CN110541401A - Main reverse side three-way supporting limiting fixed wheel device for plane gate - Google Patents
Main reverse side three-way supporting limiting fixed wheel device for plane gate Download PDFInfo
- Publication number
- CN110541401A CN110541401A CN201910851436.4A CN201910851436A CN110541401A CN 110541401 A CN110541401 A CN 110541401A CN 201910851436 A CN201910851436 A CN 201910851436A CN 110541401 A CN110541401 A CN 110541401A
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- web
- wheel device
- supporting
- gate
- fixed wheel
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- 230000000670 limiting effect Effects 0.000 title claims abstract description 23
- 230000002441 reversible effect Effects 0.000 title claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000002411 adverse Effects 0.000 claims 1
- 230000002829 reductive effect Effects 0.000 abstract description 5
- 230000003628 erosive effect Effects 0.000 abstract description 4
- 230000002146 bilateral effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
- E02B7/26—Vertical-lift gates
- E02B7/30—Vertical-lift gates with guide wheels or rollers for the gates
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention discloses a main reverse side three-way supporting and limiting fixed wheel device for a plane gate, which comprises a gate and edge beam webs arranged at two ends of the gate, wherein the edge beam webs are provided with the main reverse side three-way supporting and limiting fixed wheel device, the main reverse side three-way supporting and limiting fixed wheel device comprises cantilever type drum-shaped pin shafts fixedly arranged on the edge beam webs, the outer ends of the cantilever type drum-shaped pin shafts are fixedly provided with pressure seat type simple supporting side wheels, and the cantilever type drum-shaped pin shafts are fixedly provided with the cantilever type fixed wheel devices. The main reverse side three-way supporting and limiting fixed wheel device is positioned on the outer side of the web plate of the side beam, the large part of the side beam can be positioned on the outer side of the gate slot, the size of the gate slot is smaller than that of the gate slot of the traditional simple support type fixed wheel device, the hydraulic condition of the gate slot can be improved, the cavitation erosion of the gate slot is reduced, the side direction of the gate realizes the in-slot support through the pressure seat type simple support side wheel, the side direction limiting effect of the gate is good, and the phenomenon that the traditional out-slot inclined plane supporting gate is unstable in operation is avoided.
Description
Technical Field
The invention relates to a main reverse side three-way supporting and limiting fixed wheel device for a plane gate, and belongs to the technical field of metal structures of hydropower engineering.
Background
At present, the plane fixed wheel gate mainly has two supporting types of a simple supporting type and a cantilever type. For a simple supporting type fixed wheel device, the fixed wheel device is supported on a bilateral beam web plate, the fixed wheel device is usually large in size of a door slot due to the fact that the bilateral beam web plate is located on the inner side of the door slot, hydraulic conditions are poor, cavitation erosion of the door slot is severe, the fixed wheel device is arranged under the influence of the distance between main beam web plates, the arrangement position of the fixed wheel device is limited, sometimes, wheel pressure of a certain fixed wheel device is much larger than that of other fixed wheel devices, the fixed wheel device is not in contact with a rail uniformly, partial fixed wheels are disengaged, the wheel pressure of adjacent fixed wheels is increased too much to damage, and safe operation of a gate is not facilitated; for the cantilever type fixed wheel device, a shaft sleeve is traditionally adopted for supporting, the adaptive eccentricity capability is poor, the operation of the gate is easy to block, the outer end of a supporting shaft of the traditional cantilever type fixed wheel device is limited by a shaft stop plate, and the shaft stop plate bears the lateral load of the whole fixed wheel device in the operation process of the gate, so the fixed wheel device of the type is generally used for a small-hole gate with small fixed wheel bearing load; in addition, the lateral support of the gate is usually in an out-of-groove type and is arranged on the downstream side, and the planar fixed wheel gate generally adopts a II-type gate groove, the downstream side of the gate groove is an inclined plane, so that the lateral support of the gate is not uniformly contacted with the rail surface on the downstream side of the gate groove, the lateral limiting effect of the gate is poor, the operation is easy to shake, and the safe operation of the gate is not facilitated; therefore, the existing technology is still not perfect and needs to be further improved.
