Liquid sampling metering detection device

Abstract

The utility model discloses a liquid sampling measurement detection device belongs to detection device technical field, a liquid sampling measurement detection device, including the sampling cylinder, one side of sampling cylinder is connected with the movable lid through the thread, the inner wall sliding connection of movable lid has the extraction rod, the one end of extraction rod passes through movable lid and is provided with rubber piston pad, rubber piston pad and the inner wall sliding connection of sampling cylinder, the one side of sampling cylinder away from movable lid is provided with the connector, and the inner wall of connector is connected with the splice head, the utility model discloses through setting up the extraction pipe of flexible replacement of splice head can be connected in the connector, makes the device can change the extraction pipe of suitable length, diameter or material according to different sampling position, sampling liquid characteristic (such as viscosity, corrosive nature etc.), for example, when sampling in the narrow space, change and use the slender extraction pipe, when sampling in the viscous liquid, change and use the large -diameter extraction pipe, ensure that can effectively in -depth sampling point and smoothly extract the liquid.

Description

Technical Field

[0001] This utility model relates to the field of detection device technology, and in particular to a liquid sampling and metering detection device. Background Technology

[0002] In numerous fields such as chemical engineering, environmental monitoring, food testing, and biomedicine, liquid sampling and metering is a crucial foundational task. Its accuracy directly impacts the reliability of subsequent experimental analysis, quality control, and safety assessments. However, existing liquid sampling and metering devices on the market exhibit several problems in practical applications, failing to meet complex and varied sampling needs. Different sampling scenarios require significantly different extraction tube specifications. For example, when sampling liquids in narrow pipes, deep wells, or small containers, long, thin, and flexible extraction tubes are needed to ensure smooth access to the sampling point. Conversely, when handling highly viscous, poorly flowing liquids, large-diameter extraction tubes facilitate smooth extraction and reduce the risk of blockage. However, most existing liquid sampling and metering devices use fixed-specification extraction tubes, unable to flexibly change them according to specific sampling locations and liquid characteristics. This often necessitates operators carrying multiple sampling devices of different specifications, increasing equipment costs and carrying burdens while reducing work efficiency. Moreover, when changing sampling scenarios, the poor adaptability of the device may prevent the accurate acquisition of the required sample, which seriously affects the sampling effect and thus has an adverse impact on the subsequent test results.

[0003] Therefore, in order to address this problem, this utility model provides a liquid sampling and metering detection device. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a liquid sampling and metering detection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a liquid sampling and metering detection device, comprising a sampling cylinder, a movable cover connected to one side of the sampling cylinder by a thread, an extraction rod slidably connected to the inner wall of the movable cover, a rubber piston pad provided at one end of the extraction rod passing through the movable cover, the rubber piston pad being slidably connected to the inner wall of the sampling cylinder, a connector provided on the side of the sampling cylinder away from the movable cover, a splice joint being snapped into the inner wall of the connector, and an extraction tube provided on the side of the splice joint.

[0006] Preferably, the surface of the movable cover is provided with anti-slip textures at equal intervals, which are used for tightening.

[0007] Preferably, a push seat is provided at the end of the extraction rod away from the rubber piston pad, and a patterned groove is formed on the side of the push seat.

[0008] Preferably, the connector has a side seat on its side, and the top of the side seat is connected to a limiting threaded rod by a thread, which is used to lock the position of the joint.

[0009] Preferably, a scale bar is provided on one side of the sampling cylinder, and an indicator frame is provided on the surface of the extraction rod near the push base, the indicator frame being located on the side of the scale bar.

[0010] Compared with the prior art, the present invention provides a liquid sampling and metering detection device, which has the following beneficial effects:

[0011] 1. This liquid sampling and metering detection device features a flexible interchangeable extraction tube with a snap-fit ​​connector at the connector. This allows the device to quickly change the extraction tube of appropriate length, diameter, or material according to different sampling locations and liquid characteristics (such as viscosity and corrosiveness). For example, a slender extraction tube can be used when sampling in a narrow space, while a large-diameter extraction tube can be used when sampling viscous liquids, ensuring that the device can effectively reach the sampling point and successfully extract the liquid.

[0012] 2. This liquid sampling and metering detection device ensures the stability of the connection by locking the splice joint with the limiting threaded rod, preventing the extraction tube from loosening or falling off during the sampling process. Combined with the tight sliding connection between the rubber piston pad and the inner wall of the sampling cylinder, it effectively prevents liquid leakage, thereby comprehensively ensuring the sampling effect and improving the accuracy and reliability of the sampling. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a liquid sampling and metering detection device proposed in this utility model;

[0014] Figure 2 This is a side view of the structure of a liquid sampling and metering detection device proposed in this utility model;

[0015] Figure 3 This utility model proposes a liquid sampling and metering detection device. Figure 2 Enlarged view of area A in the middle.

