Sample adding device

Abstract

The utility model relates to the field of sample adding equipment, and discloses a sample adding device which comprises a sample adding frame, a sample adding unit and a lifter, the sample adding frame comprises a sample adding cabin defined by a top plate (11), side plates (12) and a bottom plate (13), the side plates (12) are vertically arranged on the two sides of the top plate (11), and the bottom plate (13) is arranged on the bottom plate (13). The bottom plate (13) is parallel to the top plate (11) and is movably arranged at the bottom of the side plate (12), the sample adding unit is at least partially located in the sample adding cabin so as to be capable of adding samples to sample bottles placed on the bottom plate (13), and the lifter is connected to the bottom plate (13) and can drive the bottom plate (13) to vertically lift to different height positions along the side plate (12). According to the utility model, the efficiency and the stability of manual sampling and sample adding in the experiment process are improved, the manpower is saved, and the experiment error is avoided.

Description

Technical Field

[0001] The utility model relates to the field of sample adding equipment, in particular to a sample adding device. Background Art

[0002] Currently, the bacterial culture bottle method is commonly used in oilfield produced water testing. After taking an average of one experimental sample, multiple bacterial culture bottles must be continuously loaded. Most bacterial culture bottles have sealed rubber caps that need to be pierced before loading. The existing loading method involves manually taking samples and then loading each bacterial culture bottle through the caps one by one. Because the produced water spends varying amounts of time in the sampler, this can interfere with the experimental results. Furthermore, only one group of produced water can be loaded at a time, making it impossible to conduct multiple experiments simultaneously. This results in low efficiency and a waste of manpower. Utility Model Content

[0003] The purpose of the utility model is to provide a sampling device in order to overcome the problem of low efficiency of sampling and adding during experimental detection in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a sample loading device on the one hand, which includes: a sample loading rack, a sample loading unit and a lifter, wherein the sample loading rack includes a sample loading chamber surrounded by a top plate, a side plate and a bottom plate, the side plates are vertically arranged on both sides of the top plate, the bottom plate is parallel to the top plate and movably arranged at the bottom of the side plate, the sample loading unit is at least partially located in the sample loading chamber so as to be able to load samples into a sample bottle placed on the bottom plate, and the lifter is connected to the bottom plate and can drive the bottom plate to rise and fall vertically along the side plate to different height positions.

[0005] Preferably, the sample loading rack further comprises a limiting screw located in the sample loading chamber, both ends of the limiting screw are respectively connected to the side plates, and the sample loading unit is mounted on the limiting screw.

[0006] Preferably, the sample adding unit comprises a plurality of sample adders, and the plurality of sample adders are arranged on the limiting screw at intervals along the horizontal direction.

[0007] Preferably, each of the sample injectors comprises a hollow tube, a needle and a piston, wherein the needle is arranged below the hollow tube and connected to the inner cavity of the hollow tube, and the piston is arranged in the hollow tube and is configured to be able to inject samples by sliding relative to the hollow tube.

[0008] Preferably, the loading unit further comprises a fixed plate, which is parallel to the limiting screw and arranged above the limiting screw, the hollow tube is fixed to the limiting screw, and the piston is connected to the fixed plate via a piston rod extending through the limiting screw.

[0009] Preferably, a loading rod is provided on the fixing plate, and the loading rod passes through the top plate and is exposed outside the loading chamber, so that the fixing plate can be controlled to move up and down in a vertical direction by the loading rod.

[0010] Preferably, the lifter includes a lifting screw, a threaded hole matching the lifting screw is provided on the top plate, and one end of the lifting screw passes through the threaded hole and is connected to the bottom plate.

[0011] Preferably, the lifter further comprises a hand wheel, which is arranged at the other end of the lifting screw and is configured to drive the lifting screw to rotate and lift.

[0012] Preferably, a limit block is provided on a side of the bottom plate facing the sample loading chamber, and the limit block is configured to limit the ultimate rising position of the bottom plate by the limit screw.

[0013] Preferably, there are at least two limit blocks, and at least two limit blocks are respectively arranged at both ends of the bottom plate.

[0014] Through the above technical solution, during the experiment, oilfield produced water and bacterial culture bottles are placed on the lower base plate. The sampling device controls the up and down movement of the base plate through the lifter, and the auxiliary sampling unit performs sampling and adding. This improves the efficiency and stability of manual sampling and adding during the experiment, saves manpower, and avoids experimental errors.

[0015] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the sample adding device of the utility model;

[0017] Figure 2 yes Figure 1 A partial enlarged view of middle A.

