A water sample storage box

By using a test tube fixing system with mobile clamping components and fixed clamping components in the water sample storage box, combined with the design of the counterweight block, the problem of inclination of the test tube on moving or uneven ground is solved, and the solid clamping of the test tube is achieved and the accuracy of water samples preservation.

CN112478392BActive Publication Date: 2024-12-31FOSHAN POLYTECHNIC
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Patent Information

Application Number
CN202011508637.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-12-18
Publication Date
2024-12-31
Estimated Expiration
2040-12-18

AI Technical Summary

Technical Problem

When existing water sample storage boxes are moved or placed on uneven ground, the test tubes are prone to tilt and shake, causing water sample to spill and mix samples, affecting the accuracy of the test results.

Method used

A water sample storage box is designed, using a test tube fixing system including a mobile clamping assembly and a fixed clamping assembly. The test tube is securely clamped by adjusting screws and sliders, and a counterweight block is provided at the bottom of the test tube fixing seat to maintain it. Horizontal status.

Benefits of technology

It effectively prevents the test tube from spilling water samples in the water sample storage box on the tilted or uneven ground, improving the stability of the sample and the accuracy of the test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a water sample storage box, comprising a box body, wherein a test tube fixing seat and one or more horizontally arranged clamping components for fixing the test tube for collecting the water sample are arranged in the box body, wherein the test tube fixing seat is arranged below the clamping component and is used to fix the lower part of the test tube for collecting the water sample, wherein the clamping component comprises a movable clamping component and a fixed clamping component, wherein the movable clamping component in each clamping component can approach or move away from the fixed clamping component in a horizontal direction; when in use, the water sample storage box can well fix the test tube containing the water sample so that the test tube is firmly fixed in the water sample storage box, and can adjust itself when the water sample storage box is tilted so that the test tube is always in a horizontal state to prevent the water sample from being spilled due to the tilt.
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Description

Technical Field

[0001] The invention relates to the technical field of water sample storage containers, and in particular to a water sample storage box. Background Art

[0002] With the improvement of people's environmental awareness and the protection of the environment, water quality is now usually tested for environmental protection. The testing scope usually includes sewage, pure water, sea water, fishery water, swimming pool water, reclaimed water, bottled pure water, drinking natural mineral water, cooling water, farmland irrigation water, landscape water, drinking water, groundwater, boiler water, surface water, industrial water, test water, etc. When conducting environmental testing on water quality, it is usually necessary to collect the water source for testing on the spot with a test tube, and then put the collected water sample into a water sample storage box through the test tube and bring it back to the laboratory for testing and analysis.

[0003] In the existing water sample storage box used for water quality and environmental protection testing, the test tubes are usually fixed directly by a test tube box. When the water sample storage box is moved or placed on some uneven ground, the test tube box that fixes the test tube is prone to tilting and shaking, causing the water sample in the test tube to spill, which will not only cause sample loss but also may cause sample mixing problems, which can easily lead to deviations in the test results.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a water sample storage box, aiming to solve at least one of the above-mentioned technical problems in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A water sample storage box comprises a box body, wherein the box body is provided with a test tube fixing seat, and one or more horizontally arranged clamping assemblies for fixing the test tube for collecting the water sample. The test tube fixing seat is arranged below the clamping assembly and is used to fix the lower part of the test tube for collecting the water sample. The clamping assembly comprises a movable clamping assembly and a fixed clamping assembly. The movable clamping assembly in each clamping assembly can approach or move away from the fixed clamping assembly in the horizontal direction.

[0008] The water sample storage box also includes an adjusting screw and sliding rods respectively arranged on the left and right sides of the box body. The adjusting screw is perpendicular to the movable clamping assembly and is threadedly connected to the movable clamping assembly to drive the movable clamping assembly to approach or move away from the fixed clamping assembly in the horizontal direction. The two ends of the movable clamping assembly are respectively slidably connected to the two sliding rods.

[0009] In the water sample preservation box, the movable clamping assembly includes a movable splint, and the two ends of the movable splint are respectively slidably connected to the two sliding rods; the fixed clamping assembly includes a fixed splint, and the two ends of the fixed splint are fixed to the inner wall of the box body; the movable splint and the fixed splint are respectively connected with one or more test tube clips for clamping test tubes through rotating shafts; the test tube clips are arranged along the length direction of the movable splint and the fixed splint, and the test tube clips on the movable splint and the fixed splint correspond one to one.

