A water conservancy construction cofferdam device

Abstract

The utility model provides a water conservancy project construction cofferdam device belongs to water conservancy project equipment field, including the cofferdam, the one side of cofferdam is provided with a plurality of groups of cofferdam mechanism for isolating water flow, the sidewall of cofferdam is provided with a plurality of groups of buffer assembly of reducing the impact force to cofferdam. The utility model discloses a cofferdam mechanism, the fixed block is connected in screw thread after fixed bolt, and the cofferdam is vertically inserted along the positioning block through the positioning groove, and the bayonet of adjacent cofferdam is connected through the splicing plate, thereby blocking the water flow into the construction area, realizing quick installation and disassembly, when the water flow hits the buffer board, the buffer board is pushed after being pressed, and the L-shaped block and connecting rod, the connecting rod compresses the first spring, realizes energy absorption, the first spring resets after reaching the maximum compression amount, the connecting rod is pushed in reverse through the moving piece, makes the buffer board restore the initial position, avoids the direct impact of water flow to cofferdam, provides the safety barrier for the construction area.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering equipment, and more specifically, to a cofferdam device for water conservancy engineering construction. Background Technology

[0002] A cofferdam is a temporary water-retaining structure built in water conservancy projects to construct permanent water conservancy facilities. It is mainly used to control water flow, prevent soil erosion, provide a dry environment for foundation pit excavation and construction areas, and prevent water and soil from entering the construction site of buildings so as to facilitate drainage within the cofferdam, excavation of foundation pits, and construction of buildings.

[0003] A search revealed that Chinese patent CN207260173U discloses "a cofferdam structure for river construction, comprising multiple supporting steel pipes distributed sequentially along the width of the river channel. The front ends of the supporting steel pipes are fitted with bamboo mats, which are covered with waterproof fabric. Each supporting steel pipe has mounting grooves extending along its height on both sides. An isolation end plate is provided between any two adjacent supporting steel pipes, with both sides of the isolation end plate extending into the mounting grooves. The isolation end plate is also covered with waterproof fabric. This river construction cofferdam structure can achieve efficient and convenient cofferdam construction for rivers in any environment and stably intercept the river during its operation to meet the needs of water conservancy engineering construction." However, it still has the following drawbacks:

[0004] (1) The adjacent supporting steel pipes of the device are connected only by inserting the isolation end plate into the installation tank. There is a lack of lateral reinforcement measures. Under the impact of lateral water flow, the isolation end plate may be detached from the tank, resulting in structural disintegration.

[0005] (2) In the case of rapid flow or flood, the impact force of the water flow on the cofferdam will directly act on the rigid support steel pipe and isolation end plate. Without a buffer structure, the rigid structure may deform or crack due to stress concentration, or even cause the overall structure to become unstable. To this end, a cofferdam device for water conservancy construction is proposed. Utility Model Content

[0006] The purpose of this utility model is to address the problem of an existing cofferdam device for water conservancy construction where adjacent supporting steel pipes are connected only by an isolation end plate inserted into the installation groove, lacking lateral reinforcement measures. Under the impact of lateral water flow, the isolation end plate may detach from the groove, leading to structural disintegration.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] The present invention is as follows: a cofferdam device for water conservancy engineering construction, including a cofferdam plate, wherein a multi-set cofferdam mechanism for isolating water flow is provided on one side of the cofferdam plate, and a multi-set buffer assembly for reducing the impact force on the cofferdam plate is provided on the side wall of the cofferdam plate.

[0009] The cofferdam mechanism includes a mounting base slidably connected to a cofferdam panel. Fixing blocks are fixedly connected to the opposite side walls of the mounting base. A connecting hole is provided on the top of the fixing block, and a fixing bolt is threaded onto the inner wall of the connecting hole. An installation opening is provided on the top of the mounting base, and multiple positioning blocks are fixedly connected to the inner wall of the installation opening. A positioning groove is provided on the side wall at the bottom of the cofferdam panel and is slidably connected to the positioning block. A latch is provided on the opposite side walls of the cofferdam panel, and a splicing plate is slidably connected to the inner wall of the latch. Both the splicing plate and the bottom of the cofferdam panel are provided with inclined surfaces.

