A sand-retrieving device

Abstract

The utility model discloses a kind of sand bailing devices, belong to the technical field of pipe labeling equipment, including sand bailing cylinder, the middle part of sand bailing cylinder is fixedly connected with water guide pipe, water guide pipe includes water inlet end and water outlet end, the water outlet end of water guide pipe is installed with the drill bit located below sand bailing cylinder, water hole is equipped on drill bit, the top end opening of sand bailing cylinder, the bottom end of sand bailing cylinder is detachably installed with the bottom cover on the outer wall of water guide pipe, the top of sand bailing cylinder is movably installed with multiple deflector.The utility model is through the setting of deflector, in the process of water flow, will impact deflector, so that deflector deflects inwards certain angle, will not affect sand upward movement, after stopping water supply, hoist the device, deflector is driven by water flow and overturns to horizontal outside, the gap between deflector and wellbore is smaller, can block the gap between sand bailing cylinder and wellbore, to improve sand collection efficiency under the condition of not affecting sand rising.

Description

Technical Field

[0001] This utility model relates to a tube labeling device, and more particularly to a sand scooping device, belonging to the technical field of tube labeling equipment. Background Technology

[0002] During the construction and development of coalbed methane wells, gravel from sandstone strata, coal seams, or pulverized coal will settle at the bottom of the wellbore. Over time, this sedimentation can severely impact the production capacity of coalbed methane wells. Similarly, during the construction and pumping of hydrological wells, gravel from the aquifer will also settle at the bottom of the wellbore, reducing the water output from the hydrological wells.

[0003] Application CN202121420204.2 discloses a sand-removing device and sand-removing machinery using the same, comprising: a sand-removing cylinder with a sand-collecting trough open at one end; and a water guide pipe including an inlet end and an outlet end, the outlet end being disposed away from the opening, and the water guide pipe being connected to the sand-removing cylinder. In use, the sand-removing device is placed inside a well shaft, and water is sprayed towards the bottom of the well shaft through the outlet end. The sprayed water flow lifts up the sand and gravel settled at the bottom of the well shaft, allowing the sand and gravel to settle again and fall into the sand-collecting trough along the opening. Lifting the sand-removing device can carry away the settled sand, and repeated use can further reduce the amount of settled sand in the well shaft.

[0004] However, the device still has the following problems: In order to improve the sand dredging efficiency, the device can reduce the amount of sand flowing out from the gap between the sand dredging cylinder and the shaft by increasing the diameter of the opening or the whole. However, increasing the diameter of the opening or the whole will block the sand from rising and will also lead to low sand dredging efficiency.

[0005] Therefore, this utility model proposes a new solution. Utility Model Content

[0006] The main purpose of this utility model is to provide a sand-retrieving device to overcome the shortcomings of the existing technology.

[0007] The objective of this utility model can be achieved by adopting the following technical solution:

[0008] A sand-removing device includes a sand-removing cylinder, a water guide pipe fixedly connected to the middle of the sand-removing cylinder, the water guide pipe including an inlet end and an outlet end, a drill bit installed at the outlet end of the water guide pipe located below the sand-removing cylinder, the drill bit having a water-permeable hole, the top end of the sand-removing cylinder being open, a bottom cover detachably installed at the bottom end of the sand-removing cylinder located on the outer wall of the water guide pipe, and multiple guide plates movably installed on the top of the sand-removing cylinder.

[0009] Preferably, the top of the sand-collecting cylinder is provided with multiple circumferentially spaced rotating grooves, and a rotating rod is fixedly connected to the middle of the rotating grooves.

[0010] Preferably, the guide plate is an arc-shaped guide plate, and a rotating block located inside the rotating groove is fixedly connected to the bottom of the guide plate. A rotating hole that cooperates with the rotating rod is opened in the middle of the rotating block.

[0011] Preferably, the bottom end of the rotating block has a rounded corner on the side near the water guide pipe.

[0012] Preferably, flexible plates are provided on both sides of the guide plate.

[0013] Preferably, the bottom outer wall of the sand-collecting cylinder is provided with an external thread, the bottom cover includes a cover body, the bottom end of the cover body is fixedly connected with a sleeve, and the inner wall of the cover body is provided with an internal thread that mates with the external thread.

[0014] Preferably, a fixing rod is connected between the inner wall of the sand-collecting cylinder and the outer wall of the water-guiding pipe.

[0015] Preferably, the outer wall of the water outlet end of the water guide pipe is provided with a second external thread, and the top end of the drill bit is fixedly connected to an internal threaded pipe that mates with the second external thread.

