A water retaining weir for water conservancy construction

Abstract

The present invention relates to a water retaining weir for water conservancy construction, which includes a first cofferdam plate, a second cofferdam plate, and a third cofferdam plate. Each cofferdam plate is vertically inserted into a corresponding base; insertion sleeves are provided on the inner sides of the first cofferdam plate, the second cofferdam plate, and the third cofferdam plate for inserting insertion rods, and insertion holes are provided on each base for inserting the insertion rods. A first wedge block and a first wedge groove are respectively provided at the left and right ends of the first cofferdam plate, and a second wedge groove and a third wedge groove are provided on the inner side of the first cofferdam plate. A fourth wedge groove and a second wedge block are respectively provided at the left and right ends of the second cofferdam plate, and a fifth wedge groove and a sixth wedge groove are provided on the inner side of the second cofferdam plate. A third wedge block and a fourth wedge block are respectively provided at the left and right ends of the third cofferdam plate. The first cofferdam plate, the second cofferdam plate, and the third cofferdam plate can form a rectangular frame by the cooperation of the corresponding wedge blocks and wedge grooves between adjacent cofferdam plates. By selecting different numbers of cofferdam plates, water retaining weirs of different sizes can be formed, with flexible use and stronger applicability.

Description

Technical Field

[0001] The present invention relates to the field of auxiliary devices for water conservancy construction, and particularly relates to a water retaining weir for water conservancy construction. Background Art

[0002] The water retaining weir for water conservancy construction is used at the construction site to prevent water bodies or soil from entering the construction or maintenance operation area, playing a role in isolating the water in the river channel and facilitating construction. For example, a water retaining weir for water conservancy construction disclosed in the utility model patent with the authorization publication number CN221878136U includes a plurality of cofferdam baffles. The two ends of the plurality of cofferdam baffles are vertically arranged, and the plurality of cofferdam baffles are connected end to end to form a water retaining weir structure with a hollow interior. Oblique grooves are provided at both ends of each cofferdam baffle, and adjacent cofferdam baffles are at 90 degrees, finally enclosing a square construction area. This structure is only applicable to specific construction scenarios. Once enclosed, it cannot be lengthened, widened, or heightened as needed.

[0003] A water conservancy construction cofferdam device disclosed in the invention patent with the application publication number CN114319399A directly adopts a cylindrical cofferdam plate, which is vertically arranged in water during use. Obviously, the fabricated cofferdam device is also only applicable to specific sizes of construction scenarios and cannot be adjusted as needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a water retaining weir for water conservancy construction, which can provide various combination methods to adapt to the requirements of various construction scenarios.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A water retaining weir for water conservancy construction includes a first cofferdam plate, a second cofferdam plate, a third cofferdam plate, as well as a first base, a second base, and a third base. The first cofferdam plate, the second cofferdam plate, and the third cofferdam plate are respectively vertically inserted into the first base, the second base, and the third base; Plug sockets are provided inside the first cofferdam plate, the second cofferdam plate, and the third cofferdam plate for inserting plug rods. Jacks are provided on the first base, the second base, and the third base for inserting the bottom ends of the plug rods, and socket openings are provided at the upper ends of the plug rods for inserting the upper plug rods;

[0007] The left and right ends of the first cofferdam plate are respectively provided with a first wedge block and a first wedge groove. The inner side of the first cofferdam plate is provided with a second wedge groove and a third wedge groove spaced left and right. The left and right ends of the second cofferdam plate are respectively provided with a fourth wedge groove and a second wedge block. The inner side of the second cofferdam plate is provided with a fifth wedge groove and a sixth wedge groove spaced left and right. The left and right ends of the third cofferdam plate are respectively provided with a third wedge block and a fourth wedge block. The first wedge block, the second wedge block and the third wedge block have the same structure, being wider at the top and narrower at the bottom. The first wedge groove, the second wedge groove, the third wedge groove, the fourth wedge groove, the fifth wedge groove and the sixth wedge groove have the same structure and can be hermetically fitted with any wedge block.

