Rotating hinge water seal structure of low-water-head down-the-hole radial gate

Abstract

The utility model relates to a rotating hinge water seal structure of a low-water-head down-the-hole type radial gate. The method is suitable for the technical field of water conservancy and hydropower engineering. The technical problem to be solved by the utility model is to provide the rotating hinge water seal structure of the low-water-head down-the-hole radial gate. According to the technical scheme, the rotating hinge water seal structure of the low-water-head down-the-hole type radial gate comprises a water seal base plate welded to a lintel of the radial gate through a plurality of rib plates; the water seal rubber comprises a clamping part and a water seal round head, the water seal round head is arranged at the end of the clamping part, the water seal round head can abut against a panel of the radial gate, and the length L from the clamping part to the water seal round head in the horizontal direction is matched with the distance from the lintel to the panel of the radial gate; the water seal pressing plate is matched with the water seal base plate to clamp the water seal rubber, and the water seal base plate, the water seal rubber and the water seal pressing plate are connected through bolts.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy and hydropower engineering, and in particular to a hinged water seal structure for a low-head submerged arc gate. Background Technology

[0002] Arc-shaped gates are an important component of hydraulic engineering structures, frequently used as working gates in water diversion channels, spillways, and dams, serving as crucial flood discharge facilities. For submerged arc-shaped gates, in addition to bottom, side, and top water seals, a pivot water seal is also installed on the lintel of the gate slot embedded parts. During operation, when the arc-shaped gate is opened or closed, the top water seal detaches from the water-stopping surface on the lintel, preventing water from jetting through the gaps.

[0003] Currently, the hinge water seal structure of most submersible arc gates is quite complex, such as... Figure 1 As shown, this hinged water seal structure consists of a hinged water seal seat, a leaf spring, a water seal rubber (rounded L-shaped), a water seal pressure plate, and a water stop plate, all assembled together using bolts. The problem with the above-mentioned hinged water seal structure is:

[0004] For some low-head submerged arc gates, the distance between the lintel surface and the arc gate is small, while the horizontal distance from the lintel surface to the outer edge of the hinge water seal in the hinge water seal structure is large, and the length of this horizontal section cannot be further compressed, making the aforementioned hinge water seal structure unsuitable for low-head submerged arc gates. Utility Model Content

[0005] The technical problem to be solved by this utility model is: to provide a hinged water seal structure for a low-head submersible arc gate in view of the above-mentioned problems.

[0006] The technical solution adopted in this utility model is: a hinged water seal structure for a low-head submersible arc gate, comprising:

[0007] The water seal plate is welded to the lintel of the arc-shaped gate by multiple stiffeners;

[0008] A water-sealed rubber includes a clamping part and a water-sealed round head. The water-sealed round head is located at the end of the clamping part and can abut against the panel of an arc-shaped gate. The horizontal length L from the clamping part to the water-sealed round head is adapted to the distance between the lintel and the panel of the arc-shaped gate.

[0009] A water seal pressure plate, which cooperates with the water seal seat plate to clamp the water seal rubber, and the water seal seat plate, the water seal rubber and the water seal pressure plate are connected by bolts.

[0010] By the above technical means, the water seal base plate, the water seal rubber and the water seal pressing plate are connected through bolts to form a simple rotary hinge water seal structure, the water seal rubber head in the water seal rubber abuts against the arc-shaped gate to realize the water seal effect, the horizontal length L of the clamping part to the water seal head is adjusted, the horizontal length L is matched with the distance between the lintel and the arc-shaped gate panel, and thus the condition that the horizontal distance between the surface of the lintel and the arc-shaped gate panel is small in the low-head submerged arc-shaped gate is adapted.

[0011] In some embodiments, the water seal head has at least a partial pre-compression amount Δt.

[0012] In some embodiments, the water seal rubber adopts an outer R corner L-shaped structure.

[0013] In some embodiments, the surface of the water seal head abutting against the arc-shaped gate is provided with a PTFE coating.

[0014] The utility model discloses the beneficial effects are:

[0015] 1、 through the bolt connection of water seal base plate, water seal rubber and water seal pressing plate, form simple rotary hinge water seal structure, utilize the water seal rubber head in water seal rubber and abut against the panel of arc-shaped gate, and the water seal head has certain pre-compression amount, to improve the effect of preventing water, the horizontal length L of clamping part to water seal head is matched with the distance between lintel and arc-shaped gate panel, and the structure is compared to the horizontal length L of traditional rotary hinge water seal structure greatly reduces rotary hinge water seal structure, to adapt to the condition that the horizontal distance between the surface of the lintel and the outer edge of the arc-shaped gate panel is small in the low-head submerged arc-shaped gate, and the structure is simple in form, and the manufacturing and installation mode are simple, and the applicability is stronger. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the arrangement form schematic diagram of traditional rotary hinge water seal structure.

[0017] Figure 2 It is the arrangement form schematic diagram of the application.

[0018] Figure 3 It is the structure schematic diagram of the application.

[0019] BRIEF DESCRIPTION OF DRAWINGS

[0020] 1, lintel, 2, top water seal device, 3, panel, 4, rotary hinge water seal structure, 401, water seal rubber, 402, water seal base plate, 403, water seal pressing plate.

[0021] This specification includes reference to "one embodiment" or "an embodiment". The occurrence of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. Particular features, structures, or characteristics can be combined in any suitable way.

[0022] The term "comprising" is open-ended. As used in the appended claims, this term does not foreclose additional structure or steps. The term "comprising" is to be construed in the manner set forth in the section entitled "Open and Close Transition Terms" in the appended claims. DETAILED DESCRIPTION

[0023] In order to make the technical personnel in the technical field better understand the technical scheme of the present application, the technical scheme of the present application will be further described below in combination with specific embodiments.

