CN105274970A - Lift gate device - Google Patents

Lift gate device Download PDF

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Publication number
CN105274970A
CN105274970A CN201410587996.0A CN201410587996A CN105274970A CN 105274970 A CN105274970 A CN 105274970A CN 201410587996 A CN201410587996 A CN 201410587996A CN 105274970 A CN105274970 A CN 105274970A
Authority
CN
China
Prior art keywords
gate
leaf
plate
lock
gate leaf
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410587996.0A
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Chinese (zh)
Inventor
黄富会
黄铉轸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHTECH CO Ltd
Original Assignee
SHTECH CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHTECH CO Ltd filed Critical SHTECH CO Ltd
Publication of CN105274970A publication Critical patent/CN105274970A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Barrages (AREA)

Abstract

The present invention provides a lift gate device with the advantages of minimum consumption of gate frame plate material, portability, reduced cost, capacity of preventing water leakage caused by damage to waterstop, and having a structure meeting the requirements of assembling and disassembling convenience of a gate device. For this reason, the lift gate device comprises: a gate frame plate which has the functions of rise-fall guide and supporting for a gate leaf and consists of a gate intercept plate and left and right back guide plate components, wherein the gate intercept plate has a discharge hole for discharging stored water to the downstream position when the gate leaf is opened, and the left and right back guide plate components are configured at two sides of the upper part of the gate intercept plate in the form of upwards extending in a 11 shape at a certain interval; a waterstop arranged around the discharge hole of the gate intercept plate; left and right side gate slot components which are vertically fixed at the left and right sides of the gate frame plate and made of a steel material; L-shaped lock components arranged at the tops of the left and right side gate slot components for preventing rising of the gate leaf; the gate leaf vertically inserted between the left and right side gate slot components for opening and closing the gate fram plate; and a gate bottom support plate horizontally arranged at the bottoms of the left and right side gate slot components.

