CN213867689U

CN213867689U - Lifting fish blocking gate device in front of dam spillway

Info

Publication number: CN213867689U
Application number: CN202022327006.3U
Authority: CN
Inventors: 杨志光; 杨杰君
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-18
Filing date: 2020-10-19
Publication date: 2021-08-03
Anticipated expiration: 2030-10-19
Also published as: CN213952150U

Abstract

The utility model discloses a lifting fish-blocking gate device in front of a dam spillway, which comprises a gate body consisting of steel fish-blocking fences supported by steel beams, wherein the gate body is arranged on a basic platform at the upstream of an inlet of the spillway, and the basic platform supported by a stand column consists of steel fence planes laid on a beam body; the gate body is connected with the inlet of the spillway through a fixed water passing fence; the steel fence plane and the water passing fence prevent fish and wave debris from entering the spillway; the bottom of gate body articulates installs on the steel fence plane, and the hoist is connected on the top of gate body, and the hoist drives the gate body and winds the pin joint luffing motion of bottom. The water flow channel is wide, the fish blocking gate and the water flow nearby are not turbulent any more, and the fish can swim back. Can not block and obstruct flood discharge. The spillway fish blocking gate constructed in the upstream water area of the spillway of the reservoir, lake and canal dam can not affect the spillway and the dam safety.

Description

Lifting fish blocking gate device in front of dam spillway

Technical Field

The utility model relates to a fish blocking gate applied to spillways in water areas such as rivers, reservoirs, canals and lakes.

Background

In spring every year, as long as flood water or mountain torrents burst, many dams built in rivers, canals, lakes or reservoirs are required to flood. If the great flood occurs in the reservoir of Xinanjiang (also called Qiandao lake scenic tourist area) this year, the loss of big and small fish and fry is serious during the flood overflow and fish running, if the fish needs to be cultivated and restored, the fry needs to be put again, and the original level can be restored by the cultivation which takes several years, so that the cultivation benefit of the water area is greatly reduced.

In addition, at present, the pollution of water areas in many places is serious, tap water of water coasts does not reach the standard, and water resources are deficient. If blue-green algae outbreaks in Tai lake and nest lake year, the most direct, environment-friendly and effective treatment means at present can only be used for fishing the blue-green algae, 81 fixed fishing points are arranged in a tin-free market, 56 professional fishing teams are established, and nearly 1000 professional fishing personnel are needed. But the blue algae fishing is a means for treating the symptoms and not the root causes. If a certain proportion of silver carps and bighead carps can be scientifically released to clean plankton in water by utilizing the water areas, the blue algae outbreak caused by water eutrophication can be avoided, the problem is fundamentally solved, the purpose of protecting water sources is achieved, and the residents on the coasts can use safe and reassuring tap water. Meanwhile, the high-quality and high-yield edible fish like the thousand island lake or the Chaihu lake can be cultivated in the water areas, the living quality of people is improved, economy is developed, the treatment cost is saved, and meanwhile, considerable economic benefits are created. However, fish running caused by flood overflow causes great economic loss to fish culture and blue algae are often erupted in the water areas to seriously pollute drinking water sources.

Patent document No. CN110578315A discloses "a movable spillway fish blocking gate". The gate body is arranged at the entrance of the spillway of the reservoir dam or in the spillway, and is composed of steel fish blocking fences supported by steel beams, and the width of the gate body is arranged corresponding to the width of the spillway; the bottom of gate body articulates and installs the bottom surface at spillway, and the hoist is connected on the top of gate body, and the hoist drives the gate body and winds bottom pin joint luffing motion. The steel fish blocking gate supported by the steel beams has enough structural strength, not only can complete fish blocking work without damage, but also can convey garbage to a downstream ramp by using water flow; the inclined posture can be conveniently adjusted by the crane to ensure safety; the stress of the working bridge does not have half-point influence on the safety of the reservoir dam; the fish blocking gate is convenient to manage, and the service life of the fish blocking gate can be greatly prolonged. As an improvement of the "movable spillway fish-blocking gate" described in this document, the present invention incorporates the above patent documents in its entirety.

