Underwater maintenance device for hydraulic gate

Abstract

An underwater maintenance device for a hydraulic gate comprises a flexible waterproof ring sleeve and a supporting piece, the flexible waterproof ring sleeve is used for surrounding a supporting mechanism on the back of the hydraulic gate and separating the supporting mechanism from surrounding water, and the lower end of the flexible waterproof ring sleeve is provided with a connecting end used for being connected with a ground foundation in a sealed mode; the flexible waterproof ring sleeve can contract downwards when not used or extend upwards to be exposed out of the water surface when overhaul and maintenance are needed. The supporting piece is arranged in the flexible waterproof ring sleeve or connected to the outer portion of the flexible waterproof ring sleeve and used for supporting the flexible waterproof ring sleeve after the flexible waterproof ring sleeve extends upwards so that the flexible waterproof ring sleeve can bear surrounding water pressure. The flexible structure of the flexible waterproof ring sleeve enables the flexible waterproof ring sleeve to deflect according to the trend of the supporting mechanism, adapts to the back space change of the hydraulic gate, can be suitable for the conditions that the back space of the hydraulic gate is small, the structure is complex and the like, solves the problem that the hydraulic gate is inconvenient to overhaul and maintain underwater, and is more convenient to set and lower in cost compared with a cofferdam of a rigid structure. And the cost is lower.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hydraulic gate overhauling device, specifically a kind of underwater overhauling device of hydraulic gate. BACKGROUND

[0002] Hydraulic gate is a kind of dam form commonly used in river, it has the gate of rotation connection on dam body and the supporting mechanism such as lifting cylinder supported in the back of gate control gate opening and closing.When the downstream water level of hydraulic gate is higher, supporting mechanism will be submerged in water, resulting in unable to overhaul maintenance to supporting mechanism.

[0003] At present, in order to overhaul maintenance to supporting mechanism in water, the usual practice is to set up cofferdam structure by sandbag, steel plate and other components, and enclose a maintenance space isolated from surrounding water body.This cofferdam structure is rigid structure, and its weir wall is vertically arranged, which is difficult to be arranged around supporting mechanism in the case of small space on the back of hydraulic gate or stepped structure of dam foundation, and if the cofferdam is set to half-enclosure and abuts against gate plate structure, there is sealing problem, which leads to the use limitation of existing cofferdam structure, causing the problems of difficult maintenance, high maintenance cost and the like of hydraulic gate. SUMMARY

[0004] The utility model solves the problem that it is difficult to set cofferdam structure on the back of hydraulic gate, and affects underwater overhauling maintenance, and provides a kind of underwater overhauling device of hydraulic gate.

[0005] The utility model adopts the technical scheme to solve the above technical problem: a kind of underwater overhauling device of hydraulic gate, including flexible water ring sleeve and support piece, the flexible water ring sleeve is used to surround the supporting mechanism on the back of hydraulic gate and separate it from surrounding water, the lower end of the flexible water ring sleeve is provided with the connecting end for sealing connection ground foundation;Flexible water ring sleeve can be contracted downward or stretched upward to expose water surface;The support piece is arranged inside or connected outside the flexible water ring sleeve, for supporting the flexible water ring sleeve after stretching upward, so that it can withstand the water pressure of surrounding.

[0006] The connecting end is sealingly fixed on ground foundation.

[0007] The connecting end is detachably connected with ground foundation, and bottom sealing element for sealing the connecting position of connecting end and ground foundation is arranged on connecting end or ground foundation.

[0008] The flexible water ring sleeve can be fixed on ground foundation through fixed connecting piece after being contracted downward.

[0009] The flexible water isolation ring is provided with an openable joint on one side, and the support mechanism can pass through the flexible water isolation ring through the joint, and an edge seal is arranged at the joint to seal the joint and the joint and the support structure.

[0010] The flexible water isolation ring is provided with an openable joint on one side, and the support mechanism can pass through the flexible water isolation ring through the joint, and an edge seal is arranged at the joint to seal the joint and the joint and the support structure.

[0011] The support mechanism comprises lateral supports for laterally supporting to bear water pressure and vertical supports for vertically supporting to maintain the height of the flexible water isolation ring, and the lateral supports and the vertical supports are arranged in an integrated structure or in a split structure.

[0012] The vertical supports are connected with the fixed interface arranged on the ground foundation.

[0013] A plurality of lateral supports are arranged along the length direction of the flexible water isolation ring at intervals, so that the flexible water isolation ring can be inclined in the horizontal direction by changing the relative positions between the lateral supports.

