Water stop device of bottom shaft rotating type steel gate

Abstract

The invention provides a water stop device of a bottom shaft rotating type steel gate. The water stop device comprises a gate assembly, a bottom shaft, a driving device and a water stop matching device. The gate assembly comprises a gate body, the water stop matching device is fixed to a river channel bottom sill, and the bottom shaft penetrates through the water stop matching device and can rotate around a rotating center relative to the water stop matching device. The bottom shaft is located at the bottom of the door body, and the driving device drives the bottom shaft to rotate so as to drive the door body to rotate from a lying-down state to a standing-door state in the first rotating direction. The water stop matching device comprises an arc-shaped datum plane corresponding to the rotating area of the gate assembly and a protruding part corresponding to the rotating area of the gate assembly, and the distance between the upper surface of the protruding part and the rotating center is larger than the distance between the arc-shaped datum plane and the rotating center. When the gate assembly rotates to the protruding part in the first rotating direction, the gate assembly makes contact with the protruding part to stop water. According to the sealing structure, the sealing and water stopping effect of the first sealing piece is matched with the water stopping requirement when the door body is located at different positions, and the service life of the first sealing piece is prolonged on the premise that the water stopping effect is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy projects, and in particular to a water-stopping device for a bottom-shaft rotary steel gate. Background Art

[0002] As my country continues to intensify its efforts in urban water use, landscape construction, environmental improvement, irrigation, flood control and drainage, various water conservancy gates have been widely used in these projects. Among these water conservancy gates, steel dam gates, also known as bottom-axis rotary steel gates, offer a variety of advantages, including adaptability to wide river channels, simple structure, the elimination of intermediate piers, saving civil engineering investment, the ability to close the gates for water storage and open them for flood control and drainage, the ability to use the gate tops for normal flow, creating artificial waterfalls, and the ability to adjust the water retention height. These advantages have led to their high market value.

[0003] The existing bottom-shaft rotary steel gate has a bottom shaft installed at the bottom of the gate body and mounted on a fixture at the bottom sill of the river. The bottom shaft is driven by a driving device to rotate, which drives the gate body to rotate, thereby achieving the function of standing up to block water or lying down to release water. There is a gap between the gate body and the fixture, so when the gate body is standing up to block water, a seal is required to stop water flow, but when the gate body is lying down to release water, no seal is required to stop water flow. A conventional measure to address this is to install a water-stop rubber at the bottom of the gate body, and the compression of the water-stop rubber remains relatively constant during the movement of the gate body. Its drawbacks are: first, when the gate body does not need to block water, the water-stop rubber is still compressed, which affects its service life; second, if the water-stop rubber is compressed too much, its service life will be reduced, and the water-stop rubber will flip during the joint operation, affecting the water-stop effect. If the water-stop rubber is compressed too little, a gap is easily formed, resulting in water leakage or the entrapment of debris.

[0004] In summary, there is an urgent need in this field to design a new type of water-stopping device for bottom-axis rotary gates to ensure that the bottom area of the gate body has good sealing performance and the water-stopping device has a long service life. Summary of the Invention

[0005] In response to the defects in the prior art, the purpose of the present invention is to provide a water-stopping device for a bottom-axis rotary steel gate. When the gate assembly is in a position where water-stopping is not required, there is no water-stopping between the gate assembly and the water-stopping matching device; when the gate assembly moves to a position where water-stopping is required, the gate assembly and the water-stopping matching device are in contact to stop water.

[0006] The water-stop device for a bottom-shaft rotary steel gate provided by the present invention comprises a gate assembly, a bottom shaft, a driving device and a water-stop matching device;

[0007] The gate assembly includes a gate body, the water-stopping device is fixed to the sill of the river channel, the bottom shaft passes through the water-stopping device, and the bottom shaft can rotate around the rotation center relative to the water-stopping device; the bottom shaft is located at the bottom of the gate body, and the driving device drives the bottom shaft to rotate, thereby driving the gate body to rotate along the first rotation direction from a lying state to an upright state;

[0008] The water-stopping matching device includes an arc-shaped reference surface corresponding to the rotation area of the gate assembly, and a raised portion corresponding to the rotation area of the gate assembly. The distance from the upper surface of the raised portion to the rotation center is greater than the distance from the arc-shaped reference surface to the rotation center. When the gate assembly rotates to the raised portion along the first rotation direction, the gate assembly contacts the raised portion to stop water.

[0009] Preferably, the raised portion and the water-stopping fitting are integrally formed.

[0010] Preferably, the protrusion is fixedly connected to the water-stop fitting device.

[0011] Preferably, the distance from the entire upper surface or a part of the upper surface of the protrusion to the rotation center gradually increases along the first rotation direction.

