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 invention relates to a hydraulic gate maintenance device, in particular to an underwater hydraulic gate maintenance device. Background Art

[0002] Hydraulic gates are a common type of dam in rivers. They have a gate that is rotatably connected to the dam body and a supporting mechanism such as a lifting cylinder supported on the back of the gate to control the opening and closing of the gate. When the water level downstream of the hydraulic gate is high, the supporting mechanism will be submerged in water, making it impossible to inspect and maintain the supporting mechanism.

[0003] At present, in order to inspect and maintain the supporting mechanism in the water, the common practice is to set up a cofferdam structure constructed of sandbags, steel plates and other components to enclose a maintenance space that is isolated from the surrounding water body. This cofferdam structure is a rigid structure with a vertical wall. If the space behind the hydraulic gate is small or the dam foundation has steps and other structures, this cofferdam structure is difficult to set around the supporting mechanism. If the cofferdam is set to semi-enclose and dock with the gate plate, there will be sealing problems, resulting in restrictions on the use of the existing cofferdam structure, causing problems such as difficulty in repairing the hydraulic gate and high repair costs. Summary of the invention

[0004] The present invention aims to solve the problem that it is difficult to set up a retaining structure on the back of a hydraulic gate, which affects underwater inspection and maintenance, and provides an underwater inspection and maintenance device for a hydraulic gate.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a hydraulic gate underwater maintenance device, including a flexible waterproof ring and a support member, the flexible waterproof ring is used to surround the supporting mechanism on the back of the hydraulic gate and isolate it from the surrounding water, and the lower end of the flexible waterproof ring is provided with a connection end for sealingly connecting to the ground foundation; the flexible waterproof ring can shrink downward or stretch upward to expose the water surface; the support member is arranged inside the flexible waterproof ring or connected to the outside of the flexible waterproof ring, and is used to support the flexible waterproof ring after it is stretched upward so that it can withstand the surrounding water pressure.

[0006] The connecting end is sealed and fixed on the ground foundation.

[0007] The connecting end is detachably connected to the ground foundation, and a bottom sealing member for sealing the connection position between the connecting end and the ground foundation is provided on the connecting end or the ground foundation.

[0008] The flexible waterproof ring sleeve can be fixed on the ground foundation via a fixed connection piece after shrinking downward.

[0009] An openable seam is provided on one side of the flexible waterproof ring sleeve. When the seam is opened, the supporting mechanism can pass through the flexible waterproof ring sleeve through the seam. An edge seal for closing the seam and the joint between the seam and the supporting structure is provided at the seam.

[0010] An interface for the support mechanism to pass through is provided on one side of the flexible waterproof ring sleeve, and an interface sealing member for closing the gap between the interface and the support mechanism is provided at the interface.

[0011] The support members include lateral support members for lateral support to withstand water pressure and vertical support members for vertical support to maintain the height of the flexible waterproof ring sleeve. The lateral support members and the vertical support members adopt an integrated structure or a separate arrangement.

[0012] The vertical support member is connected to a fixed interface arranged on the ground foundation.

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

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

[0015] The beneficial effects of the present invention are as follows: a flexible waterproof ring sleeve is adopted as a water retaining member surrounding the supporting mechanism, which can be retracted downward when not in use, and can be extended upward and exposed to the water surface when inspection and maintenance are required. Moreover, the flexible structure of the flexible waterproof ring sleeve enables it to deflect according to the direction of the supporting mechanism and adapt to the changes in the back space of the hydraulic gate. It is suitable for situations where the back space of the hydraulic gate is small and the structure is complex, thus solving the problem that the hydraulic gate is inconvenient for underwater inspection and maintenance. Moreover, compared with the cofferdam with rigid structure, it is more convenient to set up and has lower cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a first embodiment of the arrangement of the underwater maintenance device for a hydraulic gate according to the present invention.

[0017] Figure 2 It is a schematic diagram of a second embodiment of the arrangement of the underwater maintenance device for a hydraulic gate according to the present invention.

[0018] Figure 3 It is a schematic diagram of an embodiment of the flexible water-isolating ring sleeve and its supporting member of the present invention.

[0019] Figure 4 It is a schematic diagram of another embodiment of the flexible water-isolating ring sleeve and its supporting member of the present invention.