[0016] In the diagram: 1. Sampling cylinder; 2. Movable cover; 201. Anti-slip texture; 3. Extraction rod; 4. Rubber piston pad; 5. Push seat; 6. Connector; 7. Joint; 8. Extraction tube; 9. Side seat; 10. Limiting threaded rod; 11. Scale strip; 12. Indicator. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0019] Reference Figures 1-3 A liquid sampling and metering detection device includes a sampling cylinder 1. A movable cover 2 is tightly connected to one side of the sampling cylinder 1 via threads to ensure a tight seal at the connection. The inner wall of the movable cover 2 is slidably connected to an extraction rod 3, allowing the extraction rod 3 to slide freely within the movable cover 2. A rubber piston gasket 4 is fixedly installed at one end of the extraction rod 3 that passes through the movable cover 2. The rubber piston gasket 4 is tightly slidably connected to the inner wall of the sampling cylinder 1 to form a good seal and prevent liquid leakage. A connector 6 is provided on the side of the sampling cylinder 1 away from the movable cover 2. The inner wall of the connector 6 is designed with a snap-fit ​​structure for snapping onto a splice 7. An extraction tube 8 is connected to the side of the splice 7. By replacing extraction tubes 8 of different lengths or diameters, operators can change them according to the needs of different sampling locations to ensure sampling effectiveness. At the same time, this design also facilitates quick replacement and maintenance, improving the ease of use and maintenance efficiency of the device. By implementing the above structure, this liquid sampling and metering detection device achieves the function of flexibly replacing the extraction tube 8, adapting to the needs of different sampling locations, while ensuring sampling accuracy and ease of device maintenance.

[0020] The movable cover 2 has anti-slip textures 201 evenly spaced on its surface. These anti-slip textures 201 are designed as raised or recessed stripes, which increases the friction of the movable cover 2 surface. When tightening the movable cover 2, the anti-slip textures 201 can provide a better grip, prevent slippage, and ensure a tight connection between the movable cover 2 and the sampling cylinder 1. By implementing the design of the anti-slip textures 201, the movable cover 2 is more stable during tightening, which improves the sealing performance and ease of use of the device.

[0021] The end of the extraction rod 3 away from the rubber piston pad 4 is fixedly equipped with a push seat 5. The side of the push seat 5 has multiple patterned grooves. These patterned grooves are designed as raised or recessed stripes, which increases the friction on the side of the push seat 5. When pushing the extraction rod 3, the patterned grooves can provide a better grip, prevent hand slippage, and ensure the smooth pushing of the extraction rod 3. By implementing the patterned groove design, the push seat 5 is more stable during the pushing process, which improves the ease of operation and accuracy of the device.

[0022] The connector 6 is fixedly provided with a side seat 9 on its side. The top of the side seat 9 is connected to a limiting thread rod 10 by a thread. When the splice 7 is inserted into the connector 6, the lower end of the limiting thread rod 10 can be rotated to press tightly against the splice 7, thereby locking the position of the splice 7 and preventing it from loosening or falling off during the sampling process. By implementing the design of the limiting thread rod 10, the position of the splice 7 on the connector 6 is effectively fixed, which improves the stability of the device and the sampling accuracy.

[0023] The sampling cylinder 1 has a scale bar 11 on one side, with clear graduations to indicate the volume of liquid inside. The extraction rod 3 has an indicator frame 12 fixedly mounted on one end near the push base 5. The indicator frame 12 is located on the side of the scale bar 11. When the extraction rod 3 is pushed, the indicator frame 12 moves with the extraction rod 3, thus indicating the volume of liquid inside the sampling cylinder 1. By implementing the design of the scale bar 11 and the indicator frame 12, the staff can intuitively read the volume of liquid inside the sampling cylinder 1, improving the accuracy and convenience of sampling.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A liquid sampling and metering detection device, comprising a sampling cylinder (1), characterized in that, A movable cover (2) is threadedly connected to one side of the sampling cylinder (1). An extraction rod (3) is slidably connected to the inner wall of the movable cover (2). A rubber piston pad (4) is provided at one end of the extraction rod (3) that passes through the movable cover (2). The rubber piston pad (4) is slidably connected to the inner wall of the sampling cylinder (1). A connector (6) is provided on the side of the sampling cylinder (1) away from the movable cover (2). A splice (7) is snapped into the inner wall of the connector (6). An extraction tube (8) is provided on the side of the splice (7).

2. The liquid sampling and metering detection device according to claim 1, characterized in that, The surface of the movable cover (2) is provided with anti-slip textures (201) at equal intervals, which are used for tightening.

3. The liquid sampling and metering detection device according to claim 1, characterized in that, The extraction rod (3) is provided with a push seat (5) at the end away from the rubber piston pad (4), and the push seat (5) has a patterned groove on its side.

4. The liquid sampling and metering detection device according to claim 1, characterized in that, The connector (6) has a side seat (9) on its side. The top of the side seat (9) is connected to a limiting thread rod (10) by a thread. The limiting thread rod (10) is used to lock the position of the splice (7).

5. A liquid sampling and metering detection device according to claim 3, characterized in that, A scale bar (11) is provided on one side of the sampling cylinder (1), and an indicator frame (12) is provided on the surface of the extraction rod (3) near the push seat (5). The indicator frame (12) is located on the side of the scale bar (11).

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