Bottom water seal device of upper wave blocking plane gate

Abstract

A bottom water seal device of an upper wave blocking plane gate comprises a bottom main beam rear flange plate of the wave blocking plane gate and an arc-shaped panel at the top of a lower arc gate. The water sealing strip comprises a fixed section, a free section and a P-shaped head which are integrally formed; the fixed section and the P-shaped head are respectively positioned on the upper and lower sides of the free section; the P-shaped head is provided with a convex side and a back side; the fixed section is clamped in a clamping structure at the bottom end of a rear flange plate of the bottom main beam; the free section can be elastically bent to enable the P-shaped head to move towards the arc-shaped panel and abut against the arc-shaped panel. Due to the fact that the water sealing strip is provided with the free section, the free section can be elastically bent in the water pressure acting direction under the water pressure effect of landslide surge impact, the P-shaped head moves towards the arc-shaped panel and abuts against the arc-shaped panel for water stopping, gap jet flow is effectively prevented, and the running safety of the lower arc door is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of metal structures of water conservancy and hydropower engineering, in particular to a bottom water seal device for an upper wave-blocking plane gate. Background Art

[0002] For hydropower and water conservancy projects with adverse landslide bodies in the reservoir area, based on the safety requirements of resisting the impact of landslide surges, some larger-scale flood discharge gates adopt an upper flat and lower arc structure. The flood discharge gates are composed of an upper wave-blocking flat gate and a lower arc gate. In order to prevent the occurrence of gap jets between the upper wave-blocking plane gate and the top of the lower arc gate under landslide and surge conditions, the prior art sets a P-type bottom water seal device at the bottom of the upper wave-blocking plane gate in close contact with the arc panel on the top of the lower arc gate. This water seal device can reduce the probability of the occurrence of gap jets, but the impact force of the landslide and surge has a short acting length on the water seal head, and the deformation that the water seal can adapt to is small. The impact load of the landslide and surge sometimes has a large force on the lower arc gate, so the compression deformation of the lower arc gate is large, which will cause the P-type water seal device to separate from the contact surface of the lower arc gate panel, thereby causing gap jets to cause damage to the lower arc gate; in addition, the P-type water seal device must be assembled with bolts inside the bottom main beam, and the installation is troublesome due to the narrow space inside the bottom main beam; therefore, the prior art is still not perfect and needs to be further improved. Utility Model Content

[0003] The main purpose of the utility model is to provide a bottom water seal device for an upper wave-blocking plane gate, aiming to solve the above-mentioned technical problems.

[0004] To achieve the above-mentioned purpose, the utility model proposes a bottom water seal device for an upper wave-blocking plane gate, comprising a rear flange plate of a bottom main beam of the wave-blocking plane gate and an arc-shaped panel on the top of a lower arc gate; it also comprises a water seal strip, which comprises an integrally formed fixed section, a free section and a P-shaped head; the fixed section and the P-shaped head are respectively located on the upper and lower sides of the free section; the P-shaped head has a convex side and a back side; the fixed section is clamped in a clamping structure at the bottom end of the rear flange plate of the bottom main beam; the free section can be elastically bent to make the P-shaped head move toward the arc-shaped panel and abut against the arc-shaped panel.

[0005] Preferably, the clamping structure includes a bottom water seal support seat and a pressure plate; the bottom water seal support seat is welded to the lower end of the rear flange plate of the bottom main beam; the bottom water seal support seat is an L-shaped steel structure composed of horizontal plates and vertical plates; the pressure plate presses the fixed section into the bottom water seal support seat and fastens it with bolts and nuts.

[0006] Preferably, when the horizontal distance d from the bottom end of the rear flange plate of the bottom main beam to the curved panel satisfies: d≥200mm: the angle between the fixed section and the free section is an obtuse angle; the fixed section is horizontal and extends toward the water pressure side; the convex side of the P-shaped head faces the water pressure side, and the back side of the P-shaped head faces the curved panel.

[0007] Preferably, when the horizontal distance d from the bottom end of the rear flange plate of the bottom main beam to the curved panel satisfies: 180≤d<200mm: the angle between the fixed section and the free section is an obtuse angle; the fixed section is horizontal and extends toward the water pressure side; the convex side of the P-shaped head faces the curved panel, and the back side of the P-shaped head faces the water pressure side.

