Anti-cracking protection device for sand-gravel-cobble body and method thereof

Abstract

The invention relates to the related technical field of hydraulic engineering, and discloses an anti-cracking protection device for a sand-gravel-cobble body, the anti-cracking protection device comprises the sand-gravel-cobble body, and an anti-cracking protection mechanism is arranged on the upstream face of the sand-gravel-cobble body; the anti-cracking protection mechanism comprises a grid plate and two protection pieces, and a plurality of first supporting assemblies are connected between the middle of the grid plate and the two protection pieces; the V-shaped protection structure can be formed by matching the two protection parts with the elastic protection part in a rotating manner, and the water flow can be guided, so that the impact force of the water flow on the sand-gravel-cobble body can be reduced. The multiple second supporting assemblies are extruded by rotation of the two protection parts, so that the multiple second supporting assemblies move and are concentrated in the direction of the first supporting assembly, and therefore the supporting and protecting effects on the middle of the V-shaped protection structure formed by the two protection parts and the elastic protection part are improved; and the positions of the second supporting assemblies can be adjusted according to the impact force of the water flow, so that the water flow can be guided and protected.

Description

Technical Field

[0001] The present invention belongs to the technical field related to water conservancy projects, and more specifically, relates to an anti-cracking protection device for sand, gravel and rock bodies and a method thereof. Background Art

[0002] In water conservancy projects such as embankments and dams, the protection of sand and gravel bodies requires targeted measures based on their geological characteristics. Due to the uneven particle distribution, high porosity, and low shear strength of sand and gravel bodies, they are prone to cracking and deformation during engineering applications. However, water conservancy projects in the existing technology have the following drawbacks: 1. In the prior art, in order to resist the impact of water flow, dams composed of sand and gravel bodies usually arrange anti-crack protection structures on the water-facing surface of the sand and gravel bodies. However, the current anti-crack protection structures are difficult to fully protect against rapid water flow, resulting in water flow impacting the sand and gravel bodies, causing cracks in the sand and gravel bodies, and affecting the interception effect of the sand and gravel dams.

[0003] 2. In the prior art, when the sand and gravel body faces water flow impact of varying degrees, the anti-crack protection structure usually does not have an adjustment function, resulting in the anti-crack protection structure not being able to adjust the anti-crack protection effect according to the impact force of the water flow, thereby affecting the use of the anti-crack protection structure.

[0004] 3. In the prior art, when the anti-crack protection device is protecting the sand and gravel body, there will inevitably be hard objects and floating objects on the water surface, which will be driven by the water flow to damage the surface of the sand and gravel body. Currently, nylon mesh is usually used to resist hard objects and floating objects. However, the nylon mesh is not effective in resisting hard objects and floating objects, and the nylon mesh is easily scratched by hard objects and floating objects.

[0005] Therefore, in view of this, the existing structure and defects are studied and improved, and an anti-cracking protection device and method for sand and gravel bodies are provided, in order to achieve a more practical and valuable purpose. Summary of the Invention

[0006] The present invention provides an anti-cracking protection device for sand, gravel and stone bodies and a method thereof, which are used to overcome the above-mentioned defects in the prior art.

[0007] The purpose and efficacy of the anti-cracking protection device and method for sand and gravel bodies of the present invention are achieved by the following specific technical means: A crack prevention and protection device for a sand and gravel body comprises a sand and gravel body, a clay layer is laid on the water-facing surface of the sand and gravel body, a concrete layer is poured on the inclined surface of the clay layer, and an anti-cracking protection mechanism is provided on the inclined surface of the concrete layer; the anti-cracking protection mechanism comprises a grid plate and two protection members, a plurality of first support assemblies are connected between the middle portion of the grid plate and the two protection members, a plurality of second support assemblies are connected between the grid plate and the protection members, and an elastic protection member is connected between the two protection members; the first support assembly comprises a bottom plate and two rotating plates, and the two rotating plates are hinged A rotating shaft is provided, a first buffer assembly is connected between the rotating shaft and the middle part of the base plate, and a second buffer assembly is connected between the base plate and the rotating plate; the first buffer assembly includes a first shell and two mounting blocks, two first movable blocks are symmetrically slidably provided inside the first shell, a connecting plate is connected between the first movable block and the mounting block, a fixing rod is provided inside the first shell, a first V-shaped elastic member is connected between the two first movable blocks, a plurality of elastic protrusions are provided on the inner walls at both ends of the first V-shaped elastic member, and a plurality of pairs of first card grooves are symmetrically provided on one side of the middle part of the fixing rod.

[0008] A further technical solution is that one end of the connecting plate is rotatably connected to the mounting block, the other end of the connecting plate is rotatably connected to the first movable block, the two ends of the first V-shaped elastic member are respectively fixedly connected to the two first movable blocks, a first V-shaped rubber member is connected between the two connecting plates, the two ends of the first V-shaped rubber member are respectively fixedly connected to the two connecting plates, the middle part of the first V-shaped rubber member is fixedly connected to the outer wall of the rotating shaft, a second V-shaped rubber member is connected between the inner walls of the two ends of the first V-shaped rubber member, and the middle part of the second V-shaped rubber member is connected to the middle part of the first V-shaped elastic member.

[0009] A further technical solution is that one end of the first support assembly is fixed to the grid plate, one end of the second support assembly is in sliding contact with the grid plate, the other end of the second support assembly is in sliding contact with the protective member, one end of the second support assembly is connected to the interior of the grid plate and is provided with two pairs of first springs, the two rotating plates in the first support assembly are fixedly connected to the two protective members respectively, and the structure of the first support assembly is the same as that of the second support assembly.

[0010] A further technical solution is that one end of the second buffer component is in sliding contact with the rotating plate, and the other end of the second buffer component is in sliding contact with the bottom plate, two first sliding grooves are symmetrically provided on the rotating plate, two first sliders are symmetrically provided at one end of the second buffer component, and the two first sliders slide in the two first sliding grooves respectively, a pair of second sliding grooves are respectively provided at both ends of the bottom plate, and two second sliders are symmetrically provided at the other end of the second buffer component, and the two second sliders slide in the two second sliding grooves respectively, and one side of the second slider is connected to the inner side of the second sliding groove with a second spring.

[0011] According to a further technical solution, a third spring is provided on one side of the two first movable blocks that are away from each other and are connected to both ends of the first shell, respectively. The third spring is wound around the outer wall of the fixing rod.