[0014] The support mechanism is a lifting oil cylinder or a support rod.

[0015] The flexible water isolation ring is used as the water retaining member surrounding the support mechanism, and can be retracted downward when not in use, and can be stretched upward to expose the water surface when maintenance is needed, and the flexible structure of the flexible water isolation ring can be inclined according to the direction of the support mechanism, and can adapt to the space change on the back of the hydraulic gate, and can be applied to the situation that the space on the back of the hydraulic gate is small and the structure is complex, and the problem that the hydraulic gate is not convenient for underwater maintenance is solved, and compared with the cofferdam with a rigid structure, the setting is more convenient, and the cost is lower. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a first embodiment schematic view of the underwater maintenance device for the hydraulic gate of the utility model.

[0017] Figure 2 is a second embodiment schematic view of the underwater maintenance device for the hydraulic gate of the utility model.

[0018] Figure 3 is an embodiment schematic view of the flexible water isolation ring and the support thereof of the utility model.

[0019] Figure 4 is another embodiment schematic view of the flexible water isolation ring and the support thereof of the utility model.

[0020] Marked in the figure: 1, hydraulic gate, 2, support mechanism, 3, ground foundation, 4, flexible water isolation sleeve, 401, connecting end, 402, joint, 403, edge sealing element, 404, interface, 405, interface sealing element, 5, support, 501, lateral support, 502, vertical support, 6, bottom sealing element, 7, downstream water level. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model is clearly and completely explained below in combination with the drawings and specific embodiments. The specific content listed in the following examples is not limited to the technical features necessary for the technical problems to be solved by the technical scheme recited in the claims. At the same time, the listed examples are only a part of the utility model, not all the examples.

[0022] As Figure 1 and 2 shown, the underwater maintenance device of the hydraulic gate of the utility model comprises a flexible water isolation sleeve 4 and a support 5. The flexible water isolation sleeve 4 is used for surrounding the support mechanism 2 at the back of the hydraulic gate 1 and is a main component for blocking the surrounding water, which can separate the support mechanism 2 from the surrounding water and enclose a maintenance area around the support mechanism 2. The support mechanism 2 is a lifting oil cylinder or a support rod. The lower end of the flexible water isolation sleeve 4 is a connecting end, which is used for sealingly connecting the ground foundation 3. The connecting end of the flexible water isolation sleeve 4 can be in a structure mode of being sealingly fixed on the ground foundation 3, for example, being pre-buried in the ground foundation. It can also be in a structure mode of being detachably connected with the ground foundation 3, and a bottom sealing element 6 is arranged at the connecting position of the sealingly connecting end and the ground foundation to sealingly connect them. The bottom sealing element 6 is arranged in a form as required, for example, a sealing ring or other elements fixed on the connecting end, which is fixed on the ground foundation by a bolt, a buckle or other fixing modes. The bottom sealing element 6 can also be arranged on the ground foundation, for example, a pressing plate or a pressing rod arranged on the ground foundation is used to fix the folded edge of the connecting end of the flexible water isolation sleeve 4. The specific fixing mode can be arranged in a suitable form as required, which is convenient for sealing connection.

[0023] The flexible water isolation sleeve 4 is in a flexible structure as a whole and can be contracted or stretched. When the hydraulic gate 1 is in normal use, the flexible water isolation sleeve 4 can be fixed on the ground foundation 3 by a buckle or a binding element after being contracted downward. When maintenance is needed, the flexible water isolation sleeve 4 can be stretched upward to expose the water surface. After the flexible water isolation sleeve 4 is supported and fixed by the support 5, the water in the surrounding area of the flexible water isolation sleeve 4 is pumped out, so that a space for personnel maintenance is formed around the support mechanism 2.

[0024] The support 5 can be arranged inside or outside the flexible water ring 4, and its structure is arranged as required to support the flexible water ring 4 after it is stretched upward, so that it can withstand the surrounding water pressure. Figure 1 As shown in the figure, when the water level downstream of the hydraulic gate is low, the flexible water ring 4 does not need to be too high, at this time, the support 5 can adopt the form of multiple support columns arranged along the circumference, and the lower end of the support 5 is connected with the ground foundation 3 to form a support structure that can withstand water pressure. The flexible water ring 4 is connected with the support 5 and is supported by the support 5. For example, the support 5 is arranged inside the flexible water ring 4, and the flexible water ring 4 abuts against the support 5, or the support 5 is arranged outside the flexible water ring 4 and is connected with the flexible water ring 4 through a connecting piece.

