阅读说明：本技术 一种压启式平压阀装置 (Pressure open type flat pressure valve device ) 是由 汪碧飞 黄文� 陈智海 李月伟 李克华 胡剑杰 孔剑 王可 王启行 齐文强 于 2019-11-06 设计创作，主要内容包括：本发明提供一种压启式平压阀装置,包括设于叠梁检修门底节的平压阀、与平压阀相连的连杆、一端与连杆铰接的杠杆、与杠杆另一端铰接且垂直设置的底节闸门压杆、与底节闸门压杆接触的组合压杆以及限位装置,所述组合压杆包括顶节闸门压杆以及中间节闸门压杆,杠杆可绕支架转动,顶节闸门压杆受到抓梁压迫后垂直向下运动,带动中间节闸门压杆及底节闸门压杆垂直向下运动,所述限位装置用于限定连杆、顶节闸门压杆、中间节闸门压杆垂直向下的行程在平压阀的设计开度范围内。本发明可有效解决现有在顶节闸门上设置平压阀充水平压时,由于叠梁检修门的挡水水位下降较大带来的无法实现充水平压的问题。(The invention provides a pressure-opening type flat pressure valve device which comprises a flat pressure valve arranged at a bottom section of a stoplog access door, a connecting rod connected with the flat pressure valve, a lever with one end hinged with the connecting rod, a bottom section gate pressure rod hinged with the other end of the lever and vertically arranged, a combined pressure rod contacted with the bottom section gate pressure rod and a limiting device, wherein the combined pressure rod comprises a top section gate pressure rod and a middle section gate pressure rod, the lever can rotate around a support, the top section gate pressure rod vertically moves downwards after being pressed by a grabbing beam to drive the middle section gate pressure rod and the bottom section gate pressure rod to vertically move downwards, and the limiting device is used for limiting the vertically downward stroke of the connecting rod, the top section gate pressure rod and the middle section gate pressure rod within the designed opening range of the flat pressure valve. The invention can effectively solve the problem that the water filling and level pressure can not be realized due to the large reduction of the water retaining level of the stoplog access door when the level pressure valve is arranged on the top section gate for filling water and level pressure.)

1. The utility model provides a pressure open formula flat pressure valve device which characterized in that: comprises a flat pressure valve (1) arranged at the bottom section of the stoplog access door, a connecting rod (3) connected with the flat pressure valve (1), a lever (4) with one end hinged with the connecting rod (3), a bottom section gate pressure lever (6) hinged with the other end of the lever (4) and vertically arranged, a combined pressure lever (10) contacted with the bottom section gate pressure lever (6) and a limiting device, the combined pressure lever (10) comprises a top section gate pressure lever (10a) and a middle section gate pressure lever (10b), the lever (4) can rotate around the support (5), the top section gate pressure lever (10a) moves vertically downwards after being pressed by the grabbing beam to drive the middle section gate pressure lever (10b) and the bottom section gate pressure lever (6) to move vertically downwards, the limiting device is used for limiting the vertical downward stroke of the connecting rod (3), the top section gate pressure rod (10a) and the middle section gate pressure rod (10b) within the designed opening range of the flat pressure valve (1).

2. The pressure-opening flat valve device according to claim 1, wherein: the top section gate pressing rod (10a) presses the middle section gate pressing rod (10b) to vertically move downwards after being pressed to vertically move downwards, and when the vertical downward movement is transmitted to the bottom section gate pressing rod (6), the lever (4) rotates clockwise around the support (5) under the action of the bottom section gate pressing rod (6), so that the connecting rod (3) is driven to vertically move upwards, and the flat pressure valve (1) is opened to fill the horizontal pressure.

3. The pressure-opening flat valve device according to claim 1, wherein: set up vertical slot (31) in connecting rod (3), top section gate depression bar (10a) and middle section gate depression bar (10b), stop device is including supporting with limiting plate (7), axle (8), spring (9), two support with limiting plate (7) welding on the gate web, flat pressure valve (1) is located near connecting rod (3) two support and between limiting plate (7), axle (8) pass vertical slot (31) of seting up in the middle of connecting rod (3), and both ends are fixed on supporting with limiting plate (7), install two spring (9) in vertical slot (31), a spring (9) is fixed between roof and axle (8) of vertical slot (31), another spring (9) is fixed between diapire and axle (8) of vertical slot (31), connecting rod (3) and combination depression bar (10) accessible vertical slot (31) do certain distance's vertical motion from top to bottom, the spring (9) can enable the connecting rod (3), the combined pressure rod (10) and the flat pressure valve (1) to recover to the initial position after the applied external force is cancelled.

