Collecting device with liquid fed from bottom

Abstract

A bottom liquid inlet collecting device comprises a cylindrical tank body, an upper sealing structure and a lower sealing structure, a limiting block is arranged on the side wall of the bottom of the tank body and comprises a sliding column and a limiting end, the lower sealing structure comprises a lower sealing plate, an iron ring piece and a sealing piece, a plurality of sliding grooves are formed in the lower sealing plate, the sliding grooves are in sliding fit with the sliding column, and the limiting end is connected with the iron ring piece. The lower sealing plate can movably slide above the liquid inlet, an iron ring piece is attached to the interior of an annular groove of a protruding part of the lower sealing plate, a sealing piece is attached to the surface of the protruding part, a magnetic ring is arranged on the inner side of the liquid inlet, and the lower sealing structure enables the sealing piece to be attached to the surface of the end of the liquid inlet through magnetic attraction of the corresponding magnetic ring to the iron ring piece. To-be-sampled liquid is extruded by pressure, so that the lower sealing structure ascends to open the liquid inlet, and the liquid enters the tank body through the liquid inlet. According to the utility model, the liquid sampling is convenient, the sampling can be realized by controlling the upper sealing structure, and the sampled liquid sample cannot be polluted when being taken out.

Description

Technical Field

[0001] The utility model relates to the field of liquid sampling in the field of environmental protection, in particular to a bottom-inlet liquid collection device. Background Art

[0002] In the process of liquid sampling, a spoon or a barrel-shaped container is usually used to extend a rope or a rod to penetrate into the sampling equipment such as various solvent tanks, solvent pools, etc. However, no matter whether it is a spoon or a barrel-shaped container, the bottom is usually sealed. In the process of the spoon or the barrel-shaped container penetrating into the solvent tank or the solvent pool, due to the influence of the liquid pressure, it is difficult for the spoon or the barrel-shaped container to ensure that it penetrates in an upright manner, so that the spoon or the barrel-shaped container needs to be sampled with a certain tilt in the opening during the sampling process. In the process of sampling with the tilted opening, it is easy for impurities floating on the surface of the solvent tank or the solvent pool to enter the liquid sample, which directly affects the authenticity and accuracy of the experiment. Moreover, the sampling of liquid samples is difficult to control when the opening is tilted, especially in the solvent tank or the solvent pool with a deep liquid surface and dim light. Sampling with existing samplers is particularly difficult. Summary of the invention

[0003] The utility model aims to provide a collection device with bottom liquid inlet, so as to achieve the goal of convenient sampling, easy sampling control, safe and reliable collection device.

[0004] In view of this, the technical solution provided by the utility model is: a bottom liquid collection device, comprising a cylindrical tank body, an upper sealing structure, and a lower sealing structure. The bottom of the tank body is provided with a penetrating liquid inlet, and the inner side of the upper opening of the tank body is provided with an inner step. The upper sealing structure is rotatably arranged between the inner steps, and the lower sealing structure is movably arranged above the liquid inlet. A plurality of limit blocks surrounding the edge of the liquid inlet are provided on the side wall of the bottom of the tank body, and the limit blocks include a sliding column and a limit end arranged at the end of the sliding column. The lower sealing structure includes a lower sealing plate, an iron ring sheet and a sealing sheet. A plurality of sliding grooves corresponding to the sliding columns are opened on the lower sealing plate. By means of the sliding grooves slidingly cooperating with the sliding columns, the lower sealing plate can movably slide on the liquid inlet. Above, with the limiting end as the upper end limit, a circular protrusion is provided at the bottom of the lower sealing plate, and a ring groove is opened on the bottom surface of the protrusion. The iron ring piece is fitted and installed in the ring groove, and the sealing piece is fitted to the surface of the protrusion. The iron ring piece is sealed in the ring groove. The liquid inlet is provided with a magnetic ring corresponding to the iron ring piece on its inner side, and the surface of the magnetic ring is flush with the end surface of the liquid inlet. The lower sealing structure adsorbs the iron ring piece by the corresponding magnetic ring, so that the sealing piece of the lower sealing structure is fitted on the end surface of the liquid inlet to form a seal. When the liquid is inlet, the liquid to be sampled is squeezed by the pressure of the external liquid, so that the lower sealing structure overcomes the magnetic adsorption and gravity sliding and floats up to open the liquid inlet, and the liquid enters the tank body through the liquid inlet.