[0008] When the first cofferdam plate, the second cofferdam plate and the third cofferdam plate are selected for use, there are at least two first cofferdam plates, and it is defined that the first cofferdam plates are installed at the rear side and the right side. There is at least one second cofferdam plate, and it is defined that the second cofferdam plate is installed on the left side. There is at least one third cofferdam plate, and it is defined that the third cofferdam plate is installed at the front side. Each of the first cofferdam plates, the second cofferdam plates and the third cofferdam plates can form a rectangular frame by the cooperation of the corresponding wedge blocks and wedge grooves between adjacent cofferdam plates.

[0009] Further, insertion protrusions are inserted at the bottoms of the first cofferdam plate, the second cofferdam plate and the third cofferdam plate. Slots are provided on the upper sides of the first base, the second base and the third base. A sealing waterproof strip is provided along the length direction of the slot in the slot. The insertion protrusion is inserted into the slot of the corresponding socket and presses the sealing waterproof strip.

[0010] Further, nails are provided on the lower sides of the first base, the second base and the third base for inserting into the foundation.

[0011] Further, first pin holes and pins are respectively provided at the left and right ends of the first base and the second base. Two groups of second pin holes are arranged at intervals in the left-right direction on the inner sides of the first base and the second base. The pin can be selectively inserted into the first pin hole and the second pin hole. When the first base, the second base and the third base are in use, the contact surfaces of adjacent bases are in a sealing and waterproof fit.

[0012] Further, the insertion sleeve includes a cylinder and a triangular part located at the lower end of the cylinder. The triangular part has a guiding hole that is larger at the bottom and smaller at the top, and the guiding hole is communicated with the inner hole of the cylinder for the insertion rod to pass through.

[0013] Further, the first cofferdam plate, the second cofferdam plate and the third cofferdam plate have the same height. The first cofferdam plate and the second cofferdam plate have the same length, and the length of the first cofferdam plate is greater than the length of the third cofferdam plate.

[0014] Further, the lower end part of the insertion rod is an external thread part, the socket at the upper end is a threaded hole, and the length of the insertion rod is less than the height of the first cofferdam plate.

[0015] Furthermore, mounting grooves are provided on the upper sides of the first cofferdam plate, the second cofferdam plate, and the third cofferdam plate. The mounting grooves are used for sealing and waterproof cooperation with the insertion protrusions at the lower parts of the cofferdam plates stacked above.

[0016] Furthermore, the water retaining weir for water conservancy construction further includes two connection components with adjustable deployment angles. Fifth wedges and seventh wedge grooves are respectively provided on both sides of the connection components in the deployment direction. Defining the connection components as the first connection component and the second connection component, when the first cofferdam plate, the second cofferdam plate, the first connection component, and the second connection component are selected, the first connection component is connected between two adjacent second cofferdam plates. The fifth wedge and the seventh wedge groove of the first connection component respectively cooperate with the fourth wedge groove of one second cofferdam plate and the second wedge of the other second cofferdam plate; the second connection component is connected between two adjacent first cofferdam plates. The fifth wedge and the seventh wedge groove of the second connection component respectively cooperate with the first wedge groove of one first cofferdam plate and the first wedge of the other first cofferdam plate; the other second cofferdam plate and the other first cofferdam plate are arranged on the slope.

[0017] Furthermore, the connection component includes a first sector plate and a second sector plate hinged together. The two contacting surfaces of the first sector plate and the second sector plate are in sealing and waterproof cooperation. The fifth wedge is arranged on the first sector plate, and the seventh wedge groove is arranged on the second sector plate.

[0018] Advantages of the present invention:

[0019] The water retaining weir for water conservancy construction of the present invention includes a first cofferdam plate, a second cofferdam plate, a third cofferdam plate, and corresponding bases. Wedge grooves and wedges are provided on both the first cofferdam plate and the second cofferdam plate, and the design of wedge grooves in two mutually perpendicular directions enables the first cofferdam plate and the second cofferdam plate to be connected in sequence in a straight line direction or in a right-angle connection. The third cofferdam plate is used for final sealing. The wedges at both ends of the third cofferdam plate can be inserted into the wedge grooves of two parallel cofferdam plates. The base is used to support and fix the cofferdam plates on the upper side. According to the specific size of the cofferdam area, the corresponding number of cofferdam plates can be selected to quickly assemble rectangular frames of different sizes. Therefore, the weir of the present invention is not limited to a cofferdam area of a specific size, has better applicability, and has a modular design, making the assembly relatively convenient.

