Underground water environment detection fixed-depth sampling device

Abstract

The utility model discloses an underground water environment detection fixed-depth sampling device which comprises a top plate, the top of the top plate is connected with a traction rope, the top of the top plate is fixedly provided with a stepping gear motor, the bottom of the top plate is fixedly connected with a bottom plate through a connecting pipe, and a plurality of sampling barrels are detachably installed between the top plate and the bottom plate. Bosses are integrally formed at the bottom end of the sampling barrel, positioning holes matched with the bosses are formed in the bottom plate in a penetrating mode, and the bosses are located in the corresponding positioning holes; by arranging the stepping gear motor, the rotating shaft, the water pump, the plurality of sampling barrels and the like, after the device sinks to a required depth, the stepping gear motor is started, and the water outlet of the water pump is aligned with the first one-way valve of one sampling barrel, so that underground water at the depth can be pumped into the sampling barrel, and air in the sampling barrel can be discharged through the second one-way valve; operation is simple, sampling of underground water at multiple depths can be completed through one-time throwing, and using is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to underground water sampling technology field, concretely is a kind of underground water environment detection fixed depth sampling device. BACKGROUND

[0002] In the process of detecting underground water environment, it is usually necessary to sample underground water.

[0003] Through the retrieval, the patent with announcement number CN217586460U discloses a kind of underground water environment detection fixed depth sampling device, it can be realized accurate control connecting rope downward distance by being equipped with driving wheel, driven wheel and transmission assembly and other structures, in turn, it can be realized that the distance of sampling cylinder is controlled to move downward, in turn, it can be realized that sampling cylinder is moved to the depth required, by being equipped with control valve and pull rope mechanism, it can be realized that water does not enter into sampling cylinder inside in the process that sampling cylinder sinks inside water body, until sampling cylinder moves to the depth required, control valve is opened by pull rope mechanism, the water body of the depth required to be sampled can be entered into sampling cylinder inside, in turn, it can be avoided that the water body of remaining depth enters into sampling cylinder inside.

[0004] Although the above scheme can sample the underground water of the depth required more accurately, each time sampling cylinder is launched, only single depth sampling can be carried out, and in actual work, underground water is often sampled at multiple different depths, therefore, the scheme needs to launch multiple sampling cylinders repeatedly to meet sampling demand, and the limitation of use is large, and it needs to be improved. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of underground water environment detection fixed depth sampling device to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model provides a kind of groundwater environment detection depth sampling device, including top plate, the top of the top plate is connected with traction rope, the top of the top plate is fixedly installed with step-down motor, the bottom of the top plate is fixedly connected with bottom plate by connecting pipe, a plurality of sampling cylinders are detachably installed between the top plate and bottom plate, the bottom end of the sampling cylinder is integrally formed with boss, the bottom plate is provided with the positioning hole matched with boss, the boss is located in corresponding positioning hole, and the bottom surface of boss is flush with the bottom surface of bottom plate, the top end opening of the sampling cylinder is detachably sealed with plug, the top of the plug is fixedly provided with second check valve, the inner wall of the bottom of the boss is fixedly provided with first check valve, the connecting pipe is rotatably provided with rotating shaft, the top end of the rotating shaft is fixedly connected with the output shaft of step-down motor, the bottom end of the rotating shaft is fixedly connected with water pump after penetrating through bottom plate, the water outlet end of the water pump is embedded with first sealing ring, the first sealing ring is attached to the bottom of boss, and the first check valve is located on the movement path of first sealing ring.

[0008] As a further scheme of the utility model: the bottom of the boss is rotatably connected with cover plate through pin shaft, the top surface of the cover plate is embedded with second sealing ring at the corresponding position of first check valve, the bottom of the boss is fixedly connected with tension spring, and one end of the tension spring is connected with cover plate, the bottom of the boss is fixedly provided with baffle on one side of cover plate, when the sidewall of cover plate abuts against baffle, the second sealing ring is located directly below first check valve.

[0009] As a further scheme of the utility model: the top of the top plate and the corresponding position of each plug are rotatably connected with pressing plate through thread hole.

[0010] As a further scheme of the utility model: the outer wall of the connecting pipe between the top plate and the bottom plate is fixedly sleeved with retainer, the outer wall of the retainer is provided with recess at the corresponding position of each sampling cylinder, and the inner diameter of the recess is matched with the outer diameter of the sampling cylinder.

