Sampler for different depths of water body

Abstract

The utility model provides a sampler for water bodies with different depths. A plurality of sampling barrels are connected to a barrel body in a sliding manner, openings are formed in the sampling barrels, pistons capable of blocking the openings are arranged in the sampling barrels in a sliding manner, the pistons slide to extract water samples, a spline shaft is connected to the barrel body in a rotating manner, and the spline shaft can drive the pistons to move at the same time. And the locking bolt is used for locking the relative sliding of the sampling barrel and the barrel body. The device is convenient to operate, the length of the sampling device can be adjusted according to the depth of a sampled water body, the height of the sampling barrel can also be adjusted, water bodies with different depths can be conveniently sampled at the same time, and the sampling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water body sampling technical field, concretely relates to a sampler of different depth of water body. BACKGROUND

[0002] Water sampling is the basic work of water environment monitoring and research, and is crucial for understanding the physical, chemical and biological characteristics of water body. Through the analysis of water samples at different depths, the concentration distribution of various pollutants in the water body, the content of nutrients, the structure of microbial community and other information can be obtained, which provides scientific basis for evaluating water quality, studying water ecosystem, formulating environmental protection policy and water resource management measures.

[0003] The patent with publication number CN 217605373 U discloses a sampling device for water quality detection capable of sampling at different depths, which comprises an aluminum extension vertical rod, an aluminum pressing plate, an aluminum piston rod, an aluminum sampling cylinder, an aluminum flow guide bottom shell, an aluminum sleeve rod, a stainless steel fine pore filter sheet and a piston block. The aluminum sampling cylinder is installed with the aluminum flow guide bottom shell at the lower end face, the aluminum flow guide bottom shell is installed with the aluminum fixed bottom cover at the annular side face lower side, the aluminum flow guide bottom shell is attached with the stainless steel fine pore filter sheet at the lower end face, the piston block is inserted into the inside lower side of the aluminum sampling cylinder, the aluminum piston rod is connected with the aluminum pressing plate at the upper end face middle position of the piston block, and the aluminum sleeve rod is inserted into the inside of the aluminum extension vertical rod.

[0004] However, it still has the following problems: 1. Each time sampling, only one specified depth can be sampled, and different depths need to be sampled repeatedly, which is not convenient to operate. 2. When sampling, the water sample in the lower bottom shell is easy to remain in the remaining position, which leads to inaccurate water sample depth during sampling. SUMMARY

[0005] In order to solve the above problems existing in the prior art, a sampler for different depths of water body is provided. The device can simultaneously sample different depths in the water body, which is convenient to operate.

[0006] The technical scheme adopted by the utility model to solve its technical problems is:

[0007] The utility model discloses a sampler for different depths of water body, including the cylinder, a plurality of sampling cylinders are slidably connected on the cylinder, the sampling cylinder is provided with the opening, the piston that can block the opening is slid in the sampling cylinder, the piston slides and can extract the water sample, the spline shaft is rotatably connected on the cylinder, the spline shaft can drive a plurality of pistons to move simultaneously, and the locking bolt that locks the relative sliding of the sampling cylinder and the cylinder is further included.

[0008] Preferably, the barrel is slidably connected with a lifting plate, the sampling barrel is connected with the lifting plate, the barrel is provided with a sliding groove for free movement of the locking bolt, and the lifting plate is provided with a first threaded hole.

[0009] Preferably, the bottom end of the piston is fixed with a screw rod, and the spline shaft can drive the screw rod to move along the length direction of the sampling barrel.

[0010] Preferably, the bottom end of the sampling barrel is rotatably connected with a pinion, the center of the pinion is provided with a second threaded hole, the screw rod is threadedly connected with the second threaded hole, the spline shaft is slidably sleeved with a gear wheel engaged with the pinion, and the gear wheel is rotatably connected with the lifting plate.

[0011] Preferably, the spline shaft is connected with a motor, the upper end of the barrel is fixed with a handle, and the handle is fixed with a switch for controlling the on-off of the motor.

[0012] Preferably, the upper end of the piston is fixed with a connecting rod, the upper end of the connecting rod is fixed with a plug, and the piston has a gap with the plug.

[0013] Preferably, the lower end of the barrel is slidably connected with an extension barrel, the spline shaft is divided into an upper spline shaft and a lower spline shaft, the lower spline shaft is rotatably connected with the extension barrel, the lower spline shaft is fixed with a slide rod, and the slide rod is slidably connected with the upper spline shaft.