[0012] Preferably, the distance from the entire upper surface or a portion of the upper surface of the protrusion to the rotation center remains stable along the first rotation direction.

[0013] Preferably, the raised portion is made of rubber, and when the gate assembly moves to the raised portion, the raised portion is gradually compressed.

[0014] Preferably, when the gate assembly is rotated to the upright state, the gate assembly and the protrusion abut against each other.

[0015] Preferably, the gate assembly further comprises a water stopper provided at the bottom of the gate body, and when the gate assembly rotates to the raised portion along the first rotation direction, the water stopper contacts the raised portion to stop water.

[0016] Preferably, side water-stopping portions are provided on both side surfaces of the water-stopping fitting device, and the side water-stopping portions are arranged corresponding to the raised portions.

[0017] Preferably, a gate opening and closing machine room is provided on the side of the door body rotation center, the driving device is arranged in the gate opening and closing machine room, the bottom shaft rotation center extends into the gate opening and closing machine room, a crank arm is fixedly provided on the bottom shaft rotation center, the driving device is connected to the crank arm, and the driving device drives the crank arm to rotate, thereby driving the bottom shaft rotation center to rotate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The water-stop device for the bottom-axis rotary steel gate provided by the present invention has the following characteristics: when the gate assembly is in a position where water-stopping is not required, the water-stop component is not compressed; when the gate assembly is in a position where water-stopping is required, such as the vertical gate position, the water-stop component has a large compression amount, that is, the sealing and water-stopping effect of the water-stop component matches the water-stopping requirements when the gate assembly is in different positions, thereby improving the service life of the water-stop component while ensuring the water-stopping effect.

[0020] 2. The water-stop device for the bottom-axis rotary steel gate provided by the present invention changes the distance from part of the upper surface of the raised portion to the rotation center, while maintaining a stable distance from part of the upper surface to the rotation center. As a result, the water-stop can be continuously compressed during the upward rotation of the gate body. At the same time, the structural design also avoids the water-stop from flipping over, thereby ensuring the sealing performance while improving the service life of the water-stop. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the gate in the first embodiment;

[0023] Figure 2 Schematic diagram of the structure of the gate in the first state in the first embodiment;

[0024] Figure 3 for Figure 2 Schematic diagram of the local structure;

[0025] Figure 4 Schematic diagram of the structure of the gate in the second state in the first embodiment;

[0026] Figure 5 for Figure 4 Schematic diagram of the local structure;

[0027] Figure 6 This is a schematic structural diagram of the gate in the first embodiment in the upright state;

[0028] Figure 7 for Figure 6 Schematic diagram of the local structure;

[0029] Figure 8 Schematic diagram of the structure of the water-stopping device in the first embodiment;

[0030] Figure 9 Schematic diagram of the gate structure in the second embodiment;

[0031] Figure 10 for Figure 9 Schematic diagram of the local structure;

[0032] Figure 11 It is a schematic diagram of the local structure of the gate in the third embodiment.

[0033] The figure shows:

[0034] 1-Gate assembly

[0035] 11-Door

[0036] 12-Waterstop parts

[0037] 2-Bottom shaft

[0038] 3-Water-stopping device

[0039] 31-Arc datum surface

[0040] 32-protrusion

[0041] 33-Side water stop

[0042] 4- Center of rotation;

[0043] 5-water stop parts;

[0044] A-first rotation direction;

[0045] B-second rotation direction;

[0046] C - distance from the upper surface of the protrusion to the center of rotation;

[0047] D-The distance from the center of rotation of the arc reference surface. DETAILED DESCRIPTION

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0050] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined or explained in subsequent figures. In addition, all directional indications in this application (such as up, down, left, right, front, back, bottom...) are only used to explain the relative position relationship, movement, etc. between the components under a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the descriptions of "first", "second", etc. in the application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features.

[0051] First embodiment:

[0052] like Figures 1 to 8 As shown, this embodiment provides a water-stopping device for a bottom-shaft rotary steel gate, which includes a gate assembly, a bottom shaft, a driving device (not shown) and a water-stopping matching device.

[0053] In this embodiment, the gate assembly includes a gate body and a water stopper at the bottom of the gate body. It should be noted that in other embodiments, the water stopper may not be provided at the bottom of the gate body, so that water stopping is achieved by the door body itself in conjunction with other components.

[0054] Specifically, the water-stopping fitting device is fixed to the river channel sill, the bottom shaft passes through the water-stopping fitting device, and the bottom shaft can rotate around the rotation center relative to the water-stopping fitting device. Figure 2 The center of rotation is shown. The door body and the bottom shaft are fixedly connected. The door body and the bottom shaft can be manufactured as a whole or in sections and assembled on-site according to actual conditions. The drive device can drive the bottom shaft to rotate, thereby driving the door body 1 to rotate from the lying position along the first rotation direction A to the upright position, or from the upright position along the second rotation direction B to the lying position. Figure 2 A first rotational direction A and a second rotational direction B are shown.

