A water quality sampling bottle and sample distribution unit

Abstract

The present invention relates to a water quality sampling bottle, comprising a sampling bottle body, wherein a sampling bottle vent plug and a sampling bottle collection port are arranged on the sampling bottle body, one end of the sampling bottle is inwardly recessed on one side to form an L-shaped notch, the side wall of the L-shaped notch forms a boss, and the sampling bottle collection port is located on the boss. The water quality sampling bottle provided by the present invention can be filled with water by linear motion, thus saving space occupied by a refrigerator, and can simplify the structure of filling the water quality sampling bottle with water, which is conducive to preventing cross contamination caused by water filling.

Description

Technical Field

[0001] The invention relates to the technical field of water quality detection, in particular to a water quality sampling bottle and a sample retention distribution unit. Background Art

[0002] The main function of the water sampler is to collect the tested water sample into the water sample bucket of the sampler, mix it and then supply it to the downstream analyzer for analysis of the content of different factors. If the content exceeds the standard, the system will notify the sampler to retain the sample, and the sample will be placed in the sampling bottle placed in the refrigerator. There are two types of existing sampling bottles:

[0003] The first is the conical bottle design, which divides a cylinder into 24 equal parts. Like cutting a cake, 24 sampling bottles are arranged into a cylindrical sampling bottle group. There is a rotating rod on the barrel-type sampling bottle group, which drives the water injection port to rotate. The emptying mechanism cannot be installed on the shaft arm, and the barrel-type sampling bottle group must also rotate. For water quality samplers using conical bottle groups, the bottle group is movable and the sampling bottles can be taken out individually. Due to the volume limitation of the refrigerator, the sampling bottle is relatively high. During the assembly process, the rotating rod is not concentric with the sampling barrel, causing the water injection pipe to be misaligned with the bottle mouth when injecting water, which may cause water samples to splash, or the emptying mechanism hits the bottle mouth and causes damage. The emptying function requires the barrel-type sampling bottle group to rotate as well, and the bottle group is fixed to the motor, which makes it difficult to remove the sampling bottle group and increases the complexity of the mechanism. When there is a water sample in the bottle group, the motor shaft will be unevenly stressed and easily damaged.

[0004] The second type is that the sampling bottles are arranged in an MxN array. In order to keep the water samples in the sampling bottles, a guide plate is additionally designed above the sampling bottle array. The guide plate is divided into MxN water guide grooves, which guide the water to MxN sampling bottles. Each sampling bottle has MxN small openings on the water guide groove, which are arranged in a straight line. The water quality sampler using the MxN array bottle group needs to additionally design a guide plate. Due to the number of sampling bottles and the size of the refrigerator, the water inlet on the upper part of each water guide groove on the guide plate has a very small diameter and a very shallow depth, which requires high movement accuracy of the slide, and the installation structure is complex. When the sampled water flows downstream, it collides with the water trough and easily splashes into the adjacent water guide groove, causing cross-contamination of different water samples. Summary of the invention

[0005] The purpose of the present invention is to provide a water quality sampling bottle to solve the technical problem of complex installation caused by the above-mentioned arrangement of water quality sampling bottles.

[0006] A technical solution of the present application is: a water quality sampling bottle, including a sampling bottle body, on which a sampling bottle air permeable plug and a sampling bottle collecting port are arranged, one end of the sampling bottle is recessed inward on one side to form an L-shaped notch, the side wall of the L-shaped notch forms a boss, and the sampling bottle collecting port is located on the boss.

[0007] Preferably, the width of the boss is half the thickness of the sampling bottle body.

[0008] Preferably, the length and width of the boss are equal.

[0009] Preferably, a sampling bottle sealing cap is threadedly connected to the collecting port of the sampling bottle, a through hole is axially arranged at the middle position of the sampling bottle sealing cap, the sampling bottle sealing cap comprises a threaded connection part and an operating part, an elastic sealing gasket is arranged at the connection position between the threaded connection part and the operating part, the elastic sealing gasket isolates the through hole into two parts, and a cutout is arranged in the middle of the elastic sealing gasket.

[0010] Preferably, a handle is provided on the side of the sampling bottle body away from the L-shaped notch, and the sampling bottle air plug is provided on the top surface of the handle; and a breathable membrane is provided on the sampling air plug.