Disclosure of Invention
The invention aims to provide a main reverse side three-way supporting and limiting fixed wheel device for a plane gate, which overcomes the defects in the prior art.
The technical scheme of the invention is as follows: the utility model provides a spacing fixed wheel device of owner's contralateral three-dimensional support for plane gate, includes the gate and sets up the boundary beam web at the gate both ends, installs the spacing fixed wheel device of owner's contralateral three-dimensional support on the boundary beam web, the spacing fixed wheel device of owner's contralateral three-dimensional support includes cantilever type drum type round pin axle of fixed mounting on the boundary beam web, at cantilever type drum type round pin axle's outer end fixed mounting pressure seat formula letter side wheel, at cantilever type drum type round pin epaxial fixed mounting cantilever type fixed wheel device.
Further, the boundary beam web is composed of a boundary beam outer web, a boundary beam outer web bearing plate, a boundary beam inner web and a boundary beam inner web bearing plate in a welding mode, the boundary beam outer web bearing plate is symmetrically welded on two sides of the boundary beam outer web, the boundary beam inner web bearing plate is symmetrically welded on two sides of the boundary beam inner web, the cantilever drum-shaped pin shaft is of an integrated structure composed of an outer section, a spherical hinge supporting section, a middle section, an annular conical hole pressing plate supporting section, an outer side beam web supporting section, a conical transition section and an inner side beam web supporting section, the outer side beam web supporting section is fixed on the boundary beam outer web and the boundary beam outer web bearing plate, the inner side beam web supporting section is fixed on the boundary beam inner web and the boundary beam inner web bearing plate, a pressure seat type simply-supported side wheel is installed on the end face of the outer section, and a cantilever type fixed wheel device is installed on the spherical hinge supporting section.
furthermore, the annular taper hole pressing plate supporting section is sleeved with an annular taper hole pressing plate, and the annular taper hole pressing plate is fixed on the outer web bearing plate of the edge beam through a group of screws; the inner side beam web plate supporting section is sleeved with a shaft stopping plate, and the shaft stopping plate is fixed on the inner side beam web plate bearing plate through screws.
Furthermore, the pressure seat type simple support side wheel comprises a pressure seat type simple support wheel frame and a wheel hub, the pressure seat type simple support wheel frame is composed of a circular pressing plate and two supporting plates symmetrically welded on the circular pressing plate, the circular pressing plate is fixed on the end face of the outer section through a screw, a pin shaft is installed between the two supporting plates, and the wheel hub is rotatably connected to the pin shaft.
Furthermore, the cantilever type fixed wheel device comprises a fixed wheel, a spherical hinge, an outer sealing ring, an inner sealing ring, a stop collar ring and a transparent cover, wherein the inner ring of the spherical hinge is fixedly arranged on the spherical hinge supporting section, the outer ring of the spherical hinge is fixedly connected with the transparent cover, and the fixed wheel is fixedly arranged on the transparent cover.
furthermore, the stop collar is sleeved on the outer section, and two ends of the stop collar are respectively tightly propped against the inner ring of the spherical hinge and the circular pressing plate.
Furthermore, an inner sealing ring and an outer sealing ring are respectively arranged at two ends of the transparent cover.