[0012] A further technical solution is that the structure of the first buffer component is roughly the same as that of the second buffer component, and the difference between the structure of the first buffer component and the structure of the second buffer component is that a second shell is fixedly provided on both sides of the first buffer component, a slide is provided for sliding inside the second shell, one end of the slide is connected to one end of the second buffer component, and a second movable block is provided at the other end of the slide, a movable plate is provided for sliding inside the second shell, and a number of first hollow elastic parts are connected between the second movable block and the movable plate, and a number of second hollow elastic parts are provided at intervals on the inclined surfaces of one side at both ends of the movable plate, and a rubber block is provided on both sides of each first movable block, and a number of second card grooves are provided at intervals on the inclined surface of one side of the rubber block.

[0013] A further technical solution is that the interior of the movable plate is communicated with the interior of the first hollow elastic part, and the interior of the movable plate is communicated with the interior of the second hollow elastic part, a second V-shaped elastic part is provided on one side of the interior of the second hollow elastic part, and a third V-shaped elastic part is provided on the other side of the interior of the second hollow elastic part, a top rod is connected between the middle part of the second V-shaped elastic part and the middle part of the third V-shaped elastic part, both ends of the second V-shaped elastic part are in sliding contact with the second hollow elastic part, and the two ends of the third V-shaped elastic part are respectively connected to the interior of the second hollow elastic part, and a fourth spring is connected between one side of the second movable block and the interior of the second shell.

[0014] A further technical solution is that an interception assembly is provided on the front side of the protective member, and a first guide plate is provided on the front side of the elastic protective member, and a number of connecting members are respectively connected to the two sides of the first guide plate; the interception assembly includes a number of L-shaped rods, and the number of L-shaped rods are fixed at intervals on the inclined surface of the protective member, and a number of round rods are fixedly connected between the number of L-shaped rods, one end of the connecting member is connected to one end of the round rod, and the other end of the connecting member is connected to the first guide plate, and a number of second guide plates are provided at intervals on the front side of the protective member, and a number of I-shaped parts are connected between the protective member and the second guide plate.

[0015] A further technical solution is that a number of counterweights are provided at intervals on the upper side of the sand and gravel body, steel bars are connected between each connecting plate and the grid plate, a number of anchor bars are provided on the lower side of the grid plate, and the anchor bars pass through the clay layer and the concrete layer and extend into the sand and gravel body.

[0016] A method for preventing cracking of a sand and gravel body comprises the following steps: S1 Pretreatment Stage: Clean the surface of the sand and gravel body to remove debris and loose particles to ensure that the surface of the sand and gravel body is flat and clean; S2: Anti-seepage treatment: Lay clay cutoff walls and cast concrete anti-seepage walls on the water-facing surface of the sand and gravel body to form a protective layer on the water-facing surface of the sand and gravel body, using the protective layer to improve the durability and crack resistance of the sand and gravel body; S3: Installation of anti-crack protection structure: Install anti-crack protection components on the surface of the protective layer. The installation position and quantity of anti-crack protection components should be determined according to actual conditions to ensure that they can effectively enhance the wear resistance and impact resistance of the sand and gravel body. S4: Slope protection and wave prevention: Floating object interception structure and diversion structure are arranged on the anti-crack protection structure. The diversion structure is used to guide the water flow impact to both sides, reducing the damage of the water flow impact to the sand and gravel body.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a crack protection device for sand and gravel. The device comprises a protective element, an elastic protective element, a first support assembly, and a second support assembly. The two protective elements rotate and cooperate with the elastic protective element to form a V-shaped protective structure, which can direct water flow to both sides, thereby reducing the impact force of the water flow on the sand and gravel. Furthermore, the rotation of the two protective elements compresses the multiple second support assemblies located on either side of the first support assembly, causing them to move toward the first support assembly, thereby enhancing the support and protection provided to the central portion of the V-shaped protective structure formed by the two protective elements and the elastic protective element. The positions of the multiple second support assemblies can be adjusted according to the impact force of the water flow, thereby providing guidance and protection for the water flow and further reducing the impact force of the water flow on the sand and gravel. Furthermore, the rotation of the two rotating plates pushes the two second buffer assemblies toward each other. The mutual proximity of the two second buffer assemblies and the cooperation of the first buffer assembly enhance the support provided to the central portion of the two rotating plates, thereby enhancing the support provided to the central portion of the first support assembly and thereby enhancing the support and protection provided to the central portion of the two protective elements. Finally, the two protective members are rotated to make the rotating plate in the second support assembly away from the first support assembly rotate around the rotating axis, and the rotating plate close to the first support assembly remains in a horizontal state. Under the action of the rotating plate away from the first support assembly rotating around the rotating axis, the second buffer assembly moves close to the first buffer assembly, so as to improve the supporting and protective effect of the second buffer assembly on the middle part of the second support assembly, so as to adjust the supporting position of several second support assemblies on the protective members and adjust the supporting and protective effects of the first support assembly and the second support assembly by the impact force of the water flow, thereby promoting the anti-cracking protection effect of the anti-cracking protection mechanism on the sand and gravel body.

[0018] The present invention provides an anti-cracking protection device for sand and gravel bodies. By configuring a third spring, a first movable block, a fixed rod, and a first V-shaped elastic member, the distance between the base plate and the rotating plate is reduced, allowing the mounting block and the first movable block to move closer together. The movement of the two mounting blocks drives the movement of the two connecting plates, which in turn pushes the two first movable blocks toward each other. The approach of the two first movable blocks stretches the two third springs, generating an elastic force. Furthermore, the approach of the two first movable blocks compresses the first V-shaped elastic member, generating an elastic force. Under the action of the elastic forces of the two third springs and the compression of the first V-shaped elastic member, the first buffer assembly supports the rotating shaft. Similarly, the two second buffer assemblies support the two rotating plates. Furthermore, through the configuration of the first V-shaped rubber member, the second V-shaped rubber member, the elastic protrusion, and the first retaining groove, the approach of the two connecting plates compresses the first V-shaped rubber member, generating an elastic force. This elastic force of the first V-shaped rubber member promotes the supporting and buffering function of the first buffer assembly. The two connecting plates approach each other, bringing the ends of the first V-shaped rubber member closer together. This approaching of the ends of the two first V-shaped rubber members compresses the second V-shaped rubber member, generating an elastic force. Under the elastic force of the second V-shaped rubber member, the support and cushioning function of the first buffer assembly is enhanced. The ends of the second V-shaped rubber member are compressed by the ends of the first V-shaped rubber member, causing the middle portion of the second V-shaped rubber member to downwardly squeeze the first V-shaped elastic member. The middle portion of the first V-shaped elastic member is squeezed, shifting the downward opening of the first V-shaped elastic member to an upward opening of the first V-shaped elastic member. This gradually causes the pairs of elastic protrusions to approach the fixed rod. As the two first movable blocks approach each other, the elastic protrusions cooperate with the first slots to gradually enhance the support and cushioning function of the first V-shaped elastic member, thereby significantly enhancing the support and cushioning functions of both the first and second buffer assemblies, facilitating buffering of the impact force of the water flow.

