WO2021128684A1

WO2021128684A1 - Accommodation member, pump head and pressure pump

Info

Publication number: WO2021128684A1
Application number: PCT/CN2020/088313
Authority: WO
Inventors: 刘辉; 庞金伟; 潘芹; 冷德嵘; 李常青; 奚杰峰; 李宁; 刘春俊; 唐志; 韦建宇
Original assignee: 南微医学科技股份有限公司
Priority date: 2019-12-27
Filing date: 2020-04-30
Publication date: 2021-07-01
Also published as: CN111053958A

Abstract

The present application discloses an accommodation member (200), a pump head (11) and a pressure pump, belonging to the field of medical apparatuses. The present application is intended to address the problems associated with existing infusion pressure pumps, in which dust can easily get into a pump body (100), and a reciprocating rod can cause bodily harm to a person during a reciprocating movement thereof. The accommodation member (200) is configured to be externally connected to the pump body (100). The pump body (100) has an accommodation chamber (120) configured to accommodate a piston rod (300). The accommodation member (200) is provided with a slide channel (201) configured to be in communication with the accommodation chamber (120). The slide channel (201) is configured to allow insertion therein of a free end (320) of the piston rod (300) that extends out of the pump body (100). The pump head (11) comprises the pump body (100) and the accommodation member (200). The pressure pump comprises the pump head (11). The accommodation member (200) is externally connected to the pump body (100), the slide channel (201) inside the accommodation member (200) is in communication with the accommodation chamber (120) and allows insertion therein of the free end (320) of the piston rod (300) that extends out of the accommodation chamber (120). During a reciprocating movement of the piston rod (300), the accommodation member (200) is used to prevent dust from the free end (320) of the piston rod so as to avoid the reciprocating free end (320) of the piston rod (300) carrying external dust into the pump body (100); and in addition, the accommodation member (200) is used to shield the free end (320) of the piston rod (300), preventing the reciprocating free end (320) from causing bodily harm to a person.

Description

容置件、泵头及压力泵Receptacle, pump head and pressure pump

相关申请的交叉引用Cross references to related applications

本申请要求于2019年12月27日提交中国专利局的申请号为CN201911377496.3、名称为“容置件、泵头及压力泵”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application with the application number CN201911377496.3 and the name "Container, Pump Head and Pressure Pump" filed with the Chinese Patent Office on December 27, 2019, the entire content of which is incorporated by reference In this application.

技术领域Technical field

本申请涉及医疗器械领域，具体而言，涉及一种容置件、泵头及压力泵。This application relates to the field of medical devices, and specifically to a container, a pump head and a pressure pump.

背景技术Background technique

临床中粘膜下切除术中，可以通过输注压力泵实现内镜黏膜下注射***。现有输注压力泵中，存在灰尘易进入泵体以及伸缩杆伸缩易对人造成伤害的问题。In clinical submucosal resection, the endoscopic submucosal injection bulge can be achieved through the infusion pressure pump. In the existing infusion pressure pump, there are problems that dust easily enters the pump body and the expansion and contraction of the telescopic rod may cause harm to people.

发明内容Summary of the invention

本申请的目的包括，例如，提供了一种容置件，其能够改善现有的输注压力泵中，灰尘易进入泵体以及伸缩杆伸缩易对人造成伤害的问题。The purpose of the present application includes, for example, to provide a accommodating member, which can improve the problems of the existing infusion pressure pumps that dust easily enters the pump body and the expansion and contraction of the telescopic rod may cause harm to people.

本申请的目的还包括，提供了一种泵头，其能够改善现有的输注压力泵中，灰尘易进入泵体以及伸缩杆伸缩易对人造成伤害的问题。The objective of the present application also includes providing a pump head, which can improve the problems that dust easily enters the pump body and the expansion and contraction of the telescopic rod in the existing infusion pressure pump can cause harm to people.

本申请的目的还包括，提供了一种压力泵，其能够改善现有的输注压力泵中，灰尘易进入泵体以及伸缩杆伸缩易对人造成伤害的问题。The purpose of the present application also includes providing a pressure pump, which can improve the problems of the existing infusion pressure pumps that dust easily enters the pump body and the expansion and contraction of the telescopic rod may cause harm to people.

本申请的实施例可以这样实现：The embodiments of this application can be implemented as follows:

本申请的实施例提供的容置件，配置成连接于泵体的外部，泵体具有配置成容置活塞杆的容置腔室，容置件设置有配置成与容置腔室连通的滑动通道，滑动通道配置成使活塞杆伸出泵体外部的自由端伸入。The accommodating member provided by the embodiment of the present application is configured to be connected to the outside of the pump body, the pump body has an accommodating chamber configured to accommodate the piston rod, and the accommodating member is provided with a sliding member configured to communicate with the accommodating chamber The channel, the sliding channel is configured so that the free end of the piston rod extending out of the pump body extends into.

另外，本申请的实施例提供的容置件还可以具有如下附加的技术特征：In addition, the accommodating member provided by the embodiment of the present application may also have the following additional technical features:

可选地：容置件远离泵体的一端设置有相对滑动通道的内壁朝向滑动通道的中心延伸的止位部，以对活塞杆的自由端进行止位。Optionally, an end of the accommodating member away from the pump body is provided with a stop portion extending toward the center of the sliding channel relative to the inner wall of the sliding channel to stop the free end of the piston rod.

可选地：容置件设置有配置成连通滑动通道与容置件的外部的透气孔。Optionally: the accommodating member is provided with a vent configured to communicate the sliding channel with the outside of the accommodating member.

可选地：透气孔位于容置件远离泵体的一端。Optionally: the vent hole is located at an end of the accommodating member away from the pump body.

可选地：透气孔位于容置件的端部中心位置，透气孔正对活塞杆的自由端。Optionally: the vent hole is located at the center of the end of the accommodating member, and the vent hole is directly opposite to the free end of the piston rod.

可选地：容置件包括安装盖以及与安装盖连接的容置筒，安装盖以及容置筒共同限定出滑动通道，安装盖配置成可拆卸地连接于泵体。Optionally: the accommodating member includes a mounting cover and a accommodating cylinder connected with the mounting cover, the mounting cover and the accommodating cylinder jointly define a sliding channel, and the mounting cover is configured to be detachably connected to the pump body.

可选地：安装盖和容置筒一体成型。Optionally: the installation cover and the accommodating cylinder are integrally formed.

可选地：容置件还包括紧固件；Optionally: the accommodating part further includes fasteners;

安装盖设置有第一孔，第一孔配置成与泵体上设置的第二孔对应，紧固件同时与第一孔以及第二孔配合，以将安装盖固定至泵体。The mounting cover is provided with a first hole, the first hole is configured to correspond to the second hole provided on the pump body, and the fastener is matched with the first hole and the second hole at the same time to fix the mounting cover to the pump body.

可选地：第一孔、第二孔以及紧固件的数量均为多个且一一对应，多个第二孔绕活塞杆的周向均匀分布。Optionally: the numbers of the first holes, the second holes and the fasteners are multiple and correspond to each other, and the multiple second holes are evenly distributed around the circumference of the piston rod.

可选地：安装盖具有相对设置的第一端面以及第二端面，第一端面配置成与泵体密封接触，容置筒为圆筒，容置筒与安装盖的第二端面连接，容置筒的轴线与第二端面垂直。Optionally: the mounting cover has a first end surface and a second end surface disposed oppositely, the first end surface is configured to be in sealing contact with the pump body, the accommodating cylinder is a cylinder, and the accommodating cylinder is connected to the second end surface of the mounting cover to accommodate The axis of the barrel is perpendicular to the second end surface.

