A pneumatic sample container cover, a pneumatic sample carrier, and a pneumatic sample delivery system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-14
AI Technical Summary
[0003]为解决目前粉末容易进入弹簧机构中造成弹簧卡住影响分析效率的技术问题，本申请提供一种风动载样盒盖、风动载样器及风动载样系统
[0023]根据本申请一个或多个实施例提供的一种风动载样盒盖、风动载样器及风动载样系统，风动载样盒盖用于与风动载样盒体配合使用，包括盒盖本体、弹簧机构、第一密封件和第二密封件，盒盖本体包括依次连接的端盖和连接柱，连接柱的周向设有密封槽，密封槽与连接柱同轴设置，连接柱的底部设有第一连接孔；弹簧机构设于连接柱，且位于密封槽上方；第一密封件嵌设于密封槽；第二密封件位于所述第一密封件下方，包括密封垫、垫板和紧固件，密封垫设有与第一连接孔对应的第二连接孔，垫板设有与第一连接孔对应的第三连接孔，紧固件依次穿设于第一连接孔、第三连接孔和第二连接孔，以将密封垫固定于连接柱上；第一密封件的外径和垫板的外径均小于密封垫的外径；密封垫的外径大于风动载样盒体的内径。
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Figure CN224632288U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of sample analysis equipment, specifically relating to a pneumatic sample carrier cover, a pneumatic sample carrier, and a pneumatic sample carrying system. Background Technology
[0002] In automated laboratory analysis, pneumatic sample feeders are widely used in automated systems for rapid analysis of large numbers of samples. Samples are typically stored in sample cartridges with lids to prevent contamination or spillage. However, existing sample cartridge lids present several problems in practical use. Most lids rely solely on the fit and pressure of the cartridges for sealing, lacking additional elastic sealing components. During sealing, tiny gaps inevitably exist between the cartridges, allowing powdery samples to easily enter the internal spring mechanism. Specifically, when processing powdery samples, fine powder particles may enter the spring mechanism through the gap between the lid and the cartridge, causing the spring to become stuck and preventing the lid from opening or closing properly, thus affecting analytical efficiency and accuracy. Summary of the Invention
[0003] To address the technical problem that powder easily enters the spring mechanism, causing the spring to jam and affecting analytical efficiency, this application provides a pneumatic sample container cover, a pneumatic sample carrier, and a pneumatic sample carrying system.
[0004] In a first aspect of this application, a pneumatic sample carrier cover is provided, the pneumatic sample carrier cover being used in conjunction with a pneumatic sample carrier body, comprising:
[0005] The box cover body includes an end cap and a connecting post connected in sequence. The connecting post is provided with a sealing groove in its circumference. The sealing groove is coaxially arranged with the connecting post. The bottom of the connecting post is provided with a first connecting hole.
[0006] A spring mechanism is provided on the connecting post and located above the sealing groove;
[0007] The first sealing element is embedded in the sealing groove;
[0008] The second sealing element includes a sealing gasket, a gasket, and fasteners. The sealing gasket has a second connecting hole corresponding to the first connecting hole, and the gasket has a third connecting hole corresponding to the first connecting hole. The fasteners are sequentially inserted through the third connecting hole, the second connecting hole, and the first connecting hole to fix the sealing gasket to the connecting post. The outer diameter of the first sealing element is smaller than the outer diameter of the sealing gasket. The outer diameter of the sealing gasket is larger than the inner diameter of the wind-driven sample carrier.
[0009] In some embodiments, the first seal is an O-ring, and the thickness of the first seal is greater than the thickness of the gasket.
[0010] In some embodiments, the first seal is made of rubber or silicone; the gasket is made of rubber or plastic.
[0011] In some embodiments, the fastener is a bolt, and the first connecting hole and the third connecting hole are threaded holes;
[0012] The second connecting hole is a through hole.
[0013] In some embodiments, the pad is a stainless steel plate, and the thickness of the pad is 1.2 to 1.8 mm.
[0014] In some embodiments, the spring mechanism includes a first ring, a second ring, a spring, and a ball. The first ring has a first groove, and the second ring has a second groove. The first groove and the second groove are arranged opposite to each other to form a placement area, and the spring and the ball are disposed in the placement area.
[0015] In some embodiments, the end cap is threadedly connected to the connecting post.
[0016] In a second aspect of this application, a wind-driven sample carrier is provided, comprising:
[0017] The aforementioned wind-driven sample container cover;
[0018] The box body has its upper surface fitted to the edge of the end cap, and the connecting post extends into the box body to seal the box body.
[0019] In a third aspect of this application, a wind-driven sample carrying system is provided, comprising:
[0020] Pipelines;
[0021] The aforementioned pneumatic sample carrier moves along the conveying pipeline.
