Buffer mechanism and dam foundation anti-seepage reinforcing device

Abstract

The utility model relates to the technical field of hydraulic engineering, in particular to a buffer mechanism and a dam foundation seepage-proofing reinforcing device, which comprise a buffer assembly, the buffer assembly comprises a support, the support comprises more than two long rods, one ends of the more than two long rods are connected with each other, and the long rods are respectively sleeved with a sleeve and a spring; the supporting assembly comprises supporting rods, the number of the supporting rods corresponds to the number of the long rods, one end of each supporting rod is hinged to the sleeve, and the other end of each supporting rod is connected with a supporting seat in a hinged mode at the same time; through linkage of the cross-shaped support, the sleeve and the spring, kinetic energy of water flow is converted into deformation energy of the spring, and buffering of the water flow to the buffering plate is buffered.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to a buffer mechanism and a dam foundation anti-seepage reinforcement device. Background Technology

[0002] Water conservancy projects are a general term for various engineering constructions undertaken to control, utilize, and protect surface and underground water resources and the environment, and to eliminate water hazards. In the process of river management, dams are built on both sides of the river. After the dams are built, anti-seepage structures are used to prevent water seepage, reduce seepage flow, lower the phreatic line, and prevent seepage damage.

[0003] Chinese utility model patent CN219710197U discloses a novel anti-seepage structure for water conservancy dams, including a dam body and a first anti-seepage plate. The first anti-seepage plate is located at the bottom right side of the dam body. During installation, multiple sets of first and second anti-seepage plates are removed. The first anti-seepage plates are then inserted into connecting slots at the bottom of the second anti-seepage plate using three sets of equally spaced connecting blocks fixed at their top ends. Connecting bolts are then used at both ends and the middle of the bottom right side of the second anti-seepage plate, passing through the right side and screwing into the threaded holes. The first and second anti-seepage plates are then combined and extended to match the inclined length of the dam body. This allows for adjustment of the installation height of the anti-seepage structure based on the length of the dam body, solving the problem of inconvenient adjustment of the installation height.

[0004] The above-mentioned scheme lacks a mechanism to buffer the scouring and impact force of the water flow in the reservoir during actual use. Under the long-term impact of the water flow, it is easy to cause damage to the seepage prevention board and the dam foundation, reducing the service life of the seepage prevention structure. Utility Model Content

[0005] In view of the problem that the seepage-proof board lacks impact-resistant cushioning in the above or existing technologies, this utility model is proposed.

[0006] Therefore, the purpose of this invention is to provide a buffer mechanism.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a buffer assembly, the buffer assembly including a bracket, the bracket including two or more long rods, one end of the two or more long rods being connected to each other, and a sleeve and a spring respectively fitted on the long rods; and,

[0008] A support assembly includes support rods, the number of which corresponds to the number of long rods. One end of each support rod is hinged to the sleeve, and the other end of each support rod is simultaneously hinged to a support base.

[0009] In a preferred embodiment of the buffer mechanism of this utility model, the support rod is provided with hinged ends at both ends, and hinged holes are provided in the hinged ends.

[0010] In a preferred embodiment of the buffer mechanism of this utility model, the support assembly further includes a hinge groove, which is formed on the side wall of the support base. A hinge pin is provided in the hinge groove, and the hinge pin is adapted to the hinge hole.

[0011] In a preferred embodiment of the buffer mechanism of this utility model, the buffer assembly further includes a support plate, which is disposed on the side wall of the sleeve. Two support plates are symmetrically arranged, and a support pin is disposed between the two support plates. The support pin is adapted to the hinge hole.

[0012] In a preferred embodiment of the buffer mechanism of this utility model, the buffer assembly further includes a baffle plate disposed at the outer end of the long rod.

[0013] The beneficial effects of the buffer mechanism of this utility model are as follows: This utility model converts the kinetic energy of water flow into the deformation energy of the spring through the linkage of the bracket, sleeve and spring, thus buffering the impact of water flow on the support.

