Bottom shaft water stop device for steel dam gate and gate

Abstract

The utility model provides a bottom shaft water stop device for a steel dam gate and the gate, the bottom shaft water stop device comprises a bottom shaft, a base and water stop rubber, and the water stop rubber is fixed on the base; the water stop rubber comprises a main body part and a water stop part, the water stop part comprises a water stop surface, and the water stop surface is in contact with the surface of the bottom shaft to stop water; a silt shoveling end is arranged on the upper portion of the water stopping part and attached to the surface of the bottom shaft, the upper surface of the silt shoveling end gradually rises in the direction close to the bottom shaft, and when the bottom shaft rotates, the surface of the bottom shaft rotates relative to the silt shoveling end. Through the design, deposition of silt or floating objects on the water stop piece can be reduced, meanwhile, abrasion of the water stop rubber is reduced, and the water stop effect is guaranteed.

Description

Technical Field

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

[0002] The steel dam gate, also known as the bottom-shaft rotary gate, is one of the more common gate structures used in water conservancy projects. The gate can drive the gate leaf to flip through the bottom shaft to achieve the purpose of controlling the water level, regulating the flow and discharging floating objects.

[0003] The existing steel dam gate bottom shaft water-stopping device usually adopts P-type water-stopping rubber, which has at least the following defects: first, the contact water-stopping area between the water-stopping rubber surface and the bottom shaft surface is usually linear, and the water-stopping effect is not ideal; second, if Figure 3 As shown, when the head of the P-type water-stop rubber contacts the bottom shaft, a recessed area will be formed above the contact position. This area is very prone to sediment or floating objects. When the bottom shaft rotates, the sediment and other materials here will be drawn into the contact water-stopping area between the water-stop rubber and the bottom shaft, thereby destroying the water-stopping effect and easily causing wear of the water-stop rubber. Utility Model Content

[0004] In view of the defects in the prior art, the purpose of the utility model is to provide a bottom shaft water-stopping device and a gate to prevent mud and sand from being drawn into the water-stopping part and ensure the water-stopping effect.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A bottom shaft water-stop device for a steel dam gate comprises a bottom shaft, a base and a water-stop rubber, wherein the water-stop rubber is fixed to the base; the water-stop rubber comprises a main body and a water-stop portion, wherein the water-stop portion comprises a water-stop surface, and the water-stop surface contacts the bottom shaft surface for water-stopping; a shoveling end is provided on the upper part of the water-stop portion, and the shoveling end is attached to the bottom shaft surface, and when the bottom shaft rotates, the bottom shaft surface rotates relative to the shoveling end.

[0007] Preferably, part or all of the upper surface of the shoveling end gradually rises in a direction close to the bottom axis, or part or all of the upper surface of the shoveling end is horizontally arranged.

[0008] Preferably, the shoveling end is a pointed structure or a flat structure.

[0009] Preferably, the water stop surface is a curved surface, and the water stop surface and the bottom shaft are coaxially arranged.

[0010] Preferably, the water stop surface is provided with a plurality of inner recesses.

[0011] Preferably, the silt shoveling end includes an upper silt shoveling end and a lower silt shoveling end, the upper silt shoveling end is arranged at the upper part of the water stop part, the upper silt shoveling end is attached to the surface of the bottom shaft, and the upper surface of the silt shoveling end gradually rises along the direction close to the bottom shaft; the lower silt shoveling end is arranged at the lower part of the water stop part, and the lower silt shoveling end is attached to the surface of the bottom shaft.

[0012] Preferably, it also includes a water-stop auxiliary device, and the water-stop rubber is fixed to the base through the water-stop auxiliary device; the water-stop auxiliary device includes a fixing part and a water-stop pressure plate, the main body is located between the water-stop pressure plates, and the fixing part fixes the water-stop rubber and the water-stop pressure plate to the base.

[0013] Preferably, during the rotation of the bottom shaft, there is a gap between the water stop pressure plate and the surface of the bottom shaft.

[0014] Preferably, the axial lengths of the base and the water stop match the axial length of the bottom shaft.

[0015] A steel dam gate comprises the bottom shaft water stopping device described in any one of the above items.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The bottom shaft water-stopping device for the steel dam gate provided by the utility model is provided with a shoveling end fitted with the bottom shaft. When the bottom shaft rotates, the shoveling end removes the silt on the surface of the bottom shaft, thereby increasing the service life of the device;

[0018] 2. The bottom shaft water-stopping device for the steel dam gate provided by the utility model has part or all of the upper surface of the shoveling end arranged horizontally or gradually rising in the direction close to the bottom shaft. This structural design can avoid the deposition of impurities such as sand and gravel at the contact position between the water-stopping part and the bottom shaft, thereby preventing mud or floating objects from being drawn into the water-stopping rubber due to the flipping of the bottom shaft, reducing the wear of the water-stopping rubber and ensuring the water-stopping effect.