[0019] The present invention provides an anti-crack protection device for sand, gravel, and rock bodies. By configuring a rubber block, a second hollow elastic member, and a movable plate, two first movable blocks approach each other, driving the two rubber blocks toward each other. The elastic engagement of the second hollow elastic member with a second retaining groove provides elastic cushioning for the two first movable blocks, thereby enhancing the elastic cushioning effect of the first cushioning assembly. Furthermore, the movable plate and the rubber block are both inclined on the side thereof, thereby gradually enhancing the elastic cushioning effect between the rubber blocks and the second hollow elastic member as the two first movable blocks approach each other. Furthermore, by configuring a slide plate, the second movable block, the first hollow elastic member, and the movable plate, the two second cushioning assemblies approach each other, driving the two slide plates toward each other. Movement of the slide plate within the second housing drives movement of the second movable block, which in turn drives movement of the first hollow elastic member and the movable plate. This movement of the movable plate drives several pairs of second hollow elastic members toward the two rubber blocks, further enhancing the elastic cushioning effect between the second hollow elastic member and the second retaining groove, thereby further enhancing the elastic cushioning effect of the first cushioning assembly. Finally, through the arrangement of the first hollow elastic member, the second V-shaped elastic member, the third V-shaped elastic member, and the push rod, the middle portion of the movable plate is supported by the first housing, and the slide plate and the second movable block continue to move, thereby compressing the first hollow elastic member. The liquid in the first hollow elastic member enters the movable plate, and the solution in the movable plate enters the second hollow elastic member. The solution in the second hollow elastic member pushes the third V-shaped elastic member, causing it to deform. The deformation of the third V-shaped elastic member pushes the push rod to move, and the movement of the push rod pushes the two ends of the second V-shaped elastic member to slide out of the second hollow elastic member. The sliding of the two ends of the second V-shaped elastic member cooperates with the second hollow elastic member, thereby greatly improving the elastic cushioning effect on the rubber block, thereby greatly improving the elastic cushioning effect of the first buffer assembly. The first buffer assembly can be used to enhance the elastic cushioning effect of the first and second support assemblies, thereby buffering and reducing the impact force of the water flow, greatly reducing the degree of damage to the sand and gravel body caused by the water flow.

[0020] The present invention provides a crack protection device for sand and gravel. The device comprises a first deflector and an interception assembly. The first deflector directs water flow to both sides, while the interception assembly, comprised of a plurality of L-shaped rods and a plurality of round rods, intercepts floating objects and hard objects. This reduces the impact of these objects on the water-facing surface of the sand and gravel, thereby extending the lifespan of the sand and gravel. Furthermore, the device comprises a connector, which allows two protective members to rotate, driving the two interception assemblies. The connector's elasticity allows the two interception assemblies to cooperate with the first deflector to form a V-shaped structure, enabling the interception assemblies to intercept and guide floating objects and hard objects, significantly reducing the damage these objects may cause to the sand and gravel. Finally, the device comprises a second deflector and a shaped member. The shaped member cooperates with the second deflector, enhancing the protective effectiveness of the crack protection mechanism and making it more stable. When water impacts the second deflector, the second deflector redirects the water flow, reducing the impact on the sand and gravel, thereby extending the lifespan of the sand and gravel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] The present invention will be further described below with reference to the accompanying drawings and examples.

[0023] Figure 1 It is a first isometric structural schematic diagram of the present invention; Figure 2 It is a second isometric structural diagram of the present invention; Figure 3 It is a third isometric structural diagram of the present invention; Figure 4 Schematic diagram of the isometric structure of the first support assembly in the present invention; Figure 5 It is a first front view structural schematic diagram of the present invention; Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure at AA in the middle; Figure 7 for Figure 5 Schematic diagram of the cross-section structure at the middle BB; Figure 8 It is a second front view structural schematic diagram of the present invention; Figure 9 for Figure 8 Schematic diagram of the cross-section structure at CC in the middle; Figure 10 It is a left-side structural schematic diagram of the present invention; Figure 11 for Figure 10 Schematic diagram of the cross-sectional structure at DD in the middle; Figure 12 Schematic diagram of the front structure of the first support assembly in the present invention; Figure 13 for Figure 12 Schematic diagram of the cross-sectional structure at EE in the middle; Figure 14 for Figure 12 Schematic diagram of the cross-sectional structure at FF in the middle; Figure 15 for Figure 14 Schematic diagram of the structure of the local enlarged view at K in the middle; Figure 16 Schematic diagram of the top view of the first support assembly in the present invention; Figure 17 for Figure 16 Schematic diagram of the cross-sectional structure at GG in the middle; Figure 18 for Figure 17 The schematic diagram of the structure of the local enlarged view at L in the middle; Figure 19 Schematic diagram of the left side structure of the first support assembly in the present invention; Figure 20 for Figure 19 Schematic diagram of the cross-sectional structure at HH in the middle.

[0024] Description of reference numerals: Sand and gravel body 10, clay layer 11, concrete layer 12, grid plate 13, counterweight 14, steel bar 15, first support assembly 16, second support assembly 17, anchor bar 18, L-shaped rod 20, round rod 21, second guide plate 22, I-shaped member 23, first guide plate 24, connecting member 25, protective member 26, elastic protective member 27, first spring 29, bottom plate 30, rotating plate 31, rotating shaft 32, first buffer assembly 33, second buffer assembly 34, first chute 35, first slider 36, second chute 37, second slider 38 , second spring 39, first shell 40, first movable block 41, fixing rod 42, third spring 43, connecting plate 44, mounting block 45, first V-shaped rubber part 46, second V-shaped rubber part 47, first V-shaped elastic part 48, elastic protrusion 49, first slot 50, second shell 51, slide plate 52, second movable block 53, fourth spring 54, first hollow elastic part 55, movable plate 56, second hollow elastic part 57, second V-shaped elastic part 58, third V-shaped elastic part 59, push rod 60, rubber block 61, second slot 62. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in further detail to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0026] In the description of the present application, unless otherwise specified and limited, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] As shown in the accompanying Figure 1 to the accompanying Figure 20 drawings: The present application provides a crack protection device for sand and gravel body and a method thereof.