本申请的实施例还提供了一种泵头。泵头包括泵体和容置件，容置件与泵体连接。The embodiment of the present application also provides a pump head. The pump head includes a pump body and an accommodating part, and the accommodating part is connected with the pump body.

可选地：泵头还包括活塞杆以及连接于活塞杆的活塞，活塞位于容置腔室内，活塞可滑动地与容置腔室的内壁密封连接。Optionally: the pump head further includes a piston rod and a piston connected to the piston rod, the piston is located in the accommodating chamber, and the piston is slidably connected to the inner wall of the accommodating chamber in a sealed manner.

可选地：活塞位于活塞杆的中部，活塞杆的两端分别形成驱动端以及自由端，驱动端配置成与驱动装置连接，自由端可滑动地伸入滑动通道。Optionally: the piston is located in the middle of the piston rod, the two ends of the piston rod respectively form a driving end and a free end, the driving end is configured to be connected with the driving device, and the free end slidably extends into the sliding channel.

可选地：活塞包括活塞体以及弹性的密封件，活塞体与活塞杆连接，活塞体设置有环形槽，密封件呈环形，密封件套设于环形槽且与容置腔室的内壁密封连接。Optionally: the piston includes a piston body and an elastic sealing element, the piston body is connected with the piston rod, the piston body is provided with an annular groove, the sealing element is annular, and the sealing element is sleeved in the annular groove and is sealingly connected with the inner wall of the accommodating chamber .

可选地：泵体还包括第一单向阀、第二单向阀、第三单向阀以及第四单向阀；Optionally: the pump body further includes a first one-way valve, a second one-way valve, a third one-way valve, and a fourth one-way valve;

活塞将容置腔室分隔成第一腔室和第二腔室，泵体设置有第一进液口、第一出液口、第二进液口以及第二出液口，第一单向阀安装于第一进液口，第二单向阀安装于第一出液口，第三单向阀安装于第二进液口，第四单向阀安装于第二出液口；The piston divides the containing chamber into a first chamber and a second chamber. The pump body is provided with a first liquid inlet, a first liquid outlet, a second liquid inlet, and a second liquid outlet. The valve is installed in the first liquid inlet, the second one-way valve is installed in the first liquid outlet, the third one-way valve is installed in the second liquid inlet, and the fourth one-way valve is installed in the second liquid outlet;

第一进液口以及第一出液口均与第一腔室连通，第二进液口以及第二出液口均与第二腔室连通；Both the first liquid inlet and the first liquid outlet are in communication with the first chamber, and the second liquid inlet and the second liquid outlet are both in communication with the second chamber;

泵头具有活塞朝向第一预设方向移动时，第一腔室内的流体通过第一出液口流出，第二进液口处的流体流入第二腔室内的第一状态；以及活塞朝向与第一预设方向相反的第二预设方向移动时，第一进液口处的流体流入第一腔室内，第二腔室内的流体通过第二出液口流出的第二状态。The pump head has a first state in which when the piston moves toward the first preset direction, the fluid in the first chamber flows out through the first liquid outlet, and the fluid at the second liquid inlet flows into the second chamber; and the piston faces the same When moving in a second preset direction opposite to the preset direction, the fluid at the first inlet flows into the first chamber, and the fluid in the second chamber flows out through the second outlet in the second state.

本申请的实施例还提供了一种压力泵，压力泵包括泵头。The embodiment of the present application also provides a pressure pump, and the pressure pump includes a pump head.

本申请实施例的容置件、泵头及压力泵的有益效果包括，例如：The beneficial effects of the accommodating member, pump head, and pressure pump in the embodiments of the present application include, for example:

容置件，连接在泵体的外部，容置件设置的滑动通道配置成容纳伸出容置腔室的活塞杆的自由端，容置件对活塞杆自由端具有防尘作用，避免活塞杆自由端粘附灰尘并将外界灰尘带入容置腔室；同时活塞杆伸缩频率较快，容置件对活塞杆自由端还具有防护作用，不易对人造成人身伤害。The accommodating member is connected to the outside of the pump body. The sliding channel provided by the accommodating member is configured to accommodate the free end of the piston rod protruding from the accommodating chamber. The accommodating member has a dustproof effect on the free end of the piston rod to avoid the piston rod The free end adheres to dust and brings external dust into the accommodating chamber; at the same time, the piston rod telescopic frequency is faster, and the accommodating member also has a protective effect on the free end of the piston rod, and it is not easy to harm the human body.

泵头，包括泵体和容置件，在容置件的防尘和防护作用下，活塞杆往复移动中不易将外界灰尘带入泵体，也不易对人造成人身伤害。The pump head, including the pump body and the accommodating part, under the dustproof and protective effect of the accommodating part, the piston rod is not easy to bring external dust into the pump body during the reciprocating movement of the piston rod, and it is not easy to harm the human body.

压力泵，包括上述的泵头，泵头包括上述的容置件，容置件连接在泵体的外部，对活塞杆伸出泵体的自由端具有防尘和防护作用，使活塞杆伸缩过程中不易将外界灰尘带入泵体，也不易对人造成人身伤害。The pressure pump includes the above-mentioned pump head, and the pump head includes the above-mentioned accommodating member. The accommodating member is connected to the outside of the pump body and has dust-proof and protective effects on the free end of the piston rod extending out of the pump body, so that the piston rod can expand and contract. It is not easy to bring external dust into the pump body, and it is not easy to harm the human body.

附图说明Description of the drawings

为了更清楚地说明本申请实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本申请的某些实施例，因此不应被看作是对范围的限定，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相关的附图。In order to more clearly describe the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application, and therefore do not It should be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative work.

图1为本申请实施例提供的泵头的结构示意图；Figure 1 is a schematic structural diagram of a pump head provided by an embodiment of the application;

图2为本申请实施例提供的泵头的结构示意图；Figure 2 is a schematic structural diagram of a pump head provided by an embodiment of the application;

图3为本申请实施例提供的泵头的部分结构示意图。FIG. 3 is a schematic diagram of a part of the structure of a pump head provided by an embodiment of the application.

图标：11-泵头；12-驱动装置；100-泵体；101-第一进液口；102-第一出液口；103-第二进液口；104-第二出液口；111-第一单向阀；112-第二单向阀；113-第三单向阀；114-第四单向阀；120-容置腔室；121-第一腔室；122-第二腔室；200-容置件；201-滑动通道；202-透气孔；210-安装盖；211-第一端面；212-第二端面；213-第一孔；220-容置筒；300-活塞杆；310-驱动端；320-自由端；400-活塞；410-活塞体；420-环形槽；500-进液管；510-出液管；530-截止阀；600-无菌液体箱；610-手术器械。Icon: 11-pump head; 12-drive device; 100-pump body; 101-first liquid inlet; 102-first liquid outlet; 103-second liquid inlet; 104-second liquid outlet; 111 -The first one-way valve; 112-The second one-way valve; 113-The third one-way valve; 114-The fourth one-way valve; 120-Accommodating chamber; 121-The first chamber; 122-The second chamber Chamber; 200-containment member; 201-sliding channel; 202-vent hole; 210-mounting cover; 211-first end face; 212-second end face; 213-first hole; 220-containment cylinder; 300-piston Rod; 310-drive end; 320-free end; 400-piston; 410-piston body; 420-annular groove; 500-inlet pipe; 510-outlet pipe; 530-stop valve; 600-sterile liquid tank; 610-surgical instruments.

具体实施方式Detailed ways

为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本申请实施例的组件可以以各种不同的配置来布置和设计。In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various different configurations.

