Quantitative filler for environmental monitoring sampling

Abstract

The utility model discloses a kind of quantitative fillers for environmental monitoring sampling, it is related to filler technical field, including by fill tube, top block, piston rod, piston component filler assembly, the outside of fill tube is provided with quantitative assembly, the quantitative assembly is used to limit for top block, piston rod, piston moves up, to realize quantitative liquid taking operation in this way;The quantitative assembly includes moving limiting unit, adjusting unit;The moving limiting unit is used to realize top block, piston rod, piston moves up height limit;The adjusting unit is used to realize the limiting height adjustment of moving limiting unit.The utility model can realize the accurate quantitative operation of filler assembly by setting quantitative assembly, not only simple adjustment operation, and overall structure can be conveniently assembled, split, in this way, can be disassembled and cleaned, disinfected, to facilitate repeated use.

Description

Technical Field

[0001] This utility model relates to the field of dispensing device technology, specifically a quantitative dispensing device for environmental monitoring sampling. Background Technology

[0002] Environmental monitoring sampling typically involves the collection of samples such as air, water, and soil. A dispenser is a device used to add reagents or samples. It is usually used in laboratory analysis or field sampling. For example, in the laboratory, a fixed volume of reagents (such as colorimetric reagents or standard solutions) is added for chemical analysis of water, soil, or air samples. When sampling gases, liquids, or solids, preservatives (such as acids or preservatives) are dispensed in quantitative amounts.

[0003] Syringes are a commonly used manual dispensing device. However, they suffer from the problem of inaccurate quantification and require extensive experience from the operator to control the amount dispensed per sample. Therefore, this paper proposes a quantitative dispensing device for environmental monitoring sampling. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative dispensing device for environmental monitoring sampling in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quantitative dispensing device for environmental monitoring sampling, comprising a dispensing device assembly consisting of a dispensing cylinder, a top block, a piston rod, and a piston, wherein the top block, piston rod, and piston are connected sequentially from top to bottom, the piston rod extends from the top of the dispensing cylinder into the interior of the dispensing cylinder, the piston is vertically slidably connected to the inner side of the dispensing cylinder, and a quantitative component is provided on the outer side of the dispensing cylinder, the quantitative component being used to limit the upward movement of the top block, piston rod, and piston, thereby realizing a quantitative liquid dispensing operation; The quantitative component includes a moving limiting unit and an adjustment unit; The movable limiting unit is used to limit the upward movement height of the top block, piston rod, and piston. The adjustment unit is used to adjust the limit height of the moving limit unit.

[0006] As a further embodiment of this utility model: the movable limiting unit includes a sliding rod, a slot, an arc-shaped limiting plate, and an arc-shaped telescopic groove; The top block is symmetrically fixed with connecting blocks on both sides, and the top edge of the filling cylinder is symmetrically provided with through holes. The slide rod is symmetrically fixed to the bottom of the two connecting blocks and passes through the through holes, so as to realize the relative limiting sliding connection between the slide rod and the filling cylinder. The slot is opened on the outside of the slide rod, and the arc-shaped telescopic groove is symmetrically opened on the top of both sides of the arc-shaped limiting plate and completely penetrates the bottom of the arc-shaped limiting plate. The arc-shaped limiting plate is vertically slidably installed on the outside of the two slide rods through the arc-shaped telescopic groove, and the arc-shaped limiting plate is fixed in height by engaging with the slot through the adjustment unit. The upward movement of the top block causes the slide bar, the slot, and the arc-shaped limiting plate to move upward as a whole. The arc-shaped limiting plate contacts and limits the upward movement of the top block by contacting the top edge of the filling cylinder.

[0007] As a further improvement of this utility model: the adjustment unit includes an arc-shaped limiting groove, an arc-shaped locking block, an arc-shaped sliding plate, a pressure plate, and a W-shaped spring sheet; The arc-shaped limiting groove is formed in the middle of the upper and lower surfaces of the arc-shaped limiting plate and is connected to two arc-shaped telescopic grooves. The arc-shaped card block is slidably connected to the inner side of the arc-shaped telescopic groove, and the two arc-shaped sliding plates are symmetrically fixed to one side of the arc-shaped limiting groove and slidably connected to the inner side of the two arc-shaped limiting grooves respectively. The pressure plate is fixed to the bottom of the lower arc-shaped slide plate. The W-shaped spring is distributed in the middle of the two pressure plates, and the two ends of the W-shaped spring are fixedly connected to the two pressure plates respectively. The W-shaped spring is used to provide mutual squeezing force to the two sets of pressure plates, arc-shaped slide plate and arc-shaped locking block. The arc-shaped locking block is locked in the inner side of the slot to realize the height fixation of the arc-shaped limiting plate.

