Safe operation mechanism for canal slope

Abstract

The utility model relates to the technical field of water conservancy construction engineering, in particular to a canal slope safe operation mechanism, which has the main technical scheme that the canal slope safe operation mechanism comprises an inner drainage pipeline extending into a canal and a non-return drainage valve arranged at the end part of the inner drainage pipeline, and a groove structure capable of accommodating the non-return drainage valve is arranged on the slope of the canal. A cover plate structure is arranged on the groove; a plurality of water outlet holes are formed in the cover plate structure. According to the safe operation mechanism for the canal slope, when flowing water in a canal sloshes, the phenomenon that a non-return type drainage valve at the end of an inner drainage pipeline is opened disorderly by sloshing water waves can be effectively avoided, and safe operation of the non-return valve can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to water conservancy construction engineering technology, in particular to a water channel slope safety operation mechanism. Background Art

[0002] In order to prevent the slopes of rivers and canals flowing through the high mountains from collapsing due to the washing and infiltration of rainwater (especially the central canal opened on the slope of the eastern foot of Taihang Mountain), Figure 1 As shown, a drainage ditch and several interception wells are arranged at the bottom of the slope, and an inner drainage pipe connected to the ditch is arranged at the bottom of the interception well, that is, rainwater flowing down from the mountains or high slopes is intercepted and discharged by the drainage ditch, which effectively prevents scouring and damage to the artificially built or naturally formed canal slopes. The underground seepage formed by seeping into the high slopes of the mountains is concentrated in the interception wells and discharged into the ditch through the inner drainage pipe. In order to prevent the ditch water from carrying sediment back into the inner drainage pipe to block it, a flap-type check drain valve is usually arranged at the end of the inner drainage pipe. When the water pressure in the inner drainage pipe is greater than the set value, the drain valve will be opened to discharge, and when the water pressure is less than the set value, the drain valve will be closed, which can effectively prevent the backflow of flowing water in the ditch.

[0003] During the actual operation of the river and canal slope safety operation mechanism constructed as above, there is a problem that when the water in the ditch resonates and sways, the resonant water waves will open the above-mentioned check valve, and under severe conditions, the check valve will be damaged, causing the safety operation mechanism to fail, seriously affecting the operation safety of the river and canal. Utility Model Content

[0004] The utility model aims to provide a water channel slope safety operation mechanism, which is used to solve the problem that when the water in the ditch sways, the non-return drainage valve arranged at the end of the inner drainage pipe is opened disorderly.

[0005] In order to solve the above problems, the utility model provides a water channel slope safety operation mechanism, comprising an inner drainage pipe extending into the ditch and a non-return drain valve arranged at the end thereof, characterized in that a groove structure capable of accommodating the non-return drain valve is provided on the slope of the ditch, and a cover plate mechanism is provided on the groove structure, and a plurality of water outlet holes are provided on the cover plate mechanism.

[0006] The water channel slope safety operation mechanism provided by the utility model also has the following technical features:

[0007] Furthermore, the cover plate mechanism is arranged perpendicular to the bottom of the ditch.

[0008] Furthermore, the cover plate mechanism is arranged obliquely corresponding to the ditch slope.

[0009] Furthermore, the axial directions of the plurality of water outlet holes arranged on the cover plate mechanism are arranged at an acute angle to the plate surface of the cover plate mechanism.

[0010] Furthermore, when the plurality of water outlet holes are arranged in a multi-layer circular shape, the axial directions of the plurality of water outlet holes are arranged in a divergent shape.

[0011] Furthermore, the plurality of water outlet holes are in a trumpet-shaped structure with a large inner opening and a small outer opening.

[0012] Furthermore, the total area of ​​the outer openings of the plurality of water outlets is more than 1.3 times the area of ​​the water outlet of the non-return drain valve.

[0013] Furthermore, a threaded structure is provided on the inner side surfaces of the plurality of water outlet holes.

[0014] Furthermore, the radial cross-section of the plurality of water outlet holes is a rectangular structure.

[0015] Furthermore, the structure of the check drain valve includes a valve body formed by a valve cylinder, a valve cover covering the end of the valve cylinder, and a valve core mechanism arranged in the valve body to control the opening and closing of the valve cover; wherein the guide rod constituting the valve core mechanism is movably connected to the valve cover through a connecting mechanism.

