A flood embankment for water conservancy projects

Abstract

The present invention belongs to the technical field of flood control dams, and discloses a flood control dam for water conservancy projects, comprising a bottom plate, a dam body disposed on the top of the bottom plate near the downstream, two limiting guardrails disposed on the front and rear sides of the dam body on the top of the bottom plate, positioning strips disposed on the backs of the two limiting guardrails, and the positioning strips are inserted into the banks of the riverbed. In the present invention, since the buffer dam needs to continuously overcome friction and other resistances when sliding to gradually approach the bottom plate, it can reduce the impact intensity of flood waves, thereby reducing the direct impact intensity on the dam body. When the damping dam is flipped and the slider is lifted, the resistance to the movement of the buffer dam can be further increased, thereby further improving the effect of reducing the impact intensity. At the same time, due to the lifting of the lifting slider, floating foreign objects that are lifted by the waves and washed over the buffer dam can be received and pushed, so that they slide to the top of the dam body under the action of the inclined surface of the lifting slider for easy recovery.

Description

Technical Field

[0001] The present invention belongs to the technical field of flood control dams, and in particular relates to a flood control dam for water conservancy projects. Background Art

[0002] At present, there are many types of flood control dams used in water conservancy projects, but most of them achieve flood control and water blocking by improving the structure of the dam itself. However, no matter what improvements are made to the structure of the dam itself, it is impossible to avoid the direct impact of floods on the dam. Therefore, the flood will directly damage the dam and cause huge losses. Once the dam is damaged, it will not be able to continue to provide flood control and water blocking functions, and then downstream flooding will occur, thereby increasing losses; and during the long-term blocking of floods, waves will continue to hit the dam, accelerating the damage of the dam, and causing floating foreign objects on the water surface to gather at the upstream end of the dam, thereby increasing the probability of blocking the dam's flood discharge outlet, which will eventually lead to the dam's flood discharge outlet being unable to discharge floods in time, and then the rapidly rising flood will rapidly increase the pressure on the dam, making it difficult to control the flood pressure within the safe range of the dam's blocking, and thus it is easy for the flood to break through the dam.

[0003] Therefore, it is necessary to develop a flood control dam with good indirect water blocking and flood prevention strength and longer service life. Summary of the Invention

[0004] The object of the present invention is to provide a flood embankment for water conservancy projects to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a flood control embankment for water conservancy projects, comprising a base plate, a dam body is arranged on the top of the base plate near the downstream, two limiting guardrails are arranged on the front and rear sides of the dam body on the top of the base plate, positioning bars are arranged on the backs of the two limiting guardrails, and the positioning bars are inserted into the two sides of the riverbed, two front and rear first slide rails are arranged on the top of the base plate, and the top of each of the first slide rails is rollingly connected to two left and right pulleys, and a buffer dam near the upstream is installed on the top of the pulley, and a damping dam is hinged on the upstream side of the surface of the dam body, and the end of the damping dam surface near the upstream is always higher than its own end near the downstream.

[0006] Preferably, two front and rear second slide rails located above the damping dam are provided on the upstream side of the main surface of the dam, and the right sides of the two second slide rails are slidably connected with a lifting slider, and the lifting slider and the damping dam surface near the upstream end are both connected with an anti-stuck roller shaft.

[0007] Preferably, the damping dam is in contact with the buffer dam through an anti-stuck roller shaft at one end close to the upstream, and the lifting slider is in contact with the damping dam through an anti-stuck roller shaft at one end close to the upstream.

[0008] Preferably, the facing surfaces of the front and rear two limiting guardrails are provided with a first transmission groove parallel to the bottom plate near the upstream end, and the facing surfaces of the front and rear two limiting guardrails are provided with a second transmission groove parallel to the dam body near the downstream end. The first transmission groove and the second transmission groove located inside each limiting guardrail are interconnected and smoothly connected.

[0009] Preferably, a power generation mechanism located above the second transmission groove is provided on the top of the limiting guardrail, and an input end of the power generation mechanism is fixedly connected to a driven pulley.

[0010] Preferably, a driving pulley is provided inside the first transmission groove near the upstream end, and a transmission mechanism is provided at the connection between the first transmission groove and the second transmission groove.

[0011] Preferably, a first transmission belt is connected between the driving pulley and the transmission mechanism, and the transmission mechanism is connected to the driven pulley via a second transmission belt.

