Test model for simulating flood discharge of reservoir dam

Abstract

The utility model discloses a test model for flood discharge simulation of a reservoir dam, and relates to the technical field of test models. The reservoir dam flood discharge simulation test model comprises a box body, a high-pressure water pipe is fixedly connected to the middle of the bottom end of the box body, a floral tube is fixedly connected to the bottom end in the box body, a water pressure gauge is arranged on the side, located outside the box body, of the high-pressure water pipe, and control mechanisms are arranged in the high-pressure water pipe and on the outer wall of the high-pressure water pipe; and the control mechanism comprises a fixing box, the fixing box fixedly sleeves the high-pressure water pipe, and the inner wall of the upper end of the high-pressure water pipe is rotationally connected with a rotating shaft. By arranging the control mechanism, the rotating shaft can be used for driving the baffle to rotate, so that opening and closing of the upper end of the high-pressure water pipe are controlled, water can enter the box body to form an anti-seepage curtain during opening, and compared with the mode that a plastic plug is used for hole pricking and water injection, recycling can be achieved, so that the experiment cost is reduced, and the experiment efficiency is improved. And the experiment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test models, in particular to a test model for simulating flood discharge from a reservoir dam. Background Art

[0002] The anti-seepage curtain is a continuous vertical seepage blocking facility formed by pouring anti-seepage materials into the foundation and slope connected to the water retaining structure, such as concrete anti-seepage wall, cement soil water cutoff wall, sheet pile or grouting curtain, etc. It is a preventive measure for seepage deformation.

[0003] For example, the Chinese patent: CN204990969U discloses the following technical solution: a test model for simulating the anti-seepage curtain of a reservoir dam is disclosed, including a box body, an inner flower tube is arranged in the box body, a high-pressure water pipe is arranged between two limiting tubes, the gaps between the flower tube and the high-pressure water pipe and the box body are filled with gravel, and a water pressure gauge is arranged on the high-pressure water pipe. The test model of this utility model can simulate the anti-seepage curtain geological body model of a reservoir dam that can be actually operated in the laboratory. Through the test, the total seepage volume and the change characteristics of the seepage pressure and their relationship with the curtain loss can be obtained.

[0004] However, in actual use, the above patent controls the water outflow by piercing a small hole in the plastic plug at the upper end of the high-pressure water pipe. After one use, the plastic plug needs to be replaced before the experiment can be carried out again, which is inefficient and costly. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a test model for simulating flood discharge of a reservoir dam, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented by the following technical solutions: a test model for simulating flood discharge of a reservoir dam, comprising a box body, a high-pressure water pipe is fixedly connected to the middle of the bottom end of the box body, a flower pipe is fixedly connected to the bottom end of the box body, a water pressure gauge is arranged on the side of the high-pressure water pipe located outside the box body, and a control mechanism is arranged inside and outside the high-pressure water pipe; the control mechanism comprises a fixed box, the fixed sleeve of the fixed box is arranged outside the high-pressure water pipe, a rotating shaft is rotatably connected to the inner wall of the upper end of the high-pressure water pipe, one end of the rotating shaft penetrates the high-pressure water pipe and extends to the inside of the fixed box, the outer wall of the rotating shaft located on one side of the high-pressure water pipe is fixedly connected to two baffles, the outer wall fixed sleeve of the rotating shaft located on one side of the fixed box is provided with a worm gear, the inside of the fixed box is fixedly connected to a motor A, the output end of the motor A is fixedly connected to a rotating rod, the outer wall fixed sleeve of the rotating rod is provided with a worm, and the worm is meshed with the worm gear.

[0006] Preferably, when the baffle plate is kept parallel to the cross section of the high-pressure water pipe, its outer wall is tightly fitted to the inner wall of the high-pressure water pipe.

[0007] Preferably, lifting devices are provided on both sides of the box body, and the lifting devices include a mounting plate, the output end of the mounting plate is fixedly connected to the motor B, the output end of the motor B is fixedly connected to a threaded rod, the outer wall of the threaded rod is threadedly connected to a movable plate, the inner side of the movable plate is fixedly connected to a connecting plate, and the bottom of the connecting plate is fixedly connected to a cover plate.

[0008] Preferably, the lifting device further comprises a limiting rod, wherein the limiting rod is fixedly connected to the upper end of the mounting plate, and the movable plate is slidably connected to the outer wall of the limiting rod.

[0009] Preferably, the length and width of the cover plate match the length and width of the interior of the box body, and when the cover plate is located inside the box body, the outer wall of the cover plate fits tightly with the inner wall of the box body.

