Liquid sampling device

Abstract

The utility model discloses a liquid sampling device, belongs to the technical field of detection, aims to prevent liquid from spilling out in the sampling process and avoid environmental pollution, and adopts the technical scheme that the device comprises a barrel body, a liquid outlet pipe, a water pressure opening and closing sealing cover, a lifting ring and a lifting rope, a liquid inlet is formed in the top of the barrel body, and a liquid outlet is formed in the side wall of the barrel body; the water pressure opening and closing sealing cover is installed on the liquid inlet, the lower end of the liquid outlet pipe is connected with the liquid outlet, a sealing structure is arranged on the liquid outlet pipe, the hanging ring is fixedly arranged on the top of the barrel body, and the hanging rope is connected with the hanging ring. According to the utility model, the barrel body is used for sampling liquid, after the barrel body is put into the liquid, the water pressure opening and closing sealing cover is automatically opened under the pressure action of the liquid, so that the liquid enters the barrel body, and after the sampling is finished, the water pressure opening and closing sealing cover is automatically closed, so that the liquid in the barrel body is prevented from spilling out in the movement or transportation process of the barrel body, and the environmental pollution is avoided.

Description

Technical Field

[0001] The utility model relates to a liquid sampling device used when detecting components of liquid, belonging to the technical field of detection. Background Art

[0002] Liquid sampling devices are required for component testing of liquids. For example, in vanadium chemical production, wastewater containing vanadium and chromium must be sampled frequently for testing, followed by vanadium and chromium removal treatment or flocculation testing. Traditionally, this sampling process uses a spoon. However, this method can easily cause spillage due to operator arm shaking, resulting in environmental pollution. Therefore, improvements are necessary. Utility Model Content

[0003] The purpose of the present invention is to provide a liquid sampling device to address the drawbacks of the prior art, so as to prevent the liquid from spilling during the sampling process and thus avoid environmental pollution.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A liquid sampling device includes a barrel body, a liquid outlet pipe, a water pressure opening and closing sealing cover, a hanging ring and a hanging rope. The top of the barrel body is provided with a liquid inlet, and the side wall is provided with a liquid outlet. The water pressure opening and closing sealing cover is installed on the liquid inlet. The lower end of the liquid outlet pipe is connected to the liquid outlet. A sealing structure is provided on the liquid outlet pipe. The hanging ring is fixed on the top of the barrel body, and the hanging rope is connected to the hanging ring.

[0006] The above-mentioned liquid sampling device, the water pressure opening and closing sealing cover includes a limiting ring, a sealing plate and an elastic structure; the outer wall surface of the limiting ring is sealed with the inner wall surface of the barrel body; the sealing plate is located at the lower part of the limiting ring, and the elastic structure is arranged between the limiting ring and the sealing plate. The elastic force of the elastic structure causes the sealing plate to be attached to the lower surface of the limiting ring, thereby closing the liquid inlet.

[0007] The above-mentioned liquid sampling device has at least two sealing plates, and a connecting part is provided inside the limiting ring. The connecting part includes at least two cross arms arranged along the radial direction of the limiting ring, dividing the liquid inlet into two semicircular or multiple fan-shaped inlets. Each sealing plate corresponds to one of the inlets and is rotatably connected to the limiting ring or the connecting part through a rotating shaft. Each sealing plate is provided with an elastic structure. The elastic force of the elastic structure causes the sealing plate to stick to the lower surface of the limiting ring to close the corresponding inlet. A sealing gasket is provided on the upper surface of the sealing plate.

[0008] In the above-mentioned liquid sampling device, the elastic structure is a torsion spring, which is sleeved on the rotating shaft. One end of the torsion spring is fixedly connected to the sealing plate, and the other end is fixedly connected to the limiting ring or the inner wall of the barrel.

[0009] The above-mentioned liquid sampling device has a connecting plate across the top of the barrel body, and two hanging rings are provided, which are respectively fixed at the two ends of the connecting plate; the two ends of the hanging rope are respectively connected to the two hanging rings, or the hanging rope is passed through the two hanging rings and the two ends of the hanging rope are tied together.

