Depth-adjustable surface water quality detection sampling equipment

Abstract

The utility model discloses depth-adjustable surface water quality detecting and sampling equipment which comprises a handheld frame, a sampling device and a water quality detecting and sampling device, wherein the handheld frame is used for being held by a hand; the winch is rotationally connected to the handheld frame; the pull rope is wound on the winch, and the outer wall of the pull rope is provided with scales; a water inlet and a water outlet are formed in the side wall of the lower end; the lifting ring is arranged on the sampling barrel and is fixed with the pull rope; the switching mechanism is used for controlling the opening and closing of the water inlet. The utility model has the following advantages and effects: by arranging the pull rope to hoist the sampling barrel, the sampling of water at different depths can be realized, and meanwhile, the scales are arranged on the pull rope, so that the accurate control of the unwinding amount of the pull rope can be realized, and the accurate sampling at different depth positions can be realized.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring, and in particular to a depth-adjustable surface water quality testing and sampling device. Background Technology

[0002] Surface water, also known as terrestrial water, refers to water that exists on the Earth's surface and is exposed to the atmosphere. It is a general term for four types of water bodies: rivers, glaciers, lakes, and swamps. It is one of the important sources of water for human life and a major component of water resources in various countries. In order to ensure the safety of drinking water, it is necessary to test the quality of surface water.

[0003] Existing water sampling equipment can only perform water quality sampling and testing at a fixed depth, and cannot accurately sample water quality at different depths. It requires the use of other equipment for assistance, which has the disadvantages of slow speed and low efficiency, and needs to be improved. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a depth-adjustable surface water quality testing and sampling device, which facilitates accurate sampling of water at different depths.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a depth-adjustable surface water quality testing and sampling device, comprising:

[0006] Handhold for gripping;

[0007] A winch is rotatably connected to the handheld frame;

[0008] A pull rope is wound around the winch and has graduations on its outer wall;

[0009] The sampling container has an inlet and an outlet on the lower side wall.

[0010] A lifting ring is attached to the sampling bucket and fixed to the pull rope;

[0011] A switching mechanism is used to control the opening and closing of the water inlet.

[0012] By adopting the above technical solution and setting up a rope-suspended sampling bucket, water quality sampling at different depths can be achieved. At the same time, by setting a scale on the rope, the amount of rope unwinding can be precisely controlled, thereby achieving accurate sampling at different depths.

[0013] In a preferred embodiment, the present invention can be further configured such that the switching mechanism includes:

[0014] The switch tube is vertically installed on the inner wall of the sampling bucket, with an opening at its lower end;

[0015] A switch plate is vertically slidably connected to the switch tube and is provided with a switch hole for connecting to the water inlet;

[0016] A spring is disposed between the switch plate and the bottom wall of the sampling barrel;

[0017] The air tube has one end connected to the upper end of the switch tube, and the other end passes through the pull rope and is fixed to the winch.

[0018] An air pump is mounted on the winch and connected to the air pipe.

[0019] By adopting the above technical solution, once the sampling bucket reaches the sampling depth, an air pump inflates the air tube. The air enters the sampling tube and, under pressure, pushes the switch plate downwards until the switch hole on the switch plate connects to the water inlet, thus opening the inlet. When the sampling bucket is full of water sample, the air pump is turned off, and the air in the air tube is automatically released. At this point, under the action of the spring, the switch plate moves in the opposite direction, closing the water inlet. Therefore, by designing a cleverly structured switch mechanism that externally controls the opening and closing of the sampling bucket, the water sampling process becomes more convenient.

[0020] In a preferred embodiment, the present invention can be further configured such that: an airbag is disposed inside the switch tube above the switch plate, and the airbag is connected to the air tube.

[0021] By adopting the above technical solution, by setting an airbag connected to an air tube, the expansion of the airbag drives the switch plate to move, preventing air leakage between the switch plate and the switch tube from causing the switch mechanism to malfunction.

[0022] In a preferred embodiment, the present invention can be further configured such that a negative pressure port is provided on the upper side wall of the sampling bucket.

[0023] By adopting the above technical solution and setting a negative pressure port, water samples can be quickly drawn into the sampling bucket, thus achieving rapid water sampling.

[0024] In a preferred embodiment, the present invention can be further configured such that: the lifting ring has a through hole through which the pull rope passes, and the pull rope is provided with a clamping plate for holding the lifting ring.

[0025] By adopting the above technical solution, the pull rope and the lifting ring are fixed by setting a clamp, so that the pull rope bears the main force, preventing damage to the air tube and ensuring the service life of the sampling equipment.

[0026] In a preferred embodiment, the present invention can be further configured such that: a support rod is provided on the handheld frame, and a locking hook is provided on the support rod to hook the clamp plate.

[0027] By adopting the above technical solution and setting a locking hook, the sampling bucket and the handheld frame can be fixed together, which facilitates the handling and transportation of the sampling equipment.