[0029] Referring to the accompanying Figure 1 to the accompanying Figure 20, including a sand and gravel body 10, a clay layer 11 is laid on the water-facing surface of the sand and gravel body 10, a concrete layer 12 is poured on the inclined surface of the clay layer 11, and an anti-cracking protection mechanism is provided on the inclined surface of the concrete layer 12; the anti-cracking protection mechanism includes a grid plate 13 and two protective members 26, a plurality of first support assemblies 16 are connected between the middle part of the grid plate 13 and the two protective members 26, a plurality of second support assemblies 17 are connected between the grid plate 13 and the protective members 26, and an elastic protective member 27 is connected between the two protective members 26; the first support assembly 16 includes a bottom plate 30 and two rotating plates 31, a rotating shaft 32 is hinged between the two rotating plates 31, and the rotating shaft 32 is hinged between the two rotating plates 31. A first buffer assembly 33 is connected between the shaft 32 and the middle part of the base plate 30, and a second buffer assembly 34 is connected between the base plate 30 and the rotating plate 31; the first buffer assembly 33 includes a first shell 40 and two mounting blocks 45, two first movable blocks 41 are symmetrically slidably provided inside the first shell 40, a connecting plate 44 is connected between the first movable block 41 and the mounting block 45, a fixing rod 42 is provided inside the first shell 40, a first V-shaped elastic member 48 is connected between the two first movable blocks 41, and a plurality of elastic protrusions 49 are provided on the inner walls at both ends of the first V-shaped elastic member 48, and a plurality of pairs of first card grooves 50 are symmetrically provided on one side of the middle part of the fixing rod 42.

[0030] Preferably, refer to the attached Figure 14 , Attachment Figure 15 One end of the connecting plate 44 is rotatably connected to the mounting block 45, and the other end of the connecting plate 44 is rotatably connected to the first movable block 41. The two ends of the first V-shaped elastic member 48 are respectively fixedly connected to the two first movable blocks 41. A first V-shaped rubber member 46 is connected between the two connecting plates 44. The two ends of the first V-shaped rubber member 46 are respectively fixedly connected to the two connecting plates 44. The middle part of the first V-shaped rubber member 46 is fixedly connected to the outer wall of the rotating shaft 32. A second V-shaped rubber member 47 is connected between the inner walls of the two ends of the first V-shaped rubber member 46. The middle part of the second V-shaped rubber member 47 is connected to the middle part of the first V-shaped elastic member 48.

[0031] Preferably, refer to the attached Figure 9 , Attachment Figure 11 One end of the first support assembly 16 is fixed to the grid plate 13, one end of the second support assembly 17 is in sliding contact with the grid plate 13, the other end of the second support assembly 17 is in sliding contact with the protective member 26, one end of the second support assembly 17 is connected to the inside of the grid plate 13 and is provided with two pairs of first springs 29, the two rotating plates 31 in the first support assembly 16 are respectively fixedly connected to the two protective members 26, and the structure of the first support assembly 16 is the same as that of the second support assembly 17.

[0032] Preferably, refer to the attached Figure 4 , Attachment Figure 13 , Attachment Figure 20One end of the second buffer component 34 is in sliding contact with the rotating plate 31, and the other end of the second buffer component 34 is in sliding contact with the bottom plate 30. Two first sliding grooves 35 are symmetrically provided on the rotating plate 31. Two first sliders 36 are symmetrically provided at one end of the second buffer component 34. The two first sliders 36 slide in the two first sliding grooves 35 respectively. A pair of second sliding grooves 37 are respectively provided at both ends of the bottom plate 30. Two second sliders 38 are symmetrically provided at the other end of the second buffer component 34. The two second sliders 38 slide in the two second sliding grooves 37 respectively. One side of the second slider 38 is connected to the inner side of the second sliding groove 37 with a second spring 39.

[0033] Preferably, refer to the attached Figure 14 A third spring 43 is provided on each side of the two first movable blocks 41 that are away from each other and are connected to both ends of the first shell 40 . The third spring 43 is wound around the outer wall of the fixing rod 42 .

[0034] Preferably, refer to the attached Figure 16 To the attached Figure 18 The structure of the first buffer assembly 33 is roughly the same as that of the second buffer assembly 34. The difference between the structure of the first buffer assembly 33 and the structure of the second buffer assembly 34 is that a second shell 51 is fixedly provided on both sides of the first buffer assembly 33, and a slide plate 52 is provided for sliding inside the second shell 51. One end of the slide plate 52 is connected to one end of the second buffer assembly 34, and the other end of the slide plate 52 is provided with a second movable block 53. A movable plate 56 is provided for sliding inside the second shell 51, and a plurality of first hollow elastic members 55 are connected between the second movable block 53 and the movable plate 56. A plurality of second hollow elastic members 57 are provided at intervals on the inclined surfaces of one side at both ends of the movable plate 56. A rubber block 61 is provided on both sides of each first movable block 41, and a plurality of second card grooves 62 are provided at intervals on the inclined surface of one side of the rubber block 61.

[0035] Preferably, refer to the attached Figure 16 To the attached Figure 18 The interior of the movable plate 56 is communicated with the interior of the first hollow elastic member 55, and the interior of the movable plate 56 is communicated with the interior of the second hollow elastic member 57. A second V-shaped elastic member 58 is provided on one side of the interior of the second hollow elastic member 57, and a third V-shaped elastic member 59 is provided on the other side of the interior of the second hollow elastic member 57. A push rod 60 is connected between the middle part of the second V-shaped elastic member 58 and the middle part of the third V-shaped elastic member 59. Both ends of the second V-shaped elastic member 58 are in sliding contact with the second hollow elastic member 57, and both ends of the third V-shaped elastic member 59 are respectively connected to the interior of the second hollow elastic member 57. A fourth spring 54 is connected between one side of the second movable block 53 and the interior of the second shell 51.

[0036] Preferably, refer to the attached Figure 1 , Attachment Figure 5 , AttachmentFigure 9 An interception assembly is provided on the front side of the protective member 26, and a first guide plate 24 is provided on the front side of the elastic protective member 27. A number of connecting members 25 are respectively connected to the two sides of the first guide plate 24; the interception assembly includes a number of L-shaped rods 20, and the number of L-shaped rods 20 are fixed at intervals on the inclined surface of the protective member 26, and a number of round rods 21 are fixedly connected between the number of L-shaped rods 20. One end of the connecting member 25 is connected to one end of the round rod 21, and the other end of the connecting member 25 is connected to the first guide plate 24. A number of second guide plates 22 are provided at intervals on the front side of the protective member 26, and a number of I-shaped parts 23 are connected between the protective member 26 and the second guide plate 22.