[0019] 3. The bottom shaft water-stopping device provided by the utility model sets the water-stopping surface as an arc-shaped surface coaxial with the bottom shaft surface, thereby expanding the water-stopping contact area and further improving the water-stopping effect.

[0020] 4. The bottom shaft water-stopping device provided by the utility model has a water-stopping surface of the water-stopping rubber provided with an inner recessed portion, which reduces the friction by reducing the water-stopping area between the water-stopping surface and the bottom shaft surface. The space formed between the inner recessed portion and the bottom shaft surface can also buffer the deformation of the water-stopping rubber and prevent the water-stopping rubber from rolling over.

[0021] 5. The gate provided by the utility model has a simple structure and good water-stopping effect by adopting the above-mentioned bottom shaft water-stopping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0023] Figure 1 A cross-sectional view of the overall structural schematic diagram of the bottom shaft water-stopping device in Example 1;

[0024] Figure 2 It is a partial cross-sectional view of the bottom shaft water-stopping device in Example 1;

[0025] Figure 3 A cross-sectional view of a schematic diagram of the overall structure of a bottom shaft water-stopping device in the prior art;

[0026] Description of Figure Numbers:

[0027] 1- base;

[0028] 21-fixing parts;

[0029] 23-water stop pressure plate;

[0030] 24-water-stop rubber;

[0031] 241-Main body;

[0032] 242-water stop;

[0033] 243-water stop surface;

[0034] 244-inner concave part;

[0035] 245-shovel silt end;

[0036] 3- Bottom shaft. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] 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 which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0039] 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 and explained in the 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 certain specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. Furthermore, the descriptions involving "first", "second", etc. in the application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.

[0040] Example 1

[0041] This embodiment provides a bottom shaft water stopping device, such as Figure 1-2 As shown, it includes a base 1 and a water-stop rubber 24. The water-stop rubber 24 is connected to the base 1 through a water-stop auxiliary device, which can ensure that when the bottom shaft 3 rotates, the water-stop component will not be deviated or excessively deformed.

[0042] like Figure 2 As shown, the water-stop auxiliary device includes two water-stop pressure plates 23 and a fixing member 21, the fixing member 21 can be a fixing bolt, the water-stop rubber 24 is arranged between the water-stop pressure plates 23, and the fixing member 21 passes through the water-stop pressure plates 23, the water-stop rubber 24 and the base 1, so as to fix the water-stop rubber 24 on the base 1. The bottom water-stop pressure plate 23, the pad and the rubber can fix the water-stop rubber 24, ensuring that the water-stop rubber 24 bounces within a certain range and will not be rolled into the bottom shaft 3 when the bottom shaft 3 rotates.

[0043] The water-stop rubber 24 includes a main body 241 and a water-stop portion 242. The water-stop portion 242 includes a water-stop surface 243, which contacts the surface of the bottom shaft 3 to stop water, and a shoveling end 245 is provided on the upper part of the water-stop portion 242. As for the shape of the shoveling end 245, the shoveling end 245 in this embodiment is a pointed structure, and in other embodiments, it can also be set to a flat head structure, as long as the silt on the surface of the bottom shaft 3 can be removed. The shoveling end 245 is attached to the surface of the bottom shaft 3, and when the bottom shaft 3 rotates, the surface of the bottom shaft 3 rotates relative to the shoveling end 245. The upper surface of the shoveling end 245 gradually rises in the direction close to the bottom shaft 3. With this solution, there will be no concave area at the position where the water-stop rubber 24 contacts the surface of the bottom shaft 3, so that the mud or floating objects driven by the bottom shaft 3 when it turns over can be discharged along the upper surface of the water-stop, avoiding it from being involved in the contact water-stop area and damaging the water-stop.

[0044] The bottom shaft water-stopping device provided in this embodiment has a main body 241 of the water-stopping rubber 24 fixed between the bottom water-stopping pressure plate 23 and the pad. Since the main body 241 occupies most of the water-stopping rubber 24, the water-stopping portion 242 of the water-stopping rubber 24 can be well and stably fitted to the surface of the bottom shaft 3 without excessive deformation.

[0045] The bottom shaft water-stopping device provided in this embodiment has a water-stopping surface 243 of the water-stopping rubber 24 which is an arc surface, and the center of the arc surface is the center of the bottom shaft 3. At this time, the arc surface of the water-stopping rubber 24 fits tightly with the surface of the bottom shaft 3, which can not only improve the water-stopping effect, but also prevent mud or floating objects from entering the gap between the water-stopping part and the bottom shaft 3 due to the deformation of the rubber, thereby ensuring the water-stopping function.

[0046] The bottom shaft water-stopping device provided in this embodiment has a water-stopping surface 243 of the water-stopping rubber 24 provided with an inner recess 244. The inner recess 244 forms an air passage between the water-stopping rubber 24 and the bottom shaft 3. On the one hand, the area between the water-stopping surface 243 and the surface of the bottom shaft 3 can be reduced to reduce the friction force; on the other hand, the deformation of the rubber can be buffered to prevent the rubber from rolling over.