[0005] Furthermore, the upper sealing structure includes a first sealing plate, a second sealing plate and a connecting rod, the first sealing plate is provided with a first flip axis, the second sealing plate is provided with a second flip axis, holes are opened inside the first flip axis and the second flip axis, and the connecting rod passes through the hole to form the first sealing plate and the second sealing plate into an upper sealing structure that can be flipped separately.

[0006] Furthermore, an annular retaining ring is provided at the bottom of the inner step for rotationally limiting the upper sealing structure. The first sealing plate and the second sealing plate are limited by the rotation of the annular retaining ring, so that the first sealing plate and the second sealing plate are cushioned on the annular retaining ring, and the first sealing plate and the second sealing plate form a seal against the upper opening of the tank body.

[0007] Furthermore, a lifting rod is provided on the upper part of the tank body, and a lifting rod column is provided in the middle of the lifting rod. The interior of the lifting rod column is hollow, and a lifting rope is provided on the lifting rod column. Through the lifting rope, the collection device can be more conveniently placed in a solvent tank or solvent pool with a deeper liquid level and darker light for sampling.

[0008] Furthermore, the first sealing plate and the second sealing plate are provided with drawstring buckles, and the drawstring buckles are connected with drawstrings. The first sealing plate and the second sealing plate are flipped over by pulling. When sampling is required, the drawstring is used to control the opening of the upper sealing structure, so that the internal pressure of the tank body is reduced, which is beneficial to the pressure of the liquid at the bottom of the tank body squeezing the lower sealing structure, so that the lower sealing structure rises quickly to open the liquid inlet, thereby realizing sampling of the tank body. After the sampling is completed, the upper sealing structure is closed by the drawstring, so that the lower sealing structure slides and falls on the end face of the liquid inlet under the action of gravity to form a seal for the liquid inlet.

[0009] Furthermore, a drain port is provided on the lower side wall of the tank body, and a valve or a hose with a clamp is usually connected to the drain port, and the liquid sample in the tank body can be released by opening the valve or opening the clamp of the hose.

[0010] Furthermore, the number of the limit blocks is 3.

[0011] Furthermore, a plurality of supporting legs are provided at the bottom of the tank body.

[0012] The utility model can directly penetrate the collection device into the interior of the sampled liquid, and flip open the upper sealing structure by pulling the rope, so that the liquid at the bottom of the collection device squeezes the lower sealing structure under the action of the pressure difference, so that the lower sealing structure slides up to open the liquid inlet to realize liquid collection and liquid inlet. When the sampling is completed, the upper sealing structure is closed, and the lower sealing structure slides to the end face of the liquid inlet under the action of gravity. The lower sealing structure is magnetically attracted to the end face of the liquid inlet, thereby ensuring the sealing and leakage of the lower sealing structure. After the upper sealing structure and the lower sealing structure are closed at the same time, the liquid sample in the tank body will not be mixed into the tank body again in the process of being removed from the liquid interior, thereby improving the accuracy of the liquid sample in the tank body, especially when the tank body passes through the liquid surface from the liquid interior, due to the internal sealing of the tank body, various impurities floating on the liquid surface will not be brought into the sample.

[0013] Therefore, the utility model is convenient for liquid sampling, and the collection device can be used to sample at different liquid level heights by controlling the upper sealing structure, and after sampling, the liquid sample will not be contaminated during the taking-out process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is one of the schematic diagrams of the three-dimensional structure of the collection device.