[0008] As a further improvement of this utility model: the outer wall side of the filling cylinder is provided with a first scale and a second scale, the second scale is distributed in the area where the arc-shaped limiting plate is located, and the scale increases sequentially from top to bottom; The first and second scales are distributed in degrees along the circumference, and the scale of the first scale increases sequentially from bottom to top.

[0009] As a further improvement of this utility model: multiple slots are evenly arranged along the vertical long side of the slide bar, and the number and position of the slots correspond one-to-one with the number and position of the scales of the second scale.

[0010] Compared with the prior art, the beneficial effects of this utility model are: By setting up a quantitative component, the dispenser assembly can achieve precise quantitative operation. Not only is the adjustment simple, but the overall structure can also be easily assembled and disassembled, allowing for disassembly, cleaning, and disinfection, thus facilitating reuse. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3 This is a schematic diagram showing the disassembled parts of this utility model; Figure 4 This is a partial exploded view of the adjustment unit of this utility model.

[0012] In the diagram: 1. Filler assembly; 101. Filling cylinder; 102. Top block; 103. Piston rod; 104. Piston; 105. Connecting block; 106. Through hole; 107. First scale; 108. Second scale; 2. Metering assembly; 201. Slide rod; 202. Slot; 203. Arc-shaped limiting plate; 204. Arc-shaped telescopic groove; 205. Arc-shaped limiting groove; 206. Arc-shaped locking block; 207. Arc-shaped sliding plate; 208. Pressure plate; 209. W-shaped spring. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-4 In this embodiment of the present invention, a quantitative dispenser for environmental monitoring sampling includes a dispenser assembly 1 consisting of a dispensing cylinder 101, a top block 102, a piston rod 103, and a piston 104. The top block 102, piston rod 103, and piston 104 are connected sequentially from top to bottom. The piston rod 103 extends from the top of the dispensing cylinder 101 into the interior of the dispensing cylinder 101. The piston 104 is vertically slidably connected to the inner side of the dispensing cylinder 101. A quantitative component 2 is provided on the outer side of the dispensing cylinder 101. The quantitative component 2 is used to limit the upward movement of the top block 102, piston rod 103, and piston 104, thereby realizing a quantitative liquid dispensing operation. The quantitative component 2 includes a moving limit unit and an adjustment unit. The moving limit unit is used to limit the upward movement of the top block 102, piston rod 103, and piston 104, and the adjustment unit is used to adjust the limit height of the moving limit unit. The movable limiting unit includes a slide bar 201, a slot 202, an arc-shaped limiting plate 203, and an arc-shaped telescopic groove 204; Connecting blocks 105 are symmetrically fixed on both sides of the top block 102. Through holes 106 are symmetrically opened on the top edge of the filling cylinder 101. The slide rod 201 is symmetrically fixed to the bottom of the two connecting blocks 105 and passes through the through holes 106 to realize the relative limiting sliding connection between the slide rod 201 and the filling cylinder 101. The slot 202 is opened on the outside of the slide rod 201, and the arc-shaped telescopic groove 204 is symmetrically opened on the top of both sides of the arc-shaped limiting plate 203 and completely penetrates the bottom of the arc-shaped limiting plate 203. The arc-shaped limiting plate 203 is vertically slidably installed on the outside of the two slide rods 201 through the arc-shaped telescopic groove 204, and the height of the arc-shaped limiting plate 203 is fixed by engaging with the slot 202 through the adjustment unit. The upward movement of the top block 102 causes the slide bar 201, the slot 202, and the arc-shaped limiting plate 203 to move upward as a whole. The arc-shaped limiting plate 203 contacts and limits the movement of the top block 102 by contacting the top edge of the filling cylinder 101. The adjustment unit includes an arc-shaped limiting groove 205, an arc-shaped locking block 206, an arc-shaped sliding plate 207, a pressure plate 208, and a W-shaped spring piece 209; The arc-shaped limiting groove 205 is opened in the middle of the upper and lower surfaces of the arc-shaped limiting plate 203 and is connected to the two arc-shaped telescopic grooves 204; The arc-shaped locking block 206 is slidably connected to the inner side of the arc-shaped telescopic groove 204, and the two arc-shaped sliding plates 207 are symmetrically fixed to one side of the arc-shaped limiting groove 205 and slidably connected to the inner side of the two arc-shaped limiting grooves 205 respectively. The pressure plate 208 is fixed to the bottom of the lower arc-shaped slide plate 207. The W-shaped spring piece 209 is distributed in the middle of the two pressure plates 208, and the two ends of the W-shaped spring piece 209 are fixedly connected to the two pressure plates 208 respectively. The W-shaped spring piece 209 is used to provide mutual squeezing force to the two sets of pressure plates 208, arc-shaped slide plate 207 and arc-shaped locking block 206. The arc-shaped locking block 206 is locked in the inner side of the slot 202 to realize the height fixation of the arc-shaped limiting plate 203.

