A gravel filling material conveying pipe for hydrogeological borehole construction

Abstract

The present invention discloses a gravel filling material conveying pipe for hydrogeological borehole construction, which relates to the technical field of hydrogeology. It includes a first conveying pipe, the upper end of the inner wall of the connecting piece is fixedly connected to the outer wall of the first conveying pipe, the lower end of the inner wall of the connecting piece is fixedly connected to a second conveying pipe, and a protection mechanism is arranged on the outer wall of the first conveying pipe. The protection mechanism includes an inner pipe, the outer wall of the inner pipe is slidably connected to the inner wall of the first conveying pipe, one end of a sliding rod is fixedly connected to the bottom of the outer wall of the inner pipe, the outer wall of the sliding rod is slidably connected to the inner wall of the chute, the top of a telescopic spring is fixedly connected to the bottom of the sliding rod, one side of a rolling ball is movably connected to the end of the sliding rod away from the inner pipe, and the outer wall of a rotating rod is rotatably connected to the center of the inner wall of the rolling ball. By providing the protection mechanism, the connection part of the conveying pipe body is protected, and the service life of the conveying pipe body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogeology, and particularly to a gravel filling material conveying pipe for hydrogeological borehole construction. Background Technique

[0002] Hydrogeological boreholes are used to regularly measure the groundwater level, water quality, etc. through drilling to understand the dynamic changes of groundwater in a large area. There are two types: pumping test observation holes and long-term observation holes (abbreviated as long-term observation holes). Hydrogeological boreholes are different from general geological boreholes. Hydrogeological boreholes are arranged in hydrogeological surveys and explorations of various scales. Generally, single-hole steady flow pumping tests are carried out, and multi-(group) hole unsteady flow pumping tests are carried out when necessary to obtain hydrogeological parameters required for different purposes.

[0003] In some areas or mine exploration areas, certain boreholes are selected as hydrogeological boreholes. In addition to meeting the requirements of general survey boreholes, hydrogeological boreholes also need to measure the initial groundwater level and the stable water level of the aquifer, take water samples to identify water quality, measure water volume and water temperature, etc. hydrogeological parameters. To correctly evaluate the groundwater reserves, stratified pumping, stratified observation, full-hole pumping or group-hole pumping tests are also required to divide aquifers and groups, observe the drawdown funnel of groundwater and the flow velocity and direction of groundwater flow, so as to study the hydraulic properties of aquifers, the hydraulic connection between each aquifer and between the aquifer and surface water. To achieve this goal, the diameter of the exploration borehole is often enlarged, or a borehole with a larger diameter is drilled, and then procedures such as casing installation, filter pipe installation, gravel filling, water stoppage, and well washing are carried out, and then pumping tests and groundwater dynamic observations are carried out. After observation, it can be used as a water supply well.

[0004] When filling gravel into hydrogeological boreholes, a conveying pipe is needed for the gravel filling process. However, when the existing conveying pipe is filling gravel, the connection of the conveying pipe will be impacted by the impact force of the gravel, resulting in damage to the connection of the conveying pipe, which is not conducive to the gravel conveying efficiency of hydrogeological boreholes. At the same time, it also reduces the service life of the conveying pipe and increases the maintenance cost of the conveying pipe. In view of this, we have proposed a gravel filling material conveying pipe for hydrogeological borehole construction. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a gravel filling material conveying pipe for hydrogeological borehole construction, which solves the problems mentioned in the above background technique.