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

[0021] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings and specific implementation methods. The specific contents listed in the following embodiments are not limited to the technical features necessary for the technical problems to be solved by the technical solutions recorded in the claims. At the same time, the enumerated embodiments are only part of the present invention, not all embodiments.

[0022] like Figure 1 and 2 As shown, the underwater maintenance device of the hydraulic gate of the present invention includes a flexible waterproof ring sleeve 4 and a support member 5. The flexible waterproof ring sleeve 4 is used to surround the support mechanism 2 on the back of the hydraulic gate 1. It is the main component for blocking the surrounding water body. It 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 cylinder or a support rod. The lower end of the flexible waterproof ring sleeve 4 is a connecting end, which is used to seal and connect the ground foundation 3. The connecting end of the flexible waterproof ring sleeve 4 can adopt a structural method of sealing and fixing on the ground foundation 3, such as pre-buried in the ground foundation. It can also adopt a structural method of detachably connecting with the ground foundation 3, and a bottom seal 6 is set at the connection position between the sealed connecting end and the ground foundation to seal and connect them. The form of the bottom seal 6 is set as needed, and it can be set at the connecting end of the flexible waterproof ring sleeve 4, such as a sealing ring and other components fixed to the connecting end, fixed to the ground foundation by bolts, buckles and other fixing methods. The bottom seal 6 can also be arranged on the ground foundation, for example, a pressure plate, a pressure rod and other structures arranged on the ground foundation are used to fix the folded edge of the connection end of the flexible waterproof ring sleeve 4. The specific fixing method can be set in a suitable form according to the needs to facilitate the sealing connection.

[0023] The flexible waterproof ring 4 is a flexible structure as a whole, and can be retracted or extended. When the hydraulic gate 1 is in normal use, the flexible waterproof ring 4 can be retracted downward and fixed to the ground foundation 3 by a fixed connector in the form of a buckle or binding. When inspection and maintenance are required, the flexible waterproof ring 4 can be extended upward to the surface of the water. After the flexible waterproof ring 4 is supported and fixed by the support member 5, the water in the area surrounded by the flexible waterproof ring 4 is pumped out, and a space for personnel inspection can be formed around the support mechanism 2.

[0024] The support member 5 can be arranged inside the flexible waterproof ring 4 or connected to the outside thereof. Its structure can be set as required to support the flexible waterproof ring 4 after it stretches upward so that it can withstand the surrounding water pressure. Figure 1 As shown, when the water level downstream of the hydraulic gate is low, the flexible water-blocking ring 4 does not need to be too high. At this time, the support member 5 can be in the form of multiple support columns arranged along the circumference, and the lower end of the support member 5 is connected to the ground foundation 3 to form a support structure that can withstand water pressure. The flexible water-blocking ring 4 is connected to the support member 5 and supported by the support member 5. For example, the support member 5 is set inside the flexible water-blocking ring 4, and the flexible water-blocking ring 4 is against the support member 5, or the support member 5 is set outside the flexible water-blocking ring 4 and connected to the flexible water-blocking ring 4 through a connector.

[0025] like Figure 2 As shown in FIG. 1 , when the water level downstream of the hydraulic gate is high, the flexible water-blocking ring 4 needs to be stretched to a higher height to emerge from the water surface. Since the lower part of the flexible water-blocking ring 4 surrounds the support mechanism 2, when the height of the flexible water-blocking ring 4 stretched upward needs to exceed the support mechanism 2, it will interfere with the support mechanism 2. To this end, it can be as follows Figure 3 As shown, An openable seam 402 is provided on one side of the flexible waterproof ring 4, and the seam 402 is usually closed and sealed. When the seam is opened, the flexible waterproof ring 4 can extend upward over the support mechanism 2, so that the support mechanism 2 can pass through the flexible waterproof ring 4 through the seam, that is, the lower part of the support mechanism 2 is located on the inner side of the area surrounded by the flexible waterproof ring 4, and the upper part of the support mechanism 2 is located on the outer side of the area surrounded by the flexible waterproof ring 4. An edge seal 403 for sealing the seam and the joint between the seam and the support structure is provided at the seam 402. The specific form of the edge seal 403 is set as required, for example, the closure of the seam can adopt a sealing structure such as crimping and bonding, and the closure of the joint between the seam and the support mechanism 2 can adopt a sealing structure such as binding. Figure 3 In the structure shown, the joint 402 is arranged on the upper part of the flexible waterproof ring 4, and the flexible waterproof ring 4 passes over the support mechanism 2 when it stretches upward. This structure is suitable for the flexible waterproof ring 4 to be installed around the support mechanism 2 in advance and deployed for use when maintenance is required. Similarly, if the flexible waterproof ring 4 is temporarily installed and fixed during maintenance, the joint 402 can be arranged at the lower part of the flexible waterproof ring 4.