因此，以下对在附图中提供的本申请的实施例的详细描述并非旨在限制要求保护的本申请的范围，而是仅仅表示本申请的选定实施例。基于本申请中的实施例，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，都属于本申请保护的范围。Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。It should be noted that similar reference numerals and letters indicate similar items in the following figures. Therefore, once a certain item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

在本申请的描述中，需要说明的是，若出现术语“上”、“下”、“内”或“外”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，或者是该发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本申请和简化描述，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或者必须以特定的方位构造和操作，因此不能理解为对本申请的限制。In the description of this application, it should be noted that if the orientation or positional relationship indicated by the terms "upper", "lower", "inner" or "outer" appears, it is based on the orientation or positional relationship shown in the drawings, or It is the orientation or positional relationship that the product of the invention is usually placed in use, only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or must be constructed and configured in a specific orientation. Operation, therefore cannot be construed as a limitation of this application.

此外，若出现术语“第一”或“第二”等仅用于区分描述，而不能理解为指示或暗示相对重要性。In addition, if the terms "first" or "second" appear, they are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

需要说明的是，在不冲突的情况下，本申请的实施例中的特征可以相互结合。It should be noted that, in the case of no conflict, the features in the embodiments of the present application can be combined with each other.

现有的输注压力泵，在活塞杆往复移动的过程中，灰尘易进入泵体的问题。发明人进一步研究发现，由于活塞杆的两端均伸出泵体，活塞杆伸出泵体的部分与外界接触，易粘附灰尘，因此，活塞杆在往复移动的过程中易将粘附于自由端的灰尘带入泵体，影响泵体的正常使用，本实施例提供的容置件、泵头及压力泵能够改善该技术问题。The existing infusion pressure pump has a problem that dust easily enters the pump body during the reciprocating movement of the piston rod. The inventor further researched and found that since both ends of the piston rod extend out of the pump body, the part of the piston rod extending out of the pump body is in contact with the outside world and is easy to adhere to dust. Therefore, the piston rod tends to adhere to the pump body during the reciprocating movement. The dust at the free end is brought into the pump body and affects the normal use of the pump body. The accommodating member, pump head and pressure pump provided in this embodiment can improve this technical problem.

请参照图1，本申请实施例提供的容置件200，配置成连接于泵体100的外部，泵体100具有配置成容置活塞杆300的容置腔室120，容置件200设置有配置成与容置腔室120连通的滑动通道201，滑动通道201配置成使活塞杆300伸出泵体100外部的自由端320伸入。1, the accommodating member 200 provided by the embodiment of the present application is configured to be connected to the outside of the pump body 100. The pump body 100 has an accommodating chamber 120 configured to accommodate the piston rod 300, and the accommodating member 200 is provided with The sliding channel 201 is configured to communicate with the accommodating chamber 120, and the sliding channel 201 is configured to allow the piston rod 300 to extend out of the free end 320 outside the pump body 100 to extend into.

容置件200设置滑动通道201，容置件200与泵体100连接后，滑动通道201与容置腔室120连通。活塞杆300的自由端320伸出泵体100，并且可滑动地伸入滑动通道201内，在活塞杆300往复移动的过程中，容置件200对活塞杆300的自由端320具有防尘作用，避免外部灰尘粘附在活塞杆300的自由端320上，从而避免活塞杆300在往复移动的过程中将外部灰尘带入容置腔室120，造成药液污染无法使用。同时，容置件200对活塞杆300的自由端320还具有防护作用，避免活塞杆300伸缩过程中对人造成人身伤害。The accommodating member 200 is provided with a sliding channel 201. After the accommodating member 200 is connected to the pump body 100, the sliding channel 201 communicates with the accommodating chamber 120. The free end 320 of the piston rod 300 extends out of the pump body 100 and slidably extends into the sliding channel 201. During the reciprocating movement of the piston rod 300, the accommodating member 200 has a dustproof effect on the free end 320 of the piston rod 300 This prevents external dust from adhering to the free end 320 of the piston rod 300, so as to prevent the piston rod 300 from bringing external dust into the containing chamber 120 during the reciprocating movement of the piston rod 300, causing contamination of the chemical solution and unusable use. At the same time, the accommodating member 200 also has a protective effect on the free end 320 of the piston rod 300, so as to avoid injury to the artificial human body during the expansion and contraction process of the piston rod 300.

以图1中的相对位置进行介绍，容置件200位于泵体100的左端，容置件200设置的滑动通道201横向延伸。具体地，滑动通道201为柱形通道，与活塞杆300的自由端320滑动配合。活塞杆300的左端为自由端320，活塞杆300的自由端320伸出泵体100，活塞杆300在左右移动的过程中，活塞杆300的自由端320与容置件200的滑动通道201配合。容置件200对活塞杆300的自由端320具有防尘和防护作用。To introduce the relative position in FIG. 1, the accommodating member 200 is located at the left end of the pump body 100, and the sliding channel 201 provided by the accommodating member 200 extends laterally. Specifically, the sliding channel 201 is a cylindrical channel and is slidingly fitted with the free end 320 of the piston rod 300. The left end of the piston rod 300 is a free end 320, and the free end 320 of the piston rod 300 extends out of the pump body 100. When the piston rod 300 moves left and right, the free end 320 of the piston rod 300 is matched with the sliding channel 201 of the accommodating member 200 . The accommodating member 200 has dustproof and protective effects on the free end 320 of the piston rod 300.

请参照图2，本实施例中，容置件200远离泵体100的一端设置有相对滑动通道201的内壁朝向滑动通道201的中心延伸的止位部，以对活塞杆300的自由端320进行止位。止位部相对滑动通道201的内壁凸出设置，活塞杆300往复移动过程中，活塞杆300的自由端320抵住止位部，活塞杆300止位。也就是，止位部的位置，限制了活塞杆300的自由端320在滑动通道201内移动的长度范围，设置止位部有助于阻止异常情况下活塞杆300作超出设定的运动行程范围的移动，对活塞杆300起到保护作用。Referring to FIG. 2, in this embodiment, an end of the accommodating member 200 away from the pump body 100 is provided with a stop portion extending relative to the inner wall of the sliding channel 201 toward the center of the sliding channel 201, so as to carry out the free end 320 of the piston rod 300. Stop position. The stop portion is arranged protrudingly relative to the inner wall of the sliding channel 201. During the reciprocating movement of the piston rod 300, the free end 320 of the piston rod 300 abuts the stop portion, and the piston rod 300 stops. That is, the position of the stop portion restricts the length range of the free end 320 of the piston rod 300 to move in the sliding passage 201, and the setting of the stop portion helps prevent the piston rod 300 from exceeding the set movement stroke range under abnormal conditions. The movement protects the piston rod 300.

具体地，请参照图2，止位部为容置件200远离泵体100的一端端部。止位部设置在滑动通道201远离泵体100的一端。滑动通道201的长度限制了活塞杆300移动的范围。Specifically, referring to FIG. 2, the stop portion is an end of the accommodating member 200 away from the pump body 100. The stop portion is provided at one end of the sliding channel 201 away from the pump body 100. The length of the sliding passage 201 limits the range of movement of the piston rod 300.

继续参照图2，本实施例中，容置件200设置有配置成连通滑动通道201与容置件200的外部的透气孔202。透气孔202使得滑动通道201内的气压和外界保持一致，不会产生压强差，保证活塞杆300的自由端320能够在滑动通道201内顺利滑动。同时，因为泵体100配置成输送无菌产品，灭菌气体可以通过透气孔202进入滑动通道201内，再进入容置腔室120，在容置腔室120内为无菌产品创造无菌环境。Continuing to refer to FIG. 2, in this embodiment, the accommodating member 200 is provided with a vent 202 configured to communicate with the sliding channel 201 and the outside of the accommodating member 200. The vent 202 keeps the air pressure in the sliding channel 201 consistent with the outside without generating a pressure difference, and ensures that the free end 320 of the piston rod 300 can slide smoothly in the sliding channel 201. At the same time, because the pump body 100 is configured to deliver sterile products, the sterile gas can enter the sliding channel 201 through the vent 202, and then enter the accommodating chamber 120, creating a sterile environment for the aseptic products in the accommodating chamber 120 .