[0010] As a preferred technical solution of this utility model, the buffer assembly includes two rectangular blocks fixedly connected to the opposite sidewalls of the enclosure. A sliding rod is fixedly connected to the opposite sidewalls of the two rectangular blocks. Two movable parts are slidably connected to the outer wall of the sliding rod. A first spring is fixedly connected to the opposite sidewalls of the two movable parts. A connecting rod is hinged to the facing sidewalls of the two movable parts. A U-shaped block is hinged to one end of the two connecting rods. A buffer plate is fixedly connected to the top of the two U-shaped blocks.

[0011] As a preferred technical solution of this utility model, the top of the splicing plate is provided with an insertion hole, and a fixing post is slidably connected inside the insertion hole, the bottom of the fixing post being needle-shaped.

[0012] As a preferred technical solution of this utility model, a plurality of fasteners are welded to the side wall of the buffer plate, a limit rod is fixedly connected to the bottom of the fasteners, and a second spring is welded to the bottom of the fasteners.

[0013] As a preferred technical solution of this utility model, a support plate is fixedly connected to the side wall of the splicing plate, and an ultrasonic detector is provided at the bottom of the support plate. The ultrasonic detector is electrically connected to an external receiving device.

[0014] As a preferred technical solution of this utility model, an elastic element is provided on the side of the buffer plate away from the surrounding plate, and the elastic element is polyvinyl chloride coated cloth.

[0015] As a preferred technical solution of this utility model, an anti-slip pad is fixedly connected to the side wall of the bayonet.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. Through the set cofferdam mechanism, the fixing blocks on both sides of the mounting base are threaded together with fixing bolts during use. Then, the cofferdam plate is inserted vertically along the positioning block through the bottom positioning groove. The snaps of adjacent cofferdam plates are connected by splicing plates. After the connection is completed, a continuous closed ring cofferdam is formed, which blocks the water flow into the construction area and provides a waterless working environment. After the mounting base is pre-fixed, the cofferdam plate can be inserted vertically for positioning without complicated leveling, realizing rapid installation and disassembly and greatly shortening the construction period.

[0018] 2. Through the buffer components, when water carrying debris impacts the buffer plate, the impact force is first partially absorbed by the surface of the buffer plate. After being compressed, the buffer plate pushes the U-shaped block, driving the connecting rod to move. The connecting rod then compresses the first spring. The deformation of the first spring is proportional to the impact energy, thus absorbing the energy. After the first spring reaches its maximum compression, it begins to reset. The moving parts push the connecting rod in the opposite direction, causing the buffer plate to slowly return to its initial position. This avoids direct impact of water flow on the enclosure, prevents local deformation of the enclosure, extends the service life of the enclosure, and provides a safety barrier for the construction area. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the cofferdam device for water conservancy engineering construction provided by this utility model;

[0020] Figure 2 A schematic diagram of the fixing component, limiting rod, and second spring structure of the water conservancy engineering construction cofferdam device provided by this utility model;

[0021] Figure 3 A schematic diagram of the cofferdam structure of the water conservancy engineering construction cofferdam device provided by this utility model;

[0022] Figure 4 A partial structural schematic diagram of the buffer component of the cofferdam device for water conservancy engineering construction provided by this utility model;

[0023] Figure 5 The cofferdam device for water conservancy engineering construction provided by this utility model Figure 4 Enlarged view of point A in the middle.