[0007] (II) Technical Solutions

[0008] To achieve the above object, the present invention is realized through the following technical solutions: A gravel filling material conveying pipe for hydrogeological borehole construction, including a first conveying pipe, the upper end of the inner wall of the connecting piece is fixedly connected to the outer wall of the first conveying pipe, the lower end of the inner wall of the connecting piece is fixedly connected to a second conveying pipe, and a protection mechanism is arranged on the outer wall of the first conveying pipe. The protection mechanism includes:

[0009] An inner pipe, the outer wall of the inner pipe is slidably connected to the inner wall of the first conveying pipe, one end of a sliding rod is fixedly connected to the bottom of the outer wall of the inner pipe, and the outer wall of the sliding rod is slidably connected to the inner wall of a chute;

[0010] A telescopic spring, the top of the telescopic spring is fixedly connected to the bottom of the sliding rod, one side of a rolling ball is movably connected to the end of the sliding rod away from the inner pipe, and the outer wall of a rotating rod is rotatably connected to the center of the inner wall of the rolling ball;

[0011] A support rod, one side of the support rod is fixedly connected to one end of the rotating rod, one side of a push plate is fixedly connected to one end of the support rod, one end of a compression spring is fixedly connected to the other side of the push plate, and the other end of the compression spring is fixedly connected to one side of the inner wall of a buffer groove.

[0012] Preferably, one side of the inner wall of the second conveying pipe is fixedly connected to one side of a fixing plate, one end of a hanging ring is fixedly connected to the bottom of the fixing plate, one end of a hook is movably connected to the other end of the hanging ring, one end of a tension spring is fixedly connected to the other end of the hook, a buffer plate is arranged at the other end of the tension spring, and the inner wall of a buffer pad is fixedly connected to the outer wall of the buffer plate.

[0013] Preferably, the outer wall of the upper end of the chute is fixedly connected to the inner wall of the first conveying pipe, the outer wall of the lower end of the chute is fixedly connected to the inner wall of the second conveying pipe, and the end of the telescopic spring away from the sliding rod is fixedly connected to the inner wall of the chute.

[0014] Preferably, one side of the buffer plate is hinged to one side of the inner wall of the second conveying pipe, and the outer wall of the buffer pad is movably connected to the end of the sliding rod away from the inner pipe.

[0015] Preferably, a cleaning mechanism is arranged inside the chute. The cleaning mechanism includes a toothed plate, which meshes with a rotating gear. The outer wall of the rotating gear is rotatably connected to the outer wall of a rotating shaft. One side of a telescopic rod is arranged at one end of the rotating shaft, and one end of a cleaning brush is fixedly connected to the outer wall of the telescopic rod.

[0016] Preferably, the side of the toothed plate away from the rotating gear is fixedly connected to the inner wall of one side of the chute. The outer wall of the rotating gear is rotatably connected to the inner wall of the sliding rod, and the outer wall of the toothed plate is slidably connected to the inner wall of the sliding rod.

[0017] Preferably, a plurality of groups of cleaning brushes are provided, and the plurality of groups of cleaning brushes are equidistantly distributed on the outer wall of the telescopic rod.

[0018] Preferably, an anti-blocking mechanism is provided on the outer wall of the rotating shaft. The anti-blocking mechanism includes a first bevel gear, the first bevel gear meshes with a second bevel gear, one end of the second bevel gear is fixedly connected to one end of a lead screw, the other end of the lead screw is fixedly connected to one side of a cam, and the top of a striking plate is attached to the outer wall of the cam.

[0019] Preferably, the inner wall of the first bevel gear is rotatably connected to the outer wall of the rotating shaft, the outer wall of the lead screw is rotatably connected to the inner wall of the inner tube, and one side of the striking plate is hinged to one side of the inner wall of the inner tube.

[0020] (III) Beneficial effects

[0021] The present invention provides a gravel filling material conveying pipe for hydrogeological borehole construction. It has the following beneficial effects:

[0022] (1) When the gravel filling material conveying pipe for hydrogeological borehole construction is in use, by providing a protection mechanism, the gravel is conveyed through the inner tube. At this time, the weight of the falling gravel drives the inner tube to slide down through two sliding rods in two sliding grooves. At the same time, when the two sliding rods slide down, they squeeze the two rolling balls, and the two rolling balls buffer the sliding of the two sliding rods. When the two sliding rods slide down to the second conveying pipe, a secondary buffering force is provided for the sliding of the inner tube. When the first conveying pipe and the second conveying pipe no longer convey the gravel, the two telescopic springs restore their elasticity and drive the inner tube to reset, so that the inner tube descends when conveying the gravel to protect the connection between the first conveying pipe and the second conveying pipe, avoiding damage to the connection caused by the impact of the gravel, and at the same time restoring to the initial position when there is no need to convey the gravel, ensuring that the connection is protected again during the next gravel conveying, and improving the service life of the conveying pipe body.