[0020] Furthermore, a connection component with an adjustable deployment angle is designed to be connected between two cofferdam plates, and then another cofferdam plate can be adjusted to an inclined state, which is suitable for use on a river slope. Description of the drawings

[0021] Figure 1 is a perspective view of the first cofferdam plate in the present invention;

[0022] Figure 2 It is another perspective three-dimensional view of the first cofferdam panel in the present invention;

[0023] Figure 3 It is the three-dimensional view of the second cofferdam panel in the present invention;

[0024] Figure 4 It is the three-dimensional view of the third cofferdam panel in the present invention;

[0025] Figure 5 It is the three-dimensional view of the first base in the present invention;

[0026] Figure 6 is Figure 5 the partial view of one end of the first base in

[0027] Figure 7 It is the three-dimensional view of the second base in the present invention;

[0028] Figure 8 It is the three-dimensional view of the third base in the present invention;

[0029] Figure 9 It is the three-dimensional view of the insertion rod in the present invention;

[0030] Figure 10 It is the schematic diagram of the first combined usage mode of the water retaining weir for water conservancy construction in the present invention;

[0031] Figure 11 It is the schematic diagram of the second combined usage mode of the water retaining weir for water conservancy construction in the present invention (showing part of the structure);

[0032] Figure 12 It is the schematic diagram of the third combined usage mode of the water retaining weir for water conservancy construction in the present invention;

[0033] Figure 13 It is the schematic diagram of the fifth combined usage mode of the water retaining weir for water conservancy construction in the present invention;

[0034] Figure 14 is Figure 13 the three-dimensional view of the first connecting piece in

[0035] Figure 15 is Figure 14 the view of the first sector plate in

[0036] The names corresponding to the respective marks in the figure:

[0037] 1. First cofferdam plate; 11. First wedge block; 12. First wedge groove; 13. Second wedge groove; 14. Third wedge groove; 15. Insertion sleeve; 151. Cylinder; 152. Triangular part; 16. Insertion projection; 2. Second cofferdam plate; 21. Second wedge block; 22. Fourth wedge groove; 23. Fifth wedge groove; 24. Sixth wedge groove; 3. Third cofferdam plate; 31. Third wedge block; 32. Fourth wedge block; 4. First base; 41. Slot; 42. Socket; 43. Plug; 44. First pin hole; 45. Pin; 46. Second pin hole; 5. Second base; 6. Third base; 7. Insertion rod; 71. External thread part; 72. Socket; 8. First connection assembly; 81. First sector plate; 811. Fifth wedge block; 8111. First side wall; 812. Sealing groove; 82. Second sector plate; 821. Seventh wedge groove; 8211. Second side wall; 9. Second connection assembly. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0039] Embodiment:

[0040] As Figures 1 - 15 shown, a water retaining weir for water conservancy construction includes a first cofferdam plate 1, a second cofferdam plate 2, a third cofferdam plate 3, and a first base 4, a second base 5, and a third base 6. In this embodiment, these several parts are made of steel plate material. To prevent the cofferdam plate from being too heavy, a vacuum double-layer structure can be used. The first cofferdam plate 1, the second cofferdam plate 2, and the third cofferdam plate 3 are three main and commonly used cofferdam plates, and their general structures are the same, only with local details different. When the first cofferdam plate 1, the second cofferdam plate 2, and the third cofferdam plate 3 are in use, they can be vertically inserted into the first base 4, the second base 5, and the third base 6 respectively, but it is not necessary to be inserted into the corresponding base to be used. If used in cooperation with the base, the lengths of the first cofferdam plate 1, the second cofferdam plate 2, and the third cofferdam plate 3 are respectively adapted to the lengths of the first base 4, the second base 5, and the third base 6, and they are used in pairs.

[0041] The first cofferdam plate 1, the second cofferdam plate 2, and the third cofferdam plate 3 have the same height, and the height range of 1.5 to 3 meters can be selected; the first cofferdam plate 1 and the second cofferdam plate 2 have the same length, which is preferably about 2 meters; the length of the first cofferdam plate 1 is greater than the length of the third cofferdam plate 3.