[0008] Preferably, when the horizontal distance d from the bottom end of the rear flange plate of the bottom main beam to the curved panel satisfies: 150≤d<180mm: the angle between the fixed section and the free section is a right angle; the fixed section is horizontal and extends toward the water pressure side; the convex side of the P-shaped head faces the curved panel, and the back side of the P-shaped head faces the water pressure side.

[0009] Preferably, when the horizontal distance d from the bottom end of the rear flange plate of the bottom main beam to the curved panel satisfies: d<150mm: the angle between the fixed section and the free section is 180 degrees, the fixed section is vertical and forms a strip structure together with the free section; the convex side of the P-shaped head faces the curved panel, and the back side of the P-shaped head faces the water pressure side.

[0010] Preferably, bolt holes are provided on the horizontal plate or on the vertical plate, and bolt holes are also provided on the pressure plate; when bolt holes are provided on the horizontal plate; the fixed section is attached to the lower surface of the horizontal plate, and the pressure plate is pressed against the lower surface of the fixed section; the bolts pass through the horizontal plate, the fixed section, and the pressure plate in sequence and are tightened with nuts; when bolt holes are provided on the vertical plate; the fixed section is attached to the right side surface of the vertical plate, and the pressure plate is pressed against the right side surface of the fixed section; the bolts pass through the pressure plate, the fixed section, and the vertical plate in sequence and are tightened with nuts.

[0011] Preferably, the bolt hole is a countersunk hole.

[0012] Due to the adoption of the above technical solution, the beneficial effects of the utility model are as follows:

[0013] (1) In the present invention, since the water seal strip has a free section, the free section can be elastically bent along the direction of the water pressure under the water pressure of the landslide surge, so that the P-shaped head moves toward the arc panel and abuts against the arc panel to stop water, thereby effectively preventing the occurrence of gap jets and ensuring the safety of the operation of the lower arc door.

[0014] (2) In the present invention, the fixed section of the water seal strip is provided with a bottom water seal support seat with an L-shaped cross section at the lower part of the rear flange plate of the bottom main beam and fixed by bolts and a pressure plate. Since the bolts are installed and removed on the outside of the bottom main beam, they are not affected by the internal space size of the bottom main beam, and installation and removal are very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the first embodiment of the bottom water seal device of the upper wave-blocking plane gate;

[0017] Figure 2 for Figure 1 The large sample picture at A in the middle;

[0018] Figure 3 It is a schematic diagram of the force of the water seal strip in the first embodiment of the bottom water seal device of the upper wave-blocking plane gate;

[0019] Figure 4 It is a schematic diagram of the second embodiment of the bottom water seal device of the upper wave-blocking plane gate;

[0020] Figure 5 for Figure 4 The large sample picture at B in the middle;

[0021] Figure 6 It is a force diagram of the water seal strip in the second embodiment of the bottom water seal device of the upper wave-blocking plane gate;

[0022] Figure 7 It is a schematic diagram of the third embodiment of the bottom water seal device of the upper wave-blocking plane gate;

[0023] Figure 8 for Figure 7 The large sample picture at C in the middle;

[0024] Fig. 9 It is a schematic diagram of a fourth embodiment of the bottom water seal device of the upper wave-blocking plane gate;

[0025] Fig.10 for Fig. 9 A large-scale image of point D in the middle.

[0026] Explanation of the accompanying symbols: 1. Rear flange plate of bottom main beam; 2. Arc-shaped panel; 3. Support seat; 4. Water seal strip; 5. Fixed section; 6. Free section; 7. P-shaped head; 7a. Raised side; 7b. Back side; 8. Bolt; 9. Pressure plate; 10. Horizontal plate; 11. Vertical plate; F, represents the water pressure force. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] Embodiment 1:

[0030] Combination Figures 1 to 3 The figure shows a schematic diagram of a first embodiment of a bottom water seal device for an upper wave-blocking plane gate, which includes a rear flange plate 1 of the bottom main beam of the wave-blocking plane gate, an arc panel 2 of the top of the lower arc gate, and a water seal strip 4, which includes an integrally formed fixed section 5, a free section 6, and a P-shaped head 7; the fixed section 5 and the P-shaped head 7 are respectively located on the upper and lower sides of the free section 6; the P-shaped head 7 has a convex side 7a and a back side 7b; the fixed section 5 is clamped in the clamping structure 3 at the bottom end of the rear flange plate 1 of the bottom main beam; the free section 6 can be elastically bent to make the P-shaped head 7 move toward the arc panel 2 and abut against the arc panel 2. The water seal strip 4 is made of rubber material, which is corrosion-resistant and can withstand various harsh environments.

