型提供一种注射泵系统,包括注射泵和上述分配阀,分配阀中的进液流道的一端通过介质通孔用于与注射泵连通,分配阀中的出液流道的一端通过介质通孔用于与注射泵连通。The utility model provides a syringe pump system, comprising a syringe pump and the above-mentioned distribution valve. One end of the liquid inlet channel in the distribution valve is used to communicate with the syringe pump through a medium through hole, and one end of the liquid outlet channel in the distribution valve passes through a medium through hole. The medium through hole is used to communicate with the syringe pump.
本实用新型提供的分配阀能够实现的有益效果是:The beneficial effects that the distribution valve provided by the utility model can achieve are:
液路控制组件为两个,一个为用来控制连通或切断吸液管路(注射泵系统完成吸液过程的管路)的进液组件,另一个为用来控制连通或切断供液管路(注射泵系统完成供液过程的管路)的出液组件。密封件也为两个,一个为设置在进液流道的一端的进液密封件,另一个为设置在出液流道的一端的出液密封件。介质供给装置、进液流道、进液密封件上的介质通孔以及注射泵形成进液系统;注射泵、出液流道、出液密封件上的介质通孔以及待注射体形成供液系统。There are two liquid circuit control components, one is the liquid inlet component used to control the connection or cutoff of the suction pipeline (the pipeline for the syringe pump system to complete the suction process), and the other is used to control the connection or cutoff of the liquid supply pipeline. (The pipeline for the syringe pump system to complete the liquid supply process) The liquid outlet component. There are also two sealing members, one is the liquid inlet sealing member arranged at one end of the liquid inlet flow channel, and the other is the liquid outlet sealing member arranged at one end of the liquid outlet flow channel. The medium supply device, the liquid inlet channel, the medium through hole on the liquid inlet seal and the syringe pump form a liquid inlet system; the syringe pump, the liquid outlet channel, the medium through hole on the liquid outlet seal and the body to be injected form a liquid supply system.
当注射泵需要吸液时,驱动进液组件远离进液密封件,使进液组件的封堵头与进液密封件脱离,从而将进液密封件的介质通孔敞开,进而打开进液流道与注射泵的连通管路;同时,驱动出液组件靠近出液密封件直至出液组件中的封堵头将出液密封件压紧,从而使出液组件的封堵头将出液密封件的介质通孔密封,进而切断出液流道与注射泵连通的管路;注射泵工作,拉动注射器的活塞,将介质由介质供给装置,流过进液流道吸入注射泵的注射器中,完成吸液过程。When the syringe pump needs to suck liquid, drive the liquid inlet assembly away from the liquid inlet seal, so that the plugging head of the liquid inlet assembly is separated from the liquid inlet seal, so as to open the medium through hole of the liquid inlet seal, and then open the liquid inlet flow At the same time, drive the liquid outlet assembly close to the liquid outlet seal until the plugging head in the liquid outlet assembly presses the liquid outlet seal tightly, so that the plugging head of the liquid outlet assembly seals the liquid outlet The medium through hole of the part is sealed, and then the pipeline connecting the liquid outlet channel and the syringe pump is cut off; when the syringe pump works, the piston of the syringe is pulled, and the medium flows from the medium supply device through the liquid inlet channel into the syringe of the syringe pump. Complete the aspiration process.
当注射泵需要供液时,驱动进液组件靠近进液密封件直至进液组件的封堵头压紧进液密封件,从而使进液组件的封堵头将进液密封件的介质通孔密封,进而切断进液流道与注射泵连通的管路;同时,驱动出液组件远离出液密封件,使出液组件中的封堵头与出液密封件脱离,从而将出液密封件的介质通孔敞开,进而打开出液流道与注射泵的连通管路;注射泵工作,推动注射器的活塞,将介质由注射器,流过出液管道注射进待注射体,完成供液过程。When the syringe pump needs to supply liquid, drive the liquid inlet assembly close to the liquid inlet seal until the plugging head of the liquid inlet assembly presses the liquid inlet seal, so that the plugging head of the liquid inlet assembly closes the medium through hole of the liquid inlet seal seal, and then cut off the pipeline connecting the liquid inlet channel and the syringe pump; at the same time, drive the liquid outlet assembly away from the liquid outlet seal, so that the plugging head in the liquid outlet assembly is separated from the liquid outlet seal, so as to separate the liquid outlet seal The through-hole of the medium is opened, and then the communication pipeline between the liquid outlet channel and the syringe pump is opened; the syringe pump works, pushes the piston of the syringe, and injects the medium from the syringe through the liquid outlet pipe into the body to be injected to complete the liquid supply process.