[0012] Preferably, the front and rear sides of the buffer dam are fixedly connected with connecting blocks, the other end of the connecting block extends to the interior of the first transmission groove and is fixedly connected to the first transmission belt, and a push plate is hinged on the surface of the buffer dam near the upstream side, and the bottom of the push plate is in contact with the bottom plate and the first slide rail.

[0013] Preferably, the transmission mechanism includes a first pulley rotatably engaged with the first transmission groove or the second transmission groove, the surface of the first pulley is wrapped around the inside of the first transmission belt, a pawl assembly is provided inside the first pulley, a transmission gear is provided on the inner side of the pawl assembly, a transmission shaft is sleeved on the inside of the transmission gear, one end of the transmission shaft is rotationally engaged with the limiting guardrail, the other end of the transmission shaft passes through the transmission mechanism and is fixedly connected to the second pulley, and the second pulley is wrapped around the inside of the second transmission belt.

[0014] Preferably, the pawl assembly includes a pawl arranged inside the first pulley and outside the transmission gear, one end of the pawl and the transmission gear are abutted against each other, the other end of the pawl is sleeved with a rotating shaft, one end of the rotating shaft passes through the pawl and is fixedly connected to the first pulley, a positioning spring is arranged between the pawl and the rotating shaft, and both ends of the positioning spring are connected to the pawl or the rotating shaft.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. Since the buffer dam needs to continuously overcome friction and other resistances to gradually approach the bottom plate when sliding, it can reduce the impact intensity of flood waves and thus reduce the direct impact intensity on the dam body. When the damping dam is flipped and the slider is lifted, the resistance to the movement of the buffer dam can be further increased, thereby further improving the effect of reducing the impact intensity. At the same time, the lifting of the slider can lift the waves and catch and push floating foreign objects that have washed over the buffer dam, so that they slide down to the top of the dam body under the action of the inclined surface of the lifting slider for easy recovery.

[0017] 2. In the present invention, the first transmission belt can be driven to move by the connecting block during the sliding of the buffer dam downstream. Since the movement of the first transmission belt can drive the driven pulley to rotate through the transmission mechanism and the second transmission belt with the cooperation of the driving pulley, the effect of power generation and energy storage can be achieved with the cooperation of the power generation mechanism. The setting of the transmission gear can avoid the impact on the power generation drive system when the buffer dam is reset.

[0018] 3. The present invention uses a pusher plate to drive the buffer dam to reset when the tide recedes. At the same time, the pusher plate can be quickly reset under the gravity of the damping dam and the lifting slider, or reset under the action of an additional pneumatic system to prepare for the next impact reduction. During the reset of the buffer dam, the bottom of the pusher plate is as close to the bottom plate as possible due to the gravity of the pusher plate, and the silt on the surface of the bottom plate can be scraped off under the continuous pushing action, thereby preventing the accumulation of silt and the blockage of the flood discharge outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main body of the present invention;

[0020] Figure 2 It is a front view of the present invention;

[0021] Figure 3 A top view of the present invention;

[0022] Figure 4 for Figure 3 Cross-sectional view in the middle XX direction;

[0023] Figure 5 for Figure 4 Front view in

[0024] Figure 6 for Figure 5 Map of the state after the flood impact;

[0025] Figure 7 It is a top cross-sectional view of the first transmission groove in the present invention;

[0026] Figure 8 for Figure 7 A partial enlarged schematic diagram of point A in the middle;

[0027] Figure 9 It is a front cross-sectional view of the first transmission belt in the present invention;

[0028] Figure 10 for Figure 9 A partial enlarged schematic diagram of point B in the middle.

[0029] In the figure: 1. bottom plate; 2. dam body; 3. limiting guardrail; 4. positioning strip; 5. first slide rail; 6. buffer dam; 7. damping dam; 8. second slide rail; 9. lifting slider; 10. anti-stuck roller shaft; 11. pulley; 12. first transmission groove; 13. second transmission groove; 14. power generation mechanism; 15. driven pulley; 16. driving pulley; 17. transmission mechanism; 171. first pulley; 172. pawl assembly; 1721. pawl; 1722. rotating shaft; 1723. positioning spring; 173. transmission gear; 174. transmission shaft; 175. second pulley; 18. first transmission belt; 19. second transmission belt; 20. connecting block; 21. push plate. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1 to 10 As shown, an embodiment of the present invention provides a flood control embankment for a water conservancy project, comprising a base plate 1, a dam body 2 is provided on the top of the base plate 1 near the downstream, two limiting guardrails 3 are provided on the top of the base plate 1, located on the front and rear sides of the dam body 2, and positioning bars 4 are provided on the backs of the two limiting guardrails 3. The positioning bars 4 are inserted into the two banks of the riverbed, and two front and rear first slide rails 5 are provided on the top of the base plate 1. The top of each first slide rail 5 is rollingly connected to two left and right pulleys 11, and a buffer dam 6 near the upstream is installed on the top of the pulley 11. A damping dam 7 is hingedly connected to the surface of the dam body 2 near the upstream side, and the end of the damping dam 7 near the upstream side is always higher than the end of the damping dam 7 near the downstream side.