Due to the adoption of the technical scheme, the invention has the advantages that: the invention realizes the main reverse side three-way supporting and limiting function through the cantilever type fixed wheel device which is arranged at the outer side of the edge beam web plate of the gate and has the main reverse side supporting and limiting function and the pressure seat type simple supporting side wheel which can prevent the side shift; the main reverse side three-way supporting and limiting fixed wheel device is positioned on the outer side of the web plate of the side beam, the large part of the side beam can be positioned on the outer side of the gate slot, the size of the gate slot is smaller than that of the gate slot of the traditional simply-supported fixed wheel device, the hydraulic condition of the gate slot can be improved, the cavitation erosion of the gate slot is reduced, the side direction of the gate realizes the in-slot support through the simply-supported side wheel of the pressure seat type, the side direction limiting effect of the gate is good, the phenomenon that the traditional out-slot inclined plane supports the gate to run unstably is avoided, and the safe running; in addition, the cantilever type drum-shaped pin shaft is fixedly connected with the double webs on the two sides of the edge beam, the bulging section of the cantilever type drum-shaped pin shaft is positioned at the outer web of the edge beam and is fixed by the annularly-arranged screws through the annular taper hole pressing plate, and the annular taper hole pressing plate can bear the side thrust of the fixed wheel device, so that the cantilever type drum-shaped pin shaft is effectively prevented from laterally moving; in addition, the diameter of the cantilever drum-shaped pin shaft is much smaller than that of the fixed wheel, the cantilever drum-shaped pin shaft is arranged at the position of the web plate of the edge beam and has little influence on the distance between the web plates of the main beam, the fixed wheel device is favorably arranged at a proper position, the wheel pressure borne by the fixed wheel device is more uniform, the fixed wheel device is supported by a spherical hinge and is suitable for eccentricity, the fixed wheel is favorably contacted with a track, the phenomenon of hollowing is reduced, and the running reliability of the fixed wheel device is improved.
Drawings
FIG. 1 is a top view of a schematic of the structure of the present invention;
FIG. 2 is a front view of the structural schematic of the present invention;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a cross-sectional view A-A of FIG. 2;
Fig. 5 is an enlarged view B of fig. 4.
Description of reference numerals: 1-gate, 2-main reverse side three-direction supporting limit fixed wheel device, 3-cantilever fixed wheel device, 4-press seat type simply supported side wheel, 5-edge beam outer web plate, 6-edge beam outer web plate bearing plate, 7-edge beam inner web plate, 8-edge beam inner web plate bearing plate, 9-fixed wheel, 10-ball hinge, 11-outer sealing ring, 12-inner sealing ring, 13-stop collar, 14-transparent cover, 15-cantilever drum type pin shaft, 16-hub, 17-pin shaft, 18-press seat type simply supported wheel frame, 19-round press plate, 20-supporting plate, 21-outer section, 22-ball hinge supporting section, 23-middle section, 24-middle section, 25-annular taper hole press plate supporting section, 26-outer beam supporting web plate section, 27-a conical transition section, 28-an inner side beam web supporting section, 29-a screw, 30-a dead axle plate and 31-an annular taper hole pressing plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples.
The embodiment of the invention comprises the following steps: a schematic structure diagram of a main anti-side three-way supporting limiting fixed wheel device for a plane gate is shown in fig. 1-5, and comprises a gate 1 and edge beam webs arranged at two ends of the gate 1, wherein the edge beam webs are provided with main anti-side three-way supporting limiting fixed wheel devices 2, each main anti-side three-way supporting limiting fixed wheel device 2 comprises a cantilever type drum-shaped pin shaft 15 fixedly arranged on each edge beam web, a pressure base type supporting side wheel 4 is fixedly arranged at the outer end of each cantilever type drum-shaped pin shaft 15, and a cantilever type fixed wheel device 3 is fixedly arranged on each cantilever type drum-shaped pin shaft 15.