本实用新型提供的分配阀中,封堵头的材料采用刚性材质,密封件的材料采用弹性材质,封堵头的硬度高于密封件的硬度,形成软硬结合的密封方式,当介质为颗粒性体系(如,悬浮液或者浮浊液等)或者固液不容体系等时,在液路控制组件需要将相应的介质通孔密封时,封堵头压紧密封件的过程中,能够将处于封堵头和密封件之间的颗粒性物质压入密封件中,仍然能够保障密封效果,保障相应流道的打开或者关闭,从而保障注射泵系统吸液和供液的正常进行。本实用新型提供的分配阀能够适用于介质为颗粒性体系(如,悬浮液或者浮浊液等)或者固液不容体系等,当然也能够适用于粘连性体系(如丙三醇、植物油、食用油、沉深剂或者乳液等),适用范围较广。In the distribution valve provided by the utility model, the material of the plugging head is made of rigid material, the material of the sealing piece is made of elastic material, the hardness of the plugging head is higher than that of the sealing piece, forming a sealing method combining soft and hard, when the medium is particles When the liquid circuit control component needs to seal the corresponding medium through-hole, the plugging head can press the sealing member in the process of sealing the The particulate matter between the plugging head and the sealing member is pressed into the sealing member, which can still ensure the sealing effect and ensure the opening or closing of the corresponding flow channel, thereby ensuring the normal operation of liquid suction and liquid supply of the syringe pump system. The distribution valve provided by the utility model can be applied to a granular system (such as a suspension or a turbid liquid, etc.) or a solid-liquid incompatible system, and of course it can also be applied to an adhesive system (such as glycerol, vegetable oil, edible oil, denaturing agent or emulsion, etc.), which has a wide range of applications.
另外,本实用新型提供的分配阀中,对进液流道的打开和关闭,以及对出液流道的打开和关闭是相互独立控制的,从而实现对吸液管路的连通和切断以及对供液管路的连通和切断独立控制。这种结构能够使阀座本体、密封件以及液路控制组件的材质选择性较多,如阀座本体可以采用耐腐蚀的材质,强度大的材质,例如:不锈钢、哈氏合金、蒙乃尔合金等金属,或者陶瓷;密封件可以采用聚醚醚酮、氟塑料或聚苯并咪唑等塑料件;封堵头可以采用耐腐蚀的金属、陶瓷或者石材等。分配阀的部件的材质的选择性的多样化,能够实现分配更多种介质,例如强酸、强碱等具有腐蚀性的介质,分配阀的适用范围更广。In addition, in the distribution valve provided by the utility model, the opening and closing of the liquid inlet channel and the opening and closing of the liquid outlet channel are independently controlled, so as to realize the connection and cutting of the suction pipeline and the The connection and disconnection of the liquid supply pipeline are independently controlled. This structure can make the material of the valve seat body, seals and hydraulic control components more selective. For example, the valve seat body can be made of corrosion-resistant materials and high-strength materials, such as stainless steel, Hastelloy, Monel alloy. and other metals, or ceramics; the sealing parts can be plastic parts such as polyetheretherketone, fluoroplastics or polybenzimidazole; the plugging head can be made of corrosion-resistant metals, ceramics or stone materials. The selective diversification of the materials of the parts of the distribution valve can realize the distribution of more media, such as strong acids, strong alkalis and other corrosive media, and the distribution valve has a wider range of applications.