[0014] Preferably, the extension barrel is fixed with two side plates, the side plates are threadedly connected with a plurality of lifting bolts, and the lifting bolts abut against the barrel after penetrating through the side plates.

[0015] Preferably, an anti-skid plate is arranged between the barrel and the locking bolt, and the anti-skid plate is provided with a through hole for free movement of the locking bolt.

[0016] Preferably, the sampling barrel and the lifting plate can be detached, the bottom end of the sampling barrel is rotatably connected with a plurality of detachment bolts, and the detachment bolts are threadedly connected with the lifting plate.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] The utility model discloses a plurality of sampling barrels are slid to the appointed position along the cylinder, and the sampling barrel is fixed on the cylinder through locking bolt, avoids the sliding when sampling, and the spline shaft and a plurality of pistons are kept connected before and after the adjustment position of the sampling barrel, makes the piston keep the power of lifting, rotates the spline shaft, makes a plurality of pistons extract water sample simultaneously, and a plurality of sampling barrels can extract water sample of different depth simultaneously, avoids the repeated water entry of single sampling barrel, improves the operation efficiency, also avoids the water flow disturbance caused by repeated water entry, and causes the inaccuracy of water sample of different depth.

[0019] The utility model discloses that the piston and sampling barrel opening shape are compatible, can make the sampling barrel inside keep sealed completely after discharging, avoids the water seepage in the sampling barrel in the water entry process, and the plug is connected through connecting rod on the piston upper end, and the plug can reseal the sampling barrel after the piston drops and extracts water sample, avoids the water seepage in the sampling barrel when discharging.

[0020] The utility model discloses setting up extension cylinder and upper and lower two part spline shaft, loosens the lifting bolt, makes the extension cylinder drop, can make the extension cylinder drive the sampling barrel on the lower spline shaft further reach deeper water level, then tightens the lifting bolt and fixes the extension cylinder, makes the sampling barrel's adaptation range wider, and the lower spline shaft and upper spline shaft sliding connection, when the extension cylinder drops, make the lower spline shaft away from the upper spline shaft, and the upper spline shaft can drive the lower spline shaft to rotate when rotating, and then make the sampling barrel connected on the lower spline shaft sample. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0022] Figure 1 It is the overall perspective drawing of the utility model;

[0023] Figure 2 It is the perspective drawing of the upper half of the utility model;

[0024] Figure 3 It is the schematic diagram of overall structure (working state one);

[0025] Figure 4 It is the schematic diagram of overall structure (working state two);

[0026] Figure 5 It is the schematic diagram of embodiment two.

[0027] EXPLANATION OF REFERENCE NUMERALS:

[0028] 1. Cylinder body; 2. Sampling cylinder; 3. Piston; 4. Locking bolt; 5. Pinion gear; 6. Screw; 7. Splined shaft; 8. Large gear; 9. Lifting plate; 10. Anti-slip plate; 11. Connecting rod; 12. Plug; 13. Extension cylinder; 14. Side plate; 15. Lifting bolt; 16. Motor; 17. Handle; 18. Switch; 19. Removal bolt; 20. Slide rod. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Example 1

[0030] like Figures 1-4 As shown, this embodiment proposes a sampler for water at different depths. Several sampling tubes 2 are slidably connected to the cylinder 1. Each sampling tube 2 has an opening. A piston 3 that can block the opening slides inside the sampling tube 2. The piston 3 can draw water samples by sliding. A spline shaft 7 is rotatably connected to the cylinder 1. The spline shaft 7 can drive several pistons 3 to move simultaneously. It also includes a locking bolt 4 to lock the relative sliding of the sampling tubes 2 and the cylinder 1.

[0031] The cylinder 1 is provided with scale lines, which are attached or engraved onto the cylinder 1.

[0032] The piston 3 is initially positioned at the upper end of the sampling cylinder 2. The shape of the piston 3 is adapted to the shape of the opening of the sampling cylinder 2. When the cylinder 1 drives the sampling cylinder 2 into the water, the piston 3 helps to ensure the sealing of the sampling cylinder 2.

[0033] The cylinder 1 is slidably connected to the lifting plate 9, the sampling cylinder 2 is connected to the lifting plate 9, the cylinder 1 has a sliding groove for the locking bolt 4 to move freely, the lifting plate 9 has a first threaded hole, and the locking bolt 4 is tightened into the first threaded hole and abuts against the cylinder 1.

