A bottom-shaft water-stop structure and gate

Abstract

This invention provides a bottom shaft inter-branch water-stop structure and a gate. The bottom shaft inter-branch water-stop structure includes a water-stop component and adjacent first and second shaft ends, with a gap between the first and second shaft ends. The water-stop component covers the first and second shaft ends and the gap between them. The water-stop component is fixedly connected to the first shaft end and slidably connected to the second shaft end. By setting a water-stop component between the bottom shafts, and fixing the water-stop component to one shaft end and slidably connecting it to the other shaft end, this invention allows the water-stop component to slide relative to the bottom shaft when the bottom shaft undergoes expansion and contraction along the axial direction due to changes in temperature, stress, and other factors. This effectively adapts to the deformation of the bottom shaft, improving the stability and safety of the bottom shaft structure and the service life of the gate.

Description

Technical Field

[0001] This invention relates to the field of water conservancy engineering technology, specifically to a bottom-axis water-stopping structure and gate. Background Technology

[0002] In existing technology, there is a type of sluice gate whose structure mainly includes a bottom shaft, which is installed on multiple hinge seats fixed at the bottom of the river channel. Both ends of the bottom shaft extend through the wall into the hoisting machine chamber, where a hoisting machine is located. The gate leaf for water obstruction is welded to the bottom shaft. When the hoisting machine operates, it drives the bottom shaft to rotate, thereby causing the gate leaf to stand upright to obstruct water or lower down to release water. When the river span is large, several sluice gates must be installed. Since each sluice gate requires a hoisting machine to drive the bottom shaft to rotate, thereby opening and closing the gate leaf, a tall pier is generally required between two adjacent sluice gates to accommodate the hoisting machine chamber. This tall pier obstructs the water flow, hindering flood discharge and affecting the river landscape.

[0003] Therefore, existing technology has developed a type of horizontal gate. Compared to conventional gates, the horizontal gate's hoist position is moved below the bottom axis plane. This structural design eliminates the need for tall piers in the river channel when multiple spans are connected. However, with this design, the bottom axes of adjacent horizontal gates are inserted into the hoist chamber, and the two hoists driving the rotation of the two bottom axes are housed in a single chamber, which occupies a significant amount of space and makes construction inconvenient. To address this, some engineers have proposed placing the connection point between two adjacent bottom axes in the river channel rather than within the hoist chamber, thereby saving space in the hoist chamber and simplifying the overall gate structure.

[0004] In this situation, a water-stop structure needs to be installed between adjacent bottom shafts to prevent upstream water from flowing downstream through the gap between the bottom shafts when the gate is in a water-blocking state, causing leakage. To address this, existing technology directly sleeves water-stop components onto the ends of adjacent bottom shafts, with the water-stop components fixedly connected to both ends. This method avoids leakage, but its drawback is that when the bottom shafts expand and contract along their axial direction due to temperature and stress changes, the fixed connection of the water-stop components prevents the deformation from being fully released. Over time, this can affect the stability and service life of the gate structure. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the purpose of this invention is to provide a bottom shaft water-stopping structure that can both stop water and release the expansion and contraction deformation of the bottom shaft, as well as a gate including the bottom shaft water-stopping structure.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] A bottom shaft water-stop structure includes a water-stopping component and a first shaft end and a second shaft end arranged adjacent to each other, with a gap between the first shaft end and the second shaft end; the water-stopping component covers the first shaft end, the second shaft end, and the gap between the first shaft end and the second shaft end, and is fixedly connected to the first shaft end and slidably connected to the second shaft end.

[0008] In this technical solution, by adopting the above-described structural design, the water-stop component is fixedly connected to the first shaft end and slidably connected to the second shaft end. This allows the bottom shaft to slide relative to the water-stop component when it undergoes expansion and contraction along the axial direction due to changes in temperature, stress, and other factors. This fully adapts to the deformation of the bottom shaft, improving the stability and safety of the bottom shaft structure and the service life of the gate.

[0009] Preferably, the water-stopping component includes a first side end, a second side end, and a middle section. The first side end covers the surface of the first shaft end and is fixedly connected to the first shaft end. The second side end covers the surface of the second shaft end and is slidably connected to the second shaft end. The middle section covers the gap between the first shaft end and the second shaft end. The middle section includes a water-blocking part used to block water when the gate is in a water-blocking state.

[0010] In this technical solution, by adopting the above-described structural design, the water-stopping component includes a first side end for fixed connection with the first shaft end, a second side end for sliding connection with the second shaft end, and an intermediate section for covering the gap between the first shaft end and the second shaft end. The central angles corresponding to the areas covered by the first side end, the second side end, and the intermediate section are not required to be 360°, nor are they required to be the same. Users can choose according to their actual needs. It is only necessary to ensure that the intermediate section of the water-stopping component includes a water-blocking part for sealing when the gate is in a water-blocking state, that the water-stopping component is fixedly connected to the first shaft end, and that the water-stopping component is slidably connected to the second shaft end.