附图说明Description of drawings
构成本实用新型的一部分的附图用来提供对本实用新型的进一步理解,本实用新型的示意性实施例及其说明用于解释本实用新型,并不构成对本实用新型的不当限定。在附图中:The accompanying drawings that constitute a part of the present invention are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:
图1是根据本实用新型实施例的分配阀的结构示意图;1 is a schematic structural diagram of a distribution valve according to an embodiment of the present invention;
图2是图1所示的分配阀的切面图;Figure 2 is a sectional view of the distribution valve shown in Figure 1;
图3是图1所示的分配阀中阀座组件的结构示意图;Fig. 3 is the structural schematic diagram of the valve seat assembly in the distribution valve shown in Fig. 1;
图4是图3所示的阀座组件中阀头的结构示意图;Fig. 4 is the structural schematic diagram of the valve head in the valve seat assembly shown in Fig. 3;
图5是图3所示的阀座组件中阀体的结构示意图;Fig. 5 is the structural schematic diagram of the valve body in the valve seat assembly shown in Fig. 3;
图6是图1所示的分配阀中液路控制组件的结构示意图;Fig. 6 is the structural schematic diagram of the liquid circuit control assembly in the distribution valve shown in Fig. 1;
图7是图1所示的分配阀中驱动组件的结构示意图;Fig. 7 is the structural schematic diagram of the drive assembly in the distribution valve shown in Fig. 1;
图8是图1所示的分配阀中传动组件的结构示意图;Figure 8 is a schematic structural diagram of the transmission assembly in the distribution valve shown in Figure 1;
图9是图1所示的分配阀中机架的结构示意图。FIG. 9 is a schematic structural diagram of the frame in the distribution valve shown in FIG. 1 .
图中:100-阀座组件;110-阀座本体;120-进液流道;130-出液流道;140-密封件;150-第一通道;160-第二通道;170-第三通道;111-阀头;112-阀体;113-固定板;141-密封块;142-压紧块;In the figure: 100 - valve seat assembly; 110 - valve seat body; 120 - liquid inlet channel; 130 - liquid outlet channel; 140 - seal; 150 - first channel; 160 - second channel; 170 - third Channel; 111 - valve head; 112 - valve body; 113 - fixed plate; 141 - sealing block; 142 - pressing block;
200-液路控制组件;210-封堵头;220-运动柱塞;230-密封圈;240-扶正环;250-弹力件;260-环形凸起;200- hydraulic control assembly; 210- blocking head; 220- moving plunger; 230- sealing ring; 240- centralizing ring; 250- elastic piece; 260- annular protrusion;
300-机架;310-上板;320-左侧板;330-右侧板;340-滑动支撑架;300-rack; 310-upper plate; 320-left side plate; 330-right side plate; 340-sliding support frame;
400-驱动组件;410-驱动电机;420-凸轮轴;430-进液凸轮;440-出液凸轮;400 - drive assembly; 410 - drive motor; 420 - camshaft; 430 - liquid inlet cam; 440 - liquid outlet cam;
500-传动组件;510-滑动架;520-滚轮。500 - transmission assembly; 510 - sliding frame; 520 - roller.
具体实施方式Detailed ways
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。It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict. The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
需要说明的是,本申请的提供的分配阀可以应用在一般的液体供给装置中,主要可应用在精细化工、实验室、制药和流动化学等领域,本申请提供的分配阀能够实现精确控制。It should be noted that the distribution valve provided by the present application can be used in general liquid supply devices, mainly in fine chemical, laboratory, pharmaceutical and flow chemistry fields, and the distribution valve provided by the present application can achieve precise control.
需要说明的是,术语“吸液”是指注射泵将介质供给装置中的介质吸入注射泵的注射器;“供液”是指注射泵将注射器中储存的介质输送给待注射体。It should be noted that the term "suction" refers to the syringe pump sucking the medium in the medium supply device into the syringe of the syringe pump; "liquid supply" refers to the syringe pump delivering the medium stored in the syringe to the body to be injected.
