Water sample transfer container

Abstract

The utility model discloses a water sample transfer container which comprises a bottle body and a cover body, the cover body comprises a cover body base, the cover body is in threaded connection with a bottle opening of the bottle body through the cover body base, the cover body base is provided with a guide sleeve, and the guide sleeve is internally in threaded connection with a lifting extrusion rod which penetrates through the cover body base and can move up and down. The lower end of the lifting extrusion rod is sleeved with a flexible extrusion head, the bottom of the extrusion head is an arc-shaped face, a through vent hole is formed in the lifting extrusion rod, and a plugging assembly with an inverted-Y-shaped exhaust channel is connected into the vent hole in a threaded mode. The volume can be flexibly adjusted according to a loaded water sample, the oxidation risk of the water sample in the transportation process is greatly reduced, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] This utility model relates to the field of water sample transfer technology, specifically to a water sample transfer container whose volume can be flexibly adjusted according to the amount of liquid loaded. Background Technology

[0002] Water sample monitoring is a crucial part of environmental water quality analysis, encompassing multi-dimensional detection of physical properties, metallic compounds, non-metallic inorganic substances, organic compounds, biological indicators, and hydrological and meteorological parameters. Due to the time lag between water sample collection and laboratory analysis, changes in environmental conditions, microbial metabolic activity, and chemical reactions can alter the physical parameters and chemical composition of the water sample, affecting the accuracy of the test results.

[0003] Chinese utility model patent CN 219237786U, through its design of a mounting shell, mounting block, and venting groove, reduces residual air inside the container, lowering the risk of oxidation caused by water sample contact with oxygen during transportation. However, this technology still has significant drawbacks: the fixed design of the mounting shell and mounting block lacks adjustment flexibility and cannot be dynamically adjusted according to the water sample volume. If the water sample is insufficiently filled, tiny air bubbles can easily remain between the liquid surface and the mounting block, making them difficult for operators to observe and requiring repeated disassembly and adjustment, resulting in low efficiency. In addition, its threaded rod adopts a split design, which is easily loosened by bumps during transportation, leading to water sample leakage or external air infiltration, exacerbating water sample oxidation and composition changes, and affecting the test results. Utility Model Content

[0004] This invention proposes a water sample transfer container, the purpose of which is to solve the problem that existing water sample transfer containers cannot flexibly adjust their volume according to the amount of liquid added, causing water sample shaking, aggravating oxidation and affecting the test results.

[0005] The technical solution of this utility model is as follows:

[0006] A water sample transfer container includes a bottle body and a cap, characterized in that: the cap body includes a cap body base, the cap body is threadedly connected to the bottle mouth of the bottle body through the cap body base, the cap body base is provided with a guide sleeve, the guide sleeve is threadedly connected with a lifting extrusion rod that penetrates the cap body base and can move up and down, the lower end of the lifting extrusion rod is fitted with a flexible extrusion head, the bottom of the extrusion head is an arc-shaped surface, the lifting extrusion rod is provided with a through vent hole, and the vent hole is threadedly connected with a sealing component with an inverted Y-shaped exhaust channel.

[0007] As a further improvement of this utility model, the lifting extrusion rod is provided with an annular groove in the middle, and the sealing assembly includes a core rod, which is a hollow rod-shaped structure. A sealing head is fixed at the bottom of the core rod, and the sealing head is engaged with the groove. A sealing gasket is provided between the sealing head and the groove.

[0008] Optionally, the core rod is threaded to the vent hole.

[0009] Optionally, the core rod is slidably connected to the vent, and a movable plug for controlling gas discharge is connected to the upper part of the core rod.

[0010] Specifically, the movable plug includes a plug post with a T-shaped hole at the bottom, the T-shaped hole communicating with the exhaust channel, a retaining ring threaded to the upper end of the core rod to prevent the movable plug from falling off, the plug post slidingly connected to the exhaust channel through the retaining ring, a top cover connected to the upper end of the plug post, and an outwardly protruding annular baffle at the lower end, with a tension spring between the annular baffle and the retaining ring.

[0011] As a further improvement of this utility model, the upper part of the lifting and pressing rod has multiple grooves distributed circumferentially, and a paddle is rotatably connected in each groove. The lower part of the paddle is provided with an outwardly convex arc surface, and the inner wall of the groove is provided with an elastic component for pushing the paddle out.

[0012] As a further improvement of this utility model, the upper part of the lifting and pressing rod passes through the base of the cover and is threadedly connected to a sealing cover.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] (1) By setting up a lifting extrusion rod that can move up and down, the height of the extrusion head can be adjusted without removing the cover so that it can better fit with the water surface, reducing the risk of water sample oxidation during transportation; the plug head and the lifting extrusion rod are connected and sealed in the slot, improving the sealing performance and effectively reducing water sample oxidation and detection deviation.