[0026] exist Figure 4In the illustrated embodiment, an interface 404 is provided on one side of the flexible waterproof ring 4, and the interface 404 is for the support mechanism 2 of the hydraulic gate to pass through the flexible waterproof ring 4 when it is installed, so that the lower end of the support mechanism 2 can be connected to the ground foundation of the area surrounded by the flexible waterproof ring 4, and the upper end can pass through the flexible waterproof ring 4 to connect with the hydraulic gate 1. When the flexible waterproof ring 4 needs to be retracted downward, the position of the interface 404 is moved downward along the support mechanism 2 until the flexible waterproof ring 4 can be fixed on the ground foundation. Conversely, the position of the interface 404 is moved upward along the support mechanism 2 to achieve the upward extension of the flexible waterproof ring 4. An interface seal 405 for closing the gap between the interface and the support mechanism is provided at the interface 404, for example, a sealing structure such as a binding or a sealing ring is used.

[0027] After stretching upward, the flexible waterproof ring 4 needs to withstand the inward pressure of the surrounding water body, and also needs to have a supporting force to maintain its height. Correspondingly, the support member 5 includes a lateral support member 501 and a vertical support member 502. The lateral support member 501 is used to provide lateral support to the flexible waterproof ring 4 so that it can withstand water pressure. The vertical support member 502 is used to provide vertical support to the flexible waterproof ring 4 to maintain the height of the flexible waterproof ring 4. The lower end of the vertical support member 502 is fixedly connected to the ground foundation, and the connection method is detachable, or the vertical support member 502 can be laid down or lifted by rotating the connecting part. A fixed interface for facilitating the connection of the vertical support member 502 can be set on the ground foundation 3, such as a socket for inserting the vertical support member 502.

[0028] The lateral support members and the vertical support members may be of an integrated structure or may be arranged separately. Figure 1 In the structure shown, the lateral support members and the vertical support members can adopt an integrated structure, which is in the form of a plurality of support columns fixed on the ground foundation and arranged inside the flexible waterproof ring 4. The support columns are connected to the flexible waterproof ring 4 and serve as vertical support members of the flexible waterproof ring 4. At the same time, the part of the support column that supports the flexible waterproof ring 4 in the horizontal direction serves as a lateral support member.

[0029] Figure 3 In the illustrated embodiment, the vertical support member 502 is a support column-like structure disposed outside the flexible waterproof ring 4, and its lower end is fixed to the ground foundation, for example, it can be fixed by inserting into a hole in the ground foundation. The flexible waterproof ring 4 is connected to the lateral support member 501 on the vertical support member 502, and the lateral support member 501 provides tension to the side wall of the flexible waterproof ring 4.

[0030] Figure 2 and 4In the structure shown, a plurality of lateral support members 501 are arranged at intervals along the extending length direction of the flexible waterproof ring 4. The lateral support members 501 have a supporting structure surrounding the area enclosed by the flexible waterproof ring 4, which can be an integral structure, such as a square, circular or other shaped support ring, or a square, circular or other structure that can form a surrounding area composed of multiple components. The lateral support members 501 can be supported on the inner side of the flexible waterproof ring 4, or connected to its outer side, or buried in the side wall of the flexible waterproof ring 4. The relative positions between the lateral support members 501 can be changed according to the direction in which the flexible waterproof ring 4 needs to extend upward, so that the flexible waterproof ring 4 can be deflected in the horizontal direction.

