A groundwater sampler for caves

Abstract

The utility model discloses an underground water sampler of rock cave, including water taking bucket and pull rope, and water taking bucket includes gas outlet and water inlet, and the gas outlet includes gas outlet wall, and the water inlet includes water inlet wall, and the water inlet wall swing joint one -way valve flap, sets up the pull rope structure in the gas outlet wall, water taking bucket inner chamber wall, water inlet wall and one -way valve flap, and the pull rope is connected with water taking bucket through the pull rope structure, because the pull rope that is connected with water taking bucket sets up in water taking bucket, and the pull rope that is connected outside water taking bucket sets up in the position close to water taking bucket center, avoids or reduces the possibility of pull rope and rock wall contact friction, increases the service life of pull rope, because under the action of pull rope, one -way valve flap and rubber tightly resist and connect on water inlet wall, so that the water sample collected does not leak in the process of lifting.

Description

Technical Field

[0001] This utility model relates to the field of water body detection technology, specifically to a groundwater sampler for caves. Background Technology

[0002] Groundwater, one type of which is water stored in underground rock cavities.

[0003] Existing methods for collecting groundwater from underground rock cavities typically involve suspending a sampler with a rope deep into the cavity to collect samples. The sampler's water bucket has a lifting lug on its upper outer wall, with the rope connected to the lug via a flexible connection. A one-way valve is installed at the water inlet at the lower end of the bucket. However, due to the curved and rough rock walls of the caves, and the friction between the rope and the rock wall during lowering and raising of the sampler, the water bucket, being the largest diameter component of the sampler, has the highest probability of contact and friction with the rock wall, resulting in a short lifespan for the rope. Furthermore, the collision and vibration of the sampler against the borehole wall during the upward pull can cause the one-way valve to leak, leading to water sample leakage. Therefore, we provide a groundwater sampler for caves. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model discloses a groundwater sampler for caves, the technical solution of which is as follows: A groundwater sampler for a cave includes a water collection bucket and a pull rope. The water collection bucket includes an air outlet and a water inlet. The air outlet includes an air outlet wall, and the water inlet includes a water inlet wall. A one-way valve is movably connected to the water inlet wall. A rope threading structure is provided on the air outlet wall, the inner wall of the water collection bucket, the water inlet wall, and the one-way valve. The pull rope is connected to the water collection bucket through the rope threading structure.

[0005] Furthermore, the rope-threading structure installed on the air outlet wall includes a rope protective tube and a rope outlet wall perforation. The rope protective tubes are a pair, symmetrically arranged on the upper surface of the air outlet wall, with the upper ends of the pair of rope protective tubes close together in a figure-eight shape. The rope outlet wall perforation is drilled in the air outlet wall, with the axis of the rope outlet wall perforation aligned with the axis of the air outlet wall. The lower end of the rope outlet wall perforation penetrates into the water intake bucket, and the upper end of the rope outlet wall perforation penetrates the rope protective tube.

[0006] When a rope-threading structure is installed on the inner wall of the water-collecting bucket, multiple pull rope loops are symmetrically arranged on the inner side wall of the water-collecting bucket, and the axis of the pull rope loops is consistent with the axis of the water-collecting bucket.

[0007] When setting up a rope-threading structure on the inlet wall, symmetrical perforations for the rope inlet wall are drilled on the inlet wall, and the axial direction of the rope inlet wall perforations is consistent with the radial direction of the inlet wall.

[0008] When a rope-threading structure is installed on the one-way valve disc, a pull rope one-way valve disc threading tube is fixedly installed on the surface of the one-way valve disc. The axial direction of the one-way valve disc threading tube is consistent with the radial direction of the one-way valve disc and corresponds to the position of the perforation in the pull rope inlet wall.

[0009] Furthermore, a rotating shaft is fixedly installed on the inlet wall, and a bushing is installed on the one-way valve disc. The bushing is fixedly connected to the one-way valve disc through a pair of connecting rods. The bushing is sleeved on the rotating shaft and rotatably connected to it.