Referring to fig. 4 and 5, the edge beam web is formed by welding an edge beam outer web 5, an edge beam outer web bearing plate 6, an edge beam inner web 7 and an edge beam inner web bearing plate 8, the edge beam outer web bearing plate 6 is symmetrically welded on two sides of the edge beam outer web 5, the edge beam inner web bearing plate 8 is symmetrically welded on two sides of the edge beam inner web 7, the cantilever drum-shaped pin shaft 15 is an integrated structure formed by an outer section 21, a spherical hinge supporting section 22, a middle section 23, a middle section 24, an annular taper hole press plate supporting section 25, an outer beam web supporting section 26, a tapered transition section 27 and an inner beam web supporting section 28, the outer beam web supporting section 26 is fixed on the edge beam outer web 5 and the edge beam outer web bearing plate 6, the inner beam web supporting section 28 is fixed on the edge beam inner web bearing plate 7 and the edge beam inner web bearing plate 8, a pressure simple supporting side wheel 4 is installed on the end face of the outer section 21, a cantilever fixed wheel device 3 is arranged on the ball pivot bearing section 22. The annular taper hole pressing plate supporting section 25 is sleeved with an annular taper hole pressing plate 31, and the annular taper hole pressing plate 31 is fixed on the outer web bearing plate 6 of the side beam through a group of screws 29; the inner side beam web plate supporting section 28 is sleeved with a shaft stopping plate 30, and the shaft stopping plate 30 is fixed on the inner side beam web plate bearing plate 8 through a screw 29.
Referring to fig. 5, the pressure seat type simple support side wheel 4 comprises a pressure seat type simple support wheel frame 18 and a wheel hub 16, the pressure seat type simple support wheel frame 18 is composed of a circular pressure plate 19 and two support plates 20 symmetrically welded on the circular pressure plate 19, the circular pressure plate 19 is fixed on the end surface of an outer section 21 through a screw 29, a pin shaft 17 is installed between the two support plates 20, and the wheel hub 16 is rotatably connected on the pin shaft 17. The cantilever type fixed wheel device 3 comprises a fixed wheel 9, a spherical hinge 10, an outer sealing ring 11, an inner sealing ring 12, a stop collar ring 13 and a transparent cover 14, wherein the inner ring of the spherical hinge 10 is fixedly arranged on a spherical hinge supporting section 22, the outer ring of the spherical hinge 10 is fixedly connected with the transparent cover 14, and the fixed wheel 9 is fixedly arranged on the transparent cover 14. The stop collar ring 13 is sleeved on the outer section 21, and two ends of the stop collar ring 13 are respectively tightly propped against the inner ring of the spherical hinge 10 and the circular pressing plate 19. And an inner sealing ring 12 and an outer sealing ring 11 are respectively arranged at two ends of the transparent cover 14.
The working principle of the invention is as follows: the invention realizes the main reverse side three-way supporting and limiting function through a cantilever type fixed wheel device 3 which is arranged at the outer side of a boundary beam web plate of a gate 1 and has the main reverse side supporting and limiting function and a pressure seat type simple supporting side wheel 4 which can prevent side movement; because the main reverse side three-way supporting and limiting fixed wheel device 2 is positioned on the outer side of the web plate of the edge beam, the large part of the edge beam can be positioned on the outer side of the gate slot, the size of the gate slot is smaller than that of the gate slot of the traditional simple support type fixed wheel device, the hydraulic condition of the gate slot can be improved, the cavitation erosion of the gate slot is reduced, the gate 4 laterally realizes the in-slot support through the pressure seat type simple support side wheel 4, the lateral limiting effect of the gate 1 is good, the phenomenon that the traditional out-slot inclined plane supporting gate is unstable in operation is avoided, and the safe operation of the gate 1 is facilitated; in addition, the cantilever type drum-shaped pin shaft 15 is fixedly connected with the double webs on the two sides of the edge beam, the bulging section of the cantilever type drum-shaped pin shaft 15 is positioned at the outer web 5 of the edge beam and is fixed by the annularly-arranged screws 29 through the annular taper hole pressing plate 31, and the annular taper hole pressing plate 31 can bear the side thrust of the fixed wheel device, so that the cantilever type drum-shaped pin shaft 15 is effectively prevented from side movement; in addition, the diameter of the cantilever type drum-shaped pin shaft 15 is much smaller than that of the fixed wheel, the cantilever type drum-shaped pin shaft is arranged at the position of the web plate of the edge beam, the influence of the distance between the web plates of the main beam is less, the fixed wheel device is favorably arranged at a proper position, the wheel pressure born by the fixed wheel device is more uniform, the fixed wheel device is supported by the spherical hinge 10, the eccentric center is adapted, the fixed wheel is favorably contacted with a rail, the phenomenon of hollowing is reduced, and the running reliability of the fixed wheel device is improved.