如图1至图3所示,本实用新型提供一种分配阀,包括:阀座组件100和滑设在阀座组件100内的两个液路控制组件200,阀座组件100包括阀座本体110、进液流道120、出液流道130和采用弹性材质的密封件140,进液流道120和出液流道130设置在阀座本体110上,密封件140上设有介质通孔,进液流道120的一端和出液流道130的一端均设有密封件140,且进液流道120的一端通过介质通孔用于与注射泵连通,出液流道130的一端通过介质通孔用于与注射泵连通;进液流道120的另一端与介质供给装置连通,出液流道130的另一端与待注射体连接;每个液路控制组件200均包括采用刚性材质的封堵头210,两个封堵头210能够分别与两个密封件140一一对应抵接,以密封对应的介质通孔。As shown in FIG. 1 to FIG. 3 , the present invention provides a distribution valve, comprising: a
本实施例中,液路控制组件200为两个,一个为用来控制连通或切断吸液管路(注射泵系统完成吸液过程的管路)的进液组件,另一个为用来控制连通或切断供液管路(注射泵系统完成供液过程的管路)的出液组件。密封件140也为两个,一个为设置在进液流道120的一端的进液密封件140,另一个为设置在出液流道130的一端的出液密封件140。介质供给装置、进液流道120、进液密封件140上的介质通孔以及注射泵形成进液系统;注射泵、出液流道130、出液密封件140上的介质通孔以及待注射体形成供液系统。In this embodiment, there are two liquid
当注射泵需要吸液时,驱动进液组件远离进液密封件140,使进液组件的封堵头210与进液密封件140脱离,从而将进液密封件140的介质通孔敞开,进而打开进液流道120与注射泵的连通管路;同时,驱动出液组件靠近出液密封件140直至出液组件中的封堵头210将出液密封件140压紧,从而使出液组件的封堵头210将出液密封件140的介质通孔密封,进而切断出液流道130与注射泵连通的管路;注射泵工作,拉动注射器的活塞,将介质由介质供给装置,流过进液流道120吸入注射泵的注射器中,完成吸液过程。When the syringe pump needs to suck liquid, drive the liquid inlet assembly away from the
当注射泵需要供液时,驱动进液组件靠近进液密封件140直至进液组件的封堵头210压紧进液密封件140,从而使进液组件的封堵头210将进液密封件140的介质通孔密封,进而切断进液流道120与注射泵连通的管路;同时,驱动出液组件远离出液密封件140,使出液组件中的封堵头210与出液密封件140脱离,从而将出液密封件140的介质通孔敞开,进而打开出液流道130与注射泵的连通管路;注射泵工作,推动注射器的活塞,将介质由注射器,流过出液管道注射进待注射体,完成供液过程。When the syringe pump needs to supply liquid, drive the liquid inlet assembly close to the
本实施例提供的分配阀中,封堵头210的材料采用刚性材质,密封件140的材料采用弹性材质,封堵头210的硬度高于密封件140的硬度,形成软硬结合的密封方式,当介质为颗粒性体系(如,悬浮液或者浮浊液等)或者固液不容体系等时,在液路控制组件200需要将相应的介质通孔密封时,封堵头210压紧密封件140的过程中,能够将处于封堵头210和密封件140之间的颗粒性物质压入密封件140中,仍然能够保障密封效果,保障相应流道的打开或者关闭,从而保障注射泵系统吸液和供液的正常进行。本实施例提供的分配阀能够适用于介质为颗粒性体系(如,悬浮液或者浮浊液等)或者固液不容体系等,当然也能够适用于粘连性体系(如丙三醇、植物油、食用油、沉深剂或者乳液等),适用范围较广。In the dispensing valve provided in this embodiment, the material of the plugging
另外,本实施例提供的分配阀中,对进液流道120的打开和关闭,以及对出液流道130的打开和关闭是相互独立控制的,从而实现对吸液管路的连通和切断以及对供液管路的连通和切断独立控制。这种结构能够使阀座本体110、密封件140以及液路控制组件200的材质选择性较多,如阀座本体110可以采用耐腐蚀的材质,强度大的材质,例如:不锈钢、哈氏合金、蒙乃尔合金等金属,或者陶瓷;密封件140可以采用聚醚醚酮、氟塑料或聚苯并咪唑等塑料件;封堵头210可以采用耐腐蚀的金属或者石材等。分配阀的部件的材质的选择性的多样化,能够实现分配更多种介质,例如强酸、强碱等具有腐蚀性的介质,分配阀的适用范围更广。In addition, in the distribution valve provided in this embodiment, the opening and closing of the
而且本实施例提供的分配阀能够实现多种材质的选用在,则选择高强度的材质能够实现分配阀在高压状态下使用。Moreover, the distribution valve provided in this embodiment can realize the selection of various materials, and the selection of high-strength materials can realize the use of the distribution valve under high pressure.