However, as the fish blocking gate is arranged at the inlet of the spillway or in the spillway of the reservoir dam, the water flow in the spillway is turbulent due to the effect of the spillway on restricting the water flow during flood discharge, and a large amount of fish are sucked and pressed on the fish blocking gate by the water flow and cannot swim back to the reservoir; the fish blocking gate is blocked by the fish due to untimely fishing, so that flood discharge is influenced; if the fish blocking gate is opened, fish running is caused, and the loss is large.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects, the utility model aims to solve the technical problem that a fish blocking gate is provided, which effectively prevents the situation that the fish blocking gate is blocked by fish from occurring. In order to solve the technical problem, the utility model adopts the technical scheme that the elevating fish-blocking gate device in front of the spillway of the dam comprises a gate body consisting of steel fish-blocking fences supported by steel beams, and is characterized in that the gate body is arranged on a basic platform at the upstream of the inlet of the spillway, and the basic platform is supported by a stand column; the foundation platform consists of a steel fence plane laid on the beam body; the beam body adopts a steel beam structure or a reinforced concrete beam structure, and the plane of the steel fence is connected with the spillway; the height of the steel fence plane is not higher than the dead water level of the spillway; the gate body is connected with the inlet of the spillway through a fixed water passing fence; the steel fence plane and the water passing fence prevent fish and wave debris from entering the spillway; the bottom of gate body articulates installs on the steel fence plane, and the hoist is connected on the top of gate body, and the hoist drives the gate body and winds the pin joint luffing motion of bottom.

The beneficial effects of the utility model reside in that, this application has increased the steel fence plane that can cross the water and has crossed the water rail in spillway entry upper reaches the place ahead, can cross the water through the beneath and side, and the rivers passageway is wider, and the rivers that block fish gate and near are no longer torrent urgent, and the fish can the migratory. Can not block and obstruct flood discharge. The spillway fish blocking gate constructed in the upstream water area of the spillway of the reservoir, lake and canal dam can not affect the spillway and the dam safety.

When the dam overflows, because the water flow on the dam is slow flow, the fish can swim back as long as the fish leaves the water flow suction range of the spillway, and the fish blocking gate is only arranged at the position where the fish can swim back. It will not be blocked by fish.

Preferably, the longitudinal fences and the transverse fences of the steel fish blocking fence are arranged in front and at the back along the water flow direction, and a longitudinal space is reserved in a crack between the longitudinal fences along the water flow direction. Is convenient for water flow and garbage discharge.

Preferably, the left side, the right side and the front side of the gate body are provided with auxiliary fences capable of passing water, and the auxiliary fences are used for plugging fish and waste entering holes.

Preferably, a chip placing door is arranged at a position, close to a water inlet of the spillway, of the foundation platform and connected with a chip placing crane. When a lot of garbage (wave chips) is accumulated below the base platform, the chip placing crane is started, the chip placing door is opened in a short time, the chip placing crane is started after the garbage flows out, and the chip placing door is closed.

Preferably, the fish blocking gate is formed by combining multiple parallel gate bodies. To seal off wider spillways.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is further described in detail with reference to the accompanying drawings and the detailed description.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a partially enlarged schematic view of the steel fish blocking fence;

FIG. 3 is a schematic structural view of example 2;

fig. 4 is a schematic structural view of embodiment 3.

Detailed Description

Example 1: referring to fig. 1, 2, reflect the utility model discloses a concrete structure is applicable to the fish gate device is blocked in raising before the spillway of dam, the steel that supports including the girder steel blocks gate body 1 that the fish fence constitutes, gate body 1 is installed on the basic platform of the upper reaches of 3 entrys of spillway on dam 2, basic platform is supported by stand 4, can adopt the reinforced concrete stand with the increase fastness, and dam retaining elevation tens meters or last hectometer can all install the fish gate. The foundation platform consists of a steel fence plane 6 laid on the beam body 5; the beam body 5 adopts a steel beam structure or a reinforced concrete beam structure, and the steel fence plane 6 is connected with the spillway 3; the height of the steel fence plane 6 is not higher than the dead water level of the spillway 3; the gate body 1 is connected with the inlet of the spillway 3 through a fixed water passing fence 8;

the steel fence plane 6 and the water passing fence 8 prevent fish and wave debris from entering the spillway 3; the bottom of gate body 1 is articulated to be installed on steel fence plane 6, and hoist 10 is connected on the top of gate body 1, and hoist 10 drives gate body 1 and winds bottom pin joint luffing motion.