[0010] The above-mentioned liquid sampling device is provided with an auxiliary rope on the hanging rope, one end of the auxiliary rope is connected to the hanging rope, and the other end is connected to the middle part of the connecting plate. When the hanging rope is tightened by the hanging ring, the auxiliary rope is in a relaxed state.

[0011] In the above-mentioned liquid sampling device, a counterweight portion is provided at the bottom of the barrel.

[0012] The above-mentioned liquid sampling device is provided with a sealing hole on the side wall of the liquid outlet pipe, which intersects with the central hole of the liquid outlet pipe. The sealing hole is a blind hole and its diameter is larger than the inner diameter of the liquid outlet pipe. The sealing structure is a sealing plug with one end passing through the sealing hole.

[0013] In the above-mentioned liquid sampling device, an observation port is provided on the side wall of the barrel body along the axial direction of the barrel body, and the observation port is closed by a transparent scale plate.

[0014] In the above-mentioned liquid sampling device, a hand-held portion is provided on the outer wall of the barrel body, and the hand-held portion and the liquid outlet pipe are respectively located on both sides of the barrel body.

[0015] The utility model utilizes a barrel body to sample liquid. After the barrel body is placed in the liquid, the water pressure opening and closing sealing cover automatically opens under the pressure of the liquid, allowing the liquid to enter the barrel body. After the sampling is completed, the water pressure opening and closing sealing cover automatically closes, preventing the liquid inside the barrel body from spilling out during movement or transportation, thereby avoiding environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0020] Figure 4 Schematic diagram of the sealing plate;

[0021] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0022] Figure 6 It is a structural diagram of the connecting part;

[0023] Figure 7 for Figure 6 A partial enlarged view of point C in the middle.

[0024] The numbers in the figure are as follows: 1. Barrel body; 11. Liquid outlet; 12. Liquid inlet; 13. Observation port; 14. Transparent scale plate; 15. Handle; 2. Liquid outlet pipe; 21. High end; 22. Low end; 23. Sealing plug; 24. Sealing hole; 3. Limiting ring; 31. Support block; 4. Closing plate; 41. Rotating shaft; 5. Connecting part; 6. Lifting ring; 7. Lifting rope; 71. Auxiliary rope; 8. Connecting plate. DETAILED DESCRIPTION

[0025] The utility model provides a liquid sampling device, which aims to solve the technical problem that in a traditional sampling method, the sampled liquid may spill out of the sampling spoon and thus pollute the environment.

[0026] See also Figures 1 to 7 The utility model includes a barrel body 1, a liquid outlet pipe 2, a limiting ring 3, a sealing plate 4 and an elastic structure; a liquid outlet 11 is provided on the side wall of the barrel body, and a liquid inlet 12 is provided on the top; the liquid outlet pipe 2 has a high end 21 and a low end 22 suitable for communicating with the liquid outlet 11; a sealing structure suitable for blocking the liquid outlet pipe 2 is provided on the liquid outlet pipe 2; the limiting ring 3 is provided at the liquid inlet 12 of the barrel body 1, and the outer wall surface of the limiting ring 3 is sealed with the inner wall surface of the barrel body 1; there are at least two sealing plates 4, and the upper surface of each sealing plate 4 is suitable for contacting the lower surface of the limiting ring 3 contact, and each sealing plate 4 has the freedom to flip over in the barrel body 1; all the sealing plates 4 are pieced together to form a sealing portion suitable for closing the liquid inlet 12; an elastic structure is provided at the rotational connection between each sealing plate 4 and the limiting ring 3, and the elastic structure is suitable for connecting the barrel body 1 and the sealing plate 4; wherein, under the elastic force of the elastic structure, the sealing plate 4 contacts the limiting ring 3 to close the liquid inlet 12; when the barrel body 1 is located in the liquid, the sealing structure blocks the liquid outlet pipe 2, and the sealing plate 4 is separated from the limiting ring 3 under the action of water pressure to open the liquid inlet 12.