继续参照图2，本实施例中，透气孔202位于容置件200远离泵体100的一端。活塞杆300的自由端320在滑动通道201内往复移动的过程中，活塞杆300的自由端320和滑动通道201远离泵体100的一端之间形成的空腔体积处于不断变化的过程中，透气孔202设置在容置件200远离泵体100的一端，透气孔202与该空腔连通，能够保证该空腔与外界保持连通，也就是该空腔与外界不会产生压强差，从而活塞杆300的自由端320能在滑动通道201内顺畅滑动。具体地，透气孔202可以设置于容置件200上的任意位置，只要连通滑动通道201和容置件200的外部，使得活塞杆300的自由端320能够在滑动通道201内顺畅滑动即可。Continuing to refer to FIG. 2, in this embodiment, the vent 202 is located at an end of the accommodating member 200 away from the pump body 100. During the reciprocating movement of the free end 320 of the piston rod 300 in the sliding channel 201, the volume of the cavity formed between the free end 320 of the piston rod 300 and the end of the sliding channel 201 away from the pump body 100 is in a process of constant change, which is breathable The hole 202 is arranged at the end of the accommodating member 200 away from the pump body 100. The vent hole 202 communicates with the cavity, which can ensure that the cavity remains in communication with the outside, that is, the cavity does not generate a pressure difference with the outside, so that the piston rod The free end 320 of 300 can slide smoothly in the sliding channel 201. Specifically, the venting hole 202 can be provided at any position on the accommodating member 200 as long as the sliding channel 201 is connected to the outside of the accommodating member 200 so that the free end 320 of the piston rod 300 can slide smoothly in the sliding channel 201.

继续参照图2，本实施例中，透气孔202位于容置件200的端部中心位置，透气孔202正对活塞杆300的自由端320。透气孔202正对活塞杆300的自由端320，也就是透气孔202的中心线与活塞杆300的轴线重合，活塞杆300与滑动通道201滑动配合，透气孔202的中心线与滑动通道201的中心线重合。透气孔202位于容置件200的端部中心位置，滑动通道201的中心位置与容置件200的中心位置重合，滑动通道201呈柱状，容置件200也呈柱状。透气孔202正对滑动通道201的中心，在活塞杆300往复移动的过程中，活塞杆300的自由端320和滑动通道201远离泵体100的一端之间形成的空腔内的气体能够均匀地从正对滑动通道201中心的透气孔202流出，使该空腔内的压强分布更加均匀，避免活塞杆300的自由端320受力不均作偏离自身轴向的移动。Continuing to refer to FIG. 2, in this embodiment, the vent hole 202 is located at the center of the end of the accommodating member 200, and the vent hole 202 is directly opposite to the free end 320 of the piston rod 300. The vent hole 202 is directly opposite to the free end 320 of the piston rod 300, that is, the center line of the vent hole 202 coincides with the axis of the piston rod 300, the piston rod 300 is slidingly fitted with the sliding channel 201, and the center line of the vent hole 202 is aligned with the sliding channel 201 The center lines coincide. The vent 202 is located at the center of the end of the accommodating member 200, the center position of the sliding channel 201 coincides with the center of the accommodating member 200, the sliding channel 201 is cylindrical, and the accommodating member 200 is also cylindrical. The vent 202 is directly facing the center of the sliding channel 201. During the reciprocating movement of the piston rod 300, the gas in the cavity formed between the free end 320 of the piston rod 300 and the end of the sliding channel 201 away from the pump body 100 can be evenly distributed. It flows out from the vent 202 facing the center of the sliding channel 201, so that the pressure distribution in the cavity is more uniform, and the free end 320 of the piston rod 300 is prevented from moving away from its own axial direction due to uneven force.

继续参照图2，具体地，透气孔202开设于止位部上。具体地，容置件200设置一端开口的滑动通道201，滑动通道201的开口端配置成与容置腔室120连通，滑动通道201远离开口端的一端形成止位部。止位部的中心开设透气孔202。Continuing to refer to FIG. 2, specifically, the ventilation hole 202 is opened on the stop portion. Specifically, the accommodating member 200 is provided with a sliding channel 201 with an open end. The open end of the sliding channel 201 is configured to communicate with the accommodating chamber 120, and the end of the sliding channel 201 away from the open end forms a stop portion. A ventilation hole 202 is provided in the center of the stop portion.

再次参照图2，容置件200包括安装盖210以及与安装盖210连接的容置筒220，安装盖210以及容置筒220共同限定出滑动通道201，安装盖210配置成可拆卸地连接于泵体100。滑动通道201从安装盖210延伸至容置筒220内，安装盖210与泵体100可拆卸地连接，方便拆卸和组装。2 again, the accommodating member 200 includes a mounting cover 210 and a accommodating cylinder 220 connected to the mounting cover 210. The mounting cover 210 and the accommodating cylinder 220 jointly define a sliding channel 201, and the mounting cover 210 is configured to be detachably connected to Pump body 100. The sliding channel 201 extends from the mounting cover 210 to the accommodating barrel 220, and the mounting cover 210 is detachably connected with the pump body 100 to facilitate disassembly and assembly.

继续参照图2，本实施例中，安装盖210和容置筒220一体成型。便于加工。同理，安装盖210和容置筒220也可以分体设置后再连接。Continuing to refer to FIG. 2, in this embodiment, the mounting cover 210 and the accommodating cylinder 220 are integrally formed. Easy to process. In the same way, the mounting cover 210 and the accommodating cylinder 220 can also be separated and then connected.

继续参照图2，本实施例中，安装盖210具有相对设置的第一端面211以及第二端面212，第一端面211配置成与泵体100密封接触，容置筒220为圆筒，容置筒220与安装盖210的第二端面212连接，容置筒220的轴线与第二端面212垂直。2, in this embodiment, the mounting cover 210 has a first end surface 211 and a second end surface 212 opposed to each other. The first end surface 211 is configured to be in sealed contact with the pump body 100, and the accommodating barrel 220 is a cylinder that accommodates The barrel 220 is connected to the second end surface 212 of the mounting cover 210, and the axis of the accommodating barrel 220 is perpendicular to the second end surface 212.

以图2中的相对位置进行介绍，第一端面211位于安装盖210的左侧，第二端面212位于安装盖210的右侧，第一端面211与泵体100的外壁紧密接触，以实现安装盖210与泵体100之间的密封；容置筒220与第二端面212连接，且与安装盖210一体成型。Introduce the relative position in FIG. 2, the first end surface 211 is located on the left side of the mounting cover 210, the second end surface 212 is located on the right side of the mounting cover 210, and the first end surface 211 is in close contact with the outer wall of the pump body 100 to achieve installation. The sealing between the cover 210 and the pump body 100; the accommodating cylinder 220 is connected to the second end surface 212, and is integrally formed with the mounting cover 210.

继续参照图2，具体地，安装盖210垂直于套筒轴向的截面近似六边形。安装盖210 的整体形状近似六棱柱。第一端面211和第二端面212之间连接有六个侧面，六个侧面沿着活塞杆300的周向依次连接。六个侧面相对容置筒220的外壁凸出设置。Continuing to refer to FIG. 2, specifically, the cross section of the mounting cover 210 perpendicular to the axial direction of the sleeve is approximately hexagonal. The overall shape of the mounting cover 210 is similar to a hexagonal prism. Six side surfaces are connected between the first end surface 211 and the second end surface 212, and the six side surfaces are sequentially connected along the circumference of the piston rod 300. The six sides are protrudingly arranged relative to the outer wall of the accommodating cylinder 220.