[0042] As Figures 1 - 4 shown, insertion sleeves 15 are provided on the inner sides of the first cofferdam plate 1, the second cofferdam plate 2, and the third cofferdam plate 3 for the insertion rod 7 to be inserted, and two insertion sleeves 15 are provided on each cofferdam plate. As Figures 5 - 8As shown in the figure, jacks 42 are provided on the first base 4, the second base 5, and the third base 6 for the bottom ends of the corresponding insertion rods 7 to be inserted. The insertion rod 7 located inside can support the corresponding cofferdam board to prevent it from tipping inward. Even if there is water outside the cofferdam board, it is not easy to tip outward. The lower end of the insertion rod 7 is an external thread portion 71, which is threadedly connected to the jack 42. The upper end of the insertion rod 7 is provided with a socket 72 and is a threaded hole, so that when two layers of cofferdam boards are stacked, the upper insertion rod 7 can be inserted. The length of a single insertion rod 7 is less than the height of the first cofferdam board 1 to prevent the connection between the upper and lower insertion rods 7 from directly facing the butt joint of the upper and lower cofferdam boards, thereby better improving the supportability.

[0043] As Figures 1 - 2 shown, the insertion sleeve 15 includes a cylinder 151 and a triangular portion 152 located at the lower end of the cylinder 151. The triangular portion 152 has a guiding hole with a larger lower opening and a smaller upper opening. The caliber of the lower opening of the guiding hole is larger than the inner diameter of the cylinder 151, and the guiding hole is communicated with the inner hole of the cylinder 151 for the insertion rod 7 to pass through. With such a design, during installation and use, the insertion rod 7 can be first connected to the corresponding base, and then the cofferdam board can be loaded from top to bottom. The guiding hole is used to reduce the alignment difficulty during installation. After the insertion rod 7 is inserted into the cylinder 151, it also plays a positioning role, enabling the cofferdam board to cooperate with the base in place.

[0044] As Figure 2 shown, insertion protrusions 16 are inserted at the bottoms of the first cofferdam board 1, the second cofferdam board 2, and the third cofferdam board 3. The insertion protrusions 16 are arranged along the length direction of the corresponding cofferdam board, and the thickness of the insertion protrusions 16 is less than the thickness of the cofferdam board. As Figures 5 - 8 shown, slots 41 are provided on the upper sides of the first base 4, the second base 5, and the third base 6, which are arranged through along the length direction of the base. Taking the first cofferdam board 1 and the first base 4 as an example, as Figure 2 and 6 shown, the insertion protrusions 16 and the slots 41. A sealing waterproof strip is arranged along the length direction of the slot 41 inside the slot 41. The insertion protrusion 16 is inserted into the slot 41 of the corresponding socket and presses the sealing waterproof strip. For the sealing waterproof strip, a waterproof packing can be used as the sealing strip and adhered inside the slot 41. In other embodiments, other existing waterproof strips can also be used.

[0045] Insertion nails 43 are provided on the lower sides of the first base 4, the second base 5, and the third base 6 for inserting into the foundation of the river channel. The insertion nails 43 shown in the figure are schematic diagrams, and the specific length can be selected. The purpose is to insert into the foundation to play a certain fixing role. The insertion nails 43 can be in a conical shape with a larger upper part and a smaller lower part, which is conducive to being inserted downward. Some barbed structures can also be provided on the outer periphery, which does not affect the downward insertion and can improve the gripping force; or the outer surface of the insertion nails 43 can be designed as a threaded structure because a smooth surface is not very suitable.

[0046] As Figure 1 and2 As shown, first wedge blocks 11 and first wedge grooves 12 are respectively provided at the left and right ends of the first cofferdam plate 1. Second wedge grooves 13 and third wedge grooves 14 are provided at intervals on the inner side of the first cofferdam plate 1. The wedge mouth directions of the second wedge grooves 13 and third wedge grooves 14 are perpendicular to the wedge mouth direction of the first wedge groove 12. When adjacent cofferdam plates are connected in sequence in the left - right direction, the first wedge groove 12 is used. When forming a right - angle connection, the second wedge groove 13 and third wedge groove 14 are used. Further explanation of the orientation: The first wedge blocks 11 and first wedge grooves 12 are at both ends in the length direction of the first cofferdam plate 1, that is, the above - mentioned left and right ends, not the two ends in the thickness direction of the cofferdam plate.