[0010] In the water sample storage box, the test tube fixing seat is provided with one or more test tube slots, and the test tube slots correspond one to one with the test tube buckles on the fixing splint.

[0011] In the water sample storage box, a plurality of grooves are provided on the inner wall of the test tube slot, and the plurality of grooves are arranged circumferentially; a first elastic connecting piece is also provided, one end of the first elastic connecting piece is connected to the bottom of the groove, and the other end is connected to a clamping block, and the clamping block is arranged outside the groove.

[0012] The water sample storage box also includes a support rod and a first telescopic rod. The support rod is fixed to the bottom of the box body, and its upper end is rotatably connected to the test tube fixing seat on the central axis of the test tube fixing seat through a rotating shaft. The first telescopic rod includes at least two rods, which are respectively arranged on the left and right sides of the test tube fixing seat, and their upper ends are connected to the test tube fixing seat, and their lower ends are fixed to the bottom of the box body.

[0013] In the water sample storage box, a top pressure assembly is also provided on the top cover of the box body, and the lower end of the top pressure assembly abuts against the top of the test tube clamped by the movable clamping assembly and the fixed clamping assembly.

[0014] In the water sample storage box, the top pressure assembly includes a second elastic connecting piece, a second telescopic rod, a pressure plate and an elastic gasket. The second elastic connecting piece includes one or more, one end of which is fixed to the bottom of the top cover, and the other end is connected to the upper surface of the pressure plate. The second telescopic rod includes at least two, which are respectively arranged on the left and right sides of the pressure plate, and the lower ends are connected to the pressure plate, and the upper ends are fixed to the bottom of the top cover; the elastic gasket is fixed to the bottom of the pressure plate, covering the contact area between the pressure plate and the test tube clamped in the dynamic clamping assembly and the fixed clamping assembly.

[0015] In the water sample storage box, a counterweight is connected to the center of the bottom of the test tube fixing seat through a rope, and the counterweight is covered with a counterweight protective shell, and the counterweight protective shell is fixed on the bottom surface of the test tube fixing seat.

[0016] In the water sample storage box, one end of the adjusting screw passes through the rear wall of the box body and the movable clamping assembly and the fixed clamping assembly, and is connected to the front wall of the box body through a bearing body, and the other end is placed outside the box body and is sleeved with an adjusting handwheel.

[0017] Beneficial effects:

[0018] The present invention provides a water sample storage box, which can well fix a test tube containing a water sample when in use, so that the test tube is firmly fixed in the water sample storage box, and can adjust itself when the water sample storage box is tilted, so that the test tube is always in a horizontal state, and the water sample is prevented from spilling due to tilting. The water sample storage box is provided with a movable clamping component that is pushed close to or away from a fixed clamping component by adjusting an adjusting screw, and the upper part of the test tube can be conveniently clamped by a combination of the two, and the lower part of the test tube is inserted into a test tube slot on a test tube fixing seat, and the clamping block provided in the slot can further press and clamp the lower part of the test tube, so that the test tube is more firmly fixed in the box, and at the same time, the counterweight block provided at the bottom of the test tube fixing seat enables the test tube fixing seat to rotate by itself through a rotating shaft to maintain a horizontal state, so that the test tube inserted in the test tube slot is always in a vertical state. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of the water sample storage box described in the present invention.

[0020] Figure 2 It is a schematic diagram of the top structure of the movable clamping assembly and the fixed clamping assembly.

[0021] Figure 3 It is a schematic structural diagram of the inclined state of the water sample storage box of the present invention.

[0022] Figure 4 A cross-sectional view of a test tube slot of a water sample storage box according to one embodiment.

[0023] Figure 5 A top view of the test tube slot of the water sample storage box in another embodiment.

[0024] Figure 6 It is a schematic diagram of the connection structure between the test tube buckle and the fixed splint.

[0025] Figure 7 It is a schematic diagram of the connection structure between the test tube fixing seat and the counterweight block.