继续参照图2，本实施例中，容置件200还包括紧固件；安装盖210设置有第一孔213，第一孔213配置成与泵体100上设置的第二孔对应，紧固件同时与第一孔213以及第二孔配合，以将安装盖210固定至泵体100。具体地，安装盖210具有相对容置筒220的外壁凸出的边沿，该边沿配置成实现与泵体100地连接。第一孔213开设于该边沿上。安装盖210也可以通过焊接的方式固定于泵体100。在其他实施例中，安装盖210与泵体100可以采用卡合、卡接等方式连接。Continuing to refer to FIG. 2, in this embodiment, the accommodating member 200 further includes a fastener; the mounting cover 210 is provided with a first hole 213, which is configured to correspond to the second hole provided on the pump body 100, and is fastened. The member is matched with the first hole 213 and the second hole at the same time to fix the mounting cover 210 to the pump body 100. Specifically, the mounting cover 210 has an edge protruding from the outer wall of the accommodating barrel 220, and the edge is configured to be connected to the pump body 100. The first hole 213 is opened on the edge. The mounting cover 210 may also be fixed to the pump body 100 by welding. In other embodiments, the mounting cover 210 and the pump body 100 may be connected by snapping, snapping, or the like.

继续参照图2，具体地，第一孔213和第二孔均为螺孔，紧固件采用螺栓，螺栓共同与第一孔213和第二孔配合，将安装盖210与泵体100固定。螺栓结构简单，安装盖210和泵体100拆卸和组装快捷方便。Continuing to refer to FIG. 2, specifically, the first hole 213 and the second hole are both screw holes, and bolts are used as fasteners, and the bolts cooperate with the first hole 213 and the second hole to fix the mounting cover 210 and the pump body 100. The bolt structure is simple, and the disassembly and assembly of the installation cover 210 and the pump body 100 are quick and convenient.

继续参照图2，本实施例中，第一孔213、第二孔以及紧固件的数量均为多个且一一对应，多个第二孔绕活塞杆300的周向均匀分布。对应的，多个第一孔213绕活塞杆300的周向均匀分布，多个紧固件也绕活塞杆300的周向均匀分布。一方面，增强安装盖210和泵体100的连接强度；另一个方面，使得安装盖210周向受力均匀，避免安装盖210上受力不均影响安装盖210的强度。Continuing to refer to FIG. 2, in this embodiment, the numbers of the first holes 213, the second holes and the fasteners are multiple and one-to-one correspondence, and the multiple second holes are evenly distributed around the circumference of the piston rod 300. Correspondingly, the multiple first holes 213 are evenly distributed around the circumference of the piston rod 300, and the multiple fasteners are also evenly distributed around the circumference of the piston rod 300. On the one hand, the connection strength between the installation cover 210 and the pump body 100 is enhanced; on the other hand, the circumferential force of the installation cover 210 is uniform, and the uneven force on the installation cover 210 is prevented from affecting the strength of the installation cover 210.

继续参照图2，具体地，第一孔213的数量为四个，第二孔的数量也为四个，紧固件的数量也为四个，相邻的两个第一孔213之间的周向间距相等，相邻的两个第二孔之间的周向间距相等，相邻的两个紧固件之间的周向间距相等。第一孔213的数量可以根据实际情况设置，第二孔和紧固件的数量与第一孔213的数量匹配。Continuing to refer to FIG. 2, specifically, the number of first holes 213 is four, the number of second holes is also four, and the number of fasteners is also four. Between two adjacent first holes 213 The circumferential distances are equal, the circumferential distances between two adjacent second holes are equal, and the circumferential distances between two adjacent fasteners are equal. The number of first holes 213 can be set according to actual conditions, and the number of second holes and fasteners matches the number of first holes 213.

根据本实施例提供的一种容置件200，容置件200的工作原理是：通过设置与容置腔室120连通的滑动通道201，以使伸出容置腔室120的活塞杆300的自由端320伸入，容置件200对活塞杆300的自由端320具有防尘和防护作用，避免将外部灰尘带入容置腔室120，以及伸缩过程中对人造成人身伤害。According to the accommodating member 200 provided in this embodiment, the working principle of the accommodating member 200 is: by providing a sliding channel 201 communicating with the accommodating chamber 120, the piston rod 300 extending from the accommodating chamber 120 The free end 320 extends in, and the accommodating member 200 has a dust-proof and protective effect on the free end 320 of the piston rod 300 to prevent external dust from being brought into the accommodating chamber 120 and injury to the artificial human body during the expansion and contraction process.

本实施例提供的一种容置件200至少具有以下优点：The accommodating member 200 provided in this embodiment has at least the following advantages:

容置件200设置与活塞杆300的自由端320滑动配合的滑动通道201，实现活塞杆300的平稳移动。The accommodating member 200 is provided with a sliding channel 201 slidingly fitted with the free end 320 of the piston rod 300 to realize the smooth movement of the piston rod 300.

容置件200设置连通滑动通道201和外部的透气孔202，保持滑动通道201与外部压强相同，避免产生压强差，实现活塞杆300自由端320在滑动通道201内的顺利滑动，避免压强差导致活塞杆300移动受阻。The accommodating member 200 is provided with a vent 202 connecting the sliding channel 201 and the outside, keeping the sliding channel 201 and the external pressure the same, avoiding pressure difference, realizing the smooth sliding of the free end 320 of the piston rod 300 in the sliding channel 201, and avoiding the pressure difference. The movement of the piston rod 300 is blocked.

容置件200与泵体100之间通过安装盖210可拆卸地连接，拆卸和组装方便快捷。The accommodating member 200 and the pump body 100 are detachably connected through the mounting cover 210, which is convenient and quick to disassemble and assemble.

本申请实施例还提供了一种压力泵，再次参照图1，压力泵包括泵头11。压力泵还包括驱动装置12、控制装置等。The embodiment of the present application also provides a pressure pump. Referring again to FIG. 1, the pressure pump includes a pump head 11. The pressure pump also includes a driving device 12, a control device, and the like.

请再次参照图1，本申请实施例还提供了一种泵头11，包括泵体100和容置件200，容置件200与泵体100连接。Please refer to FIG. 1 again. An embodiment of the present application also provides a pump head 11, which includes a pump body 100 and a receiving member 200, and the receiving member 200 is connected to the pump body 100.

继续参照图1，本实施例中，泵体100设置有容置腔室120。泵头11还包括活塞杆300以及连接于活塞杆300的活塞400，活塞400位于容置腔室120内，活塞400可滑动地与容置腔室120的内壁密封连接。活塞400与容置腔室120内壁滑动配合，活塞400可以在容置腔室120内往复移动，并且活塞400外壁与容置腔室120内壁之间密封，不会渗漏。Continuing to refer to FIG. 1, in this embodiment, the pump body 100 is provided with an accommodating chamber 120. The pump head 11 further includes a piston rod 300 and a piston 400 connected to the piston rod 300. The piston 400 is located in the accommodating chamber 120, and the piston 400 is slidably connected to the inner wall of the accommodating chamber 120 in a sealed manner. The piston 400 is in sliding fit with the inner wall of the accommodating chamber 120, the piston 400 can reciprocate in the accommodating chamber 120, and the outer wall of the piston 400 and the inner wall of the accommodating chamber 120 are sealed and will not leak.

继续参照图1，本实施例中，活塞400位于活塞杆300的中部，活塞杆300的两端分别形成驱动端310以及自由端320，驱动端310配置成与驱动装置12连接，自由端320可滑动地伸入滑动通道201。1, in this embodiment, the piston 400 is located in the middle of the piston rod 300, the two ends of the piston rod 300 respectively form a drive end 310 and a free end 320, the drive end 310 is configured to be connected to the drive device 12, the free end 320 can be Slidingly extends into the sliding channel 201.