[0016] The beneficial technical effects of this utility model are as follows: According to the sand-collecting device of this utility model, a bottom cover is detachably installed at the bottom of the sand-collecting cylinder. When emptying sand, the bottom cover is removed, allowing the sand inside the sand-collecting cylinder to flow out from the bottom without needing to be tilted, which is convenient to use. Through the setting of the guide plate, during the upward flow of water, the guide plate will impact the guide plate, causing the guide plate to deflect inward at a certain angle, which will not affect the upward movement of the sand. After the water supply is stopped, the device is lifted, and the guide plate flips outward to a horizontal position under the drive of the water flow. The gap between the guide plate and the well cylinder is small, which can block the gap between the sand-collecting cylinder and the well cylinder, thereby improving the sand collection efficiency without affecting the upward movement of the sand. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the overall structure according to a preferred embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of a sand-collecting cylinder structure according to a preferred embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the bottom cover structure according to a preferred embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of a guide vane structure according to a preferred embodiment of the present invention.

[0022] In the diagram: 1. Sand dredging cylinder; 2. Water guide pipe; 3. Drill bit; 4. Bottom cover; 5. Guide plate; 6. Rotary groove; 7. Rotary rod; 8. Rotary block; 9. Rotary hole; 10. Rounded corner; 11. Flexible plate; 12. External thread; 401. Cover body; 402. Sleeve; 403. Internal thread; 13. Fixing rod; 14. Second external thread; 15. Internal threaded pipe. Detailed Implementation

[0023] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0024] like Figures 1-5 As shown, the sand dredging device provided in this embodiment includes a sand dredging cylinder 1, a water guide pipe 2 fixedly connected to the middle of the sand dredging cylinder 1, the water guide pipe 2 including an inlet end and an outlet end, a drill bit 3 located below the sand dredging cylinder 1 installed at the outlet end of the water guide pipe 2, the drill bit 3 having a water permeable hole, the top end of the sand dredging cylinder 1 being open, a bottom cover 4 located on the outer wall of the water guide pipe 2 being detachably installed at the bottom end of the sand dredging cylinder 1, and multiple guide plates 5 being movably installed on the top of the sand dredging cylinder 1. In use, the sand-removing device is placed at the bottom of the well, with the opening of the sand-removing cylinder 1 facing upwards. The inlet end of the water pipe 2 is connected to an external high-pressure water source. The high-pressure water is sprayed out along the outlet end, lifting up the settled sand at the bottom of the well. After the settled sand is lifted, the water supply is stopped. As the settled sand descends, it falls into the sand-removing cylinder 1 through the opening. After the settled sand has settled, the sand-removing device is pulled out of the well, and the settled sand in the sand-removing cylinder 1 is poured out, thus achieving the retrieval of settled sand from the well. A bottom cover 4 is detachably installed at the bottom end of the sand-removing cylinder 1. When emptying the sand, the bottom cover 4 is removed. Cover 4 allows the sediment inside the sand-collecting cylinder 1 to flow out from the bottom without needing to be poured, making it convenient to use. With the setting of the guide plate 5, during the upward flow of water, the guide plate 5 will be impacted, causing it to deflect inward at a certain angle, which will not affect the upward movement of the sediment. After the water supply is stopped, the device is lifted, and the guide plate will flip outward to a horizontal position under the drive of the water flow. The gap between the guide plate 5 and the well barrel is small, which can block the gap between the sand-collecting cylinder 1 and the well barrel, thereby improving the sediment collection efficiency without affecting the upward movement of the sediment.

[0025] In an optional embodiment, the top of the sand-dredging cylinder 1 is provided with multiple circumferentially spaced rotating grooves 6. A rotating rod 7 is fixedly connected to the middle of the rotating groove 6. The guide plate 5 is an arc-shaped guide plate. A rotating block 8 located inside the rotating groove 6 is fixedly connected to the bottom of the guide plate 5. A rotating hole 9 that cooperates with the rotating rod 7 is provided in the middle of the rotating block 8. A rounded corner 10 is provided on the side of the bottom of the rotating block 8 near the water guide pipe 2. With the setting of the rounded corner 10, the guide plate 5 can be rotated inward at a certain angle. In the natural state, since the other end of the rotating block 8 does not have a rounded corner, the rotating block 8 will contact the bottom of the rotating groove 6. At this time, the guide plate 5 is in a horizontal state. When the guide plate 5 is at its rotation limit, the angle between its bottom surface and the top surface of the sand-dredging cylinder 1 is less than 90 degrees. Therefore, when the whole structure rises, the guide plate 5 can automatically return to a horizontal state. The guide plate 5 is an arc-shaped guide plate, and multiple guide plates 5 are arranged circumferentially at equal intervals. The diameter of the circle formed by them is not greater than the inner diameter of the well barrel.