[0026] Description of the main component symbols: 1-box, 2-test tube fixing seat, 3-movable clamping assembly, 4-fixed clamping assembly, 5-adjusting screw, 6-sliding rod, 7-support rod, 8-first telescopic rod, 9-top pressing assembly, 10-counterweight block, 11-counterweight block protective shell, 12-adjusting handwheel, 201-test tube slot, 2011-groove, 2012-first elastic connecting piece, 2013-clamping block, 301-movable splint, 401-fixed splint, 302 / 402-test tube buckle, 901-second elastic connecting piece, 902-second telescopic rod, 903-pressure plate, 904-elastic gasket. DETAILED DESCRIPTION

[0027] The present invention provides a water sample storage box. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] See also Figure 1-7 The present invention provides a water sample storage box for environmental protection water sample detection and storage, which can prevent the water sample from spilling during the movement process or when placed on an uneven surface after the water sample is collected, thereby improving the accuracy of water sample detection. The water sample storage box includes a box body 1, and the box body 1 is provided with a test tube fixing seat 2 and one or more horizontally arranged clamping components for fixing the test tube for collecting the water sample. The test tube fixing seat 2 is arranged below the clamping component and is used to fix the lower part of the test tube for collecting the water sample. The clamping component includes a mobile clamping component 3 and a fixed clamping component 4. The mobile clamping component 3 in each clamping component can approach or move away from the fixed clamping component 4 in the horizontal direction.

[0030] After the test tube for collecting water samples has collected water samples, the bottom is first inserted into the test tube fixing seat 2, at which time the mobile clamping assembly 3 is away from the fixed clamping assembly 4, and then the mobile clamping assembly 3 is moved closer to the fixed clamping assembly 4 until the mobile clamping assembly 3 and the fixed clamping assembly 4 are respectively in contact with the side walls of the test tube for collecting water samples, thereby fixing the upper part of the test tube. The water sample storage box can fix the upper part and the bottom of the test tube for collecting water samples respectively, thereby improving the stability of the test tube in the water sample storage box and avoiding the phenomenon of water samples tipping over during movement.

[0031] Furthermore, the water sample storage box also includes an adjusting screw 5 and sliding rods 6 respectively arranged on the left and right sides of the box body 1. The adjusting screw 5 is perpendicular to the mobile clamping assembly 3 and is screwed with the mobile clamping assembly 3 to drive the mobile clamping assembly 3 to approach or move away from the fixed clamping assembly 4 in the horizontal direction. The two ends of the mobile clamping assembly 3 are respectively slidably connected with the two sliding rods 6. When there are multiple mobile clamping assemblies 3, the positions of the mobile clamping assemblies 3 can be adjusted simultaneously by the adjusting screw 5, thereby improving the convenience of use. The adjusting screw 5 is screwed with the mobile clamping assembly 3 to position the mobile clamping assembly 3. The sliding rods 6 arranged at both ends of the mobile clamping assembly 3 improve the stability of the horizontal movement of the mobile clamping assembly 3.

[0032] Furthermore, the movable clamping assembly 3 includes a movable splint 301, and the two ends of the movable splint 301 are respectively slidably connected to the two sliding rods 6, and the fixed clamping assembly 4 includes a fixed splint 401, and the two ends of the fixed splint 401 are fixed to the inner wall of the box body 1, and the movable splint 301 and the fixed splint 401 are respectively connected with one or more test tube buckles 302 / 402 for clamping test tubes through a rotating shaft, and the test tube buckles 302 / 402 are arranged along the length direction of the movable splint 301 and the fixed splint 401, and the test tube buckles 302 / 402 on the movable splint 301 and the fixed splint 401 correspond one to one. The test tube buckle 302 / 402 is in a semicircular shape, and the opening directions of the test tube buckle 302 / 402 on the movable splint 301 and the fixed splint 401 are opposite, and the test tube for collecting water samples is fixed in the test tube buckle 302 / 402 of the movable splint 301 and the fixed splint 401; the test tube buckle 302 / 402 is connected to the movable splint 301 and the fixed splint 401 through a rotating shaft, so that the test tube buckle 302 / 402 can rotate a certain angle relative to the movable splint 301 and the fixed splint 401. When the water sample storage box is placed on an inclined ground, the test tube fixed in the test tube buckle 302 / 402 can be rotated to a vertical position with the test tube buckle 302 / 402, thereby reducing the possibility of spillage.