The longitudinal fence 101 and the transverse fence 102 of the steel fish blocking fence are arranged in front of and behind in the water flow direction, namely the longitudinal fence 101 is positioned on the front side of upstream incoming water. The gap between the longitudinal fences 101 has a deep space in the direction of the water flow. The garbage in the space is not easy to enter, and water flows conveniently; the garbage is pushed by water along the surface of the longitudinal fence 101 to turn over the top end of the gate to enter the downstream, and is not easily blocked by the transverse fence 102.

The width and depth between the water fences 8 is not less than the width and depth of the spillway 3 so that the flood is not affected. The water dam 8 may be wider than the spillway entrance, primarily for the purpose that fish can leave the spillway water flow suction range, and fish will not be adsorbed on the water dam by the water flow, and will swim back.

Gate body 1 is installed in the upper reaches the place ahead of 3 entrances of spillway, and gate body 1 supports fixed water rail 8 through the girder steel and is connected between 3 entrances of spillway, crosses water rail 8 and blocks fish and unrestrained bits entering spillway 3, but water can get into spillway 3 through crossing water rail 8.

In this embodiment, the gate body 1 is arranged in front of the water passing fence 8, and in other embodiments, the gate body 1 may also be arranged on the left or right water passing fence 8.

The bottom end of the gate body 1 is hinged and mounted on the base platform through a rotating shaft 11, a steel beam at the top end of the gate body 1 is connected with a steel cable of a crane 10 (a hoist, a winch and the like), the crane 10 drives the gate body 1 to swing up and down around the rotating shaft 11 at the bottom end, and the swing angle is 0-45 degrees; two cranes 10 are mounted on a working bridge 12 that spans the left and right side water passing fences 8.

The gate body is in a working state when swinging to a high point position of 45 degrees, the gate body traverses in the gap in an inclined posture, and the steel fish blocking fence on the inclined surface intercepts upstream fish and garbage (wave debris) coming along with flood and cannot pass through. Garbage surges along the inclined surface to the top end of the gate along with water flow, the inclination of the gate can be freely finely adjusted, and manual intervention such as pushing and raking can be assisted, so that the garbage overturns the top end of the gate of the inclined surface and is discharged to the downstream from the outlet of the spillway, the fish blocking gate is effectively prevented from being blocked by the garbage floating on the water and sinking in the water, and no resistance is caused to spillway; the intercepted fish is frightened and can swim back to the reservoir, the fish which does not swim back can be captured because of the influence of the flow rate of water, the adult fish is harvested, and the fry is sent back to the net cage of the reservoir for temporary stocking. The working bridge can also be used as a safety rope mounting base point for operators, so that the operators can conveniently stand on the gate body to catch fish and push garbage to downstream and the like. The working bridge can be of a double-layer structure, the crane is arranged on the top layer, and the fish can be loaded and unloaded conveniently through the load-carrying truck on the bottom layer.

When flood running is possibly hindered, the gate body is swung to the low position of 0 degree (namely, the gate body is horizontally arranged parallel to the bottom surface) by the crane, and then normal flood overflowing can be realized. When the gate body swings to 0 degree, the position of the gate body is lower than the dead water level of the spillway. To avoid any hindrance to the flood.

The utility model discloses in, increased in 3 entry upper reaches the place ahead of spillway and can cross the water fence 8 and the steel fence plane 6 of water, the rivers passageway is wider, and the rivers of gate body 1 and near are no longer torrent urgent, and the fish can the trip before the gate, can not block up on gate body 1, can not hinder the flood.

In this example, the water passing fence 8 is not provided around the part of the gate body 1 extending outside the water passing fence 8, so that the gate body 1 has a hole around it through which fish can pass. For this purpose, the left, right and front sides of the gate body 1 are provided with auxiliary fences 9 for plugging leaks, and the auxiliary fences 9 block fish and wave debris from entering, but water can pass through the auxiliary fences 9. The outer side of the auxiliary fence 9 is a slope conforming to the gate 1, and the inner side of the auxiliary fence 6 is a vertical surface convenient for the gate 1 to swing. The fish and the garbage are turned over to the upper surface of the gate body 1 in an inclined posture along the slope surface at the outer side, and the fish blocking gate can work according to the flow. The auxiliary fence 9 is preferably formed by steel fish blocking fences supported by steel beams, and the longitudinal fence and the transverse fence of the steel fish blocking fence are arranged in the front and back direction along the water flow direction.