[0055] Since the water-stopping device remains fixed while the door body needs to rotate with the bottom shaft, a certain gap needs to be left between the door body and the water-stopping device to ensure the relative rotation of the door body and the water-stopping device, and a water-stopping structure needs to be provided here to ensure that the door body and the water-stopping device can contact and stop the water when the door body is in the upright state. Therefore, the water-stopping device in this embodiment is configured to include an arc-shaped reference surface corresponding to the door body rotation area, and a raised portion corresponding to the door body rotation area, and the distance from the upper surface of the raised portion to the rotation center is greater than the distance from the arc-shaped reference surface to the rotation center.

[0056] It should be noted that the curved reference surface and raised portion in this patent refer to the area corresponding to the door's rotation range. For example, when the door's rotation range is 90°, the curved reference surface and raised portion are also located at the position of the water-stop fitting corresponding to the 90° range. Since other positions of the water-stop fitting do not contact the door, there is no need to consider whether to install a water-stop structure in other positions, and the issue of curved reference surface or raised portion is not involved.

[0057] In this embodiment, the raised portion is integrally formed with the water-stopping device. Specifically, during the manufacturing process, the raised portion can be formed by the surface of the water-stopping device protruding away from the rotation center. In other embodiments, the raised portion can also be configured in other forms, as long as the distance from the upper surface of the raised portion to the rotation center is greater than the distance from the arc reference surface to the rotation center.

[0058] Furthermore, in this embodiment, the upper surface of the protrusion includes two parts. The distance from the upper surface of one part of the protrusion to the rotation center gradually increases along the first rotation direction, while the distance from the upper surface of the other part of the protrusion to the rotation center remains stable along the first rotation direction.

[0059] The water-stop device for the bottom-axis rotary steel gate provided in this embodiment is such that when the gate body rotates along the first rotation direction A, the water-stop member rotates along the surface of the water-stop matching device driven by the gate body. When the water-stop member rotates relative to the arc reference surface, the water-stop member does not contact the arc reference surface to stop water because the distance from the arc reference surface to the rotation center is small; when the water-stop member rotates relative to the raised portion, the water-stop member contacts the raised portion, thereby achieving water-stopping in that area. Furthermore, for the raised portion whose distance to the rotation center changes, when the water-stop member rotates to that area, the compression amount of the water-stop member gradually increases under the action of the raised portion; and for the raised portion whose distance to the rotation center remains stable, when the water-stop member rotates to that area, the compression amount of the water-stop member remains relatively stable until the gate body rotates to the upright state.

[0060] Such a structural design ensures that, first, when the door body is in a position where water stopping is not required, the water stop is not compressed, and when the door body is in a position where water stopping is required, such as a vertical door position, the water stop has an appropriate amount of compression, that is, the sealing and water stopping effect of the water stop matches the water stopping requirements when the door body is in different positions, thereby improving the service life of the water stop while ensuring the water stopping effect; second, by changing the distance from the upper surface of part of the raised part to the rotation center, the distance from the upper surface of part of the rotation center remains stable, thereby allowing the water stop to be continuously compressed during the upward rotation of the door body, and at the same time, the structural design also avoids the water stop from flipping over, thereby improving the service life of the water stop while ensuring the sealing performance; third, since the water stop matching device is small in size, it is easy to process.

[0061] Furthermore, in this embodiment, side waterstop portions are provided on the two side surfaces of the waterstop matching device, and the side waterstop portions are provided corresponding to the raised portions, that is, the area between the door body and the waterstop matching device is provided as three-sided waterstop in this embodiment.

[0062] In addition, in this embodiment, the number of driving devices is two, and a gate opening and closing machine room (not shown) is provided on both sides of the door body, and the driving devices are respectively arranged in the gate opening and closing machine rooms. The driving devices drive the bottom shaft to rotate, thereby driving the door body to rotate to an upright state or a lying state. As for the specific driving method of the driving device, the driving device can be directly connected to the bottom shaft and drive the bottom shaft to rotate, or a structure such as a crank arm (not shown) can be fixed on the bottom shaft and the driving device is connected to the crank arm, so that the driving device drives the bottom shaft to rotate through the crank arm. As for the specific form of the driving device, those skilled in the art can make a selection according to actual needs, and can make conventional and reasonable settings according to the actual structure, for example, the driving device can be set to a hydraulic cylinder, etc. It should be noted that in this embodiment, the driving devices are respectively arranged in the gate opening and closing machine rooms on both sides of the door body, and in other embodiments, only one driving device and a gate opening and closing machine room can be set according to actual conditions.