[0015] Figure 2 This is the second schematic diagram of the three-dimensional structure of the collection device.

[0016] Figure 3 This is a schematic diagram of the internal structure of the collection device.

[0017] Figure 4 It is a schematic diagram of the internal structure of the lower sealing structure and liquid inlet of the collection device.

[0018] Figure 5 This is one of the three-dimensional structural diagrams of the tank.

[0019] Figure 6 This is the second schematic diagram of the three-dimensional structure of the tank.

[0020] Figure 7 It is a schematic diagram of the three-dimensional structure of the limit block.

[0021] Figure 8 It is a schematic diagram of the three-dimensional structure of the lower sealing structure.

[0022] Fig. 9 This is a schematic diagram of the exploded structure of the lower sealing structure.

[0023] Fig.10 It is a schematic diagram of the three-dimensional structure of the upper sealing structure.

[0024] Fig.11 This is a schematic diagram of the exploded structure of the upper sealing structure.

[0025] Wherein: 1-tank body, 11-liquid inlet, 12-liquid discharge port, 13-magnetic ring, 14-support foot, 15-inner step, 16-retaining ring, 2-lower sealing structure, 21-lower sealing plate, 211-sliding groove, 212-protrusion, 213-ring groove, 22-iron ring sheet, 23-sealing sheet, 3-limiting block, 31-sliding column, 32-limiting end, 33-fixing hole, 4-upper sealing structure, 41-first sealing plate, 411-first turning axis, 412-notch, 42-second sealing plate, 421-second turning axis, 43-connecting rod, 44-pull rope buckle, 5-lifting rod, 51-lifting rod column, 6-lifting rope, 61-lifting rope section, 62-side groove, 7-pull rope. DETAILED DESCRIPTION

[0026] The following is a brief description of the implementation of the present utility model in conjunction with the accompanying drawings.

[0027] A bottom-inlet liquid collection device, refer to 1- Figure 2 , including a bottom-inlet liquid collection device, including a cylindrical tank body 1, an upper sealing structure 4, and a lower sealing structure 2. A lifting rod 5 is provided on the upper part of the tank body 1, and a lifting rod column 51 is provided in the middle of the lifting rod 5. The interior of the lifting rod column 51 is hollow, and a lifting rope 6 is provided on the lifting rod column 51. A penetrating liquid inlet 11 and a plurality of supporting legs 14 are provided at the bottom of the tank body 1. The plurality of supporting legs 14 are used to support the tank body 1 for easy placement. A discharge port 12 is opened on the lower side wall of the tank body 1. The discharge port 12 is usually connected to a valve or a hose with a clamp. By using the discharge port 12, the liquid sample inside the tank body 1 can be released by opening the valve or opening the clamp of the hose.