[0034] One end of the lifting plate 9 is slidably connected to the inner wall of the cylinder 1, and the other end extends out of the cylinder 1 and is connected to the sampling cylinder 2. A large sliding groove is provided on the cylinder 1 for the lifting plate 9 to slide freely out of the cylinder 1.

[0035] By rotating the locking bolt 4, the locking bolt 4 and the lifting plate 9 are no longer clamped to the cylinder 1. At this time, the lifting plate 9 can be pulled to move freely along the length of the cylinder 1. After the lifting plate 9 drives the sampling cylinder 2 to a suitable position, tighten the locking bolt 4 to clamp the cylinder 1 with the locking bolt 4 and the lifting plate 9, and fix the height of the sampling cylinder 2 so that it can follow the cylinder 1 to the specified depth for sampling.

[0036] The bottom end of the piston 3 is fixed with a screw rod 6, and the spline shaft 7 can drive the screw rod 6 to move along the length direction of the sampling cylinder 2.

[0037] The spline shaft drives the screw rod 6 to move along the length direction of the sampling cylinder 2, so that the screw rod 6 pulls the piston 3 to slide, and the piston 3 extracts the water sample of the depth into the sampling cylinder 2.

[0038] In order to reduce the pressure in the sampling cylinder 2 during sampling, the bottom of the sampling cylinder 2 is provided with a one-way valve, and when the piston 3 descends, the air at the bottom of the sampling cylinder 2 is discharged from the one-way valve.

[0039] The bottom end of the sampling cylinder 2 is rotatably connected with a pinion 5, the center of the pinion 5 is provided with a second threaded hole, the screw rod 6 is threadedly connected with the second threaded hole, the spline shaft 7 is slidably sleeved with a gear wheel 8 engaged with the pinion 5, and the gear wheel 8 is rotatably connected with a lifting plate 9.

[0040] The cross-sectional shape of the piston 3 and the inner wall of the sampling cylinder 2 is oval or polygonal, the piston 3 is made of soft material such as rubber, and is pressed against the inner wall of the sampling cylinder 2 to keep sealing; or the piston 3 is provided with a groove, and the inner wall of the sampling cylinder 2 is provided with a convex strip matched with the groove, which is beneficial to the downward movement of the screw rod 6 when the second threaded hole rotates.

[0041] The gear wheel 8 can slide up and down along the spline shaft with the lifting plate 9, which is beneficial to the piston 3 to extract the water sample after the position of the sampling cylinder 2 is adjusted, and the spline shaft 7 can still drive the pinion 5 to pull the piston 3 to extract the water sample; meanwhile, a plurality of sampling cylinders 2 are connected with the spline shaft 7 at the same time, and the spline shaft 7 can drive the plurality of sampling cylinders 2 to sample at the same time, which is very convenient.

[0042] One end of the spline shaft 7 is connected with a motor 16, the upper end of the cylinder body 1 is fixed with a handle 17, the handle 17 is fixed with a switch 18 for controlling the on-off of the motor, and the cylinder body 1 has a power source for driving the motor 16 to rotate.

[0043] When the scale on the cylinder body 1 is observed to reach the specified position, the switch 18 is pressed to make the motor 16 electrified, which drives the spline shaft 7 to rotate and further drives the piston 3 to extract the water sample.

[0044] The switch 18 is a press-type spring switch, which usually consists of a press button, a spring, a fixed seat and a conductive contact. The press button is usually made of plastic or metal material, and has certain pressing performance and mechanical strength. The spring functions to automatically reset the button and ensure the elasticity of the pressing. The fixed seat is used to fix the button and the spring, and ensures that their positions do not change. The conductive contact is the key part of the circuit, and the contact is connected or disconnected by pressing the button, so as to realize the function of the switch.

[0045] The upper end of the piston 3 is fixed with a connecting rod 11, the upper end of the connecting rod 11 is fixed with a plug 12, the piston 3 has a gap with the plug 12; the diameter of the connecting rod 11 is smaller than the diameter of the opening of the sampling cylinder 2, so it will not hinder the water sample into, when the piston 3 reaches the lower end of the sampling cylinder 2, the connecting rod 11 drives the plug 12 to reach the opening position of the sampling cylinder 2, and the opening is closed, when the sampling cylinder 2 is taken out of the water surface, it is beneficial to keep the sealing of the sampling cylinder 2.

