Sample transfer box for water quality detection

Abstract

The utility model relates to a sample transfer box for water quality detection, which comprises a box body, a box cover and a plurality of test tube clamping mechanisms, the box body is provided with a plurality of accommodating cavities for accommodating the test tube clamping mechanisms, and the test tube clamping mechanisms are detachably arranged in the accommodating cavities of the box body. The test tube clamping mechanism comprises a clamping mechanism shell, two clamping arms movably arranged in the clamping mechanism shell, and a clamping keeping structure for keeping the clamping arms close to each other, and the clamping arms can be close to each other or far away from each other; in the non-use state, the two clamping arms are close to each other to the minimum distance under the action of the clamping and maintaining structure, and in the use state, the two clamping arms are close to each other under the action of the clamping and maintaining structure until the clamping arms are clamped on a test tube placed between the clamping arms.

Description

Technical Field

[0001] The utility model relates to a water quality sample storage tool, in particular to a sample transfer box for water quality detection. Background Art

[0002] A very important step in the water quality testing process is water sampling and sample storage and transportation after sampling. The testing work after sampling is generally carried out in the laboratory. Existing designs, such as the Chinese utility model patent with authorization publication number CN220130703U, specifically discloses a sample transfer box for water quality testing, which specifically adopts a detachable partition with a socket inside the box, and a test tube fixture is set in each socket. The main principle of the fixture is to change the distance between the two arc plates by two relatively arranged threaded rods, and clamp the test tube by the arc plate. This process requires adjusting the two threaded rods separately, and the clamping force of the arc plate on the test tube is difficult to grasp, which easily causes problems such as the test tube being clamped and broken. At the same time, the way to change the temperature inside the box is to maintain the low temperature inside the box by setting a cold source inside the box.

[0003] Therefore, it does not ensure that the sample storage temperature is basically consistent with the ambient temperature of the sample when sampling, but provides a relatively clear temperature. At the same time, it is not convenient in the process of taking and placing the test tube, the operation is relatively cumbersome, and it is also easy to cause damage to the test tube. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the test tube holding structure in the existing professional water quality detection sample device has complicated test tube taking and placing operations and is easy to cause test tube damage. In view of the above-mentioned defects of the prior art, a sample transfer box for water quality detection is provided.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A sample transport box for water quality testing is constructed, comprising a box body, a box cover and a plurality of test tube clamping mechanisms, wherein the box body is provided with a plurality of accommodating cavities for accommodating the test tube clamping mechanisms, the test tube clamping mechanisms are detachably arranged in the accommodating cavities of the box body, the test tube clamping mechanisms comprise a clamping mechanism shell, two clamping arms movably arranged inside the clamping mechanism shell and a clamping holding structure for holding the clamping arms close to each other, the two clamping arms can be close to each other or away from each other; when not in use, the two clamping arms are brought close to each other to a minimum distance under the action of the clamping holding structure, and when in use, the two clamping arms are brought close to each other under the action of the clamping holding structure until the clamping arms clamp a test tube placed between the clamping arms.

[0007] Further preferably, the clamping and holding structure is a pair of magnets, which are respectively embedded in the opposite surfaces of the two clamping arms. According to the property that the same poles of the magnets will repel and push each other away, while the different poles will attract and stick to each other, in the present technical solution, the opposite poles of the two magnets are arranged relative to each other, so that the two clamping arms receive opposite forces through magnetic force.

[0008] Further preferably, the clamping test tube clamping mechanism also includes a spreading component, the spreading component includes two lower pressure arms, each of the lower pressure arms is hingedly provided with at least two spreading arms, the two spreading arms are arranged in an "eight" shape, and one end of the spreading arm away from the lower pressure arm is hingedly connected to the clamping arm; when spreading, the lower pressure arm moves downward, so that the angle of the "eight"-shaped spreading arm is expanded, thereby increasing the distance between the two clamping arms.

[0009] Further preferably, the tops of the two lower pressure arms are fixedly connected to the pressure plate, the pressure plate is evenly provided with guide holes A, the top of the clamping arm is provided with a guide rod A corresponding to the guide hole A, the guide rod A passes through the guide hole A and forms an annular flange at the end, and a spring is mounted on the guide rod A between the pressure plate and the clamping arm, and the spring enables the pressure plate to maintain a tendency to move in a direction away from the top of the clamping arm. When expanding, the operator presses the pressure plate to control the downward movement of the lower pressure arm.

