Joint waterproof structure for hydroelectric power engineering

Abstract

The invention discloses a joint waterproof structure for hydroelectric engineering, and relates to the technical field of joint waterproofing, the joint waterproof structure comprises a hydraulic engineering dam, a lifting mechanism is mounted at the upper end of the cut-off position of the hydraulic engineering dam, the larger water flow is, the stronger the impact effect on the inclined surface of a trapezoidal block is, and when the inclined surface of the trapezoidal block is impacted, the higher the water flow is. The trapezoid blocks can adaptively extrude the rubber strips along the strip-shaped grooves, the rubber strips can be gradually pressed on the inner sides of the side edge inner buckle plates under extrusion of the trapezoid blocks, the sealing effect is enhanced through water flow impact force, meanwhile, water flow can also impact the side edge inner buckle plates, and the sealing effect is improved. When water flow is generated, the side edge inner buckle plate can also extrude the rubber strip in the forward direction, so that the reinforced sealing effect of self-adaption water flow impact force is further improved, after the outer portion of the rubber strip is abraded, the rubber strip can stretch out in a self-adaption mode under forward and reverse impact extrusion so as to achieve the self-adaption abrasion compensation effect, and for a large water conservancy project gate, the sealing effect is good. Manual participation is not needed, the adaptability is high, and the sealing effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of joint waterproofing, in particular to a joint waterproofing structure for a hydropower engineering project. Background Art

[0002] Water conservancy projects are a general term for various engineering projects built to control, utilize and protect surface and underground water resources and the environment.

[0003] Hydropower generation is inseparable from water-blocking dams. The main principle is to use the kinetic energy of water generated by the difference in liquid levels between upstream and downstream to achieve power generation. Generally speaking, hydropower dams can not only generate electricity, but also bear the important responsibility of storing water or discharging flood water. Therefore, an indispensable part of a hydropower dam is the flood discharge channel, which is equipped with lifting gates.

[0004] Existing water conservancy project gates are generally immersed in water during the non-flood discharge period, and the sides and bottom of the gates are sealed by rubber seals. Long-term immersion and water flow impact will cause great damage to the rubber seals. Under the impact of water flow and the friction of the opening and closing of the gates, the edges of the rubber parts will gradually be worn and consumed, resulting in a decrease in waterproof performance over time. The gates in existing water conservancy project dams are designed to have sufficient size based on the flood discharge needs of previous years. Generally speaking, the gates are large in size, and it is more troublesome to replace the rubber parts after they are worn, and it requires the cooperation of multiple people.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original joint waterproof structure used in hydropower generation projects. Summary of the invention

[0006] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. Specifically, the purpose of the present invention is to provide a joint waterproof structure for hydropower generation projects to solve the above-mentioned background technology that the existing water conservancy project gates are generally immersed in water during the non-flood discharge period, and the sides and bottom of the gates are sealed by rubber seals. The rubber seals are severely damaged by long-term immersion and water flow impact, and under the impact of water flow and the opening and closing friction of the gates, the edges of the rubber parts will gradually be worn and consumed, resulting in a decrease in waterproof performance over time. The gates in the existing water conservancy project dams are designed with sufficient dimensions based on the flood discharge needs of previous years. Generally speaking, the gates are large in size, and it is troublesome to replace the rubber parts after they are worn, and it requires the cooperation of multiple people.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a joint waterproof structure for a hydropower generation project, comprising a hydropower project dam, a lifting and lowering mechanism is installed at the upper end of the cutoff of the hydropower project dam, and a gate connected to the lifting and lowering mechanism is fitted inside the cutoff, side inner gusset plates are symmetrically installed at the joints between the gate and the hydropower project dam on both sides, a bottom pressurized water inlet is opened at the center of the water-facing surface of the gate, and side pressurized water inlets are symmetrically opened on both sides of the bottom pressurized water inlet, a side water seal pressurizing assembly is installed between the side inner gusset plate and the side pressurized water inlet, and a bottom water seal pressurizing assembly is installed at the lower end of the gate.

[0008] Preferably, the gate is arranged with a surface that is convex in the middle and concave on both sides, and the side pressurized water inlets are opened at the recessed positions on both sides of the gate at equal intervals from top to bottom, and the bottom pressurized water inlet is opened on the convex central surface of the gate.