[0047] As Figure 3 shown, fourth wedge grooves 22 and second wedge blocks 21 are respectively provided at the left and right ends of the second cofferdam plate 2. Fifth wedge grooves 23 and sixth wedge grooves 24 are provided at intervals on the inner side of the second cofferdam plate 2. Compared with the first cofferdam plate 1, the fourth wedge grooves 22 and second wedge blocks 21 and the first wedge blocks 11 and first wedge grooves 12 have swapped left - right positions, which can be understood as turning around, so that when the second cofferdam plate 2 is perpendicularly connected to the first cofferdam plate 1, the insertion sleeve 15 on the second cofferdam plate 2 is still located inside (inside and outside are relative to the cofferdam, and the inside of the cofferdam is the inside).

[0048] As Figure 4 shown, third wedge blocks 31 and fourth wedge blocks 32 are respectively provided at the left and right ends of the third cofferdam plate 3. The first wedge blocks 11, second wedge blocks 21 and third wedge blocks 31 have the same structure, which is wider at the top and narrower at the bottom. The first wedge groove 12, second wedge groove 13, third wedge groove 14, fourth wedge groove 22, fifth wedge groove 23 and sixth wedge groove 24 have the same structure and can be hermetically fitted with any wedge block; each wedge groove has a larger groove depth at the upper part and a smaller groove depth at the lower part, and its groove bottom is inclined from top to bottom and is adapted to the inclined surface of the wedge block. Chamfers are processed on both sides of the groove mouth of each wedge groove to form a guiding surface, which is convenient for the corresponding wedge block to be inserted. If it is a cofferdam structure surrounded by one layer, only one third cofferdam plate 3 is needed. When expanding the length and width of the cofferdam structure, multiple first cofferdam plates 1 and second cofferdam plates 2 can be used. Especially, the first cofferdam plate 1 is used the most when expanding the cofferdam area.

[0049] When choosing to use the first cofferdam plate 1, second cofferdam plate 2 and third cofferdam plate 3, there are several combination methods to adapt to the size of the cofferdam required on - site.

[0050] Combination method one: As Figure 10As shown in the figure, there are two first cofferdam plates 1, which are defined to be installed at the rear side and the right side. There is one second cofferdam plate 2, which is defined to be installed at the left side. There is one third cofferdam plate 3, which is defined to be installed at the front side. Each of the first cofferdam plates 1, the second cofferdam plate 2, and the third cofferdam plate 3 can form a rectangular frame by the cooperation of corresponding wedges and wedge grooves between adjacent cofferdam plates. Specifically, the connection sequence is as follows: the two first cofferdam plates 1 are vertically connected, and the first wedge 11 cooperates with the third wedge groove 14; the second cofferdam plate 2 is vertically connected to the other end of the first cofferdam plate 1, and its second wedge 21 cooperates with the second wedge groove 13 of the first cofferdam plate 1; the third wedge 31 at one end of the third cofferdam plate 3 cooperates with the third wedge groove 14 of the first cofferdam plate 1 on the right side, and the fourth wedge 32 at the other end cooperates with the fifth wedge groove 23 of the second cofferdam plate 2. Since the length of the third cofferdam plate 3 is slightly shorter than that of other cofferdam plates, it just fits into the space between the two parallel first cofferdam plates 1 and the second cofferdam plate 2. The cofferdam plates have a certain self-weight, which can well maintain the fitting contact between the wedges and the wedge grooves, and have a waterproof function, so as to achieve the purpose of isolating the water outside the cofferdam.

[0051] As Figures 5 to 7 shown in the figure, the left and right ends of the first base 4 and the second base 5 are respectively provided with a first pin hole 44 and a plug pin 45. Two groups of second pin holes 46 are arranged at intervals along the left-right direction on the inner sides of the first base 4 and the second base 5. The plug pin 45 can be selectively inserted into the first pin hole 44 and the second pin holes 46. When the first base 4, the second base 5, and the third base 6 are in use, the contact surfaces of adjacent bases are in a sealed and waterproof fit. Sealing gaskets can be arranged on the two end faces of the base, which have a certain elasticity. When adjacent bases are butted, they can achieve sealed waterproofing through tight fitting. The third base 6 is used to support the third cofferdam plate 3. Its length is slightly shorter than that of other bases, and it is clamped between two parallel bases. Therefore, no plug pin is designed at the end of the third base 6, and it relies on the sealing gasket on the end face to contact the side walls of other bases.