[0010] The one-way valve is made of rubber and has an internal cavity. Its mass density is less than that of water. After assembly, the one-way valve covers the water inlet located inside the water tank. The pull rope one-way valve is located on the side away from the water inlet. The water inlet wall is glued and fixed with rubber material.

[0011] Furthermore, the vent is equipped with a vent cover, and the vent cover has multiple ventilation holes drilled in it.

[0012] Furthermore, the water bucket has a spindle-shaped structure that is larger in the middle and smaller at the top and bottom. The water bucket body, the air outlet wall, and the water inlet wall are all made of metal, and the mass of the water inlet wall is greater than that of the air outlet wall.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. Because the pull rope connected to the water bucket is located inside the water bucket, and the pull rope connected to the outside of the water bucket is located near the center of the water bucket, the possibility of the pull rope contacting and rubbing against the rock wall is avoided or reduced, thus increasing the service life of the pull rope.

[0014] 2. Due to the action of the pull rope, the one-way valve disc is tightly connected to the rubber on the inlet wall, so that the collected water sample will not leak during the lifting process. Attached Figure Description

[0015] Figure 1 Axonometric drawing of the groundwater sampler in the cave; Figure 2 The diagram shows the position of the water bucket when the rope is in the slack state. The air outlet cover and one-way valve are not shown in the diagram. Figure 3 This is a schematic diagram of the air outlet cover; Figure 4 This is a schematic diagram of a one-way valve disc; Figure 5 A diagram showing the one-way valve opening the inlet when the rope is slack after the image of the water bucket has been made transparent. Figure 6 This diagram illustrates how the one-way valve closes the inlet when the rope is in a taut state after the image of the water bucket has been made transparent.

[0016] In the diagram, 100 is the water bucket, 110 is the air outlet, 111 is the air outlet wall, 112 is the air outlet cover, 120 is the water inlet, 121 is the water inlet wall, 122 is the rotating shaft, 130 is the one-way valve, 131 is the bushing, 200 is the pull rope, 201 is the pull rope protective tube, 202 is the pull rope air outlet wall perforation, 203 is the pull rope water bucket inner wall perforation, 204 is the pull rope water inlet wall perforation, and 205 is the pull rope one-way valve perforation tube. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0018] Please see Figure 1-6 The groundwater sampler includes a water collection bucket 100. The water collection bucket 100 has a spindle-shaped structure with a larger middle and smaller top and bottom, and has upper and lower openings. The upper opening is an air outlet 110, and the lower opening is a water inlet 120. The air outlet wall 111 of the air outlet 110 and the water inlet wall 121 of the water inlet 120 are fixedly connected to the water collection bucket 100. The water collection bucket 100, the air outlet wall 111, and the water inlet wall 121 are all made of metal, and the mass of the water inlet wall 121 is greater than the mass of the air outlet wall 111. The center of gravity of the groundwater sampler is close to the water inlet wall 121, so that water can easily enter and enter the water inlet 120 when the groundwater sampler takes water samples.

[0019] The water sampling bucket 100 has the largest diameter among the groundwater samplers. When collecting groundwater from underground rock cavities, if the pull rope is placed on the outer wall of the water sampling bucket, the probability of the pull rope coming into contact with and rubbing against the rock wall is the greatest, resulting in a short service life of the pull rope. In order to prevent the pull rope from coming into contact with and rubbing against the rock wall, this utility model sets a rope threading structure on the air outlet wall 111 of the air outlet 110, the inner wall of the water sampling bucket 100, the water inlet wall 121, and the one-way valve 130. The pull rope 200 is connected to the water sampling bucket 100 through the rope threading structure. The rope threading structure through which the pull rope is threaded is symmetrically arranged on the air outlet wall 111, the inner wall of the water sampling bucket 100, and the water inlet wall 121.