[0024] The diagram shows: 1. Enclosure panel; 2. Cofferdam mechanism; 3. Buffer assembly; 4. Through hole; 5. Fixed column; 6. Fixing component; 7. Limiting rod; 8. Second spring; 9. Support plate; 10. Ultrasonic detector; 11. Elastic component; 12. Anti-slip pad; 201. Mounting base; 202. Fixing block; 203. Connecting hole; 204. Fixing bolt; 205. Mounting port; 206. Positioning block; 207. Positioning groove; 208. Bayonet; 209. Splicing plate; 210. Inclined surface; 301. Rectangular block; 302. Sliding rod; 303. Moving component; 304. First spring; 305. Connecting rod; 306. C-shaped block; 307. Buffer plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] like Figure 1 As shown, this embodiment proposes a cofferdam device for water conservancy engineering construction, including a cofferdam 1, a multi-set cofferdam mechanism 2 for isolating water flow is provided on one side of the cofferdam 1, and a multi-set buffer assembly 3 for reducing the impact force on the cofferdam 1 is provided on the side wall of the cofferdam 1.

[0030] like Figure 3As shown, the cofferdam mechanism 2 includes a mounting base 201 slidably connected to the cofferdam plate 1. The mounting base 201 serves as a basic support platform and provides an installation interface. Fixing blocks 202 are fixedly connected to the opposite side walls of the mounting base 201. A connecting hole 203 is provided at the top of the fixing block 202, and a fixing bolt 204 is threaded onto the inner wall of the connecting hole 203. The fixing blocks 202 secure adjacent mounting bases 201 through threaded connection, preventing the cofferdam plate 1 from shifting due to water flow impact or soil pressure. An installation opening 205 is provided at the top of the mounting base 201, providing vertical insertion space for the cofferdam plate 1, forming a modular installation structure. Multiple positioning blocks 206 are fixedly connected to the inner wall of the installation opening 205. A positioning groove 207 is provided on the bottom side wall of the cofferdam plate 1 and slidably connected to the positioning blocks 206. The positioning blocks 206 cooperate with the positioning groove 207 at the bottom of the cofferdam plate 1 to prevent lateral displacement of the cofferdam plate 1 during installation. The opposite side walls of the cofferdam plate 1... A slot 208 is provided on the wall, and a splicing plate 209 is slidably connected to the inner wall of the slot 208. The splicing plate 209 is inserted into the slot 208 of the adjacent enclosure plate 1 to form a lateral connection, which transmits lateral force and prevents water seepage between the gaps of the enclosure plates 1. The bottom of both the splicing plate 209 and the enclosure plate 1 is provided with an inclined surface 210. The inclined surface 210 can make the enclosure plate 1 and the splicing plate 209 firmly inserted into the ground, increasing the friction and providing stable support for the cofferdam. In use, the fixing blocks 202 on both sides of the mounting base 201 are threaded together with fixing bolts 204. Then, the enclosure plate 1 is inserted vertically along the positioning block 206 through the bottom positioning groove 207. The slots 208 of the adjacent enclosure plates 1 are connected through the splicing plate 209. After the connection is completed, a continuous closed annular cofferdam is formed, which blocks the water flow into the construction area and provides a waterless working environment. After the mounting base 201 is pre-fixed, the enclosure plate 1 can be inserted vertically for positioning without complicated leveling, realizing rapid installation and disassembly and greatly shortening the construction period.