[0052] Figures 1 to 4 As shown in the figure, mounting grooves are provided on the upper sides of the first cofferdam plate 1, the second cofferdam plate 2, and the third cofferdam plate 3. These mounting grooves are used for sealed waterproof cooperation with the plug protrusions 16 at the lower parts of the cofferdam plates stacked above. The structure of this mounting groove is similar to that of the slot 41 of the base, and will not be elaborated here.

[0053] Combination method two: On the basis of the above combination method one, it can be heightened. As Figure 11As shown, for the sake of clear understanding, only one more first cofferdam panel 1 is stacked on the first cofferdam panel 1 at the rear side. The bottom insertion protrusion 16 of the upper first cofferdam panel 1 is matched with the installation groove at the top of the lower first cofferdam panel 1. In addition, two insertion rods 7 are inserted into the two insertion rods 7 of the lower layer. The upper insertion rod 7 is inserted into the insertion sleeve 15 of the upper first cofferdam panel 1 to achieve the stability of the second cofferdam panel 2. The upper second cofferdam panel 2 and the third cofferdam panel 3 are stacked based on the same principle, which will not be elaborated here. By setting two layers of cofferdam panels, the height can be increased to adapt to different water depths.

[0054] Combination method three: On the basis of the above combination method one, deformation can be carried out, and lengthening or widening treatment can be carried out, such as Figure 12 As shown, two first cofferdam panels 1 connected in sequence are arranged at the rear side, one first cofferdam panel 1 is arranged on the right side, one second cofferdam panel 2 is arranged on the left side, and one first cofferdam panel 1 and one third cofferdam panel 3 are arranged at the front side. Compared with combination method one, there is one more first cofferdam panel 1 on each of the front and rear sides, so as to achieve widening.

[0055] Combination method four: On the basis of the above combination method one, the following deformation can also be carried out. Since it is easy to understand, the view is not given here. One first cofferdam panel 1 is arranged at the rear side, two first cofferdam panels 1 connected in sequence are arranged on the right side, two second cofferdam panels 2 connected in sequence are arranged on the left side, and one third cofferdam panel 3 is arranged at the front side. Compared with combination method one, there is one more second cofferdam panel 2 and one more first cofferdam panel 1 on each side, so as to achieve lengthening. Lengthening and widening are relative. In short, the area of the cofferdam area is enlarged.

[0056] The above is the combination for the common rectangular cofferdam. The area of the cofferdam area can be adjusted, and the height can also be adjusted. In practice, there is also a kind that leans against the river slope, simply called a U-shaped cofferdam, which is defined as the fifth combination method. In order to improve the adaptability, the present invention designs a connecting component.

[0057] The water retaining weir for water conservancy construction further includes two connecting components with adjustable unfolding angles, such as Figure 14 As shown, fifth wedges 811 and seventh wedge grooves 821 are respectively arranged on both sides of the connecting component in the unfolding direction. The connecting components are defined as the first connecting component 8 and the second connecting component 9. The structure of the second connecting component 9 is the same as that of the first connecting component 8. In other embodiments, the second connecting component can also adopt the mirror image structure of the first connecting component.

[0058] Such as Figure 13 As shown, in Figure 10Based on the deformation, the third cofferdam plate 3 is removed, and a second cofferdam plate 2 and a first cofferdam plate 1 are added. They are differentiated according to their positions, and the added ones are defined as another second cofferdam plate 2 and another first cofferdam plate 1. They are used to be set on the slope on one side of the river channel and are set at a certain inclination angle. The first connection component 8 is connected between two adjacent second cofferdam plates 2. The fifth wedge block 811 and the seventh wedge groove 821 of the first connection component 8 cooperate with the fourth wedge groove 22 of one second cofferdam plate 2 and the second wedge block 21 of another second cofferdam plate 2 (the one on the slope) respectively. The second connection component 9 is connected between two adjacent first cofferdam plates 1. The fifth wedge block and the seventh wedge groove of the second connection component 9 cooperate with the first wedge groove 12 of one first cofferdam plate 1 and the first wedge block 11 of another first cofferdam plate 1 (the one on the slope) respectively. The other second cofferdam plate 2 and the other first cofferdam plate 1 are on the slope and have a certain inclination angle. The connection components can adapt to the inclination angles within a certain angle range. The other second cofferdam plate 2 and the other first cofferdam plate 1 may not be provided with a base according to the site conditions. The insertion rod 7 is to be used. When there is no base, the lower end of the insertion rod 7 can be directly inserted into the slope. According to the geological conditions, additional positioning rods can also be inserted into the insertion sleeves on the inner side of the cofferdam plate, and the lower ends of the positioning rods are inserted into the slope, which can be inserted deeper to improve stability.