Description

Lift lock device
Technical field
The lift lock used when the invention relates to draining, uses material minimized, prevents sealing impaired, and Sum decomposition facility is installed in the combination that structure meets valve system.
Background technology
The ground such as the general dykes and dams at rivers or reservoir, store a certain amount of water to tackle water route and be provided with concrete dyke, for guaranteeing that a certain amount of water storage is applied flexibly for agricultural water or industrial water use, and carrying out suitable draining rainy season to prevent flood, be provided with gate at these dykes and dams places.
This gate has the pivot gate being carried out open-close sluice gate by the mode of rotary gate, and gate is risen to the lift lock of the open gate in top.
Pivot gate needs rotary heavy-duty gate, and particularly when high hydraulic pressure, rotary gate has many difficulties, so be normally placed in the lower water route of the degree of depth, and the higher water route of water level arranges lift lock usually.
This lift lock can with present inventor No. 0459237 patent for example.
Priority patent invention Fig. 1 above-mentioned with present inventor is same as shown in Figure 2, Door frame board (21) bottom of HDPE (high density polyethylene (HDPE)) material has drain hole (G) to be used for discharging water storage, Door frame board (21) both sides have vertically been fixedly installed the stull (24) of steel matter of the side direction gate slot parts (22) of steel matter and side direction gate slot parts (22) upper end horizontally set, thus constitute doorframe (20).Vertically insert at the side direction gate slot parts (22) of doorframe (20) gate flap (30) being provided with switch pair water hole (G), the top of above-mentioned gate flap (30) has vertically fixedly mounted the axle (40) of steel matter.Elasticity gasket sealing (60) larger than drain hole (G) edge, in order to maintain the fire resistance characteristic of Door frame board (21) drain hole (G) edge medial plane, inserts and is arranged in the slot (62) that processes of inner side by above-mentioned doorframe (20).In the reinforcing stull (50) of side direction gate slot parts (22) bottom horizontally set steel matter, with the flowing preventing side direction gate slot parts (22) below from occurring.The rear, front of above-mentioned lock gate leaf (30) is provided with the gate flap plate (72) of two-layer HDPE material, in the middle of two-layer gate flap plate (72), be provided with the reinforcement feature (76) of steel matter, the top component (74) playing the steel matter of sealing function is set on gate flap plate (72) top being provided with reinforcement feature (76).
The gate of above-mentioned structure is made up of two-layer gate flap plate, can resist the hydraulic pressure of high strength.The reinforcement feature that gate flap intralamellar part is arranged plays the effect preventing the flowing of lock gate leaf bias.And reinforcement material to be set to lock gate leaf inside be corroded in atmosphere to prevent reinforcement feature from exposing, thus play and extend the effect in gate life-span.
But, invent its drawing by above-mentioned precedent to form and can confirm, have during the gate of open Door frame board (21) bottom and water storage is discharged to dirty drain hole (G), there is the panel component playing gate guide effect on the top of drain hole (G), and the edge device of outfall (G) prevents the sealing (60) leaked.When switch gate, the panel component (address to Door frame board (21) top) on top contacts with door surfaces, be attached to silt on gate or foreign matter etc. and can cause surface damage, easily wearing and tearing watertight rubber, thus become the reason causing and leak.
And, according to the structure of above-mentioned gate, the stull (24) of steel matter with side direction gate slot parts (22) top horizontally set of the side direction gate slot parts (22) of the vertical fixed steel matter in Door frame board (21) both sides, the stop component effect making lock gate leaf (30) no longer increase is played in this stull (24).Because this stull strides across the overall width horizontally set of lock gate leaf (30), make the weight penalty of structure, use unnecessary material to cause waste, thus increase the expense of valve system.On the other hand, the problems such as inconvenient are also had when the Decomposition and composition of gate is installed.
On the other hand, the gate flap plate (72) that above-mentioned lock gate leaf (30) mounts HDPE material by the front-back of belfry thing is formed, identical with diagram, and the thickness of gate flap plate (72) is overall evenly to be formed, and lower end is the dihedral at right angle.Time lock gate leaf (30) closed condition (decline state), due to hydraulic pressure effect, sealing (60) is extruded thus produces sealing force, in order to open gate lock gate leaf (30) is risen to peak time, the sealing (60) be extruded again plays elasticity and returns to original state.Accordingly, during in order to closed shutter decline lock gate leaf (30), the lower end of back door impeller and sealing (60) disturb mutually, cause sealing (60) earlier damage.
Look-ahead technique file
Patent document---Korean Patent logs in No. 0459237
Summary of the invention
Solve problem
The present invention for the purpose of solving the problem, the lift lock device that this motion provides and the Door frame board of lift lock device, reduction of expenditure while using minimum material to make its lighting, and structure prevent sealing impaired thus prevent from leaking.
Another object of the present invention is that the structure of this lift lock meets the combination installation of valve system and decomposition facility.
Solve the method for problem
For achieving the above object, this lift lock device is made up of following structure: play lock gate leaf and rise decline guiding and supporting role, by the gate catching sheet possessing open lock gate leaf and to be discharged into by water storage dirty drain hole, and the Door frame board that the back side, the left and right guide strip parts that upwards extend with 11 fonts at a certain distance of both sides, above-mentioned gate catching sheet top are formed; The sealing installed around the drain hole of above-mentioned gate catching sheet; About above-mentioned Door frame board, the left and right sides of vertical fixing steel matter is to gate slot parts; Above-mentioned left and right sides to gate slot parts separately top be prevent lock gate leaf rise shape stop component; Above-mentioned left and right sides is to the lock gate leaf inserting the above-mentioned Door frame board of opening and closing arranged vertical between gate slot parts; And above-mentioned left and right sides is to the gate bottom support panel of gate slot component bottom ends horizontally set.