[0010] Further preferably, a clamping arm accommodating groove is opened on the inner wall of the clamping arm, and the spreading arm is hingedly connected to a pin shaft fixedly arranged on the inner side of the accommodating groove; in the natural state, the two clamping arms approach each other under the action of the clamping retaining structure, and the spreading arm between the lower pressure arm and the clamping arm is accommodated in the accommodating groove.

[0011] Further preferably, a guide hole B is provided on the clamping arm, a guide rod B is fixedly provided inside the housing of the holding mechanism, and the clamping arm is movably arranged in the housing of the clamping mechanism through the guide hole B and the guide rod B.

[0012] Further preferably, the test tube insertion end at the top of the clamping arm is flared, arc grooves are respectively provided on the opposite surfaces of the two clamping arms, and a buffer layer is fixedly provided on the inner side wall of the arc groove, and the buffer layer can be a soft material such as a rubber layer or cotton cloth.

[0013] Further preferably, the interior of the box is hollow to form a cavity, a water inlet is provided at the top of the box, a drain outlet is provided at the bottom, and both the water inlet and the drain outlet have covers. During use, in order to ensure that the environment in which the sample is located does not change significantly, the cavity is filled with water at the sampling position so that the temperature inside the box is approximately the same as the water temperature at the sampling position.

[0014] Further preferably, a support net is provided in the outer shell of the clamping mechanism near the bottom of the shell to provide longitudinal support for the test tube placed between the clamping arms.

[0015] The beneficial effects of the utility model are:

[0016] The utility model forms a cavity inside the box body, so that the cavity can be filled with water at the sampling position when in use, so that the temperature inside the box body is roughly the same as the temperature of the water at the sampling position, thereby avoiding the sudden change of the sample storage environment and affecting the water quality;

[0017] The utility model controls the clamping arms by pressing the pressure plate to separate the clamping arms. After releasing the grip, the clamping arms move toward each other under the action of the magnetic force of the magnet and the elastic force of the spring at the top of the clamping arms. Therefore, the utility model makes it easier to take and place the test tube, and it is not easy to damage the test tube in the process of forming a clamping state after placement.

[0018] The test tube insertion end at the top of the clamping arm is expanded so that the test tube can easily enter between the two clamping arms, thereby preventing test tubes of the same thickness from being difficult to enter between the upper and lower clamping arms. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0020] Figure 1 This is a three-dimensional diagram of the utility model as a whole (box cover is opened).

[0021] Figure 2 It is a cross-sectional view of the utility model as a whole.

[0022] Figure 3 It is a three-dimensional diagram of the box body of the present utility model.

[0023] Figure 4 It is a cross-sectional view of the box body of the utility model.

[0024] Figure 5 It is a three-dimensional diagram of the test tube clamping mechanism in the utility model.

[0025] Figure 6 It is a three-dimensional cross-sectional view of the test tube clamping mechanism of the present utility model.

[0026] Figure 7 It is a cross-sectional view of the test tube clamping mechanism of the present utility model.

[0027] Figure 8 It is a three-dimensional diagram of the hidden shell of the test tube clamping mechanism of the utility model. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.

[0029] The preferred embodiment of the present utility model is as follows: Figure 1-4 As shown, a sample transport box for water quality testing includes a box body 100, a box cover 200 and a plurality of test tube clamping mechanisms 300, wherein the box body 100 and the box cover 200 are fixedly connected by snaps, for example, a snap-fit ​​flange is formed on the top of the box body 100, and a snap-fit ​​groove matching the snap-fit ​​flange is formed on the inner side of the box cover 200. The box cover 200 can be fixedly connected to the box body 100 by snapping the snap-fit ​​flange into the snap-fit ​​groove. Of course, other connection methods can also be used, such as hinges.

[0030] like Figure 2-4 As shown, the box body 100 is provided with a plurality of accommodating cavities 101 for accommodating the test tube clamping mechanism, and the test tube clamping mechanism 300 is detachably arranged in the accommodating cavity 101 of the box body 100. Specifically, the accommodating cavity 101 shown is a regular quadrangular prism-shaped cavity with an opening at the top, so that the test tube clamping mechanism 300 can be inserted into the accommodating cavity 101 from the top opening.

[0031] Specifically, if Figure 2 as well as Figures 5 to 8 As shown, the test tube clamping mechanism 300 includes a clamping mechanism housing 301, two clamping arms 302 movably arranged inside the clamping mechanism housing 301, and a clamping holding structure 303 for holding the clamping arms 302 close to each other. The clamping mechanism housing 301 is a tubular structure with a square cross section, and the tubular structure matches the accommodating cavity 101. The two clamping arms 302 can be close to each other or away from each other; when not in use (i.e., a state where no test tube is placed between the clamping arms), the two clamping arms 302 are close to each other under the action of the clamping holding structure 303 until the clamping surface of the clamping arm 302 is clamped on the test tube placed between the clamping arms 302.