[0011] Preferably, the central angle corresponding to the area covered by the middle segment is greater than or equal to 90°.

[0012] Theoretically, the rotation angle of the bottom shaft of a horizontal gate from its horizontal to its fully water-blocking state is 90°. This technical solution sets the central angle corresponding to the area covered by the middle section to be greater than or equal to 90°. When the value is 90°, the user can use the entire middle section as a water-blocking part to achieve the sealing purpose. When the value is greater than 90°, the central angle corresponding to the area covered by the water-blocking part can be 90° or slightly greater than 90°, so as to overcome the possible leakage defects caused by the installation deviation of the water-blocking parts or the deviation of the gate rotation angle while ensuring the basic water-blocking performance.

[0013] Preferably, a plurality of seals are provided between the second side end and the surface of the second shaft end.

[0014] In this technical solution, by adopting the above-described structural design, the second side end can slide relative to the second shaft end. A sealing element is provided between the surface of the second side end and the surface of the second shaft end to prevent water from entering between the second side end and the surface of the second shaft end, thereby ensuring that the second side end covers the second shaft end and ensuring the water-stopping performance between the bottom shafts.

[0015] Preferably, the second shaft end has a plurality of first recessed structures in the area in contact with the second side end, the seal is disposed in the first recessed structures, and the seal fits against the second side end.

[0016] In this technical solution, by adopting the above-described structural design, the design of the first recessed structure on the second shaft end is used to fix the water-stopping component between the second side end and the surface of the second shaft end. On the one hand, this ensures the sealing between the second side end and the surface of the second shaft end, and on the other hand, it does not affect the relative sliding of the second shaft end and the second side end.

[0017] Preferably, the first shaft end includes a first opposing surface facing the second shaft end, the second shaft end includes a second opposing surface facing the first shaft end, and friction-reducing elements are provided on the first opposing surface and / or the second opposing surface.

[0018] In this technical solution, by adopting the above-described structural design, friction-reducing components are provided on the opposing surfaces of the bottom shafts, which avoids direct contact and dry friction between the bottom shafts when the deformation of the bottom shafts is greater than the clearance, thereby further improving safety and service life.

[0019] Preferably, a second recessed structure is provided on the first opposing surface and / or the second opposing surface, and the friction-reducing component is fixedly installed in the second recessed structure.

[0020] In this technical solution, by adopting the above-described structural design, the friction-reducing component is fixed in the recessed structure on the opposite surface of the shaft end, thereby improving the stability of the friction-reducing component and preventing it from detaching from the opposite surface of the shaft end during use.

[0021] A gate comprising the bottom shaft water-stopping structure described in any of the above claims.

[0022] In this technical solution, by adopting the above-described structural design, the gate includes the bottom shaft water-stop structure described in any of the above-described embodiments, thereby greatly improving the stability and safety of the bottom shaft structure and the service life of the gate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The water-stop structure and gate provided by the present invention have a water-stop component installed between the bottom shafts. The water-stop component is fixedly connected to one shaft end and slidably connected to the other shaft end. This structural design allows the water-stop component to slide relative to the bottom shaft when the bottom shaft undergoes expansion and contraction along the axial direction due to changes in temperature, stress and other factors. This can fully adapt to the deformation of the bottom shaft, improve the stability and safety of the bottom shaft structure and the service life of the gate. Attached Figure Description

[0025] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the bottom shaft waterstop structure described in Example 1;

[0027] Figure 2 for Figure 1 Enlarged view of Part I;

[0028] Figure 3 for Figure 1 Sectional view along line AA;

[0029] Figure 4 This is a schematic diagram of the bottom shaft waterstop structure described in Example 2;

[0030] Figure 5 for Figure 4 Enlarged view of Part I;

[0031] Figure 6 for Figure 4 Enlarged view of Part II;

[0032] Figure 7 for Figure 4 Sectional view along line BB;

[0033] Figure 8 This is a schematic diagram of the bottom shaft waterstop structure described in Example 3;

[0034] Figure 9 for Figure 8 A sectional view along line AA.

