Cofferdam blocking and protecting structure of hydraulic engineering construction channel

Abstract

The invention discloses a cofferdam blocking and protecting structure of a hydraulic engineering construction channel, and relates to the technical field of hydraulic engineering. The device comprises a fence plate, inserting columns are fixedly connected to the outer surface of the lower end of the fence plate at equal intervals, the bottom ends of the inserting columns are conical, a material guiding frame is arranged on the outer surface of one side of the fence plate, slotted holes are formed in the positions, corresponding to the inserting columns, in the fence plate, and one end of each slotted hole penetrates into the corresponding inserting column; the arc-shaped plates are arranged on one side of the surrounding baffle, the elastic pieces are arranged between the two arc-shaped plates, when water flow continuously impacts the arc-shaped plates, one ends of the arc-shaped plates repeatedly extrude the elastic pieces, the elastic pieces push the supporting strips to push the sliding blocks to move, and the arc-shaped plates buffer the impact force of the water flow under the action of the springs and the elastic pieces; therefore, the damage of water flow to the fence plate is relieved, the replacement frequency of the fence plate is greatly reduced, and the dam reinforcing cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy projects, and in particular to a cofferdam retaining structure for a water conservancy project construction channel. Background Art

[0002] A cofferdam is a temporary retaining structure built for permanent water conservancy facilities in water conservancy project construction. Its function is to prevent water and soil from entering the construction site of the building so that drainage can be done in the cofferdam, foundation pits can be excavated, and buildings can be built. It is generally used in hydraulic structures. Except as part of a formal building, the cofferdam is generally dismantled after use. The height of the cofferdam is higher than the highest water level that may occur during the construction period.

[0003] The existing patent (Announcement No.: CN218667593U) is a cofferdam for water conservancy projects, which can prevent water from leaking between the bottom of the water retaining plate and the surface of the dam, thereby reducing the difficulty of laying out the water retaining plate.

[0004] The above technical solution utilizes the water retaining plate to directly block water, but in actual use, the water flow will continuously generate impact force on the water retaining plate. Under long-term impact, the connection between the water retaining plate and the dam is very easy to loosen, and even cause damage to the water retaining plate. After the water retaining plate is damaged by the impact of the water flow, the damaged water retaining plate needs to be replaced, which greatly reduces the replacement and use cost of the dam reinforcement device. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that in the prior art, water is directly blocked by a water retaining plate. During actual use, the water flow will continuously generate impact force on the water retaining plate. Under long-term impact, the connection between the water retaining plate and the dam is very easy to loosen, and even cause damage to the water retaining plate. After the water retaining plate is damaged by the impact of the water flow, the damaged water retaining plate needs to be replaced, which greatly reduces the replacement and use costs of the dam reinforcement device, and proposes a cofferdam retaining structure for a water conservancy project construction channel.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a cofferdam retaining structure for a construction channel of a water conservancy project, comprising a baffle plate, the outer surface of the lower end of the baffle plate is fixedly connected with plug posts at equal distances, and the bottom end of the plug post is conical, a material guide frame is arranged on the outer surface of one side of the baffle plate, and slots are opened at positions corresponding to the plug posts inside the baffle plate, one end of the slots penetrates into the inside of the plug posts, and the other ends of several groups of slots penetrate into the outside of the baffle plate and communicate with the material guide frame;

[0007] The outer surface of the plug column is fixedly connected with a plurality of groups of annular frames 1 at equal distances from top to bottom, and the inner diameter of the annular frame 1 decreases from top to bottom, a plurality of groups of through holes are provided on the inner surface of the slot hole at positions corresponding to the annular frame 1, and the outer surface of the annular frame 1 is fixedly connected with annular frame 2 at equal distances, and a receiving groove is formed between the annular frame 2 and the annular frame 1, and the inner diameter of the annular frame 2 increases from top to bottom, a discharge hole is provided on the inner surface of the annular frame 1 at positions corresponding to the annular frame 2, a bottom plate is fixedly connected to the outer surface of the baffle plate at a position close to the bottom end on the side away from the material guide frame, and an anti-impact mechanism for improving the stability of the baffle plate is provided between the bottom plate and the baffle plate.