[0009] Preferably, both sides of the water-facing surface of the gate are provided with outwardly inclined protrusions, and the side edges of the inclined protrusions of the gate are located inside the side inner gusset plates, and the inclination of the side edges of the gate is the same as the inclination of the inner surface of the side inner gusset plates.

[0010] Preferably, the side water seal pressurizing assembly includes a water inlet channel, a strip groove, a trapezoidal block and a rubber strip, and the port of the side pressurized water inlet is connected to the water inlet channel opened inside the gate, the end of the water inlet channel is connected to the strip groove, and the inner end of the strip groove is fitted with a trapezoidal block, and the end of the trapezoidal block is fixed with a rubber strip, the end of the side inner gusset plate is slidably fitted with the side wall of the water conservancy project dam, and the end of the side inner gusset plate is evenly spaced from top to bottom with a first clamping positioning assembly.

[0011] Preferably, the inclined surface of the trapezoidal block corresponds to the water inlet direction of the water inlet channel, and the end of the rubber strip passes through the strip groove and fits the inner wall of the side inner gusset plate, and the water inlet channels are evenly spaced from top to bottom on the side of the strip groove.

[0012] Preferably, the first clamping and positioning assembly includes a first fixed frame, a first telescopic rod and a first spring, and the side wall of the water conservancy project dam is fixed with the first fixed frame, one end of the first telescopic rod is slidably arranged inside the first fixed frame, and the other end of the first telescopic rod passes through the first fixed frame and is fixed to the outer wall of the side inner buckle plate, the outer wall of the first telescopic rod is wrapped with a first spring, one end of the first spring is welded to the inner wall of the first fixed frame, and the other end of the first spring is fixed to the end of the first telescopic rod.

[0013] Preferably, the bottom water seal pressurizing assembly includes a vertical cavity, a cavity groove, a triangular push block, a triangular rubber sealing block and a bottom inner buckle plate, and the inner port of the bottom pressurized water inlet is connected to one end of the vertical cavity, and the other end of the vertical cavity is through-connected to the cavity groove opened at the lower end of the gate, a triangular push block is fitted at the inner end of the cavity groove, and a triangular rubber sealing block is fixed to the end of the triangular push block, a bottom inner buckle plate that is slidably fitted with the dam of the water conservancy project is obliquely arranged at the port of the cavity groove, and a second clamping and positioning assembly is evenly spaced at the end of the bottom inner buckle plate.

[0014] Preferably, the water inlet pressurization direction of the bottom pressurized water inlet corresponds to the inclined surface of the triangular push block, and the side inclination of the triangular rubber sealing block is the same as the inclination of the inner side surface of the bottom inner buckle plate.

[0015] Preferably, the second clamping and positioning assembly includes a second fixed frame, a second telescopic rod and a second spring, and the second fixed frame is fixed to the upper surface of the water conservancy project dam, one end of the second telescopic rod is slidably arranged inside the second fixed frame, and the other end of the second telescopic rod passes through and is fixed to the outer wall of the bottom inner buckle plate, the outer wall of the second telescopic rod is wrapped with a second spring, one end of the second spring is welded to the end of the second telescopic rod, and the other end of the second spring is fixed to the inner wall of the second fixed frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The gate is set with a surface that is convex in the middle and concave on both sides, and the side pressurized water inlets are opened at the recessed positions on both sides of the gate at equal intervals from top to bottom, and the bottom pressurized water inlet is opened on the convex central surface of the gate. When water flows impact the gate, the water flow impact that was originally spread on the entire surface of the gate will be dispersed and gathered in the grooves corresponding to the side pressurized water inlets on both sides. On the one hand, it can stably reduce the water flow impact that the gate has been subjected to over the years. On the other hand, after the water flows gather in the grooves, it will enter the corresponding water inlet channels through multiple side pressurized water inlets. The water flow inside the water inlet channel will have an impact on the inclined surface of the trapezoidal block, and the greater the water flow, the stronger the impact effect on the inclined surface of the trapezoidal block. When the inclined surface of the trapezoidal block is impacted, the trapezoidal block will adaptively squeeze the rubber strip along the strip groove. Under the synchronous extrusion of multiple trapezoidal blocks, the rubber strip will gradually be pressed against the inner side of the side inner gusset plate, achieving the enhanced sealing effect of adaptive water flow impact force. At the same time, the water flow will also have an impact on the side inner gusset plate. When the water flow is generated, the side inner gusset plate will also positively squeeze the rubber strip, thereby further enhancing the enhanced sealing effect of adaptive water flow impact force, and avoiding direct contact between the water flow and the rubber strip, thereby increasing the service life of the rubber strip. Moreover, when the outer surface of the rubber strip is worn, the rubber strip will adaptively extend under positive and reverse impact extrusion to achieve the effect of adaptive compensation for wear. For large-scale water conservancy project gates, no manual participation is required, the adaptability is strong, and the sealing effect is good. At the same time, the joint between the gate and the water conservancy project dam can be further sealed and waterproofed through a clever negative angle bend.