[0059] Taking Figure 14 the first connection component 8 shown as an example, it includes a first sector plate 81 and a second sector plate 82 hinged together, and the position of the hinge shaft is as indicated by A in the figure. The two contacting surfaces of the first sector plate 81 and the second sector plate 82 are in a sealed and waterproof fit. The fifth wedge block 811 is arranged on the first sector plate 81, and the seventh wedge groove 821 is arranged on the second sector plate 82. Figure 15 As shown, a sealing groove 812 is provided on one side of the first sector plate 81. The sealing groove is a long groove and can be filled with a sealing strip. The sealing groove 812 is designed in a Y shape, but of course it is not limited to this. The position of the sealing groove ensures that the sealing strip is close to the side wall of the second sector plate 82 when the connection component rotates, that is, it still has waterproof performance within a certain angle range when the connection component is unfolded.

[0060] To improve the docking stability of the connection component with the adjacent cofferdam plate, several magnet blocks can be embedded on the fifth wedge block 811 and the seventh wedge groove 821. When docking with the cofferdam plate, the magnet blocks can generate a certain adsorption force on the end of the cofferdam plate. The position of the magnet blocks can be on Figure 14 the first side wall 8111 and the second side wall 8211 in . The first side wall 8111 is a side wall of the fifth wedge block 811, and the second side wall 8211 is a side wall of the seventh wedge groove 821. The cofferdam plate and the connection component are made of carbon steel, not stainless steel. Stainless steel has basically no magnetic attraction to magnets and has a relatively higher cost. To prevent corrosion, an anti-corrosion paint is coated on the surface of the finished product.

[0061] In other embodiments, the connecting component can also be designed to be flexible. Fifth wedges and seventh wedge grooves are respectively provided on both sides in the unfolding direction, and the middle part is made of flexible waterproof material, which is overall fan-shaped. The flexible waterproof material adopts existing waterproof cloth, such as waterproof canvas. Utilizing its flexibility, it can be bent and can adapt to the adjustment within a certain angle range.

[0062] The present invention is not limited to the above-mentioned optimal implementation manner. Anyone can obtain various other forms of products under the inspiration of the present invention. However, no matter what changes are made in its shape or structure, as long as it has the same or similar technical solutions as the present application, it falls within the protection scope of the present invention.

Claims

1. A water retaining weir for water conservancy construction, characterized in that: It includes a first cofferdam panel, a second cofferdam panel, a third cofferdam panel, as well as a first base, a second base, and a third base. The first cofferdam panel, the second cofferdam panel, and the third cofferdam panel are respectively vertically inserted into the first base, the second base, and the third base; Plug sockets are provided on the inner sides of the first cofferdam panel, the second cofferdam panel, and the third cofferdam panel for inserting the insertion rods. Jacks are provided on the first base, the second base, and the third base for inserting the bottom ends of the insertion rods, and a socket is provided at the upper end of the insertion rod for inserting the upper insertion rod. A first wedge block and a first wedge groove are respectively provided at the left and right ends of the first cofferdam panel. Second wedge grooves and third wedge grooves are provided at left and right intervals on the inner side of the first cofferdam panel. A fourth wedge groove and a second wedge block are respectively provided at the left and right ends of the second cofferdam panel. Fifth wedge grooves and sixth wedge grooves are provided at left and right intervals on the inner side of the second cofferdam panel. A third wedge block and a fourth wedge block are respectively provided at the left and right ends of the third cofferdam panel. The first wedge block, the second wedge block, and the third wedge block have the same structure, being wider at the top and narrower at the bottom. The first wedge groove, the second wedge groove, the third wedge groove, the fourth wedge groove, the fifth wedge groove, and the sixth wedge groove have the same structure and can be hermetically fitted with any wedge block. When the first cofferdam panel, the second cofferdam panel, and the third cofferdam panel are selected for use, there are at least two first cofferdam panels, and it is defined that the first cofferdam panels are installed at the rear side and the right side. There is at least one second cofferdam panel, and it is defined that the second cofferdam panel is installed at the left side. There is at least one third cofferdam panel, and it is defined that the third cofferdam panel is installed at the front side. Each of the first cofferdam panels, the second cofferdam panels, and the third cofferdam panels can form a rectangular frame by the cooperation of the corresponding wedge blocks and wedge grooves between adjacent cofferdam panels; Insertion protrusions are inserted at the bottoms of the first cofferdam panel, the second cofferdam panel, and the third cofferdam panel. Slots are provided on the upper sides of the first base, the second base, and the third base. Sealing waterproof strips are provided along the length direction of the slots inside the slots. The insertion protrusions are inserted into the slots of the corresponding sockets and squeeze the sealing waterproof strips.