[0018] Description of Reference Numerals

[0019] 11-top plate, 12-side plate, 13-bottom plate, 14-limit screw, 15-limit block, 21-hollow tube,

[0020] 22-needle, 23-piston, 24-piston rod, 25-fixed plate, 26-sample rod, 31-lifting screw, 32-handwheel. DETAILED DESCRIPTION

[0021] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0022] The present invention provides a sample adding device, such as Figure 1 As shown, the sample loading device includes: a sample loading rack, a sample loading unit and a lifter, wherein the sample loading rack includes a sample loading chamber enclosed by a top plate 11, a side plate 12 and a bottom plate 13, the side plates 12 are vertically arranged on both sides of the top plate 11, the bottom plate 13 is parallel to the top plate 11 and movably arranged at the bottom of the side plates 12, the sample loading unit is at least partially located in the sample loading chamber so as to be able to load samples into the sample bottles placed on the bottom plate 13, and the lifter is connected to the bottom plate 13 and can drive the bottom plate 13 to rise and fall vertically along the side plates 12 to different height positions.

[0023] In the present invention, the bottom plate 13 driven by the lifter to be raised and lowered is used to place sample bottles, such as oilfield produced water sampling bottles or bacterial culture bottles for experiments. When the sampling unit, which is at least partially located in the sampling cabin, is sampling the bacterial culture bottles or the oilfield produced water sampling bottles, the lifter drives the bottom plate 13 to rise vertically along the side plate 12. After rising to a height where the sampling unit can sample or take samples from the sample bottles, the sampling unit performs the sample or take samples. After completion, the lifter drives the bottom plate 13 to descend vertically along the side plate 12. The staff removes the sample bottle from the sampling cabin, and the sample or take samples from the sample bottle is completed. The sampling device can assist the sampling unit in sampling and adding samples by controlling the lifter, thereby improving the efficiency and stability of manual sampling and adding samples during the experiment, saving the staff's manpower, simplifying the operation, and avoiding experimental errors.

[0024] In one embodiment of the present invention, to limit the maximum position to which the bottom plate 13 can rise, and to facilitate the sample loading unit being able to directly load or remove samples from the sample bottle when the bottom plate 13 rises to the maximum position, the sample loading rack further includes a limit screw 14 located in the sample loading chamber. The limit screw 14 can limit the maximum position to which the bottom plate 13 can rise in the sample loading chamber. The two ends of the limit screw 14 are respectively connected to the side plate 12, and the sample loading unit is mounted on the limit screw 14.

[0025] In order to improve the efficiency of manual sampling and adding samples during the experiment, the adding unit includes multiple samplers to simultaneously sample and add samples to multiple sample bottles. The multiple samplers are arranged on the limiting screw 14 at intervals along the horizontal direction.

[0026] Most of the existing bacterial culture bottles are culture bottles with sealing rubber caps, and the rubber caps need to be pierced when adding samples. Therefore, as a preferred embodiment, each of the sample injectors includes a hollow tube 21, a needle 22 and a piston 23. Figure 2As shown, the needle 22 can meet the need of piercing a rubber bottle cap. The needle 22 is arranged below the hollow tube 21 and communicates with the inner cavity of the hollow tube 21. The piston 23 is disposed in the hollow tube 21 and is configured to slide relative to the hollow tube 21 to add samples. When sampling, the needle 22 is inserted into the sampling bottle, and the piston 23 moves upward to draw the material to be sampled from the sample bottle into the hollow tube 21 through the needle 22. When adding samples, the needle 22 is inserted into the bacterial culture bottle, and the piston 23 moves downward to press the material in the hollow tube 21 into the bacterial culture bottle through the needle 22.

[0027] In one embodiment, the sample loading unit further includes a fixed plate 25, which is parallel to and disposed above the limiting screw 14. The hollow tube 21 is fixed to the limiting screw 14, and the piston 23 is connected to the fixed plate 25 via a piston rod 24 extending through the limiting screw 14. By controlling the lifting and lowering of the fixed plate 25, the loading or sampling of each of the samplers can be controlled simultaneously.

[0028] To facilitate operation by staff, a loading rod 26 is provided on the fixed plate 25 . The loading rod 26 passes through the top plate 11 and is exposed outside the loading chamber, so that the fixed plate 25 can be controlled to move up and down in the vertical direction by the loading rod 26 .

[0029] In the present invention, the lifter can be of any suitable form, such as a chain or screw. To ensure stability during the lifting of the bottom plate 13, the lifter preferably includes a lifting screw 31. A threaded hole matching the lifting screw 31 is formed on the top plate 11, and one end of the lifting screw 31 passes through the threaded hole and is connected to the bottom plate 13.

[0030] To facilitate operator control, the lifter further includes a handwheel 32, which is disposed at the other end of the lifting screw 31 and is configured to drive the lifting screw 31 to rotate and ascend. When controlling the raising or lowering of the base plate 13, rotating the handwheel 32 drives the lifting screw 31 to rotate and ascend, and the base plate 13 rises or descends along with the lifting screw 31.