活塞杆300的驱动端310和自由端320均伸出泵体100。以图1中的相对位置进行介绍，活塞杆300的左端为自由端320，活塞杆300的右端为驱动端310。容置件200位于泵体100的外部且与泵体100连接，容置件200上设置的滑动通道201与容置腔室120连通，使得伸出泵体100的活塞杆300的自由端320能够从容置腔室120伸入滑动通道201内，且与滑动通道201滑动配合。Both the driving end 310 and the free end 320 of the piston rod 300 extend out of the pump body 100. To introduce the relative position in FIG. 1, the left end of the piston rod 300 is the free end 320, and the right end of the piston rod 300 is the driving end 310. The accommodating member 200 is located outside the pump body 100 and is connected to the pump body 100. The sliding channel 201 provided on the accommodating member 200 communicates with the accommodating chamber 120, so that the free end 320 of the piston rod 300 protruding from the pump body 100 can be It extends from the accommodating chamber 120 into the sliding channel 201 and slidingly fits with the sliding channel 201.

驱动装置12位于泵体100的外部，活塞杆300的驱动端310伸出泵体100与驱动装置12连接，容置腔室120从左到右延伸，驱动装置12驱动活塞400在容置腔室120内左右往复移动，使得活塞杆300的自由端320在滑动通道201内左右移动。具体地，驱动装置12包括驱动电机、滑轨、丝杆和滑块，丝杆设置在滑轨上且与电机驱动连接，滑块与滑轨滑动配合且与丝杆螺纹连接，驱动电机驱动丝杆正反转的过程中，带动滑块沿着滑轨往复移动。滑块与驱动端310连接，在滑块沿滑轨往复移动的过程中，带动活塞杆300往复移动。The driving device 12 is located outside the pump body 100, the driving end 310 of the piston rod 300 extends out of the pump body 100 and is connected to the driving device 12, the accommodating chamber 120 extends from left to right, and the driving device 12 drives the piston 400 in the accommodating chamber The inside 120 reciprocates left and right, so that the free end 320 of the piston rod 300 moves left and right in the sliding channel 201. Specifically, the driving device 12 includes a driving motor, a sliding rail, a screw rod, and a sliding block. The screw rod is arranged on the sliding rail and is drivingly connected with the motor. The sliding block is slidably matched with the sliding rail and is threadedly connected with the screw rod. The driving motor drives the screw rod. During the forward and reverse rotation of the rod, the slider is driven to move back and forth along the slide rail. The sliding block is connected to the driving end 310, and drives the piston rod 300 to reciprocate during the reciprocating movement of the sliding block along the sliding rail.

继续参照图1，本实施例中，泵体100还包括第一单向阀111、第二单向阀112、第三单向阀113以及第四单向阀114；活塞400将容置腔室120分隔成第一腔室121和第二腔室 122，泵体100设置有第一进液口101、第一出液口102、第二进液口103以及第二出液口104，第一单向阀111安装于第一进液口101，第二单向阀112安装于第一出液口102，第三单向阀113安装于第二进液口103，第四单向阀114安装于第二出液口104；第一进液口101以及第一出液口102均与第一腔室121连通，第二进液口103以及第二出液口104均与第二腔室122连通；泵头11具有活塞400朝向第一预设方向移动时，第一腔室121内的流体通过第一出液口102流出，第二进液口103处的流体流入第二腔室122内的第一状态；以及活塞400朝向与第一预设方向相反的第二预设方向移动时，第一进液口101处的流体流入第一腔室121内，第二腔室122内的流体通过第二出液口104流出的第二状态。1, in this embodiment, the pump body 100 further includes a first one-way valve 111, a second one-way valve 112, a third one-way valve 113, and a fourth one-way valve 114; the piston 400 will accommodate the chamber 120 is divided into a first chamber 121 and a second chamber 122. The pump body 100 is provided with a first liquid inlet 101, a first liquid outlet 102, a second liquid inlet 103, and a second liquid outlet 104. The one-way valve 111 is installed in the first liquid inlet 101, the second one-way valve 112 is installed in the first liquid outlet 102, the third one-way valve 113 is installed in the second liquid inlet 103, and the fourth one-way valve 114 is installed At the second liquid outlet 104; the first liquid inlet 101 and the first liquid outlet 102 are both connected to the first chamber 121, and the second liquid inlet 103 and the second liquid outlet 104 are both connected to the second chamber 122 Connected; when the pump head 11 has the piston 400 moving toward the first preset direction, the fluid in the first chamber 121 flows out through the first liquid outlet 102, and the fluid at the second liquid inlet 103 flows into the second chamber 122 When the piston 400 moves toward a second preset direction opposite to the first preset direction, the fluid at the first liquid inlet 101 flows into the first chamber 121, and the fluid in the second chamber 122 The second state of flowing out through the second liquid outlet 104.

以图1中的相对位置进行介绍，第一腔室121和第二腔室122从左到右依次设置，活塞400与泵体100之间密封连接，第一腔室121和第二腔室122之间不连通，也不会泄露。泵体100上，第一进液口101、第一出液口102、第二进液口103以及第二出液口104从左到右依次设置。“第一预设方向”为图1中的箭头A所指的方向，“第二预设方向”为图1中箭头B所指的方向。Introduce with the relative position in FIG. 1, the first chamber 121 and the second chamber 122 are arranged in order from left to right, the piston 400 and the pump body 100 are in a sealed connection, the first chamber 121 and the second chamber 122 There is no communication between them, and there will be no leakage. On the pump body 100, a first liquid inlet 101, a first liquid outlet 102, a second liquid inlet 103, and a second liquid outlet 104 are sequentially arranged from left to right. The “first preset direction” is the direction indicated by arrow A in FIG. 1, and the “second preset direction” is the direction indicated by arrow B in FIG. 1.

泵头11在第一状态下，活塞400沿第一预设方向移动时，第一腔室121减小，第一腔室121内的流体经第一出液口102流出；第二腔室122增大，第二进液口103处的流体流向第二腔室122内。泵头11在第二状态下，活塞400沿第二预设方向移动，第一腔室121增大，第一进液口101处的流体流向第一腔室121；第二腔室122减小，第二腔室122内的流体经第二出液口104流出。泵头11在第一状态下，第一出液口102出液，第二状态下，第二出液口104出液，即在活塞400左右移动的过程中，可以实现连续出液。In the first state of the pump head 11, when the piston 400 moves in the first preset direction, the first chamber 121 is reduced, and the fluid in the first chamber 121 flows out through the first liquid outlet 102; the second chamber 122 Increased, the fluid at the second liquid inlet 103 flows into the second chamber 122. When the pump head 11 is in the second state, the piston 400 moves in the second preset direction, the first chamber 121 increases, the fluid at the first liquid inlet 101 flows to the first chamber 121; the second chamber 122 decreases , The fluid in the second chamber 122 flows out through the second liquid outlet 104. When the pump head 11 is in the first state, the first liquid outlet 102 discharges liquid, and in the second state, the second liquid outlet 104 discharges liquid, that is, when the piston 400 moves left and right, continuous liquid discharge can be realized.

继续参照图1，本实施例中，泵头11还包括进液管500和出液管510，进液管500的一端与无菌液体箱600连通，第一进液口101和第二进液口103均与进液管500连通。出液管510的一端与手术器械610连接，第一出液口102和第二出液口104均与出液管510连通。1, in this embodiment, the pump head 11 further includes a liquid inlet pipe 500 and a liquid outlet pipe 510, one end of the liquid inlet pipe 500 is connected to the sterile liquid tank 600, the first liquid inlet 101 and the second liquid inlet The ports 103 are all connected with the liquid inlet pipe 500. One end of the liquid outlet tube 510 is connected with the surgical instrument 610, and the first liquid outlet 102 and the second liquid outlet 104 are both in communication with the liquid outlet tube 510.