[0014] In actual use, there is still the problem that the anti-seepage board is not easy to install.

[0015] To solve the above-mentioned technical problems, this utility model also provides the following technical solution: a dam foundation seepage prevention and reinforcement device, including a buffer mechanism and a seepage prevention component, wherein the seepage prevention component includes a seepage prevention plate, a buffer chamber is provided in the seepage prevention plate, the buffer chamber is adapted to the buffer mechanism, and installation grooves are provided on both sides of the seepage prevention plate.

[0016] As a preferred embodiment of the dam foundation seepage prevention and reinforcement device of this utility model, the seepage prevention component further includes a buffer plate, which is covered on the buffer chamber. The outer side of the buffer plate is provided with a groove, which is continuously arranged in a wave shape.

[0017] As a preferred embodiment of the dam foundation seepage prevention and reinforcement device of this utility model, it further includes a frame assembly, the frame assembly including a bottom beam, side beams are respectively arranged vertically upward at both ends of the bottom beam, and mounting strips are arranged on the opposite sides of the side beams.

[0018] As a preferred embodiment of the dam foundation seepage prevention and reinforcement device of this utility model, the frame assembly further includes vertical beams, and several vertical beams are provided, which are equally spaced and vertically arranged on the bottom beam.

[0019] As a preferred embodiment of the dam foundation seepage prevention and reinforcement device of this utility model, wherein: installation strips are respectively provided on both sides of the vertical beam, and the installation strips are adapted to the installation groove.

[0020] The beneficial effects of this utility model's dam foundation seepage prevention and reinforcement device are as follows: the modular design of the seepage prevention components enables rapid installation of the seepage prevention components and frame components; and the cooperation between the buffer components and the seepage prevention components enhances the robustness of the dam foundation. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall buffer mechanism.

[0023] Figure 2 This is a cross-sectional view of the seepage prevention and reinforcement device for the dam foundation.

[0024] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0025] Figure 4 This is a schematic diagram of the dam foundation seepage prevention and reinforcement device without the top beam installed.

[0026] Figure 5 This is a schematic diagram of the overall structure of the dam foundation seepage prevention and reinforcement device.

[0027] Figure 6 This is a schematic diagram of the support rod. Detailed Implementation

[0028] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0029] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0030] Reference Figure 1 This embodiment provides a buffer mechanism 1, including a buffer component 11. The buffer component 11 can deform when subjected to pressure, and the buffer component 11 returns to its original shape after the pressure is removed.

[0031] The buffer assembly 11 includes a bracket 111, which includes two or more long rods 111-1. In this embodiment, the long rods 111-1 are preferably four. One end of the four long rods 111-1 are connected to each other to form a cross shape so that each long rod 111-1 is subjected to uniform force.

[0032] It should be noted that when there are two long rods 111-1, the two long rods 111-1 form a straight line; when there are three long rods 111-1, the three long rods 111-1 are set 120 degrees apart.

[0033] A sleeve 114 and a spring 113 are respectively fitted on the long rod 111-1. The sleeve 114 can push the spring 113 to compress the spring 113, or the sleeve 114 can return to its original position under the elastic force of the spring 113.

[0034] As an optional embodiment, refer to Figure 1 The buffer mechanism 1 also includes a support component 12, which includes support rods 122, and the number of support rods 122 corresponds to the number of long rods 111-1.

[0035] One end of the support rod 122 is hinged to the sleeve 114, and the other end of each support rod 122 is simultaneously hinged to a support seat 121. When the support seat 121 is subjected to pressure, it can move inward due to its hinged connection with the support rod 122. The support rod 122 is hinged to the sleeve 114, which facilitates the displacement of the support rod 122 when the support seat 121 is subjected to pressure.