[0017] At the same time, when the water flow hits the gate head-on, part of the water flow received by the gate will be gathered in the central recessed area of ​​the gate. Therefore, the impact water flow will adaptively enter the bottom pressurized water inlet and impact the inclined surface of the triangular push block. After the inclined surface force is transformed, the triangular push block will convert the impact into a horizontal movement effect, so that the triangular push block pushes the triangular rubber sealing block horizontally outward along the cavity, so that the triangular rubber sealing block can be pushed out of the cavity and sent into the triangular vacancy inside the bottom inner gusset plate, thereby forming a negative angle seal. The greater the water flow impact, the smaller the triangular push block The stronger the squeezing effect between the rubber sealing block and the bottom inner buckle plate, the better the sealing effect. At the same time, the bottom inner buckle plate will also positively squeeze the protruding triangular rubber sealing block under the positive impact of the water flow, thereby utilizing the positive and reverse synchronous compression action to further enhance the sealing effect between the triangular rubber sealing block and the bottom inner buckle plate. Moreover, the bottom inner buckle plate can be adaptively movable, and the triangular rubber sealing block is made of rubber. Therefore, when the gate needs to be raised, the squeezing effect between the triangular rubber sealing block and the bottom inner buckle plate will cause it to produce adaptive "avoidance", which will not affect the normal rise and fall of the gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of a first three-dimensional structure of the gate of the present invention; Figure 4 It is a second three-dimensional structural schematic diagram of the gate of the present invention; Figure 5 It is a front view structural schematic diagram of the gate of the present invention; Figure 6 It is a schematic diagram of the side cross-sectional structure of the gate of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the gate of the present invention from top view; Figure 8 For the present invention Figure 6 The enlarged structural diagram at A in the middle; Fig. 9 For the present invention Figure 7 Enlarged structural diagram at B in the middle.

[0019] In the figure: 1. water conservancy project dam; 2. lifting and lowering mechanism; 3. gate; 31. side pressurized water inlet; 32. trapezoidal block; 33. rubber strip; 4. side inner gusset plate; 41. first fixed frame; 42. first telescopic rod; 43. first spring; 5. bottom pressurized water inlet; 51. cavity; 52. triangular push block; 53. triangular rubber sealing block; 6. bottom inner gusset plate; 61. second fixed frame; 62. second telescopic rod; 63. second spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-9 The present invention provides a technical solution: a joint waterproof structure for a hydropower generation project, comprising a hydropower project dam 1, a lifting and lowering mechanism 2 is installed at the upper end of the cutoff of the hydropower project dam 1, and a gate 3 connected to the lifting and lowering mechanism 2 is fitted inside the cutoff, side inner gusset plates 4 are symmetrically installed at the joints between the gate 3 and the hydropower project dam 1 on both sides, a bottom pressurized water inlet 5 is opened at the center of the water-facing surface of the gate 3, and side pressurized water inlets 31 are symmetrically opened on both sides of the bottom pressurized water inlet 5, a side water seal pressurizing assembly is installed between the side inner gusset plate 4 and the side pressurized water inlet 31, and a bottom water seal pressurizing assembly is installed at the lower end of the gate 3.