[0027] When it is necessary to sample the liquid, the barrel body 1 is placed in the liquid, and the sealing plate 4 on the barrel body 1 flips under the pressure of the liquid and opens the liquid inlet 12, so that the liquid can enter the barrel body 1; after the sampling is completed, the barrel body 1 is fished out of the liquid, and the water pressure on the sealing plate 4 disappears at this time. The sealing plate 4 closes the liquid inlet 12 under the elastic force of the elastic structure, thereby reducing the leakage of waste liquid. During sampling, the liquid outlet pipe 2 is blocked by the sealing structure, so during the process of fishing out the barrel body 1, the waste liquid in the barrel body 1 will not flow out of the liquid outlet pipe 2. The upper surface of the sealing plate 4 contacts the lower surface of the limit ring 3, so that the sealing plate 4 can seal the liquid inlet 12 of the barrel body 1 to prevent the liquid from spilling out of the barrel body 1, thereby reducing the pollution of the liquid to the environment.

[0028] like Figures 1 to 7 As shown, a connecting portion 5 is provided inside the limiting ring 3. The connecting portion 5 includes at least two transverse arms arranged radially along the limiting ring 3. The transverse arms divide the liquid inlet 12 into two semicircular or multiple fan-shaped inlets, and each sealing plate 4 corresponds to one of the inlets. The sealing plate 4 is a semicircular or fan-shaped structure. When the connecting portion 5 includes two transverse arms, the two transverse arms are connected into a straight arm, dividing the liquid inlet 12 into two semicircular inlets. When the connecting portion 5 includes three transverse arms, the three transverse arms divide the liquid inlet 12 into three 120° fan-shaped inlets. When the connecting portion 5 includes four transverse arms, the four transverse arms divide the liquid inlet 12 into four 90° fan-shaped inlets. A rotating shaft 41 extending along its tangential direction is fixed on the arc-shaped edge of each sealing plate 4. The rotating shaft 41 rotates with the barrel body 1 or the limiting ring 3.

[0029] The elastic structure is a torsion spring (not shown), which is mounted on a rotating shaft 41. One end of the torsion spring is fixedly connected to the sealing plate 4, and the other end is fixedly connected to the retaining ring 3 or the inner wall of the barrel 1. The torsion force of the torsion spring can make the upper surface of the sealing plate 4 contact the lower surface of the retaining ring 3, thereby sealing the liquid inlet 12. After the barrel 1 is placed in liquid, the pressure of the liquid on the sealing plate 4 is greater than the torsion force of the torsion spring. Therefore, the liquid can push the sealing plate 4 open, allowing the liquid to enter the barrel 1.

[0030] When the rotating shaft 41 of the sealing plate 4 rotates with the limiting ring 3, the specific connection relationship is as follows: a support block 31 is fixedly provided on the lower surface of the limiting ring 3, and a through hole is provided on the support block 31 for plugging and cooperating with the rotating shaft 41; after the rotating shaft 41 is inserted into the through hole of the support block 31, the rotating shaft 41 can rotate around its own axis in the through hole of the support block 31.

[0031] In addition, when there are two sealing plates 4, both sealing plates 4 are semicircular structures; the connecting part 5 is a straight arm spanning the limiting ring 3, and the two sealing plates 4 are respectively located on both sides of the connecting part 5; at this time, the rotating shaft 41 of the sealing plate 4 can also be located at the position where the sealing plate 4 is connected to the connecting part 5.

[0032] A sealing gasket (not shown) is fixedly mounted on the upper surface of each sealing plate 4, adapted to abut against the lower surface of the retaining ring 3. With this arrangement, after sampling is completed, the sealing plate 4, under the action of the torsion spring, seals the liquid inlet 12 of the barrel 1. The sealing plate 4 abuts against the lower surface of the retaining ring 3 via the sealing gasket, thereby improving the sealing performance at the connection between the sealing plate 4 and the retaining ring 3 and thereby reducing liquid leakage from the connection between the sealing plate 4 and the retaining ring 3.

[0033] It should be noted that when multiple sealing plates 4 are assembled into a sealing portion, the contact between the sealing plate 4 and the connecting portion 5 is also sealed, so that the liquid leakage from the connection between the sealing plate 4 and the connecting portion 5 can be reduced during the transportation of the barrel body 1.

[0034] In addition, after the barrel 1 is removed from the liquid, although some liquid may remain on the outer wall of the barrel 1, the amount of waste liquid on the outer wall of the barrel 1 is relatively small, so the impact of the liquid remaining on the outer wall of the barrel 1 on the environment can be ignored. After the barrel 1 is removed from the liquid, the barrel 1 can be transported after the liquid remaining on the outer wall of the barrel 1 has dried.