[0010] Preferably, two flower tubes are provided and symmetrically arranged on both sides of the box body, and a plurality of small holes are opened on the outer wall of the flower tube.

[0011] The utility model provides a test model for simulating flood discharge from a reservoir dam. It has the following beneficial effects:

[0012] (1) The present application sets a control mechanism that can use the rotating shaft to drive the baffle to rotate, thereby controlling the opening and closing of the upper end of the high-pressure water pipe. When it is opened, water can enter the interior of the box to form an anti-seepage curtain. Compared with the method of using plastic plugs to pierce holes and inject water, it can be recycled, thereby reducing experimental costs and improving experimental efficiency.

[0013] (2) The present application provides a lifting device to move the cover plate downward after the cement slurry is injected until it contacts the upper surface of the cement slurry, thereby avoiding the slurry from spraying out. At the same time, the height of the cover plate can be controlled to meet the experimental needs of different amounts of cement slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a front cross-sectional schematic diagram of the structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the top cross-sectional structure of the utility model;

[0017] Figure 4 For this utility model Figure 3 Enlarged structural diagram at A in the middle.

[0018] In the figure: 1. box body; 2. high-pressure water pipe; 3. flower tube; 4. water pressure gauge; 501. fixed box; 502. rotating shaft; 503. baffle; 504. worm gear; 505. motor A; 506. rotating rod; 507. worm; 601. mounting plate; 602. motor B; 603. threaded rod; 604. moving plate; 605. connecting plate; 606. cover plate; 607. limit rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Embodiment 1

[0021] See also Figure 1-4 A test model for flood discharge simulation of a reservoir dam comprises a box body 1, a high-pressure water pipe 2 is fixedly connected to the middle of the bottom end of the box body 1, a flower pipe 3 is fixedly connected to the bottom end of the box body 1, a water pressure gauge 4 is arranged on one side of the high-pressure water pipe 2 located outside the box body 1, and a control mechanism is arranged inside and outside the high-pressure water pipe 2; the control mechanism comprises a fixed box 501, the fixed box 501 is fixedly sleeved on the outside of the high-pressure water pipe 2, a rotating shaft 502 is rotatably connected to the inner wall of the upper end of the high-pressure water pipe 2, and the rotating shaft 502 One end of the rotating shaft 502 passes through the high-pressure water pipe 2 and extends to the interior of the fixed box 501. The outer wall of the rotating shaft 502 located on the inner side of the high-pressure water pipe 2 is fixedly connected to two baffles 503. The rotating shaft 502 is located on one side of the fixed box 501 and the outer wall fixed sleeve is provided with a worm gear 504. The interior of the fixed box 501 is fixedly connected to a motor A505. The output end of the motor A505 is fixedly connected to a rotating rod 506. The outer wall fixed sleeve of the rotating rod 506 is provided with a worm 507, and the worm 507 is meshed with the worm gear 504.

[0022] When the baffle 503 is kept parallel to the cross section of the high-pressure water pipe 2 , its outer wall is closely fitted to the inner wall of the high-pressure water pipe 2 .

[0023] There are two flower tubes 3, which are symmetrically arranged on both sides of the box body 1, and the outer wall of the flower tube 3 is provided with a plurality of small holes.

[0024] In this embodiment, by setting up a control mechanism, the rotating shaft 502 can be used to drive the baffle 503 to rotate, thereby controlling the opening and closing of the upper end of the high-pressure water pipe 2, and then when it is opened, water can enter the interior of the box 1 to form an anti-seepage curtain. Compared with the method of using plastic plugs to pierce holes and inject water, it can be recycled, thereby reducing experimental costs and improving experimental efficiency.

[0025] When in use, first inject cement slurry into the box body 1. When the cement slurry has not solidified, start the motor A505 to drive the rotating rod 506 to rotate, and then the worm 507 will rotate accordingly, and then the worm wheel 504 meshing therewith will rotate accordingly, and then drive the rotating shaft 502 to rotate. When the baffle 503 on the outer wall of the rotating shaft 502 is not parallel to the cross-section of the high-pressure water pipe 2, water can enter the interior of the box body 1 and form an impermeable curtain. After the experiment is completed, the reverse operation can make the baffle 503 close the high-pressure water pipe 2, and then the curtain body inside the box body 1 can be poured out and can continue to be used.