[0028] In a preferred embodiment, the present invention can be further configured such that: a cleaning tube is provided on the support rod for the pull rope to pass through, and a cleaning cloth is provided inside the cleaning tube.

[0029] By adopting the above technical solution and setting up a cleaning cloth, the pull rope is automatically wiped and cleaned during the pull rope retrieval process, ensuring the cleanliness of the pull rope.

[0030] In a preferred embodiment, the present invention can be further configured such that the sampling bucket includes a bucket body and a bottom cover, wherein the bottom cover is threadedly connected to the bucket body.

[0031] By adopting the above technical solution and setting a detachable sampling bucket, it is convenient to open the sampling bucket for cleaning, making the cleaning process of the sampling bucket more convenient.

[0032] In summary, this utility model has the following beneficial effects:

[0033] 1. By setting up a rope to suspend the sampling bucket, water samples at different depths can be collected. At the same time, the scale on the rope allows for precise control of the rope unwinding amount, thereby enabling accurate sampling at different depths.

[0034] 2. By designing a cleverly structured switch mechanism that controls the opening and closing of the sampling tank from the outside, the water sampling process becomes more convenient;

[0035] 3. By setting up a cleaning cloth, the pull rope is automatically wiped and cleaned during the pull rope retrieval process, ensuring the cleanliness of the pull rope. Attached Figure Description

[0036] Figure 1 This is a structural schematic diagram of an embodiment;

[0037] Figure 2 This is a schematic diagram of the switching mechanism in an embodiment.

[0038] Reference numerals: 1. Handheld frame; 2. Winch; 21. Handle; 3. Pull rope; 31. Clamping plate; 4. Sampling bucket; 41. Bucket body; 42. Bottom cover; 43. Inlet; 44. Outlet; 45. Rubber stopper; 46. Negative pressure port; 5. Lifting ring; 51. Through hole; 6. Switching mechanism; 61. Switch tube; 62. Switch plate; 63. Spring; 64. Air tube; 65. Air pump; 66. Switch hole; 67. Airbag; 7. Support rod; 71. Locking hook; 72. Cleaning tube; 73. Cleaning cloth. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings.

[0040] like Figure 1 , Figure 2 As shown, a depth-adjustable surface water quality testing and sampling device includes a handheld frame 1, a winch 2, a pull rope 3, a sampling bucket 4, a lifting ring 5, and a switching mechanism 6.

[0041] like Figure 1 , Figure 2 As shown, the handheld frame 1 is for hand gripping, and the winch 2 is rotatably connected to the handheld frame 1, with a handle 21 on one side for controlling the rotation of the winch 2. The pull rope 3 is made of rubber and has internal fiber rope to ensure the structural strength of the pull rope 3. The pull rope 3 is wound around the winch 2, and its outer wall has graduations.

[0042] like Figure 1 , Figure 2 As shown, the sampling container 4 includes a container body 41 and a bottom cover 42. The bottom cover 42 is threaded onto the container body 41 to facilitate opening the sampling container 4 for cleaning. The lower side walls on both sides of the container body 41 are respectively provided with a water inlet 43 and a water outlet 44, with a rubber stopper 45 at the water outlet 44. The upper side wall of the container body 41 is provided with a negative pressure port 46, which can quickly draw water samples into the sampling container 4, achieving rapid water sampling.

[0043] like Figure 1 , Figure 2 As shown, the lifting ring 5 is rotatably connected to the upper end of the barrel 41. The lifting ring 5 has a through hole 51 through which the pull rope 3 passes. The pull rope 3 is fixedly provided with a clamping plate 31 to hold the lifting ring 5, so as to fix the pull rope 3 and the lifting ring 5 and bear the weight of the sampling barrel 4.

[0044] like Figure 1 , Figure 2 As shown, the switch mechanism 6 is located inside the barrel 41 and is used to open and close the water inlet 43 from the outside after the sampling barrel 4 reaches a certain depth, so that the water sample can enter the sampling barrel 4.

[0045] When water samples need to be collected, the counterweight is fixed to the sampling bucket 4, and then a vacuum is drawn at the negative pressure port 46 to create negative pressure inside the sampling bucket 4. Then, the winch 2 is rotated to unwind the pull rope 3. When unwinding the pull rope 3, pay attention to the scale on the pull rope 3. When the unwinding amount of the pull rope 3 meets the requirements, the control switch mechanism 6 is opened.

[0046] At this point, the inlet 43 opens, drawing the water sample into the sampling bucket 4. Then, the switch mechanism 6 is closed, and the pull rope 3 is wound up, lifting the sampling bucket 4. Finally, the outlet 44 is opened, allowing the water sample in the sampling bucket 4 to be poured out and tested.