[0031] The vertical support member 502 can be arranged in sections, and the angles of different sections can be changed to adapt to the extension direction of the flexible waterproof ring 4. Figure 4 In the structure shown, each adjacent lateral support member 501 is connected by different sections of the vertical support member 502, 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 adopt a continuous support structure, for example Figure 1 The flexible waterproof ring 4 shown in the figure is supported when the height is relatively low. Figure 2 In the structure shown, its vertical support member can be changed into a vertically continuous support structure, so that it is supported between the top of the flexible waterproof ring 4 and the ground foundation. The extension shape of the vertical support member 502 does not necessarily need to coincide with the extension direction of the flexible waterproof ring 4, but only needs to support the flexible waterproof ring 4 to maintain its height. In addition, the vertical support member can also be in the form of suspending the flexible waterproof ring 4 from above to support it, and this suspension support structure can also be combined with a structure supporting from below.

[0032] The above description of the specific implementation mode is only used to help understand the technical concept and core idea of ​​the present invention. Although the technical solution is described and illustrated using a specific preferred embodiment, it should not be understood as a limitation of the present invention itself. Those skilled in the art may make various changes in form and details without departing from the technical concept of the present invention. These easily conceived changes or substitutions should all be included in the protection scope of the present invention.

Claims

1. A hydraulic gate underwater maintenance device, characterized in that: The invention comprises a flexible waterproof ring (4) and a support member (5), wherein the flexible waterproof ring (4) is used to surround a support mechanism (2) on the back of a hydraulic gate (1) and isolate it from the surrounding water, and the lower end of the flexible waterproof ring (4) is provided with a connection end (401) for sealingly connecting to a ground foundation (3); the flexible waterproof ring (4) can be retracted downward or stretched upward to be exposed above the water surface; the support member (5) is arranged inside the flexible waterproof ring (4) or connected to the outside thereof, and is used to support the flexible waterproof ring (4) after it is stretched upward, so that it can withstand the surrounding water pressure.

2. The underwater maintenance device for a hydraulic gate according to claim 1, characterized in that: The connecting end (401) is sealed and fixed on the ground foundation (3).

3. The underwater maintenance device for a hydraulic gate according to claim 1, characterized in that: The connecting end (401) is detachably connected to the ground foundation (3), and a bottom sealing member (6) for sealing the connection position between the connecting end and the ground foundation is provided on the connecting end or the ground foundation.

4. A hydraulic gate underwater maintenance device as claimed in claim 2 or 3, characterized in that: After the flexible waterproof ring sleeve (4) is contracted downward, it can be fixed on the ground foundation (3) via a fixed connection piece.

5. The underwater maintenance device for a hydraulic gate according to claim 1, characterized in that: An openable seam (402) is provided on one side of the flexible waterproof ring sleeve (4), and when the seam is opened, the support mechanism (2) can pass through the flexible waterproof ring sleeve (4) via the seam. An edge seal (403) for closing the seam and the joint between the seam and the support structure is provided at the seam (402).

6. The underwater maintenance device for a hydraulic gate according to claim 1, characterized in that: An interface (404) for the support mechanism (2) to pass through is provided on one side of the flexible waterproof ring sleeve (4), and an interface seal (405) for closing a gap between the interface and the support mechanism is provided at the interface (404).

7. The underwater maintenance device for a hydraulic gate according to claim 1, characterized in that: The support member (5) comprises a lateral support member (501) for lateral support to withstand water pressure and a vertical support member (502) for vertical support to maintain the height of the flexible waterproof ring sleeve (4). The lateral support member and the vertical support member are of an integral structure or are arranged separately.

8. The underwater maintenance device for a hydraulic gate according to claim 7, characterized in that: The vertical support member (502) is connected to a fixed interface provided on the ground foundation (3).

9. The underwater maintenance device for a hydraulic gate according to claim 7, characterized in that: A plurality of lateral support members (501) are arranged at intervals along the extending length direction of the flexible waterproof ring (4), so that the flexible waterproof ring (4) can be deflected in the horizontal direction by changing the relative positions between the lateral support members (501).

10. An underwater maintenance device for a hydraulic gate according to any one of claims 5 to 9, characterized in that: The supporting mechanism (2) is a lifting cylinder or a supporting rod.

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