[0035] The diagram shows:

[0036] 1-First shaft end;

[0037] 11 - First Opposite Side;

[0038] 2-Second shaft end;

[0039] 21-Second Opposite Side;

[0040] 3-water stop parts;

[0041] 31-First side end;

[0042] 32 - Second side end;

[0043] 33-Middle section;

[0044] 33a - Water-retaining section;

[0045] 5-Seals;

[0046] 7-Friction Reduction Components Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0049] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, all directional indications (such as up, down, left, right, front, back, bottom, etc.) in this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indication will also change accordingly. Furthermore, descriptions involving "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0050] Example 1

[0051] like Figures 1 to 3 As shown, this embodiment provides a bottom shaft inter-waterstop structure. Specifically, as... Figure 1As shown, the bottom shaft water-stop structure includes a first shaft end 1, a second shaft end 2, and a water-stopping element 3. The first shaft end 1 includes a first opposing surface 11 facing the second shaft end 2, and the second shaft end 2 includes a second opposing surface 21 facing the first shaft end 1. There is a gap between the first opposing surface 11 and the second opposing surface 21 to prevent the bottom shaft from undergoing expansion and contraction deformation in the axial direction due to changes in temperature, stress, and other factors, thereby affecting the structural stability and service life of the gate.

[0052] like Figure 2 As shown, the water-stopping component 3 includes a first side end 31, a second side end 32, and an intermediate section 33. The first side end 31 tightly covers the surface of the first shaft end 1 and is fixedly connected to the first shaft end 1. The second side end 32 tightly covers the surface of the second shaft end 2 and is slidably connected to the second shaft end 2. The intermediate section 33 covers the gap between the first shaft end 1 and the second shaft end 2.

[0053] like Figure 3 As shown, in this embodiment, the central angle corresponding to the area covered by the middle section 33 is 120°, which includes a water-blocking part 33a used for water blocking when the gate is in the water-blocking state. Since the angle through which the bottom shaft rotates when the gate switches from the water-releasing state to the water-blocking state is theoretically exactly 90°, this embodiment designs the central angle corresponding to the area covered by the water-blocking part 33a to be 90°. This ensures that when the gate is in the water-blocking state, the water-blocking part 33a rotates to the upstream side with the bottom shaft, and the water flow is blocked by the water-blocking part 33a and cannot flow through the gap between the first shaft end 1 and the second shaft end 2, thereby ensuring the sealing performance of the gate when it is in the water-blocking state.

[0054] In addition, such as Figure 3 As shown, in this embodiment, the central angle of the area covered by the middle section 33 is greater than the central angle of the area covered by the water-blocking part 33a. This can overcome the defects of possible water leakage caused by the installation deviation of the water-stopping part 3 or the deviation of the gate rotation angle, and further ensure the water-stopping performance.

[0055] Through the above structural design, this embodiment achieves the following: on the one hand, the water-blocking part 33a can play a role in blocking water during the operation of the gate, ensuring sealing performance; on the other hand, the water-stopping part 3 is fixedly connected to the first shaft end 1 and slidably connected to the second shaft end 2. When the bottom shaft undergoes expansion and contraction deformation in the axial direction due to changes in temperature, stress and other factors, the water-stopping part 3 and the second shaft end 2 slide relative to each other to adapt to the expansion and contraction deformation of the bottom shaft. The bottom shaft can remain relatively stable under different environmental conditions, thereby improving safety and the service life of the gate.

[0056] It should be noted that in the bottom shaft water-stop structure provided by the present invention, the central angles corresponding to the areas covered by the first side end 31, the second side end 32, and the middle section 33 of the water-stop member 3 can be the same or different; at the same time, the central angles corresponding to the areas covered by the first side end 31, the second side end 32, and the middle section 33 can be 360°, that is, full coverage, or other angles. Users can choose according to actual needs. It is only necessary to ensure that the water-blocking part 33a contained in the water-stop member 1 can seal the gap between the first shaft end 1 and the second shaft end 2 when the gate is in the water-blocking state, and that the water-stop member 3 is fixedly connected to the first shaft end 1 and slidably connected to the second shaft end 2. That is, all methods that can achieve the purpose of the present invention are within the protection scope of the present invention.

[0057] Example 2

[0058] like Figures 4 to 7 As shown, this embodiment provides a bottom-shaft inter-waterstop structure, which is largely the same as the bottom-shaft inter-waterstop structure described in the first embodiment, except that:

[0059] like Figures 4 to 6 As shown, in this embodiment, the second shaft end 2 has an annular first recessed structure in the area contacting the second side end 32. A sealing element 5 is installed in the first recessed structure, and the sealing element 5 is tightly fitted to the second side end 32. Through the design of the sealing element 5, this embodiment prevents water from entering between the second side end 32 and the surface of the second shaft end 2, thereby ensuring that the second side end 32 covers the second shaft end 2 and guarantees sealing performance.