4. The pressure-opening flat valve device according to claim 1, wherein: the hydraulic flat pressure valve is characterized by further comprising two flat pressure valve limiting plates (2) which are symmetrically arranged along the circumference of the flat pressure valve (1) and used for restraining the flat pressure valve (1) to move along the direction of vertical water flow.

5. The pressure-opening flat valve device according to claim 1, wherein: slotted holes are formed in the two ends of the lever (4), one end of the connecting rod (3) is connected with the flat pressure valve (1), the other end of the connecting rod is provided with a round hole (32), one end of the bottom section gate pressure rod (6) is provided with a round hole, the round hole (32) in the connecting rod (3), the round hole in the bottom section gate pressure rod (6) and the slotted hole of the lever (4) are connected through a pin shaft, and when the lever (4) rotates around the support (5), the pin shaft can slide along the slotted hole.

6. The pressure-opening flat valve device according to claim 1, wherein: each section of gate web plate (12) is provided with a round hole, and a gap is reserved between the round hole and the bottom section gate pressure lever (6) and the combined pressure lever (10) to restrict the plane motion of the bottom section gate pressure lever (6) and the combined pressure lever (10), so that the bottom section gate pressure lever (6) and the combined pressure lever (10) can only vertically move.

Technical Field

The invention relates to the field of hydraulic and hydroelectric engineering, in particular to a pressure-opening type flat pressure valve device which is mainly suitable for filling and flat pressure of gates such as various access doors, accident doors and the like.

Background

In hydraulic and hydroelectric engineering, an access door is arranged in front of a working door or an accident door, and when the working door body, a door groove and surrounding runners need to be overhauled, the lower gate of the access door is closed to stop water. The access door is usually still water opened and closed, and the back is accomplished in the maintenance of the door body, gate slot and runner, closes the floodgate under the working door, utilizes the flat pressure valve on the access door to fill the flat pressure with the space between working door and access door, and the flat pressure finishes the back, puts forward the access door drill way again, moves the working door under the water state at last, and the runner resumes normal state.

The access door generally adopts two kinds of modes concora crush, one kind is that set up the concora crush valve on the festival gate of top and fill the level pressure, and another kind is that the gate is opened to local little aperture, adopts the internode to fill the level pressure, and the internode is filled because there is the door top to cross the water and arouse that the gate vibrates and produce adverse effect such as erodeing to the pipeline, and consequently the concora crush valve is filled water and is utilized more in the engineering.

When the manger plate water level is higher, the access door adopts the stoplog door more reasonable, so-called stoplog door is by multisection gate stack manger plate together, do not establish connecting device between festival and the festival, by grabbing the roof beam and dividing the festival to lift by the lift gate, among the present engineering design, the concora crush valve sets up the top festival at the stoplog access door, when opening the door, upwards pull open the concora crush valve through grabbing the roof beam and fill water concora crush, when the manger plate water level of stoplog access door changes for a short time, the method is feasible. However, in some projects, because the project maintenance time is long, the water level of the water retaining of the stop log access door is greatly reduced, the flat pressure valve on the top section gate is exposed out of the water surface, and the water can not be filled for flat pressure, therefore, the flat pressure valve is arranged on the bottom section of the stop log access door, the flat pressure valve can be ensured to normally work under various water levels, so that a new problem is generated, how to open the flat pressure valve of the bottom section, and no suitable scheme can be adopted for solving the problem at present.

Disclosure of Invention

The invention aims to solve the technical problem that a pressure-opening type flat pressure valve device is arranged on a stoplog access door, and the flat pressure valve is pressed open by utilizing the self weight of a grabbing beam to carry out horizontal pressure filling.