[0031] like Figure 4 and Figure 5As shown, the buffer assembly 3 includes two rectangular blocks 301 fixedly connected to the opposite sidewalls of the enclosure 1. A sliding rod 302 is fixedly connected to the opposite sidewalls of the two rectangular blocks 301. The rectangular blocks 301 serve as the base of the buffer assembly 3, providing stable support points for the sliding rod 302. Two moving parts 303 are slidably connected to the outer wall of the sliding rod 302. The sliding rod 302 acts as a guide rail for the moving parts 303, limiting their movement direction to a horizontal straight line to ensure precise transmission of buffering force. The two moving parts 303 have two sliding rods 302 on their opposite sidewalls. A first spring 304 is fixedly connected. Two moving parts 303 compress and stretch the first spring 304 through displacement, converting impact energy into elastic potential energy. The first spring 304 absorbs and releases the impact kinetic energy, preventing rigid collisions. Connecting rods 305 are hinged to the opposing sidewalls of the two moving parts 303. The connecting rods 305 convert the vertical movement of the buffer plate 307 into the horizontal displacement of the moving parts 303, forming a lever-type force transmission path. One end of the two connecting rods 305 is hinged to a U-shaped block 306. A buffer plate 307 is fixedly connected to the top of block 306. The U-shaped block 306 connects the connecting rod 305 to the buffer plate 307, enhancing structural stability and dispersing local stress. The buffer plate 307 directly bears external forces such as water flow impact and floating object collision, serving as the energy input end of the buffer system. When water flow carrying debris impacts the buffer plate 307, the impact force is first partially absorbed by the surface of the buffer plate 307. After being compressed, the buffer plate 307 pushes the U-shaped block 306, driving the connecting rod 305 to move. The connecting rod 305 moves... The hinge point of component 303 creates a lever effect, decomposing the vertical force into a horizontal component, which in turn compresses the first spring 304. The deformation of the first spring 304 is proportional to the impact energy, thus absorbing energy. After the first spring 304 reaches its maximum compression, it begins to reset. The moving component 303 pushes the connecting rod 305 in the opposite direction, causing the buffer plate 307 to slowly return to its initial position, preventing the water flow from directly impacting the enclosure 1, preventing local deformation of the enclosure 1, extending the service life of the enclosure 1, and providing a safety barrier for the construction area.

[0032] like Figure 1 As shown, the top of the splicing plate 209 is provided with an insertion hole 4, and a fixing column 5 is slidably connected inside the insertion hole 4. The bottom of the fixing column 5 is needle-shaped. The fixing column 5 is vertically inserted into the bottom soil layer of the river channel through the insertion hole 4, anchoring the splicing plate 209 of the adjacent cofferdam 1 to the foundation, forming a double connection, which significantly improves the overall anti-sliding capacity of the cofferdam.

[0033] like Figure 2As shown, multiple fasteners 6 are welded to the side wall of the buffer plate 307. A limit rod 7 is fixedly connected to the bottom of the fastener 6, and a second spring 8 is welded to the bottom of the fastener 6. When the buffer plate 307 is impacted by water flow, the connecting rod 305 and the moving part 303 compress the first spring 304 to absorb the initial impact energy. Multi-level buffering is achieved through the first spring 304 and the second spring 8 to avoid overloading of the buffer plate 307 and affecting the stability of the enclosure plate 1.

[0034] like Figure 1 As shown, a support plate 9 is fixedly connected to the side wall of the splicing plate 209. An ultrasonic detector 10 is installed at the bottom of the support plate 9. The ultrasonic detector 10 is electrically connected to an external receiving device. The ultrasonic detector 10 vertically emits sound wave pulses to the foundation at the bottom of the cofferdam. By analyzing the time difference and intensity change of the reflected wave, the overall tilt of the cofferdam 1 and the opening of the joint of the splicing plate 209 are accurately identified and calculated. The data is monitored in real time and fed back to avoid accidents and improve the safety of the project.

[0035] like Figure 1 As shown, an elastic element 11 is provided on the side of the buffer plate 307 away from the enclosure plate 1. The elastic element 11 is made of polyvinyl chloride coated cloth. The surface of the elastic element 11 is smooth and has a low coefficient of friction, so that debris slides over rather than directly impacts the buffer plate 307, reducing energy transfer.

[0036] like Figure 1 As shown, an anti-slip pad 12 is fixedly connected to the side wall of the bayonet 208. The anti-slip pad 12 and the bayonet 208 of the enclosure 1 form a mechanical engagement, which enhances the tightness between the bayonet 208 and the splicing plate 209.