[0016] The utility model has the following beneficial effects: firstly, since a groove structure capable of accommodating a non-return drain valve is arranged on the ditch slope in the structure constituting the safe operation mechanism, and a cover plate mechanism with a plurality of water outlets is arranged on the groove structure; therefore, it is possible to effectively prevent the phenomenon that the non-return drain valve at the end of the inner pipe is disorderly opened by the swaying water waves when the water in the ditch is sloshing, and the safe operation of the non-return drain valve can be effectively guaranteed; secondly, since a plurality of water outlets are arranged on the cover plate mechanism constituting the groove, and the axial direction of the water outlet holes is arranged at an acute angle to the plate surface of the cover plate mechanism, or when a plurality of water outlet holes are arranged in a multi-layer circular shape and their axial directions are arranged in a divergent shape, or a plurality of water outlet holes are arranged in a multi-layer circular shape and their axial directions are arranged in a divergent shape, The water outlet hole is a trumpet-shaped structure with a large inner opening and a small outer opening, or a threaded structure is provided on the inner side surface of some of the water outlet holes, or the radial cross-section of some of the water outlet holes is a rectangular structure; when the swaying water in the ditch enters the groove, disordered turbulent water waves are formed, which effectively reduces the influence of the swaying water waves on the non-return drain valve, and can further ensure the safe operation of the non-return valve; thirdly, since the guide rod of the valve core mechanism of the non-return drain valve arranged at the end of the inner discharge pipe is movably connected to the valve cover by a connecting mechanism, when in use, the guide rod can lift one side (part) of the valve cover to open it, so that it has the characteristics of sensitive opening and tighter return seal, which is particularly suitable for the setting of the safe operation mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the cross-sectional structure of the prior art water channel slope safety operation mechanism;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the water channel slope safety operation mechanism according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic cross-sectional structure diagram of a second water channel slope safety operation mechanism according to an embodiment of the utility model;

[0020] Figure 4 It is a schematic diagram of the planar structure of the cover mechanism of an embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of a first cross-sectional structure of a cover plate mechanism according to an embodiment of the utility model;

[0022] Figure 6 A second cross-sectional structural schematic diagram of the cover plate mechanism of an embodiment of the utility model;

[0023] Figure 7 This is a schematic diagram of the planar structure of the second cover mechanism of the embodiment of the utility model;

[0024] Figure 8 It is a schematic structural diagram of a non-return type drain valve in an embodiment of the utility model. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0026] like Figure 2 In the embodiment of the water channel slope safety operation mechanism of the utility model shown, the water channel slope safety operation mechanism includes a seepage interception well 12 and an inner drainage pipe 14 connected thereto and extending into the ditch 13, a groove structure 17 is provided on the ditch slope 20, wherein a non-return drain valve 15 provided at the end of the inner drainage pipe 14 is fixed in the groove structure 17, and an inclined cover plate mechanism 18 consistent with the ditch slope 20 is provided on the groove structure 17, the cover plate mechanism 18 is arranged in a corresponding oblique direction to the ditch slope 20, and a plurality of water outlet holes 19 are provided on the cover plate mechanism 18.

[0027] The above-mentioned canal slope safety operation mechanism is particularly suitable for the South-to-North Water Diversion Middle Route Canal opened on the slope at the eastern foot of Taihang Mountain. Its working mechanism is as follows: rainwater flowing down from the high slope is intercepted and discharged by the intercepting ditch 11, effectively preventing scouring and damage to the artificially built or naturally formed ditch slope 20; underground seepage formed by seeping into the high slope is concentrated in the intercepting well 12, and is discharged into the groove structure 17 through the non-return drain valve 15 at its end by the internal drainage pipe 14, and enters the ditch 13 through a plurality of water outlet holes 19 on its cover mechanism 18; when the water in the ditch 13 sways to produce resonant water waves, the obstruction of the cover mechanism 18 can effectively overcome the formed resonant water waves, which squeeze and pull back the non-return drain valve 15 after passing through the water outlet holes 19, thereby pulling open its cover body, causing damage and failure thereof.

[0028] In the structure constituting the above-mentioned canal slope safety operation mechanism, the groove structure 17 for fixing the non-return type drain valve 15 can be as follows: Figure 3 The independent mechanism fixed on the slope 20 shown in the figure has a cover mechanism 18 arranged perpendicularly to the ditch bottom 21;

[0029] In order to further make the turbulence formed after the resonant water waves in the ditch 13 enter the water outlet holes 19 through the plurality of water outlet holes 19 arranged on the cover plate mechanism 18 more disordered, the force of squeezing the non-return drain valve 15 and pulling open its cover body is further reduced.