继续参照图1，具体地，第一单向阀111的进液端与进液管500连通，第一单向阀111的出液端与第一腔室121连通；第二单向阀112的进液端与第一腔室121连通，第二单向阀112的出液端与出液管510连通；第三单向阀113的进液端与进液管500连通，第三单向阀113的出液端与第二腔室122连通；第四单向阀114的进液端与第二腔室122连通，第四单向阀114的出液端与出液管510连通。Continuing to refer to FIG. 1, specifically, the liquid inlet end of the first one-way valve 111 communicates with the liquid inlet pipe 500, and the liquid outlet end of the first one-way valve 111 communicates with the first chamber 121; The liquid inlet end is communicated with the first chamber 121, the liquid outlet end of the second one-way valve 112 is communicated with the liquid outlet pipe 510; the liquid inlet end of the third one-way valve 113 is communicated with the liquid inlet pipe 500, and the third one-way valve The liquid outlet end of 113 communicates with the second chamber 122; the liquid inlet end of the fourth one-way valve 114 communicates with the second chamber 122, and the liquid outlet end of the fourth one-way valve 114 communicates with the liquid outlet pipe 510.

继续参照图1，本实施例中，出液管510设置有截止阀530。当驱动装置12中的驱动电机停电后，截止阀530启动。当驱动装置12断电后，截止阀530阻断出液管510，避免出液管510内的部分液体流入手术器械610。Continuing to refer to FIG. 1, in this embodiment, the liquid outlet pipe 510 is provided with a shut-off valve 530. When the driving motor in the driving device 12 is powered off, the shut-off valve 530 is activated. When the driving device 12 is powered off, the shut-off valve 530 blocks the liquid outlet pipe 510 to prevent part of the liquid in the liquid outlet pipe 510 from flowing into the surgical instrument 610.

工作过程：以图1中的相对位置进行介绍，当活塞400从图1中左侧向右侧(第二预设方向B)运动时，第一腔室121形成负压，进液管500的液体通过第一单向阀111进入第一腔室121内，同时，第二腔室122形成高压，第二腔室122内的液体通过第四单向阀114流入出液管510中。当活塞400从图1中的右侧向左侧(第一预设方向A)运动时，第一腔室121形成高压，第二腔室122内的液体通过第二单向阀112流入出液管510，同时，第二腔室122形成负压，进液管500的液体通过第三单向阀113进入第二腔室122内。由此，往复运动的过程中，实现第一腔室121、第二腔室122交替地对出液管510供液，实现持续稳定的泵送作业。Working process: Introduce the relative position in FIG. 1. When the piston 400 moves from the left to the right in FIG. 1 (the second preset direction B), the first chamber 121 forms a negative pressure, and the inlet pipe 500 The liquid enters the first chamber 121 through the first check valve 111, and at the same time, the second chamber 122 forms a high pressure, and the liquid in the second chamber 122 flows into the liquid outlet pipe 510 through the fourth check valve 114. When the piston 400 moves from the right to the left in FIG. 1 (first preset direction A), the first chamber 121 forms a high pressure, and the liquid in the second chamber 122 flows into and out of the liquid through the second check valve 112 At the same time, the second chamber 122 forms a negative pressure, and the liquid in the liquid inlet pipe 500 enters the second chamber 122 through the third one-way valve 113. As a result, during the reciprocating movement, the first chamber 121 and the second chamber 122 can alternately supply liquid to the liquid outlet pipe 510, thereby realizing a continuous and stable pumping operation.

在医疗器械中，特别是泵送无菌液体进行手术时，流量输送不持续、稳定。临床上目前普遍使用手动加压压力泵，其缺点在于压力较低，不能精确控制压力，排出的液体压力随着释放由大到小，关键是粘膜***分离需要多次连续手动加压，而每次加压容量小，使用者需要耗费很大体力，速度很慢；现有自动压力泵实现连续注液，但需要采用双腔双活塞400双驱动结构，往复致动两个独立的活塞杆300交替注液，这种结构设计复杂，需要精确控制两个驱动机构相互配合完成，整个控制过程也比较复杂。In medical equipment, especially when pumping sterile liquid for surgery, the flow rate is not continuous and stable. At present, manual pressurizing pressure pumps are commonly used in clinical practice. The disadvantages are that the pressure is low and the pressure cannot be accurately controlled. The pressure of the discharged liquid increases with the release. The key is that the mucosal bulge separation requires multiple continuous manual pressurization. The sub-pressurization capacity is small, the user needs to consume a lot of physical effort, and the speed is very slow; the existing automatic pressure pump realizes continuous liquid injection, but it needs to adopt a dual-chamber dual-piston 400 dual-drive structure to reciprocately actuate two independent piston rods 300 Alternate injection, this kind of structural design is complicated, and the two driving mechanisms need to be precisely controlled to cooperate with each other, and the entire control process is also relatively complicated.

本实施例提供的泵头11，通过采用双腔室单活塞400结构，实现自动不间断连续输出高压液体，克服了现有技术中双动力机构所存在的结构复杂、控制精度要求高的技术缺陷。本实施例提供的单活塞400双腔室连续输注泵，活塞400往复运动的过程中，实现第一腔室121、第二腔室122交替地对出液管510供液，实现持续稳定的泵送作业。与现有技术相比，可自动不间断输出高压液体，活塞400和驱动装置12仅设置一个，便于安装、控制，结构简单。The pump head 11 provided in this embodiment adopts a dual-chamber single-piston 400 structure to realize automatic, uninterrupted and continuous output of high-pressure liquid, which overcomes the technical defects of the dual-power mechanism in the prior art such as complex structure and high control accuracy requirements. . In the single-piston 400 double-chamber continuous infusion pump provided in this embodiment, during the reciprocating movement of the piston 400, the first chamber 121 and the second chamber 122 alternately supply liquid to the outlet pipe 510, achieving continuous and stable Pumping operation. Compared with the prior art, high-pressure liquid can be output automatically and uninterruptedly. Only one piston 400 and driving device 12 are provided, which is convenient for installation and control, and has a simple structure.

请参照图3，本实施例中，活塞400包括活塞体410以及弹性的密封件，活塞体410与活塞杆300连接，活塞体410设置有环形槽420，密封件呈环形，密封件套设于环形槽420且与容置腔室120的内壁密封连接。3, in this embodiment, the piston 400 includes a piston body 410 and an elastic seal. The piston body 410 is connected to the piston rod 300. The piston body 410 is provided with an annular groove 420. The seal is annular, and the seal is sleeved in The annular groove 420 is in sealing connection with the inner wall of the accommodating chamber 120.

活塞400与容置腔室120内壁之间的密封连接通过弹性的密封件实现。环形槽420在活塞体410上沿活塞杆300的周向延伸，密封件套设在环形槽420内。The sealing connection between the piston 400 and the inner wall of the accommodating chamber 120 is realized by an elastic seal. The annular groove 420 extends on the piston body 410 along the circumference of the piston rod 300, and the sealing member is sleeved in the annular groove 420.