其中,阀座本体110可以为一体设置,在阀座本体110上设置用于液路控制组件200滑设的滑槽,在滑槽的槽底设置用于安装密封件140的安装槽,在安装槽的底部设置进液流道120或者出液流道130。Wherein, the
作为一种可选方案,如图3至图5所示,阀座本体110包括相互连接的阀头111和阀体112;阀头111上设有进液流道120和出液流道130,阀头111还设有用以安装密封件140的凹槽;阀体112上设有与进液流道120连通的第一通道150、与出液流道130连通的第二通道160和与第一通道150和第二通道160均连通的第三通道170,第三通道170用于与注射泵连通;一个液路控制组件200滑设在第一通道150内,另一个液路控制组件200滑设在第二通道160内。As an optional solution, as shown in FIGS. 3 to 5 , the
本实施例中,两个液路控制组件200中的一个滑设在第一通道150内,即进液控制组件滑设在第一通道150内,来控制进液流道120的开闭;另一个液路控制组件200滑设在第二通道160内,即出液控制组件滑设在第二通道160内,来控制出液流道130的开闭。阀座本体110分体设置,则方便设置用于安装密封件140的凹槽,而且凹槽的结构以及密封件140的结构不会受到用于滑设液路控制组件200的通道的尺寸的限制,方便安装,也方便对密封件140进行维修或者更换。In this embodiment, one of the two liquid
其中,进液流道120和出液流道130均可以呈直线形,还可以呈L形,还可以呈S形等结构。Wherein, the liquid
第一通道150可以包括相互连通的进通道和进液控制通道,其中,进通道靠近进液流道120设置,进通道的一端与进液流道120的一端连通,另一端与第三通道170连通,进液控制通道位于进通道的另一端,进液控制组件能够在进通道和进液控制通道内滑动。同样,第二通道160可以包括相互连通的出通道和出液控制通道,其中,出通道靠近出液流道130设置,出通道的一端与出液流道130的一端连通,另一端与第三通道170连通,出液控制通道位于出通道的另一端,出液控制组件能够在出通道和出液控制通道内滑动。The
密封件140可以为一个整体,填满凹槽。The
作为一种可选方案,密封件140包括密封块141和压紧块142,密封块141采用弹性材质,密封块141上设有介质通孔;压紧块142套设在密封块141外,以当封堵头210与介质通孔对正后将密封块141压紧。As an optional solution, the sealing
本实施例中,密封件140为分体设置,那么在安装分配阀的过程中,密封块141在凹槽内可以在径向上活动,方便调整使封堵头210与密封件140上的介质通孔对正,以保障较高的同轴度,从而提高密封效果。当封堵头210与密封件140上的介质通孔对正后,驱动压紧块142将密封块141压紧固定,然后可通过螺丝将压紧块与阀头固定(当然也可以采用其他固定方式)。In this embodiment, the sealing
其中,密封块141可以呈直筒型或者呈圆台形等。Wherein, the sealing
压紧块142将密封块141压紧的方式可以为多种,例如:压紧块142设置中心孔,中心孔内设置内螺纹,相应的在密封块141外设置外螺纹,将压紧块142拧紧在密封块141上;或者,压紧块142与密封块141过盈配合,此时,密封较佳的设置成台阶结构,相应的压紧块142也设置成台阶结构,这样使连接更加稳定。The
在上述实施例基础之上,如图4所示,阀座组件100还包括压紧密封圈,压紧块142的远离凹槽底部的一端设置用于固定压紧密封圈的凹槽,压紧密封圈用于对阀体112与阀头111相互配合的端面进行密封,以能够实现真空密封,进一步提高密封效果。On the basis of the above embodiment, as shown in FIG. 4 , the
需要说明的是阀体112上还可根据需要设置清洗口和废液排弃口等,当然在使用过程中需要采用堵头等封堵件对清洗口和废液排弃口等进行密封。It should be noted that the
在上述实施例基础之上,封堵头210的结构形式可以为多种,例如:封堵头210呈球状结构设置,或者封堵头210呈针状结构设置,或者封堵头210呈柱状结构设置。On the basis of the above embodiments, the plugging
封堵头210的材质优选采用蓝宝石或陶瓷材料,保证硬度的同时还有良好的综合性能。The material of the plugging
如图6所示,在上述实施例基础之上,进一步地,液路控制组件200还包括运动柱塞220、密封圈230和扶正环240,封堵头210连接在运动柱塞220的一端,密封圈230和扶正环240沿远离封堵头210的方向依次设置。As shown in FIG. 6 , on the basis of the above embodiment, the fluid