[0032] As a specific implementation of the above embodiment, the clamping and holding structure 303 is a magnet arranged in pairs, and the paired magnets are respectively embedded in the opposite surfaces of the two clamping arms 302. According to the properties that the same poles of the magnets will repel and push each other away, and the different poles will attract and stick to each other, in the present technical solution, the opposite poles of the two magnets are arranged relative to each other, so that a mutually attractive magnetic force is generated between the two opposite magnets, so that the two clamping arms 302 receive opposite forces through the magnetic force.

[0033] In order to more conveniently open the two clamping arms 302 so as to place the test tube between the two clamping arms 302, the above-mentioned clamping test tube clamping mechanism 300 also includes an opening component 304, and the opening component 304 includes two lower pressing arms 304a, each of which is hingedly provided with at least one group of opening arms 304b, and each group of opening arms 304b includes two opening arms 304b, and the two opening arms 304b are arranged in an eight-shaped shape. The end of the spreading arm 304b away from the lower pressure arm (hereinafter referred to as the lower end of the spreading arm) is hingedly connected to the clamping arm 302. Specifically, the end of the spreading arm 304b away from the lower pressure arm is hingedly connected to the clamping arm 302 through a pin shaft; when spreading, the lower pressure arm 304b moves downward, so that the angle of the eight-shaped spreading arm 304b is enlarged, thereby increasing the distance between the lower ends of the two spreading arms 304b, and thereby increasing the distance between the two clamping arms 304b. It should be noted that the hinged connection involved in the present utility model is a hinged connection through a pin shaft.

[0034] In order to enable the lower pressure arms 304a on both sides of the clamping arm 302 to maintain synchronous movement, the tops of the two lower pressure arms 304a are fixedly connected to the pressure plate 305, and the pressure plate 305 is evenly provided with guide holes A. The top of the clamping arm 302 is provided with a guide rod A306 corresponding to the guide hole A. The guide rod A306 passes through the guide hole A and forms an annular flange 307 at the end to prevent the pressure plate 305 from detaching from the guide rod A306. A spring 308 is mounted on the guide rod A306 between the pressure plate 305 and the support arm 302. In order to ensure that the spring 308 always maintains an upward elastic force on the pressure plate 305, the length of the spring 308 should be greater than the length of the guide rod A306, so that the spring 308 makes the pressure plate 305 maintain a tendency to move in the direction away from the top of the clamping arm 302. When the clamping arms 302 need to be spread open, the operator presses the pressing plate 305 downward by hand to control the downward movement of the lower pressing arm 304a, thereby causing the lower pressing arm 304a to move downward, thereby increasing the angle of the spread arm 304b and increasing the distance between the two clamping arms 302.

[0035] In order to minimize the influence of the lower pressure arm 304a and the expansion arm 304b on the minimum distance between the clamping arms 302, a clamping arm accommodating groove 302a is opened on the inner wall of the clamping arm 302, and the expansion arm 304b is hingedly connected to a pin fixed on the inner side of the clamping arm accommodating groove 302a; in the natural state, the two clamping arms 302 approach each other under the action of the clamping retaining structure 303, and the expansion arm 304b between the lower pressure arm 304a and the clamping arm 302 is accommodated in the clamping arm accommodating groove 302a.

[0036] Specifically, if Figure 2 , Figure 6 , Figure 7 as well as Figure 8 As shown, a guide hole B is provided on the clamping arm 302, and the guide hole B is a through hole, that is, the guide hole B passes through the inner and outer sides of the clamping arm 302, and a guide rod B309 is fixedly provided inside the holding mechanism housing 301, and the guide rod B309 is arranged horizontally. The clamping arm 302 is movably arranged in the clamping mechanism housing 301 through the guide hole B and the guide rod B309, and the clamping arm 302 can slide back along the axial direction of the guide rod B309.

[0037] In order to more easily insert the bottom of the test tube between the clamping arms 302, the test tube insertion end at the top of the clamping arm 302 can be flared, for example, it can be a funnel-shaped flared setting, or it can be a sloped flared setting, and arc grooves are respectively provided on the opposite surfaces of the two clamping arms 302 at the positions for clamping the test tube, and a buffer layer is fixedly provided on the inner side wall of the arc groove, and the buffer layer can be a rubber layer or a soft material such as cotton cloth.

