CN210658264U

CN210658264U - Hydraulic gate structure capable of adjusting lower suction force

Info

Publication number: CN210658264U
Application number: CN201920366987.7U
Authority: CN
Inventors: 练继建; 盛传明; 刘昉; 马斌
Original assignee: Frontier Technology Research Institute of Tianjin University Co Ltd
Current assignee: Frontier Technology Research Institute of Tianjin University Co Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-06-02
Anticipated expiration: 2029-03-22

Abstract

The utility model discloses a hydraulic gate structure of suction under adjustable is applied to the hydraulic engineering field. The flat plate gate comprises a cover plate inhaul cable, a water permeable hole, a cover plate, a guide rail, a support ring, an opening, a bottom edge, a longitudinal beam and a cross beam, wherein the flat plate gate is composed of a series of cross beams and longitudinal beams, the opening is formed in the cross beam at the bottommost part, and the support ring is installed on the opening and used for supporting the cover plate and sealing the opening. The liftable cover plate is arranged above the opening, the cover plate is suspended by the cover plate inhaul cable, smooth guide rails are arranged at four corners of the beam grids of the cross beam, and the cover plate is restrained by the guide rails when falling and accurately covers the opening. The utility model is provided with the holes on the bottom beam of the gate, thus reducing the water weight stress area and preventing the holding force of the gate from being too large in the initial falling period; when the gate is small in opening and cannot be closed, the cover plate on the upper side of the bottom cross beam falls down to cover the opening, the stress area of the water weight is increased, the lower suction force is increased, and the gate is closed.

Description

Hydraulic gate structure capable of adjusting lower suction force

Technical Field

The utility model discloses a hydraulic gate structure of suction under adjustable is applied to the hydraulic engineering field.

Background

In hydraulic engineering, along with the construction of a dam of a high reservoir, the working water head of a flat gate is gradually increased, such as a mosaic grade 1 hydropower station working water head 130m, a bay hydropower station working water head 160m, a Raschig hydropower station working water head 165m and the like. After the flat gate is soaked in water for a period of time, the sliding block, the side wheel, the water seal and the like can be rusted and abraded in different degrees, so that the friction coefficient is obviously increased when the flat gate is designed. When the flat gate is closed in running water, the holding force of the gate at the initial falling stage is often too large and easily exceeds the capacity of a hoist, so that the hoist is damaged; when the opening of the gate is small, the water flow thrust is large, and if the door closing force of the gate cannot offset the friction force, the phenomena of door closing blocking and incapability of closing can occur, so that great potential safety hazards are brought. The traditional method is to increase the counterweight of the gate to overcome the friction force, the space of the flat gate is limited, the counterweight which can be used for increasing is limited, and after the counterweight of the gate is increased, the holding force of the gate at the initial falling stage is larger, so that the damage to a hoist is easier.

Disclosure of Invention

In view of the above, the utility model discloses a hydraulic gate structure capable of adjusting the downward suction force, wherein the bottom cross beam of the gate is perforated to reduce the water weight stress area, so that the holding force of the gate in the initial falling stage is not too large; the cover plate structure is additionally arranged, when the small opening of the gate cannot be closed, the cover plate on the upper side of the bottom cross beam falls to cover the opening, the stress area of the water weight is increased, the lower suction force is increased, and the gate closing is realized.

The technical scheme of the utility model

The utility model provides a hydraulic gate structure of suction under adjustable, includes the apron cable, permeates water the hole, the apron, the guide rail, the support ring, trompil, bottom edge, longeron and crossbeam, and this plate gate comprises a series of crossbeams and longeron, is equipped with the trompil on the crossbeam of bottommost, sets up the apron of liftable above the trompil, and the apron is suspended in midair by the apron cable, is equipped with smooth guide rail in the four corners department of crossbeam roof beam check, receives the guide rail restraint when the apron whereabouts to the accuracy covers the trompil.

Further, a support ring is mounted on the opening for supporting the cover plate and sealing the opening.

Furthermore, the position of each longitudinal opposite cover plate of each cross beam of the gate is provided with a water permeable hole, and a cover plate inhaul cable connected with the cover plate extends to the top of the gate through the water permeable hole and is connected to a winch on the ground for driving the cover plate to lift.

Furthermore, through holes are formed in the positions, opposite to the guide rails, of the four corners of the cover plate, the hole diameter of each through hole is slightly larger than that of each guide rail, and the guide rails penetrate through the corresponding through holes, so that the cover plate can accurately fall onto the support ring when descending to cover the open holes.

Further, a bottom edge is formed in each of the longitudinal beams of the flat gate extending toward the lower portion of the bottommost cross member.

The utility model discloses an advantage and positive effect:

(1) the bottommost cross beam plate is provided with the hole, and when the flat gate is closed, the gate holding force can be reduced at a larger opening degree.

(2) When the plate gate cannot continuously fall in a small opening degree, the opening is covered by the falling cover plate, the stress area of the bottom beam plate is increased, and the suction force can be increased.

(3) Through the arrangement of the guide rail, the cover plate falls along the guide rail to accurately cover the open hole.

(4) Through setting up rubber support ring, can not damage the crossbeam board when making the apron fall, have the effect of sealing up water simultaneously.