[0015] (2) By integrating the sealing component into the lifting extrusion rod, this utility model can ensure the sealing performance and prevent loss. The lifting extrusion rod cooperates with the sealing head through the slot and is equipped with a sealing gasket to avoid leakage during transportation.

[0016] (3) This utility model has an automatically unfolding paddle above the lifting and pressing rod, so no tools are needed for adjustment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the cover structure in an embodiment of the present utility model (the sealing cover is omitted).

[0019] Figure 3 This is a schematic diagram of the sealing component structure in an embodiment of the present invention (tension spring omitted).

[0020] Figure 4 This is a cross-sectional view of the cover in an embodiment of the present utility model (the sealing cover is omitted).

[0021] Figure 5 for Figure 4 Enlarged view of a portion of node A in the middle;

[0022] Figure 6 for Figure 4 Enlarged view of a portion of node B.

[0023] In the diagram, 1. Bottle body; 2. Cap base; 2-1. Guide sleeve; 3. Lifting extrusion rod; 3-1. Extrusion head; 3-2. Slot; 3-3. Paddle; 4. Sealing assembly; 4-1. Movable plug; 4-1-1. Plug; 4-1-2. T-shaped hole; 4-1-3. Retaining ring; 4-2. Core rod; 4-2-1. Exhaust channel; 4-2-2. Sealing gasket; 4-2-3. Sealing head; 5. Sealing cap. Detailed Implementation

[0024] The technical solution and effects of this utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0025] like Figure 1 and Figure 2 As shown, a water sample transfer container includes a bottle body 1 and a cap, the cap including a cap base 2. The cap is threadedly connected to the bottle mouth of the bottle body 1 via the cap base 2. Figure 4 As shown, the cap base 2 is provided with a guide sleeve 2-1, and a lifting extrusion rod 3 is internally threaded onto the guide sleeve 2-1. The lower end of the lifting extrusion rod 3 extends into the interior of the bottle body 1 and is fixedly fitted with a flexible extrusion head 3-1. The bottom of the extrusion head 3-1 is arc-shaped to conform to the liquid surface and reduce shaking during transportation. The lifting extrusion rod 3 can move up and down along the guide sleeve 2-1, and the upper end of the lifting extrusion rod 3 passes through the cap base 2 and is threaded onto a sealing cap 5.

[0026] Combination Figure 2 and Figure 4 As shown, the upper circumferential part of the lifting extrusion rod 3 has multiple grooves, and a lever 3-3 is rotatably connected in each groove. The lower part of the lever 3-3 has an outwardly convex arc surface, and the inner wall of the groove is provided with an elastic component for pushing the lever 3-3 out. The lifting extrusion rod 3 has a vent hole that passes through the lifting extrusion rod 3 and the extrusion head 3-1, and a sealing component 4 is connected in the vent hole.

[0027] Combination Figure 3 and Figure 6 As shown, the sealing assembly 4 includes a core rod 4-2. The core rod 4-2 is a hollow rod-shaped structure with an inverted Y-shaped venting channel 4-2-1 inside. A sealing head 4-2-3 is fixed to the bottom of the core rod 4-2. The bottom opening of the channel 4-2-1 is located above the sealing head 4-2-3 and branches obliquely through both outer walls of the core rod 4-2. Combined with... Figure 4 and Figure 6 As shown, the lifting and pressing rod 3 has an annular groove 3-2 in the middle, the sealing head 4-2-3 is engaged with the groove 3-2, and a sealing gasket 4-2-2 is provided between the sealing head 4-2-3 and the groove 3-2.

[0028] In a preferred embodiment of this utility model, the core rod 4-2 is threadedly connected to the upper part of the vent hole. After the water sample is filled, the cap base 2 is connected to the bottle mouth. The lever 3-3 on the upper part of the lifting and squeezing rod 3 is rotated, causing the lifting and squeezing rod 3 to move down along the guide sleeve 2-1 of the cap base 2. The flexible squeezing head 3-1 at its bottom end descends until it is in contact with the liquid surface. The water sample is pressurized and gradually rises through the vent hole of the lifting and squeezing rod 3. During this process, the gas above the liquid surface is compressed into the exhaust channel 4-2-1 of the core rod 4-2. After the water sample enters the slot 3-2, the core rod 4-2 is rotated so that the sealing head 4-2-3 is engaged with the slot 3-2, purging the air above the liquid surface. Finally, the sealing cap 5 is put on.

