Bottom shaft driven flap gate

Abstract

The utility model relates to the technical field of hydraulic engineering, in particular to a bottom shaft driving flap gate which comprises a gate leaf, a bottom shaft fixedly installed at the bottom of the gate leaf, a hoist chamber, a bottom water stop assembly and a hydraulic locking assembly. The bottom water stop assembly is installed on the water facing side of the bottom shaft. The bottom water stop assembly comprises a P-type rubber strip, a bottom water stop support and supporting square steel. The P-type rubber strip is fixedly installed on the bottom water stop support, a pressing plate is installed on the upper surface of the P-type rubber strip, and the arc end of the P-type rubber strip abuts against the surface of the bottom shaft. The supporting square steel is fixedly connected to the inner side of the bottom water stop support, and the arc end of the P-shaped rubber strip is supported on the supporting square steel. The hydraulic locking assembly comprises a pair of crank arms and a pair of locking shafts; each crank arm is fixedly connected with a locking plate, and each locking plate is provided with a plurality of locking holes. The bottom water stop assembly solves the problems that an existing bottom shaft driving flap gate bottom water stop assembly is poor in water stop performance, and a locking assembly is poor in stress.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to a bottom shaft driven flap gate. Background Art

[0002] The bottom shaft driven flap gate is a new type of adjustable overflow gate. It stores water when the gate is upright and drains water when the gate is closed. The flip angle of the gate leaf can be controlled according to actual needs to adjust the water level. It has a simple structure and can save manufacturing and construction costs. It is widely used in the field of water conservancy engineering technology.

[0003] The bottom shaft driven flap gate includes a door leaf connected to the bottom shaft, a hoisting and closing device installed in the hoisting and closing machine room, a crank arm, a locking assembly, a civil structure and a wall pipe, etc.; the bottom shaft is supported on the civil structure through a hinge seat, and the bottom shaft can drive the door leaf to stand up and lie down when it rotates. A water stop needs to be provided on the water side of the bottom shaft to avoid water leakage between the bottom shaft and the hinge seat; in addition, in order to ensure the flipping angle of the door leaf, the locking shaft in the locking assembly needs to be accurately inserted into the corresponding locking hole.

[0004] However, the following problems exist in the production and construction of the bottom shaft driven flap gate: First, the commonly used water stop is a rubber water stop strip, which is fixed on the bottom water stop seat and against the water side of the bottom shaft, but the interval between the bottom water stop seat and the bottom shaft is large, and the side of the rubber water stop strip in contact with the bottom shaft lacks a supporting mechanism. Under the action of water flow, sand and gravel often rush between the rubber water stop strip and the bottom shaft, resulting in reduced water stopping performance of the rubber water stop strip, and the side of the rubber water stop strip in contact with the bottom shaft is often pulled and deformed due to friction, further reducing the water stopping performance of the rubber water stop strip; Second, the locking assembly includes a locking seat and a locking shaft, and the locking seat is fixed to the wall of the gate room through a cantilever plate. After long-term use, the locking seat subjected to the cantilever force often becomes loose, affecting the locking function of the locking shaft and the locking seat.

[0005] Based on this, it is necessary to invent a bottom shaft driven flap gate to solve the above problems. Utility Model Content

[0006] The utility model provides a bottom shaft driven flap gate to solve the problems that the bottom water stop assembly of the current bottom shaft driven flap gate has poor water stop performance and the locking assembly has poor force bearing.

[0007] The utility model is realized by adopting the following technical solutions:

[0008] A bottom shaft driven flap gate, comprising a gate leaf, a bottom shaft fixedly mounted at the bottom of the gate leaf, a hoist chamber, a plurality of river hinge seats and a gate chamber hinge seat, and also comprising a bottom water stop assembly and a hydraulic locking assembly;

[0009] There are two hoisting machine rooms, which are respectively arranged on both sides of the door leaf; each hoisting machine room is equipped with a hydraulic hoisting assembly;

[0010] Several river hinges and lock chamber hinges jointly support the bottom shaft;

[0011] The bottom water-stop assembly is installed on the water-facing side of the bottom shaft; the bottom water-stop assembly includes a P-type rubber strip, a bottom water-stop support and a supporting square steel; the P-type rubber strip is fixedly installed on the bottom water-stop support, a pressure plate is installed on the upper surface of the P-type rubber strip, and the arc end of the P-type rubber strip is against the surface of the bottom shaft; the supporting square steel is fixedly connected to the inner side of the bottom water-stop support, and the arc end of the P-type rubber strip is supported on the supporting square steel;

[0012] The hydraulic locking assembly is installed in the two hoist chambers; the hydraulic locking assembly includes a pair of crank arms and a pair of locking shafts; each crank arm is fixedly connected to a locking plate, and each locking plate is provided with a plurality of locking holes; one end of each locking shaft is connected to a hydraulic cylinder, and each hydraulic cylinder is installed on the inner wall of the corresponding hoist chamber;

[0013] The two ends of the bottom shaft extend into the interior of the two gate hoist chambers respectively, and the two end shaft sections of the bottom shaft that pass through the walls of the gate hoist chambers are sleeved with wall-penetrating pipes.