[0037] Preferably, refer to the attached Figure 1 To the attached Figure 3 , Attachment Figure 6 A number of counterweights 14 are arranged at intervals on the upper side of the sand and gravel body 10, a steel bar 15 is connected between each connecting plate 44 and the grid plate 13, and a number of anchor bars 18 are arranged on the lower side of the grid plate 13. The anchor bars 18 pass through the clay layer 11 and the concrete layer 12 and extend into the sand and gravel body 10.

[0038] A method for preventing cracking of a sand and gravel body comprises the following steps: S1 Pretreatment Stage: Clean the surface of the sand and gravel body to remove debris and loose particles to ensure that the surface of the sand and gravel body is flat and clean; S2: Anti-seepage treatment: Lay clay cutoff walls and cast concrete anti-seepage walls on the water-facing surface of the sand and gravel body to form a protective layer on the water-facing surface of the sand and gravel body, using the protective layer to improve the durability and crack resistance of the sand and gravel body; S3: Installation of anti-crack protection structure: Install anti-crack protection components on the surface of the protective layer. The installation position and quantity of anti-crack protection components should be determined according to actual conditions to ensure that they can effectively enhance the wear resistance and impact resistance of the sand and gravel body. S4: Slope protection and wave prevention: Floating object interception structure and diversion structure are arranged on the anti-crack protection structure. The diversion structure is used to guide the water flow impact to both sides, reducing the damage of the water flow impact to the sand and gravel body.

[0039] Specific use of the present invention: When the water flow normally impacts the sand and gravel body 10, first, since the water flow will drive floating objects and hard objects to rush towards the water-facing surface of the sand and gravel body 10, the first guide plate 24 is first used to guide the water flow to both sides, and then the interception assembly composed of several L-shaped rods 20 and several round rods 21 is used to intercept the floating objects and hard objects, thereby reducing the impact force of hard objects and floating objects on the water-facing surface of the sand and gravel body 10 and extending the service life of the sand and gravel body 10.

[0040] Next, the I-shaped part 23 is used in conjunction with the second guide plate 22 to improve the protective effect of the anti-crack protection mechanism and make it more stable. The water flow hits the second guide plate 22, and the second guide plate 22 is used to guide the direction of the water flow, reducing the impact force on the sand and gravel body 10 and increasing the service life of the sand and gravel body 10.

[0041] When the water flow suddenly impacts the sand and gravel body 10, first, the two protective members 26 are subjected to a large impact force of the water flow, so that the two protective members 26 rotate around the rotating shaft 32 following the two rotating plates 31 in the first supporting assembly 16. The two protective members 26 rotate to cooperate with the elastic protective member 27 to form a V-shaped protective structure. The V-shaped protective structure of the two protective members 26 and the elastic protective member 27 is used to guide the water flow to both sides, so as to reduce the impact force of the water flow on the sand and gravel body 10. The second support assemblies 17 on either side of the first support assembly 16 are squeezed by the rotation of the two guards 26, causing the second support assemblies 17 to move toward the first support assembly 16 and concentrate, thereby improving the support and protection of the middle portion of the V-shaped protection structure formed by the two guards 26 and the elastic guard 27. The positions of the second support assemblies 17 can be adjusted according to the impact of the water flow, which helps to improve the support and protection of the second support assemblies 17 on the two guards 26, thereby guiding and protecting the water flow and reducing the impact of the water flow on the sand and gravel body 10. The second support assemblies 17 slide within the grid plate 13 and move toward the first support assembly 16, thereby compressing the pair of first springs 29 in the direction toward the first support assembly 16 to generate elastic force, and stretching the pair of first springs 29 in the direction away from the first support assembly 16 to generate elastic force. Therefore, under the action of the elastic forces of the two pairs of first springs 29, the second support assembly 17 can be centered and limited.

[0042] At the same time, the rotation of the two protective parts 26 drives the two interception components to rotate. Since the connecting part 25 is elastic, the two interception components cooperate with the first guide plate 24 to form a V-shaped structure, so that the interception components can intercept and guide floating objects and hard objects, greatly reducing the degree of damage to the sand and gravel body 10 caused by floating objects and hard objects.

[0043] Next, the two rotating plates 31 in the first support assembly 16 rotate about the rotation axis 32. This rotation pushes the two second buffer assemblies 34 toward each other. The movement of the second buffer assemblies 34 drives the first slider 36 to slide within the first slot 35, and the second slider 38 to slide within the second slot 37, thereby smoothly bringing the two second buffer assemblies 34 toward each other. This allows the two second buffer assemblies 34 to move closer together, cooperating with the first buffer assembly 33 to enhance the support for the middle portions of the two rotating plates 31, thereby improving the support for the middle portion of the first support assembly 16, and thereby enhancing the support and protective function of the plurality of first support assemblies 16 for the middle portions of the two guards 26. The second slider 38 slides within the second slot 37, and the second spring 39 is compressed to generate an elastic force. This elastic force of the second spring 39 causes the second slider 38 to move and return to its original position.

[0044] At the same time, the two protective members 26 rotate to cause the rotating plate 31 in the second support assembly 17 away from the first support assembly 16 to rotate around the rotating axis 32, and the rotating plate 31 close to the first support assembly 16 remains in a horizontal state. Under the action of the rotating plate 31 away from the first support assembly 16 rotating around the rotating axis 32, the second buffer assembly 34 moves close to the first buffer assembly 33, so as to improve the supporting and protective effect of the second buffer assembly 34 on the middle part of the second support assembly 17.

[0045] Next, the base plate 30 of the first support assembly 16 is pressed against the sand and gravel body 10, and the two rotating plates 31 of the first support assembly 16 are impacted by the water flow, thereby reducing the distance between the base plate 30 and the rotating plate 31. The first buffer assembly 33 and the two second buffer assemblies 34 provide support. This reduced distance between the base plate 30 and the rotating plate 31 causes the two mounting blocks 45 to move closer to the two first movable blocks 41. The movement of the two mounting blocks 45 drives the two connecting plates 44 to move, bringing the two first movable blocks 41 closer together. The approach of the two first movable blocks 41 exerts a force on the two third springs 43, which in turn compresses the first V-shaped elastic member 48, generating a force. Under the action of the elastic forces of the two third springs 43 and the compression of the first V-shaped elastic member 48, the first buffer assembly 33 supports the rotating shaft 32. Similarly, the two second buffer assemblies 34 provide support for the two rotating plates 31.