[0008] Furthermore, the anti-impact mechanism includes an arc-shaped plate and an elastic sheet; the outer surface of the enclosing plate is fixedly connected with an arc-shaped plate near both ends on one side away from the material guide frame, and one end of the arc-shaped plate is fixedly connected to the enclosing plate, and the other end is a free end, and an elastic sheet is fixedly connected between the two groups of arc-shaped plates, the elastic sheet is arc-shaped in a natural state, and the arc-shaped plate is made of elastic stainless steel, the outer surface of the arc-shaped plate is in contact with the outer surface of the bottom plate, and a sandbag is arranged between the arc-shaped plate and the bottom plate.

[0009] Furthermore, a plurality of guide holes are formed on the outer surface of the arc plate, and a guide ring is fixedly connected to the position corresponding to the guide holes on the outer surface of the arc plate away from the baffle plate, and the outer diameter of the guide ring decreases sequentially from the baffle plate to the guide holes.

[0010] Furthermore, the upper end outer surface of the elastic sheet is rotatably connected to support bars at positions near both sides, and movable grooves are provided on the upper end outer surface of the baffle plate of the support bar at positions corresponding to the two groups of support bars, the interior of the movable groove is fixedly connected to a guide column, and the outer surface of the guide column is movably connected to a slider, the support bar is rotatably connected to the slider, a spring is provided on the outside of the guide column, one end of the spring is fixedly connected to the slider, and the other end is fixedly connected to the movable groove.

[0011] Furthermore, the outer surfaces of the two groups of arc-shaped plates are hinged with movable bar 1 on one side close to the baffle plate, and the outer surface of the baffle plate is hinged with movable bar 2 at a position corresponding to the movable bar 1, a movable plate is arranged between the corresponding movable bar 1 and movable bar 2, and the movable bar 1 and movable bar 2 are hinged to the movable plate.

[0012] Furthermore, movable holes are provided on the upper outer surface of the movable plate and the upper outer surface of the bottom plate, and an insertion rod is provided between the two corresponding groups of movable holes. The bottom end of the insertion rod is conical, and the diameter of the cross section of the insertion rod is smaller than the inner diameter of the movable hole. Several groups of elastic clips are provided on the outer surface of the insertion rod at equal distances from top to bottom.

[0013] Furthermore, the elastic clip includes several groups of support plates, one end of the support plate is a free end, and the other end is fixedly connected to the insertion rod, and the support plate and the insertion rod are an integrated structure, the free end of the support plate is inclined in a direction away from the insertion rod, and the outer surface of the support plate is equidistantly provided with several groups of arc strips, and the cross-section of the arc strip is triangular.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0015] 1. In the present invention, an arc plate is arranged on one side of the baffle plate, and an elastic sheet is arranged between two groups of arc plates. When the water flow continuously impacts the arc plate, one end of the arc plate repeatedly squeezes the elastic sheet, and the elastic sheet pushes the support bar to push the slider to move. The arc plate buffers the impact force of the water flow under the action of the spring and the elastic sheet, thereby slowing down the damage of the water flow to the baffle plate, greatly reducing the replacement frequency of the baffle plate and reducing the cost of dam reinforcement;

[0016] 2. In the present invention, the baffle plate is stably installed on the ground by using the insertion rods and the insertion columns. In the process that the arc plate is repeatedly squeezed by the elastic sheet by the impact of the water flow, the movable bar 1 and the movable bar 2 push and pull the movable plate up and down. In the process that the movable plate moves downward, the support sheet is pushed, so that the support sheet drives the insertion rods to go deeper into the ground. In this way, in the process that the baffle plate is impacted by the water flow, the connection strength between the baffle plate and the ground can be continuously reinforced, and in the process that the baffle plate is impacted by the impact force of the water flow, the baffle plate can be prevented from loosening under the long-term impact of the water flow, thereby further improving the stability of the baffle plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a combined view of the insertion rod and the insertion column of the present invention;

[0019] Figure 3 It is a combined view of the plug post and the annular frame of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the anti-impact mechanism of the present invention;

[0021] Figure 5 It is a combined view of the support strip and the enclosure plate of the present invention;

[0022] Figure 6 It is a combined view of the insertion rod and the support sheet of the present invention;

[0023] Figure 7 It is a combined view of the support sheet and the movable plate of the present invention.