[0037] Specifically, when using the cofferdam device for this water conservancy project: the fixing blocks 202 on both sides of the mounting base 201 are threaded together with fixing bolts 204. Then, the cofferdam plate 1 is inserted vertically along the positioning block 206 through the bottom positioning groove 207. The snap-fit ​​208 of adjacent cofferdam plates 1 is connected through the splicing plate 209. After the connection is completed, a continuous closed annular cofferdam is formed, blocking water flow from entering the construction area (e.g., Figure 3 As shown), after the cofferdam is completed, when the water flow carrying debris impacts the buffer plate 307, the impact force is first partially absorbed by the surface of the buffer plate 307. After being compressed, the buffer plate 307 pushes the U-shaped block 306, driving the connecting rod 305 to move. The connecting rod 305 decomposes the vertical force into a horizontal component, thereby compressing the first spring 304. The deformation of the first spring 304 is proportional to the impact energy, achieving energy absorption. After the first spring 304 reaches its maximum compression, it begins to reset. The moving part 303 pushes the connecting rod 305 in the opposite direction, causing the buffer plate 307 to slowly return to its initial position, preventing the water flow from directly impacting the cofferdam 1 (as shown). Figure 4 and Figure 5 (As shown).

[0038] All technical features in this embodiment can be freely combined according to actual needs.

[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A cofferdam device for water conservancy engineering construction, comprising a cofferdam panel (1), characterized in that, One side of the enclosure (1) is provided with multiple sets of cofferdam mechanisms (2) for isolating water flow, and multiple sets of buffer components (3) are provided on the side wall of the enclosure (1) to reduce the impact force on the enclosure (1). The cofferdam mechanism (2) includes a mounting base (201) that is slidably connected to the cofferdam plate (1). Fixing blocks (202) are fixedly connected to the two opposite side walls of the mounting base (201). A connecting hole (203) is provided on the top of the fixing block (202). A fixing bolt (204) is threadedly connected to the inner wall of the connecting hole (203). An installation opening (205) is provided on the top of the mounting base (201). A plurality of positioning blocks (206) are fixedly connected to the inner wall of the installation opening (205). A positioning groove (207) is provided on the side wall at the bottom of the cofferdam plate (1) and is slidably connected to the positioning block (206). A bayonet (208) is provided on the two opposite side walls of the cofferdam plate (1). A splicing plate (209) is slidably connected to the inner wall of the bayonet (208). An inclined surface (210) is provided on the bottom of both the splicing plate (209) and the cofferdam plate (1).

2. The cofferdam device for water conservancy engineering construction according to claim 1, characterized in that, The buffer assembly (3) includes two rectangular blocks (301) fixedly connected to the opposite sidewalls of the enclosure (1). A sliding rod (302) is fixedly connected to the opposite sidewalls of the two rectangular blocks (301). Two moving parts (303) are slidably connected to the outer wall of the sliding rod (302). A first spring (304) is fixedly connected to the opposite sidewalls of the two moving parts (303). A connecting rod (305) is hinged to the opposite sidewalls of the two moving parts (303). A U-shaped block (306) is hinged to one end of the two connecting rods (305). A buffer plate (307) is fixedly connected to the top of the two U-shaped blocks (306).

3. A cofferdam device for water conservancy engineering construction according to claim 1, characterized in that, The splicing plate (209) has an insertion hole (4) at the top, and a fixing post (5) is slidably connected inside the insertion hole (4). The bottom of the fixing post (5) is needle-shaped.

4. A cofferdam device for water conservancy engineering construction according to claim 2, characterized in that, Multiple fasteners (6) are welded to the side wall of the buffer plate (307). A limit rod (7) is fixedly connected to the bottom of the fastener (6). A second spring (8) is welded to the bottom of the fastener (6).

5. A cofferdam device for water conservancy engineering construction according to claim 1, characterized in that, A support plate (9) is fixedly connected to the side wall of the splicing plate (209), and an ultrasonic detector (10) is provided at the bottom of the support plate (9). The ultrasonic detector (10) is electrically connected to an external receiving device.

6. A cofferdam device for water conservancy engineering construction according to claim 2, characterized in that, The buffer plate (307) is provided with an elastic element (11) on the side away from the enclosure (1), and the elastic element (11) is polyvinyl chloride coated cloth.

7. A cofferdam device for water conservancy engineering construction according to claim 1, characterized in that, An anti-slip pad (12) is fixedly connected to the side wall of the bayonet (208).

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