[0031] In addition, a limit block 15 is provided on a side of the bottom plate 13 facing the sample loading chamber. The limit block 15 is configured to limit the ultimate rising position of the bottom plate 13 by the limit screw 14 .

[0032] In order to ensure that the bottom plate 13 maintains balance when being limited, there are at least two limiting blocks 15 , and at least two limiting blocks 15 are respectively arranged at both ends of the bottom plate 13 .

[0033] To further explain the present invention, the following describes the sampling and adding process of an embodiment of the present invention:

[0034] When sampling, first place the sampling bottle containing oilfield produced water on the bottom plate 13, turn the hand wheel 32, and drive the bottom plate 13 to rise to the limit height of the limit screw 14. At this time, the needle 22 is inserted into the sampling bottle containing oilfield produced water. The staff pulls the sampling rod 26 upward to allow the oilfield produced water to be sucked into the hollow tube 21 through the needle 22. Then, turn the hand wheel 32 to drive the bottom plate 13 down to its original position, take out the sampling bottle, and complete the sampling.

[0035] When adding samples, first place the bacterial culture bottle on the bottom plate 13, turn the hand wheel 32, and drive the bottom plate 13 to rise to the limit height of the limit screw 14. At this time, the needle 22 is inserted into the culture bottle with a sealing rubber cover. The staff pushes the sample addition rod 26 downward so that the oilfield produced water sampled in the hollow tube 21 is pressed into the bacterial culture bottle through the needle 22. Then, turn the hand wheel 32 to drive the bottom plate 13 to descend to its original position, take out the bacterial culture bottle, and complete the sample addition.

[0036] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0038] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A sample adding device, characterized in that: The sample loading device comprises: a sample loading rack, a sample loading unit and a lifter, wherein the sample loading rack comprises a sample loading chamber enclosed by a top plate (11), a side plate (12) and a bottom plate (13), the side plates (12) are vertically arranged on both sides of the top plate (11), the bottom plate (13) is parallel to the top plate (11) and movably arranged at the bottom of the side plates (12), the sample loading unit is at least partially located in the sample loading chamber so as to be able to load samples into a sample bottle placed on the bottom plate (13), and the lifter is connected to the bottom plate (13) and can drive the bottom plate (13) to be vertically lifted and lowered to different height positions along the side plates (12).

2. The sample adding device according to claim 1, characterized in that The sample loading rack further comprises a limiting screw (14) located in the sample loading chamber, both ends of the limiting screw (14) are respectively connected to the side plates (12), and the sample loading unit is mounted on the limiting screw (14).

3. The sample adding device according to claim 2, characterized in that The sample adding unit comprises a plurality of sample adders, and the plurality of sample adders are arranged on the limiting lead screw (14) at intervals along the horizontal direction.

4. The sample adding device according to claim 3, characterized in that Each of the sample injectors comprises a hollow tube (21), a needle (22) and a piston (23), wherein the needle (22) is arranged below the hollow tube (21) and communicates with the inner cavity of the hollow tube (21), and the piston (23) is arranged in the hollow tube (21) and is configured to be able to inject samples by sliding relative to the hollow tube (21).

5. The sample adding device according to claim 4, characterized in that The sample loading unit further includes a fixed plate (25), which is parallel to the limiting screw (14) and arranged above the limiting screw (14), the hollow tube (21) is fixed to the limiting screw (14), and the piston (23) is connected to the fixed plate (25) via a piston rod (24) extending through the limiting screw (14).

6. The sample adding device according to claim 5, characterized in that The fixing plate (25) is provided with a sample loading rod (26), which passes through the top plate (11) and is exposed outside the sample loading chamber, so that the fixing plate (25) can be controlled to move up and down in a vertical direction through the sample loading rod (26).

7. The sample adding device according to claim 2, characterized in that The lifter comprises a lifting screw (31), a threaded hole matching the lifting screw (31) is provided on the top plate (11), and one end of the lifting screw (31) passes through the threaded hole and is connected to the bottom plate (13).

8. The sample adding device according to claim 7, characterized in that The lifter further comprises a hand wheel (32), which is arranged at the other end of the lifting screw (31) and is configured to drive the lifting screw (31) to rotate and lift.

9. The sample adding device according to any one of claims 2 to 8, characterized in that: A limit block (15) is provided on one side of the bottom plate (13) facing the sample loading chamber, and the limit block (15) is configured to limit the ultimate rising position of the bottom plate (13) by the limit screw (14).

10. The sample adding device according to claim 9, characterized in that: There are at least two limit blocks (15), and at least two limit blocks (15) are respectively arranged at two ends of the bottom plate (13).

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