CN203307780U - Gate top lintel - Google Patents
Gate top lintel Download PDFInfo
- Publication number
- CN203307780U CN203307780U CN2013203492456U CN201320349245U CN203307780U CN 203307780 U CN203307780 U CN 203307780U CN 2013203492456 U CN2013203492456 U CN 2013203492456U CN 201320349245 U CN201320349245 U CN 201320349245U CN 203307780 U CN203307780 U CN 203307780U
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- Prior art keywords
- gate
- top lintel
- lintel
- cover plate
- blocking plate
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Abstract
The utility model relates to the field of hydropower devices, in particular to a gate tope lintel which aims to achieve the purposes that jet flow can be avoided when a gate is opened, and the gate top lintel is simple in structure. The gate top lintel comprises a gate, a top lintel body and a gate sealing piece, wherein the gate sealing piece is arranged on the side wall of one side, close to the top lintel body, of the gate, a flow blocking plate is arranged at the bottom of the top lintel body and is horizontally arranged, the gate sealing piece and the side wall of the top lintel body are tightly attached, the gate sealing piece is located on the flow blocking plate, and the shortest distance between the end face, close to one end of the gate, of the flow blocking plate and the side wall of the gate is smaller than the shortest distance between the top lintel body and the side wall of the gate. Through the flow blocking plate arranged at the bottom of the top lintel body, once the gate is opened and the gate sealing piece and the top lintel body are disengaged, the extending end face of the flow blocking plate can weaken jet flow to a large extent, and the gate top lintel can be applied to hydropower gates which need to the opened or half-opened frequently.
Description
Technical field
The utility model relates to water power equipment field, especially a kind of gate top lintel.
Background technology
Gate is one of important component part of hydraulic structure, and its effect is be used to sealing the aperture of hydraulic structure, and can be as required all or these apertures of partly open, to regulate water levels of upstream and downstream, drawoff discharge.
Traditional gate, when closing, is that the sidewall of being close to the top lintel by being arranged at gate seal on gate is realized.The top lintel is cast on concrete dam body, and top lintel, gate seal and gate three by the current interception, realize blocking fully current jointly thus.But, when the gate of this spline structure is opened or only need to be opened a part at needs, due to the gate seal, move on during along with gate opening, therefore the gate seal no longer is close to the top lintel.When both no longer were close to, the current of high pressure can penetrate from the gap between gate and top lintel, and pressure is very large, can cause certain damage to equipment like this, caused the gate vibration.In addition, jet can allow the interior gate flap downstream cavity of gate shaft seal, and causes air compensation freely not have negative pressure to produce, and not only increases the Qi Menli of gate, but also causes the cavitation erosion of gate slot.
The mode that solves at present this technical problem is to increase top lintel height, and assurance gate seal is close to the top lintel always in the stroke along with the gate motion, thereby avoids jet to occur.But such scheme is not only brought the problem of cost increasing, and increased the difficulty of installation work.
The utility model content
Technical problem to be solved in the utility model is to provide and a kind ofly jet occurs while avoiding gate opening, and this body structure of equipment comparatively simple gate top lintel again.
The technical scheme that its technical problem that solves the utility model adopts is: gate top lintel, comprise gate, top lintel, and be arranged at gate near the gate seal on the sidewall of top lintel one side, the bottom of top lintel is provided with aft cover plate, and described aft cover plate is horizontal arrangement, the sidewall of gate seal and top lintel is close to and described gate seal is positioned at the aft cover plate top, near the end face of gate one end and the beeline of gate sidewall, is less than the beeline between top lintel and described gate sidewall on aft cover plate.
Further that the gate seal is caulking gum.
The beneficial effects of the utility model are: by the bottom at the top lintel, aft cover plate is set, and near the end face of gate one end and the beeline of gate sidewall, be less than the beeline between top lintel and described gate sidewall on aft cover plate, in case after gate opening and gate seal and top lintel disengage, the end face of aft cover plate expenditure can weaken jet to a great extent, finally only has a small amount of current to flow into by the gap between aft cover plate and gate.The utility model can be applied to comparatively frequently to open or semi-open water power gate in.
The accompanying drawing explanation
Fig. 1 is rigging position figure of the present utility model.
Fig. 2 is the enlarged drawing of the utility model installation region.