[0033] In one embodiment, both ends of the movable splint 301 and the fixed splint 401 are respectively provided with through holes, the aperture of which is slightly larger than the cross-section of the slide bar 6, and the slide bar 6 passes through the through holes on the movable splint 301 and the fixed splint 401 in sequence, and both ends of the fixed splint 401 are also fixed on the inner wall of the water sample storage box, so that the movable splint 301 can move smoothly on the slide bar 6.

[0034] Furthermore, the test tube holder 2 is provided with one or more test tube slots 201, and the test tube slots 201 correspond one-to-one with the test tube buckles 302 / 402 on the fixing clamp 401. Each test tube slot 201 is adapted to the size of the test tube, further improving the stability of the test tube fixation. The test tube slots 201 are arranged below the test tube buckles 302 / 402 on the fixing clamp 401, and correspond one-to-one, so that the test tube remains perpendicular to the test tube slots 201.

[0035] Preferably, the inner wall of the test tube slot 201 is provided with a plurality of grooves 2011, and the plurality of grooves 2011 are arranged circumferentially; a first elastic connector 2012 is also provided, one end of the first elastic connector 2012 is connected to the bottom of the groove 2011, and the other end is connected to a clamping block 2013, and the clamping block 2013 is arranged outside the groove 2011. When the test tube is placed in the test tube slot 201, it abuts against the clamping block 2013, so that the first elastic connector 2012 contracts, and the test tube is fixed by the resilience of the first elastic connector 2012. More preferably, the contact surface of the clamping block 2013 and the test tube is an arc surface that is concave toward the first elastic connector 2012, so that it fits more closely with the outer wall of the test tube, thereby improving its stability in clamping the test tube.

[0036] In one embodiment, if Figure 4 As shown, there are two grooves 2011 , and the two grooves 2011 are symmetrically arranged relative to the axis of the test tube slot 201 .

[0037] In another embodiment, if Figure 5 As described above, there are three grooves 2011 , which are equidistantly arranged along the inner wall of the test tube slot 201 .

[0038] The water sample storage box also includes a support rod 7 and a first telescopic rod 8. The support rod 7 is fixed to the bottom of the box body 1, and its upper end is rotatably connected to the test tube holder 2 on the central axis of the test tube holder 2 through a rotating shaft. The first telescopic rod 8 includes at least two rods, which are respectively arranged on the left and right sides of the test tube holder 2, and its upper end is connected to the test tube holder 2, and the lower end is fixed to the bottom of the box body 1. The support rod 7 supports the test tube holder 2, and is connected to the test tube holder 2 through a rotating shaft, so that the test tube holder 2 can rotate relative to the support rod 7, so that when the water sample storage box is placed on an inclined ground, the test tube holder 2 can rotate a certain angle, so that the test tube fixed thereon remains in a vertical state; the first telescopic rod 8 has a certain buffering and supporting effect on the lifting and lowering of the two sides of the test tube holder 2, thereby improving the swing stability of the test tube holder 2 and preventing the water sample in the test tube from shaking. In this embodiment, the support rods 7 include two support rods 7 , which are respectively arranged in front of and behind the symmetry center of the test tube fixing seat 2 , and are symmetrically arranged to maintain the balance of the test tube fixing seat 2 .

[0039] In the water sample storage box, a top pressure component 9 is also provided on the top cover of the box body 1. The lower end of the top pressure component 9 abuts against the top of the test tube clamped in the movable clamping component 3 and the fixed clamping component 4, fixes the test tube for collecting water samples in the longitudinal direction, and further improves the stability of the test tube fixation.