[0036] As an optional embodiment, refer to Figure 6 The support rod 122 is provided with hinge ends 122-1 at both ends, and a hinge hole 122-2 is provided in the hinge end 122-1; furthermore, in order to facilitate the rotation of the support rod 122, the outer wall of the hinge end 122-1 is provided with an arc surface.

[0037] As an optional embodiment, refer to Figure 3 The support assembly 12 further includes a hinge groove 123, which is formed on the side wall of the support base 121. In this embodiment, four hinge grooves 123 are equally spaced on the side wall of the support base 121.

[0038] A hinge pin 124 is provided in the hinge groove 123. The hinge pin 124 is adapted to the hinge hole 122-2. The support rod 122 is sleeved on the hinge pin 124 through the hinge hole 122-2 and forms a hinge connection with the hinge pin 124.

[0039] As an optional embodiment, refer to Figure 1 The buffer assembly 11 further includes a support plate 115, which is disposed on the side wall of the sleeve 114. Two support plates 115 are symmetrically arranged, and a support pin 116 is disposed between the two support plates 115. The support pin 116 is adapted to the hinge hole 122-2. The support rod 122 is sleeved on the support pin 116 through the hinge hole 122-2 and forms a hinge connection with the support pin 116.

[0040] As an optional embodiment, refer to Figure 1 The buffer assembly 11 further includes a baffle 112, which is fixedly connected to the outer end of the long rod 111-1 and can limit the spring 113 between the baffle 112 and the sleeve 114.

[0041] This utility model also provides a dam foundation seepage prevention and reinforcement device, including the aforementioned buffer mechanism, and seepage prevention components 3, which are provided in several groups, as shown in the reference. Figure 2 .

[0042] As an optional embodiment, refer to Figure 2 The seepage prevention component 3 includes a seepage prevention plate 31, and a buffer chamber 32 is provided inside the seepage prevention plate 31. The buffer chamber 32 is adapted to the buffer mechanism, and four baffles 112 are fixedly connected to the four inner side walls of the buffer chamber 32 on the side away from the spring 113.

[0043] As an optional embodiment, refer to Figure 4 The seepage barrier 31 has mounting grooves 35 on both sides, which can slide along the mounting strip 26 to install the seepage barrier 31 into the frame assembly 2.

[0044] As an optional embodiment, refer to Figure 2 and 3The seepage-proof component 3 also includes a buffer plate 33, which covers the buffer chamber 32. The inner side of the buffer plate 33 is fixedly connected to the top surface of the support base 121. When the buffer plate 33 is subjected to the scouring and impact force of the water flow, the buffer plate 33 deforms inward and simultaneously exerts pressure on the support base 121. The support base 121 pushes the support rod 122, and the support rod 122 drives the sleeve 114 to move along the long rod 111-1, causing the spring 113 to be compressed and deformed. The buffer plate 33 is subjected to the scouring and impact force of the water flow. After the impact force dissipates, the spring 113 pushes the sleeve 114 to reset, and the sleeve 114 drives the support rod 122 to converge towards the support seat 121. The support seat 121 lifts up the inward deformation of the buffer plate 33 caused by the scouring and impact force and restores it to its original shape. Through the setting of the spring 113, the scouring and impact force on the buffer plate 33 is buffered, reducing the risk of damage caused by long-term impact on the buffer plate 33. After the impact force dissipates, the buffer plate 33 can return to its original shape in order to cope with the scouring and impact of the water flow again.

[0045] The impermeable board and buffer board are made of glass fiber reinforced concrete (GFRC) or carbon fiber composite material, which can simultaneously meet the requirements of strength, corrosion resistance and lightweight, and can effectively resist long-term water flow erosion.

[0046] Furthermore, refer to Figure 4 The outer side of the buffer plate 33 is provided with a groove 34, and there are several grooves 34, each groove 34 is arranged in a wave-like continuous manner.