本实施例中,相应的第一通道150和第二通道160内的结构与液路控制组件200的结构相适配,从而使进液控制组件中的密封圈230和扶正环240能够与第一通道150的内壁抵接,出液控制组件中的密封圈230和扶正环240能够与第二通道160的内壁抵接,利用两点确定一条直线的原理,能够保障运动柱塞220在第一通道150或者第二通道160内沿一条直线平稳滑动,避免运动柱塞220晃动,从而进一步保障封堵头210与介质通孔的密封效果。In this embodiment, the structures in the corresponding
如图6所示,在上述实施例基础之上,进一步地,液路控制组件200还包括设置在运动柱塞上的环形凸起260和套设在运动柱塞上的弹力件250;运动柱塞的远离封堵头210的一端伸出阀座本体110外,弹力件250的一端与环形凸起260抵接,另一端与阀座本体110抵接。As shown in FIG. 6 , on the basis of the above-mentioned embodiment, the fluid
本实施例中设置弹力件250(如弹簧、或者采用具有弹性材质制成的结构等)能够吸收介质给予的压力,从而能够使分配阀在高压环境下工作,进一步提高分配阀的适用范围。In this embodiment, the elastic member 250 (such as a spring, or a structure made of elastic material, etc.) can absorb the pressure given by the medium, thereby enabling the distribution valve to work in a high-pressure environment and further improving the application range of the distribution valve.
例如:弹力件250为弹簧,弹簧的线径2.5mm,中径14.5mm,高度20mm,圈数2.5mm,预压缩8mm,预紧力100N;弹簧力可承受注射泵系统压力=100/3.142(压力面积)=31.83MPa,即整个注射泵系统可承受压力大于30MPa。For example: the
可设置第一通孔和第二通孔贯穿整个阀体112设置,阀头111与阀体112的一端连接固定,在阀体112的与阀头111相对的一端设置固定板113,固定板113上设置有用于运动柱塞220的远离封堵头210穿过的通孔,还设置有用于固定弹力件250的腔室,通孔与腔室贯穿设置。这结构方便液路控制组件200的安装。The first through hole and the second through hole can be arranged throughout the
可以手动控制驱动液路控制组件200的滑动,但是自动化吸液供液才更方便使用,因此,通过电动控制来实现液路控制组件200的驱动。The sliding of the driving liquid
如图2和图7所示,在上述实施例基础之上,进一步地,分配阀还包括机架300和设置在机架300上的驱动组件400,驱动组件400与两个液路控制组件200均传动连接,以带动两个液路控制组件200在阀座本体110内向靠近或者远离相应的密封件140的方向运动;阀座组件100固定在机架300上。本实施例中,采用驱动组件400实现对液路控制组件200的驱动,则有利于实现注射泵系统的自动吸液供液,方便使用。As shown in FIG. 2 and FIG. 7 , on the basis of the above-mentioned embodiment, the distribution valve further includes a
其中,驱动组件400的结构形式可以为多种,例如:驱动组件400为丝杠副结构,包括电机、与电机的动力输出轴固定连接的丝杠以及套设在丝杠上的螺母,螺母与液路控制组件200的运动柱塞220传动连接;或者驱动组件400包括电机、与电机的动力输出轴固定连接的齿轮以及与齿轮啮合传动的齿条,齿条与螺母与液路控制组件200的运动柱塞220传动连接等。The
作为一种可选方案,驱动组件400包括驱动电机410、凸轮轴420、进液凸轮430和出液凸轮440,驱动电机410的动力输出轴与凸轮轴420固定连接,进液凸轮430和出液凸轮440均套设固定在凸轮轴420上;驱动电机410固定在机架300上,凸轮轴420转动连接在机架300上;两个液路控制组件200中的一个为进液控制组件,另一个为出液控制组件;进液凸轮430与进液控制组件传动连接,出液凸轮440与出液控制组件传动连接。As an optional solution, the