[0047] like Figure 1 , Figure 2 As shown, the switching mechanism 6 includes a switching tube 61, a switching plate 62, a spring 63, an air pipe 64, and an air pump 65.

[0048] like Figure 1 , Figure 2 As shown, the switch tube 61 is vertically mounted on the inner wall of the sampling container 4, with an open lower end. The switch plate 62 is vertically slidably connected to the switch tube 61 and has a switch hole 66 for connecting to the water inlet 43, with the switch hole 66 located at the upper end of the water inlet 43. The spring 63 is disposed between the switch plate 62 and the bottom wall of the sampling container 4, and is used to apply an upward elastic force to the switch plate 62.

[0049] like Figure 1 , Figure 2 As shown, the air tube 64 is a plastic tube. One end of the air tube 64 is connected to the upper end of the switch tube 61. An air bladder 67 is installed inside the switch tube 61, located above the switch plate 62, and the air bladder 67 is connected to the air tube 64. The other end of the air tube 64 passes through the upper end of the sampling bucket 4, and is fixed to the winch 2 after passing through the inside of the pull rope 3. The air pump 65 is located on the side of the winch 2 away from the handle 21 and is connected to the air tube 64.

[0050] When the sampling bucket 4 is immersed in the water sample, the air pump 65 is used to inflate the air tube 64. At this time, the air enters the sampling tube and controls the air bag 67 to inflate. Under the pressure of the air bag 67, the switch plate 62 is pushed downward until the switch hole 66 on the switch plate 62 is connected to the water inlet 43, thus opening the water inlet 43.

[0051] Once the sampling bucket 4 is filled with water, the air pump 65 is turned off, and the air in the air pipe 64 is automatically discharged. At this time, under the action of the spring 63, the switch plate 62 moves in the opposite direction to close the water inlet 43, thereby realizing the opening and closing control of the water inlet 43 from the outside.

[0052] like Figure 1 , Figure 2 As shown, the handheld frame 1 is equipped with a support rod 7, and the support rod 7 is equipped with a locking hook 71 for hooking the clamping plate 31, so as to fix the sampling bucket 4 and the handheld frame 1 together, which facilitates the handling and transportation of the sampling equipment.

[0053] like Figure 1 , Figure 2 As shown, a cleaning tube 72 is provided on the support rod 7 for the pull rope 3 to pass through. A cleaning cloth 73 is provided inside the cleaning tube 72 so as to automatically wipe and clean the pull rope 3 during the pull rope 3 retraction process, so as to ensure the cleanliness of the pull rope 3.

[0054] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. A depth-adjustable surface water quality testing and sampling device, characterized in that: include: Handhold (1), for gripping by the hand; The winch (2) is rotatably connected to the handheld frame (1); A pull rope (3) is wound around the winch (2) and has graduations on its outer wall; The sampling bucket (4) has an inlet (43) and an outlet (44) on the lower side wall; A lifting ring (5) is set on the sampling bucket (4) and fixed to the pull rope (3); The switching mechanism (6) is used to control the opening and closing of the water inlet (43). The handheld frame (1) is provided with a support rod (7), and the support rod (7) is provided with a cleaning tube (72) for the pull rope (3) to pass through. A cleaning cloth (73) is provided inside the cleaning tube (72).

2. The depth-adjustable surface water quality testing and sampling device according to claim 1, characterized in that: The switching mechanism (6) includes: The switch tube (61) is vertically installed on the inner wall of the sampling bucket (4), and its lower end is open. The switch plate (62) is vertically slidably connected to the switch tube (61) and is provided with a switch hole (66) for connecting the water inlet (43); A spring (63) is disposed between the switch plate (62) and the bottom wall of the sampling barrel (4); The air tube (64) is connected at one end to the upper end of the switch tube (61), and at the other end is fixed to the winch (2) after passing through the pull rope (3); An air pump (65) is mounted on the winch (2) and connected to the air pipe (64).

3. The depth-adjustable surface water quality testing and sampling device according to claim 2, characterized in that: An airbag (67) is provided inside the switch tube (61) and located above the switch plate (62). The airbag (67) is connected to the air tube (64).

4. The depth-adjustable surface water quality testing and sampling device according to claim 2, characterized in that: The upper side wall of the sampling bucket (4) is provided with a negative pressure port (46).

5. The depth-adjustable surface water quality testing and sampling device according to claim 2, characterized in that: The lifting ring (5) has a through hole (51) through which the pull rope (3) passes, and the pull rope (3) is provided with a clamping plate (31) for holding the lifting ring (5).

6. The depth-adjustable surface water quality testing and sampling device according to claim 5, characterized in that: The support rod (7) is provided with a locking hook (71) for hooking the clamp (31).

7. The depth-adjustable surface water quality testing and sampling device according to claim 1, characterized in that: The sampling bucket (4) includes a bucket body (41) and a bottom cover (42), the bottom cover (42) being threadedly connected to the bucket body (41).

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