In figure, be labeled as: gate 1, gate seal 11, top lintel 2, aft cover plate 21, flow inlet 3, water export 4, jet exit 5.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Gate top lintel as shown in Figure 1 and Figure 2, comprise gate 1, top lintel 2, and be arranged at gate 1 near the gate seal 11 on the sidewall of top lintel 2 one sides, the bottom of top lintel 2 is provided with aft cover plate 21, and described aft cover plate 21 is horizontal arrangement, gate seal 11 is close to the sidewall of top lintel 2 and described gate seal 11 is positioned at aft cover plate 21 tops, near the end face of gate 1 one ends and the beeline of gate 1 sidewall, is less than the beeline between top lintel 2 and described gate 1 sidewall on aft cover plate 21.
That shown in Figure 1 is the installation site figure of the utility model with respect to dam.Fig. 2 is the installation region enlarged drawing, and aft cover plate 21 is installed on the bottom of top lintel 2.On aft cover plate 21, be less than the beeline between top lintel 2 and described gate 1 sidewall near the end face of gate 1 one ends and the beeline of gate 1 sidewall., its meaning just is, aft cover plate 21 exceeds the part of top lintel 2 bottom margins, the gap between top lintel 2 and gate 1 can be dwindled, thereby reduces the formation of jet and finally reduce jet.From the practical point of view, the gap between aft cover plate 21 and gate 1 is the smaller the better.But between aft cover plate 21 and gate 1, do not contact, if because there is direct contact meeting when switch gate 1, to cause the wearing and tearing of aft cover plate 21, the distance between aft cover plate 21 and gate 1 gets final product in line with the principle of dwindling as far as possible.
In order to reduce the cost of manufacture of gate seal 11, described gate seal 11 is caulking gum.As shown in Figure 2, when gate seal 11 is caulking gum, also can good sealing effectiveness be arranged with top lintel 2, and the caulking gum cost is low, also very convenient during replacing.
Claims (2)
1. gate top lintel, comprise gate (1), top lintel (2), and be arranged at gate (1) near the gate seal (11) on the sidewall of top lintel (2) one sides, it is characterized in that: the bottom of top lintel (2) is provided with aft cover plate (21), and described aft cover plate (21) is horizontal arrangement, gate seal (11) is close to the sidewall of top lintel (2) and described gate seal (11) is positioned at aft cover plate (21) top, on aft cover plate (21), be less than the beeline between top lintel (2) and described gate (1) sidewall near the end face of gate (1) one end and the beeline of gate (1) sidewall.
2. gate as claimed in claim 1 top lintel, it is characterized in that: described gate seal (11) is caulking gum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203492456U CN203307780U (en) | 2013-06-18 | 2013-06-18 | Gate top lintel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203492456U CN203307780U (en) | 2013-06-18 | 2013-06-18 | Gate top lintel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203307780U true CN203307780U (en) | 2013-11-27 |
Family
ID=49613998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203492456U Expired - Lifetime CN203307780U (en) | 2013-06-18 | 2013-06-18 | Gate top lintel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203307780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778791A (en) * | 2019-03-14 | 2019-05-21 | 长江勘测规划设计研究有限责任公司 | The anti-jetting lintel of down-the-hole type upstream sealing emergency overhaul gate |
-
2013
- 2013-06-18 CN CN2013203492456U patent/CN203307780U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778791A (en) * | 2019-03-14 | 2019-05-21 | 长江勘测规划设计研究有限责任公司 | The anti-jetting lintel of down-the-hole type upstream sealing emergency overhaul gate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU HYDROELECTRIC INVESTIGATION + DESIGN INSTI Free format text: FORMER NAME: CHENGDU HYDROELECTRIC INVESTIGATION + DESIGN INSTITUTE OF CHINA HYDROPOWER CONSU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee after: HYDROCHINA CHENGDU ENGINEERING Corp. Address before: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee before: POWERCHINA Chengdu Engineering Corporation Limited |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHINA POWER GROUP CHENGDU INVESTIGATION DESIGN + R Free format text: FORMER NAME: CHENGDU HYDROELECTRIC INVESTIGATION + DESIGN INSTITUTE OF SPC |
|
| CP01 | Change in the name or title of a patent holder |
Address after: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee after: POWERCHINA Chengdu Engineering Co.,Ltd. Address before: The North Qingyang District of Chengdu City, Sichuan Province, No. 610072 Patentee before: HYDROCHINA CHENGDU ENGINEERING Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |
|
| CX01 | Expiry of patent term |