[0026] In an optional embodiment, flexible plates 11 are provided on both sides of the guide plate 5. Since the sand scooping cylinder 1 is cylindrical, when multiple guide plates 5 are horizontal and can form a circle, they will interfere with each other when flipping inward, preventing them from flipping. However, since flexible plates 11 are provided on both sides of the guide plate 5, when the guide plate 5 flips inward, the flexible plates 11 between adjacent guide plates 5 are allowed to overlap each other without affecting the inward flipping of the guide plate 5.

[0027] In an optional embodiment, the bottom outer wall of the sand dredging cylinder 1 is provided with an external thread 12, the bottom cover 4 includes a cover body 401, the bottom end of the cover body 401 is fixedly connected with a sleeve 402, the inner wall of the cover body 401 is provided with an internal thread 403 that mates with the external thread 12, a fixing rod 13 is connected between the inner wall of the sand dredging cylinder 1 and the outer wall of the water guide pipe 2, the outer wall of the water outlet end of the water guide pipe 2 is provided with a second external thread 14, and the top end of the drill bit 3 is fixedly connected with an internal thread pipe 15 that mates with the second external thread 14.

[0028] In this embodiment, as Figures 1-5 As shown, the working process of the sand-removing device provided in this embodiment is as follows:

[0029] In use, place the sand removal device at the bottom of the well, with the opening of the sand removal cylinder 1 facing upwards. The inlet end of the water guide pipe 2 is connected to the external high-pressure water. The high-pressure water is sprayed out along the outlet end, which picks up the sand at the bottom of the well. During the upward flow of the water, it will impact the guide plate 5, causing the guide plate 5 to deflect inwards at a certain angle. After the sand is picked up, stop the water supply and lift the device a certain distance. This will cause the guide plate to flip outwards to a horizontal position under the action of the water flow. As the sand descends, it falls into the sand removal cylinder 1 through the opening. After the sand has settled, remove the sand removal device from the well and remove the bottom cover 4, allowing the sand inside the sand removal cylinder 1 to flow out from the bottom.

[0030] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A sand-removing device, characterized in that, The system includes a sand-collecting cylinder (1), a water guide pipe (2) is fixedly connected to the middle of the sand-collecting cylinder (1), the water guide pipe (2) includes an inlet end and an outlet end, a drill bit (3) is installed at the outlet end of the water guide pipe (2) located below the sand-collecting cylinder (1), the drill bit (3) is provided with a water-permeable hole, the top of the sand-collecting cylinder (1) is open, the bottom end of the sand-collecting cylinder (1) is detachably installed with a bottom cover (4) located on the outer wall of the water guide pipe (2), and multiple guide plates (5) are movably installed on the top of the sand-collecting cylinder (1).

2. The sand-removing device according to claim 1, characterized in that, The top of the sand scooping cylinder (1) is provided with multiple circumferentially spaced rotating grooves (6), and a rotating rod (7) is fixedly connected to the middle of the rotating grooves (6).

3. A sand-removing device according to claim 2, characterized in that, The guide plate (5) is an arc-shaped guide plate. The bottom of the guide plate (5) is fixedly connected to a rotating block (8) located inside the rotating groove (6). The rotating block (8) has a rotating hole (9) in the middle that cooperates with the rotating rod (7).

4. A sand-removing device according to claim 3, characterized in that, The bottom end of the rotating block (8) is provided with a rounded corner (10) on the side near the water guide pipe (2).

5. A sand-removing device according to claim 1, characterized in that, The guide plate (5) is provided with flexible plates (11) on both sides.

6. A sand-removing device according to claim 1, characterized in that, The bottom outer wall of the sand scooping cylinder (1) is provided with an external thread (12), the bottom cover (4) includes a cover body (401), the bottom end of the cover body (401) is fixedly connected with a sleeve (402), and the inner wall of the cover body (401) is provided with an internal thread (403) that mates with the external thread (12).

7. A sand-removing device according to claim 1, characterized in that, A fixing rod (13) is connected between the inner wall of the sand dredging cylinder (1) and the outer wall of the water guide pipe (2).

8. A sand-removing device according to claim 1, characterized in that, The water outlet of the water pipe (2) is provided with a second external thread (14), and the top of the drill bit (3) is fixedly connected with an internal thread pipe (15) that mates with the second external thread (14).

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