[0035] The liquid sampling device further includes a hanging ring 6 and a hanging rope 7 . The hanging ring 6 is fixed on the top of the barrel 1 ; the hanging rope 7 is connected to the hanging ring 6 .

[0036] In some embodiments, the barrel body 1 is provided with a connecting plate 8 across the top thereof, and there are two lifting rings 6, which are respectively provided at both ends of the connecting plate 8; the two ends of the lifting rope 7 are respectively connected to the two lifting rings 6, or the lifting rope 7 is passed through the two lifting rings 6 and the two ends of the lifting rope 7 are tied together, so that the barrel body 1 can be kept in a vertical state when lifting the barrel body 1, reducing the skewness of the barrel body 1.

[0037] In some embodiments, an auxiliary rope 71 is fixed to the lifting rope 7, and the end of the auxiliary rope 71 facing away from the lifting rope 7 is fixed to the connecting plate 8; when the lifting rope 7 tightens the lifting ring 6, the auxiliary rope 71 is in a relaxed state. When the lifting ring 6 fails and separates from the barrel body 1, the auxiliary rope 71 can be tightened in time under the action of the gravity of the barrel body 1, thereby reducing the possibility of separation between the barrel body 1 and the lifting rope 7. It should be noted that the connection position of the auxiliary rope 71 and the connecting plate 8 is preferably in the middle of the connecting plate 8. In this way, even if the lifting ring 6 is separated from the barrel body 1, the barrel body 1 can be kept vertical by lifting it with the auxiliary rope 71.

[0038] In some embodiments, as Figures 1 to 7 As shown, a counterweight (not shown) is provided on the inner or outer wall of the bottom of the barrel 1. The counterweight is used to maintain the barrel 1 in an upright position when the barrel 1 is immersed in liquid. This embodiment uses the counterweight provided on the inner wall of the bottom of the barrel 1 as an example for illustration. The provision of the counterweight within the barrel 1 makes the bottom of the barrel 1 heavier; when the barrel 1 is placed in liquid, it prevents the barrel 1 from tilting or tipping, maintaining a vertical position and facilitating the storage of more liquid.

[0039] In some embodiments, as Figures 1 to 7 As shown, a sealing hole 24 is provided on the side wall of the liquid outlet pipe 2, intersecting with the central hole of the liquid outlet pipe 2. The sealing structure is a sealing plug 23 with one end inserted into the sealing hole 24. During sampling, the sealing plug 23 is inserted into the sealing hole 24 and contacts the inner wall of the liquid outlet pipe 2, thereby sealing the liquid outlet pipe 2. After sampling is completed, the sealing plug 23 can be partially removed from the sealing hole 24, and the liquid in the barrel body 1 can be poured into a designated container.

[0040] It should be noted that the blocking hole 24 is a blind hole; the diameter of the blocking hole 24 is larger than the inner diameter of the liquid outlet pipe 2 .

[0041] Alternatively, the sealing plug 23 can be placed at the upper end 21 of the liquid outlet pipe 2. However, compared to placing the sealing plug 23 at the upper end 21 of the liquid outlet pipe 2, placing the sealing plug 23 on the side wall of the liquid outlet pipe 2 provides greater stability and reduces the risk of the sealing plug 23 separating from the liquid outlet pipe 2. The sealing plug 23 can also be secured to the liquid outlet pipe 2 with a rope to reduce the risk of the sealing plug 23 being lost.

[0042] In some embodiments, as Figures 1 to 7 As shown, the side wall of the barrel body 1 is provided with an observation port 13 arranged along the axial direction of the barrel body 1, and a transparent scale plate 14 is fixedly installed in the observation port 13, and the transparent scale plate 14 closes the observation port 13. This arrangement facilitates observation of the sample volume in the barrel body 1 and can also ensure a more accurate amount of liquid when pouring waste liquid into a designated container.