本实施例中,采用凸轮结构来实现对液路控制组件200的控制,一方面凸轮结构的结构紧凑,占用空间小,从而能够避免分配阀的体积大;另一方面,凸轮结构更易实现高精度控制,从而实现高精度注射。In this embodiment, the cam structure is used to control the liquid
其中,驱动电机410和凸轮轴420均可以为两个,一个凸轮轴420与一个驱动电机410对应连接,进液凸轮430套设固定在一个凸轮轴420上,出液凸轮440套设固定在另一个凸轮轴420,即进液凸轮430和出液凸轮440的运动分别被相互独立的驱动电机410控制。There may be two driving
作为一种可选方案,驱动电机410和凸轮轴420均为一个,进液凸轮430和出液凸轮440套设固定在同一个凸轮轴420上,这样能够进一步简化驱动组件400的结构,使驱动组件400的结构更加紧凑,占用空间小。As an optional solution, both the
需要注意的是,进液凸轮430和出液凸轮440的设置能够实现进液流道120完全打开的同时,出液流道130完全关闭。进液凸轮430和出液凸轮440的结构可以相同,但是最高点不能够重合,如进液凸轮430和出液凸轮440应互为180度设置。It should be noted that the arrangement of the
进液凸轮430和出液凸轮440均优选采用多相位结构设置,从而保障足够的开启行程,保证液体在液路控制组件200打开时可以顺畅的流动;液路控制组件200关闭时凸轮要与从动件之间有一定的距离;进液流道120或者出液流道130的开启和关闭要有一定的速度,以保证迅速的切换;和关闭时凸轮的升曲线和降曲线与滚轮520之间的工作压力角最好分别是个常数且小于300(凸轮机构的对心直动机构压力角的设计极限),以保证电机可以平稳的运转。(凸轮的设计可以采用公知常识算法来设置,也可以采用已公开的技术手段来设计)。The
进液凸轮430可以直接与进液控制组件中的运动柱塞220抵接以驱动进液控制组件中的运动柱塞220运动,出液凸轮440可以直接与出液控制组件中的运动柱塞220抵接以驱动出液控制组件中的运动柱塞220运动。The
作为一种可选方案,如图2和图8所示,分配阀还包括传动组件500,传动组件500包括滑动架510和转动连接在滑动架510上的滚轮520,滑动架510沿液路控制组件200的滑动方向滑设在机架300上;传动组件500为两个,一个为进液传动组件500,另一个为出液传动组件;进液传动组件500中的滚轮520与进液凸轮430抵接,出液传动组件500的滚轮520与出液凸轮440抵接。As an optional solution, as shown in FIG. 2 and FIG. 8 , the distribution valve further includes a
本实施例中,进液凸轮430或者出液凸轮440与相应的滚轮520抵接,凸轮轴420转动从而带动凸轮(为方便描述将进液凸轮430和出液凸轮440统称为凸轮)转动,凸轮的最低点至最高点或者最高点至最低点交替变化,从而推动滚轮520沿直线滑动,滚轮520与滑动架510连接,从而带动滑动架510在机架300上滑动,这种设置可以使液路控制组件200滑动平稳,提高液路控制组件200的运动精度。In this embodiment, the
其中,实现滑动架510与机架300滑设的方式可以为多种,例如:在滑动架510上设置滑轮,在机架300上设置滑槽。The sliding
可选地,在滑动架510和机架300两者中的一者上设置轨道,在两者中的另一者上设置与滑轨适配的滑块,这种滑设方式精度更易保障。Optionally, one of the sliding
进液凸轮430和出液凸轮440可以设置在滑动架510外实现与滚轮520的抵接。The
可选地,如图8所示,滑动架510为一U型件,滚轮520转动连接在滑动架510的开口处,滑动架510的底部可设有圆柱头内六方螺钉孔,通过螺钉实现滑动架510与液路控制组件200的连接;滑动架510的侧壁可装有一条直线导轨或者一个滑块;滑动架510的中部形成用于容纳凸轮的凸轮室。这结构使得驱动组件400和传动组件500的连接结构紧凑,占用空间小。Optionally, as shown in FIG. 8 , the sliding
在上述实施例基础之上,进一步地,分配阀还包括加热保温组件,加热保温组件设置在阀座本体110上,以对阀座本体110进行加热保温。本实施例中,在阀座本体110上设置加热保温组件从而能够实现对阀座本体110的加热保温,从而实现对流动在阀座本体110内的介质进行加热保温,提高分配阀的灵活性。On the basis of the above embodiment, further, the distribution valve further includes a heating and heat preservation component, and the heating and heat preservation component is disposed on the