[0011] When the water quality sampling bottle provided by the present invention is used, refer to Figure 3 , multiple water quality sampling bottles are divided into two rows so that the sampling bottles are arranged in pairs, and each pair of the water quality sampling bottles is symmetrically arranged so that the bosses of the two water quality sampling bottles just fill the corresponding L-shaped notches. In this way, multiple pairs of water quality sampling bottles form two rows so that the sampling bottle collection ports of multiple pairs of the water quality sampling bottles are located in a straight line, thereby saving space in the refrigerator and simplifying the structure of filling the water quality sampling bottles, which is beneficial to prevent cross contamination caused by water filling.

[0012] Another technical solution of the present application is: a water quality sample distribution unit, comprising a sampling bottle group, a sampling bottle group bracket and a sample distribution slide, the sampling bottle group comprising multiple pairs of the above-mentioned water quality sampling bottles, each pair of the water quality sampling bottles are symmetrically arranged so that the bosses of the two water quality sampling bottles just fill the corresponding L-shaped notches, and the multiple pairs of the water quality sampling bottles form two rows so that the sampling bottle collection ports of the multiple pairs of the water quality sampling bottles are located in a straight line; the sample distribution slide is connected to the sampling bottle group, and the sampling bottle group is arranged on the sampling bottle group bracket.

[0013] Preferably, the sample distribution slide includes a first fixed plate and a second fixed plate, a bottle mouth limit plate and a guide rail are arranged between the first fixed plate and the second fixed plate, a slider is arranged on the guide rail, bearings are arranged on the first fixed plate and the second fixed plate, a ball screw is arranged between the two bearings, the ball screw is connected with a screw nut, and the screw nut is connected to the slider so that the slider can move along the guide rail when the screw rotates; a push-pull electromagnet is installed on the slider, and the power output end of the push-pull electromagnet is connected with a pipe connecting plate.

[0014] Preferably, a zero position sensor and a stepper motor are mounted on the first fixed plate, a driving wheel is arranged on the stepper motor, a driven wheel is arranged on the ball screw, and the driving wheel and the driven wheel are connected via a synchronous belt.

[0015] Preferably, a rotating shaft fixing plate is installed on both the first fixing plate and the second fixing plate, a bottle mouth limiting rod is installed between the two rotating shaft fixing plates, and a space for accommodating the collecting port of the sampling bottle is formed between the bottle mouth limiting rod and the bottle mouth limiting plate, and a handle is installed on one of the rotating shaft fixing plates, and the handle is connected to the rotating shaft fixing plate through a rotating shaft.

[0016] Preferably, the sampling bottle group bracket includes a frame and a movable plate composed of a left limit plate, a right limit plate, a rear limit plate and a front limit plate, the movable plate is fixedly connected to the front limit plate, a row of holes is arranged on the movable plate, and the movable plate is fixedly connected to the support foot by screws and the row of holes.

[0017] The water quality sample distribution unit provided by the present invention adopts the above-mentioned water quality sampling bottles and divides the water quality sampling bottles into two rows so that the sampling bottles are arranged in pairs, and each pair of the water quality sampling bottles is symmetrically arranged so that the bosses of the two water quality sampling bottles just fill the corresponding L-shaped notches. In this way, multiple pairs of water quality sampling bottles form two rows so that the sampling bottle collection ports of multiple pairs of the water quality sampling bottles are located in a straight line, thereby saving space in the refrigerator and simplifying the structure of filling the water quality sampling bottles with water, which is beneficial to preventing cross contamination caused by water filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is one of the structural schematic diagrams of a water quality sampling bottle of the present invention;

[0019] Figure 2 This is the second structural schematic diagram of a water quality sampling bottle of the present invention;

[0020] Figure 3 This is the usage status diagram of the water quality sampling bottle;

[0021] Figure 4 It is a structural schematic diagram of the sealing cover of the sampling bottle of the present invention;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the sealing cover of the sampling bottle of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the vent plug of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the sample retention distribution unit of the present invention;

[0025] Figure 8 It is a structural schematic diagram of the sample distribution slide of the present invention;

[0026] Fig. 9 It is a side view of the sample distribution slide;

[0027] Fig.10 It is a structural schematic diagram of the bottle group support frame;

