Sectional type debris flow interception system

Abstract

The utility model belongs to the technical field of hillside protection engineering facilities, and provides a sectional type debris flow interception system which comprises two interception mechanisms, the two interception mechanisms are located at the upstream position and the downstream position of a hillside channel respectively, and each interception mechanism comprises a speed brake and a sliding groove. The speed brake is hinged to the hilly land, and a hinge piece is located on the upstream of the speed brake. A sliding part is arranged in the sliding groove in a sliding fit mode and slides in the vertical direction, a supporting rod is fixed to the top end of the sliding part, the top end of the supporting rod abuts against the bottom face of the speed brake, an elastic air bag is arranged at the bottom in the sliding groove, the elastic air bag is located below the sliding part, and the elastic air bag is filled with gas. The elastic air bags of the two intercepting mechanisms are communicated through an air guide pipe. The intercepting system not only can avoid rigid collision between the speed brake and debris flow and prolong the service life of the speed brake, but also can remind surrounding personnel of possible disasters such as debris flow on the upstream.

Description

Technical Field

[0001] The utility model belongs to the technical field of hillside protection engineering facilities, and in particular relates to a segmented debris flow interception system. Background Art

[0002] Debris flow often occurs in valleys or on slopes. It is a solid-liquid two-phase fluid filled with a large amount of mud, sand, rocks and boulders, and is in a state of motion such as viscous laminar flow or dilute turbulent flow. It has the characteristics of fast flow rate, large flow, strong destructive power and suddenness. Once a debris flow occurs, it will destroy various transportation facilities such as roads, railways, tunnels, etc., and at the same time block rivers, bury crops and damage buildings.

[0003] In the prior art, debris flow protection projects mainly include sand-blocking dams, which can intercept debris flows. However, when there are a large number of debris flows, the impact force is large, which may damage the sand-blocking dam and make it unable to continue to intercept debris flows. The service life of the dam is short, and when a debris flow occurs, downstream personnel cannot discover it in time and avoid the dangerous area. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a segmented debris flow interception system, in which interception mechanisms are arranged at both upstream and downstream positions, which can play a role of multiple deceleration. At the same time, the deceleration plate of the downstream interception mechanism is tilted up to alert surrounding people of the danger.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a segmented debris flow interception system, comprising at least two groups of interception mechanisms, the two groups of interception mechanisms are respectively located at the upstream and downstream positions of the hillside channel, and the interception mechanisms include a deceleration plate and a sliding groove opened at the bottom of the hillside channel;

[0006] The speed brake is hinged to the hillside ground through a hinge, and the hinge is located upstream of the speed brake;

[0007] A sliding member is slidably fitted in the sliding groove, and the sliding member slides in a vertical direction. A support rod is fixed to the top of the sliding member, and the top of the support rod abuts against the bottom surface of the speed brake. An elastic airbag is provided at the bottom of the sliding groove, and the elastic airbag is located below the sliding member. The elastic airbag is filled with gas, and the two groups of elastic airbags of the intercepting mechanism are connected through an air duct.

[0008] Preferably, a counterweight is fixed on the sliding member of the downstream interception mechanism.

[0009] Preferably, the top end of the support rod is a curved structure.

[0010] Preferably, the sliding member is provided with air guide holes adapted to the air guide tube at upper and lower parts, and the air guide tube is inserted into the air guide holes.

[0011] Preferably, the projection of the speed brake on the ground covers the entire sliding groove.

[0012] Preferably, a baffle is fixed on the top of the sliding groove, and through holes matching the support rod are provided on the upper and lower parts of the baffle. The support rod passes through the through hole, the outer wall of the support rod and the inner wall of the through hole have a clearance fit, and the top of the baffle is flush with the ground.

[0013] Preferably, a limiting plate is fixed on the inner wall of the sliding groove.

[0014] Preferably, the bottom surface of the speed brake of the downstream interception mechanism is coated with warning paint.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a segmented debris flow interception system, wherein a group of interception mechanisms are respectively arranged at the upstream and downstream of the hillside channel. When the debris flow passes through the upstream interception mechanism, the debris flow can bounce up into the air along the speed brake, and part of the kinetic energy of the debris flow is converted into gravitational potential energy. At the same time, the speed brake will rotate downward under the impact of the debris flow and the gravity, press the support rod, so that the sliding part slides downward, and press the elastic airbag, so that the elastic airbag of the upstream interception mechanism is compressed, and the gas is pressed into the elastic airbag of the downstream interception mechanism, thereby making the elastic airbag of the downstream interception mechanism larger, so that its sliding part slides upward, and its support rod lifts its speed brake upward, so that its speed brake tilts upward, and the debris flow can be intercepted again. On the one hand, the rigid collision between the speed brake and the debris flow can be avoided, and the service life of the speed brake can be extended. At the same time, it can play a certain energy dissipation role, and when there is continuous debris flow in the upstream, the upstream speed brake is subjected to continuous force, so that the downstream speed brake always keeps the tilted state, so that two interception and energy dissipation can be performed. On the other hand, the speed brake of the downstream interception mechanism is tilted higher to serve as a warning, reminding surrounding personnel that disasters such as mudslides may occur upstream. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic side view of the structure of a segmented debris flow interception system provided by an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the side view structure of a segmented debris flow interception system provided by an embodiment of the utility model after a debris flow occurs upstream;