Drawings

FIG. 1 is a schematic view of the structure;

fig. 2 is a cross-sectional view of the interior.

In the figure: 1. a cover plate inhaul cable; 2. water permeable holes; 3. a cover plate; 4. a guide rail; 5. a support ring; 6. opening a hole; 7. a bottom edge; 8. a stringer; 9. a cross member.

Detailed Description

The following description will be made in detail with reference to the accompanying drawings and examples.

Can know by attached figure 1 and attached figure 2, the utility model discloses adjustable suction's hydraulic gate structure down, including apron cable 1, the hole 2 of permeating water, apron 3, guide rail 4, support ring 5, trompil 6, bottom edge 7, longeron 8 and crossbeam 9.

The flat gate is made up of a series of cross beams 9 and longitudinal beams 8. The flat gate is closed by moving water, and the suction force under the gate is larger when the gate is opened to a large degree, so that the capacity of the gate is easily exceeded; and the door closing force is insufficient when the door is opened to a small degree, so that the door closing of the gate is blocked easily. The flat gate is optimized, 4 openings 6 are formed in a cross beam 9 at the bottommost part of the flat gate, a series of liftable cover plates 3 are arranged above the openings 6, and the cover plates 3 are suspended by cover plate pull cables 1. The position longitudinally opposite to the cover plate 3 on each cross beam 9 of the gate is provided with a water permeable hole 2, a cover plate guy cable 1 connected with the cover plate 2 extends to the upper part of the gate through the water permeable hole 2 and is connected to a ground winch, and the cover plate guy cable 1 is pulled by the ground winch to lift the cover plate 3. The cover plate 3 is pulled up to expose the opening 6, the water weight area of the cross beam 9 is reduced due to the arrangement of the opening 6, and the problem that the holding force is overlarge when the gate is closed with a large opening degree is solved; when the cover plate 3 falls down, the cover plate 3 blocks the opening 6, the water weight area of the cross beam 9 is increased, and the problem of insufficient door closing force when the gate is opened in a small degree is solved.

Along the opening 6, a support ring 5 is mounted, the support ring 5 being made of rubber material for supporting and sealing purposes. A cover plate 3 is arranged above the cross beam 9, a cover plate guy cable 1 is used for hanging the cover plate 3 through the water permeable holes 2, and the cover plate 3 is hung below the secondary bottom cross beam 9. In order to enable the cover plate 3 to accurately cover the opening 6, smooth guide rails 4 are fixed at four corners of a beam lattice of the cross beam 9, meanwhile, openings are formed at four corners of the cover plate 3, the hole diameter is slightly larger than the guide rails 4, the cover plate 3 is restrained by the guide rails 4 when falling, and can accurately fall onto the support ring 5 to cover the opening 6.

Before the plate gate is closed, the winch drives the cover plate inhaul cable 1 to ascend, so that the cover plate 3 ascends to the lower end of the secondary bottom cross beam 9, and the opening 6 and the support ring 5 are exposed. The flat gate starts to move to close the door, the flat gate and the cover plate 3 fall simultaneously, and the cover plate 3 is still positioned at the lower end of the secondary bottom cross beam 9 at the moment. When the flat gate falls to a small opening and cannot fall further, the cover plate 3 is put down by the winch and falls onto the support ring 5 to cover the opening 6, so that the stress area of the lowest crossbeam plate is increased, the suction force under the gate is increased, and the gate is continuously closed until the gate is closed.

Claims

1. The utility model provides a hydraulic gate structure of suction under adjustable, characterized by: including apron cable (1), hole (2) of permeating water, apron (3), guide rail (4), support ring (5), trompil (6), bottom edge (7), longeron (8) and crossbeam (9), this plate gate comprises a series of crossbeam (9) and longeron (8), be equipped with trompil (6) on crossbeam (9) of bottommost, set up apron (3) of liftable above trompil (6), apron (3) are suspended in midair by apron cable (1), be equipped with smooth guide rail (4) in crossbeam (9) roof beam check's four corners department, receive guide rail (4) restraint when apron (3) whereabouts, and the accuracy covers trompil (6).

2. A hydraulic gate structure with adjustable downward suction as claimed in claim 1, wherein: and a support ring (5) is arranged on the opening (6) and is used for supporting the cover plate (3) and sealing the opening (6).

3. A hydraulic gate structure with adjustable downward suction as claimed in claim 1, wherein: the position of each crossbeam (9) of gate vertical relative apron (3) all is equipped with hole (2) of permeating water, and the apron cable (1) of connecting cover plate (3) stretches the gate top through hole (2) of permeating water, is connected to the hoist engine on ground for drive apron (3) go up and down.

4. A hydraulic gate structure with adjustable downward suction as claimed in claim 1, 2 or 3, wherein: through holes are formed in the positions, opposite to the guide rails (4), of the four corners of the cover plate (3), the guide rails (4) penetrate through the corresponding through holes, so that the cover plate (3) can accurately fall onto the support ring (5) when descending to cover the open holes (6).

5. A hydraulic gate structure with adjustable downward suction as claimed in claim 1, wherein: a bottom edge (7) is formed by extending each longitudinal beam (8) of the flat-plate gate to the lower part of the bottommost cross beam (9).