The invention adopts the following technical scheme for solving the technical problems:

the utility model provides a pressure open formula flat pressure valve device, including the flat pressure valve of locating stoplog access door bottom section, the connecting rod that links to each other with the flat pressure valve, one end and connecting rod articulated lever, articulated and perpendicular bottom section gate depression bar that sets up with the lever other end, with the combination depression bar and the stop device of bottom section gate depression bar contact, the combination depression bar includes top section gate depression bar and middle section gate depression bar, and the lever can rotate around the support, and top section gate depression bar receives perpendicular downstream after grabbing the roof beam oppression, drives middle section gate depression bar and the perpendicular downstream of bottom section gate depression bar, stop device is used for injecing the design aperture within range of connecting rod, top section gate depression bar, the perpendicular downstream of middle section gate depression bar at the flat pressure valve.

Furthermore, the top section gate pressure bar presses the middle section gate pressure bar to move vertically downwards after being pressed, and when the vertical downward movement is transmitted to the bottom section gate pressure bar, the lever rotates clockwise around the support under the action of the bottom section gate pressure bar, so that the connecting rod is driven to move vertically upwards, and the flat pressure valve is opened to fill the horizontal pressure.

Further, set up perpendicular groove in connecting rod, top festival gate depression bar and the middle festival gate depression bar, stop device is including supporting and limiting plate, axle, spring, two support and limiting plate welding on the gate web, the concora crush valve is located between two near supports and the limiting plate of connecting rod, the axle passes the perpendicular groove of seting up in the middle of the connecting rod, and both ends are fixed on supporting and limiting plate, two springs of perpendicular inslot installation, a spring is fixed between the roof and the axle of erecting the groove, another spring is fixed between diapire and the axle of erecting the groove, the connecting rod makes the up-and-down vertical motion of certain distance with the perpendicular groove of combination depression bar accessible, the spring enables the connecting rod, the combination depression bar, the concora crush valve resumes initial position after the external force of exerting withdraws.

Further, still include two flat pressure valve limiting plates along flat pressure valve circumference symmetrical arrangement for retrain the flat pressure valve and follow the motion of perpendicular rivers direction.

Furthermore, slotted holes are formed in the two ends of the lever, one end of the connecting rod is connected with the flat pressure valve, the other end of the connecting rod is provided with a round hole, one end of the bottom section gate pressure rod is provided with a round hole, the round hole in the connecting rod and the round hole in the bottom section gate pressure rod are connected with the slotted holes of the lever through a pin shaft, and the pin shaft can slide along the slotted holes when the lever rotates around the support.

Furthermore, each section of gate web plate is provided with a round hole, and gaps are reserved among the round holes, the bottom section gate pressure bar and the combined pressure bar so as to restrict the plane motion of the bottom section gate pressure bar and the combined pressure bar, so that the bottom section gate pressure bar and the combined pressure bar can only vertically move.

The invention has the following beneficial effects:

the flat pressure valve is arranged at the bottom section of the stoplog access door, and the lever type starting device, namely the connecting rod connected with the flat pressure valve, the lever hinged with the connecting rod, the bottom section gate pressure rod hinged with the lever and the combined pressure rod linked with the bottom section gate pressure rod, is arranged, when the top section gate pressure rod in the combined pressure rod vertically moves downwards under the pressure exerted by the self weight of the grabbing beam, the middle section gate pressure rod is pressed to move vertically downwards from top to bottom, when the vertical downward movement is transmitted to the bottom section gate pressure rod, the lever rotates clockwise around the bracket, so as to drive the connecting rod to move vertically upwards, finally the flat pressure valve is opened to fill the horizontal pressure, after the flat pressure is finished, the grabbing beam lifts the stoplog access door out of the door slot one by one, thereby effectively solving the problem that the horizontal pressure cannot be filled due to the great reduction of the water retaining level of the stoplog access door when the flat pressure valve is arranged on the top section gate, and simple structure, convenient operation.

Drawings

FIG. 1(a) is a side sectional view of a flat pressure valve and a bottom-segment gate of the present invention, and FIG. 1(b) is a front sectional view of a flat pressure valve and a bottom-segment gate of the present invention;

FIG. 2(a) is a side sectional view of the intermediate and top gate of the present invention, and FIG. 2(b) is a front sectional view of the intermediate and top gate of the present invention;

FIG. 3 is an enlarged view of part A in FIG. 1 (a);

FIG. 4 is an enlarged view of a portion B in FIG. 2 (a);

FIG. 5 is a structural diagram illustrating the open state of the flat pressure valve according to the present invention;

FIG. 6(a) is a front view of the connecting rod; FIG. 6(b) is a side view of the connecting rod;

FIG. 7(a) is a front view of the lever; FIG. 7(b) is a side view of the lever;

fig. 8(a) is a front view of the pressure-opening type flat valve device of the present invention, and fig. 8(b) is a side view of the pressure-opening type flat valve device of the present invention.