[0040] In the water sample storage box, the top pressure assembly 9 includes a second elastic connector 901, a second telescopic rod 902, a pressing plate 903 and an elastic gasket 904. The second elastic connector 901 includes one or more, one end of which is fixed to the bottom of the top cover and the other end is connected to the upper surface of the pressing plate 903. The second telescopic rod 902 includes at least two, which are respectively arranged on the left and right sides of the pressing plate 903, the lower end of which is connected to the pressing plate 903, and the upper end is fixed to the bottom of the top cover; the elastic gasket 904 is fixed to the bottom of the pressing plate 903, covering the contact area between the pressing plate 903 and the test tube clamped in the mobile clamping assembly 3 and the fixed clamping assembly 4. In this embodiment, the elastic gasket 904 is a sponge block, so that when the top pressure assembly 9 contacts the top of the test tube, it plays a certain protective role on the top of the test tube. The second elastic connector 901 is a spring, and its resilience makes the sponge block abut against the top of the test tube, thereby fixing the test tube. The second telescopic rod 902 has a certain buffering effect on the contraction and rebound of the second elastic connecting member 901, further protecting the top of the test tube.

[0041] Furthermore, a counterweight 10 is connected to the center of the bottom of the test tube holder 2 through a rope, and the counterweight 10 is covered with a counterweight 10 protective shell, and the counterweight 10 protective shell is fixed to the bottom surface of the test tube holder 2. The counterweight 10 can keep the test tube holder 2 in a horizontal state when the water sample storage box is placed on an uneven ground, thereby ensuring that the test tube fixed thereon will not tilt. The counterweight 10 protective shell can prevent the counterweight 10 from being worn.

[0042] In the water sample storage box, one end of the adjusting screw 5 passes through the rear side wall of the box body 1 and the movable clamping assembly 3 and the fixed clamping assembly 4, and is connected to the front side wall of the box body 1 through a bearing body, and the other end is placed outside the box body 1 and is sleeved with an adjusting hand wheel 12; it is convenient to adjust the movable clamping assembly 3. Preferably, the adjusting screw 5 passes through the center of the length direction of the movable clamping plate 301 to make its movement more stable. A through hole is provided in the center of the length direction of the fixed clamping plate 401, and the aperture of the through hole is larger than the outer diameter of the adjusting screw 5, and the adjusting screw 5 passes through the through hole; not only can the fixed clamping plate 401 and the movable clamping plate 301 be kept on the same horizontal line, so that the test tube buckle 302 / 402 arranged thereon is kept on the same horizontal line, improving the clamping stability, but also the fixed clamping plate 401 will not affect the rotation of the adjusting screw 5.

[0043] When using the water sample storage box, first open the box cover of the box body 1, then insert the bottom end of the test tube containing the water sample into the test tube slot on the test tube fixing seat 2, the outer wall of the test tube will squeeze the clamping block 2013 in the groove 2011 of the inner wall of the test tube slot 201, and when the test tube is placed in the test tube slot 201, the clamping block 2013 can compress and clamp the outer wall of the test tube under the squeezing action of the first elastic connector 2012. After the lower end of the test tube is fixed, the adjusting screw 5 is rotated, and the adjusting screw 5 drives the movable clamp 301 to move through the threaded connection, and the movable clamp 301 moves horizontally along the slide bar 6 toward the fixed clamp 401. When the distance between the movable clamp 301 and the fixed clamp 401 becomes smaller, the corresponding test tube buckles 302 / 402 on the movable clamp 301 and the fixed clamp 401 clamp and fix the outer wall of the upper end of the test tube. After the test tube is fixed, the top cover of the box body 1 is closed, and the bottom of the box cover is pressed downwardly toward the inside of the box body 1 through the pressing plate 903 connected by the second telescopic rod 902. The second elastic connecting member 901 connected between the pressing plate 903 and the box body 1 can squeeze the pressing plate 903 by compression. When the pressing plate 903 is squeezed, the sponge block under the pressing plate 903 can press the upper end of the test tube fixed inside the box body 1 as a whole, so that the test tube is fixed more stably. When the box body 1 needs to be moved and placed on some uneven ground, the counterweight block 10 at the bottom of the test tube fixing seat 2 will always remain in a vertical state due to the action of gravity, so that the test tube fixing seat 2 can rotate by itself through the rotating shaft to maintain a horizontal state, so that the test tube inserted on the test tube fixing seat 2 is always in a vertical state, avoiding the box body 1 from tilting and causing the test tube containing the water sample to fall over. When the test tube holder 2 is adjusted, the first telescopic rod 8 at its bottom can cooperate with the rotation of the test tube holder 2 by telescoping, and can play an auxiliary supporting role after the test tube holder 2 is stabilized. At the same time, the test tube buckle 302 / 402 fixed on the upper part of the test tube can also be rotated on the movable clamp 301 and the fixed clamp 401 through the rotating shaft to cooperate with the position adjustment of the test tube holder 2, thereby completing a series of tasks.

