Reinforcing structure of reservoir spillway of water conservancy project
By designing adjustable-spacing protective trapezoidal block components and a stability-enhancing structure, the problems of inconvenient installation and water flow impact in existing reservoir spillway reinforcement structures have been solved, achieving convenient installation and stable performance, and extending the service life of the spillway.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZUNHUA WATER AFFAIRS BUREAU
- Filing Date
- 2025-07-25
- Publication Date
- 2026-06-12
AI Technical Summary
The existing reinforcement structure for reservoir spillways is inconvenient to install and cannot effectively reduce the impact of water flow on the sidewalls, thus affecting its service life.
The system employs adjustable-spacing right and left protective trapezoidal blocks. Through the combination of components such as rotating sleeves, rotating heads, long frames, sliding sleeves, tightening screws, tightening screws, and tightening handles, it achieves convenient installation and reduces water flow impact. Chamfered grooves, threaded heads, nuts, and limit plates are used to improve stability and reliability.
This technology enables convenient installation and stable fixation of the spillway reinforcement structure, reduces the impact of water flow, and improves the service life and practicality of the spillway.
Smart Images

Figure CN224351167U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of reservoir spillways, specifically a reinforcement structure for reservoir spillways in water conservancy projects. Background Technology
[0002] Spillways are flood control devices in water conservancy structures such as reservoirs. They are usually built on one side of a dam, resembling a large channel. When the water level in the reservoir exceeds the safe limit, water flows downstream through the spillway to prevent the dam from being destroyed. During the flood season, the high-speed water flow can easily cause erosion on steep slopes and at the outlet of the spillway, thinning the concrete layer of the spillway's sidewalls and affecting its service life. To minimize the risk of spillway collapse, reinforcement structures are necessary.
[0003] An existing reservoir spillway reinforcement structure, such as the one described in patent publication number CN218027546U, features reinforcement plates that effectively enhance the reinforcement and protection of the spillway, reduce the impact of water flow on the side walls of the spillway, making the spillway more stable and extending its service life. The inclusion of buffer pads further reduces the impact of water flow on the side walls of the spillway during use, minimizing the transmission of water impact and increasing the stability of the spillway.
[0004] However, it requires multiple sets of bolts, making installation inconvenient and its practicality insufficient. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a reservoir spillway reinforcement structure for water conservancy projects. This structure features adjustable spacing via the main body to adapt to the inner wall of the spillway, thereby reducing water flow impact. It is easy and stable to install, and improves practicality.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a reinforcement structure for a reservoir spillway in a water conservancy project, comprising a spillway body, a right protective trapezoidal block, a left protective trapezoidal block, a rotating sleeve, a rotating head, a long frame, a sliding sleeve, a tightening screw sleeve, a tightening screw rod, and a tightening handle. The top center of the right protective trapezoidal block is connected to the bottom side of the rotating sleeve, the inner side of the rotating sleeve is rotatably connected to the outer side of the rotating head, the top side of the rotating head is connected to the right side of the bottom of the long frame, the top center of the left protective trapezoidal block is connected to the bottom side of the sliding sleeve, the top center of the sliding sleeve is connected to the bottom side of the tightening screw sleeve, the inner wall of the tightening screw sleeve is screwed to the outer wall of the tightening screw rod, the top side of the tightening screw rod is connected to the middle of the bottom side of the tightening handle, and the inner side of the sliding sleeve is slidably sleeved to the outer side of the long frame.
[0009] Preferably, it also includes a chamfered groove, wherein the outer left side of the long frame is provided with a chamfered groove.
[0010] Preferably, it also includes a threaded head, a nut, and a limiting plate. The middle left side of the long frame is connected to the inner end of the threaded head, the outer side of the threaded head is detachably screwed to the inner side of the nut, and the inner side of the nut is connected to the middle outer side of the limiting plate.
[0011] Preferably, it also includes a top contact pad, wherein the middle of the top side of the long frame is connected to the bottom side of the top contact pad.
[0012] Preferably, it also includes adjacent contact pads, with a set of adjacent contact pads connected to the front side of each set of right and left protective trapezoidal blocks.
[0013] Preferably, the tightening sleeve, tightening screw, and tightening handle are all made of hard stainless steel alloy.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a reinforcement structure for the spillway of a reservoir in a water conservancy project, which has the following beneficial effects:
[0016] During installation, the sliding sleeve is first slid along the outside of the long frame to bring the right and left protective trapezoidal blocks closer together. Then, the right and left protective trapezoidal blocks are simultaneously placed into the area to be reinforced within the spillway body. The sliding sleeve is then slid to the left along the outside of the long frame to move the right and left protective trapezoidal blocks further apart. The rotating head, constrained by the rotating sleeve, rotates the long frame relative to the right protective trapezoidal block until the right and left protective trapezoidal blocks are respectively pressed against the inner walls of both sides of the spillway body. Tighten the top tightening handle to rotate the top tightening screw. The top tightening screw, through its engagement with the top tightening sleeve, acts downwards on the top of the long frame to tighten it, thus forming a fixed interval between the right and left protective trapezoidal blocks, creating protection on both sides. Multiple pairs of right and left protective trapezoidal blocks can be installed together in this way. The combination can reduce the impact of water flow. The spacing can be adjusted only through the main body to adapt to the inner wall of the spillway, thereby reducing the impact of water flow. The installation is convenient and stable, improving practicality. Attached Figure Description
[0017] Figure 1 This is an axial view illustrating the structure of this utility model.