According to a preferred embodiment of the invention, the feature of lift lock device is: the front/rear door impeller that above-mentioned lock gate leaf is installed before the belfry thing intersected to form and structure below by multiple frame parts Horizontal vertical formed.And at least chamfering or rounding process to be carried out in the angle, impeller bottom, back door contacted with top sealing.The cross member of said frame structure is the structure of font, a vertical parts side is made up of flat board, and above-mentioned transverse direction is welded with vertical parts and formed.Before above-mentioned cross member with form screw below with fixing front-back gate flap.The top central authorities of said frame structure are provided with hinge connection portion, and the axle being elevated above-mentioned lock gate leaf can be turned round at hinge connection portion by hinge.
The effect of invention
According to the present invention, the gate flap plate possessing drain hole is arranged at the bottom of Door frame board, and top does not have plate to construct.The both sides, top of lock gate leaf plate have at a certain distance with the left and right backplate gate slot parts that 11 words upwards extend, and minimize, are mingled with into silt or foreign matter between preventing board and plate, thus prevent sealing to be worn with lock gate leaf relative area.Meanwhile, there is space between the guide strip parts of the back side, left and right, not only reduce the use amount of material, serve the effect of weight reduction simultaneously.Replace the reinforcing stull of top horizontally set, be provided with to gate slot parts top at left and right sides font stop component, limits the rising of lock gate leaf, is opened by left and right sides to the spatial vertical between gate slot parts simultaneously, and the convenience of Sum decomposition is installed in the combination considerably increasing lock gate leaf.Carry out chamfered to the angle of lock gate leaf lower end, when preventing lock gate leaf oscilaltion, sealing conflicts with lower vertex angle part, thus plays the effect preventing sealing impaired.
Accompanying drawing explanation
Fig. 1 to Fig. 2 is the lift lock device of prior art.
Fig. 3 is the side cross-sectional view of lift lock device of the present invention.
Fig. 4 is the front view shape of lift lock device of the present invention, illustrates the open dress state that lock gate leaf rises.
Fig. 5 is that the A_A profile of Fig. 4 is formed.
Fig. 6 illustrates the front view shape of the Door frame board of lift lock device of the present invention.
Fig. 7 illustrates the side cross-sectional diagram shape of lift lock device gate deckle board of the present invention.
Fig. 8 is showing the Door frame board of lift lock device of the present invention and the front view of gate slot portion, left and right side assembled state.
Fig. 9 is showing the Door frame board of lift lock device of the present invention and the plan view of gate slot portion, left and right side assembled state.
Figure 10 is showing the Door frame board of lift lock device of the present invention and the cross-sectional side view of gate slot portion, left and right side assembled state.
Figure 11 is the front view shape of the belfry thing of the lock gate leaf forming lift lock device of the present invention.
Figure 12 is the side view shape of the belfry thing of the lock gate leaf forming lift lock device of the present invention.
Figure 13 is the cross-sectional side view shape of the lock gate leaf that the belfry thing front-back attachment sheet material of lift lock device of the present invention manufactures.
Detailed description of the invention
In following detailed description, with reference to illustrated drawing, particular of the present invention can be implemented to illustrate.
These embodiments, for the personnel being familiar with this technical scope, can give abundant detailed description to enforcement of the present invention.Even if the present invention and various embodiment have not something in common, but might not be that repulsion is inconsistent mutually.Such as, a certain embodiment does not depart from the particular phenomenon here illustrated by the present invention, when structure or feature, all can implement according to other embodiments.
In addition, the position of the individual element in the embodiment disclosed in each or layout, only otherwise depart from the scope of the present invention and all can revise it with purport.So, below illustrate not to limit for the purpose of its scope, but suitable describe request scope of the present invention, thus define request scope of the present invention and the range content similar to it.In drawing, similar drawing symbol, can unify or make a general reference similar performance in various drawing.
Fig. 3 is the side cross-sectional view of lift lock device of the present invention, and Fig. 4 is the front view shape of lift lock device of the present invention, illustrates the open dress state that lock gate leaf (100) rises.
Above-mentioned lock gate leaf (100) reserves the distance of the width can accommodating lock gate leaf (100) on gate concrete wall surface (101), vertically in the left and right sides enter to establish left and right sides to gate slot parts (102), its both side ends becomes the guiding moved up and down after filling in installation.Left and right sides should use to the metal material of gate slot parts (102) the stainless-steel sheet manufacture preventing from corroding, and is highly not less than 2 times of above-mentioned lock gate leaf (100).Above-mentioned left and right sides to gate slot parts (102) lower end horizontally set by stainless-steel sheet Bending Processing is the gate bottom support panel (103) of word shape.When above-mentioned lock gate leaf (100) closes operation, the lower end in contact of gate bottom support panel (103) and lock gate leaf (100) thus play a supporting role.