[0011] As a further scheme of the utility model: the bottom of the bottom plate is fixedly connected with a plurality of supporting legs, and the plurality of supporting legs are commonly connected with counterweight through lifting rope.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a kind of groundwater environment detection depth sampling device, including top plate, the top of the top plate is connected with traction rope, the top of the top plate is fixedly installed with step-down motor, the bottom of the top plate is fixedly connected with bottom plate by connecting pipe, a plurality of sampling cylinders are detachably installed between the top plate and bottom plate, the bottom end of the sampling cylinder is integrally formed with boss, the bottom plate is provided with the positioning hole matched with boss, the boss is located in corresponding positioning hole, and the bottom surface of boss is flush with the bottom surface of bottom plate, the top end opening of the sampling cylinder is detachably sealed with plug, the top of the plug is fixedly provided with second check valve, the inner wall of the bottom of the boss is fixedly provided with first check valve, the connecting pipe is rotatably provided with rotating shaft, the top end of the rotating shaft is fixedly connected with the output shaft of step-down motor, the bottom end of the rotating shaft is fixedly connected with water pump after penetrating through bottom plate, the water outlet end of the water pump is embedded with first sealing ring, the first sealing ring is attached to the bottom of boss, and the first check valve is located on the movement path of first sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of a fixed-depth sampling device for groundwater environment detection.

[0015] Figure 2 for Figure 1 A partial enlarged view of .

[0016] Figure 3 This is a schematic diagram of the bottom structure of a bottom plate in a fixed-depth sampling device for groundwater environment detection.

[0017] Figure 4 This is a schematic diagram of the structure of a retaining frame in a fixed-depth sampling device for groundwater environment detection.

[0018] Among them, the top plate 1, the traction rope 2, the stepping reduction motor 3, the connecting pipe 4, the bottom plate 5, the rotating shaft 6, the water pump 7, the first sealing ring 8, the sampling tube 9, the boss 10, the first one-way valve 11, the blocking cover 12, the second one-way valve 13, the hand-tightening bolt 14, the pressure plate 15, the cover plate 16, the second sealing ring 17, the tension spring 18, the baffle 19, the positioning hole 20, the retaining frame 21, the groove 22, the support leg 23, the lifting rope 24, and the counterweight 25. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0021] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation as described in the specification. Therefore, it should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood to indicate or imply relative importance or imply the number of indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features.

[0023] Please refer to Figures 1-4 The utility model discloses an underground water environment detection depth sampling device, including the top plate 1, the top of top plate 1 is connected with the tow rope 2, waterproof step -by -step reduction motor 3 is fixedly installed at the top of top plate 1, the bottom of top plate 1 is fixedly connected with the bottom plate 5 through the connecting pipe 4, a plurality of sampling cylinders 9 are detachably installed between top plate 1 and bottom plate 5, the bottom end of sampling cylinder 9 is integrally formed with the boss 10, the positioning hole 20 that is matched with boss 10 is arranged through on the bottom plate 5, the boss 10 is located in corresponding positioning hole 20, and the bottom surface of boss 10 is flush with the bottom surface of bottom plate 5, the top end opening of sampling cylinder 9 is detachably sealedly connected with the plug 12, the second check valve 13 is fixedly arranged through on the top of plug 12, the first check valve 11 is fixedly arranged through on the inner wall of the bottom of boss 10, the rotating shaft 6 is rotatably arranged through in the connecting pipe 4, the output shaft of step -by -step reduction motor 3 is fixedly connected with the top end of rotating shaft 6, the water pump 7 is fixedly connected after the bottom end of rotating shaft 6 penetrates out bottom plate 5, the first sealing ring 8 is embedded in the water outlet end of water pump 7, the first sealing ring 8 is attached to the bottom of boss 10, and the first check valve 11 is located on the movement path of first sealing ring 8.

[0024] The utility model discloses a kind of underground water environment detection depth sampling devices, including the top plate 1, the top of top plate 1 is connected with the tow rope 2, waterproof step -by -step reduction motor 3 is fixedly installed at the top of top plate 1, the bottom of top plate 1 is fixedly connected with the bottom plate 5 through the connecting pipe 4, a plurality of sampling cylinders 9 are detachably installed between top plate 1 and bottom plate 5, the bottom end of sampling cylinder 9 is integrally formed with the boss 10, the positioning hole 20 that is matched with boss 10 is arranged through on the bottom plate 5, the boss 10 is located in corresponding positioning hole 20, and the bottom surface of boss 10 is flush with the bottom surface of bottom plate 5, the top end opening of sampling cylinder 9 is detachably sealedly connected with the plug 12, the second check valve 13 is fixedly arranged through on the top of plug 12, the first check valve 11 is fixedly arranged through on the inner wall of the bottom of boss 10, the rotating shaft 6 is rotatably arranged through in the connecting pipe 4, the output shaft of step -by -step reduction motor 3 is fixedly connected with the top end of rotating shaft 6, the water pump 7 is fixedly connected after the bottom end of rotating shaft 6 penetrates out bottom plate 5, the first sealing ring 8 is embedded in the water outlet end of water pump 7, the first sealing ring 8 is attached to the bottom of boss 10, and the first check valve 11 is located on the movement path of first sealing ring 8.

[0025] Specifically combined Figures 1-3In an embodiment of the utility model, the bottom of boss 10 all is connected with the cover plate 16 through the pin shaft rotation, the top surface of cover plate 16 and the corresponding place of first check valve 11 all are embedded with second sealing ring 17, the bottom of boss 10 is fixedly connected with tension spring 18, and one end of tension spring 18 is connected with cover plate 16, the bottom of boss 10 is fixedly arranged with baffle 19 on one side of cover plate 16, when the sidewall of cover plate 16 is in abutment with baffle 19, second sealing ring 17 is located directly below first check valve 11.