[0044] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A water sample storage box, comprising a box body, characterized in that: The box body is provided with a test tube fixing seat, one or more horizontally arranged clamping assemblies for fixing the test tube for collecting water samples, the test tube fixing seat is arranged below the clamping assembly, and is used to fix the lower part of the test tube for collecting water samples, the clamping assembly includes a mobile clamping assembly and a fixed clamping assembly, and the mobile clamping assembly in each clamping assembly can be close to or away from the fixed clamping assembly in the horizontal direction; It also includes an adjusting screw and sliding rods respectively arranged on the left and right sides of the box body, wherein the adjusting screw is perpendicular to the mobile clamping assembly and is threadedly connected with the mobile clamping assembly to drive the mobile clamping assembly to approach or move away from the fixed clamping assembly in the horizontal direction, and the two ends of the mobile clamping assembly are respectively slidably connected with the two sliding rods; The movable clamping assembly comprises a movable clamping plate, the two ends of which are respectively slidably connected to the two sliding rods, the fixed clamping assembly comprises a fixed clamping plate, the two ends of which are fixed to the inner wall of the box body, the movable clamping plate and the fixed clamping plate are respectively connected with one or more test tube buckles for clamping the test tubes through a rotating shaft, the test tube buckles are arranged along the length direction of the movable clamping plate and the fixed clamping plate, and the test tube buckles on the movable clamping plate and the fixed clamping plate correspond to each other one by one; It also includes a support rod and a first telescopic rod, wherein the support rod is fixed to the bottom of the box, and the upper end of the support rod is rotatably connected to the test tube fixing seat on the central axis of the test tube fixing seat through a rotating shaft, and the first telescopic rod includes at least two rods, which are respectively arranged on the left and right sides of the test tube fixing seat, and the upper ends of the first telescopic rods are connected to the test tube fixing seat, and the lower ends are fixed to the bottom of the box; A counterweight is connected to the center of the bottom of the test tube fixing seat through a rope, and a counterweight protective shell is provided on the outer shell of the counterweight, and the counterweight protective shell is fixed on the bottom surface of the test tube fixing seat.

2. The water sample storage box according to claim 1, characterized in that: The test tube fixing seat is provided with one or more test tube slots, and the test tube slots correspond one to one with the test tube buckles on the fixing splint.

3. The water sample storage box according to claim 2, characterized in that: The inner wall of the test tube slot is provided with a plurality of grooves, which are arranged circumferentially; a first elastic connector is also provided, one end of which is connected to the bottom of the groove, and the other end is connected to a clamping block, which is arranged outside the groove.

4. The water sample storage box according to claim 1, characterized in that: A pressing assembly is also provided on the top cover of the box body, and the lower end of the pressing assembly abuts against the top of the test tube clamped by the movable clamping assembly and the fixed clamping assembly.

5. The water sample storage box according to claim 4, characterized in that: The top pressing assembly includes a second elastic connecting member, a second telescopic rod, a pressing plate and an elastic gasket. The second elastic connecting member includes one or more, one end of which is fixed to the bottom of the top cover and the other end is connected to the upper surface of the pressing plate. The second telescopic rod includes at least two, which are respectively arranged on the left and right sides of the pressing plate, the lower ends of which are connected to the pressing plate and the upper ends are fixed to the bottom of the top cover; the elastic gasket is fixed to the bottom of the pressing plate, covering the contact area between the pressing plate and the test tube clamped in the dynamic clamping assembly and the fixed clamping assembly.

6. The water sample storage box according to claim 1, characterized in that: One end of the adjusting screw passes through the rear side wall of the box body and the movable clamping assembly and the fixed clamping assembly, and is connected to the front side wall of the box body through a bearing body, and the other end is placed outside the box body and is sleeved with an adjusting hand wheel.