[0025] As shown in the figure, Figure 2 When the water level downstream of the hydraulic gate is high, the flexible water ring 4 needs to be stretched to a higher height to be exposed to the water surface. Since the lower part of the flexible water ring 4 surrounds the support mechanism 2, when the height of the flexible water ring 4 needs to be stretched upward to exceed the support mechanism 2, it will interfere with the support mechanism 2. Therefore, as shown in the figure, Figure 3

[0026] An openable joint 402 is arranged on one side of the flexible water ring 4, and the joint 402 is normally closed and sealed. When the joint is opened, the flexible water ring 4 can be stretched upward to pass over the support mechanism 2, so that the support mechanism 2 can pass through the flexible water ring 4 via the joint, that is, the lower part of the support mechanism 2 is located inside the surrounding area of the flexible water ring 4, and the upper part of the support mechanism 2 is located outside the surrounding area of the flexible water ring 4. An edge seal 403 is arranged at the joint 402 for sealing the joint and the joint with the support structure. The specific form of the edge seal 403 is arranged as required, for example, the sealing of the joint can adopt a crimping, bonding or other sealing structure, and the sealing of the joint with the support mechanism 2 adopts a binding or other sealing structure. Figure 3 In the structure shown in the figure, the joint 402 is arranged at the upper part of the flexible water ring 4, and the flexible water ring 4 is stretched upward to pass over the support mechanism 2. This structure is suitable for the mode that the flexible water ring 4 is installed around the support mechanism 2 in advance and is expanded for use when maintenance is required. Similarly, if the mode of temporarily installing and fixing the flexible water ring 4 during maintenance is adopted, the joint 402 can be arranged at the lower part of the flexible water ring 4.

[0027] In Figure 4 ​In the shown embodiment, the flexible water ring 4 is provided with an interface 404 on one side, which is used for the support mechanism 2 of the hydraulic gate to pass through the flexible water ring 4 when installed, so that the lower end of the support mechanism 2 can be connected to the ground foundation around the area of the flexible water ring 4, and the upper end can pass through the flexible water ring 4 and be connected to the hydraulic gate 1. When the flexible water ring 4 needs to be contracted downward, the interface 404 is moved downward along the support mechanism 2 until the flexible water ring 4 can be fixed to the ground foundation. Conversely, moving the interface 404 upward along the support mechanism 2 can achieve the extension of the flexible water ring 4 upward. An interface seal 405 is provided at the interface 404 to seal the gap between the interface and the support mechanism, for example, using a sealing structure such as a binding, a sealing ring, etc.

[0028] After the flexible water ring 4 is extended upward, it needs to withstand the inward pressure of the surrounding water body while also needing support to maintain its height. Correspondingly, the support 5 includes a lateral support 501 for providing lateral support to the flexible water ring 4 so that it can withstand water pressure, and a vertical support 502 for providing vertical support to the flexible water ring 4 to maintain the height of the flexible water ring 4. The lower end of the vertical support 502 is fixedly connected to the ground foundation, and this connection is detachable, or the vertical support 502 is laid down or lifted up by rotating through a connecting portion. A fixed interface can be provided on the ground foundation 3 to facilitate the connection of the vertical support 502, such as a socket structure for the insertion of the vertical support 502, etc.

[0029] The lateral support and the vertical support can be in an integrated structure, or in a separate structure. For example Figure 1 In the shown structure, the lateral support and the vertical support can be in an integrated structure, which is in the form of a plurality of support columns arranged inside the flexible water ring 4 and fixed to the ground foundation, the support columns being connected to the flexible water ring 4 as vertical supports of the flexible water ring 4. At the same time, the part of the support columns supporting the flexible water ring 4 in the horizontal direction serves as a lateral support.

[0030] Figure 3 In the shown embodiment, the vertical support 502 is in the form of a structure similar to a support column arranged outside the flexible water ring 4, with its lower end fixed to the ground foundation, for example, in the form of being inserted into a hole in the ground foundation. The flexible water ring 4 is connected to the lateral support 501 on the vertical support 502, and the lateral support 501 provides a pulling force to the side wall of the flexible water ring 4.

[0031] Figure 2 and 4In the shown structure, a plurality of lateral support members 501 are arranged at intervals along the length direction of the flexible water isolation ring 4. The lateral support member 501 has a support structure surrounding the area surrounded by the flexible water isolation ring 4, which can be an integral structure, such as a square or circular or other shaped support ring, or can be a square or circular or other structure capable of forming a surrounding area assembled by a plurality of components. The lateral support member 501 can be supported inside the flexible water isolation ring 4, or connected outside thereof, or can be embedded in the side wall of the flexible water isolation ring 4. The relative positions between the lateral support members 501 can be changed according to the direction in which the flexible water isolation ring 4 needs to extend upward, so that the flexible water isolation ring 4 can be inclined in the horizontal direction.