[0046] At the same time, the two connecting plates 44 approach each other, compressing the first V-shaped rubber member 46 and generating an elastic force. This elastic force of the first V-shaped rubber member 46 enhances the support and cushioning function of the first buffer assembly 33. The two connecting plates 44 approach each other, bringing the ends of the first V-shaped rubber member 46 closer together. This approach compresses the second V-shaped rubber member 47 and generates an elastic force. This elastic force enhances the support and cushioning function of the first buffer assembly 33. The ends of the second V-shaped rubber member 47 are compressed by the ends of the first V-shaped rubber member 46, causing the middle portion of the second V-shaped rubber member 47 to press downward against the first V-shaped elastic member 48. The middle part of the first V-shaped elastic member 48 is squeezed, so that the opening of the first V-shaped elastic member 48 is changed from downward to upward, so that the several pairs of elastic protrusions 49 gradually approach the fixed rod 42. In the process of the two first movable blocks 41 approaching each other, the elastic protrusions 49 can cooperate with the first card groove 50 to gradually improve the supporting and buffering effect of the first V-shaped elastic member 48, thereby greatly improving the supporting and buffering effect of the first buffer assembly 33 and the second buffer assembly 34, which is beneficial to buffering the impact force of the water flow.

[0047] Then, the two first movable blocks 41 approach each other, driving the two rubber blocks 61 toward each other. The elastic engagement between the second hollow elastic member 57 and the second retaining groove 62 provides elastic cushioning for the two first movable blocks 41 as they approach each other, thereby enhancing the elastic cushioning effect of the first cushioning assembly 33. Furthermore, the sides of the movable plate 56 and the rubber blocks 61 that are adjacent to each other are both inclined, thereby gradually enhancing the elastic cushioning effect between the rubber blocks 61 and the second hollow elastic member 57 as the two first movable blocks 41 approach each other.

[0048] At the same time, the two second buffer assemblies 34 approach each other to push the two slides 52 approach each other, the slide 52 moves in the second shell 51 and drives the second movable block 53 to move, the second movable block 53 moves and drives the first hollow elastic member 55 and the movable plate 56 to move, the movable plate 56 moves and drives several pairs of second hollow elastic members 57 to approach the two rubber blocks 61, thereby further improving the elastic buffering effect between the second hollow elastic member 57 and the second card slot 62, so as to further improve the elastic buffering effect of the first buffer assembly 33.

[0049] Finally, the middle of movable plate 56 is held against movement by first housing 40, while slide plate 52 and second movable block 53 continue to move, compressing first hollow elastic member 55. Liquid in first hollow elastic member 55 flows into movable plate 56, and the solution in movable plate 56 flows into second hollow elastic member 57. The solution in second hollow elastic member 57 pushes third V-shaped elastic member 59, causing it to deform. The deformation of third V-shaped elastic member 59 pushes push rod 60, which in turn pushes both ends of second V-shaped elastic member 58 out of second hollow elastic member 57. The sliding of both ends of second V-shaped elastic member 58, in conjunction with the second hollow elastic member 57, significantly enhances the elastic cushioning effect on rubber block 61, thereby significantly enhancing the elastic cushioning effect of first buffer assembly 33. The first buffer assembly 33 can enhance the elastic cushioning effect of first support assembly 16 and second support assembly 17, thereby providing a buffering and shock-absorbing effect on the impact of the water flow and significantly reducing the degree of damage to the sand and gravel body 10 caused by the water flow.

[0050] The present invention provides a crack protection device for sand and gravel bodies. By arranging a protective member 26, an elastic protective member 27, a first support assembly 16, and a second support assembly 17, the two protective members 26 rotate and cooperate with the elastic protective member 27 to form a V-shaped protective structure, which can guide water flow to both sides, thereby reducing the impact force of the water flow on the sand and gravel body 10. Furthermore, the plurality of second support assemblies 17 located on both sides of the first support assembly 16 are squeezed by the rotation of the two protective members 26, causing the plurality of second support assemblies 17 to move toward the first support assembly 16, thereby enhancing the support and protection of the central portion of the V-shaped protective structure formed by the two protective members 26 and the elastic protective member 27. The positions of the plurality of second support assemblies 17 can be adjusted according to the impact force of the water flow, thereby guiding and protecting the water flow and reducing the impact force of the water flow on the sand and gravel body 10. Then, through the arrangement of the rotating plate 31, the rotating shaft 32, the first buffer assembly 33, and the second buffer assembly 34, the two rotating plates 31 rotate and push the two second buffer assemblies 34 closer to each other. The two second buffer assemblies 34 are closer to each other and cooperate with the first buffer assembly 33 to improve the supporting effect on the middle part of the two rotating plates 31, which is beneficial to improve the supporting effect of the middle part of the first support assembly 16, thereby promoting the supporting and protective effect of several first support assemblies 16 on the middle part of the two protective members 26. Finally, the two protective members 26 are rotated to rotate the rotating plate 31 in the second support assembly 17 away from the first support assembly 16 around the rotating shaft 32, and the rotating plate 31 close to the first support assembly 16 remains in a horizontal state. Under the action of the rotating plate 31 away from the first support assembly 16 rotating around the rotating shaft 32, the second buffer assembly 34 moves close to the first buffer assembly 33, so as to improve the supporting and protective effect of the second buffer assembly 34 on the middle part of the second support assembly 17, so as to adjust the supporting position of several second support assemblies 17 on the protective members 26 and adjust the supporting and protective effects of the first support assembly 16 and the second support assembly 17 according to the impact force of the water flow, thereby promoting the anti-cracking protection function of the anti-cracking protection mechanism on the sand and gravel body 10.

[0051] The present invention provides an anti-cracking protection device for sand and gravel bodies. By configuring a third spring 43, a first movable block 41, a fixed rod 42, and a first V-shaped elastic member 48, the distance between the base plate 30 and the rotating plate 31 is reduced, allowing the mounting block 45 to approach the first movable block 41. The movement of the two mounting blocks 45 drives the movement of the two connecting plates 44, which in turn pushes the two first movable blocks 41 toward each other. The approach of the two first movable blocks 41 to each other stretches the two third springs 43, generating an elastic force. Furthermore, the approach of the two first movable blocks 41 to each other compresses the first V-shaped elastic member 48, generating an elastic force. Under the elastic forces of the two third springs 43 and the compression of the first V-shaped elastic member 48, the first buffer assembly 33 supports the rotating shaft 32. Similarly, the two second buffer assemblies 34 support the two rotating plates 31. Through the arrangement of the first V-shaped rubber member 46, the second V-shaped rubber member 47, the elastic protrusion 49, and the first retaining groove 50, the two connecting plates 44 approach each other, compressing the first V-shaped rubber member 46 and generating an elastic force. This elastic force of the first V-shaped rubber member 46 enhances the support and cushioning function of the first buffer assembly 33. The two connecting plates 44 approach each other, bringing the ends of the first V-shaped rubber member 46 closer together. This approach compresses the second V-shaped rubber member 47 and generates an elastic force. This elastic force enhances the support and cushioning function of the first buffer assembly 33. The ends of the second V-shaped rubber member 47 are compressed by the ends of the first V-shaped rubber member 46, causing the middle portion of the second V-shaped rubber member 47 to press downward against the first V-shaped elastic member 48. The middle part of the first V-shaped elastic member 48 is squeezed, so that the opening of the first V-shaped elastic member 48 is changed from downward to upward, so that the several pairs of elastic protrusions 49 gradually approach the fixed rod 42. In the process of the two first movable blocks 41 approaching each other, the elastic protrusions 49 can cooperate with the first card groove 50 to gradually improve the supporting and buffering effect of the first V-shaped elastic member 48, thereby greatly improving the supporting and buffering effect of the first buffer assembly 33 and the second buffer assembly 34, which is beneficial to buffering the impact force of the water flow.