[0046] The anti-skid plate 10 is arranged between the cylinder body 1 and the locking bolt 4, and the anti-skid plate 10 is provided with a through hole for the locking bolt 4 to freely move; the anti-skid plate 10 is added between the locking bolt 4 and the cylinder body 1, which can further increase the contact area of the locking bolt 4 and the cylinder body 1, and the working surface of the anti-skid plate 10 has anti-skid lines, which further increases the friction force to prevent the locking bolt 4 from sliding.

[0047] The sampling cylinder 2 and the lifting plate 9 can be detached, the bottom end of the sampling cylinder 2 is rotatably connected with a plurality of detachable bolts 19, and the detachable bolts 19 are threadedly connected with the lifting plate 9. The sampling cylinder 2 is provided with a through hole for the detachable bolt 19 to freely move, and after the detachable bolt 19 is threadedly screwed with the lifting plate 9, the detachable bolt 19 drives the sampling cylinder 2 to be fixed with the lifting plate 9. The sampling cylinder 2 and the lifting plate 9 can be detached, so that after the sample is taken, each sampling cylinder 2 can be taken alone to process the water sample. Example two

[0048] Reference to the attached Figure 1 -attached Figure 5 The other structures are the same as those of example one, except that in this embodiment, the further increase of the sampling depth and the storage problem of the sampler are considered.

[0049] The lower end of the cylinder body 1 is slidably connected with an extension cylinder 13, the spline shaft 7 is divided into an upper spline shaft and a lower spline shaft, the upper spline shaft is rotatably connected with the cylinder body 1, the lower spline shaft is rotatably connected with the extension cylinder 13, the lower spline shaft is fixed with a slide rod 20, and the slide rod 20 is slidably connected with the upper spline shaft; pulling the extension cylinder 13 makes the extension cylinder 13 and the lower spline shaft away from the cylinder body 1, the lower spline shaft is also connected with the sampling cylinder 2, which can make the sampling cylinder 2 at the lower end of the cylinder body 1 further reach a deeper water layer for sampling.

[0050] The slide rod 20 can only slide along the axis direction of the spline shaft 7, and cannot relatively rotate with the spline shaft 7, so the spline shaft 7 can drive the lower spline shaft to synchronously rotate, so that the sampling cylinder 2 on the lower spline shaft is synchronously sampled.

[0051] The extension cylinder 13 is fixedly connected with two side plates 14, the side plates 14 are threadedly connected with a plurality of lifting bolts 15, the lifting bolts 15 abut against the cylinder body 1 after penetrating through the side plates 14. By rotating the lifting bolts 15, the two side plates 14 are disengaged from the cylinder body 1, at this time, the extension cylinder 13 and the lower spline shaft can move away from the cylinder body 1, so that the sampling range is widened, and the lifting bolts 15 are rotated again to limit the extension cylinder 13 after the movement is completed.

[0052] When the extension cylinder 13 and the cylinder body 1 are disengaged, the slide rod 20 enters the spline shaft 7, so that the length of the whole sampler is reduced, and the sampler is convenient to take, place and transport.

[0053] The specific working process is as follows:

[0054] When the shallow water body is sampled, the lifting bolt 4 is rotated to disengage the lifting plate 9 and the sampling cylinder 2 connected with the lifting plate 9 from the cylinder body 1, then the sampling cylinder 2 is adjusted to the required scale line of this sampling, and the lifting bolt 4 is tightened again to fix the lifting plate 9, and the height of the sampling cylinder 2 is adjusted in the same way.

[0055] After the adjustment is completed, the handle 17 is held by hand, the cylinder body 1 is placed into the water, the position of the cylinder body 1 is adjusted, the switch 18 is pressed to drive the motor 16 to rotate for a certain time, the motor rotates the same time each time the switch 18 is pressed once; the motor 16 drives the spline shaft 7 to rotate, the spline shaft 7 drives the large gear 8 to rotate, the large gear 8 drives the small gear 5 to rotate, when the small gear 5 rotates, the second threaded hole in the center drives the screw rod 6 to descend, and then pulls the piston 3, so that the piston 3 extracts the water sample of the depth from the opening at the upper end of the sampling cylinder 2 to the sampling cylinder 2.