[0022] In some embodiments, the length of the lid is less than the inner diameter of the delivery pipe.
[0023] According to one or more embodiments of this application, a pneumatic sample carrier cover, a pneumatic sample carrier, and a pneumatic sample carrying system are provided. The pneumatic sample carrier cover is used in conjunction with a pneumatic sample carrier body and includes a cover body, a spring mechanism, a first sealing element, and a second sealing element. The cover body includes an end cap and a connecting post connected in sequence. The connecting post has a sealing groove on its circumference, which is coaxially arranged with the connecting post. The bottom of the connecting post has a first connecting hole. The spring mechanism is located on the connecting post and is located above the sealing groove. The first sealing element is embedded in the sealing groove. The second sealing element is located below the first sealing element and includes a sealing gasket, a pad, and a fastener. The sealing gasket has a second connecting hole corresponding to the first connecting hole, and the pad has a third connecting hole corresponding to the first connecting hole. The fastener passes through the first connecting hole, the third connecting hole, and the second connecting hole in sequence to fix the sealing gasket to the connecting post. The outer diameter of the first sealing element and the outer diameter of the pad are both smaller than the outer diameter of the sealing gasket. The outer diameter of the sealing gasket is larger than the inner diameter of the pneumatic sample carrier body.
[0024] Therefore, this application provides a first sealing element and a second sealing element sequentially below the spring mechanism to achieve a double seal, effectively preventing powder samples from entering the interior of the pneumatic sample container lid. This ensures the normal opening and closing function of the pneumatic sample container lid and improves the reliability and operating efficiency of the autosampler. Compared to existing technologies where the seal between the pneumatic sample container lid and the pneumatic sample container body is mostly a simple fit or relies on gravity, often resulting in gaps that are difficult to detect with the naked eye, this application can solve the technical problem of existing lids causing spring jamming and functional failure due to powder penetration. Attached Figure Description
[0025] Figure 1 A schematic diagram of the structure of the wind-driven sample container cover is shown in one or more embodiments of this application.
[0026] Explanation of reference numerals in the attached drawings: 100-Pneumatic sample container cover, 110-Lid body, 111-End cap, 112-Connecting post, 120-Spring mechanism, 121-Spring, 122-Ball, 123-First ring, 124-Second ring, 130-First seal, 140-Second seal, 141-Sealing gasket, 142-Plate, 143-Fastener. Detailed Implementation
[0027] To enable those skilled in the art to more clearly understand this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0028] In existing technologies, sample boxes or tubes with standard-sized lids, typically between 80mm and 100mm in length, are widely used in various pneumatic sample delivery systems. However, the lid length is often generic and not optimized for narrow or curved sections of the pneumatic duct, making it prone to jamming. Furthermore, fine powder may enter the spring mechanism inside the lid through the gap between the lid and the sample box, causing the spring to become stuck and preventing the lid from opening or closing properly, thus affecting analytical efficiency and accuracy. Therefore, to address these issues, this solution provides a pneumatic sample delivery lid, a pneumatic sample carrier, and a pneumatic sample delivery system.
[0029] Please see Figure 1 According to a first aspect of this application, a pneumatic sample carrier cover 100 is provided. The pneumatic sample carrier cover 100 is used in conjunction with a pneumatic sample carrier body and includes a cover body 110, a spring mechanism 120, a first sealing element 130, and a second sealing element 140. The cover body 110 includes an end cap 111 and a connecting post 112 connected in sequence. The connecting post 112 has a sealing groove in its circumference, which is coaxially arranged with the connecting post 112. The bottom of the connecting post 112 has a first connecting hole. The spring mechanism 120 is disposed on the connecting post 112 and is located above the sealing groove. The first sealing element 130 is embedded in the end cap 111. A sealing groove; the second sealing element 140 is located below the first sealing element 130 and includes a sealing gasket 141, a pad 142, and a fastener 143. The sealing gasket 141 has a second connecting hole corresponding to the first connecting hole, and the pad 142 has a third connecting hole corresponding to the first connecting hole. The fastener 143 is sequentially inserted through the third connecting hole, the second connecting hole, and the first connecting hole to fix the sealing gasket 141 to the connecting post 112. The outer diameter of the first sealing element 130 and the outer diameter of the pad 142 are both smaller than the outer diameter of the sealing gasket 141. The outer diameter of the sealing gasket 141 is larger than the inner diameter of the wind-driven sample carrier.