In the figure: 1-flat pressure valve, 2-flat pressure valve limiting plate, 3-connecting rod, 4-lever, 5-support, 6-bottom gate pressure lever, 7-support and limiting plate, 8-axle, 9-spring, 10-top section, middle section gate pressure lever, 10 a-top section gate pressure lever, 10 b-middle section gate pressure lever, 11-stroke control board, 12-gate web, 31-vertical groove, 32-round hole, 41-slotted hole.

Detailed Description

The technical solution of the present invention is further described in detail with reference to the accompanying drawings, but the scope of the claimed invention is not limited thereto.

Referring to fig. 8(a), fig. 8(b), fig. 1(a), and fig. 1(b), an embodiment of the present invention provides a pressure-open type flat valve device, which includes

The flat pressure valve 1 is arranged at the bottom section of the stoplog access door;

the flat pressure valve limiting plates 2 are symmetrically arranged along the circumference of the flat pressure valve 1 and are used for restricting the flat pressure valve 1 to move along the direction vertical to the water flow;

one end of the connecting rod 3 is connected with the flat pressure valve 1, the other end of the connecting rod is provided with a round hole 32 (shown in fig. 6(a) and 6 (b)), the connecting rod is hinged with one end of the lever 4, the two ends of the lever 4 are provided with long round holes 41 (shown in fig. 7(a) and 7 (b)), the middle of the connecting rod 3 is provided with a vertical groove 31, and the vertical groove 31 is connected with a limiting device through a shaft 8;

as shown in fig. 3, stop device is including supporting and limiting plate 7, axle 8, spring 9, and two supports and the welding of limiting plate 7 on the gate web, flat pressure valve 1 is located two and supports and between the limiting plate 7, and support and limiting plate 7 except can supporting axle 8, still retrain flat pressure valve 1 along the water flow direction motion, support and limiting plate 7 and flat pressure valve limiting plate 2 both retrain the plane motion of flat pressure valve 1 and connecting rod 3 for flat pressure valve 1 and connecting rod 3 can only vertical motion. The shaft 8 penetrates through a vertical groove 31 formed in the middle of the connecting rod 3, two ends of the shaft are fixed to the upper portion of the supporting and limiting plate 7 through bolts, two springs 9 are installed in the vertical groove 31, one spring 9 is fixed between the top wall of the vertical groove 31 and the shaft 8, the other spring 9 is fixed between the bottom wall of the vertical groove 31 and the shaft 8, the connecting rod 3 can vertically move up and down at a certain distance through the vertical groove 31, and the springs 9 enable the connecting rod 3, the flat pressure valve 1 and other devices to recover to an initial position (when the initial position is reached, the flat pressure valve 1 is in a closed state) after the applied external force;

one end of the lever 4 is hinged with the connecting rod 3, the other end of the lever 4 is hinged with the pressure lever 6, the lever 4 can rotate around the support 5 (for example, the lever is connected through a pin shaft), and the support 5 is fixed on a gate web 12; one end of the bottom section gate pressure lever 6 is provided with a round hole and is hinged with the lever 4;

the combined pressure lever 10 comprises a top section gate pressure lever 10a and middle section gate pressure levers 10b, the number of the middle section gate pressure levers 10b can be set according to requirements, the top section gate pressure lever 10a, the middle section gate pressure lever 10b and the bottom section gate pressure lever 6 are in contact with each other, and vertical projections of the top section gate pressure levers, the middle section gate pressure levers and the bottom section gate pressure levers are overlapped. A vertical groove 31 is formed in the combined pressure lever 10 (a top section gate pressure lever 10a and a middle section gate pressure lever 10b), the combined pressure lever 10 is also provided with the limiting device, the principle of the limiting device is consistent with that of the connecting rod 3, and a spring 9 in the limiting device can enable the combined pressure lever 10 to recover to the initial position after the applied external force is cancelled;