[0022] The gate 3 is set with a surface that is convex in the middle and concave on both sides, and the side pressurized water inlets 31 are opened at the concave positions on both sides of the gate 3 at equal intervals from top to bottom, and the bottom pressurized water inlet 5 is opened on the convex central surface of the gate 3.

[0023] Both sides of the water-facing surface of the gate 3 are provided with outwardly inclined protrusions, and the side edges of the inclined protrusions of the gate 3 are located inside the side inner gusset plate 4, and the side slope of the gate 3 is the same as the slope of the inner surface of the side inner gusset plate 4.

[0024] The side water seal pressurizing assembly includes a water inlet channel, a strip groove, a trapezoidal block 32 and a rubber strip 33, and the port of the side pressurizing water inlet 31 is connected to the water inlet channel opened inside the gate 3, the end of the water inlet channel is connected to the strip groove, and the inner end of the strip groove is fitted with a trapezoidal block 32, and the end of the trapezoidal block 32 is fixed with a rubber strip 33, the end of the side inner gusset plate 4 is slidably fitted with the side wall of the water conservancy project dam 1, and the end of the side inner gusset plate 4 is evenly spaced from top to bottom with a first clamping positioning assembly.

[0025] The inclined surface of the trapezoidal block 32 corresponds to the water inlet direction of the water inlet channel, and the end of the rubber strip 33 passes through the strip groove and fits the inner wall of the side inner gusset plate 4, and the water inlet channels are evenly spaced from top to bottom on the side of the strip groove.

[0026] The first clamping and positioning assembly includes a first fixed frame 41, a first telescopic rod 42 and a first spring 43, and the side wall of the water conservancy project dam 1 is fixed with the first fixed frame 41, one end of the first telescopic rod 42 is slidably arranged inside the first fixed frame 41, and the other end of the first telescopic rod 42 passes through the first fixed frame 41 and is fixed to the outer wall of the side inner buckle plate 4, the outer wall of the first telescopic rod 42 is wrapped with the first spring 43, and one end of the first spring 43 is welded to the inner wall of the first fixed frame 41, and the other end of the first spring 43 is fixed to the end of the first telescopic rod 42.

[0027] The bottom water seal pressurizing assembly includes a vertical cavity, a cavity groove 51, a triangular push block 52, a triangular rubber sealing block 53 and a bottom inner buckle plate 6, and the inner port of the bottom pressurized water inlet 5 is connected to one end of the vertical cavity, and the other end of the vertical cavity is through-connected to the cavity groove 51 opened at the lower end of the gate 3, the inner end of the cavity groove 51 is fitted with a triangular push block 52, and the end of the triangular push block 52 is fixed with a triangular rubber sealing block 53, and the end of the cavity groove 51 is inclinedly provided with a bottom inner buckle plate 6 that is slidably fitted with the water conservancy project dam 1, and the end of the bottom inner buckle plate 6 is evenly spaced with a second clamping and positioning assembly.

[0028] The water inlet pressurization direction of the bottom pressurized water inlet 5 corresponds to the inclined surface of the triangular push block 52 , and the side slope of the triangular rubber sealing block 53 is the same as the slope of the inner side surface of the bottom inner buckle plate 6 .

[0029] The second clamping and positioning assembly includes a second fixed frame 61, a second telescopic rod 62 and a second spring 63, and the second fixed frame 61 is fixed to the upper surface of the water conservancy project dam 1, one end of the second telescopic rod 62 is slidably arranged inside the second fixed frame 61, and the other end of the second telescopic rod 62 passes through and is fixed to the outer wall of the bottom inner buckle plate 6, the outer wall of the second telescopic rod 62 is wrapped with a second spring 63, and one end of the second spring 63 is welded to the end of the second telescopic rod 62, and the other end of the second spring 63 is fixed to the inner wall of the second fixed frame 61.