[0032] When flood waves hit, the buffer dam 6 is pushed first. When the buffer dam 6 contacts the anti-stuck roller shaft 10 at the upper end of the damping dam 7, the damping dam 7 is pushed to flip upward. The flipping of the damping dam 7 can be achieved by pushing the lifting slider 9 to slide upward through the anti-stuck roller shaft 10 at the upper end of the lifting slider 9 with the cooperation of the second slide rail 8.

[0033] When the buffer dam 6 slides, it needs to continuously overcome friction and other resistances to gradually approach the bottom plate 1, thereby reducing the impact intensity of the flood waves and reducing the direct impact intensity on the dam body 2. When the damping dam 7 is flipped and the slider 9 is lifted, the resistance to the movement of the buffer dam 6 can be further increased, thereby further improving the effect of reducing the impact intensity.

[0034] like Figure 4 As shown, two front and rear second slide rails 8 are provided on the upstream side of the surface of the dam body 2 and located above the damping dam 7. The right sides of the two second slide rails 8 are slidably connected to a lifting slider 9. The lifting slider 9 and the upstream end of the surface of the damping dam 7 are both connected to an anti-stuck roller shaft 10.

[0035] The second slide rail 8 restricts the lifting slider 9 so that it can slide upward continuously with the cooperation of the damping dam 7 and the anti-stuck roller shaft 10. Then, by lifting the lifting slider 9, the floating foreign objects that are lifted by the waves and rush through the buffer dam 6 can be received and pushed, so that they can slide to the top of the dam body 2 under the action of the inclined surface of the lifting slider 9 for easy recovery.

[0036] like Figure 4 As shown, the damping dam 7 is in contact with the buffer dam 6 through the anti-stuck roller shaft 10 near the upstream end, and the lifting slider 9 is in contact with the damping dam 7 through the anti-stuck roller shaft 10 near the upstream end.

[0037] like Figure 4 As shown, the facing surfaces of the front and rear limiting guardrails 3 are provided with a first transmission groove 12 parallel to the bottom plate 1 near the upstream end, and the facing surfaces of the front and rear limiting guardrails 3 are provided with a second transmission groove 13 parallel to the dam body 2 near the downstream end. The first transmission groove 12 and the second transmission groove 13 located inside each limiting guardrail 3 are interconnected and smoothly connected.

[0038] like Figure 5 and Figure 6 As shown, a power generation mechanism 14 located above the second transmission groove 13 is provided on the top of the limiting guardrail 3 , and a driven pulley 15 is fixedly connected to the input end of the power generation mechanism 14 .

[0039] like Figure 1 As shown, a driving pulley 16 is provided inside the first transmission groove 12 near the upstream end, and a transmission mechanism 17 is provided at the connection between the first transmission groove 12 and the second transmission groove 13;

[0040] The first transmission belt 18 can be supported and positioned by the driving pulley 16 and the transmission mechanism 17 to ensure that the direction and movement range of the first transmission belt 18 can adapt to the movement of the connecting block 20 driven by the buffer dam 6.

[0041] like Figure 1As shown, a first transmission belt 18 is connected between the driving pulley 16 and the transmission mechanism 17 , and the transmission mechanism 17 is connected to the driven pulley 15 via a second transmission belt 19 .