具体地,加热保温组件包括固定板113和带有温度控制装置的加热带组成。固定板113用隔热材料制成,以防止操作者烫伤。使用时用螺钉将加热带和固定板113固定,注射泵系统通过温控装置可以按设定的温度范围对液体温度进行控制。Specifically, the heating and heat preservation assembly includes a fixing
在上述实施例基础之上,机架300将各个部件连接为一个整体,具体地,如图9所示,机架300由上板310、左侧板320、右侧板330和滑动支撑架340组成。左侧板320和右侧板330的下部与阀头111连接在一起,中部与固定板113连接固定,左侧板320和右侧板330的上部都设有轴承的安装孔,凸轮轴420穿过轴承,得到固定和支撑。凸轮轴420的驱动电机410固定在左侧板320和右侧板330两者中的一者上;左侧板320和右侧板330两者中的一者上装有光电开关,用以确定凸轮的零点位置;滑动支撑架340固定在左侧顶板和右侧板330上。上板310最后将左右侧板330固定,形成一个完整的机构。On the basis of the above-mentioned embodiment, the
本实用新型还提供一种注射泵系统,分配阀中的进液流道120的一端通过介质通孔用于与注射泵连通,分配阀中的出液流道130的一端通过介质通孔用于与注射泵连通。The present invention also provides a syringe pump system. One end of the
本实施例中,分配阀能够适用于颗粒性体系介质或者固液分离体系介质,适用范围广,从而本实施例提供的注射泵系统能够注射多种液体。In this embodiment, the distribution valve can be applied to a granular system medium or a solid-liquid separation system medium, and has a wide range of applications, so that the syringe pump system provided in this embodiment can inject a variety of liquids.
以上所述仅为本实用新型的较佳实施例而已,并不用以限制本实用新型,凡在本实用新型的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本实用新型的保护范围之内。The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the protection scope of the present invention.
此外,本领域的技术人员能够理解,尽管上述的一些实施例包括其它实施例中所包括的某些特征而不是其它特征,但是不同实施例的特征的组合意味着处于本申请的范围之内并且形成不同的实施例。例如,所要求保护的实施例的任意之一都可以以任意的组合方式来使用。另外,公开于该背景技术部分的信息仅仅旨在加深对本申请的总体背景技术的理解,而不应当被视为承认或以任何形式暗示该信息构成已为本领域技术人员所公知的现有技术。Furthermore, it will be understood by those skilled in the art that although some of the embodiments described above include certain features included in other embodiments and not others, combinations of features of different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments may be used in any combination. In addition, the information disclosed in this Background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art .
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CN110762273B (en) * | 2019-11-28 | 2024-11-19 | 欧世盛(北京)科技有限公司 | Dispensing valve and syringe pump system |
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