[0043] In some embodiments, as Figures 1 to 7 As shown, a handle 15 is fixed on the outer wall of the barrel body 1, and the handle 15 and the liquid outlet pipe 2 are respectively located on both sides of the barrel body 1. Through the above arrangement, the operator can pour the liquid in the barrel body 1 from the liquid outlet pipe 2 into a designated container through the handle 15.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A liquid sampling device, characterized in that: The invention comprises a barrel body (1), a liquid outlet pipe (2), a water pressure opening and closing sealing cover, a lifting ring (6) and a lifting rope (7). The top of the barrel body (1) is provided with a liquid inlet (12), and the side wall is provided with a liquid outlet (11). The water pressure opening and closing sealing cover is installed on the liquid inlet (12). The lower end (22) of the liquid outlet pipe (2) is connected to the liquid outlet (11). A sealing structure is provided on the liquid outlet pipe (2). The lifting ring (6) is fixedly provided on the top of the barrel body (1), and the lifting rope (7) is connected to the lifting ring (6).

2. A liquid sampling device according to claim 1, characterized in that: The water pressure opening and closing sealing cover comprises a limiting ring (3), a sealing plate (4) and an elastic structure; the outer wall surface of the limiting ring (3) is sealed with the inner wall surface of the barrel body (1); the sealing plate (4) is located at the lower part of the limiting ring (3), and the elastic structure is arranged between the limiting ring (3) and the sealing plate (4); the elastic force of the elastic structure causes the sealing plate (4) to be pressed against the lower surface of the limiting ring (3), thereby closing the liquid inlet (12).

3. A liquid sampling device according to claim 2, characterized in that: At least two sealing plates (4) are provided, and a connecting portion (5) is provided inside the limiting ring (3). The connecting portion (5) includes at least two transverse arms arranged along the radial direction of the limiting ring (3), dividing the liquid inlet (12) into two semicircular or multiple fan-shaped inlets. Each sealing plate (4) corresponds to one of the inlets and is rotatably connected to the limiting ring (3) or the connecting portion (5) through a rotating shaft (41). Each sealing plate (4) is provided with an elastic structure. The elastic force of the elastic structure causes the sealing plate (4) to be pressed against the lower surface of the limiting ring (3) to close the corresponding inlet. A sealing gasket is provided on the upper surface of the sealing plate (4).

4. A liquid sampling device according to claim 3, characterized in that: The elastic structure is a torsion spring, which is sleeved on the rotating shaft (41), one end of the torsion spring is fixedly connected to the sealing plate (4), and the other end is fixedly connected to the limiting ring (3) or the inner wall surface of the barrel body (1).

5. A liquid sampling device according to any one of claims 1 to 4, characterized in that: The barrel body (1) is provided with a connecting plate (8) across the top thereof, and two lifting rings (6) are provided, which are respectively fixed at the two ends of the connecting plate (8); the two ends of the lifting rope (7) are respectively connected to the two lifting rings (6), or the lifting rope (7) is passed through the two lifting rings (6) and the two ends of the lifting rope (7) are tied together.

6. A liquid sampling device according to claim 5, characterized in that: An auxiliary rope (71) is provided on the lifting rope (7), one end of the auxiliary rope (71) is connected to the lifting rope (7), and the other end is connected to the middle of the connecting plate (8). When the lifting rope (7) tightens the lifting ring (6), the auxiliary rope (71) is in a relaxed state.

7. A liquid sampling device according to claim 6, characterized in that: A counterweight portion is provided at the bottom of the barrel body (1).

8. A liquid sampling device according to claim 7, characterized in that: A sealing hole (24) intersecting with the central hole of the liquid outlet pipe (2) is provided on the side wall of the liquid outlet pipe (2); the sealing hole (24) is a blind hole and has a diameter larger than the inner diameter of the liquid outlet pipe (2); the sealing structure is a sealing plug (23) with one end passing through the sealing hole (24).

9. A liquid sampling device according to claim 8, characterized in that: An observation port (13) is provided on the side wall of the barrel body (1) and is arranged along the axial direction of the barrel body (1). The observation port (13) is closed by a transparent scale plate (14).

10. The liquid sampling device according to claim 9, characterized in that: A hand-held portion (15) is provided on the outer wall of the barrel body (1), and the hand-held portion (15) and the liquid outlet pipe (2) are respectively located on two sides of the barrel body (1).

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