[0023] (2) When the gravel filling material conveying pipe for hydrogeological borehole construction is in use, by providing a cleaning mechanism, when the two sliding rods rise and fall, the two toothed plates drive the two rotating gears to rotate. Furthermore, the two telescopic rods rotate to drive a plurality of groups of cleaning brushes to rotate accordingly to clean the inside of the sliding groove, preventing the gravel from blocking the inside of the sliding groove and thus affecting the protection of the connection between the inner tube and the first conveying pipe and the second conveying pipe, improving the cleaning efficiency and ensuring the normal operation of the protection mechanism at the same time.

[0024] (3) When the gravel filling material conveying pipe for hydrogeological borehole construction is in use, by providing an anti-blocking mechanism, when the two rotating shafts rotate, they drive the two first bevel gears to rotate. Furthermore, when the two cams rotate, they reciprocally strike the striking plates on both sides of the inner tube, causing the two striking plates to vibrate inside the inner tube, providing a vibrating force for the gravel conveyed inside the inner tube, avoiding the gravel from being blocked inside the inner tube and thus affecting the conveying efficiency of the gravel. Brief Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the external structure of the inner tube of the present invention;

[0026] Figure 2 It is a schematic cross-sectional view of the internal structure of the inner tube of the present invention;

[0027] Figure 3 It is an enlarged schematic diagram of the structure of area A of the present invention;

[0028] Figure 4 It is an enlarged schematic diagram of the structure of area B of the present invention;

[0029] Figure 5 It is an enlarged schematic diagram of the structure of area C of the present invention;

[0030] Figure 6 It is an enlarged schematic diagram of the structure of area D of the present invention;

[0031] Figure 7 It is a front view schematic diagram of the rolling ball structure of the present invention.

[0032] In the figure: 1, the first conveying pipe; 2, the second conveying pipe; 3, the connecting piece; 4, the protection mechanism; 401, the inner tube; 402, the sliding rod; 403, the sliding groove; 404, the telescopic spring; 405, the rolling ball; 406, the rotating rod; 407, the support rod; 408, the pushing plate; 409, the pressing spring; 410, the buffer groove; 411, the fixing plate; 412, the hanging ring; 413, the hook; 414, the pulling spring; 415, the buffer plate; 416, the buffer pad; 5, the cleaning mechanism; 501, the toothed plate; 502, the rotating gear; 503, the rotating shaft; 504, the telescopic rod; 505, the cleaning brush; 6, the anti-blocking mechanism; 601, the first bevel gear; 602, the second bevel gear; 603, the lead screw; 604, the cam; 605, the knocking plate. Detailed Embodiments

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1 - 7, the present invention provides a gravel filling material conveying pipe for hydrogeological borehole construction, including a first conveying pipe 1. The upper end of the inner wall of the first conveying pipe 1 is fixedly connected to the outer wall of a connecting member 3, and the lower end of the inner wall of the connecting member 3 is fixedly connected to a second conveying pipe 2. A protection mechanism 4 is arranged on the outer wall of the first conveying pipe 1. The protection mechanism 4 includes an inner pipe 401. The outer wall of the inner pipe 401 is slidably connected to the inner wall of the first conveying pipe 1. One end of a sliding rod 402 is fixedly connected to the bottom of the outer wall of the inner pipe 401. The outer wall of the sliding rod 402 is slidably connected to the inner wall of a chute 403. The top of a telescopic spring 404 is fixedly connected to the bottom of the sliding rod 402. One side of a rolling ball 405 is movably connected to the end of the sliding rod 402 away from the inner pipe 401. The outer wall of a rotating rod 406 is rotatably connected to the center of the inner wall of the rolling ball 405. One side of a support rod 407 is fixedly connected to one end of the rotating rod 406. One side of a pushing plate 408 is fixedly connected to one end of the support rod 407. One end of a pressing spring 409 is fixedly connected to the other side of the pushing plate 408, and the other end of the pressing spring 409 is fixedly connected to one side of the inner wall of a buffer groove 410.