[0018] Figure 2 This utility model Figure 1 Front view;
[0019] Figure 3 This utility model Figure 1 Enlarged structural diagram of section B in the middle;
[0020] Figure 4 This utility model Figure 1 A magnified structural diagram of part A in the middle.
[0021] The following are labels in the attached diagram: 1. Spillway body; 2. Right protective trapezoidal block; 3. Left protective trapezoidal block; 4. Rotating sleeve; 5. Rotating head; 6. Long frame; 7. Sliding sleeve; 8. Tightening screw sleeve; 9. Tightening screw; 10. Tightening handle; 11. Chamfered groove; 12. Threaded head; 13. Nut; 14. Limiting plate; 15. Tightening contact pad; 16. Adjacent contact pad. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Example
[0024] Please see Figure 1-4 A reinforcement structure for a reservoir spillway in a water conservancy project includes a spillway body 1, and further includes a right protective trapezoidal block 2, a left protective trapezoidal block 3, a rotating sleeve 4, a rotating head 5, a long frame 6, a sliding sleeve 7, a tightening screw sleeve 8, a tightening screw 9, and a tightening handle 10. The top center of the right protective trapezoidal block 2 is connected to the bottom side of the rotating sleeve 4, and the inner side of the rotating sleeve 4 is rotatably connected to the outer side of the rotating head 5. The top side of the rotating head 5 is connected to the right side of the bottom of the long frame 6. The top center of the left protective trapezoidal block 3 is connected to the bottom side of the sliding sleeve 7, and the top center of the sliding sleeve 7 is connected to the bottom side of the tightening screw sleeve 8. The inner wall of the tightening screw sleeve 8 is screwed to the outer wall of the tightening screw 9, and the top side of the tightening screw 9 is connected to the center of the bottom of the tightening handle 10. The inner side of the sliding sleeve 7 is slidably sleeved to the outer side of the long frame 6. During installation, the sliding sleeve 7 slides on the outer side of the long frame 6, causing the right protective trapezoidal block 2 to connect with the left protective trapezoidal block 3. The trapezoidal blocks 3 are spaced close together. Then, the right trapezoidal block 2 and the left trapezoidal block 3 are simultaneously placed into the area to be reinforced inside the spillway body 1. The sliding sleeve 7 slides to the left on the outside of the long frame 6, so that the right trapezoidal block 2 and the left trapezoidal block 3 are separated. The long frame 6 rotates relative to the right trapezoidal block 2 under the constraint of the rotating sleeve 4, until the right trapezoidal block 2 and the left trapezoidal block 3 are respectively abutted against the inner walls of both sides of the spillway body 1. Then, the tightening handle 10 is turned to rotate the tightening screw 9. The tightening screw 9 is screwed into the tightening sleeve 8 and acts downward to tighten the top of the long frame 6, thereby forming a spaced and fixed right trapezoidal block 2 and left trapezoidal block 3, forming protection on both sides. Multiple pairs of right trapezoidal blocks 2 and left trapezoidal blocks 3 are installed together in this way. After combination, the impact of water flow can be reduced.
[0025] It also includes a chamfered groove 11, which is provided on the outer left side of the long frame 6; the chamfered groove 11 can reduce the opening of the left side of the long frame 6, making it easier for the sliding sleeve 7 to be inserted into the long frame 6, thus improving convenience.
[0026] It also includes a threaded head 12, a nut 13, and a limiting plate 14. The middle left side of the long frame 6 is connected to the inner end of the threaded head 12. The outer side of the threaded head 12 is detachably screwed to the inner side of the nut 13. The inner side of the nut 13 is connected to the middle outer side of the limiting plate 14. After the sliding sleeve 7 is put into the outer side of the long frame 6, it can limit the left side of the long frame 6, preventing the sliding sleeve 7 from sliding out on the left side of the long frame 6 and improving reliability.
[0027] It also includes a top contact pad 15, with the top middle of the long frame 6 connected to the bottom side of the top contact pad 15; the top contact pad 15 allows for the top contact of the top screw 9 when it is lowered, increasing static friction, preventing slippage, and improving stability.
[0028] It also includes adjacent contact pads 16. Each set of right protective trapezoidal blocks 2 and left protective trapezoidal blocks 3 is connected to a set of adjacent contact pads 16 on the front side. The adjacent contact pads 16 can make contact between adjacent right protective trapezoidal blocks 2 and left protective trapezoidal blocks 3, which can adapt to a small deformation of the contact angle, prevent water from penetrating the gap and impacting the inner wall of the spillway body 1, and improve reliability.