[0031] Specifically, in the first embodiment, the horizontal distance from the bottom end of the rear flange plate 1 of the bottom main beam to the curved panel 2 is d, which is relatively wide. When d≥200 mm, the water seal strip 4 structure adopted is an inner P-head obtuse-angle water seal, specifically: the angle between the fixed section 5 and the free section 6 is an obtuse angle; the fixed section 5 is horizontal and extends toward the water pressure side; the raised side 7a of the P-shaped head 7 faces the water pressure side, and the back side 7b of the P-shaped head 7 faces the curved panel 2.

[0032] When the water seal strip 4 adopts an inner P-head blunt-angle water seal, the clamping structure 3 includes a bottom water seal support seat and a pressure plate 9; the bottom water seal support seat is welded to the lower end of the bottom main beam rear flange plate 1; the bottom water seal support seat is a L-shaped steel structure composed of a horizontal plate 10 and a vertical plate 11; the pressure plate 9 presses the fixed section 5 into the bottom water seal support seat and fastens it with bolts 8 and nuts. Specifically, bolt holes are provided on the horizontal plate 10, and bolt holes are also provided on the pressure plate 9; the fixed section 5 is attached to the lower surface of the horizontal plate 10, and the pressure plate 9 is pressed against the lower surface of the fixed section 5; the bolts 8 pass through the horizontal plate 10, the fixed section 5, and the pressure plate 9 in sequence and are tightened with nuts.

[0033] Combination Figure 3 As shown, when the water seal strip 4 is subjected to the water pressure force F caused by the impact of landslide surge waves, the free section 6 can bend elastically along the direction of the water pressure, so that the P-shaped head 7 moves toward the curved panel 2, and the back side 7b of the P-shaped head 7 rests on the curved panel 2 to stop water, thereby effectively preventing the occurrence of gap jets and ensuring the safety of the operation of the lower arc door.

[0034] In the first embodiment, since the horizontal distance from the bottom end of the rear flange plate 1 of the bottom main beam to the curved panel 2 is relatively wide, the free section 6 and the P-shaped head 7 of the water seal strip 4 may turn up and enter the gap when subjected to the water pressure force F. Therefore, in order to avoid the problem of turning up, the raised side 7a of the P-shaped head 7 is directed toward the water pressure side, and the back side 7b of the P-shaped head 7 is directed toward the curved panel 2. Through this structural setting, the force condition thereof is as follows: Figure 3 As shown, there is a component force of the water pressure force F acting on the convex side 7a of the P-shaped head 7, so the free section 6 is stretched and deformed under the action of this component force, so that the P-shaped head 7 moves toward the curved panel 2 better, effectively preventing the P-shaped head 7 from turning upward and failing to leak. In addition, the back side 7b of the P-shaped head 7 is facing the curved panel 2, and the back side 7b is conducive to increasing the contact area with the curved panel 2 under pressure, thereby improving the water-stopping effect.

[0035] Embodiment 2:

[0036] Combination Figures 4 to 6The figure shows a schematic diagram of a second embodiment of a bottom water seal device for an upper wave-blocking plane gate, which includes a bottom main beam rear flange plate 1 of a wave-blocking plane gate, an arc panel 2 of a lower arc gate top, and a water seal strip 4, which includes an integrally formed fixed section 5, a free section 6, and a P-shaped head 7; the fixed section 5 and the P-shaped head 7 are respectively located at the upper and lower sides of the free section 6; the P-shaped head 7 has a convex side 7a and a back side 7b; the fixed section 5 is clamped in a clamping structure 3 at the bottom end of the bottom main beam rear flange plate 1; the free section 6 can be elastically bent to make the P-shaped head 7 move toward the arc panel 2 and abut against the arc panel 2. The water seal strip 4 is made of rubber material, which is corrosion-resistant and can withstand various harsh environments.