Fig. 4 A-A profile with show in Fig. 5 identical, when above-mentioned left and right sides fixedly mounts to gate slot parts (102) and concrete wall surface (101), injected the rear of Door frame board (104) position rain lock gate leaf (100) formed by plastics (or HDPE high density polyethylene (HDPE)), use stone bolt (105) through both sides parts (102) (104) to be fixed installation.Now in order to seal above-mentioned Door frame board (104) and the gap of concrete wall surface (101), use sealing adhesive plaster (106) or rubber plate.Above-mentioned Door frame board (104) is identical with shown in Fig. 6 Fig. 7, has the back side, left and right guide strip parts (109) (109) that the gate catching sheet (108) of square or circular row water hole (107) possessing and formed in order to draining and gate junction plate (108) both upper ends thereof vertical direction upwards extend.This back side, left and right guide strip parts (109) (109) forms certain space and rises with 11 word shapes, same as shown in Figure 5, serve the guide effect that gate door-plate (100) slides up and down while the end face maintaining above-mentioned lock gate leaf (100) carries out contacting with a part of face.
The size of the drain hole (107) of above-mentioned Door frame board (104) should be less than the surface area of lock gate leaf (100), make above-mentioned lock gate leaf (100) can say that drain hole is tackled, keep certain distance that sealing mounting groove is set in its circumferential outer edge with the frame of above-mentioned drain hole (107).The sealing that insertion installation elastomeric material or plastic material are made in this sealing mounting groove.The lock gate leaf (100) bearing hydraulic pressure is in relative state with above-mentioned gate catching sheet (108), and when the state that gate is closed completely, the surface of above-mentioned lock gate leaf (100) and above-mentioned sealing (110) pressurized close contact make gap sealing prevent from leaking.
Same as shown in Figure 10, above-mentioned left and right sides is fixed to each free bolt (112) in upper end of gate slot parts (102) word dihedral stop component (111), this stop component possesses when the drain hole (107) of above-mentioned gate door-plate (110) opens into peak position completely, makes the function that it no longer rises.Owing to being simple word dihedral stop component, only has the axle (113) promoting the above-mentioned lock gate leaf (100) of above-mentioned left and right sides in the middle of gate slot parts (102) (102) to pass through, thus forms open space.As long as remove above-mentioned stop component (111) above-mentioned lock gate leaf (100) just can be made freely to be got by top remove.
Figure 13 illustrates according to lock gate leaf of the present invention (100), and above-mentioned lock gate leaf (100) uses bolt (117) that the front-back of the belfry thing (114) shown in Figure 11 and Figure 12 is carried out connection by front/rear door impeller (115) (116) of plastics (or HDPE high density polyethylene (HDPE)) injection moulding to form.Said frame structure (114) Horizontal vertical is to intersecting at a certain distance, multiple framework (118) (119) weld with lattice shape arrangement, and the center upper portion of belfry thing (114) is provided with connecting axle (113) lower end can make it can pivotal hinge connection portion (120).Chamfering (121) will be carried out in the angular position of above-mentioned front/rear door impeller (115) (116), minimumly the lower angle of the gate flap plate (116) below of contact sealing (110) to be carried out chamfering (121) or rounding process, thus make lock gate leaf (100) avoid the right angle conflict of angle end when liter decline is mobile, make it can decline smoothly along inclined-plane.
Here the unaccounted symbol 122 of Fig. 3 is the power set driving gate opening/closing, and these power set have manual opening-closing, motor, the various ways such as hydraulic pressure.But owing to not being main exploration formation of the present invention, so description is omitted.The axle of operation (113) according to above-mentioned power set (122), in order to open and close above-mentioned lock gate leaf (100), being provided with hinge connection portion (120), making it turn round by hinge in the middle of belfry thing.
When the lock gate leaf of the present invention (100) of this formation is for open gate rising, the back side, the left and right guide strip parts of its contact surface and Door frame board only carry out contact area among a small circle, greatly reduce and to adhere to sand or foreign matter between intrinsic two sides and cause the damage on plate surface thus the phenomenon of damage sealing (110).By chamfering or rounding process are carried out in the angle of lock gate leaf (100) bottom, play the effect preventing sealing (110) impaired.Possesses the stop component (111) that the above-mentioned lock gate leaf of restriction (100) is risen, open space is arranged at the top of lock gate leaf (100), substantially increases the convenience of apportioned effort during installation combination operation and the maintenance of lock gate leaf (100).
This manual has described the preferred embodiment of the invention described above.This is for performing the known best case of inventor of the present invention. if those skilled in the art, the variation of this correct embodiment also can be implemented by this manual.Inventor expects the technician being familiar with business will implement this variation, and present inventor also advocates to implement the embodiment not having specified otherwise beyond the present invention.So the present invention allows according to the law be suitable for, and contains other variation of the theme close with request scope or equalization.In addition, possible the owning of described key element
Combination, if do not mention in this manual or eliminate be all included in the present invention.
Symbol description
100: lock gate leaf
101: concrete wall surface
102: left and right sides is to gate slot parts
103: gate bottom support plate
104: Door frame board
105: stone bolt
106: sealant tape
107: drain hole
108: gate catching sheet
109: the back side, left and right guide strip parts
110: sealing
111: stop component
112: bolt
113: axle
114: belfry thing
115: Qianmen impeller
116: back door impeller
117: bolt
118,119: framework (laterally, vertical)
120: joint pin connecting portion
121: chamfering
122: power set
123: joint pin