[0052] The present invention provides an anti-crack protection device for sand and gravel bodies. By arranging a rubber block 61, a second hollow elastic member 57, and a movable plate 56, the two first movable blocks 41 approach each other, driving the two rubber blocks 61 toward each other. The elastic engagement of the second hollow elastic member 57 and the second retaining groove 62 provides elastic buffering for the two first movable blocks 41 approaching each other, thereby enhancing the elastic buffering effect of the first buffer assembly 33. Furthermore, the sides of the movable plate 56 and the rubber block 61 that are adjacent to each other are both inclined, thereby gradually enhancing the elastic buffering effect between the rubber block 61 and the second hollow elastic member 57 as the two first movable blocks 41 approach each other. Then, through the arrangement of the slide plate 52, the second movable block 53, the first hollow elastic member 55, and the movable plate 56, the two second buffer assemblies 34 approach each other, pushing the two slide plates 52 toward each other. The slide plate 52 moves within the second housing 51, driving the second movable block 53. The movement of the second movable block 53 drives the first hollow elastic member 55 and the movable plate 56. The movement of the movable plate 56 drives several pairs of second hollow elastic members 57 toward the two rubber blocks 61, thereby further enhancing the elastic buffering effect between the second hollow elastic members 57 and the second retaining grooves 62, thereby further enhancing the elastic buffering effect of the first buffer assembly 33. Finally, through the arrangement of the first hollow elastic member 55, the second V-shaped elastic member 58, the third V-shaped elastic member 59, and the push rod 60, the middle portion of the movable plate 56 is abutted by the first housing 40, and the slide plate 52 and the second movable block 53 continue to move, thereby compressing the first hollow elastic member 55. The liquid in the first hollow elastic member 55 flows into the movable plate 56, and the solution in the movable plate 56 flows into the second hollow elastic member 57. The solution in the second hollow elastic member 57 pushes the third V-shaped elastic member 59, causing it to deform. The deformation of the third V-shaped elastic member 59 pushes the push rod 60 to move. The push rod 60 pushes the two ends of the second V-shaped elastic member 58 to slide out of the second hollow elastic member 57. The sliding of the two ends of the second V-shaped elastic member 58 cooperates with the second hollow elastic member 57, thereby greatly improving the elastic buffering effect on the rubber block 61, and thus greatly improving the elastic buffering effect of the first buffer assembly 33. The first buffer assembly 33 can be used to enhance the elastic buffering effect of the first support assembly 16 and the second support assembly 17, thereby buffering and reducing the impact force of the water flow, and greatly reducing the degree of damage to the sand and gravel body 10 caused by the water flow.

[0053] The application discloses a crack protection device for a sand pebble gravel body, which is characterized by the following: a first flow guide plate 24 and an intercepting assembly are arranged, the water flow is guided to both sides by the first flow guide plate 24, and the intercepting assembly formed by a plurality of L-shaped rods 20 and a plurality of round rods 21 is used for intercepting floating objects and hard objects, so that the impact force of the hard objects and the floating objects on the water surface of the sand pebble gravel body 10 is reduced, and the service life of the sand pebble gravel body 10 is prolonged. The two protection pieces 26 are rotatably connected with the connecting piece 25, and the two intercepting assemblies are rotatably driven by the two protection pieces 26; the connecting piece 25 is elastic, so that the two intercepting assemblies and the first flow guide plate 24 form a V-shaped structure, the floating objects and the hard objects are intercepted and guided by the intercepting assemblies, and the damage degree of the floating objects and the hard objects to the sand pebble gravel body 10 is greatly reduced. The second flow guide plate 22 and the I-shaped piece 23 are arranged, the I-shaped piece 23 is matched with the second flow guide plate 22, the protection effect of the crack protection device is improved, the sand pebble gravel body 10 is more stable, the water flow impacts the second flow guide plate 22, the water flow direction is guided by the second flow guide plate 22, the impact force on the sand pebble gravel body 10 is reduced, and the service life of the sand pebble gravel body 10 is prolonged.

[0054] Embodiments of the application are presented for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the precise forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. An anti-cracking protection device for sand and gravel bodies, characterized by: It comprises a sand and gravel body (10), a clay layer (11) is laid on the water-facing surface of the sand and gravel body (10), a concrete layer (12) is poured on the inclined surface of the clay layer (11), and an anti-cracking protection mechanism is provided on the inclined surface of the concrete layer (12); The anti-crack protection mechanism comprises a grid plate (13) and two protective members (26); a plurality of first support assemblies (16) are connected between the middle portion of the grid plate (13) and the two protective members (26); a plurality of second support assemblies (17) are connected between the grid plate (13) and the protective members (26); and an elastic protective member (27) is connected between the two protective members (26); The first supporting assembly (16) comprises a bottom plate (30) and two rotating plates (31), a rotating shaft (32) is hingedly provided between the two rotating plates (31), a first buffer assembly (33) is connected between the rotating shaft (32) and the middle part of the bottom plate (30), and a second buffer assembly (34) is connected between the bottom plate (30) and the rotating plates (31); The first buffer assembly (33) includes a first shell (40) and two mounting blocks (45), two first movable blocks (41) are symmetrically slidably provided inside the first shell (40), a connecting plate (44) is connected between the first movable blocks (41) and the mounting blocks (45), a fixing rod (42) is provided inside the first shell (40), a first V-shaped elastic member (48) is connected between the two first movable blocks (41), a plurality of elastic protrusions (49) are provided on the inner walls of both ends of the first V-shaped elastic member (48), and a plurality of pairs of first slots (50) are symmetrically provided on one side of the middle portion of the fixing rod (42).