[0020] The rope-threading structure installed on the air outlet wall 111 includes a rope-protecting tube 201 and a rope-pull air outlet wall perforation 202. The rope-protecting tubes 201 are a pair, with their upper ends close together in a V-shape. The center lines of the pair of rope-protecting tubes 201 form a first virtual plane. A second virtual plane is perpendicular to the first virtual plane and intersects the intersection point of the center lines of the pair of rope-protecting tubes 201. Neither the first nor the second virtual plane is shown in the figure. The pair of rope-protecting tubes 201 are symmetrically arranged on the upper surface of the air outlet wall 111 with the second virtual plane as the symmetrical plane. The rope-pull air outlet wall perforation 202 is drilled into the air outlet wall 111, with its axis aligned with the axis of the air outlet wall 111. The lower end of the rope-pull air outlet wall perforation 202 penetrates into the water-collecting bucket 100, and the upper end of the rope-pull air outlet wall perforation 202 penetrates through the rope-protecting tube 201.

[0021] The rope-threading structure set in the inner wall of the water-taking bucket 100 consists of multiple rope-threading rings 203 symmetrically arranged on the inner wall of the water-taking bucket 100 with the second virtual plane as the symmetrical surface. The axial direction of the rope-threading rings 203 is consistent with the axial direction of the water-taking bucket 100.

[0022] The rope-threading structure set on the inlet wall 121 is a rope inlet wall perforation 204 drilled symmetrically on the second virtual plane, with the axial direction of the rope inlet wall perforation 204 being consistent with the radial direction of the inlet wall 121.

[0023] The rope threading structure installed on the one-way valve disc 130 is a pull rope one-way valve disc threading tube 205 fixedly installed on the surface of the one-way valve disc 130. The axial direction of the one-way valve disc threading tube 205 is consistent with the radial direction of the one-way valve disc 130 and corresponds to the position of the pull rope inlet wall perforation 204.

[0024] When threading the pull rope 200, the pull rope 200 is inserted through a pull rope protective tube 201, passes through a perforation 202 in the pull rope vent wall on the same side, passes through multiple pull rope water tank inner walls through loops 203 on one side, passes through a pull rope inlet wall through a perforation 204, then passes through a pull rope one-way valve disc through a tube 205, passes through another pull rope inlet wall through a perforation 204, passes through multiple pull rope water tank inner walls through loops 203 on the other side, passes through a pull rope vent wall through a perforation 202 on the other side, and finally exits through another pull rope protective tube 201. The threaded and exiting pull ropes 200 are connected to the lifting mechanism. The lifting mechanism can be any one of a small winch, an electric winch, or a manual winch.

[0025] A rotating shaft 122 is fixedly installed on the inlet wall 121. A bushing 131 is installed on the one-way valve disc 130. The bushing 131 is fixedly connected to the one-way valve disc 130 through a pair of connecting rods. The bushing 131 is sleeved on the rotating shaft 122 and rotatably connected to it.

[0026] The one-way valve 130 is made of rubber and has an internal cavity. Its mass density is less than that of water. After assembly, the one-way valve 130 covers the water inlet 120 located inside the water tank 100. The pull cord one-way valve 130 is located on the side away from the water inlet 120. The function of the one-way valve 130 is to allow water to enter the water tank 100 through the water inlet 120 and prevent water from flowing out of the water tank 100 through the water inlet 120. A rubber sheet (not shown in the figure) is glued and fixed on the wall 121 of the water inlet. The rubber sheet abuts against the one-way valve 130, increasing its airtightness.

[0027] The vent cover 112 is placed on the vent 110. The vent cover 112 has multiple ventilation holes drilled on it. The function of the vent cover 112 is to allow air to pass through and to prevent rock debris from falling into the water sample during the raising and lowering of the groundwater sampler.

[0028] Since the pull rope 200 connected to the water bucket 100 is located inside the water bucket 100, and the pull rope 200 connected to the outside of the water bucket 100 is located near the center of the water bucket 100, the possibility of the pull rope 200 contacting and rubbing against the rock wall is avoided or reduced, thus increasing the service life of the pull rope 200.