[0037] Specifically, in the second embodiment, the horizontal distance from the bottom end of the rear flange plate 1 of the bottom main beam to the curved panel 2 is d, and when 180≤d<200mm: the water seal strip 4 structure adopted is an external P-head obtuse water seal, specifically: the angle between the fixed section 5 and the free section 6 is an obtuse angle; the fixed section 5 is horizontal and extends toward the water pressure side; the raised side 7a of the P-shaped head 7 faces the curved panel 2, and the back side 7b of the P-shaped head 7 faces the water pressure side.

[0038] When the water seal strip 4 adopts an external P-head blunt-angle water seal, the clamping structure 3 includes a bottom water seal support seat and a pressure plate 9; the bottom water seal support seat is welded to the lower end of the bottom main beam rear flange plate 1; the bottom water seal support seat is a L-shaped steel structure composed of a horizontal plate 10 and a vertical plate 11; the pressure plate 9 presses the fixed section 5 in the bottom water seal support seat and fastens it through bolts 8 and nuts. Specifically, bolt holes are provided on the horizontal plate 10, and bolt holes are also provided on the pressure plate 9; the fixed section 5 is attached to the lower surface of the horizontal plate 10, and the pressure plate 9 is pressed against the lower surface of the fixed section 5; the bolts 8 pass through the horizontal plate 10, the fixed section 5, and the pressure plate 9 in sequence and are tightened with nuts.

[0039] Combination Figure 6 As shown, when the water seal strip 4 is subjected to the water pressure force F caused by the impact of landslide surge waves, the free section 6 can bend elastically along the direction of the water pressure, so that the P-shaped head 7 moves toward the curved panel 2, and the raised side 7a of the P-shaped head 7 abuts against the curved panel 2 to stop water, thereby effectively preventing the occurrence of gap jets and ensuring the safety of the operation of the lower arc door.

[0040] In the second embodiment, the angle α between the tangent of the contact point of the convex side 7a of the P-shaped head 7 and the free section 6 is relatively small, and the possibility of the free section 6 and the P-shaped head 7 of the water seal strip 4 turning up and entering the gap under the action of the water pressure force F is small, which can avoid turning over failure and water leakage; Figure 6As shown, when subjected to the water pressure force F, it acts on the free section 6 and the back side 7b of the P-shaped head 7, and the convex side 7a of the P-shaped head 7 abuts against the curved panel 2 to stop water.

[0041] Embodiment three:

[0042] Combination Figure 7 , Figure 8 The figure shows a schematic diagram of a third embodiment of a bottom water seal device for an upper wave-blocking plane gate, which includes a rear flange plate 1 of the bottom main beam of the wave-blocking plane gate, an arc panel 2 of the top of the lower arc gate, and a water seal strip 4, which includes an integrally formed fixed section 5, a free section 6, and a P-shaped head 7; the fixed section 5 and the P-shaped head 7 are respectively located on the upper and lower sides of the free section 6; the P-shaped head 7 has a convex side 7a and a back side 7b; the fixed section 5 is clamped in the clamping structure 3 at the bottom end of the rear flange plate 1 of the bottom main beam; the free section 6 can be elastically bent to make the P-shaped head 7 move toward the arc panel 2 and abut against the arc panel 2. The water seal strip 4 is made of rubber material, which is corrosion-resistant and can withstand various harsh environments.

[0043] Specifically, in the third embodiment, the horizontal distance from the bottom end of the rear flange plate 1 of the bottom main beam to the curved panel 2 is d, and when 150≤d<180mm: the water seal strip 4 structure adopted is an external P-head right-angle water seal, specifically: the angle between the fixed section 5 and the free section 6 is a right angle; the fixed section 5 is horizontal and extends toward the water pressure side; the raised side 7a of the P-shaped head 7 faces the curved panel 2, and the back side 7b of the P-shaped head 7 faces the water pressure side.

[0044] When the water seal strip 4 adopts an external P-head right-angle water seal, the clamping structure 3 includes a bottom water seal support seat and a pressure plate 9; the bottom water seal support seat is welded to the lower end of the bottom main beam rear flange plate 1; the bottom water seal support seat is a L-shaped steel structure composed of a horizontal plate 10 and a vertical plate 11; the pressure plate 9 presses the fixed section 5 in the bottom water seal support seat and fastens it through bolts 8 and nuts. Specifically, bolt holes are provided on the horizontal plate 10, and bolt holes are also provided on the pressure plate 9; the fixed section 5 is attached to the lower surface of the horizontal plate 10, and the pressure plate 9 is pressed against the lower surface of the fixed section 5; the bolts 8 pass through the horizontal plate 10, the fixed section 5, and the pressure plate 9 in sequence and are tightened with nuts.