[0026] Through the setting of tension spring 18 and baffle 19, in normal state, baffle 19 will be directly below the corresponding first check valve 11, to seal the water inlet end of first check valve 11 with second sealing ring 17, so that the device will not cause the direct entry of groundwater into sampling cylinder 9 from first check valve 11 during the diving process due to the internal and external pressure difference of sampling cylinder 9, when sampling is needed, start stepper motor 3 to drive water pump 7 to rotate, and the water outlet of water pump 7 will push baffle 19 to deflect, so that the water outlet of water pump 7 can be accurately aligned with first check valve 11.

[0027] Specifically combined Figure 1 In an embodiment of the utility model, the top of top plate 1 and the corresponding place of each plug cover 12 all are cooperated with hand screw bolt 14 through threaded hole, the bottom end of hand screw bolt 14 is rotatably connected with pressure plate 15.

[0028] Operation hand screw bolt 14 drives up and down, which can lock or unlock sampling cylinder 9 between top plate 1 and bottom plate 5, so as to facilitate the disassembly and assembly of sampling cylinder 9.

[0029] Specifically combined Figure 1 And Figure 4 In an embodiment of the utility model, the outer wall of connecting pipe 4 between top plate 1 and bottom plate 5 is fixedly sleeved with retainer 21, the outer wall of retainer 21 and the corresponding place of each sampling cylinder 9 are all provided with groove 22, and the inner diameter of groove 22 is matched with the outer diameter of sampling cylinder 9. Through the setting of retainer 21 and groove 22, the stability of sampling cylinder 9 installation can be improved.

[0030] Specifically combined Figure 1 In an embodiment of the utility model, the bottom of bottom plate 5 is fixedly connected with a plurality of supporting legs 23, and the plurality of supporting legs 23 are commonly connected with counterweight 25 through lifting rope 24, so as to facilitate the sinking of the device in water.

[0031] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A groundwater environment detection and fixed depth sampling device, characterized by: The utility model provides a kind of sampling device, including top plate (1), the top of top plate (1) is connected with traction rope (2), the top of top plate (1) is fixedly installed with step-down motor (3), the bottom of top plate (1) is fixedly connected with bottom plate (5) by connecting pipe (4), detachably installed with multiple sampling cylinders (9) between top plate (1) and bottom plate (5), the bottom end of sampling cylinder (9) is integrally formed with boss (10), the bottom plate (5) is provided with the positioning hole (20) matched with boss (10) in penetration, the boss (10) is located in corresponding positioning hole (20), and the bottom surface of boss (10) is flush with the bottom surface of bottom plate (5), and the top end opening of sampling cylinder (9) is detachably sealed with plug (12), the top of plug (12) is fixedly provided with second check valve (13) in penetration, the inner wall of the bottom of boss (10) is fixedly provided with first check valve (11) in penetration, the connecting pipe (4) is rotatably provided with rotating shaft (6) in penetration, the top end of rotating shaft (6) is fixedly connected with the output shaft of step-down motor (3), the bottom end of rotating shaft (6) is fixedly connected with water pump (7) after penetrating out bottom plate (5), the water outlet end of water pump (7) is embedded with first sealing ring (8), the first sealing ring (8) is attached with the bottom of boss (10), and the first check valve (11) is located on the movement path of first sealing ring (8).

2. The groundwater environmental detection depth-keeping sampling device according to claim 1, characterized in that: The bottom of boss (10) is rotatably connected with cover plate (16) by pin shaft, the top surface of cover plate (16) is embedded with second sealing ring (17) at corresponding position of first check valve (11), the bottom of boss (10) is fixedly connected with tension spring (18), one end of tension spring (18) is connected with cover plate (16), the bottom of boss (10) is fixedly provided with baffle (19) on one side of cover plate (16), when the side wall of cover plate (16) abuts against baffle (19), second sealing ring (17) is located directly below first check valve (11).

3. The groundwater environmental detection depth determining and sampling device according to claim 1, characterized in that: The top of top plate (1) is rotatably connected with pressure plate (15) by thread hole at corresponding position of each plug (12).

4. The groundwater environmental detection depth determining and sampling device according to claim 1, characterized in that: The outer wall of connecting pipe (4) between top plate (1) and bottom plate (5) is fixedly sleeved with retainer (21), the outer wall of retainer (21) is provided with recess (22) at corresponding position of each sampling cylinder (9), and the inner diameter of recess (22) is matched with the outer diameter of sampling cylinder (9).

5. The groundwater environmental detection depth determining and sampling device according to claim 1, characterized in that: The bottom of bottom plate (5) is fixedly connected with multiple supporting legs (23), and multiple supporting legs (23) are commonly connected with counterweight (25) by lifting rope (24).

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