[0024] In some overseas engineering projects, it is necessary to apply a downhole type arc gate as a working gate, but due to the fact that the civil structure has been basically determined, it is difficult to make large adjustments. In this case, the downhole type arc gate with a small orifice and low water head is arranged. For the downhole type arc gate with a small orifice and low water head, the horizontal distance from the surface of the lintel 1 to the outer edge of the arc gate panel 3 is relatively small, and the rotating hinge water seal structure 4 used by the traditional large orifice and high water head arc gate is relatively complex, and the length of the horizontal section cannot be further compressed, which leads to the fact that it cannot be used in the downhole type arc gate with a small orifice and low water head.

[0025] In combination with Figure 2 With Figure 3 As shown in the figure, the embodiment is a rotating hinge water seal structure of a low water head downhole type arc gate, which is suitable for an arc gate with a small water head and a small orifice. A top water seal device 2 and a rotating hinge water seal structure 4 are arranged between the lintel 1 and the panel 3 of the arc gate. The top water seal device 2 is located above the rotating hinge water seal structure 4. The rotating hinge water seal structure 4 includes a water seal base plate 402, a water seal rubber 401, and a water seal pressing plate 403. The water seal rubber 401 includes a clamping portion and a water seal round head. The water seal base plate 402 is fixed on the lintel 1 by welding a plurality of rib plates, which can enhance the rigidity and strength of the water seal base plate 402. The end of the clamping portion towards the panel 3 of the arc gate is provided with a water seal round head, which can abut against the panel 3 of the arc gate. The horizontal length L from the clamping portion to the water seal round head is matched with the distance from the lintel 1 to the panel 3 of the arc gate. The water seal pressing plate 403 and the water seal base plate 402 clamp the water seal rubber 401. The water seal base plate 402, the water seal rubber 401, and the water seal pressing plate 403 are all provided with screw holes and connected by bolts.

[0026] In some embodiments, the water seal rubber 401 in the embodiment adopts an outer R corner L type structure. The selection principles of the water seal rubber 401 include: (1) the vertical length H from the clamping portion to the water seal round head is relatively small, and the diameter D of the water seal round head is relatively large, so as to improve the rigidity of the free end of the L type water seal and prevent the free end from being broken or turned over under the action of water pressure; (2) the horizontal length L from the clamping portion to the water seal round head is relatively small, so as to meet the arrangement requirements in the case that the horizontal distance length W from the surface of the lintel 1 to the outer edge of the arc gate panel 3 is small.

[0027] Further, the hinge water seal structure 4 should be designed and arranged in advance to ensure that the water seal round head has at least a partial pre-compression amount Δt in the closed state of the gate, so as to improve the water-proof effect.

[0028] Further, the surface of the water seal round head abutting against the arc-shaped gate is provided with a PTFE coating, so as to reduce the friction coefficient of the friction surface between the arc-shaped gate panel 3 and the hinge water seal structure 4, thereby reducing the friction therebetween and protecting the water seal rubber 401.

[0029] The implementation principle of the hinge water seal structure of the low-head subsurface arc-shaped gate in the embodiment is as follows:

[0030] The conventional hinge water seal structure has high difficulty in manufacturing and installation, and is prone to be broken in actual operation, and has high difficulty in installation and debugging, and it is difficult to adjust to a proper angle, and if the angle is improper, the conventional hinge water seal structure is prone to be broken.

[0031] In the structure, the water seal base plate 402, the water seal rubber 401 and the water seal pressing plate 403 are bolted to form a simple hinge water seal structure 4, the length of the horizontal section of the water seal rubber 401 can be flexibly adjusted according to the actual situation of the small orifice and low-head subsurface arc-shaped gate, so that the length of the horizontal section of the water seal rubber 401 is adapted to the distance from the surface of the lintel 1 to the outer edge of the arc-shaped gate panel 3, the implementation method is simple, the requirement for the fitting precision is much smaller than that of the conventional hinge water seal structure 4, the processing difficulty is small, and the manpower and material resources are greatly saved, and the manufacturing and installation period of the arc-shaped gate is shortened.

[0032] The above are the preferred embodiments of the utility model, and do not limit the protection scope of the utility model, so that: all equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A low head submerged arc gate with a rotating hinge water seal structure, characterized in that, The utility model relates to an arc gate water seal structure, comprising: a water seal base plate (402) welded to the lintel (1) of the arc gate through a plurality of webs; a water seal rubber (401) comprising a clamping portion and a water seal head, the water seal head being arranged at the end of the clamping portion, the water seal head being capable of abutting against the face plate (3) of the arc gate, the horizontal length L of the clamping portion to the water seal head being matched with the distance between the lintel (1) and the face plate (3) of the arc gate; a water seal pressing plate (403) cooperating with the water seal base plate (402) to clamp the water seal rubber (401), the water seal base plate (402), the water seal rubber (401) and the water seal pressing plate (403) being connected through bolts.

2. The hinge seal structure of a low-head submerged arc gate according to claim 1, characterized in that: The water seal head has at least a partial pre-compression amount Δt.

3. The hinge seal structure of a low-head submerged arc gate according to claim 1, characterized in that: The water seal rubber (401) adopts an outer R corner L type structure.

4. The pivoting water seal structure of a low-head submerged arc gate according to claim 1, characterized in that: The surface of the water seal head abutting against the arc gate is provided with a PTFE coating.

Images