Arch dam crest and portal crane platform connecting structure

Abstract

According to the connecting structure of the arch dam crest and the portal crane platform, a foundation pit is arranged on the side, close to the portal crane platform, of the arch dam crest, an overturning platform is installed in the foundation pit in an overturning mode, an overturning device is connected with the overturning platform, and the overturning device can overturn the overturning platform from the state that the overturning platform is flush with the arch dam crest to the inclined state that the arch dam crest is connected with the portal crane platform. The overturning platform is installed in the foundation pit in an overturning mode, the overturning platform can be overturned from the state that the overturning platform is flush with the arch dam crest to the inclined state that the arch dam crest is connected with the portal crane platform through the overturning device, and the overturning platform can also be overturned from the inclined state that the arch dam crest is connected with the portal crane platform to the state that the overturning platform is flush with the arch dam crest. Therefore, the automobile can enter the portal crane platform, the material transfer efficiency is improved, and the safety risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of arch dam construction, in particular to a connection structure between an arch dam crest and a gantry crane platform. Background Art

[0002] The arch dam crest is mainly used to meet the needs of passage and observation. The gantry crane platform on the arch dam crest is mainly used to provide a construction site for the opening and closing of the accident inspection gates of the middle and surface holes of the flood discharge. Figure 3 There is usually a height difference of 1-2m between the arch dam crest 20 and the gantry platform 10. Most projects use stairs to meet the needs of personnel passing from the arch dam crest 20 to the gantry platform 10. When the relevant gantry cranes or accident maintenance gates on the gantry platform 10 are damaged and need to be repaired, a truck crane is generally used to lift the damaged objects or repair materials from the gantry platform 10 to the arch dam crest 20 for repair. At present, the stairway can only provide personnel passage, and cars cannot enter the gantry platform 10. The method of transporting materials by truck crane is inefficient and has high safety risks. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a connection structure between the arch dam crest and the gantry crane platform, by arranging a foundation pit on the arch dam crest close to the gantry crane platform, and installing a flipping platform in the foundation pit, and the flipping device can flip the flipping platform from a state level with the arch dam crest to an inclined state connected with the arch dam crest and the gantry crane platform, so that the car can enter the gantry crane platform, thereby improving the material transfer efficiency and reducing the safety risk.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a connection structure between the arch dam top and the gantry crane platform, a foundation pit is arranged on the side of the arch dam top close to the gantry crane platform, a turning platform is installed inside the foundation pit, a turning device is connected to the turning platform, and the turning device can turn the turning platform from a state flush with the arch dam top to an inclined state in which the arch dam top is connected to the gantry crane platform.

[0005] The foundation pit is provided with an articulated seat at a side of the arch dam top far away from the gantry crane platform, and the turnover platform is hinged to the articulated seat.

[0006] The turning device is installed in the foundation pit, the turning device is connected to the turning platform and supported, and the turning device is used to push up and overturn the turning platform.

[0007] The turning device is a hydraulic cylinder, and both ends of the hydraulic cylinder are respectively hinged to the foundation pit and the turning platform.

[0008] The foundation pit is also provided with a limit platform on the side close to the gantry crane platform, and the limit platform is used for placing the turning platform.

[0009] The gantry crane platform is provided with at least one mounting groove on the side close to the arch dam top, a guide sleeve is fixedly provided on the side close to the foundation pit of the mounting groove, a telescopic rod is slidably installed in the guide sleeve, a push rod device is installed in the mounting groove, the push rod device is connected with the telescopic rod, and when the push rod device is extended, the telescopic rod is pushed out of the guide sleeve.

[0010] The overturning platform is a steel structure platform.

[0011] Asphalt concrete is also laid on the steel structure platform.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model installs a flipping platform in a foundation pit, and through a flipping device, the flipping platform can be flipped from a state level with the arch dam crest to an inclined state where the arch dam crest and the gantry platform are connected, and can also be flipped from the inclined state where the arch dam crest and the gantry platform are connected to a state level with the arch dam crest, so that the car can enter the gantry platform, thereby improving the material transfer efficiency and reducing the safety risk.

[0014] 2. The foundation pit of the utility model is also provided with a limit platform on the side close to the gantry platform, and the limit platform is used to place the turning platform. When the end of the turning platform away from the hinged seat is placed on the limit platform, the turning platform is flush with the top of the arch dam.

[0015] 3. When the flip platform is in an inclined state connected with the arch dam top and the gantry platform, the push rod device pushes the telescopic rod out of the guide sleeve. At this time, the telescopic rod extends under the flip platform to support the flip platform, thereby ensuring the stability of the flip platform in the inclined state.

[0016] 4. The connection structure of the utility model can not only ensure that the car can get on the gantry platform, but also ensure the overall beauty and coordination of the dam top. When the flip platform is not in use, the flip platform is flush with the arch dam top and does not affect the road traffic on the dam top. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic structural diagram of the turning platform of the utility model when it is flush with the top of the arch dam.