[0019] Figure 3A schematic side structural diagram of a sliding trough and related parts of a segmented debris flow interception system provided in an embodiment of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1. Speed ​​brake; 2. Sliding groove; 3. Articulated part; 4. Sliding part; 5. Support rod; 6. Elastic airbag; 7. Air guide tube; 8. Counterweight; 9. Baffle; 10. Through hole; 11. Limit plate. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0023] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0024] Example 1

[0025] like Figure 1-2 As shown, this embodiment provides a segmented debris flow interception system, including two groups of interception mechanisms, which are respectively located at the upstream and downstream positions of the hillside channel, and the interception mechanisms include a speed reducer 1 and a sliding groove 2 opened at the bottom of the hillside channel.

[0026] The deceleration plate 1 is hinged to the hillside ground through a hinge 3 , and the hinge 3 is located upstream of the deceleration plate 1 . The axial direction of the hinge 3 is perpendicular to the extension direction of the hillside channel, that is, the deceleration plate 1 can swing up and down around the hinge 3 .

[0027] The top opening of the sliding groove 2 is flush with the ground. A sliding member 4 is slidably fitted in the sliding groove 2. The sliding member 4 slides in the vertical direction. For example, a vertical slide rail is fixed on the inner wall of the sliding groove 2. The sliding member 4 slidably fits with the slide rail so that the sliding member 4 can move up and down. A support rod 5 is fixed to the top of the sliding member 4. The top of the support rod 5 abuts against the bottom surface of the speed brake 1. An elastic airbag 6 is provided at the bottom of the sliding groove 2. The elastic airbag 6 is located below the sliding member 4. The elastic airbag 6 is filled with gas. The sliding member 4 can be a plate-like structure, and the plane area of ​​the sliding member 4 is slightly smaller than the plane area of ​​the sliding groove 2. The sliding member 4 can be in direct contact with the elastic airbag 6. The elastic airbag 6 can be a high-strength elastic airbag. The two groups of elastic airbags 6 of the interception mechanism are connected through an air guide tube 7.

[0028] Based on the above structure, when the debris flow passes through the upstream interception mechanism, the debris flow can bounce into the air along the upstream speed brake 1, converting part of the kinetic energy of the debris flow into gravitational potential energy. At the same time, the upstream speed brake 1 will rotate downward under the impact of the debris flow and gravity, pressing the upstream support rod 5, so that the upstream sliding member 4 slides downward, and pressing the upstream elastic airbag 6, so that the upstream elastic airbag 6 is compressed, and the gas inside it is pressed into the downstream elastic airbag 6, thereby making the downstream elastic airbag 6 larger, so that the downstream sliding member 4 slides upward, and the downstream support rod 5 lifts the downstream speed brake 1 upward, so that the downstream speed brake 1 tilts upward, and the debris flow flowing to the downstream can be intercepted. On the one hand, the air pressure shock absorption can avoid the rigid collision between the speed brake 1 and the debris flow, prolong the service life of the speed brake 1, and play a certain role in energy dissipation. When debris flow continues to occur upstream, the upstream speed brake 1 will be subjected to continuous force, so that the downstream speed brake 1 always remains in an upward tilted state, so that two interceptions can be performed, and when the downstream speed brake 1 is impacted, the energy can be transferred to the upstream speed brake 1, and energy is dissipated mutually. On the other hand, the higher tilting angle of the downstream speed brake 1 can serve as a warning, reminding the surrounding personnel that disasters such as debris flow may occur upstream. Moreover, the bottom surface of the downstream speed brake 1 can be coated with warning paint, and the warning effect is more obvious.

[0029] In this embodiment, in the absence of external force, the elastic airbags 6 of the two groups of the intercepting mechanisms are subjected to the same force, and the angles of the two groups of speed brakes 1 should be the same, so that the energy dissipation effect of the upstream speed brake 1 is weaker. In order to enhance the energy dissipation effect of the upstream speed brake 1. In this embodiment, a counterweight 8 is fixed to the sliding member 4 of the downstream intercepting mechanism. In this way, the elastic airbag 6 of the downstream is subjected to greater force, and more gas can be pressed into the elastic airbag 6 of the upstream, making the upstream speed brake 1 steeper. When the debris flow passes through the upstream speed brake 1, when pressing the upstream speed brake 1, part of the kinetic energy needs to be converted into the gravitational potential energy of the counterweight 8, so that the energy dissipation effect of the upstream speed brake 1 is better.