[0028] In the figure: sampling bottle body 1, sampling bottle sealing cover 2, sampling bottle vent plug 3, sampling bottle collection port 101, vent hole 102, handle 103, L-shaped notch 104, operating part 201, elastic sealing pad 202, threaded connection part 203, cross cut 204, plug body 301, vent membrane 302, sampling bottle set 1400, bottle mouth limit plate 2101, first fixing plate 2102, second fixing plate 2103, guide rail 2104, slider 2105, sleeve 2106, ball screw 2107, screw nut 2108, Bearing 2109, zero position sensor 2110, baffle 2111, electromagnet fixing plate 2112, sample tube 2113, push-pull electromagnet 2114, tube connecting plate 2115, stepping motor 2116, driving wheel 2117, driven wheel 2118, synchronous belt 2119, handle 2120, rotating shaft fixing plate 2121, rotating shaft 2122, sampling bottle group bracket 3100, left limit plate 3101, right limit plate 3102, rear limit plate 3103, movable plate 3104, support foot 3105, front limit plate 3106. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Example 1, see Figure 1 and Figure 2 A water quality sampling bottle of the present invention comprises a sampling bottle body 1, on which a sampling bottle air permeable plug 3 and a sampling bottle collecting port 101 are arranged, one end of the sampling bottle is recessed inwardly on one side to form an L-shaped notch 104, the side wall of the L-shaped notch forms a boss, and the sampling bottle collecting port is located on the boss, wherein the setting of the sampling bottle air permeable plug can use the existing design, generally, an air hole 102 can be set on the sampling bottle, and the sampling bottle air permeable plug is installed on the air hole, in this embodiment, a handle 103 is arranged on the side of the sampling bottle body away from the L-shaped notch, and the sampling bottle air permeable plug is arranged on the top surface of the handle; a breathable membrane 302 is arranged on the sampling air permeable plug.

[0031] In this embodiment, the sampling bottle body can generally be blow-molded from acid and alkali corrosion resistant materials (PTFE / PP / PLA, etc.), and the sampling bottle collection port can be set as a threaded port, and the threaded port is provided with a tapered pipe thread, in the middle of the boss on the edge of the L-shaped notch, and the air vent 102 is above the bottle body. Figure 6The breathable plug can also be an integrally-injected two-layer plug body 301 made of a polymer material (eptfe), with a breathable membrane 302 sandwiched in the middle, through which gas molecules can pass but water molecules cannot. This makes it waterproof (avoiding contamination at the same time) but breathable, solving the problem of high pressure inside the sampling bottle when retaining samples and emptying it.

[0032] When the water sampling bottle in this embodiment is used, refer to Figure 3 , multiple water quality sampling bottles are divided into two rows so that the sampling bottles are arranged in pairs, and each pair of the water quality sampling bottles is symmetrically arranged so that the bosses of the two water quality sampling bottles just fill the corresponding L-shaped notches. In this way, multiple pairs of water quality sampling bottles form two rows so that the sampling bottle collection ports of multiple pairs of the water quality sampling bottles are located in a straight line, thereby saving space in the refrigerator and simplifying the structure of filling the water quality sampling bottles, which is beneficial to prevent cross contamination caused by water filling.

[0033] In actual production, the width of the boss is generally set to half the thickness of the sampling bottle body, so that the two sides of the paired water quality sampling bottles form a plane after being spliced. In this embodiment, the length and width of the boss can be set to be equal. The width of the boss in this application can also be said to be the thickness of the boss, that is, the distance between the two edges of the boss in the thickness direction of the water quality sampling bottle body.

[0034] As a preferred embodiment, see Figure 1 , Figure 4 and Figure 5, a sampling bottle sealing cover 2 is threadedly connected to the sampling bottle collection port, a through hole is axially arranged in the middle position of the sampling bottle sealing cover, the sampling bottle sealing cover includes a threaded connection part 203 and an operating part 201, an elastic sealing pad 202 is arranged at the connection position of the threaded connection part and the operating part, the elastic sealing pad separates the through hole into two parts, a cross cut 204 is arranged in the middle of the elastic sealing pad, and the general cross cut width is 0.1-0.3mm. This structure is provided with a sealing cover and a cross cut between the threaded connection part and the operating part, so that when in use, when the cross cut is under pressure, it can be evenly opened to the surroundings, and the sample tube can be directly extended into the bottom of the bottle, further preventing cross contamination caused by water injection, and because the sealing pad is made of silicone material, it has a greater elastic contraction force and keeps a seal with the sample tube. At this time, there is a vent plug 3 on the sampling bottle, which can release the pressure in the sampling bottle when the sample tube is filled with water and pumped out water, so as to facilitate water injection and pumping. At the same time, when the sample tube is retracted, the cross cut automatically shrinks due to elasticity to maintain the sealing of the sampling bottle, and the inner wall of the cross cut is close to the outer wall of the sample tube during the retraction of the sample tube, so that the outer wall of the sample tube is not easily attached with liquid when it is retracted; in addition, since the elastic sealing pad is at a certain distance from the top of the sampling bottle, the sample tube is still located in the through hole when it is separated from the cross cut, further preventing residual droplets in the sample tube from contaminating adjacent sampling tubes; in addition, the sample tube is directly extended into the bottom of the bottle to achieve the emptying of the water quality sampling bottle in the form of negative pressure, which makes the emptying operation of the water quality sampling bottle simpler and can simplify the structure of the water quality sampler. It should be noted that the above-mentioned cross cut is only a preferred structure, and the cross cut can also use cuts of other shapes.