2. The anti-cracking protection device for sand and gravel bodies according to claim 1, characterized in that: One end of the connecting plate (44) is rotatably connected to the mounting block (45), and the other end of the connecting plate (44) is rotatably connected to the first movable block (41). The two ends of the first V-shaped elastic member (48) are respectively fixedly connected to the two first movable blocks (41). A first V-shaped rubber member (46) is connected between the two connecting plates (44). The two ends of the first V-shaped rubber member (46) are respectively fixedly connected to the two connecting plates (44). The middle part of the first V-shaped rubber member (46) is fixedly connected to the outer wall of the rotating shaft (32). A second V-shaped rubber member (47) is connected between the inner walls of the two ends of the first V-shaped rubber member (46). The middle part of the second V-shaped rubber member (47) is connected to the middle part of the first V-shaped elastic member (48).

3. The anti-cracking protection device for sand and gravel bodies according to claim 1, characterized in that: One end of the first support assembly (16) is fixed to the grid plate (13), one end of the second support assembly (17) is in sliding contact with the grid plate (13), the other end of the second support assembly (17) is in sliding contact with the protective member (26), one end of the second support assembly (17) is connected to the interior of the grid plate (13) and is provided with two pairs of first springs (29), two rotating plates (31) in the first support assembly (16) are respectively fixedly connected to the two protective members (26), and the structure of the first support assembly (16) is the same as that of the second support assembly (17).

4. The anti-cracking protection device for sand and gravel bodies according to claim 1, characterized in that: One end of the second buffer component (34) is in sliding contact with the rotating plate (31), and the other end of the second buffer component (34) is in sliding contact with the bottom plate (30). Two first sliding grooves (35) are symmetrically provided on the rotating plate (31). Two first sliders (36) are symmetrically provided at one end of the second buffer component (34). The two first sliders (36) slide in the two first sliding grooves (35) respectively. A pair of second sliding grooves (37) are respectively provided at both ends of the bottom plate (30). Two second sliders (38) are symmetrically provided at the other end of the second buffer component (34). The two second sliders (38) slide in the two second sliding grooves (37) respectively. One side of the second slider (38) is connected to the inner side of the second sliding groove (37) and is provided with a second spring (39).

5. The anti-cracking protection device for sand and gravel bodies according to claim 2, characterized in that: A third spring (43) is provided on each side of the two first movable blocks (41) that are away from each other and are connected to both ends of the interior of the first shell (40). The third spring (43) is wound around the outer wall of the fixing rod (42).

6. The anti-cracking protection device for sand and gravel bodies according to claim 5, characterized in that: The structure of the first buffer assembly (33) is substantially the same as that of the second buffer assembly (34). The difference between the structure of the first buffer assembly (33) and the structure of the second buffer assembly (34) is that a second shell (51) is fixedly provided on both sides of the first buffer assembly (33), a slide plate (52) is slidably provided inside the second shell (51), one end of the slide plate (52) is connected to one end of the second buffer assembly (34), and the other end of the slide plate (52) is provided with a second movable block (53), a movable plate (56) is slidably provided inside the second shell (51), a plurality of first hollow elastic members (55) are connected between the second movable block (53) and the movable plate (56), and a plurality of second hollow elastic members (57) are spaced apart on the inclined surfaces of one side of both ends of the movable plate (56), and a rubber block (61) is provided on both sides of each first movable block (41), and a plurality of second card slots (62) are spaced apart on the inclined surface of one side of the rubber block (61).

7. The anti-cracking protection device for sand and gravel bodies according to claim 6, characterized in that: The interior of the movable plate (56) is communicated with the interior of the first hollow elastic member (55), and the interior of the movable plate (56) is communicated with the interior of the second hollow elastic member (57). A second V-shaped elastic member (58) is provided on one side of the interior of the second hollow elastic member (57), and a third V-shaped elastic member (59) is provided on the other side of the interior of the second hollow elastic member (57). A push rod (60) is connected between the middle of the second V-shaped elastic member (58) and the middle of the third V-shaped elastic member (59). Both ends of the second V-shaped elastic member (58) are in sliding contact with the second hollow elastic member (57), and both ends of the third V-shaped elastic member (59) are respectively connected to the interior of the second hollow elastic member (57). A fourth spring (54) is connected between one side of the second movable block (53) and the interior of the second shell (51).

8. The anti-cracking protection device for sand and gravel bodies according to claim 1, characterized in that: The front side of the protective member (26) is provided with an interception assembly, the front side of the elastic protective member (27) is provided with a first guide plate (24), and a plurality of connecting members (25) are respectively connected between the two interception assemblies and the two sides of the first guide plate (24); the interception assembly comprises a plurality of L-shaped rods (20), the plurality of L-shaped rods (20) are fixed at intervals on the inclined surface of the protective member (26), a plurality of round rods (21) are fixedly connected between the plurality of L-shaped rods (20), one end of the connecting member (25) is connected to one end of the round rod (21), and the other end of the connecting member (25) is connected to the first guide plate (24), a plurality of second guide plates (22) are spaced apart on the front side of the protective member (26), and a plurality of I-shaped members (23) are connected between the protective member (26) and the second guide plate (22).

9. The anti-cracking protection device for sand and gravel bodies according to claim 1, characterized in that: A plurality of counterweights (14) are provided at intervals on the upper side of the sand and gravel body (10); a steel bar (15) is connected between each of the connecting plates (44) and the grid plate (13); a plurality of anchor bars (18) are provided on the lower side of the grid plate (13); and the plurality of anchor bars (18) pass through the clay layer (11) and the concrete layer (12) and extend into the sand and gravel body (10).

10. A method for preventing cracking of a sand and gravel body, comprising the device for preventing cracking of a sand and gravel body according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1 Pretreatment Stage: Clean the surface of the sand and gravel body to remove debris and loose particles to ensure that the surface of the sand and gravel body is flat and clean; S2: Anti-seepage treatment: Lay clay cutoff walls and cast concrete anti-seepage walls on the water-facing surface of the sand and gravel body to form a protective layer on the water-facing surface of the sand and gravel body, using the protective layer to improve the durability and crack resistance of the sand and gravel body; S3: Installation of anti-crack protection structure: Install anti-crack protection components on the surface of the protective layer. The installation position and quantity of anti-crack protection components should be determined according to actual conditions to ensure that they can effectively enhance the wear resistance and impact resistance of the sand and gravel body. S4: Slope protection and wave prevention: Floating object interception structure and diversion structure are arranged on the anti-crack protection structure. The diversion structure is used to guide the water flow impact to both sides, reducing the damage of the water flow impact to the sand and gravel body.

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