2. The water retaining weir for water conservancy construction according to claim 1, characterized in that: Insertion pins are provided on the lower sides of the first base, the second base, and the third base for inserting into the foundation.

3. The water retaining weir for water conservancy construction according to claim 1, characterized in that: First pin holes and insertion pins are respectively provided at the left and right ends of the first base and the second base. Two groups of second pin holes are arranged at left and right intervals along the inner sides of the first base and the second base. The insertion pins can be selectively inserted into the first pin holes and the second pin holes. When the first base, the second base, and the third base are in use, the contact surfaces of adjacent bases are in a sealed waterproof fit.

4. The water retaining weir for water conservancy construction according to claim 1, characterized in that: The plug socket includes a cylinder and a triangular part located at the lower end of the cylinder. The triangular part has a guiding hole that is larger at the bottom and smaller at the top, and the guiding hole is communicated with the inner hole of the cylinder for the insertion rod to pass through.

5. The water retaining weir for water conservancy construction according to claim 1, characterized in that: The first cofferdam panel, the second cofferdam panel, and the third cofferdam panel have the same height. The first cofferdam panel and the second cofferdam panel have the same length, and the length of the first cofferdam panel is greater than that of the third cofferdam panel.

6. The water retaining weir for water conservancy construction according to claim 5, characterized in that: The lower end part of the insertion rod is an external thread part, the socket at the upper end is a threaded hole, and the length of the insertion rod is less than the height of the first cofferdam panel.

7. The water retaining weir for water conservancy construction according to claim 1, characterized in that: Installation grooves are provided on the upper sides of the first cofferdam panel, the second cofferdam panel, and the third cofferdam panel for hermetically waterproof cooperation with the insertion protrusions at the lower part of an upper stacked cofferdam panel.

8. The water retaining weir for water conservancy construction according to claim 1, characterized in that: The water retaining weir for water conservancy construction further includes two connecting components with adjustable unfolding angles. Fifth wedges and seventh wedge grooves are respectively arranged on both sides of the connecting components in the unfolding direction. Defining the connecting components as the first connecting component and the second connecting component, when the first cofferdam plate, the second cofferdam plate, the first connecting component and the second connecting component are selected, the first connecting component is connected between two adjacent second cofferdam plates, and the fifth wedge and the seventh wedge groove of the first connecting component are respectively matched with the fourth wedge groove of one second cofferdam plate and the second wedge of the other second cofferdam plate; the second connecting component is connected between two adjacent first cofferdam plates, and the fifth wedge and the seventh wedge groove of the second connecting component are respectively matched with the first wedge groove of one first cofferdam plate and the first wedge of the other first cofferdam plate; the other second cofferdam plate and the other first cofferdam plate are arranged on the slope.

9. The water retaining weir for water conservancy construction according to claim 8, characterized in that: The connecting component includes a first sector plate and a second sector plate hinged together. The two contacting surfaces of the first sector plate and the second sector plate are in sealing and waterproof cooperation. The fifth wedge is arranged on the first sector plate, and the seventh wedge groove is arranged on the second sector plate.

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