[0029] The tightening sleeve 8, tightening screw 9, and tightening handle 10 are all made of hard stainless steel alloy; this increases the rigidity of the tightening sleeve 8, tightening screw 9, and tightening handle 10, preventing deformation, breakage, and damage, and improving reliability.
[0030] In summary, during the installation of a reservoir spillway reinforcement structure for a water conservancy project, the left side of the long frame 6 is narrowed by the chamfered groove 11, facilitating the insertion of the sliding sleeve 7 into the long frame 6. After the sliding sleeve 7 is inserted into the outside of the long frame 6, the left side of the long frame 6 is limited to prevent the sliding sleeve 7 from sliding out on the left side of the long frame 6. First, the sliding sleeve 7 slides on the outside of the long frame 6, bringing the right protective trapezoidal block 2 and the left protective trapezoidal block 3 closer together. Then, the right protective trapezoidal block 2 and the left protective trapezoidal block 3 are simultaneously placed into the area to be reinforced within the spillway body 1. The sliding sleeve 7 slides to the left on the outside of the long frame 6, moving the right protective trapezoidal block 2 away from the left protective trapezoidal block 3. The rotating head 5 rotates under the constraint of the rotating sleeve 4, causing the long frame 6 to rotate relative to the right protective trapezoidal block 2 until the right protective trapezoidal block 2 and the left protective trapezoidal block 3 are aligned. The left protective trapezoidal block 3 rests against the inner walls of both sides of the spillway body 1 on its outer side. Then, the tightening handle 10 is turned to rotate the tightening screw 9. The tightening screw 9 is screwed into the tightening sleeve 8 and acts downward to tighten the top of the long frame 6. The tightening contact pad 15 allows the tightening screw 9 to make downward tightening contact, increasing static friction and preventing slippage. This forms a fixed interval between the right protective trapezoidal block 2 and the left protective trapezoidal block 3, forming protection on both sides. The adjacent contact pad 16 allows contact between adjacent right protective trapezoidal blocks 2 and left protective trapezoidal blocks 3, which can accommodate a small deformation of the contact angle, preventing water from impacting the inner wall of the spillway body 1 through the gap and reducing the impact of water flow. In addition, it increases the rigidity of the tightening sleeve 8, tightening screw 9 and tightening handle 10, preventing deformation, breakage and damage.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A reinforcement structure for a reservoir spillway in a water conservancy project, comprising a spillway body (1), characterized in that, It also includes a right protective trapezoidal block (2), a left protective trapezoidal block (3), a rotating sleeve (4), a rotating head (5), a long frame (6), a sliding sleeve (7), a tightening screw sleeve (8), a tightening screw (9), and a tightening handle (10). The top middle of the right protective trapezoidal block (2) is connected to the bottom side of the rotating sleeve (4). The inner side of the rotating sleeve (4) is only rotatably connected to the outer side of the rotating head (5). The top side of the rotating head (5) is connected to the right side of the bottom side of the long frame (6). The top middle of the left protective trapezoidal block (3) is connected to the bottom side of the sliding sleeve (7). The top middle of the sliding sleeve (7) is connected to the bottom side of the tightening screw sleeve (8). The inner wall of the tightening screw sleeve (8) is screwed to the outer wall of the tightening screw (9). The top side of the tightening screw (9) is connected to the middle of the bottom side of the tightening handle (10). The inner side of the sliding sleeve (7) is slidably sleeved to the outer side of the long frame (6).
2. The reinforcement structure for a reservoir spillway in a water conservancy project according to claim 1, characterized in that: It also includes a chamfered groove (11), which is provided on the outer left side of the long frame (6).
3. The reinforcement structure for a reservoir spillway in a water conservancy project according to claim 1, characterized in that: It also includes a threaded head (12), a nut (13) and a limiting piece (14). The middle left side of the long frame (6) is connected to the inner end of the threaded head (12). The outer side of the threaded head (12) is detachably screwed to the inner side of the nut (13). The inner side of the nut (13) is connected to the middle outer side of the limiting piece (14).
4. The reinforcement structure for a reservoir spillway in a water conservancy project according to claim 1, characterized in that: It also includes a top contact pad (15), the middle of the top side of the long frame (6) being connected to the bottom side of the top contact pad (15).
5. The reinforcement structure for a reservoir spillway in a water conservancy project according to claim 1, characterized in that: It also includes adjacent contact pads (16), and each set of right protective trapezoidal blocks (2) and left protective trapezoidal blocks (3) is connected to a set of adjacent contact pads (16) on the front side.
6. The reinforcement structure for a reservoir spillway in a water conservancy project according to claim 1, characterized in that: The tightening sleeve (8), tightening screw (9) and tightening handle (10) are all made of hard stainless steel alloy.