[0026] Embodiment 2

[0027] See also Figure 1-4 On the basis of the first embodiment, lifting devices are provided on both sides of the box body 1, and the lifting devices include a mounting plate 601, the output end of the mounting plate 601 is fixedly connected to the motor B602, the output end of the motor B602 is fixedly connected to the threaded rod 603, the outer wall of the threaded rod 603 is threadedly connected to the moving plate 604, the inner side of the moving plate 604 is fixedly connected to the connecting plate 605, and the bottom of the connecting plate 605 is fixedly connected to the cover plate 606.

[0028] The lifting device further includes a limiting rod 607 , which is fixedly connected to the upper end of the mounting plate 601 , and the movable plate 604 is slidably connected to the outer wall of the limiting rod 607 .

[0029] The length and width of the cover plate 606 match the length and width of the interior of the box body 1 . When the cover plate 606 is located inside the box body 1 , its outer wall is tightly fitted with the inner wall of the box body 1 .

[0030] In this embodiment, the lifting device can move the cover plate 606 downward after the cement slurry is injected until it contacts the upper surface of the cement slurry, thereby preventing the slurry from spraying out. At the same time, the height of the cover plate 606 can be controlled to meet the experimental needs of different amounts of cement slurry.

[0031] During use, based on Example 1, after the cement slurry is injected, the motor B602 can be started to drive the threaded rod 603 to rotate, and then the movable plate 604 threadedly connected to its outer wall will move downward under the restriction of the limit rod 607, and then the cover plate 606 will be driven downward through the connecting plate 605 until it contacts the upper surface of the cement slurry, thereby preventing the slurry from spraying out.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A test model for simulating flood discharge from a reservoir dam, comprising a box (1), characterized in that: A high-pressure water pipe (2) is fixedly connected to the middle of the bottom end of the box body (1), a flower pipe (3) is fixedly connected to the inner bottom end of the box body (1), a water pressure gauge (4) is provided on one side of the high-pressure water pipe (2) located outside the box body (1), and a control mechanism is provided on the inner and outer walls of the high-pressure water pipe (2); The control mechanism comprises a fixed box (501), the fixed box (501) is fixedly sleeved on the outside of the high-pressure water pipe (2), the inner wall of the upper end of the high-pressure water pipe (2) is rotatably connected to a rotating shaft (502), one end of the rotating shaft (502) penetrates the high-pressure water pipe (2) and extends to the inside of the fixed box (501), the outer wall of the rotating shaft (502) located on one side of the inside of the high-pressure water pipe (2) is fixedly connected to two baffles (503), the outer wall of the rotating shaft (502) located on one side of the fixed box (501) is fixedly sleeved with a worm gear (504), the inside of the fixed box (501) is fixedly connected to a motor A (505), the output end of the motor A (505) is fixedly connected to a rotating rod (506), the outer wall of the rotating rod (506) is fixedly sleeved with a worm gear (507), and the worm gear (507) is meshed with the worm gear (504).

2. The test model for simulating flood discharge from a reservoir dam according to claim 1, characterized in that: When the baffle (503) is kept parallel to the cross section of the high-pressure water pipe (2), its outer wall is tightly fitted to the inner wall of the high-pressure water pipe (2).

3. The test model for simulating flood discharge from a reservoir dam according to claim 2, characterized in that: A lifting device is provided on both sides of the box body (1), and the lifting device comprises a mounting plate (601), the output end of the mounting plate (601) is fixedly connected to a motor B (602), the output end of the motor B (602) is fixedly connected to a threaded rod (603), the outer wall of the threaded rod (603) is threadedly connected to a moving plate (604), the inner side of the moving plate (604) is fixedly connected to a connecting plate (605), and the bottom of the connecting plate (605) is fixedly connected to a cover plate (606).

4. The test model for simulating flood discharge from a reservoir dam according to claim 3, characterized in that: The lifting device further comprises a limiting rod (607), wherein the limiting rod (607) is fixedly connected to the upper end of the mounting plate (601), and the movable plate (604) is slidably connected to the outer wall of the limiting rod (607).

5. The test model for simulating flood discharge from a reservoir dam according to claim 4, characterized in that: The length and width of the cover plate (606) match the length and width of the interior of the box body (1); when the cover plate (606) is located inside the box body (1), its outer wall is tightly fitted with the inner wall of the box body (1).

6. The test model for simulating flood discharge from a reservoir dam according to claim 1, characterized in that: Two of the flower tubes (3) are symmetrically arranged on both sides of the interior of the box body (1), and a plurality of small holes are opened on the outer wall of the flower tube (3).

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