[0024] Figure numerals: 1. baffle plate; 2. plug column; 3. material guide frame; 4. annular frame one; 5. annular frame two; 6. bottom plate; 7. anti-impact mechanism; 71. arc plate; 72. elastic sheet; 73. guide hole; 74. guide ring; 75. support bar; 76. spring; 77. slider; 8. movable bar one; 81. movable bar two; 82. movable plate; 83. plug rod; 84. support sheet; 85. arc bar. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] like Figure 1-3 As shown, a cofferdam retaining structure for a water conservancy project construction channel proposed by the present invention comprises a baffle plate 1, and the outer surface of the lower end of the baffle plate 1 is fixedly connected with a plug column 2 at an equal distance, and the bottom end of the plug column 2 is conical, the baffle plate 1 is vertically placed in the installation area, and the baffle plate 1 is fixed by inserting the plug column 2 into the ground, and a small number of sandbags are arranged on the outer surface of the upper end of the bottom plate 6 between the arc plate 71 and the baffle plate 1, a material guide frame 3 is arranged on the outer surface of one side of the baffle plate 1, and a slot hole is opened at a position corresponding to the plug column 2 inside the baffle plate 1, one end of the slot hole penetrates into the inside of the plug column 2, and the other ends of several groups of slot holes penetrate to the outside of the baffle plate 1 and communicate with the material guide frame 3, and cement slurry is injected into the material guide frame 3;

[0028] The outer surface of the plug column 2 is fixedly connected with a plurality of groups of annular frames 4 at equal distances from top to bottom, and the inner diameter of the annular frame 4 decreases from top to bottom. A plurality of through holes are provided at positions corresponding to the inner surface of the slot hole and the annular frame 4, and an annular frame 2 5 is fixedly connected with the outer surface of the annular frame 4 at equal distances, and a receiving groove is formed between the annular frame 2 5 and the annular frame 1 4, and the inner diameter of the annular frame 2 5 increases from top to bottom, thereby increasing the contact area for cement slurry injection, improving stability, and increasing the difficulty of separating the plug column 2 from the ground. A discharge hole is provided on the inner surface of the annular frame 4 at a position corresponding to the annular frame 2 5, and the cement slurry enters between the plug rod 83 and the ground through the discharge hole to reinforce the baffle plate 1. A bottom plate 6 is fixedly connected to a side of the outer surface of the baffle plate 1 away from the guide frame 3 near the bottom end. After the baffle plate 1 is stably installed, cement slurry is injected into the guide frame 3, and the cement slurry enters the interior of the annular frame 1 and the annular frame 2 5 through the slot hole, and is finally injected into the ground plug hole and the interior of the plug column 2, thereby enhancing the stability of the baffle plate 1.

[0029] Embodiment 2:

[0030] like Figure 1-5 As shown, the difference between this embodiment and embodiment 1 is that an anti-impact mechanism 7 for improving the stability of the baffle plate 1 is arranged between the bottom plate 6 and the baffle plate 1, and the anti-impact mechanism 7 includes an arc plate 71 and an elastic sheet 72; the outer surface of the baffle plate 1 is fixedly connected with an arc plate 71 at a position close to both ends on the side away from the material guide frame 3, and one end of the arc plate 71 is fixedly connected to the baffle plate 1, and the other end is a free end, and an elastic sheet 72 is fixedly connected between the two groups of arc plates 71, the elastic sheet 72 is arc-shaped in a natural state, and the arc plate 71 is made of elastic stainless steel, and the outer surface of the arc plate 71 fits with the outer surface of the bottom plate 6.

[0031] A plurality of guide holes 73 are provided on the outer surface of the arc plate 71, and a guide ring 74 is fixedly connected to a position corresponding to the guide holes 73 on the outer surface of the arc plate 71 away from the baffle plate 1. The outer diameter of the guide ring 74 decreases successively from the baffle plate 1 to the direction of the guide holes 73, and the water flows into the interior of the baffle plate 1 through the guide ring 74.

[0032] The upper outer surface of the elastic sheet 72 is rotatably connected to the support strips 75 near the two sides, and the upper outer surface of the baffle plate 1 of the support strips 75 and the corresponding positions of the two groups of support strips 75 are provided with movable grooves, the interior of the movable groove is fixedly connected to a guide column, and the outer surface of the guide column is movably connected to a slider 77, the support strip 75 is rotatably connected to the slider 77, and a spring 76 is provided on the outside of the guide column, and one end of the spring 76 is fixedly connected to the slider 77, and the other end is fixedly connected to the movable groove. During the use of the baffle plate 1, the water flow continuously impacts the arc plate 71, and one end of the arc plate 71 repeatedly squeezes the elastic sheet 72. The elastic sheet 72 pushes the support strip 75 to push the slider 77 to move. The arc plate 71 buffers the impact force of the water flow under the action of the spring 76 and the elastic sheet 72, thereby reducing the damage of the water flow to the baffle plate 1.