[0019] Figure 2 The utility model is a schematic diagram of an inclined state in which the turning platform is connected with the arch dam top and the gantry crane platform.

[0020] Figure 3 This is a top view structural diagram of the installation position of the flip platform.

[0021] In the figure:

[0022] The gantry crane platform 10 , the mounting groove 11 , the guide sleeve 12 , the telescopic rod 13 , the push rod device 14 , the cover plate 15 , the arch dam top 20 , the hinge seat 21 , the foundation pit 30 , the limit platform 31 , the turning platform 40 , the operating hole 41 , and the turning device 50 . DETAILED DESCRIPTION

[0023] See also Figure 1-2 A connection structure between an arch dam crest and a gantry platform, wherein a foundation pit 30 is arranged on the side of the arch dam crest 20 close to the gantry platform 10, a turning platform 40 is installed in the foundation pit 30, and a turning device 50 is connected to the turning platform 40, and the turning device 50 can turn the turning platform 40 from a state level with the arch dam crest 20 to an inclined state where the arch dam crest 20 and the gantry platform 10 are connected. The utility model installs the turning platform 40 in a turning manner in the foundation pit 30, and the turning device 50 can turn the turning platform 40 from a state level with the arch dam crest 20 to an inclined state where the arch dam crest 20 and the gantry platform 10 are connected, and can also return from the inclined state where the arch dam crest and the gantry platform are connected to the state level with the arch dam crest, so that the car can enter the gantry platform 10, thereby improving the material transfer efficiency and reducing the safety risk.

[0024] In a preferred embodiment, the foundation pit 30 is provided with an articulated seat 21 on the side of the arch dam crest 20 away from the gantry platform 10, and the turnover platform 40 is hinged to the articulated seat 21. Specifically, the articulated seat 21 is pre-buried and installed on the arch dam crest 20, see Figure 3 The flip platform 40 is provided with a notch for matching the hinge seat 21, and the flip platform 40 and the hinge seat 21 are hinged via a pivot. Figure 3 In the figure, it is also shown that an operating hole 41 is provided at a distance between the notch of the overturning platform 40, and the operating hole 41 is used for the installation and maintenance of the pivot. In order to facilitate the passage of vehicles, the top of the operating hole 41 is closed and the bottom is open.

[0025] For further information, see Figure 1 , 2 The turning device 50 is installed in the foundation pit 30 , and the turning device 50 is connected and supported with the turning platform 40 . The turning device 50 is used to overturn the turning platform 40 .

[0026] In a preferred solution, the turning device 50 is a hydraulic cylinder, and both ends of the hydraulic cylinder are respectively hinged to the foundation pit 30 and the turning platform 40. Figure 2In the figure, a CB type double-ear seat is installed at the bottom of the foundation pit 30, a CA type single-ear seat is installed at the cylinder end of the hydraulic cylinder, the CB type double-ear seat is hinged to the CA type single-ear seat, a CA type single-ear seat is installed at the bottom of the flip platform 40, a Y-type joint is installed at the piston rod end of the hydraulic cylinder, and the Y-type joint is hinged to the CA type single-ear seat installed at the bottom of the flip platform 40.

[0027] In order to ensure the reliability and balance of the operation of the turning platform 40, see Figure 3 At least two sets of the turning devices 50 are provided, and the two sets of the turning devices 50 operate synchronously.

[0028] For further information, see Figure 1 The foundation pit 30 is also provided with a limit platform 31 on the side close to the gantry platform 10, and the limit platform 31 is used to place the turnover platform 40. When the end of the turnover platform 40 away from the hinge seat 21 is placed on the limit platform 31, the turnover platform 40 is flush with the arch dam crest 20. Preferably, the limit platform 31 is a concrete structure integrated with the gantry platform 10.

[0029] See also Figure 1-3 The gantry platform 10 is provided with two installation grooves 11 on the side close to the arch dam crest 20. A guide sleeve 12 is pre-buried and fixedly provided on the side close to the foundation pit 30. A telescopic rod 13 is slidably installed in the guide sleeve 12. A push rod device 14 is installed in the installation groove 11. The push rod device 14 is connected with the telescopic rod 13. When the push rod device 14 is extended, the telescopic rod 13 is pushed out of the guide sleeve 12. Through the above structure, when the flip platform 40 is in an inclined state connected with the arch dam crest 20 and the gantry platform 10, that is, Figure 2 When the turning platform 40 is in the middle state, the push rod device 14 pushes the telescopic rod 13 out of the guide sleeve 12. At this time, the telescopic rod 13 extends under the turning platform 40 to support the turning platform 40, thereby ensuring the stability of the turning platform 40 in the tilted state.

[0030] The push rod device 14 can be one of a hydraulic cylinder, a gas cylinder, and an electric push rod.

[0031] Furthermore, in order to ensure safety, a cover plate 15 is installed on the installation slot 11 .

[0032] In a preferred embodiment, the turning platform 40 is a steel structure platform.