[0015] In this embodiment, it should be noted that the injector assembly 1, composed of the injection cylinder 101, top block 102, piston rod 103, and piston 104, operates on the same principle as commonly available syringes on the market, using the up-and-down movement of the piston 104 to perform liquid dispensing and injection operations. During this process, when the top block 102 is manually pulled upward, the upward movement of the top block 102 causes the slide rod 201, the slot 202, and the arc-shaped limiting plate 203 to move upward as a whole. The arc-shaped limiting plate 203 contacts and limits the top edge of the filling cylinder 101, thereby limiting the upward movement of the top block 102 and limiting the stroke of the piston 104, thus achieving a quantitative effect. Therefore, the height of the arc-shaped limiting plate 203 can be adjusted according to the required amount to be taken, as follows: By manually pinching the two pressure plates 208 together, they are brought closer together. The two pressure plates 208 press the W-shaped spring 209, causing it to deform and shrink further. At the same time, the two arc-shaped locking blocks 206 move closer together. At this time, the two arc-shaped locking blocks 206 move out of the corresponding slots 202, thereby releasing the relative locking between the arc-shaped limiting plate 203 and the slide rod 201. (It should be noted that during this process, the arc-shaped sliding plate 207 slides along the arc-shaped limiting groove 205 to guide and limit the movement of the arc-shaped locking blocks 206.) Then, the height of the arc-shaped limiting plate 203 can be adjusted so that the arc-shaped limiting plate 203 moves up and down along the outer wall of the slide bar 201. When the arc-shaped limiting plate 203 is adjusted to the specified height, the pressure plate 208 is released. The pressure plate 208 and the arc-shaped locking block 206 will automatically reset under the elastic force of the W-shaped spring piece 209. The arc-shaped locking block 206 is inserted into the inner side of the slot 202 at this height, thereby fixing the height of the arc-shaped limiting plate 203. The combination of these components enables precise quantitative operation. Not only is the adjustment and operation simple, but the overall structure can also be easily assembled and disassembled, allowing for disassembly, cleaning, and disinfection, thus facilitating reuse.

[0016] Please refer to this carefully. Figures 1-3 The outer wall of the filling cylinder 101 is provided with a first scale 107 and a second scale 108. The second scale 108 is distributed in the area where the arc-shaped limiting plate 203 is located, and the scale increases sequentially from top to bottom. The first scale 107 and the second scale 108 are distributed at 180 degrees along the circumference, and the scale of the first scale 107 increases sequentially from bottom to top; Multiple slots 202 are evenly arranged along the vertical long side of the slide bar 201, and the number and position of the slots 202 correspond one-to-one with the number and position of the scales of the second scale 108.

[0017] In this embodiment, it should be noted that the filling cylinder 101 is made of transparent material. Its first scale 107 is used to mark the liquid volume represented by the horizontal height of the lower surface of the piston 103, and the second scale 108 is used to mark the liquid volume represented by the horizontal height of the upper surface of the arc-shaped limiting plate 203. The first scale 107 and the second scale 108 allow the operator to quickly determine the liquid volume.