[0014] Furthermore, each hydraulic opening and closing assembly includes a hydraulic telescopic rod and a bearing seat.

[0015] Furthermore, one end of each crank arm is fixedly connected to the movable end of the corresponding hydraulic telescopic rod, and the other end of each crank arm is fixedly connected to the end of the bottom shaft.

[0016] Furthermore, there are two gate chamber hinge seats, which are respectively located in two gate hoist chambers.

[0017] Furthermore, a bottom shaft retaining ring is provided between the pipe opening of each wall-penetrating tube and the bottom shaft, an annular pressure cover is fixedly connected to the end of each wall-penetrating tube away from the door leaf, and a rubber water-stop ring is sandwiched between each annular pressure cover and the corresponding bottom shaft retaining ring.

[0018] Furthermore, the plurality of locking holes are all elliptical holes.

[0019] The structural design of the utility model is reasonable and reliable. The bottom water-stop component adopts a P-type rubber strip, and a pressure plate and a supporting square steel are newly added on the basis of the bottom water-stop support to fix the P-type rubber strip, thereby ensuring that the P-type rubber strip will not be greatly deformed. On the basis of not affecting the compression amount of the P-type rubber strip, it can prevent sand and gravel from being washed between the P-type rubber strip and the bottom shaft, thereby effectively ensuring the water-stopping effect of the bottom water-stop component; the locking plate in the hydraulic locking component is fixedly connected to the crank arm itself, thereby avoiding the disadvantage that the original locking seat cantilever is not well stressed; in addition, a rubber water-stop ring is arranged on the shaft section of the bottom shaft that passes through the wall of the gate chamber, and the rubber water-stop ring can fill the gap between the annular pressure cover and the bottom shaft retaining ring, thereby effectively preventing water leakage, and the applicability is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a top view of the utility model.

[0021] Figure 2 It is a transverse sectional view of the utility model.

[0022] Figure 3 yes Figure 1 Longitudinal section view along line AA.

[0023] Figure 4 yes Figure 1 Longitudinal section view along line BB.

[0024] Figure 5 It is a structural schematic diagram of the wall-penetrating pipe in the utility model.

[0025] Figure 6 yes Figure 3 A partial enlarged schematic diagram of point C in the middle.

[0026] Figure 7 yes Figure 5 A partial enlarged schematic diagram of point D in the middle.

[0027] In the figure: 1-door leaf, 2-bottom shaft, 3-river hinge seat, 4-lock chamber hinge seat, 5-P-type rubber strip, 6-bottom water-stop bearing, 7-support square steel, 8-pressure plate, 9-crank arm, 10-locking shaft, 11-locking plate, 12-locking hole, 13-wall pipe, 14-hydraulic telescopic rod, 15-load-bearing seat, 16-bottom shaft retaining ring, 17-annular pressure cover, 18-rubber water-stop ring. DETAILED DESCRIPTION

[0028] A bottom shaft driven flap gate, comprising a gate leaf 1, a bottom shaft 2 fixedly mounted at the bottom of the gate leaf 1, a hoist chamber, a plurality of river hinge seats 3 and a gate chamber hinge seat 4, and also comprising a bottom water stop assembly and a hydraulic locking assembly;

[0029] There are two hoisting machine rooms, which are respectively arranged on both sides of the door leaf 1; each hoisting machine room is equipped with a hydraulic hoisting assembly;

[0030] A plurality of river hinge seats 3 and a lock chamber hinge seat 4 jointly support the bottom shaft 2;

[0031] The bottom water-stop assembly is installed on the water-facing side of the bottom shaft 2; the bottom water-stop assembly includes a P-type rubber strip 5, a bottom water-stop support 6 and a supporting square steel 7; the P-type rubber strip 5 is fixedly installed on the bottom water-stop support 6, a pressure plate 8 is installed on the upper surface of the P-type rubber strip 5, and the arc end of the P-type rubber strip 5 is against the surface of the bottom shaft 2; the supporting square steel 7 is fixedly connected to the inner side of the bottom water-stop support 6, and the arc end of the P-type rubber strip 5 is supported on the supporting square steel 7; the supporting square steel 7 and the pressure plate 8 can limit and support the P-type rubber strip 5 to prevent the P-type rubber strip 5 from deflecting or deforming significantly, thereby ensuring the water-stopping effect of the bottom water-stop assembly;

[0032] The hydraulic locking assembly is installed in two hoist chambers; the hydraulic locking assembly includes a pair of crank arms 9 and a pair of locking shafts 10; each crank arm 9 is fixedly connected to a locking plate 11, and each locking plate 11 is provided with a plurality of locking holes 12; one end of each locking shaft 10 is connected to a hydraulic cylinder, and each hydraulic cylinder is installed on the inner wall of the corresponding hoist chamber;

[0033] The two ends of the bottom shaft 2 extend into the interior of the two gate hoist chambers respectively, and the two end shaft sections of the bottom shaft 2 that penetrate the walls of the gate hoist chambers are sleeved with wall-penetrating pipes 13.