[0047] In the bottom shaft water-stopping device provided in this embodiment, the axial lengths of the base 1 and the water-stopping member match the axial length of the bottom shaft 3 , thereby achieving water-stopping of the bottom shaft 3 as a whole.

[0048] Example 2

[0049] This embodiment provides a bottom shaft water stopping device for a steel dam gate, which is basically the same in structure as that of Embodiment 1, except that:

[0050] The first embodiment includes a shoveling end 245, while in the present embodiment, an upper shoveling end and a lower shoveling end are provided. The upper shoveling end is provided at the upper part of the water stop portion 242, and the upper shoveling end is attached to the surface of the bottom shaft 3, and the upper surface of the shoveling end 245 gradually rises in the direction close to the bottom shaft 3; the lower shoveling end is provided at the lower part of the water stop portion 242, and the lower shoveling end is attached to the surface of the bottom shaft 3. Such a structural design allows the upper shoveling end to play a role in shoveling away silt when the bottom shaft 3 rotates in the counterclockwise direction; and the lower shoveling end to play a role in shoveling away silt when the bottom shaft 3 rotates in the clockwise direction.

[0051] Example 3

[0052] This embodiment provides a gate, including a gate leaf, a driving device, a bottom shaft 3 and a bottom shaft water-stopping device described in the embodiment. Specifically, the gate leaf is fixedly connected to the bottom shaft 3, the driving device drives the bottom shaft 3 to rotate, thereby driving the gate leaf to rotate, and in the bottom shaft water-stopping device, the water-stopping surface 243 of the water-stopping rubber 24 is closely attached to the surface of the bottom shaft 3.

[0053] The specific embodiments of the present invention are described above. Through the above description, relevant staff can make various changes and modifications without departing from the technical concept of the present invention.

Claims

1. A bottom shaft water stopping device for a steel dam gate, characterized in that: The invention comprises a bottom shaft (3), a base (1) and a water-stop rubber (24), wherein the water-stop rubber (24) is fixed to the base (1); the water-stop rubber (24) comprises a main body (241) and a water-stop portion (242), wherein the water-stop portion (242) comprises a water-stop surface (243), wherein the water-stop surface (243) contacts the surface of the bottom shaft (3) to stop water; a shoveling end (245) is provided at the upper portion of the water-stop portion (242), wherein the shoveling end (245) is attached to the surface of the bottom shaft (3), and when the bottom shaft (3) rotates, the surface of the bottom shaft (3) rotates relative to the shoveling end (245).

2. The bottom shaft water stopping device for a steel dam gate according to claim 1, characterized in that: Part or all of the upper surface of the shoveling end (245) gradually rises in a direction approaching the bottom axis (3), or part or all of the upper surface of the shoveling end (245) is arranged horizontally.

3. The bottom shaft water stopping device for steel dam gate according to claim 1, characterized in that: The shoveling end (245) is a pointed structure or a flat structure.

4. The bottom shaft water stopping device for a steel dam gate according to claim 1, characterized in that: The water stop surface (243) is a curved surface, and the water stop surface (243) and the bottom shaft (3) are coaxially arranged.

5. The bottom shaft water stopping device for steel dam gate according to claim 1, characterized in that: The water stop surface (243) is provided with a plurality of inner recesses (244).

6. The bottom shaft water stopping device for steel dam gate according to claim 2, characterized in that: The silt shoveling end (245) comprises an upper silt shoveling end and a lower silt shoveling end, wherein the upper silt shoveling end is arranged at the upper part of the water stop portion (242), the upper silt shoveling end is in contact with the surface of the bottom shaft (3), and the upper surface of the silt shoveling end (245) gradually rises in a direction approaching the bottom shaft (3); the lower silt shoveling end is arranged at the lower part of the water stop portion (242), and the lower silt shoveling end is in contact with the surface of the bottom shaft (3).

7. The bottom shaft water stopping device for steel dam gate according to claim 1, characterized in that: It also includes a water-stop auxiliary device, the water-stop rubber (24) is fixed to the base (1) via the water-stop auxiliary device; the water-stop auxiliary device includes a fixing member (21) and a water-stop pressure plate (23), the main body (241) is located between the water-stop pressure plate (23), and the fixing member (21) fixes the water-stop rubber (24) and the water-stop pressure plate (23) to the base (1).

8. The bottom shaft water stopping device for a steel dam gate according to claim 7, characterized in that: During the rotation of the bottom shaft (3), a gap exists between the water stop pressure plate (23) and the surface of the bottom shaft (3).

9. The bottom shaft water stopping device for a steel dam gate according to claim 1, characterized in that: The axial lengths of the base (1) and the water-stop rubber (24) match the axial length of the bottom shaft (3).

10. A steel dam gate, characterized in that: It comprises the bottom shaft water stopping device as described in any one of claims 1 to 9.

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