[0030] When the pneumatic sample container lid 100 is opened, the first sealing member 130 is in its natural state, and the outer wall of the first sealing member 130 is separated from the inner wall of the pneumatic sample container body. When the pneumatic sample container lid 100 is closed, that is, when the first sealing member 130 is under pressure, the outer wall of the first sealing member 130 is tightly fitted with the inner wall of the pneumatic sample container body, forming a barrier that effectively prevents powder samples from entering the interior of the lid through the gap.
[0031] When the pneumatic sample container lid 100 is closed, the sealing gasket 141 is pressed by the edge of the pneumatic sample container body, thereby completely sealing the potential gap between the lid and the pneumatic sample container body, ensuring that the powder sample cannot penetrate the spring mechanism 120 inside the lid.
[0032] Therefore, this application provides a first sealing element 130 and a second sealing element 140 sequentially below the spring mechanism 120 to achieve a double seal, effectively preventing powder samples from entering the interior of the pneumatic sample container cover 100, thereby ensuring the normal opening and closing function of the pneumatic sample container cover 100 and improving the reliability and operating efficiency of the autosampler. Compared with the existing technology where the seal between the pneumatic sample container cover 100 and the pneumatic sample container body is mostly a simple fit or relies on gravity, often with gaps that are difficult to detect with the naked eye, this application can solve the technical problem of existing covers where the spring 121 is stuck and malfunctions due to powder penetration.
[0033] In some embodiments, the first sealing element 130 is an O-ring. The O-ring, through its own elasticity and shape, forms a tight and elastic pressure seal with the sample box when the lid is closed, actively blocking the powder's penetration path and providing an active sealing barrier. The bottom sealing gasket 141, through its compressibility, is deformed by compression when the lid is pressed, thereby completely filling all the tiny gaps between the bottom of the lid and the edge of the sample box, ensuring a seamless seal. The double seal of the sealing ring and the sealing gasket 141 prevents powder from entering the lid, thus solving the technical problem in the prior art where powder penetration causes the spring 121 to jam and malfunction.
[0034] In some embodiments, the thickness of the first sealing element 130 is greater than the thickness of the sealing gasket 141. The greater thickness of the first sealing element 130 compared to the sealing gasket 141 ensures that the lid and the box body form a seal after the first sealing element 130 is compressed. Conversely, the smaller thickness of the sealing gasket 141 allows for better compression and deformation during lid compression, resulting in the sealing gasket 141 bending and adhering to the inner wall of the box to form a seal.
[0035] In some embodiments, the first seal 130 is made of rubber or silicone; the first seal 130 can be silicone or EPDM rubber, which can provide corrosion resistance.
[0036] In other embodiments, the sealing gasket 141 is made of rubber or plastic. The sealing gasket 141 can be made of soft plastic, rubber, or other materials, and can achieve a sealing effect.
[0037] In some embodiments, the fastener 143 is a bolt, the first connecting hole and the third connecting hole are threaded holes, and the second connecting hole is a through hole. That is, the bolt can be inserted into the third connecting hole, the second connecting hole and the first connecting hole in sequence, and then threadedly connected to the third connecting hole and the first connecting hole to connect and fix the gasket 142 and the sealing gasket 141 to the connecting post 112.
[0038] In some embodiments, the pad 142 is a stainless steel plate, which can serve as a corrosion resistant material; the thickness of the pad 142 is 1.2 to 1.8 mm, and the thickness of the pad 142 can be 1.2 mm, 1.5 mm, 1.6 mm or 1.8 mm.
[0039] In some embodiments, the outer diameter of the pad 142 is smaller than the outer diameter of the sealing gasket 141. The pad 142 serves to fix the sealing gasket 141 and at the same time ensures a tight fit between the lid and the box body.
[0040] like Figure 1 As shown, in some embodiments, the spring mechanism 120 includes a first ring 123, a second ring 124, a spring 121, and a ball 122. The first ring 123 has a first groove, and the second ring 124 has a second groove. The first groove and the second groove are arranged opposite to each other to form a placement area, and the spring 121 and the ball 122 are disposed in the placement area. The spring mechanism 120 can adopt the structural features of the prior art, and this application does not impose excessive limitations.
[0041] In some embodiments, the end cap 111 is threadedly connected to the connecting post 112. The end cap 111 may have an internal thread, and the connecting post 112 may have an external thread, which facilitates the connection and fixation of the end cap 111 and the connecting post 112, and can also fix the spring mechanism 120, making maintenance convenient.
[0042] In a second aspect of this application, a pneumatic sample carrier is provided, including the aforementioned pneumatic sample carrier cover 100 and a housing. The upper surface of the housing fits against the edge of the end cap 111, and a connecting post 112 extends into the housing to seal it. The end cap 111 is I-shaped, and the upper surface of the housing fits against the edge of the end cap 111. Since the pneumatic sample carrier cover 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.