[0035] Example 2, see Figure 7-Figure 9, a water quality sample distribution unit of the present invention, a sampling bottle group 1400, a sampling bottle group bracket 3100 and a sample distribution slide 2100, the sampling bottle group includes a plurality of pairs of the above-mentioned water quality sampling bottles, each pair of the water quality sampling bottles is symmetrically arranged so that the bosses of the two water quality sampling bottles just fill the corresponding L-shaped notches, and the plurality of pairs of the water quality sampling bottles form two rows so that the sampling bottle collection ports of the plurality of pairs of the water quality sampling bottles are located in a straight line; the sample distribution slide is connected to the sampling bottle group, and the sampling bottle group is arranged on the sampling bottle group bracket, wherein the sample distribution slide includes a first fixed plate 2102 and a second fixed plate 2103, a bottle mouth limiting plate 2101 and a guide rail 2104 are arranged between the first fixed plate and the second fixed plate, in this embodiment, a circular guide rail can be used as the guide rail, a slider 2105 is arranged on the guide rail, and the slider is connected to the guide rail through a sliding sleeve 2106, the first fixed plate 2102 and the second fixed plate 2103 Bearings 2109 are provided on both sides, and a ball screw 2107 is provided between the two bearings. The ball screw 2107 is connected with a screw nut 2108. The screw nut 2108 is connected to the slider 2105 so that the slider can move along the guide rail when the screw rotates, wherein the screw is preferably located above the slide rail; of course, the slider can also be driven using other existing driving structures; a push-pull electromagnet 2114 is installed on the slider, and the power output end of the push-pull electromagnet is connected with a tube connecting plate 2115, wherein an electromagnet fixing plate 2112 is generally installed on the slider, and the push-pull electromagnet 2114 is fixed on the electromagnet fixing plate. When in use, the tube connecting plate is connected to the fixed sample tube. When the push-pull electromagnet 2114 is energized, the sample tube 2113 can be driven to move downward and pierce the sealing gasket. When the power is off, the sample tube is reset. In this embodiment, a baffle 2111 is generally installed on the slider as a detection reference for the zero position sensor to ensure the zero position initial position.

[0036] As a driving structure of the ball screw, a zero position sensor 2110 and a stepper motor 2116 are installed on the first fixed plate 2102, a driving wheel 2117 is arranged on the stepper motor 2116, a driven wheel 2118 is arranged on the ball screw 2107, and the driving wheel and the driven wheel are connected by a synchronous belt 2119. The combined action of the stepper motor and the zero position sensor can ensure the initial position and moving distance of the sample tube. In the present invention, the structure of the horizontal movement and vertical movement of the above-mentioned sample distribution slide can also use other existing structures as long as it can meet the space requirements of the refrigerator.

[0037] For easy operation, a rotating shaft fixing plate 2121 is installed on each of the first fixing plate and the second fixing plate 2103, a bottle mouth limiting rod 2123 is installed between the two rotating shaft fixing plates, and a space for accommodating the sampling bottle collection port or the sampling bottle sealing cover is formed between the bottle mouth limiting rod and the bottle mouth limiting plate, and a handle 2120 is installed on one of the rotating shaft fixing plates, and the handle is connected to the rotating shaft fixing plate 2121 through a rotating shaft 2122. Figure 7 When the handle 2121 is pressed downward, since the direction of the rotating shaft and the pressing surface are not in the vertical direction, an offset cam structure is formed. The bottle mouth limit plate 2101 and the circular guide rail 2104 limit the position and spacing of multiple sealing covers 2 on the sampling bottle group 1400. When the slide moves, the sample tube is aligned with the sealing cover to prevent cross-contamination caused by liquid splashing due to the expansion of the sampling bottle itself or processing errors that cause the water injection tube and the bottle mouth to be misaligned and the inconsistent bottle mouth spacing.