Claims (7)
1. The utility model provides a spacing fixed wheel device of main adverse side three-dimensional support for plane gate, includes gate (1) and sets up the boundary beam web at gate (1) both ends, its characterized in that: the main reverse side three-way supporting limiting fixed wheel device (2) is installed on the boundary beam web plate, the main reverse side three-way supporting limiting fixed wheel device (2) comprises a cantilever type drum-shaped pin shaft (15) fixedly installed on the boundary beam web plate, a pressure seat type simple supporting side wheel (4) is fixedly installed at the outer end of the cantilever type drum-shaped pin shaft (15), and a cantilever type fixed wheel device (3) is fixedly installed on the cantilever type drum-shaped pin shaft (15).
2. The main reverse-side three-way supporting position-limiting wheel device for the plane floodgate according to claim 1, wherein: the boundary beam web is formed by welding a boundary beam outer web (5), a boundary beam outer web bearing plate (6), a boundary beam inner web (7) and a boundary beam inner web bearing plate (8), the boundary beam outer web bearing plate (6) is symmetrically welded on two sides of the boundary beam outer web (5), the boundary beam inner web bearing plate (8) is symmetrically welded on two sides of the boundary beam inner web (7), the cantilever drum-shaped pin shaft (15) is an integrated structure consisting of an outer section (21), a spherical hinge supporting section (22), a middle section (23), a middle section (24), an annular taper hole pressing plate supporting section (25), an outer edge beam web supporting section (26), a conical transition section (27) and an inner edge beam web supporting section (28), the outer edge beam web supporting section (26) is fixed on the boundary beam outer web (5) and the boundary beam outer web bearing plate (6), the inner edge beam web supporting section (28) is fixed on the boundary beam inner web (7) and the boundary beam inner web bearing plate (8), a pressure seat type simply supported side wheel (4) is installed on the end face of the outer section (21), and a cantilever type fixed wheel device (3) is installed on the spherical hinge supporting section (22).
3. the main reverse-side three-way supporting position-limiting wheel device for the plane floodgate according to claim 2, wherein: an annular taper hole pressing plate (31) is sleeved on the annular taper hole pressing plate supporting section (25), and the annular taper hole pressing plate (31) is fixed on the outer web bearing plate (6) of the boundary beam through a group of screws (29); the inner side beam web plate supporting section (28) is sleeved with a shaft stopping plate (30), and the shaft stopping plate (30) is fixed on the inner side beam web plate bearing plate (8) through a screw (29).
4. The main reverse-side three-way supporting position-limiting wheel device for the plane floodgate according to claim 2, wherein: the pressure seat type simply-supported side wheel (4) comprises a pressure seat type simply-supported wheel frame (18) and a wheel hub (16), the pressure seat type simply-supported wheel frame (18) is composed of a circular pressing plate (19) and two supporting plates (20) which are symmetrically welded on the circular pressing plate (19), the circular pressing plate (19) is fixed on the end face of an outer section (21) through a screw (29), a pin shaft (17) is installed between the two supporting plates (20), and the pin shaft (17) is rotatably connected with the wheel hub (16).
5. The main reverse-side three-way supporting position-limiting wheel device for the plane floodgate according to claim 2, wherein: the cantilever type fixed wheel device (3) comprises a fixed wheel (9), a spherical hinge (10), an outer sealing ring (11), an inner sealing ring (12), a stop collar ring (13) and a transparent cover (14), wherein the inner ring of the spherical hinge (10) is fixedly arranged on a spherical hinge supporting section (22), the outer ring of the spherical hinge (10) is fixedly connected with the transparent cover (14), and the fixed wheel (9) is fixedly arranged on the transparent cover (14).