[0034] Each hydraulic opening and closing assembly includes a hydraulic telescopic rod 14 and a bearing seat 15.

[0035] One end of each crank arm 9 is fixedly connected to the movable end of the corresponding hydraulic telescopic rod 14 , and the other end of each crank arm 9 is fixedly connected to the end of the bottom shaft 2 .

[0036] There are two gate chamber hinge seats 4, which are respectively located in two gate hoist chambers.

[0037] A bottom shaft retaining ring 16 is provided between the pipe opening of each through-wall pipe 13 and the bottom shaft 2, and an annular gland 17 is fixedly connected to the end of each through-wall pipe 13 away from the door leaf 1, and a rubber water stop ring 18 is sandwiched between each annular gland 17 and the corresponding bottom shaft retaining ring 16. The rubber water stop ring 18 can fill the gap between the annular gland 17 and the bottom shaft retaining ring 16 to effectively prevent water leakage.

[0038] The plurality of locking holes 12 are all elliptical holes. The design of the elliptical holes can facilitate the locking shaft 10 to be quickly inserted into the corresponding locking hole 12, and the position alignment accuracy requirement of the locking shaft 10 and the locking hole 12 is low.

[0039] The door leaf 1 is in the upright and horizontal positions by the crank arms 9 on both sides of the door leaf 1 driving the bottom shaft 2; the hydraulic telescopic rod 14 drives the crank arms 9 to rotate, and the crank arms 9 drive the bottom shaft 2 to rotate, so that the door leaf 1 fixedly installed on the top of the bottom shaft 2 is flipped to realize the upright door and the horizontal door; when it is necessary to lock the door leaf 1 to keep the target flipping angle, the locking shaft 10 is controlled by the hydraulic cylinder to be inserted into one of the locking holes 12 that can achieve the target flipping angle.

[0040] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottom shaft driven flap gate, comprising a gate leaf (1), a bottom shaft (2) fixedly mounted on the bottom of the gate leaf (1), a hoisting machine room, a plurality of river hinge seats (3) and a gate chamber hinge seat (4), characterized in that: It also includes a bottom water stop assembly and a hydraulic locking assembly; There are two hoisting machine rooms, which are respectively arranged on both sides of the door leaf (1); a hydraulic hoisting assembly is installed in each hoisting machine room; A plurality of river hinge seats (3) and a lock chamber hinge seat (4) jointly support the bottom shaft (2); The bottom water-stop assembly is installed on the water-facing side of the bottom shaft (2); the bottom water-stop assembly comprises a P-type rubber strip (5), a bottom water-stop support (6) and a supporting square steel (7); the P-type rubber strip (5) is fixedly installed on the bottom water-stop support (6), a pressure plate (8) is installed on the upper surface of the P-type rubber strip (5), and the arc end of the P-type rubber strip (5) abuts against the surface of the bottom shaft (2); the supporting square steel (7) is fixedly connected to the inner side of the bottom water-stop support (6), and the arc end of the P-type rubber strip (5) is supported on the supporting square steel (7); The hydraulic locking assembly is installed in two hoist chambers; the hydraulic locking assembly comprises a pair of crank arms (9) and a pair of locking shafts (10); each crank arm (9) is fixedly connected to a locking plate (11), and each locking plate (11) is provided with a plurality of locking holes (12); one end of each locking shaft (10) is connected to a hydraulic cylinder, and each hydraulic cylinder is installed on the inner wall of the corresponding hoist chamber; The two ends of the bottom shaft (2) extend into the interior of the two gate hoist chambers respectively, and the two end shaft sections of the bottom shaft (2) that penetrate the walls of the gate hoist chambers are sleeved with wall-penetrating pipes (13).

2. A bottom shaft driven flap gate according to claim 1, characterized in that: Each hydraulic opening and closing assembly comprises a hydraulic telescopic rod (14) and a bearing seat (15).

3. A bottom shaft driven flap gate according to claim 2, characterized in that: One end of each crank arm (9) is fixedly connected to the movable end of the corresponding hydraulic telescopic rod (14), and the other end of each crank arm (9) is fixedly connected to the end of the bottom shaft (2).

4. The bottom shaft driven flap gate according to claim 1, characterized in that: There are two gate chamber hinge seats (4), which are respectively located in two gate hoist chambers.

5. The bottom shaft driven flap gate according to claim 1, characterized in that: A bottom shaft retaining ring (16) is provided between the pipe opening of each through-wall pipe (13) and the bottom shaft (2); an annular gland (17) is fixedly connected to one end of each through-wall pipe (13) away from the door leaf (1); and a rubber water stop ring (18) is sandwiched between each annular gland (17) and the corresponding bottom shaft retaining ring (16).

6. The bottom shaft driven flap gate according to claim 1, characterized in that: The plurality of locking holes (12) are all elliptical holes.

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