[0030] Working principle: When using the joint waterproof structure for hydropower engineering, Figure 3 , Figure 4 and Figure 7 As shown, the gate 3 is set with a surface that is convex in the middle and concave on both sides, and the side pressurized water inlets 31 are opened at the concave positions on both sides of the gate 3 at equal intervals from top to bottom, and the bottom pressurized water inlet 5 is opened on the convex central surface of the gate 3. When the water flow hits the gate 3, the water flow impact originally spread on the entire surface of the gate 3 will be dispersed and gathered in the grooves corresponding to the side pressurized water inlets 31 on both sides. On the one hand, it can stably reduce the water flow impact on the gate 3 over the years, and on the other hand, after the water flow is gathered in the grooves, it will enter the corresponding water inlet channel through multiple side pressurized water inlets 31, as shown in FIG. Fig. 9 As shown, the water flow inside the water inlet channel will have an impact on the inclined surface of the trapezoidal block 32, and the greater the water flow, the stronger the impact effect on the inclined surface of the trapezoidal block 32. When the inclined surface of the trapezoidal block 32 is impacted, the trapezoidal block 32 will adaptively squeeze the rubber strip 33 along the strip groove. Under the synchronous squeezing of multiple trapezoidal blocks 32, the rubber strip 33 will gradually be pressed against the inner side of the side inner gusset plate 4, so as to achieve a strengthened sealing effect of adaptive water flow impact force. At the same time, the water flow will also have an impact on the side inner gusset plate 4, and the side inner gusset plate 4 will also be positively squeezed when the water flow is generated. The rubber strip 33 further enhances the sealing effect of the adaptive water flow impact force, avoids direct contact between the water flow and the rubber strip 33, and improves the service life of the rubber strip 33. When the outer surface of the rubber strip 33 is worn, the rubber strip 33 will adaptively extend under the positive and negative impact extrusion to achieve the effect of adaptive compensation for wear. For the gate 3 of a large-scale water conservancy project, no manual participation is required, the adaptability is strong, and the sealing effect is good. At the same time, the joint between the gate 3 and the water conservancy project dam 1 can further achieve a sealing and waterproof effect through a clever negative angle bend.

[0031] At the same time, if Figure 6 and Figure 8As shown, when the water flow hits the gate 3 head-on, a part of the water flow received by the gate 3 will be gathered in the central recessed area of ​​the gate 3, so the impacting water flow will adaptively enter the bottom pressurized water inlet 5 and produce an impact on the inclined surface of the triangular push block 52. After the inclined surface force is transformed, the triangular push block 52 will convert the impact received into a horizontal movement effect, so that the triangular push block 52 pushes the triangular rubber sealing block 53 horizontally outward along the cavity 51, so that the triangular rubber sealing block 53 can be pushed out of the cavity 51 and sent into the triangular vacancy inside the bottom inner buckle plate 6, thereby forming a negative angle seal, and the greater the water flow impact, the greater the triangular push block 52 will be. The stronger the squeezing effect between the corner rubber sealing block 53 and the bottom inner buckle plate 6, the better the sealing effect. At the same time, the bottom inner buckle plate 6 will also positively squeeze the protruding triangular rubber sealing block 53 under the positive impact of the water flow, thereby utilizing the positive and reverse synchronous compression action to further enhance the sealing effect between the triangular rubber sealing block 53 and the bottom inner buckle plate 6. Moreover, the bottom inner buckle plate 6 can be adaptively movable, and the triangular rubber sealing block 53 is made of rubber. Therefore, when the gate 3 needs to be raised, the squeezing effect between the triangular rubber sealing block 53 and the bottom inner buckle plate 6 will cause it to produce adaptive "avoidance", thereby not affecting the normal taking off and lowering of the gate 3.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A joint waterproof structure for a hydropower project, comprising a hydropower project dam (1), characterized in that: A lifting mechanism (2) is installed at the upper end of the cutoff of the water conservancy project dam (1), and a gate (3) connected to the lifting mechanism (2) is arranged inside the cutoff, and side inner buckle plates (4) are symmetrically installed at the joints between the two sides of the gate (3) and the water conservancy project dam (1), and a bottom pressurized water inlet (5) is opened at the center of the water-facing surface of the gate (3), and side pressurized water inlets (31) are symmetrically opened on both sides of the bottom pressurized water inlet (5), a side water seal pressurizing assembly is installed between the side inner buckle plate (4) and the side pressurized water inlet (31), and a bottom water seal pressurizing assembly is installed at the lower end of the gate (3).