Claims (4)

1. a lift lock device, described lift lock device is made up of following structure: by possessing open lock gate leaf, water storage being discharged into the gate catching sheet of dirty drain hole, and the Door frame board that the back side, the left and right guide strip parts that upwards extend with 11 fonts at a certain distance of both sides, described gate catching sheet top are formed, described Door frame board plays lock gate leaf and rises decline guiding and supporting role; The sealing installed around the drain hole of described gate catching sheet; About described Door frame board, the left and right sides of vertical fixing steel matter is to gate slot parts; Described left and right sides to gate slot parts separately top be prevent lock gate leaf rise shape stop component; Described left and right sides is to the lock gate leaf inserting Door frame board described in the opening and closing that arranges vertical between gate slot parts; And described left and right sides is to the gate bottom support panel of gate slot component bottom ends horizontally set.
2. lift lock device as claimed in claim 1, it is characterized in that: the front/rear door impeller that described lock gate leaf is installed below by multiple frame parts Horizontal vertical before the belfry thing intersected to form and structure formed, and at least chamfering or rounding process will be carried out in the angle, impeller bottom, back door contacted with top sealing.
3. lift lock device as claimed in claim 2, is characterized in that: the cross member of described belfry thing is the structure of font, a vertical parts side is made up of flat board, and described cross member welds with vertical parts and forms, before described cross member with form screw below with fixing front/rear door impeller.
4. as the lift lock device in claims 1 to 3 as described in any one, it is characterized in that: the top central authorities of described belfry thing are provided with hinge connection portion, the axle being elevated described lock gate leaf can be turned round at hinge connection portion by hinge.
CN201410587996.0A 2014-07-25 2014-10-28 Lift gate device Pending CN105274970A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140094447A KR20160013364A (en) 2014-07-25 2014-07-25 Pulling up type floodgate device
KR10-2014-94447 2014-07-25

Publications (1)

Publication Number Publication Date
CN105274970A true CN105274970A (en) 2016-01-27

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ID=55144730

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410587996.0A Pending CN105274970A (en) 2014-07-25 2014-10-28 Lift gate device

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Country Link
KR (1) KR20160013364A (en)
CN (1) CN105274970A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109371924A (en) * 2018-12-25 2019-02-22 中国电建集团成都勘测设计研究院有限公司 High water head plane gate structure and gate flap

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CN106480860B (en) * 2016-12-15 2018-08-21 湖南省桃江县湘中水工机械有限公司 It is a kind of using river water weight and the dam of momentum
CN107724346A (en) * 2017-11-23 2018-02-23 成都市绿洲节水灌溉工程有限公司 It is a kind of that there is the regulating gate for intercepting function
KR102106061B1 (en) * 2018-04-10 2020-05-04 주식회사 진원산업 water gate
CN110193484B (en) * 2019-06-18 2024-02-02 上海勘测设计研究院有限公司 Mounting structure of vertical lift gate
CN110593218B (en) * 2019-09-18 2024-08-16 中铁第五勘察设计院集团有限公司 Two-way water blocking gate
KR102241211B1 (en) 2020-12-18 2021-04-16 (주)엠닉스 Screw type water gate

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08232247A (en) * 1994-12-27 1996-09-10 Hideo Seki Water gate with water leakage preventer
KR20030075942A (en) * 2002-03-21 2003-09-26 주식회사 휴먼아이티 Sluice gate for water supply and wastewater
CN2595878Y (en) * 2003-01-16 2003-12-31 田文海 Simple water gate
KR200408812Y1 (en) * 2005-10-11 2006-02-17 신현준 Watergate structure thereof for diminishes a friction resistance
CN201857604U (en) * 2010-08-30 2011-06-08 安徽省(水利部淮河水利委员会)水利科学研究院 Novel gate
CN202265804U (en) * 2011-10-10 2012-06-06 安徽铜都阀门股份有限公司 Self-sealing light stainless steel gate

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08232247A (en) * 1994-12-27 1996-09-10 Hideo Seki Water gate with water leakage preventer
KR20030075942A (en) * 2002-03-21 2003-09-26 주식회사 휴먼아이티 Sluice gate for water supply and wastewater
CN2595878Y (en) * 2003-01-16 2003-12-31 田文海 Simple water gate
KR200408812Y1 (en) * 2005-10-11 2006-02-17 신현준 Watergate structure thereof for diminishes a friction resistance
CN201857604U (en) * 2010-08-30 2011-06-08 安徽省(水利部淮河水利委员会)水利科学研究院 Novel gate
CN202265804U (en) * 2011-10-10 2012-06-06 安徽铜都阀门股份有限公司 Self-sealing light stainless steel gate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109371924A (en) * 2018-12-25 2019-02-22 中国电建集团成都勘测设计研究院有限公司 High water head plane gate structure and gate flap

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Application publication date: 20160127