[0033] Furthermore, asphalt concrete is also laid on the steel structure platform. Laying asphalt concrete on the steel structure platform ensures consistency with the road surface of the arch dam crest 20.

[0034] It should be noted that in order to ensure the firmness of the asphalt concrete paving, retaining edges are welded around the steel structure platform, and rivets are welded on the steel structure platform. The asphalt concrete is laid in the retaining edges of the steel structure platform, and the rivets are buried in the asphalt concrete. Asphalt concrete is laid on the steel structure platform, which is an existing technology. Asphalt concrete can be laid by referring to the method of steel box girder bridge deck.

[0035] In addition to the above structure, the flipping platform 40 can also be flipped in other ways, such as the depth of the foundation pit 30 is consistent with the thickness of the flipping platform 40, the flipping platform 40 is a steel structure platform, the flipping platform 40 is placed in the foundation pit 30, and the flipping platform 40 is provided with pull rings on both sides of one end of the gantry platform 10, and a raised mounting base is provided on both sides of the arch dam crest 20, and a winch is installed on the mounting base. The steel wire rope on the winch is connected to the pull ring, and the flipping platform 40 is pulled by the winch to realize the flipping platform 40 from the state flush with the arch dam crest to the inclined state connected with the arch dam crest and the gantry platform, or from the inclined state connected with the arch dam crest and the gantry platform back to the state flush with the arch dam crest. The traction and bridge flipping structure disclosed in CN203514171U can also be used.

[0036] The working principle or action process of the utility model is as follows:

[0037] When the car does not need to go up to the portal platform 10, refer to Figure 1 At this time, the end of the flip platform 40 away from the hinge seat 21 is placed on the limit platform 31, and the flip platform 40 is flush with the arch dam top 20.

[0038] When a car needs to go up to the portal platform 10, refer to Figure 2 At this time, the flipping device 50 is started, and the flipping platform 40 is turned. When the flipping platform 40 is in an inclined state connected with the arch dam top 20 and the gantry platform 10, the push rod device 14 pushes the telescopic rod 13 to extend out of the guide sleeve 12. At this time, the telescopic rod 13 extends under the flipping platform 40 to support the flipping platform 40, thereby ensuring the stability of the flipping platform 40 in the inclined state.

[0039] When the flipping platform 40 needs to return to a state flush with the arch dam top 20, the push rod device 14 pulls the telescopic rod 13 to retract the guide sleeve 12, and the flipping device 50 retracts and descends until the end of the flipping platform 40 away from the hinged seat 21 is placed on the limit platform 31, and the road traffic on the dam top is restored.

Claims

1. A connection structure between an arch dam crest and a gantry crane platform, characterized in that: A foundation pit (30) is arranged on the side of the arch dam crest (20) close to the gantry crane platform (10), a turning platform (40) is turned inside the foundation pit (30), a turning device (50) is connected to the turning platform (40), and the turning device (50) can turn the turning platform (40) from a state where it is level with the arch dam crest (20) to an inclined state where the arch dam crest (20) is connected to the gantry crane platform (10).

2. The arch dam crest and gantry crane platform connection structure according to claim 1, characterized in that: The foundation pit (30) is provided with an articulated seat (21) on a side of the arch dam crest (20) away from the gantry crane platform (10), and the turnover platform (40) is hinged to the articulated seat (21).

3. The arch dam crest and gantry crane platform connection structure according to claim 1, characterized in that: The turning device (50) is installed in the foundation pit (30), the turning device (50) is connected and supported with the turning platform (40), and the turning device (50) is used to push up and overturn the turning platform (40).

4. The arch dam crest and gantry crane platform connection structure according to claim 3, characterized in that: The turning device (50) is a hydraulic cylinder, and both ends of the hydraulic cylinder are respectively hinged to the foundation pit (30) and the turning platform (40).

5. The arch dam crest and gantry crane platform connection structure according to claim 1, characterized in that: The foundation pit (30) is further provided with a limiting platform (31) on the side close to the portal machine platform (10), and the limiting platform (31) is used to place the turning platform (40).

6. The arch dam crest and gantry crane platform connection structure according to claim 1, characterized in that: The gantry crane platform (10) is provided with at least one mounting groove (11) on the side close to the arch dam crest (20), a guide sleeve (12) is fixedly provided on the side close to the foundation pit (30) of the mounting groove (11), a telescopic rod (13) is slidably mounted in the guide sleeve (12), a push rod device (14) is mounted in the mounting groove (11), the push rod device (14) is connected to the telescopic rod (13), and when the push rod device (14) is extended, the telescopic rod (13) is pushed out of the guide sleeve (12).

7. The arch dam crest and gantry crane platform connection structure according to claim 1, characterized in that: The turning platform (40) is a steel structure platform.

8. The arch dam crest and gantry crane platform connection structure according to claim 7, characterized in that: Asphalt concrete is also laid on the steel structure platform.

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