[0043] In a third aspect of this application, a pneumatic sample carrier system is provided, including a conveying pipe and the aforementioned pneumatic sample carrier, wherein the pneumatic sample carrier moves along the conveying pipe. Since the pneumatic sample carrier employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.
[0044] In some embodiments, the length of the lid is less than the inner diameter of the delivery pipe. In the prior art, the inner diameter of the delivery pipe is generally 74 mm, and it may be narrower at bends. Therefore, to avoid the lid getting stuck in the delivery pipe, the overall length of the sample lid is 55-65 mm, which can be 55 mm, 58.5 mm, 60 mm, 62.5 mm, or 65 mm, effectively preventing the pneumatic sample carrier from getting stuck during the movement of the delivery pipe. In the prior art, the delivery pipe may be narrow or curved. When the pneumatic sample carrier runs in the delivery pipe, the lid and the body may separate, and the lid may flip inside the delivery pipe. When the vertical length of the lid is greater than the diameter of the delivery pipe, the lid may get stuck inside the delivery pipe and cannot be removed. In this case, the pipe that is stuck on the lid needs to be removed and replaced with a new pipe. When the vertical length of the lid is less than the inner diameter of the delivery pipe, even if the lid flips from a vertical position to a horizontal position, or vice versa, the lid can still be easily removed inside the delivery pipe without getting stuck.
[0045] Therefore, this application can simultaneously solve the two core failure sources of "jamming" and "spring jamming," fundamentally reducing the failure rate and downtime in the automated analysis process. This ensures less sample loss, faster analysis speed, and lower operating and maintenance costs, thereby significantly improving the quality and efficiency of laboratory automation workflows.
[0046] In a third aspect of this application, a pneumatic sample carrier system is provided, including a conveying pipe and the aforementioned pneumatic sample carrier, wherein the pneumatic sample carrier moves along the conveying pipe. Since the pneumatic sample carrier employs all the technical solutions of all the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated upon here.
[0047] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0048] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0049] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0050] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. An air-activated sample loading cassette cover, comprising: The pneumatic sample container cover is used in conjunction with the pneumatic sample container body and includes: The box cover body includes an end cap and a connecting post connected in sequence. The connecting post is provided with a sealing groove in its circumference. The sealing groove is coaxially arranged with the connecting post. The bottom of the connecting post is provided with a first connecting hole. A spring mechanism is provided on the connecting post and located above the sealing groove; The first sealing element is embedded in the sealing groove; The second sealing element, located below the first sealing element, includes a sealing gasket, a pad, and fasteners. The sealing gasket has a second connecting hole corresponding to the first connecting hole, and the pad has a third connecting hole corresponding to the first connecting hole. The fasteners are sequentially inserted through the third connecting hole, the second connecting hole, and the first connecting hole to fix the sealing gasket to the connecting post. The outer diameter of the first sealing element and the outer diameter of the pad are both smaller than the outer diameter of the sealing gasket. The outer diameter of the sealing gasket is larger than the inner diameter of the wind-driven sample carrier.
2. The wind dynamic load cell cover of claim 1, wherein, The first sealing element is an O-ring, and the thickness of the first sealing element is greater than the thickness of the sealing gasket.
3. The wind dynamic load cell cover of claim 1, wherein, The first sealing element is made of rubber or silicone; the sealing gasket is made of rubber or plastic.
4. The wind load sample box cover according to any one of claims 1-3, characterized in that, The fastener is a bolt, and the first connecting hole and the third connecting hole are threaded holes; The second connecting hole is a through hole.
5. The wind load sample box cover according to any one of claims 1-3, characterized in that, The pad is made of stainless steel and has a thickness of 1.2 to 1.8 mm.
6. The wind-driven sample container cover according to any one of claims 1-3, characterized in that, The spring mechanism includes a first ring, a second ring, a spring, and a ball. The first ring has a first groove, and the second ring has a second groove. The first groove and the second groove are arranged opposite to each other to form a placement area. The spring and the ball are placed in the placement area.
7. The wind load sample box cover according to any one of claims 1-3, characterized in that, The end cap is threadedly connected to the connecting post.
8. A pneumatic sample loader characterized by, include: The wind-driven sample container cover according to any one of claims 1-7; The box body has its upper surface fitted to the edge of the end cap, and the connecting post extends into the box body to seal the box body.
9. A pneumatic sample loading system, comprising: include: Pipelines; The pneumatic sample carrier of claim 8, wherein the pneumatic sample carrier moves along the delivery pipeline.
10. The pneumatic load system of claim 9, wherein, The length of the lid is less than the inner diameter of the delivery pipe.