[0047] The setting of groove 34 achieves turbulent energy reduction. The groove surface increases the contact roughness between the water flow and the buffer plate, and the boundary layer separation effect promotes the transformation of laminar flow into turbulent flow, thereby reducing the overall kinetic energy of the water flow.

[0048] The grooves create localized vortices in the water flow, similar to the karman vortex street phenomenon. This decomposes the concentrated impact force at a single point into a dynamic pressure distribution at multiple points, preventing stress concentration from damaging the structure and achieving pressure dispersion.

[0049] The groove and spring form a dual buffer system of "surface energy dissipation + deep energy absorption", which works together to buffer and more effectively reduce the impact of water flow on the seepage prevention component 3.

[0050] The grooves enhance the impact resistance of the buffer plate by altering its hydrodynamic properties.

[0051] As an optional embodiment, refer to Figure 4 and 5 The dam foundation seepage prevention and reinforcement device also includes a frame assembly 2, which includes a bottom beam 21. Side beams 22 are fixedly installed vertically upward at both ends of the bottom beam 21, and mounting strips 26 are provided on the opposite sides of the side beams 22. The bottom beam 21 and the side beams 22 are fixedly connected to the dam foundation with bolts.

[0052] As an optional embodiment, refer to Figure 4 and 5 The frame component 2 also includes vertical beams 23, which are provided in several pieces and are vertically fixed to the bottom beam 21 at equal intervals.

[0053] The overall size of the frame component 2 can be set according to the overall seepage prevention requirements of the dam foundation. If the bottom beam 21 is long, the number of vertical beams 23 will be increased accordingly to accommodate the installation size of the seepage prevention component 3.

[0054] As an optional embodiment, refer to Figure 4 The vertical beam 23 is provided with mounting strips 26 on both sides, and the mounting strips 26 are adapted to the mounting grooves 35. When assembling the seepage prevention component 3 with the frame component 2, the mounting grooves 35 of the seepage prevention component 3 slide into the frame component 2 along the mounting strips 26. The cooperation between the mounting strips 26 and the mounting grooves 35 improves the overall installation and positioning efficiency of the device. After the seepage prevention component 3 is installed, the top beam 24 is fixedly installed on the top of the side beams 22 and the vertical beams 23. The top beam 24 fixes the seepage prevention component 3 in the frame component 2.

[0055] The top beam 24 has installation slots on both sides, which can be used to cooperate with the installation strip 26. After the top beam 24 is installed in place, it is fixed to the dam foundation with bolts.

[0056] It should be noted that frame component 2 does not always require the installation of the top beam 24 for complete enclosure. For some sloping dam sections, such as those with a seepage barrier height designed above the historical high water level, the top does not need to be enclosed.

[0057] Furthermore, polysulfide sealant is filled at the joints between the bottom beam 21, side beam 22, and vertical beam 23 and the seepage barrier 31, with a thickness ≥20mm. The material requirements are: water pressure resistance ≥0.5MPa, elongation >300%, conforming to GB / T13477 standard, to meet the overall sealing requirements of the device.

[0058] A composite rubber waterstop is pre-embedded on the buffer plate 33, which interlocks with the waterstop pre-embedded in the anti-seepage plate to improve the overall waterproof performance of the anti-seepage component 3.

[0059] As an optional embodiment, refer to Figure 4 The frame component 2 also includes a scale bar 25, which is formed by printing scale lines on the vertical beam 23. The printed coating can be made of wear-resistant and corrosion-resistant materials, such as laser-engraved ceramic coating.

[0060] When installing the seepage barrier, the scale strip 25 allows for precise alignment of adjacent vertical strips, preventing leakage or uneven stress due to misalignment.

[0061] During operation and maintenance monitoring, scale bar 25 facilitates:

[0062] During operation and maintenance monitoring, managers can intuitively obtain water level information by setting the scale bar 25, quickly determine the potential impact of water level changes on the dam foundation, adjust flood control strategies in a timely manner, and indirectly improve the reliability of the seepage prevention structure.