[0045] When the water seal strip 4 is subjected to the water pressure force F caused by the impact of the landslide surge, its working principle is the same as that in the second embodiment, and will not be described in detail here.

[0046] Embodiment 4:

[0047] Combination Fig. 9 , Fig.10The figure shows a schematic diagram of a fourth embodiment of a bottom water seal device for an upper wave-blocking plane gate, which includes a bottom beam rear flange plate 1 of a wave-blocking plane gate, an arc panel 2 of a lower arc gate top, and a water seal strip 4, which includes an integrally formed fixed section 5, a free section 6, and a P-shaped head 7; the fixed section 5 and the P-shaped head 7 are respectively located at the upper and lower sides of the free section 6; the P-shaped head 7 has a convex side 7a and a back side 7b; the fixed section 5 is clamped in a clamping structure 3 at the bottom end of the bottom beam rear flange plate 1; the free section 6 can be elastically bent to make the P-shaped head 7 move toward the arc panel 2 and abut against the arc panel 2. The water seal strip 4 is made of rubber material, which is corrosion-resistant and can withstand various harsh environments.

[0048] Specifically, in the fourth embodiment, the horizontal distance from the bottom end of the rear flange plate 1 of the bottom main beam to the curved panel 2 is d. When d is less than 150 mm, the water seal strip 4 used is a long-handled large P-head water seal, specifically, the angle between the fixed section 5 and the free section 6 is 180 degrees, the fixed section 5 is vertical and together with the free section 6 forms a strip structure; the raised side 7a of the P-shaped head 7 faces the curved panel 2, and the back side 7b of the P-shaped head 7 faces the water pressure side.

[0049] When the water seal strip 4 adopts a long-handled large P-head water seal, the clamping structure 3 includes a bottom water seal support seat and a pressure plate 9; the bottom water seal support seat is welded to the lower end of the bottom main beam rear flange plate 1; the bottom water seal support seat is a L-shaped steel structure composed of a horizontal plate 10 and a vertical plate 11; the pressure plate 9 presses the fixed section 5 into the bottom water seal support seat and fastens it with bolts 8 and nuts. Specifically, bolt holes are provided on the vertical plate 11, and bolt holes are also provided on the pressure plate 9; the fixed section 5 is attached to the right side of the vertical plate 11, and the pressure plate 9 is pressed against the right side of the fixed section 5; the bolt 8 passes through the pressure plate 9, the fixed section 5, and the vertical plate 11 in sequence and is tightened with a nut.

[0050] In the fourth embodiment, since the horizontal distance from the bottom end of the rear flange plate 1 of the bottom main beam to the curved panel 2 is small, the fixed section 5 is vertically shaped and together with the free section 6 forms a strip structure, which is conducive to assembly in a narrow space. At the same time, the bolt holes on the clamping structure 3 are countersunk holes, and the bolt heads and nuts of the bolts 8 are both arranged in the countersunk heads of the bolt holes. The countersunk holes are used to make the clamping structure 3 more compact.

[0051] In the fourth embodiment, since the horizontal distance d from the bottom end of the rear flange plate 1 of the bottom main beam to the curved panel 2 is small, a P-shaped head 7 with a larger diameter can be used to match the distance d, that is, the convex side 7a of the P-shaped head 7 can directly abut against the curved panel 2 to stop water. When the water seal strip 4 is subjected to the water pressure force F of the landslide surge, the free section 6 can be slightly elastically bent along the direction of the water pressure, so that the convex side 7a of the P-shaped head 7 is further abutted against the curved panel 2.

[0052] In the fourth embodiment, the fixed section 5 is vertical and together with the free section 6 forms a strip structure, so that the water seal strip 4 forms a long-handled large P-head water seal structure. This form can increase the ability of the water seal strip 4 to adapt to deformation and effectively ensure that the P-shaped head 7 contacts the curved panel 2 to stop water under greater water pressure.