[0042] like Figure 9 As shown, the front and rear sides of the buffer dam 6 are fixedly connected to a connecting block 20, the other end of the connecting block 20 extends into the interior of the first transmission groove 12 and is fixedly connected to the first transmission belt 18, and a push plate 21 is hingedly connected to the surface of the buffer dam 6 near the upstream side, and the bottom of the push plate 21 is in contact with the bottom plate 1 and the first slide rail 5;

[0043] Through the push plate 21, the buffer dam 6 can be driven to reset when the tide recedes. At the same time, it can be quickly reset under the gravity of the damping dam 7 and the lifting slider 9, or reset under the action of an additional pneumatic system, so as to prepare for the next impact reduction. During the reset of the buffer dam 6, the bottom of the push plate 21 is as close to the bottom plate 1 as possible due to the gravity of the push plate 21, and the silt on the surface of the bottom plate 1 can be scraped off under the continuous pushing action, so as to prevent the accumulation of silt and the blockage of the flood discharge outlet.

[0044] like Figure 8 As shown, the transmission mechanism 17 includes a first pulley 171 that is rotatably engaged with the first transmission groove 12 or the second transmission groove 13. The surface of the first pulley 171 is wound around the inside of the first transmission belt 18. A pawl assembly 172 is provided inside the first pulley 171. A transmission gear 173 is provided on the inner side of the pawl assembly 172. A transmission shaft 174 is sleeved on the inside of the transmission gear 173. One end of the transmission shaft 174 is rotatably engaged with the limiting guardrail 3. The other end of the transmission shaft 174 passes through the transmission mechanism 17 and is fixedly connected to a second pulley 175. The second pulley 175 is wound around the inside of the second transmission belt 19.

[0045] The transmission mechanism 17 can support and position the first transmission belt 18 in cooperation with the driving pulley 16 so that it is compatible with the operation of the connecting block 20 , and can also support and position the second transmission belt 19 in cooperation with the driven pulley 15 .

[0046] like Figure 10 As shown, the pawl assembly 172 includes a pawl 1721 disposed inside the first pulley 171 and outside the transmission gear 173. One end of the pawl 1721 abuts against the transmission gear 173. The other end of the pawl 1721 is sleeved with a rotating shaft 1722. One end of the rotating shaft 1722 passes through the pawl 1721 and is fixedly connected to the first pulley 171. A positioning spring 1723 is provided between the pawl 1721 and the rotating shaft 1722. Both ends of the positioning spring 1723 are connected to the pawl 1721 or the rotating shaft 1722.

[0047] Through the transmission gear 173, the first pulley 171 can drive the transmission shaft 174 and the second pulley 175 to rotate under the drive of the first transmission belt 18 with the cooperation of the pawl assembly 172, and at the same time, it can prevent the second pulley 175 from driving the second transmission belt 19 to rotate in the opposite direction and affect the effect of the power generation drive system, while reducing the resistance to the reset of the buffer dam 6.

[0048] Working principle and usage process:

[0049] The dam is arranged as shown in the figure. When the flood waves hit, the buffer dam 6 is first pushed to overcome the friction and other resistances and gradually approach the bottom plate 1. During this period, the impact force of the flood waves is gradually reduced to reduce the direct impact intensity on the dam body 2. When the buffer dam 6 contacts the anti-stuck roller shaft 10 at the upper end of the damping dam 7, the damping dam 7 is pushed to flip upward, and the resistance to the movement of the buffer dam 6 is increased, further improving the intensity of impact reduction. The flipping of the damping dam 7 can push the lifting slider 9 to slide upward through the anti-stuck roller shaft 10 at the upper end of the lifting slider 9 with the cooperation of the second slide rail 8. Therefore, the floating foreign objects lifted by the waves and washed over the buffer dam 6 can be received and pushed, so that they slide down to the top of the dam body 2 under the action of the inclined surface of the lifting slider 9 for easy recovery.

[0050] When the buffer dam 6 slides downstream, the first transmission belt 18 can be driven to move by the connecting block 20. Since the movement of the first transmission belt 18 can drive the driven pulley 15 to rotate through the transmission mechanism 17 and the second transmission belt 19 in cooperation with the driving pulley 16, power generation and energy storage can be performed in cooperation with the power generation mechanism 14.

[0051] When the tide recedes, the buffer dam 6 can be driven to reset. At the same time, the gravity of the damping dam 7 and the lifting slider 9 can promote its rapid reset, or it can be reset under the action of an additional pneumatic system, and finally it can be reset. When the buffer dam 6 is reset, the push plate 21 can be used to scrape off the silt on the surface of the bottom plate 1 to avoid the blockage of the flood discharge outlet caused by silt accumulation.