[0035] In one embodiment of the present invention, one side of the inner wall of the second conveying pipe 2 is fixedly connected to one side of a fixing plate 411. One end of a hanging ring 412 is fixedly connected to the bottom of the fixing plate 411. One end of a hook 413 is movably connected to the other end of the hanging ring 412. One end of a tension spring 414 is fixedly connected to the other end of the hook 413. A buffer plate 415 is arranged at the other end of the tension spring 414. The outer wall of the buffer plate 415 is fixedly connected to the inner wall of a buffer pad 416. The outer wall of the upper end of the chute 403 is fixedly connected to the inner wall of the first conveying pipe 1, and the outer wall of the lower end of the chute 403 is fixedly connected to the inner wall of the second conveying pipe 2. The end of the telescopic spring 404 away from the sliding rod 402 is fixedly connected to the inner wall of the chute 403. There are two groups of sliding rods 402, and the two groups of sliding rods 402 are symmetrically arranged with the central axis of the inner pipe 401 as the axis of symmetry.

[0036] In addition, in order to prevent the gravel from blocking inside the chute 403 and affecting the protection performance of the inner pipe 401, a cleaning mechanism 5 is arranged inside the chute 403. The cleaning mechanism 5 includes a toothed plate 501. A rotating gear 502 is meshed with the toothed plate 501. The outer wall of a rotating shaft 503 is rotatably connected to the inner wall of the rotating gear 502. One side of a telescopic rod 504 is arranged at one end of the rotating shaft 503. One end of a cleaning brush 505 is fixedly connected to the outer wall of the telescopic rod 504.

[0037] In an embodiment of the present invention, one side of the inner wall of the chute 403 is fixedly connected to the side of the toothed plate 501 away from the rotating gear 502. The outer wall of the rotating gear 502 is rotatably connected to the inner wall of the sliding rod 402, and the outer wall of the toothed plate 501 is slidably connected to the inner wall of the sliding rod 402. There are several groups of cleaning brushes 505, and the several groups of cleaning brushes 505 are equidistantly distributed on the outer wall of the telescopic rod 504.

[0038] In addition, in order to prevent the gravel from being blocked during transportation inside the inner pipe 401, an anti-blocking mechanism 6 is provided on the outer wall of the rotating shaft 503. The anti-blocking mechanism 6 includes a first bevel gear 601, the first bevel gear 601 meshes with a second bevel gear 602, one end of the second bevel gear 602 is fixedly connected to one end of a lead screw 603, the other end of the lead screw 603 is fixedly connected to one side of a cam 604, and the top of a striking plate 605 is attached to the outer wall of the cam 604.

[0039] In an embodiment of the present invention, the inner wall of the first bevel gear 601 is rotatably connected to the outer wall of the rotating shaft 503, the outer wall of the lead screw 603 is rotatably connected to the inner wall of the inner pipe 401, and one side of the striking plate 605 is hinged to one side of the inner wall of the inner pipe 401.