[0028] Reference Figure 3-Figure 6 The inner side of the upper opening of the tank body 1 is provided with an inner step 15, the upper sealing structure 4 is rotatably arranged between the inner steps 15, the lower sealing structure 2 is movably arranged above the liquid inlet 11, and a plurality of limit blocks 3 surrounding the edge of the liquid inlet 11 are arranged on the bottom side wall of the tank body 1, referring to Figure 7 The limit block 3 includes a sliding column 31 and a limit end 32 arranged at the end of the sliding column 31. Preferably, the number of the limit blocks 3 is 3, and the limit blocks 3 are evenly arranged in a circular row. The side wings extending on both sides of the limit block 3 are provided with fixing holes 33, and the fixing holes 33 are fixed on the bottom upper surface of the tank body 1 by screw locking. Figure 8 , Fig. 9 The lower sealing structure 2 includes a lower sealing plate 21, an iron ring sheet 22 and a sealing sheet 23. A plurality of sliding grooves 211 corresponding to the sliding column 31 are provided on the lower sealing plate 21. The sliding grooves 211 are slidably matched with the sliding column 31. The lower sealing plate 21 can slide movably above the liquid inlet 11 and is limited at the upper end by the limiting end 32. A circular protrusion 212 is provided at the bottom of the lower sealing plate 21. A ring groove 213 is provided on the bottom surface of the protrusion 212. The iron ring sheet 22 is fitted and installed in the ring groove 213. The sealing sheet 23 is fitted on the surface of the protrusion 212. The iron ring sheet 22 is sealed in the ring groove 213. The liquid inlet 11 is provided with a magnetic ring 13 corresponding to the iron ring sheet 22 on its inner side. The surface of the magnetic ring 13 is flush with the end surface of the liquid inlet 11. The lower sealing structure 2 is provided with a magnetic ring 13 corresponding to the iron ring sheet 22. The surface of the magnetic ring 13 is flush with the end surface of the liquid inlet 11. The ring 13 magnetically adsorbs the iron ring sheet 22, so that the sealing sheet 23 of the lower sealing structure 2 fits on the end surface of the liquid inlet 11 to form a seal. When liquid is introduced, the liquid to be sampled is squeezed by the pressure of the external liquid, so that the lower sealing structure 2 overcomes the magnetic adsorption and gravity sliding and floats up to open the liquid inlet 11, and the liquid enters the tank body 1 through the liquid inlet 11, wherein the sealing sheet 23 is preferably a corrosion-resistant silicone sheet, and in order to avoid the iron ring sheet 22 of the fitted lower sealing structure 2 being too firmly adsorbed under the magnetic adsorption of the magnetic ring 13 and affecting the liquid sample introduction, the sealing sheet 23 partially weakens its magnetic adsorption effect, so that the magnetic action between the lower sealing structure 2 and the liquid inlet 11 can not only meet the adsorption sealing energy, but also prevent excessive opening resistance from being caused when taking liquid samples.

[0029] Reference Fig.10 , Fig.11The upper sealing structure 4 includes a first sealing plate 41, a second sealing plate 42 and a connecting rod 43. The first sealing plate 41 is provided with a first flip axis 411, and the second sealing plate 42 is provided with a second flip axis 421. Holes are provided inside the first flip axis 411 and the second flip axis 421, and the connecting rod 43 passes through the holes to form the first sealing plate 41 and the second sealing plate 42 to form an upper sealing structure 4 that can be flipped separately. In order to better realize the connection and installation of the first sealing plate 41 and the second sealing plate 42, the first flip axis 411 of the first sealing plate 41 is provided with a A pair of first flip shafts 411 are provided, with a notch 412 between them, and the second flip shaft 421 of the second sealing plate 42 is installed and connected corresponding to the notch 412. The upper sealing structure 4 is rotatably installed between the inner steps 15 from both sides through the first flip shaft 411 of the first sealing plate 41. The connecting rod 43 is rotatably connected relative to the first sealing plate 41 and the second sealing plate 42. Then, the first sealing plate 41 and the second sealing plate 42 can both flip, wherein the bottom of the inner step 15 is provided with an annular retaining ring 16 for limiting the rotation of the upper sealing structure 4. The first sealing plate 41 and the second sealing plate 42 are limited by the rotation of the annular retaining ring 16, so that the first sealing plate 41 and the second sealing plate 42 are cushioned on the annular retaining ring 16, and the first sealing plate 41 and the second sealing plate 42 form a seal on the upper opening of the tank body 1. In order to further realize the flipping control of the upper sealing structure 4, the first sealing plate 41 and the second sealing plate 42 are provided with a drawstring buckle 44, and the drawstring buckle 44 is connected with a drawstring 7. The drawstring 7 passes through the side groove 62 on the drawstring section 61 and passes through the drawstring column 51. The drawstring 7 is realized by pulling The first sealing plate 41 and the second sealing plate 42 are used to flip open the upper opening of the tank body 1. When sampling is required, the pull rope 7 is used to control the opening of the upper sealing structure 4, so that the internal pressure of the tank body 1 is reduced, which is beneficial for the pressure of the liquid at the bottom of the tank body 1 to squeeze the lower sealing structure 2, so that the lower sealing structure 2 rises quickly to open the liquid inlet 11, and then the tank body 1 is sampled. After the sampling is completed, the upper sealing structure 4 is closed by the pull rope 7, so that the lower sealing structure 2 slides and falls on the end face of the liquid inlet 11 under the action of gravity to form a seal for the liquid inlet 11.