以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application, All should be covered within the scope of protection of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

一种容置件，配置成连接于泵体的外部，所述泵体具有配置成容置活塞杆的容置腔室，其特征在于：A accommodating member configured to be connected to the outside of a pump body, the pump body having an accommodating chamber configured to accommodate a piston rod, and is characterized in that:

所述容置件设置有配置成与所述容置腔室连通的滑动通道，所述滑动通道配置成使所述活塞杆伸出所述泵体外部的自由端伸入。The accommodating member is provided with a sliding channel configured to communicate with the accommodating chamber, and the sliding channel is configured to allow the piston rod to extend out of the free end of the pump body.
根据权利要求1所述的容置件，其特征在于：The accommodating member according to claim 1, characterized in that:

所述容置件远离所述泵体的一端设置有相对所述滑动通道的内壁朝向所述滑动通道的中心延伸的止位部，以对所述活塞杆的自由端进行止位。An end of the accommodating member away from the pump body is provided with a stop portion extending toward the center of the sliding channel relative to the inner wall of the sliding channel to stop the free end of the piston rod.
根据权利要求1所述的容置件，其特征在于：The accommodating member according to claim 1, characterized in that:

所述容置件设置有配置成连通所述滑动通道与所述容置件的外部的透气孔。The accommodating member is provided with a ventilation hole configured to communicate the sliding channel with the outside of the accommodating member.
根据权利要求3所述的容置件，其特征在于：The accommodating member according to claim 3, characterized in that:

所述透气孔位于所述容置件远离所述泵体的一端。The vent hole is located at an end of the accommodating member away from the pump body.
根据权利要求4所述的容置件，其特征在于：The accommodating member according to claim 4, characterized in that:

所述透气孔位于所述容置件的端部中心位置，所述透气孔正对所述活塞杆的自由端。The vent hole is located at the center of the end of the accommodating member, and the vent hole is directly opposite to the free end of the piston rod.
根据权利要求1-5任一项所述的容置件，其特征在于：The accommodating member according to any one of claims 1-5, characterized in that:

所述容置件包括安装盖以及与所述安装盖连接的容置筒，所述安装盖以及所述容置筒共同限定出所述滑动通道，所述安装盖配置成可拆卸地连接于所述泵体。The accommodating member includes a mounting cover and a accommodating cylinder connected to the mounting cover, the mounting cover and the accommodating cylinder jointly define the sliding channel, and the mounting cover is configured to be detachably connected to the mounting cover. The pump body.
根据权利要求6所述的容置件，其特征在于：The accommodating member according to claim 6, characterized in that:

所述安装盖和所述容置筒一体成型。The installation cover and the accommodating cylinder are integrally formed.
根据权利要求6所述的容置件，其特征在于：The accommodating member according to claim 6, characterized in that:

所述容置件还包括紧固件；The accommodating member further includes a fastener;

所述安装盖设置有第一孔，所述第一孔配置成与所述泵体上设置的第二孔对应，所述紧固件同时与所述第一孔以及所述第二孔配合，以将所述安装盖固定至所述泵体。The mounting cover is provided with a first hole, the first hole is configured to correspond to a second hole provided on the pump body, and the fastener is matched with the first hole and the second hole at the same time, To fix the mounting cover to the pump body.
根据权利要求8所述的容置件，其特征在于：The accommodating member according to claim 8, characterized in that:

所述第一孔、所述第二孔以及所述紧固件的数量均为多个且一一对应，多个所述第二孔绕所述活塞杆的周向均匀分布。The numbers of the first holes, the second holes and the fasteners are multiple and one-to-one, and the multiple second holes are evenly distributed around the circumference of the piston rod.
根据权利要求6所述的容置件，其特征在于：The accommodating member according to claim 6, characterized in that:

所述安装盖具有相对设置的第一端面以及第二端面，所述第一端面配置成与所述泵体密封接触，所述容置筒为圆筒，所述容置筒与所述安装盖的第二端面连接，所述容置筒的轴线与所述第二端面垂直。The mounting cover has a first end surface and a second end surface disposed oppositely, the first end surface is configured to be in sealing contact with the pump body, the accommodating cylinder is a cylinder, and the accommodating cylinder is connected to the mounting cover The second end surface of the accommodating cylinder is connected, and the axis of the accommodating cylinder is perpendicular to the second end surface.
一种泵头，其特征在于：A pump head characterized by:

所述泵头包括泵体和权利要求1-10任一项所述的容置件，所述容置件与所述泵体连接。The pump head includes a pump body and the accommodating part according to any one of claims 1-10, and the accommodating part is connected with the pump body.
根据权利要求11所述的泵头，其特征在于：The pump head according to claim 11, characterized in that:

所述泵头还包括活塞杆以及连接于所述活塞杆的活塞，所述活塞位于所述容置腔室内，所述活塞可滑动地与所述容置腔室的内壁密封连接。The pump head further includes a piston rod and a piston connected to the piston rod, the piston is located in the accommodation chamber, and the piston is slidably connected to the inner wall of the accommodation chamber in a sealing manner.
根据权利要求12所述的泵头，其特征在于：The pump head according to claim 12, characterized in that:

所述活塞位于所述活塞杆的中部，所述活塞杆的两端分别形成驱动端以及所述自由端，所述驱动端配置成与驱动装置连接，所述自由端可滑动地伸入所述滑动通道。The piston is located in the middle of the piston rod. The two ends of the piston rod respectively form a driving end and the free end. The driving end is configured to be connected to a driving device, and the free end slidably extends into the Sliding channel.
根据权利要求13所述的泵头，其特征在于：The pump head according to claim 13, characterized in that:

所述活塞包括活塞体以及弹性的密封件，所述活塞体与所述活塞杆连接，所述活塞体设置有环形槽，所述密封件呈环形，所述密封件套设于所述环形槽且与所述容置腔室的内壁密封连接。The piston includes a piston body and an elastic seal, the piston body is connected to the piston rod, the piston body is provided with an annular groove, the seal is annular, and the seal is sleeved in the annular groove And it is in sealed connection with the inner wall of the accommodating chamber.
根据权利要求12所述的泵头，其特征在于：The pump head according to claim 12, characterized in that:

所述泵体还包括第一单向阀、第二单向阀、第三单向阀以及第四单向阀；The pump body further includes a first one-way valve, a second one-way valve, a third one-way valve, and a fourth one-way valve;

所述活塞将所述容置腔室分隔成第一腔室和第二腔室，所述泵体设置有第一进液口、第一出液口、第二进液口以及第二出液口，所述第一单向阀安装于第一进液口，所述第二单向阀安装于所述第一出液口，所述第三单向阀安装于所述第二进液口，所述第四单向阀安装于所述第二出液口；The piston divides the accommodating chamber into a first chamber and a second chamber, and the pump body is provided with a first liquid inlet, a first liquid outlet, a second liquid inlet, and a second liquid outlet Port, the first check valve is installed at the first liquid inlet, the second check valve is installed at the first liquid outlet, and the third check valve is installed at the second liquid inlet , The fourth one-way valve is installed at the second liquid outlet;

所述第一进液口以及所述第一出液口均与所述第一腔室连通，第二进液口以及第二出液口均与所述第二腔室连通；The first liquid inlet and the first liquid outlet are both in communication with the first chamber, and the second liquid inlet and the second liquid outlet are both in communication with the second chamber;

所述泵头具有所述活塞朝向第一预设方向移动时，所述第一腔室内的流体通过所述第一出液口流出，所述第二进液口处的流体流入所述第二腔室内的第一状态；以及所述活塞朝向与所述第一预设方向相反的第二预设方向移动时，所述第一进液口处的流体流入所述第一腔室内，所述第二腔室内的流体通过所述第二出液口流出的第二状态。When the pump head has the piston moving toward the first preset direction, the fluid in the first chamber flows out through the first liquid outlet, and the fluid at the second liquid inlet flows into the second A first state in the chamber; and when the piston moves in a second preset direction opposite to the first preset direction, the fluid at the first liquid inlet flows into the first chamber, the A second state where the fluid in the second chamber flows out through the second liquid outlet.
一种压力泵，其特征在于：A pressure pump characterized by:

所述压力泵包括权利要求11-15任一项所述的泵头。The pressure pump includes the pump head according to any one of claims 11-15.