[0056] With the continuous rotation of the motor 16, the piston 3 is continuously lowered by the small gear 5, the connecting rod 11 at the upper end of the piston 3 drives the plug 12 to reach the opening position of the sampling cylinder 2, and the opening is closed, and the sampling is completed.

[0057] For the problem of deep water sampling, the structure described in embodiment two is adopted, the lifting bolt 15 is adjusted to disengage the side plate 14 on the extension cylinder 13 from the cylinder body 1, at this time, the extension cylinder 13 and the cylinder body 1 can slide relative to each other, when the extension cylinder 13 drives the lower spline shaft to extend for a certain length, the lifting bolt 15 is tightened again to abut against the cylinder body 1, so that the side plate 14 and the extension cylinder 1 are locked.

[0058] It should be noted that before the extension cylinder 13 is separated from the cylinder body 1, the sampling cylinder 2 on the cylinder body 1 can be freely moved to the extension cylinder 13, so that the number of sampling cylinders on the extension cylinder 13 and the cylinder body 1 can be adjusted, and different depths can be further adapted; meanwhile, the joint between the upper spline shaft and the lower spline shaft is smoothly processed, which is beneficial to the back and forth sliding of the large gear 8 on the upper spline shaft and the lower spline shaft.

[0059] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A sampler of different depths of a water body comprising a barrel (1), characterized in that, The barrel (1) is slidably connected with several sampling barrels (2), the sampling barrel (2) is provided with an opening, the sampling barrel (2) is slidably connected with a piston (3) capable of blocking the opening, the piston (3) is slidably connected with the sampling barrel (2), the barrel (1) is rotatably connected with a spline shaft (7), the spline shaft (7) can drive several pistons (3) to move simultaneously, and the barrel (1) is rotatably connected with a spline shaft (7).

2. The water body different depth sampler according to claim 1, wherein, The barrel (1) is slidably connected with a lifting plate (9), the sampling barrel (2) is connected with the lifting plate (9), the barrel (1) is provided with a sliding groove for the free movement of the locking bolt (4), the lifting plate (9) is provided with a first threaded hole, and the locking bolt (4) is abutted on the barrel (1) after being screwed with the first threaded hole.

3. The water body different depth sampler according to claim 2, wherein, The bottom end of the piston (3) is fixedly connected with a screw rod (6), and the spline shaft (7) can drive the screw rod (6) to move along the length direction of the sampling barrel (2).

4. The water body different depth sampler according to claim 3, characterized in that, The bottom end of the sampling barrel (2) is rotatably connected with a pinion (5), the center of the pinion (5) is provided with a second threaded hole, the screw rod (6) is threadedly connected with the second threaded hole, the spline shaft (7) is slidably sleeved with a gear wheel (8) engaged with the pinion (5), and the gear wheel (8) is rotatably connected with the lifting plate (9).

5. The water body depth sampler of claim 4, wherein, The spline shaft (7) is connected with a motor (16), the upper end of the barrel (1) is fixedly connected with a handle (17), and the handle (17) is fixedly connected with a switch (18) for controlling the on-off of the motor.

6. The water body different depth sampler according to claim 1, wherein, The upper end of the piston (3) is fixedly connected with a connecting rod (11), the upper end of the connecting rod (11) is fixedly connected with a plug (12), and the piston (3) has a gap with the plug (12).

7. The water body depth sampler of claim 1, wherein, The lower end of the barrel (1) is slidably connected with an extension barrel (13), the spline shaft (7) is divided into an upper spline shaft and a lower spline shaft, the lower spline shaft is rotatably connected with the extension barrel (13), the lower spline shaft is fixedly connected with a sliding rod (20), and the sliding rod (20) is slidably connected with the upper spline shaft.

8. The water body different depth sampler according to claim 7, characterized in that, The extension barrel (13) is fixedly connected with two side plates (14), the side plates (14) are threadedly connected with several lifting bolts (15), and the lifting bolts (15) are abutted on the barrel (1) after penetrating through the side plates (14).

9. The water body different depth sampler according to claim 2, wherein, The barrel (1) and the locking bolt (4) are provided with an anti-skid plate (10), and the anti-skid plate (10) is provided with a through hole for the free movement of the locking bolt (4).

10. The water body different depth sampler according to claim 2, wherein, The sampling barrel (2) and the lifting plate (9) can be detached, the bottom end of the sampling barrel (2) is rotatably connected with several detachment bolts (19), and the detachment bolts (19) are threadedly connected with the lifting plate (9).

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