[0033] Embodiment three:

[0034] like Figure 2-7 As shown, the difference between this embodiment and embodiment 1 and embodiment 2 lies in that the outer surfaces of the two groups of arc-shaped plates 71 are hinged with movable bars 8 on one side close to the baffle plate 1, and the outer surface of the baffle plate 1 is hinged with movable bars 81 at a position corresponding to the movable bars 8, a movable plate 82 is arranged between the corresponding movable bars 8 and 81, and the movable bars 1 8, 81 and the movable plates 82 are all hinged, and when the arc-shaped plates 71 are repeatedly squeezed by the elastic sheets 72 due to the impact of water flow, the movable bars 1 8 and 81 push and pull the movable plates 82 up and down.

[0035] The upper outer surface of the movable plate 82 and the upper outer surface of the bottom plate 6 are both provided with movable holes, and an insertion rod 83 is arranged between the two corresponding groups of movable holes. The bottom end of the insertion rod 83 is conical, and the diameter of the cross section of the insertion rod 83 is smaller than the inner diameter of the movable hole. Several groups of elastic clips are arranged at equal distances from top to bottom on the outer surface of the insertion rod 83.

[0036] The elastic clamp includes several groups of support plates 84, one end of which is a free end and the other end is fixedly connected to the insertion rod 83, and the support plate 84 and the insertion rod 83 are an integrated structure. The free end of the support plate 84 is inclined in the direction away from the insertion rod 83, and the movable plate 82 pushes the support plate 84 during the downward movement, so that the support plate 84 drives the insertion rod 83 to go deeper into the ground. Several groups of arc strips 85 are equidistantly arranged on the outer surface of the support plate 84, and the cross-section of the arc strip 85 is triangular. Under the action of its own elasticity, the support plate 84 pushes the arc strip 85 to fit with the corresponding movable hole, thereby increasing the friction coefficient between the support plate 84 and the movable hole, so that the movable plate 82 can push the insertion rod 83 to move downward.

[0037] The working process and principle of the present invention are as follows:

[0038] Step 1: vertically place the enclosure plate 1 in the installation area, and fix the enclosure plate 1 by inserting the plug posts 2 into the ground, and arrange a small amount of sandbags on the outer surface of the upper end of the bottom plate 6 between the arc plate 71 and the enclosure plate 1;

[0039] Step 2: After the enclosure plate 1 is stably installed, cement slurry is injected into the guide frame 3, and the cement slurry enters the inside of the annular frame 1 4 and the annular frame 2 5 through the slots, and finally injected into the ground plug hole and the plug column 2, thereby enhancing the stability of the enclosure plate 1;

[0040] Step 3: After the grouting is completed, the rod 83 is inserted into the corresponding movable plate 82, so that the rod 83 is inserted into the corresponding two groups of corresponding movable holes, and the rod 83 is pushed downward to be inserted into the ground. During the downward movement of the rod 83, the support sheet 84 is squeezed by the movable hole and contracts toward the rod 83. After separating from the movable hole, it expands in the direction away from the rod 83 under the action of its own elastic force, and the upper and lower corresponding movable holes are dislocated under the action of the spring 76 and the elastic sheet 72;

[0041] Step 4: When the baffle plate 1 is in use, the water flow continuously impacts the arc plate 71, and one end of the arc plate 71 repeatedly squeezes the elastic sheet 72. The elastic sheet 72 pushes the support bar 75 to push the slider 77 to move. The arc plate 71 buffers the impact force of the water flow under the action of the spring 76 and the elastic sheet 72, thereby reducing the damage of the water flow to the baffle plate 1;

[0042] Step 5: When the arc plate 71 is repeatedly squeezed by the elastic sheet 72 by the impact of water flow, the movable bar 1 8 and the movable bar 2 81 push and pull the movable plate 82 up and down. During the downward movement of the movable plate 82, the supporting sheet 84 is pushed, so that the supporting sheet 84 drives the insertion rod 83 to go deeper into the ground.