[0030] like Figure 4 and Figure 5 As shown, the axial direction of the water outlet hole 19 is set at an acute angle R with the plate surface of the cover plate mechanism 18. When a plurality of water outlet holes 19 are arranged in a multi-layer circular shape, and the axial direction of the water outlet hole 19 is set at an acute angle R with the plate surface of the cover plate mechanism 18, the axial direction of the plurality of water outlet holes is in a multi-layer circular divergent shape;

[0031] like Figure 6 As shown, the plurality of water outlet holes 19 are in a trumpet-shaped structure with a large inner opening 191 on the groove structure 17 side and a small outer opening 192 on the ditch side; and in order to improve the drainage of the cover plate mechanism 18, the total area of ​​the outer openings of the plurality of water outlet holes 19 is more than 1.3 times the area of ​​the water outlet holes constituting the non-return drain valve 15;

[0032] Certainly several water outlet holes 19 are either columnar holes or Figure 6 The trumpet-shaped structural holes shown have thread structures 193 in different directions on the inner side surfaces of different holes;

[0033] The plurality of water outlet holes 19 on the cover plate mechanism 18 can be as follows Figure 4 The circular hole shown can also be Figure 7The radial cross section shown is a combination of multiple rectangular structural holes 22. The resonant water waves entering the rectangular structural holes 22 will also form disordered turbulence after entering the groove structure 17, which will also greatly reduce the squeezing and pulling of the check valve cover.

[0034] In order to further improve the reliability of the non-return drain valve 15 provided at the end of the inner drain pipe 14, the structure of the non-return drain valve 15 is as follows: Figure 8 As shown, the valve body 1 consists of a valve cylinder, a valve cover 2 covering the end of the valve cylinder, and a valve core mechanism 3 arranged in the valve body 1 to control the opening and closing of the valve cover 2; a guide rod 31 constituting the valve core mechanism 3 passes through a central hole 33 constituting a fixing frame 32 of the valve core mechanism 3, and its end is movably connected to a double-ear structure 211 arranged at the center of the valve cover 2 through an axis mechanism 212; that is, the above-mentioned valve cover 2 can rotate around the axis mechanism 212.

[0035] When the utility model is used, after the seepage water 5 of the inner discharge pipe 14 enters the valve body 1, the valve cover 2 is directly pushed open, and the seepage water passes through the circumference of the valve cover and is discharged from the valve body along the flow path F; when the seepage water pressure becomes smaller, the return spring mechanism 37 constituting the valve core mechanism 3 controls the guide rod 31 to pull the valve cover back to the valve body 1, thereby realizing the switching function of the check valve.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A water channel slope safety operation mechanism, comprising an inner drainage pipe extending into the ditch and a non-return drainage valve arranged at the end thereof, characterized in that: A groove structure capable of accommodating the non-return type drain valve is arranged on the side slope of the ditch, and a cover plate mechanism is arranged on the groove structure, and a plurality of water outlet holes are arranged on the cover plate mechanism.

2. The water channel slope safety operation mechanism according to claim 1, characterized in that: The cover plate mechanism is arranged vertically to the bottom of the ditch.

3. The water channel slope safety operation mechanism according to claim 1, characterized in that: The cover plate mechanism is arranged obliquely corresponding to the ditch slope.

4. The water channel slope safety operation mechanism according to claim 1, characterized in that: The axial directions of the plurality of water outlet holes arranged on the cover plate mechanism are arranged at an acute angle to the plate surface of the cover plate mechanism.

5. The water channel slope safety operation mechanism according to claim 1, characterized in that: When the plurality of water outlet holes are arranged in a multi-layer circular shape, the axial directions of the plurality of water outlet holes are arranged in a divergent shape.

6. The water channel slope safety operation mechanism according to claim 1, characterized in that: The plurality of water outlet holes are in a trumpet-shaped structure with a large inner opening and a small outer opening.

7. The water channel slope safety operation mechanism according to claim 6, characterized in that: The total area of ​​the outer openings of the plurality of water outlet holes is more than 1.3 times the area of ​​the water outlet holes of the non-return drain valve.

8. The water channel slope safety operation mechanism according to claim 1, characterized in that: The inner side surfaces of the plurality of water outlet holes are provided with thread structures.

9. The water channel slope safety operation mechanism according to claim 1, characterized in that: The radial cross-sections of the plurality of water outlet holes are rectangular structures.

10. The water channel slope safety operation mechanism according to claim 1, characterized in that: The structure of the non-return drain valve includes a valve body formed by a valve cylinder, a valve cover covering the end of the valve cylinder, and a valve core mechanism arranged in the valve body to control the opening and closing of the valve cover; wherein the guide rod constituting the valve core mechanism is movably connected to the valve cover through a connecting mechanism.

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