[0063] The buffer assembly of this device is linked with the spring 113 through the bracket 111, sleeve 114, and spring 113 to convert the kinetic energy of the water flow into the deformation energy of the spring, thereby buffering the water flow on the buffer plate.

[0064] The modular design of the seepage-proof component 3 enables rapid installation of the seepage-proof component 3 and the frame component 2.

[0065] In conclusion, this device meets the actual needs of the project and has strong practicality.

[0066] The following describes the construction process of this device:

[0067] 1. The bottom beam 21, side beam 22 and vertical beam 23 are fixed to the dam foundation surface with bolts;

[0068] 2. Insert the waterproofing component 3 between the side beam 22 and the vertical beam 23 through the installation groove;

[0069] 3. Install the top horizontal beam 24 and fix the top beam 24 to the dam foundation surface with bolts;

[0070] 4. Inject polysulfide sealant into each joint of the device, and then press the pre-embedded waterstop into each joint;

[0071] 5. Finally, install stainless steel cover plates at each joint to cover the joints.

[0072] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A damping mechanism (1), characterized in that: The buffering assembly (11) comprises a support (111) including two or more long rods (111-1) with one end of each long rod (111-1) connected to each other, and a sleeve (114) and a spring (113) respectively sleeved on each long rod (111-1); and The support assembly (12) comprises a support rod (122) corresponding to the number of long rods (111-1), one end of the support rod (122) is hingedly connected to the sleeve (114), and the other end of each support rod (122) is hingedly connected to a support seat (121).

2. The buffering mechanism according to claim 1, wherein: Both ends of the support rod (122) are respectively provided with a hinged end (122-1), and a hinged hole (122-2) is formed in the hinged end (122-1).

3. The buffering mechanism according to claim 2, wherein: The support assembly (12) further comprises a hinged groove (123) formed in the side wall of the support seat (121), and a hinged pin (124) is arranged in the hinged groove (123), and the hinged pin (124) is matched with the hinged hole (122-2).

4. The buffering mechanism according to claim 2 or 3, wherein: The buffering assembly (11) further comprises a support plate (115) arranged on the side wall of the sleeve (114), and the support plate (115) is symmetrically arranged in two, and a support pin (116) is arranged between the two support plates (115), and the support pin (116) is matched with the hinged hole (122-2).

5. The buffering mechanism according to claim 1, wherein: The buffering assembly (11) further comprises a baffle (112) arranged at the outer end of the long rod (111-1). The buffering mechanism according to any one of claims 1-5, and 6. A dam foundation seepage-proofing and reinforcing device, characterized in that: The anti-seepage assembly (3) comprises an anti-seepage plate (31) with a buffering cavity (32) formed therein, the buffering cavity (32) is matched with the buffering mechanism, and installation grooves (35) are formed on both sides of the anti-seepage plate (31).

7. The dam foundation anti-seepage reinforcement device according to claim 6, wherein: The anti-seepage assembly (3) further comprises a buffering plate (33) arranged on the buffering cavity (32), a groove (34) is formed on the outer side of the buffering plate (33), and the groove (34) is continuously arranged in a wavy shape.

8. The dam foundation anti-seepage reinforcement device according to claim 7, wherein: Further comprising a frame assembly (2) including a bottom beam (21) with a side beam (22) vertically arranged on each end of the bottom beam (21), and an installation strip (26) arranged on the opposite side of the side beam (22). ​ 9. The dam foundation seepage-proofing and reinforcing device according to claim 8, characterized in that: The frame assembly (2) further comprises vertical beams (23), which are provided in several, vertically and equidistantly arranged on the bottom beams (21).

10. The dam foundation seepage-proofing and reinforcing device according to claim 9, characterized in that: The vertical beams (23) are respectively provided with mounting strips (26) on both sides, which are matched with the mounting grooves (35).

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