[0030] In this embodiment, the top end of the support rod 5 may be a curved structure, so that the friction between the top end of the support rod 5 and the bottom surface of the speed reducer 1 is smaller.

[0031] In this embodiment, a limit plate 11 is fixed on the inner wall of the sliding groove 2. The limit plate 11 can prevent the sliding member 4 from moving down too much, causing the elastic airbag 6 or the air guide tube 7 to be crushed. At the same time, it can prevent the deceleration plate 1 from swinging down too much and failing to play a significant energy dissipation role.

[0032] In this embodiment, the projection of the deceleration plate 1 on the ground can cover the entire sliding groove 2. This can prevent the debris flow from entering the sliding groove 2, causing the sliding member 4 to be unable to move up and down normally.

[0033] Further, such as Figure 3 As shown, a baffle 9 is fixed on the top of the sliding groove 2, and a through hole 10 matching the support rod 5 is penetrated from top to bottom of the baffle 9, and the support rod 5 passes through the through hole 10, and the outer wall of the support rod 5 is gap-matched with the inner wall of the through hole 10, and the top of the baffle 9 is flush with the ground. The baffle 9 can fully cover the sliding groove 2 to prevent debris from entering the interior of the sliding groove 2, and ensure that the sliding member 4 can move up and down normally.

[0034] In this embodiment, the air guide pipe 7 can be pre-buried in the ground, which has a higher construction cost, but the air guide pipe 7 can be better protected and has a longer service life.

[0035] Example 2

[0036] On the basis of Example 1, the sliding member 4 is provided with air guide holes adapted to the air guide tube 7 from top to bottom, and the air guide tube 7 is inserted into the air guide holes. Figure 3 As shown, after one end of the air guide tube 7 is connected to the elastic airbag 6, the other end can pass through the sliding member 4 from the air guide hole and extend to the ground without being buried under the ground, which reduces the construction cost.

[0037] It should be noted that when the baffle plate 9 is fixed at the top of the sliding groove 2, the baffle plate 9 should be penetrated from top to bottom with through holes adapted to the air duct 7, so that the air duct 7 can pass through the baffle plate 9 from the through holes and extend to the ground.

[0038] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.

[0039] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0040] The above is only a preferred embodiment of the utility model, and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A segmented debris flow interception system, characterized in that: It comprises at least two groups of interception mechanisms, the two groups of interception mechanisms are respectively located at the upstream and downstream positions of the hillside channel, and the interception mechanisms include a deceleration plate (1) and a sliding groove (2) opened at the bottom of the hillside channel; The speed reducer (1) is hinged to the hillside ground via a hinge (3), and the hinge (3) is located upstream of the speed reducer (1); A sliding member (4) is slidably matched in the sliding groove (2), and the sliding member (4) slides in the vertical direction. A support rod (5) is fixed to the top of the sliding member (4), and the top of the support rod (5) abuts against the bottom surface of the deceleration plate (1). An elastic airbag (6) is provided at the bottom of the sliding groove (2), and the elastic airbag (6) is located below the sliding member (4). The elastic airbag (6) is filled with gas, and the two groups of elastic airbags (6) of the interception mechanism are connected through an air guide pipe (7).

2. A segmented debris flow interception system according to claim 1, characterized in that: A counterweight block (8) is fixed on the sliding member (4) of the downstream interception mechanism.

3. A segmented debris flow interception system according to claim 1, characterized in that: The top end of the support rod (5) is a curved structure.

4. A segmented debris flow interception system according to claim 1, characterized in that: The sliding member (4) is provided with air guide holes adapted to the air guide tube (7) at the top and bottom, and the air guide tube (7) is inserted into the air guide holes.

5. The segmented debris flow interception system according to claim 1, characterized in that: The projection of the speed reducer (1) on the ground covers the entire sliding groove (2).

6. The segmented debris flow interception system according to claim 1, characterized in that: A baffle (9) is fixed at the top of the sliding groove (2); a through hole (10) matching the support rod (5) is penetrated from top to bottom of the baffle (9); the support rod (5) passes through the through hole (10); the outer wall of the support rod (5) is gap-matched with the inner wall of the through hole (10); and the top of the baffle (9) is flush with the ground.

7. The segmented debris flow interception system according to claim 1, characterized in that: A limiting plate (11) is fixed on the inner wall of the sliding groove (2).

8. The segmented debris flow interception system according to claim 1, characterized in that: The bottom surface of the speed brake (1) of the downstream interception mechanism is coated with warning paint.

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