[0032] The vertical support member 502 can be arranged in sections, and the angle of different sections can be changed to adapt to the extension direction of the flexible water isolation ring 4. For example Figure 4 In the shown structure, the vertical support member 502 connects different sections between each adjacent lateral support member 501, and the connection angle between different sections and the corresponding lateral support member 501 can be adjusted as needed. The vertical support member 502 can also be a continuous support structure, such as Figure 1 The support of the flexible water isolation ring 4 with low height shown. Or in Figure 2 In the shown structure, the vertical support member can be changed to a continuous support structure from top to bottom, which is supported between the top end of the flexible water isolation ring 4 and the ground foundation. The extension shape of the vertical support member 502 does not necessarily need to match the extension direction of the flexible water isolation ring 4, but only needs to satisfy the support of the flexible water isolation ring 4 to maintain its height. In addition, the vertical support member can also be in the form of suspending the flexible water isolation ring 4 from above to support it. This suspension support structure can also be combined with the structure of supporting from below.

[0033] The above description of the specific embodiments is only used to help understand the technical concept and core idea of the present application, and although specific preferred embodiments are used to describe and explain the technical solutions in this paper, it should not be understood as a limitation of the present application itself. Those skilled in the art can make various changes in form and details without departing from the technical concept of the present application. These easily thought changes or replacements should be covered within the protection scope of the present application.

Claims

1. An underwater hydraulic gate inspection device, characterized in that: The invention relates to a flexible water isolation ring (4) and a support (5), the flexible water isolation ring (4) is used to surround the support mechanism (2) of the back of the hydraulic gate (1) and isolate it from the surrounding water, the lower end of the flexible water isolation ring (4) is provided with a connecting end (401) for sealingly connecting to the ground foundation (3); the flexible water isolation ring (4) can be contracted downward or extended upward to expose the water surface; the support (5) is arranged inside or connected outside the flexible water isolation ring (4) and is used to support the flexible water isolation ring (4) after it is extended upward so that it can withstand the surrounding water pressure.

2. An underwater hydraulic gate inspection device as claimed in claim 1, characterized in that: The connecting end (401) is sealingly fixed to the ground foundation (3).

3. An underwater hydraulic gate inspection device as claimed in claim 1, characterized in that: The connecting end (401) is detachably connected to the ground foundation (3) and is provided with a bottom sealing element (6) for sealing the connecting position of the connecting end and the ground foundation.

4. An underwater hydraulic gate inspection device as claimed in claim 2 or 3, characterized in that: The flexible water isolation ring (4) can be fixed to the ground foundation (3) through the fixed connecting element after being contracted downward.

5. An underwater hydraulic gate inspection apparatus as claimed in claim 1, characterized in that: One side of the flexible water isolation ring (4) is provided with an openable joint (402), the support mechanism (2) can pass through the flexible water isolation ring (4) through the joint when the joint is opened, and an edge sealing element (403) is arranged at the joint (402) for sealing the joint and the joint connection part of the support structure.

6. An underwater hydraulic gate inspection apparatus as claimed in claim 1, characterized in that: One side of the flexible water isolation ring (4) is provided with an interface (404) for the support mechanism (2) to pass through, and an interface sealing element (405) is arranged at the interface (404) for sealing the gap between the interface and the support mechanism.

7. An underwater hydraulic gate inspection apparatus as claimed in claim 1, characterized in that: The support (5) includes a lateral support (501) for laterally supporting to withstand water pressure and a vertical support (502) for vertically supporting to maintain the height of the flexible water isolation ring (4), and the lateral support and the vertical support are arranged in an integrated structure or a split structure.

8. An underwater hydraulic gate inspection device as claimed in claim 7, characterized in that: The vertical support (502) is connected to the fixed interface arranged on the ground foundation (3).

9. An underwater hydraulic gate inspection apparatus as claimed in claim 7, characterized in that: A plurality of lateral supports (501) are arranged at intervals along the extension length direction of the flexible water isolation ring (4), so that the flexible water isolation ring (4) can be inclined in the horizontal direction by changing the relative positions between the lateral supports (501).

10. An underwater hydraulic gate inspection device according to any one of claims 5 to 9, characterised in that: The support mechanism (2) is a lifting oil cylinder or a support rod.

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