[0029] Please see Figure 2 , 5 6. In use, the groundwater sampler is lowered into the rock cavity. The inlet 120 first contacts the water surface. Due to buoyancy, the pull rope 200 is slack. Combined with the water pressure difference, the one-way valve 130 floats and rotates, opening the inlet 120. The water sample enters the sampling bucket 100 through the inlet 120, and the air inside the sampling bucket 100 is discharged through the vent 110. When lifted up, the pull rope 200 is taut due to the gravity of the groundwater sampler. In the state where the tension of the pull rope 200 is at the perforation 204 in the pull rope inlet wall, the direction of the tension changes due to the turning action of the perforation 204. At the one-way valve disc through pipe 205, the pull rope 200 applies downward pressure to the one-way valve disc 130, causing the one-way valve disc 130 to tightly contact and connect with the rubber on the inlet wall 121, and the inlet 120 is in a sealed state. After being lifted to the outside of the rock cavity, the one-way valve disc 130 is pushed open to transfer the water sample inside.

[0030] Because the one-way valve disc 130 is tightly connected to the rubber on the inlet wall 121 under the action of the pull rope 200, the collected water sample will not leak from the inlet 120 during the lifting process.

[0031] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A groundwater sampler for karst caves, characterized by, The device includes a water bucket (100) and a pull rope (200). The water bucket (100) includes an air outlet (110) and a water inlet (120). The air outlet (110) includes an air outlet wall (111), and the water inlet (120) includes an inlet wall (121). The inlet wall (121) is movably connected to a one-way valve (130). A rope threading structure is provided on the air outlet wall (111), the inner wall of the water bucket (100), the inlet wall (121), and the one-way valve (130). The pull rope (200) is connected to the water bucket (100) through the rope threading structure.

2. The groundwater sampler for caves according to claim 1, characterized in that, The rope-threading structure installed on the air outlet wall (111) includes a rope-pulling tube (201) and a rope-pulling air outlet wall perforation (202). The rope-pulling tubes (201) are a pair, symmetrically arranged on the upper surface of the air outlet wall (111). The upper ends of the pair of rope-pulling tubes (201) are close to each other, forming a figure-eight shape. The rope-pulling air outlet wall perforation (202) is drilled in the air outlet wall (111). The axial direction of the rope-pulling air outlet wall perforation (202) is consistent with the axial direction of the air outlet wall (111). The lower end of the rope-pulling air outlet wall perforation (202) penetrates into the water bucket (100), and the upper end of the rope-pulling air outlet wall perforation (202) penetrates the rope-pulling tube (201). When a rope-threading structure is provided on the inner wall of the water-collecting bucket (100), multiple rope-threading rings (203) are symmetrically arranged on the inner side wall of the water-collecting bucket (100), and the axial direction of the rope-threading rings (203) is consistent with the axial direction of the water-collecting bucket (100). When a rope-threading structure is set in the inlet wall (121), rope inlet wall perforations (204) are symmetrically drilled in the inlet wall (121), and the axial direction of the rope inlet wall perforations (204) is consistent with the radial direction of the inlet wall (121). When a rope threading structure is set on the one-way valve disc (130), a pull rope one-way valve disc threading tube (205) is fixedly set on the surface of the one-way valve disc (130). The axial direction of the one-way valve disc threading tube (205) is consistent with the radial direction of the one-way valve disc (130) and corresponds to the position of the pull rope inlet wall perforation (204).

3. The cave groundwater sampler of claim 2, wherein, A rotating shaft (122) is fixedly installed on the inlet wall (121), and a bushing (131) is installed on the one-way valve disc (130). The bushing (131) is fixedly connected to the one-way valve disc (130) through a pair of connecting rods. The bushing (131) is sleeved on the rotating shaft (122) and rotatably connected to it. The one-way valve disc (130) is made of rubber and has a cavity inside. Its mass density is less than that of water. After assembly, the one-way valve disc (130) covers the water inlet (120) located inside the water bucket (100). The pull rope one-way valve disc through pipe (205) is located on the side away from the water inlet (120). The water inlet wall (121) is glued and fixed with rubber material.

4. The cave groundwater sampler of claim 1, wherein, The air outlet (110) is covered with an air outlet cover (112), and multiple ventilation holes are drilled on the air outlet cover (112).

5. The cave groundwater sampler according to any one of claims 1 to 4, characterized in that The water taking bucket (100) has a spindle-shaped structure with a large middle and small upper and lower parts, the water taking bucket (100) body, the air outlet wall (111) and the water inlet wall (121) are all made of metal, and the mass of the water inlet wall (121) is greater than that of the air outlet wall (111).

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