In this embodiment, the steel fence plane 6 is set below the dead water level of the spillway 3, and the reinforced concrete support pier 13 is set below the gate body 1, so that the hinge point mounting base of the gate body 1 and the bottom surface of the spillway 3 or the dead water level of the spillway are kept horizontal, thereby reducing the spillway pressure and the manufacturing cost of the fish-blocking gate and facilitating the installation of the gate. The water flow of the reservoir spills can pass under the gate body 1. The reinforced concrete support piers 13 and the lower part of the gate body 1 are also covered by the auxiliary fence 9 so as to plug the loophole through which fish can pass.

Under the condition that the height of the steel fence plane 6 is horizontal with the dead water level of the spillway 3, the reinforced concrete support pier 13 does not need to be arranged, and the hinged point of the gate body 1 is directly arranged on the steel fence plane 6.

Example 2: referring to fig. 3, the difference from embodiment 1 is that a scrap placing door 203 is provided at a position of the base platform 201 near the water inlet of the spillway 202, and the scrap placing door 203 is connected with a scrap placing crane 204.

When a lot of garbage is accumulated below the base platform 201, the garbage placing crane 204 is started to lift the downstream end of the garbage placing door 203, and the garbage placing door 203 is opened for a short time to allow the garbage to flow out to the downstream. And then the debris release door 203 is closed again. The chip discharging door 203 may not be put down due to large water pressure, and the traction direction of the crane cable can be changed by the guide pulley arranged below the chip discharging door 203, so that the chip discharging door is pulled downwards to be closed.

The scrap placing crane 204 can be arranged on the same working bridge as the crane of the gate body.

Example 3: referring to fig. 4, the difference from embodiment 1 is that the spillway 301 is wider and the fish gate is composed of triple-juxtaposed gate bodies 302.

The foregoing embodiments are merely for clarity of explanation, and are not to be construed as limiting the present invention. The utility model discloses have known multiple substitution or warp in this technical field, do not deviating from the utility model discloses under the prerequisite of essence meaning, all fall into the utility model discloses a protection scope.

Claims

1. A lifting fish-blocking gate device in front of a dam spillway comprises a gate body consisting of steel fish-blocking fences supported by steel beams, and is characterized in that the gate body is arranged on a foundation platform at the upstream of an inlet of the spillway, and the foundation platform is supported by a stand column; the foundation platform consists of a steel fence plane laid on the beam body; the beam body adopts a steel beam structure or a reinforced concrete beam structure, and the plane of the steel fence is connected with the spillway; the height of the steel fence plane is not higher than the dead water level of the spillway; the gate body is connected with the inlet of the spillway through a fixed water passing fence; the steel fence plane and the water passing fence prevent fish and wave debris from entering the spillway; the bottom of gate body articulates installs on the steel fence plane, and the hoist is connected on the top of gate body, and the hoist drives the gate body and winds the pin joint luffing motion of bottom.

2. An elevated fish barrier gate assembly in front of a dam spillway as claimed in claim 1 wherein the longitudinal and transverse fences of the steel fish barrier are arranged one behind the other in the direction of water flow and the gap between the longitudinal fences has a depth in the direction of water flow.

3. The lifting fish-blocking gate device in front of the dam spillway as claimed in claim 1 or 2, wherein auxiliary fences capable of passing water are arranged on the left side, the right side and the front side of the gate body, and the auxiliary fences block the loopholes into which fish and wave debris enter.

4. An elevated fish gate apparatus in front of a dam spillway as claimed in claim 1 or claim 2, wherein the base platform is provided with a debris release door adjacent to the spillway inlet, the debris release door being connected to a debris release crane.

5. An elevated fish gate assembly in front of a dam spillway as claimed in claim 1 or claim 2 wherein the fish gate is formed by a plurality of juxtaposed gate bodies.