[0029] As a preferred embodiment of this utility model, combined with Figure 2 and Figure 5 As shown, the core rod 4-2 is slidably connected within the vent hole. The sealing assembly 4 also includes a movable plug 4-1 slidably connected to the upper part of the core rod 4-2 for controlling gas discharge. The movable plug 4-1 includes a plug post 4-1-1 with a T-shaped hole 4-1-2 at its bottom, which communicates with the exhaust channel 4-2-1. A retaining ring 4-1-3 is threadedly connected to the upper end of the core rod 4-2 to prevent the movable plug 4-1 from falling off. The plug post 4-1-1 passes through the retaining ring 4-1-3 and is slidably connected within the exhaust channel 4-2-1. A top cover is connected to the upper end of the plug post 4-1-1, and an outwardly protruding annular baffle is provided at the lower end. A tension spring is provided between the annular baffle and the retaining ring 4-1-3. When the gas pressure in the exhaust channel 4-2-1 increases, it pushes the movable plug 4-1 upward against the spring pressure. As the gas is discharged, the pressure gradually decreases, and the movable plug 4-1 moves downward under the action of the spring to achieve a seal.

[0030] After the water sample is loaded, the lifting and squeezing rod 3 is rotated, and the water sample is gradually pushed up through the vent hole of the lifting and squeezing rod 3. During this process, the gas above the liquid surface is compressed into the exhaust channel 4-2-1 of the core rod 4-2, pushing the movable plug 4-1 at the top of the exhaust channel 4-2-1 and driving the core rod 4-2 upward until the water sample fills the slot 3-2. After the air is expelled, the core rod 4-2 is rotated so that the sealing head 4-2-3 at its bottom is inserted into the slot 3-2, so that the bifurcated opening of the inverted Y-shaped exhaust channel 4-2-1 is above the sealing head 4-2-3, ensuring that the exhaust channel 4-2-1 is isolated from the liquid surface after sealing, and preventing leakage caused by transportation bumps.

[0031] During transportation, the flexible extrusion head 3-1 continuously adheres to the liquid surface, suppressing liquid sloshing and effectively reducing the contact between the water sample and oxygen, thus lowering the risk of microbial oxidation.

[0032] It should be noted that, as will be apparent to those skilled in the art, this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. The scope of this utility model is defined by the claims rather than the foregoing description.

Claims

1. A water sample transfer container, comprising a bottle body (1) and a cap, characterized in that: The cap includes a cap base (2), and the cap is threadedly connected to the bottle mouth of the bottle body (1) through the cap base (2). The cap base (2) is provided with a guide sleeve (2-1). The guide sleeve (2-1) is internally threaded with a lifting extrusion rod (3) that penetrates the cap base (2) and can move up and down. The lower end of the lifting extrusion rod (3) is fitted with a flexible extrusion head (3-1). The bottom of the extrusion head (3-1) is an arc-shaped surface. The lifting extrusion rod (3) is provided with a through vent hole. The vent hole is internally threaded with a sealing component (4) with an inverted Y-shaped exhaust channel (4-2-1).

2. The water sample transfer container as described in claim 1, characterized in that: The lifting and pressing rod (3) has an annular groove (3-2) in the middle. The sealing assembly (4) includes a core rod (4-2). The core rod (4-2) is a hollow rod structure. A sealing head (4-2-3) is fixed at the bottom of the core rod (4-2). The sealing head (4-2-3) is engaged with the groove (3-2). A sealing gasket (4-2-2) is provided between the sealing head (4-2-3) and the groove (3-2).

3. The water sample transfer container as described in claim 2, characterized in that: The core rod (4-2) is threadedly connected to the vent hole.

4. The water sample transfer container as described in claim 2, characterized in that: The core rod (4-2) is slidably connected to the vent hole, and the upper part of the core rod (4-2) is connected to a movable plug (4-1) for controlling the gas discharge.

5. The water sample transfer container as described in claim 4, characterized in that: The movable plug (4-1) includes a plug (4-1-1) with a T-shaped hole (4-1-2) at the bottom. The T-shaped hole (4-1-2) is connected to the exhaust channel (4-2-1). The upper end of the core rod (4-2) is threaded with a retaining ring (4-1-3) to prevent the movable plug (4-1) from falling off. The plug (4-1-1) passes through the retaining ring (4-1-3) and is slidably connected in the exhaust channel (4-2-1). The upper end of the plug (4-1-1) is connected with a top cover, and the lower end is provided with an outwardly protruding annular baffle. A tension spring is provided between the annular baffle and the retaining ring (4-1-3).

6. The water sample transfer container as described in any one of claims 2 to 5, characterized in that: The upper part of the lifting and pressing rod (3) has multiple grooves distributed in the circumferential direction. Each groove is rotatably connected to a paddle (3-3). The paddle (3-3) has an outwardly convex arc surface at the bottom. The inner wall of the groove is provided with an elastic component for pushing the paddle (3-3) out.

7. The water sample transfer container as described in claim 6, characterized in that: The upper part of the lifting and pressing rod (3) passes through the cover base (2) and is threaded with a sealing cover (5).

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