[0038] See also Figure 8 In this embodiment, the sampling bottle group bracket includes a frame and a movable plate 3104 composed of a left limit plate 3101, a right limit plate 3102, a rear limit plate 3103 and a front limit plate 3106. The movable plate is fixedly connected to the front limit plate. A row of holes is arranged on the movable plate 3104. The movable plate is fixedly connected to the support foot 3105 by screws and the row of holes. The sampling bottle bracket is arranged according to the sampling bottle group and can be raised and lowered and adjusted, and is easy to use.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The words "first" and "second" are only used to distinguish the names and are not intended to limit the technical terms. For those skilled in the art, the present invention may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water quality sampling bottle, comprising a sampling bottle body (1), wherein the sampling bottle body is provided with a sampling bottle vent plug (3) and a sampling bottle collection port (101), characterized in that: One end of the sampling bottle is recessed inwards on one side to form an L-shaped notch (104), the side wall of the L-shaped notch forms a boss, and the sampling bottle collection port is located on the boss; The width of the boss is half the thickness of the sampling bottle body; A sampling bottle sealing cover (2) is threadedly connected to the sampling bottle collection port, a through hole is axially arranged in the middle position of the sampling bottle sealing cover, the sampling bottle sealing cover comprises a threaded connection part (203) and an operating part (201), an elastic sealing gasket (202) is arranged at the connection position between the threaded connection part and the operating part, the elastic sealing gasket separates the through hole into two parts, and a cutout is arranged in the middle of the elastic sealing gasket.

2. A water quality sampling bottle according to claim 1, characterized in that: The length and width of the boss are equal.

3. A water quality sampling bottle according to claim 1, characterized in that: A handle (103) is provided on one side of the sampling bottle body away from the L-shaped notch, and the sampling bottle air-permeable plug is provided on the top surface of the handle; A breathable membrane (302) is provided on the breathable plug of the sampling bottle.

4. A water quality sample distribution unit, comprising a sampling bottle set, a sampling bottle set bracket and a sample distribution slide, characterized in that: The sampling bottle group comprises a plurality of pairs of water quality sampling bottles according to any one of claims 1 to 3, each pair of the water quality sampling bottles being symmetrically arranged so that the bosses of the two water quality sampling bottles just fill the corresponding L-shaped notches, and the plurality of pairs of the water quality sampling bottles form two rows so that the sampling bottle collection ports of the plurality of pairs of the water quality sampling bottles are located in a straight line; The sample distribution slide is connected to the sampling bottle group, and the sampling bottle group is arranged on the sampling bottle group bracket.

5. The water quality sample distribution unit according to claim 4, characterized in that: The sample distribution slide comprises a first fixed plate (2102) and a second fixed plate (2103); a bottle mouth limiting plate (2101) and a guide rail (2104) are arranged between the first fixed plate and the second fixed plate; a slider (2105) is arranged on the guide rail; bearings (2109) are arranged on the first fixed plate (2102) and the second fixed plate (2103); a ball screw (2107) is arranged between the two bearings; the ball screw (2107) is connected to a screw nut (2108); the screw nut (2108) is connected to the slider (2105) so that the slider can move along the guide rail when the screw rotates; A push-pull electromagnet (2114) is installed on the sliding block, and a power output end of the push-pull electromagnet is connected to a pipe connecting plate (2115).

6. The water quality sample distribution unit according to claim 5, characterized in that: A zero position sensor (2110) and a stepper motor (2116) are mounted on the first fixed plate (2102); a driving wheel (2117) is disposed on the stepper motor (2116); a driven wheel (2118) is disposed on the ball screw (2107); and the driving wheel and the driven wheel are connected via a synchronous belt (2119).

7. The water quality sample distribution unit according to claim 5 or 6, characterized in that: A rotating shaft fixing plate (2121) is installed on both the first fixing plate and the second fixing plate (2103), a bottle mouth limiting rod (2123) is installed between the two rotating shaft fixing plates, and a space for accommodating the sampling bottle collection port is formed between the bottle mouth limiting rod and the bottle mouth limiting plate, and a handle (2120) is installed on one of the rotating shaft fixing plates, and the handle is connected to the rotating shaft fixing plate (2121) via a rotating shaft (2122).

8. The water quality sample distribution unit according to claim 5 or 6, characterized in that: The sampling bottle group bracket includes a frame composed of a left limit plate (3101), a right limit plate (3102), a rear limit plate (3103) and a front limit plate (3106), and a movable plate (3104), wherein the movable plate is fixedly connected to the front limit plate, a row of holes is provided on the movable plate (3104), and the movable plate is fixedly connected to the support foot (3105) by means of screws and the row of holes.

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