[0030] The above embodiments only express the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A bottom-inlet liquid collection device, comprising a cylindrical tank body, an upper sealing structure, and a lower sealing structure, wherein a liquid inlet is provided through the bottom of the tank body, an inner step is provided inside the upper opening of the tank body, the upper sealing structure is rotatably arranged between the inner steps, and the lower sealing structure is movably arranged above the liquid inlet, characterized in that: The bottom side wall of the tank body is provided with a plurality of limit blocks surrounding the edge of the liquid inlet, the limit blocks include a sliding column and a limit end arranged at the end of the sliding column, the lower sealing structure includes a lower sealing plate, an iron ring sheet and a sealing sheet, the lower sealing plate is provided with a plurality of sliding grooves corresponding to the sliding column, and the lower sealing plate can slide movably above the liquid inlet with the limit end as the upper end limit by means of the sliding grooves and the sliding column. The bottom of the lower sealing plate is provided with a circular protrusion, the bottom surface of the protrusion is provided with a ring groove, and the iron ring sheet is fitted and installed on the In the annular groove, the sealing sheet is attached to the surface of the protrusion, the iron ring sheet is sealed in the annular groove, and the liquid inlet is provided with a magnetic ring corresponding to the iron ring sheet on its inner side, the surface of the magnetic ring is flush with the end surface of the liquid inlet, and the lower sealing structure adsorbs the iron ring sheet through the magnetic force of the corresponding magnetic ring, so that the sealing sheet of the lower sealing structure is attached to the end surface of the liquid inlet to form a seal. When the liquid is inlet, the liquid to be sampled is squeezed by the pressure of the external liquid, so that the lower sealing structure overcomes the magnetic adsorption and gravity sliding and floats up to open the liquid inlet, and the liquid enters the tank body through the liquid inlet.

2. A bottom-inlet liquid collection device according to claim 1, characterized in that: The upper sealing structure includes a first sealing plate, a second sealing plate and a connecting rod. The first sealing plate is provided with a first flip axis, and the second sealing plate is provided with a second flip axis. Holes are opened inside the first flip axis and the second flip axis, and the connecting rod passes through the holes to form the first sealing plate and the second sealing plate into an upper sealing structure that can be flipped separately.

3. A bottom-inlet liquid collection device according to claim 1, characterized in that: An annular retaining ring for limiting the rotation of the upper sealing structure is provided at the bottom of the inner step.

4. A bottom-inlet liquid collection device according to claim 1, characterized in that: A lifting rod is arranged on the upper part of the tank body, a lifting rod column is arranged in the middle of the lifting rod, the interior of the lifting rod column is hollow, and a lifting rope is arranged on the lifting rod column.

5. A bottom-inlet liquid collection device according to claim 2, characterized in that: The first sealing plate and the second sealing plate are provided with drawstring buckles, and the drawstring buckles are connected with drawstrings. The first sealing plate and the second sealing plate can be turned over by pulling.

6. A bottom-inlet liquid collection device according to claim 1, characterized in that: A liquid discharge port is provided on the lower side wall of the tank body.

7. A bottom-inlet liquid collection device according to claim 1, characterized in that: The number of the limit blocks is 3.

8. A bottom-inlet liquid collection device according to claim 1, characterized in that: A plurality of supporting feet are arranged at the bottom of the tank body.

Images