[0052] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0053] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A flood embankment for a water conservancy project, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is provided with a dam body (2) near the downstream, and the top of the bottom plate (1) is provided with two limiting guardrails (3) located on the front and rear sides of the dam body (2), and the two limiting guardrails (3) are provided with positioning strips (4) on the back sides thereof, and the positioning strips (4) are plugged into the two banks of the riverbed, and the top of the bottom plate (1) is provided with two front and rear first slide rails (5), and the top of each first slide rail (5) is rollingly connected to two left and right pulleys (11), and the top of the pulley (11) is installed near the upper The invention relates to a buffer dam (6) disposed upstream, and a damping dam (7) is hingedly connected to the upstream side of the surface of the dam body (2), and the end of the surface of the damping dam (7) close to the upstream is always higher than the end of the surface close to the downstream; the surface of the dam body (2) close to the upstream is provided with two front and rear second slide rails (8) located above the damping dam (7), and the right sides of the two second slide rails (8) are slidably connected with a lifting slider (9), and the lifting slider (9) and the surface of the damping dam (7) close to the upstream end are both connected with an anti-stuck roller shaft (10).

2. A flood embankment for water conservancy projects according to claim 1, characterized in that: The damping dam (7) contacts the buffer dam (6) through the anti-stuck roller shaft (10) near the upstream end, and the lifting slider (9) contacts the damping dam (7) through the anti-stuck roller shaft (10) near the upstream end.

3. The flood embankment for water conservancy projects according to claim 1, characterized in that: A first transmission groove (12) parallel to the bottom plate (1) is provided on the facing surfaces of the front and rear two limiting guardrails (3) near the upstream end, and a second transmission groove (13) parallel to the dam body (2) is provided on the facing surfaces of the front and rear two limiting guardrails (3) near the downstream end. The first transmission groove (12) and the second transmission groove (13) located inside each limiting guardrail (3) are interconnected and smoothly connected.

4. A flood embankment for water conservancy projects according to claim 3, characterized in that: A power generation mechanism (14) located above the second transmission groove (13) is provided on the top of the limiting guardrail (3), and an input end of the power generation mechanism (14) is fixedly connected to a driven pulley (15).

5. The flood embankment for water conservancy projects according to claim 4, characterized in that: A driving pulley (16) is provided inside the first transmission groove (12) near the upstream end, and a transmission mechanism (17) is provided at the connection between the first transmission groove (12) and the second transmission groove (13).

6. The flood embankment for water conservancy projects according to claim 5, characterized in that: A first transmission belt (18) is connected between the driving pulley (16) and the transmission mechanism (17), and the transmission mechanism (17) is connected to the driven pulley (15) via a second transmission belt (19).

7. A flood embankment for water conservancy projects according to claim 6, characterized in that: The front and rear sides of the buffer dam (6) are fixedly connected to connecting blocks (20), the other end of the connecting block (20) extends to the interior of the first transmission groove (12) and is fixedly connected to the first transmission belt (18), and a push plate (21) is hingedly connected to the surface of the buffer dam (6) near the upstream side, and the bottom of the push plate (21) is in contact with the bottom plate (1) and the first slide rail (5).

8. The flood embankment for water conservancy projects according to claim 6, characterized in that: The transmission mechanism (17) includes a first pulley (171) rotatably engaged with the inside of the first transmission groove (12) or the second transmission groove (13); the surface of the first pulley (171) is wound around the inside of the first transmission belt (18); a pawl assembly (172) is provided inside the first pulley (171); a transmission gear (173) is provided on the inner side of the pawl assembly (172); a transmission shaft (174) is sleeved inside the transmission gear (173); one end of the transmission shaft (174) is rotatably engaged with the limiting guardrail (3); the other end of the transmission shaft (174) passes through the transmission mechanism (17) and is fixedly connected to a second pulley (175); the second pulley (175) is wound around the inside of the second transmission belt (19).

9. The flood embankment for water conservancy projects according to claim 8, characterized in that: The pawl assembly (172) includes a pawl (1721) arranged inside the first pulley (171) and outside the transmission gear (173), one end of the pawl (1721) and the transmission gear (173) abut against each other, the other end of the pawl (1721) is sleeved with a rotating shaft (1722), one end of the rotating shaft (1722) passes through the pawl (1721) and is fixedly connected to the first pulley (171), a positioning spring (1723) is arranged between the pawl (1721) and the rotating shaft (1722), and the two ends of the positioning spring (1723) are respectively connected to the pawl (1721) and the rotating shaft (1722).

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