[0040] In the present invention, during use, gravel is transported through the first conveying pipe 1 and the second conveying pipe 2. The connecting piece 3 connects and fixes the two ends of the first conveying pipe 1 and the second conveying pipe 2, increasing the length of the conveying pipe body to facilitate the transportation of gravel. By providing a protection mechanism 4, when the gravel enters the connection of the first conveying pipe 1 and the second conveying pipe 2, the gravel is transported through the inner pipe 401. At this time, the weight of the falling gravel drives the inner pipe 401 to slide down through the two sliding rods 402 inside the two chutes 403. During the sliding process, the two telescopic springs 404 are compressed. At the same time, when the two sliding rods 402 slide down, they squeeze the two rolling balls 405, and the rolling balls 405 then rotate. After the two rolling balls 405 are subjected to the squeezing force, they drive the two push plates 408 to displace, and then the two compression springs 409 are squeezed and deformed. When the two sliding rods 402 slide down, after the compression springs 409 lose the squeezing force, they drive the rolling balls 405 to return to their original positions. The two rolling balls 405 buffer the sliding of the two sliding rods 402 to prevent the inner pipe 401 from sliding down too fast and damaging the first conveying pipe 1. When the two sliding rods 402 slide down to the second conveying pipe 2, they touch the two buffer pads 416, causing the two buffer plates 415 to displace. At the same time, the two tension springs 414 are stretched by the sliding force, providing a secondary buffering force when the inner pipe 401 slides down. When the inner pipe 401 slides down, the two tension springs 414 restore their elasticity and drive the buffer plates 415 to reset. When the first conveying pipe 1 and the second conveying pipe 2 no longer transport gravel, the two telescopic springs 404 restore their elasticity and push the inner pipe 401 to move upward in the two chutes 403, driving the inner pipe 401 to reset, so that the inner pipe 401 descends during the transportation of gravel to protect the connection of the first conveying pipe 1 and the second conveying pipe 2, preventing the connection from being damaged by the impact of gravel. At the same time, when there is no need to transport gravel, it returns to the initial position to ensure that the connection is protected again during the next gravel transportation, improving the service life of the conveying pipe body. By providing a cleaning mechanism 5, when the two sliding rods 402 move up and down, the two toothed plates 501 drive the two rotating gears 502 to rotate, and then the rotating shaft 503 rotates accordingly. When the rotating shaft 503 rotates, it drives the telescopic rods 504 to rotate through the two bevel gears. The connection of the two bevel gears to the rotating shaft 503 and the telescopic rods 504 is a publicly known technology and will not be elaborated here. The two telescopic rods 504 rotate and drive a number of cleaning brushes 505 to rotate accordingly to clean the inside of the chute 403, preventing gravel from blocking the inside of the chute 403 and affecting the protection of the connection of the first conveying pipe 1 and the second conveying pipe 2 by the inner pipe 401. At the same time, when the two sliding rods 402 move up and down, the two telescopic rods 504 follow the contraction and expansion movement, and can achieve a cleaning effect while the two sliding rods 402 displace, improving the cleaning efficiency and ensuring the normal operation of the protection mechanism 4. By providing a blockage prevention mechanism 6, when the two rotating shafts 503 rotate, they drive the two first bevel gears 601 to rotate, and then the two second bevel gears 602 rotate accordingly to drive the two screw rods 603 to rotate.When the two sets of lead screws 603 rotate, they drive the two sets of cams 604 to rotate. When the two sets of cams 604 rotate, they reciprocally strike the striking plates 605 on both sides of the inner tube 401, causing the two sets of striking plates 605 to vibrate inside the inner tube 401, providing a vibrating force to the gravel conveyed inside the inner tube 401, avoiding blockage of the gravel inside the inner tube 401, and thus affecting the conveying efficiency of the gravel.