[0053] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made under the concept of the present invention using the contents of the specification and drawings of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A bottom water seal device for an upper wave-blocking plane gate, comprising a rear flange plate (1) of a bottom main beam of a wave-blocking plane gate and an arc-shaped panel (2) on the top of a lower arc gate; characterized in that: It also includes a water seal strip (4), which includes an integrally formed fixed section (5), a free section (6) and a P-shaped head (7); the fixed section (5) and the P-shaped head (7) are respectively located on the upper and lower sides of the free section (6); The P-shaped head (7) has a convex side (7a) and a back side (7b); The fixing section (5) is clamped in the clamping structure (3) at the bottom end of the rear flange plate (1) of the bottom main beam; The free section (6) can be elastically bent to enable the P-shaped head (7) to move toward the curved panel (2) and abut against the curved panel (2).

2. The upper wave-blocking plane gate bottom water seal device according to claim 1, characterized in that: The clamping structure (3) comprises a bottom water seal support seat and a pressure plate (9); the bottom water seal support seat is welded to the lower end of the bottom main beam rear flange plate (1); the bottom water seal support seat is a steel structure with an L-shaped cross section composed of a horizontal plate (10) and a vertical plate (11); the pressure plate (9) presses the fixed section (5) into the bottom water seal support seat and fastens it via bolts (8) and nuts.

3. The upper wave-blocking plane gate bottom water seal device according to claim 1, characterized in that: When the horizontal distance d from the bottom end of the rear flange plate (1) of the bottom main beam to the curved panel (2) satisfies: d ≥ 200 mm: The angle between the fixed section (5) and the free section (6) is an obtuse angle; the fixed section (5) is horizontal and extends toward the water pressure side; The convex side (7a) of the P-shaped head (7) faces the water pressure side, and the back side (7b) of the P-shaped head (7) faces the curved panel (2).

4. The upper wave-blocking plane gate bottom water seal device according to claim 1, characterized in that: When the horizontal distance d from the bottom end of the rear flange plate (1) of the bottom main beam to the curved panel (2) satisfies: 180≤d<200mm: The angle between the fixed section (5) and the free section (6) is an obtuse angle; the fixed section (5) is horizontal and extends toward the water pressure side; The convex side (7a) of the P-shaped head (7) faces the curved panel (2), and the back side (7b) of the P-shaped head (7) faces the water pressure side.

5. The upper wave-blocking plane gate bottom water seal device according to claim 1, characterized in that: When the horizontal distance d from the bottom end of the rear flange plate (1) of the bottom main beam to the curved panel (2) satisfies: 150≤d<180mm: The angle between the fixed section (5) and the free section (6) is a right angle; the fixed section (5) is horizontal and extends toward the water pressure side; The convex side (7a) of the P-shaped head (7) faces the curved panel (2), and the back side (7b) of the P-shaped head (7) faces the water pressure side.

6. The upper wave-blocking plane gate bottom water seal device according to claim 1, characterized in that: When the horizontal distance d from the bottom end of the rear flange plate (1) of the bottom main beam to the curved panel (2) satisfies: d<150mm: The angle between the fixed section (5) and the free section (6) is 180 degrees; the fixed section (5) is vertical and forms a strip structure together with the free section (6); The convex side (7a) of the P-shaped head (7) faces the curved panel (2), and the back side (7b) of the P-shaped head (7) faces the water pressure side.

7. The upper wave-blocking plane gate bottom water seal device as claimed in claim 2, characterized in that: Bolt holes are provided on the horizontal plate (10) or the vertical plate (11), and bolt holes are also provided on the pressure plate (9); When bolt holes are provided in the horizontal plate (10), the fixing section (5) is fitted on the lower surface of the horizontal plate (10), and the pressing plate (9) is pressed against the lower surface of the fixing section (5). The bolts (8) are passed through the horizontal plate (10), the fixing section (5), and the pressing plate (9) in sequence and then tightened with nuts. When a bolt hole is provided on the vertical plate (11), the fixing section (5) is fitted on the right side surface of the vertical plate (11), and the pressure plate (9) is pressed against the right side surface of the fixing section (5); the bolt (8) passes through the pressure plate (9), the fixing section (5), and the vertical plate (11) in sequence and is tightened with a nut.

8. The upper wave-blocking plane gate bottom water seal device according to claim 7, characterized in that: The bolt hole is a countersunk hole.

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