a pressure lever stroke control plate 11 is arranged on each section of gate pressure lever (a bottom section gate pressure lever 6, a top section gate pressure lever 10a and a middle section gate pressure lever 10b) (as shown in fig. 4), the stroke is determined by the opening degree of the flat pressure valve 1, and the opening degree of the flat pressure valve 1 is ensured to be consistent with a designed value when the gate pressure levers (6, 10) vertically move downwards;

each section of the gate web plate 12 is provided with a round hole, a small gap is reserved between each round hole and a pressing rod (the bottom section of the gate pressing rod 6 and the combined pressing rod 10), and the round holes restrict the plane motion of the pressing rods, so that the pressing rods (6 and 10) can only move vertically.

The two ends of the lever 4 are provided with long round holes 41, the ends of the connecting rod 3 and the bottom section gate pressure lever 6 connected with the lever 4 are provided with round holes, the round holes in the connecting rod 3 and the bottom section gate pressure lever 6 are connected with the long round holes 41 of the lever 4 through pin shafts, and when the lever 4 rotates around the support 5, the pin shafts can slide along the long round holes 41, so that the connecting rod 3 and the bottom section gate pressure lever 6 can only do vertical motion.

The working principle of the flat pressure valve device can be completely reflected in the flat pressure door opening and closing and water retaining processes of the stoplog access door. Thus, embodiments of the present invention are described in two processes, a flat press door opening process and a door closing water retention process.

1. Flat pressing door opening process

When the stoplog access door is used for retaining water, the flat pressure valve 1 is in a closed state, water behind the access door is drained, a working door body, a door groove and a flow channel behind the stoplog access door can be overhauled, after the overhaul is finished, in order to ensure that the stoplog access door is opened and closed still, the lower gate closes the working door behind the stoplog access door, at the moment, the stoplog access door and the working door are in a waterless state, the flat pressure valve 1 is required to be opened to fill water and flat pressure, then the grabbing beam is hung into the door groove, the grabbing beam slides to the top of the stoplog access door along the door groove, the grabbing beam is automatically and repeatedly applied to a pressure rod 10a of a top section gate, a pressure rod 10a of the top section gate vertically moves downwards to press a pressure rod of a lower section gate to vertically move downwards, the pressure rod moves vertically downwards from top to bottom, when the vertical downwards movement is transmitted to a pressure rod 6 of a bottom section gate (as shown in figure 5), the lever 4 rotates clockwise around a bracket 5 under the, and finally, opening a flat pressure valve 1 to fill water and flat pressure, and after the flat pressure is finished, grabbing the beams to lift the stop log access doors out of the door slots one by one.

In the process of grabbing the beam to carry out the gate in sections, when grabbing the beam to be connected with the gate, but not lifting the gate, grabbing the beam and can oppress the depression bar 10 and move vertically downwards with the bottom section gate depression bar 6, the flat pressure valve 1 is opened, when grabbing the beam to lift the gate, when the gate with its lower part is thrown off, the flat pressure valve 1 is closed, because the upper and lower reaches are in the flat pressure state, the flat pressure valve 1 is opened and closed and does not influence the flat pressure state.

2. Water stopping process for closing door

When the lower gate of the stoplog access door is closed, the upstream and downstream of the gate are in a flat pressing state, the bottom section gate, the middle section and the top section gate are sequentially hung into the gate slot through the grabbing beam, the grabbing beam can press the pressing rod 10 and the pressing rod 6 to vertically move downwards in the process of hoisting the gate, the flat pressing valve 1 is opened, a section of gate is installed, the grabbing beam is removed, the pressing rod 10 and the pressing rod 6 automatically recover to the initial position under the action of the spring 9, and the flat pressing valve 1 is closed. Analogizing from this, waiting that all segmental gates of stoplog access door are installed, grabbing the roof beam and breaking away from with the top segmental gate, depression bar 10 and depression bar 6 restore initial position automatically under the effect of spring 9, flat pressure valve 1 self-closing cuts off the upstream and downstream water, and the stoplog access door is in normal operating condition, can open subsequent maintenance work.

The embodiments of the present invention have been described in detail, but the present invention is not limited to the details of the above embodiments, and the technical solutions of the present invention can be easily changed or substituted within the technical concept of the present invention, and all of them should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.