[0063] Second embodiment:

[0064] like Figures 9 to 10 As shown, this embodiment provides a water-stopping device for a bottom-axis rotary steel gate, which has roughly the same structure as the water-stopping device for a bottom-axis rotary steel gate provided in the first embodiment. The difference is that in the first embodiment, the protrusion and the water-stopping matching device are integrated, while in this embodiment, the protrusion and the water-stopping matching device are processed separately, and the two are fixedly connected.

[0065] The third embodiment:

[0066] like Figure 11 As shown, this embodiment provides a water-stop device for a bottom-axis rotary steel gate. Its structure is substantially the same as that of the water-stop device for a bottom-axis rotary steel gate provided in the first embodiment. The difference is that, whereas in the first embodiment, a water-stop is provided at the bottom of the gate body, this embodiment does not have a water-stop at the bottom of the gate body. Instead, a raised portion is made of rubber, and water is stopped when the bottom of the gate body contacts the raised portion.

[0067] The above describes the specific embodiments of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the scope of the technical concept of this invention.

Claims

1. A water-stopping device for a bottom shaft (2) rotary steel gate, characterized in that: It comprises a gate assembly (1), a bottom shaft (2), a driving device and a water-stopping matching device (3); The gate assembly (1) comprises a gate body (11), the water-stopping matching device (3) is fixed to the river channel sill, the bottom shaft (2) passes through the water-stopping matching device (3), and the bottom shaft (2) can rotate around the rotation center (4) relative to the water-stopping matching device (3); the bottom shaft (2) is located at the bottom of the gate body (11), and the driving device drives the bottom shaft (2) to rotate, thereby driving the gate body (11) to rotate along a first rotation direction from a lying state to an upright state; The water-stopping matching device (3) comprises an arc-shaped reference surface (31) corresponding to the rotation area of the gate assembly (1), and a raised portion (32) corresponding to the rotation area of the gate assembly (1), wherein the distance from the upper surface of the raised portion (32) to the rotation center (4) is greater than the distance from the arc-shaped reference surface (31) to the rotation center (4); when the gate assembly (1) rotates along the first rotation direction to the raised portion (32), the gate assembly (1) contacts the raised portion (32) to stop water.

2. The water-stopping device for the bottom shaft (2) rotary steel gate according to claim 1 is characterized in that: The raised portion (32) and the water-stopping matching device (3) are integrally formed.

3. The water-stopping device for the bottom shaft (2) rotary steel gate according to claim 1 is characterized in that: The raised portion (32) is fixedly connected to the water-stopping matching device (3).

4. The water-stopping device for the bottom shaft (2) rotary steel gate according to claim 1, characterized in that: The distance from the entire upper surface or part of the upper surface of the raised portion (32) to the rotation center (4) gradually increases along the first rotation direction.

5. The water-stopping device for the bottom shaft (2) rotary steel gate according to claim 1, characterized in that: The distance between the entire upper surface or a portion of the upper surface of the protrusion (32) and the rotation center (4) remains stable along the first rotation direction.

6. The water-stopping device for the bottom shaft (2) rotary steel gate according to claim 1, characterized in that: The raised portion (32) is made of rubber, and when the gate assembly (1) moves to the raised portion (32), the raised portion (32) is gradually compressed.

7. The water-stopping device for the bottom shaft (2) rotary steel gate according to claim 1, characterized in that: When the gate assembly (1) rotates to the upright state, the gate assembly (1) and the raised portion (32) abut against each other.

8. The water-stopping device for the bottom shaft (2) rotary steel gate according to claim 1, characterized in that: The gate assembly (1) further comprises a water stop member (5) (12) arranged at the bottom of the gate body (11), wherein the water stop member (5) (12) is made of rubber. When the gate assembly (1) rotates along the first rotation direction to the raised portion (32), the water stop member (5) (12) contacts the raised portion (32) to stop water.

9. The water-stopping device for the bottom shaft (2) rotary steel gate according to claim 1, characterized in that: Side water-stopping portions (33) are provided on both side surfaces of the water-stopping matching device (3), and the side water-stopping portions (33) are arranged corresponding to the raised portions (32).

10. The water-stopping device for a bottom shaft (2) rotary steel gate according to any one of claims 1 to 9, characterized in that: A gate opening and closing machine room is provided on the side of the door body (11) rotation center (4), the driving device is provided in the gate opening and closing machine room, the bottom shaft (2) rotation center (4) extends into the gate opening and closing machine room, a crank arm is fixedly provided on the bottom shaft (2) rotation center (4), the driving device is connected to the crank arm, and the driving device drives the crank arm to rotate, thereby driving the bottom shaft (2) rotation center (4) to rotate.

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