6. The main reverse-side three-way supporting position-limiting wheel device for the plane floodgate according to claim 5, wherein: the stop collar ring (13) is sleeved on the outer section (21), and two ends of the stop collar ring (13) are respectively tightly propped against the inner ring of the spherical hinge (10) and the circular pressing plate (19).
7. The main reverse-side three-way supporting position-limiting wheel device for the plane floodgate according to claim 5, wherein: and an inner sealing ring (12) and an outer sealing ring (11) are respectively arranged at two ends of the transparent cover (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910851436.4A CN110541401A (en) | 2019-09-10 | 2019-09-10 | Main reverse side three-way supporting limiting fixed wheel device for plane gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910851436.4A CN110541401A (en) | 2019-09-10 | 2019-09-10 | Main reverse side three-way supporting limiting fixed wheel device for plane gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110541401A true CN110541401A (en) | 2019-12-06 |
Family
ID=68713166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910851436.4A Pending CN110541401A (en) | 2019-09-10 | 2019-09-10 | Main reverse side three-way supporting limiting fixed wheel device for plane gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541401A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832925A (en) * | 2021-10-11 | 2021-12-24 | 中山市水利水电勘测设计咨询有限公司 | Gate simple-supported main wheel sealing device |
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| JP2008156872A (en) * | 2006-12-22 | 2008-07-10 | Nippon Sharyo Seizo Kaisha Ltd | Roller gate |
| CN102677636A (en) * | 2012-05-25 | 2012-09-19 | 中水北方勘测设计研究有限责任公司 | Series bulkhead gate |
| CN105442501A (en) * | 2015-12-28 | 2016-03-30 | 中国电建集团贵阳勘测设计研究院有限公司 | Positioning device and method for plane gate fixed wheel eccentric shaft |
| CN205242364U (en) * | 2015-12-28 | 2016-05-18 | 中国电建集团贵阳勘测设计研究院有限公司 | Positioner of plane gate fixed wheel eccentric shaft |
| CN208884484U (en) * | 2017-07-13 | 2019-05-21 | 上海友为工程设计有限公司 | A kind of gate auxiliary locator |
| CN110016895A (en) * | 2019-05-16 | 2019-07-16 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of device reducing type flat bearing load |
| CN210621635U (en) * | 2019-09-10 | 2020-05-26 | 中国电建集团贵阳勘测设计研究院有限公司 | Main reverse side three-way supporting limiting fixed wheel mechanism for plane gate |
-
2019
- 2019-09-10 CN CN201910851436.4A patent/CN110541401A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008156872A (en) * | 2006-12-22 | 2008-07-10 | Nippon Sharyo Seizo Kaisha Ltd | Roller gate |
| CN102677636A (en) * | 2012-05-25 | 2012-09-19 | 中水北方勘测设计研究有限责任公司 | Series bulkhead gate |
| CN105442501A (en) * | 2015-12-28 | 2016-03-30 | 中国电建集团贵阳勘测设计研究院有限公司 | Positioning device and method for plane gate fixed wheel eccentric shaft |
| CN205242364U (en) * | 2015-12-28 | 2016-05-18 | 中国电建集团贵阳勘测设计研究院有限公司 | Positioner of plane gate fixed wheel eccentric shaft |
| CN208884484U (en) * | 2017-07-13 | 2019-05-21 | 上海友为工程设计有限公司 | A kind of gate auxiliary locator |
| CN110016895A (en) * | 2019-05-16 | 2019-07-16 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of device reducing type flat bearing load |
| CN210621635U (en) * | 2019-09-10 | 2020-05-26 | 中国电建集团贵阳勘测设计研究院有限公司 | Main reverse side three-way supporting limiting fixed wheel mechanism for plane gate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832925A (en) * | 2021-10-11 | 2021-12-24 | 中山市水利水电勘测设计咨询有限公司 | Gate simple-supported main wheel sealing device |
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