[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gravel filling material conveying pipe for hydrogeological borehole construction, comprising a first conveying pipe (1), the upper end of the inner wall of a connecting piece (3) is fixedly connected to the outer wall of the first conveying pipe (1), and the lower end of the inner wall of the connecting piece (3) is fixedly connected to a second conveying pipe (2), characterized in that: A protective mechanism (4) is provided on the inner wall of the first conveying pipe (1). The protective mechanism (4) includes: An inner pipe (401), the outer wall of the inner pipe (401) is slidably connected to the inner wall of the first conveying pipe (1). One end of a sliding rod (402) is fixedly connected to the bottom of the outer wall of the inner pipe (401), and the outer wall of the sliding rod (402) is slidably connected to the inner wall of a chute (403); A telescopic spring (404), the top of the telescopic spring (404) is fixedly connected to the bottom of the sliding rod (402). One side of a rolling ball (405) is movably connected to the end of the sliding rod (402) away from the inner pipe (401). The outer wall of a rotating rod (406) is rotatably connected to the center of the inner wall of the rolling ball (405); A support rod (407), one side of the support rod (407) is fixedly connected to one end of the rotating rod (406). One side of a push plate (408) is fixedly connected to one end of the support rod (407). One end of a compression spring (409) is fixedly connected to the other side of the push plate (408), and the other end of the compression spring (409) is fixedly connected to one side of the inner wall of a buffer groove (410); A cleaning mechanism (5) is provided inside the chute (403). The cleaning mechanism (5) includes a toothed plate (501). The toothed plate (501) meshes with a rotating gear (502). The outer wall of a rotating shaft (503) is rotatably connected to the inner wall of the rotating gear (502). One side of a telescopic rod (504) is provided at one end of the rotating shaft (503). One end of a cleaning brush (505) is fixedly connected to the outer wall of the telescopic rod (504); The side of the toothed plate (501) away from the rotating gear (502) is fixedly connected to the inner wall of one side of the chute (403). The outer wall of the rotating gear (502) is rotatably connected to the inner wall of the sliding rod (402), and the outer wall of the toothed plate (501) is slidably connected to the inner wall of the sliding rod (402); A plurality of groups of the cleaning brushes (505) are provided, and the plurality of groups of cleaning brushes (505) are equidistantly distributed on the outer wall of the telescopic rod (504); An anti-blocking mechanism (6) is provided on the outer wall of the rotating shaft (503). The anti-blocking mechanism (6) includes a first bevel gear (601). The first bevel gear (601) meshes with a second bevel gear (602). One end of a lead screw (603) is fixedly connected to one end of the second bevel gear (602). One side of a cam (604) is fixedly connected to the other end of the lead screw (603). The top of a knocking plate (605) is attached to the outer wall of the cam (604).

2. The gravel filling material conveying pipe for hydrogeological borehole construction according to claim 1, characterized in that: One side of the inner wall of the second conveying pipe (2) is fixedly connected to one side of a fixing plate (411). The bottom of the fixing plate (411) is fixedly connected to one end of a hanging ring (412). The other end of the hanging ring (412) is movably connected to one end of a hook (413). The other end of the hook (413) is fixedly connected to one end of a tension spring (414). The other end of the tension spring (414) is provided with a buffer plate (415). The outer wall of the buffer plate (415) is fixedly connected to the inner wall of a buffer pad (416).

3. A gravel filling material conveying pipe for hydrogeological borehole construction according to claim 1, characterized in that: The outer wall of the upper end of the sliding groove (403) is fixedly connected to the inner wall of the first conveying pipe (1). The outer wall of the lower end of the sliding groove (403) is fixedly connected to the inner wall of the second conveying pipe (2). The end of the telescopic spring (404) far from the sliding rod (402) is fixedly connected to the inner wall of the sliding groove (403).

4. A gravel filling material conveying pipe for hydrogeological borehole construction according to claim 2, characterized in that: One side of the buffer plate (415) is hinged to one side of the inner wall of the second conveying pipe (2). The outer wall of the buffer pad (416) is movably connected to the end of the sliding rod (402) far from the inner pipe (401).

5. A gravel filling material conveying pipe for hydrogeological borehole construction according to claim 4, characterized in that: The inner wall of the first bevel gear (601) is rotatably connected to the outer wall of a rotating shaft (503). The outer wall of the lead screw (603) is rotatably connected to the inner wall of the inner pipe (401). One side of the knocking plate (605) is hinged to one side of the inner wall of the inner pipe (401).

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