[0018] 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 quantitative dispensing device for environmental monitoring sampling, comprising a dispensing device assembly (1) consisting of a dispensing cylinder (101), a top block (102), a piston rod (103), and a piston (104), wherein the top block (102), piston rod (103), and piston (104) are connected sequentially from top to bottom, the piston rod (103) extends from the top of the dispensing cylinder (101) into the interior of the dispensing cylinder (101), and the piston (104) is vertically slidably connected to the inner side of the dispensing cylinder (101), characterized in that, A metering component (2) is provided on the outside of the filling cylinder (101). The metering component (2) is used to limit the upward movement of the top block (102), piston rod (103), and piston (104) to realize the metered liquid dispensing operation. The quantitative component (2) includes a moving limit unit and an adjustment unit; The moving limiting unit is used to limit the upward movement height of the top block (102), piston rod (103), and piston (104); The adjustment unit is used to adjust the limit height of the moving limit unit.

2. The quantitative dispensing device for environmental monitoring sampling according to claim 1, characterized in that, The movable limiting unit includes a slide bar (201), a slot (202), an arc-shaped limiting plate (203), and an arc-shaped telescopic groove (204). The top block (102) is symmetrically fixed with connecting blocks (105) on both sides, and the top edge of the filling cylinder (101) is symmetrically provided with through holes (106). The slide rod (201) is symmetrically fixed to the bottom of the two connecting blocks (105) and passes through the through holes (106) to realize the relative limiting sliding connection between the slide rod (201) and the filling cylinder (101). The slot (202) is opened on the outside of the slide rod (201), and the arc-shaped telescopic groove (204) is symmetrically opened on the top of both sides of the arc-shaped limiting plate (203) and completely penetrates the bottom of the arc-shaped limiting plate (203). The arc-shaped limiting plate (203) is vertically slidably installed on the outside of the two slide rods (201) through the arc-shaped telescopic groove (204), and the arc-shaped limiting plate (203) is fixed in height by engaging with the slot (202) through the adjustment unit. The upward movement of the top block (102) causes the slide rod (201), the slot (202), and the arc-shaped limiting plate (203) to move upward as a whole. The arc-shaped limiting plate (203) contacts and limits the top edge of the filling cylinder (101), thereby achieving the upward movement limit of the top block (102).

3. The quantitative dispensing device for environmental monitoring sampling according to claim 2, characterized in that, The adjustment unit includes an arc-shaped limiting groove (205), an arc-shaped locking block (206), an arc-shaped sliding plate (207), a pressure plate (208), and a W-shaped spring sheet (209); The arc-shaped limiting groove (205) is opened in the middle of the upper and lower surfaces of the arc-shaped limiting plate (203) and is connected to the two arc-shaped telescopic grooves (204); The arc-shaped card block (206) is slidably connected to the inner side of the arc-shaped telescopic groove (204), and the two arc-shaped sliding plates (207) are symmetrically fixed to one side of the arc-shaped limiting groove (205) and slidably connected to the inner side of the two arc-shaped limiting grooves (205); The pressure plate (208) is fixed to the bottom of the lower arc-shaped sliding plate (207). The W-shaped spring (209) is distributed in the middle of the two pressure plates (208), and the two ends of the W-shaped spring (209) are fixedly connected to the two pressure plates (208) respectively. The W-shaped spring (209) is used to provide mutual squeezing force to the two sets of pressure plates (208), arc-shaped sliding plate (207), and arc-shaped locking block (206). The arc-shaped locking block (206) is locked in the inner side of the slot (202) to realize the height fixation of the arc-shaped limiting plate (203).

4. The quantitative dispensing device for environmental monitoring sampling according to claim 3, characterized in that, The outer wall of the filling cylinder (101) is provided with a first scale (107) and a second scale (108). The second scale (108) is distributed in the area where the arc-shaped limiting plate (203) is located, and the scale increases sequentially from top to bottom. The first scale (107) and the second scale (108) are distributed at 180 degrees along the circumference, and the scale of the first scale (107) increases sequentially from bottom to top.

5. A quantitative dispenser for environmental monitoring sampling according to claim 4, characterized in that, The slots (202) are evenly arranged in multiple ways along the vertical long side of the slide bar (201), and the number and position of the slots (202) correspond one-to-one with the number and position of the scales of the second scale (108).

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