[0060] Furthermore, such as Figures 4 to 7 As shown in this embodiment, an annular second recessed structure is provided on the first opposing surface 11, and a friction-reducing component 7 is installed in the second recessed structure. The friction-reducing component 7 is fixed to the first opposing surface 11 of the first shaft end 1 by bolts, and there is still a gap between the friction-reducing component 7 and the second opposing surface 21. The design of the friction-reducing component 7 can prevent adjacent bottom shafts from colliding and dry friction with each other when the deformation of the bottom shaft is greater than the gap, further improving the stability, safety and service life of the gate structure.

[0061] It should be noted that in other embodiments of the present invention, the user may also choose to provide the friction-reducing component 7 on both the first opposing surface 11 and the second opposing surface 21 or only on the second opposing surface 21. When the friction-reducing component 7 is provided on both the first opposing surface 11 and the second opposing surface 21, there is a gap between the two friction-reducing components 7. Furthermore, the installation method of the friction-reducing component 7 is not limited to bolt connection, and the shape of the second recessed structure is not limited to ring shape. The user can choose according to actual needs.

[0062] 3rd Embodiment

[0063] This embodiment provides a bottom-axis inter-axis water-stop structure, which is largely the same as the bottom-axis inter-axis water-stop structure described in the second embodiment, except that: Figures 8 to 9 As shown, in this embodiment, the central angle corresponding to the area covered by the middle section 33 is 90°, and the entire middle section 33 plays a water-blocking role during the gate's water-blocking process. In other words, in this embodiment, the middle section 33 as a whole is the water-blocking part 33a.

[0064] Example 4

[0065] This embodiment provides a gate, including the water-stopping structure between the bottom shaft as described in any one of embodiments 1 to 3. Specifically, the gate includes several gate units, each gate unit including a gate leaf, a bottom shaft, and a driving device. The gate leaf is fixedly connected to the bottom shaft, and the driving device drives the bottom shaft to rotate, thereby causing the gate leaf to rotate.

[0066] Two adjacent gate units include a first bottom shaft and a second bottom shaft arranged adjacent to each other. The first bottom shaft includes a first shaft end 1 facing the second bottom shaft, and the second bottom shaft includes a second shaft end 2 facing the first bottom shaft. There is a gap between the first shaft end 1 and the second shaft end 2. A water-stopping member 3 covers the first shaft end 1, the second shaft end 2, and the gap between the first shaft end 1 and the second shaft end 2. The water-stopping member 3 is fixedly connected to the first shaft end 1 and slidably connected to the second shaft end 2.

[0067] The specific embodiments of the present invention have been described above. Based on the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of the present invention.

Claims

1. A subaxle water stop structure characterized by comprising: The water stop (3) covers the first shaft end (1), the second shaft end (2) and the gap between the first shaft end (1) and the second shaft end (2), and is fixedly connected with the first shaft end (1) and slidably connected with the second shaft end (2); The water stop (3) includes a first side end (31), a second side end (32) and an intermediate section (33), the first side end (31) covers the surface of the first shaft end (1) and is fixedly connected with the first shaft end (1), the second side end (32) covers the surface of the second shaft end (2) and is slidably connected with the second shaft end (2), and the intermediate section (33) covers the gap between the first shaft end (1) and the second shaft end (2) and includes a water blocking part (33a) for blocking water when the gate is in a water blocking state. The second shaft end (2) is provided with a plurality of first recessed structures in the area in contact with the second side end (32), and a sealing element (5) is arranged in the first recessed structure and is in close contact with the second side end (32). The first shaft end (1) includes a first opposite surface (11) facing the second shaft end (2), and the second shaft end (2) includes a second opposite surface (21) facing the first shaft end (1), and the first opposite surface (11) and / or the second opposite surface (21) is provided with a friction reducing element (7); the friction reducing element (7) is used to prevent mutual collision and dry friction between adjacent bottom shafts when the deformation amount of the bottom shaft is greater than the gap.

2. The underhung waterstop of claim 1, wherein, The central angle of the area covered by the intermediate section (33) is greater than or equal to 90°.

3. The underhung waterstop of claim 1, wherein, The second side end (32) and the surface of the second shaft end (2) are provided with a plurality of sealing elements (5).

4. The underhung waterstop of claim 1, wherein, The first shaft end (1) includes a first opposite surface (11) facing the second shaft end (2), and the second shaft end (2) includes a second opposite surface (21) facing the first shaft end (1), and the first opposite surface (11) and the second opposite surface (21) are provided with a friction reducing element (7).

5. The underhung waterstop of claim 1, wherein, The first opposite surface (11) and / or the second opposite surface (21) are provided with a second recessed structure, and the friction reducing element (7) is fixedly installed in the second recessed structure.

6. A gate characterized by, The water stop structure between the bottom shafts includes the water stop structure between the bottom shafts according to any one of claims 1-5.

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