[0043] 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 according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cofferdam retaining structure for a water conservancy project construction channel, comprising a cofferdam plate (1), characterized in that: The outer surface of the lower end of the baffle plate (1) is fixedly connected with plug posts (2) at equal distances, and the bottom end of the plug posts (2) is conical, and a material guide frame (3) is arranged on the outer surface of one side of the baffle plate (1), and slots are provided at positions corresponding to the plug posts (2) inside the baffle plate (1), one end of the slots penetrates into the inside of the plug posts (2), and the other ends of several groups of slots penetrate into the outside of the baffle plate (1) and communicate with the material guide frame (3); The outer surface of the plug column (2) is fixedly connected with a plurality of groups of annular frames (4) at equal distances from top to bottom, and the inner diameter of the annular frame (4) decreases from top to bottom. The inner surface of the slot hole is provided with a plurality of groups of through holes at positions corresponding to the annular frame (4). The outer surface of the annular frame (4) is fixedly connected with annular frame (5) at equal distances, and a receiving groove is formed between the annular frame (5) and the annular frame (4), and the inner diameter of the annular frame (5) increases from top to bottom. A discharge hole is provided at a position corresponding to the annular frame (5) on the inner surface of the annular frame (4). A bottom plate (6) is fixedly connected to a position close to the bottom end of the outer surface of the baffle plate (1) away from the material guide frame (3), and an anti-impact mechanism (7) for improving the stability of the baffle plate (1) is provided between the bottom plate (6) and the baffle plate (1).

2. A cofferdam retaining structure for a water conservancy project construction channel according to claim 1, characterized in that: The anti-collision mechanism (7) comprises an arc-shaped plate (71) and an elastic sheet (72); the outer surface of the baffle plate (1) is fixedly connected to the positions near both ends on the side away from the material guide frame (3), and one end of the arc-shaped plate (71) is fixedly connected to the baffle plate (1), and the other end is a free end; an elastic sheet (72) is fixedly connected between the two groups of arc-shaped plates (71); the elastic sheet (72) is arc-shaped in a natural state, and the arc-shaped plate (71) is made of elastic stainless steel; the outer surface of the arc-shaped plate (71) is in contact with the outer surface of the bottom plate (6), and a sandbag is provided between the arc-shaped plate (71) and the bottom plate (6).

3. A cofferdam retaining structure for a water conservancy project construction channel according to claim 2, characterized in that: The outer surface of the arc-shaped plate (71) is provided with a plurality of groups of guide holes (73), and a guide ring (74) is fixedly connected to a position corresponding to the guide holes (73) on a side of the outer surface of the arc-shaped plate (71) away from the baffle plate (1), and the outer diameter of the guide ring (74) decreases in sequence from the baffle plate (1) to the guide holes (73).

4. A cofferdam retaining structure for a water conservancy project construction channel according to claim 3, characterized in that: The upper end outer surface of the elastic sheet (72) is rotatably connected to support bars (75) at positions near both sides, and the upper end outer surface of the enclosure plate (1) of the support bar (75) is provided with movable grooves at positions corresponding to the two groups of support bars (75), the interior of the movable groove is fixedly connected to a guide column, and the outer surface of the guide column is movably connected to a slider (77), the support bar (75) is rotatably connected to the slider (77), a spring (76) is arranged on the outside of the guide column, and one end of the spring (76) is fixedly connected to the slider (77), and the other end is fixedly connected to the movable groove.

5. The cofferdam retaining structure for a water conservancy project construction channel according to claim 2, characterized in that: The outer surfaces of the two groups of arc-shaped plates (71) are both hinged with a movable bar (8) on one side close to the enclosure plate (1), and the outer surface of the enclosure plate (1) is hinged with a movable bar (8) at a position corresponding to the movable bar (8), and a movable plate (82) is provided between the corresponding movable bars (8) and the movable bars (81), and the movable bars (8) and the movable plates (82) are all hinged.

6. A cofferdam retaining structure for a water conservancy project construction channel according to claim 5, characterized in that: The upper outer surface of the movable plate (82) and the upper outer surface of the bottom plate (6) are both provided with movable holes, and an insertion rod (83) is arranged between the two corresponding groups of movable holes. The bottom end of the insertion rod (83) is conical, and the diameter of the cross section of the insertion rod (83) is smaller than the inner diameter of the movable hole. The outer surface of the insertion rod (83) is provided with a plurality of groups of elastic clips at equal distances from top to bottom.

7. A cofferdam retaining structure for a water conservancy project construction channel according to claim 6, characterized in that: The elastic clamp comprises a plurality of groups of support sheets (84), one end of the support sheet (84) is a free end, and the other end is fixedly connected to the insertion rod (83), and the support sheet (84) and the insertion rod (83) are an integrated structure, the free end of the support sheet (84) is inclined in a direction away from the insertion rod (83), and the outer surface of the support sheet (84) is provided with a plurality of groups of arc strips (85) at equal distances, and the cross section of the arc strip (85) is triangular.

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