2. A joint waterproof structure for a hydropower project according to claim 1, characterized in that: The gate (3) is arranged with a surface that is convex in the middle and concave on both sides, and the side pressurized water inlets (31) are arranged at equal intervals from top to bottom at the concave positions on both sides of the gate (3), and the bottom pressurized water inlet (5) is arranged on the convex central surface of the gate (3).

3. A joint waterproof structure for a hydropower project according to claim 1, characterized in that: Both sides of the water-facing surface of the gate (3) are provided with outwardly inclined protrusions, and the side edges of the inclined protrusions of the gate (3) are located inside the side inner buckle plate (4), and the inclination of the side edge of the gate (3) is the same as the inclination of the inner surface of the side inner buckle plate (4).

4. A joint waterproof structure for a hydropower project according to claim 1, characterized in that: The side water seal pressurizing component comprises a water inlet channel, a strip groove, a trapezoidal block (32) and a rubber strip (33), and the port of the side pressurizing water inlet (31) is connected to the water inlet channel opened inside the gate (3), the end of the water inlet channel is connected to the strip groove, and the inner end of the strip groove is fitted with a trapezoidal block (32), and the end of the trapezoidal block (32) is fixed with a rubber strip (33), the end of the side inner buckle plate (4) is slidably fitted with the side wall of the water conservancy project dam (1), and the end of the side inner buckle plate (4) is evenly spaced from top to bottom with a first pressing and positioning component.

5. A joint waterproof structure for a hydropower project according to claim 4, characterized in that: The inclined surface of the trapezoidal block (32) corresponds to the water inlet direction of the water inlet channel, and the end of the rubber strip (33) passes through the strip groove and fits the inner wall of the side inner buckle plate (4), and the water inlet channels are evenly spaced from top to bottom on the side of the strip groove.

6. A joint waterproof structure for a hydropower project according to claim 4, characterized in that: The first pressing and positioning assembly comprises a first fixed frame (41), a first telescopic rod (42) and a first spring (43), and the side wall of the water conservancy project dam (1) is fixed with the first fixed frame (41), one end of the first telescopic rod (42) is slidably arranged inside the first fixed frame (41), and the other end of the first telescopic rod (42) passes through the first fixed frame (41) and is fixed to the outer wall of the side inner buckle plate (4), the outer wall of the first telescopic rod (42) is wound with a first spring (43), one end of the first spring (43) is welded to the inner wall of the first fixed frame (41), and the other end of the first spring (43) is fixed to the end of the first telescopic rod (42).

7. The joint waterproof structure for a hydropower project according to claim 1, characterized in that: The bottom water seal pressurizing component comprises a vertical cavity, a cavity groove (51), a triangular push block (52), a triangular rubber sealing block (53) and a bottom inner buckle plate (6), wherein the inner port of the bottom pressurizing water inlet (5) is connected to one end of the vertical cavity, and the other end of the vertical cavity is connected to the cavity groove (51) opened at the lower end of the gate (3), the inner end of the cavity groove (51) is fitted with a triangular push block (52), and the end of the triangular push block (52) is fixed with a triangular rubber sealing block (53), the end of the cavity groove (51) is inclinedly provided with a bottom inner buckle plate (6) that is slidably fitted with the water conservancy project dam (1), and the end of the bottom inner buckle plate (6) is evenly spaced with second pressing and positioning components.

8. A joint waterproof structure for a hydropower project according to claim 7, characterized in that: The water inlet pressure direction of the bottom pressure water inlet (5) corresponds to the inclined surface of the triangular push block (52), and the side slope of the triangular rubber sealing block (53) is the same as the slope of the inner side surface of the bottom inner buckle plate (6).

9. A joint waterproof structure for a hydropower project according to claim 7, characterized in that: The second pressing and positioning assembly comprises a second fixing frame (61), a second telescopic rod (62) and a second spring (63), and the second fixing frame (61) is fixed to the upper surface of the water conservancy project dam (1), one end of the second telescopic rod (62) is slidably arranged inside the second fixing frame (61), and the other end of the second telescopic rod (62) penetrates and is fixed to the outer wall of the bottom inner buckle plate (6), the second spring (63) is wound around the outer wall of the second telescopic rod (62), one end of the second spring (63) is welded to the end of the second telescopic rod (62), and the other end of the second spring (63) is fixed to the inner wall of the second fixing frame (61).

Images