[0038] In order to keep the internal temperature of the box 100 consistent with the environment or water temperature of the sampling area, the box 100 is hollowed out to form a cavity 102. The cavity 102 is closed, and a water inlet 103 is provided at the top of the box 100, and a drain port 104 is provided at the bottom. The water inlet 103 and the drain port 104 are both connected to the closed cavity 102, and the water inlet 103 and the drain port 104 are both covered. In order to ensure that the environment of the sample does not change significantly during use, the cavity 102 can be filled with water at the sampling position. Of course, the water entering the cavity 102 is water that has been filtered to remove particulate impurities, so that the internal temperature of the box 100 is roughly the same as the water temperature at the sampling position. In this way, there is relatively more water inside the cavity 102 and the temperature will not change significantly in a short period of time.

[0039] In order to prevent the bottom of the test tube from directly contacting the bottom of the accommodating cavity 101 when the test tube is placed in the clamping mechanism 300, thereby causing the test tube to break, a support net 310 is provided near the bottom of the shell in the clamping mechanism shell 301 to provide longitudinal support for the test tube placed between the clamping arms 302.

[0040] It should be understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A sample transport box for water quality testing, comprising a box body, a box cover and a plurality of test tube clamping mechanisms, characterized in that: The box body is provided with a plurality of accommodating cavities for accommodating the test tube clamping mechanism, the test tube clamping mechanism is detachably arranged in the accommodating cavity of the box body, the test tube clamping mechanism comprises a clamping mechanism shell, two clamping arms movably arranged inside the clamping mechanism shell, and a clamping and holding structure for keeping the clamping arms close to each other, the two clamping arms can be close to each other or away from each other; when not in use, the two clamping arms are brought close to each other to a minimum distance under the action of the clamping and holding structure, and when in use, the two clamping arms are brought close to each other under the action of the clamping and holding structure until the clamping arms clamp the test tube placed between the clamping arms.

2. A sample transport box for water quality testing according to claim 1, characterized in that: The clamping and holding structure is a pair of magnets, which are respectively embedded in the opposite surfaces of the two clamping arms, and the opposite poles of the two magnets are arranged opposite to each other, so that the two clamping arms receive opposite forces through magnetic force.

3. A sample transport box for water quality testing according to claim 2, characterized in that: The clamping test tube clamping mechanism also includes a spreading component, which includes two lower pressure arms, each of which is hinged with at least two spreading arms, and the two spreading arms are arranged in an "eight" shape, and one end of the spreading arm away from the lower pressure arm is hingedly connected to the clamping arm; when spreading, the lower pressure arm moves downward, so that the angle of the "eight"-shaped spreading arm is expanded, thereby increasing the distance between the two clamping arms.

4. A sample transport box for water quality testing according to claim 3, characterized in that: The tops of the two lower pressure arms are fixedly connected to the pressure plate, and guide holes A are evenly arranged on the pressure plate. The top of the clamping arm is provided with a guide rod A corresponding to the guide hole A. The guide rod A passes through the guide hole A and forms an annular flange at the end. A spring is mounted on the guide rod A between the pressure plate and the clamping arm. The spring enables the pressure plate to maintain a tendency to move away from the top of the clamping arm. When it is stretched open, the operator presses the pressure plate to control the downward movement of the lower pressure arm.

5. A sample transport box for water quality testing according to claim 4, characterized in that: A clamping arm accommodating groove is provided on the inner side wall of the clamping arm, and the spreading arm is hingedly connected to a pin shaft fixedly arranged inside the accommodating groove; in a natural state, the two clamping arms approach each other under the action of the clamping retaining structure, and the spreading arm between the pressing arm and the clamping arm is accommodated in the accommodating groove.

6. A sample transport box for water quality testing according to claim 1, characterized in that: The clamping arm is provided with a guide hole B, a guide rod B is fixedly provided inside the housing of the holding mechanism, and the clamping arm is movably arranged in the housing of the clamping mechanism through the guide hole B and the guide rod B.

7. A sample transport box for water quality testing according to claim 4 or 6, characterized in that: The test tube insertion end at the top of the clamping arm is flared, and arc grooves are respectively arranged on the opposite surfaces of the two clamping arms, and a buffer layer is fixedly arranged on the inner side wall of the arc groove.

8. A sample transport box for water quality testing according to claim 7, characterized in that: The box body is hollow inside to form a cavity, a water inlet is provided at the top of the box body, and a water outlet is provided at the bottom of the box body.

9. The sample transport box for water quality testing according to claim 1, characterized in that: A support net is provided in the outer shell of the clamping mechanism near the bottom of the shell to provide longitudinal support for the test tube placed between the clamping arms.

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