Flat gate pull rod device
By designing a flat gate lever device, the problems of large space occupation and easy damage of multi-section short levers were solved, achieving efficient storage and improved security, while reducing manufacturing and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWER CHINA KUNMING ENG CORP LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing technology, multi-section short tie rod gate devices occupy a large space in high-head submersible gates and are not easy to store. They are also prone to deformation and damage, affecting the layout of civil engineering structures.
The design incorporates a flat gate lever device, using a flat lever made of steel plate. Multiple lever sections are fixed through slots and connecting structures at the connecting and receiving ends. This design minimizes material consumption, allows for stacking or upright placement, occupies little space, and features a simple structure with uniform stress distribution.
It achieves efficient storage of multi-section tie rods, reduces material consumption, improves storage security and the reliability of civil engineering structures, and reduces manufacturing and maintenance costs.
Smart Images
Figure CN224281183U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of gate lever devices, and more specifically, to a flat gate lever device. Background Technology
[0002] The gate lever device is an important component of the gate system in water conservancy and hydropower projects. One end of it is connected to the gate and the other end is connected to the gate hoist, which is used to control the raising and lowering of the gate and realize the opening and closing of the gate.
[0003] In existing technologies, gate tie rod devices consist of multiple short tie rods connected end to end. This reduces the stroke of the hoist and allows for flexible removal or connection of the required short tie rods according to the gate opening requirements. When there are many short tie rod sections, those not in use need to be stored in a suitable space on the dam platform. However, in high-head submersible gates, the tie rod device can typically have dozens of sections. When the gate is in its highest position, usually only the top short tie rod is connected to the gate hoist, while the remaining sections are not used. Therefore, these dozens of short tie rod sections need to be properly stored in a suitable space on the platform. Gate tie rod devices typically consist of a rod body, connectors, nuts, etc. The rod body is the main load-bearing component. Typical designs for the rod body include I-beams and box-shaped cross-sections, welded from steel plates of various sizes. The overall structural dimensions are fixed. Even when stacked, the tie rods require considerable space for storage. Furthermore, due to the unevenness of the rod body, the lower sections are easily deformed and damaged under heavy pressure when stacked. Similarly, storing individual sections upright also requires significant storage space. This requirement often causes considerable challenges to the layout of the civil engineering structure. Utility Model Content
[0004] The purpose of this invention is to provide a flat gate lever device, which aims to solve the problem that multiple short lever sections are not easy to store in the prior art.
[0005] This utility model is implemented as follows: a flat gate lever device includes multiple steel plate rods, each rod being flat in shape and connected end to end. One end of each rod is provided with a connecting end, and the other end of each rod is provided with a receiving end. The receiving end is provided with a slot for the connecting end of the adjacent rod to be inserted. The adjacent rods are fixed together by a connecting structure.
[0006] Furthermore, the connecting end is provided with a longitudinal through-hole, and the receiving end is provided with a mating hole. The mating hole is aligned and connected with the connecting hole on the adjacent rod to form a mounting hole. The connecting structure includes a connecting shaft, which is fixedly inserted into the mounting hole.
[0007] Furthermore, the connecting end includes a block-shaped connecting plate, the inner end of which is connected to the inner end of the rod body. The upper and lower sides of the connecting plate have converging step portions connected to the rod body. Along the direction of the rod body toward the connecting plate, the converging step portions gradually thin out and are rounded.
[0008] Furthermore, the receiving end includes two block-shaped ear plates, with a slot formed between the two ear plates, and the two ear plates are arranged parallel to each other on both sides of the rod body;
[0009] The ear plate is provided with the docking hole, and the connecting plate is provided with the connecting hole.
[0010] Furthermore, the connecting plate is arranged laterally, and the ear plate is arranged in the same direction as the connecting plate.
[0011] Furthermore, along the length of the rod, the connecting plate, the rod, and the ear plate are arranged concentrically and coaxially; the width of the connecting plate is greater than the width of the rod, and the width of the ear plate is greater than the width of the rod; the outer end face of the connecting plate is curved, and the outer end face of the rod is curved.
[0012] Furthermore, the connecting plate is integrally formed with the rod body.
[0013] Furthermore, the two ear plates are welded and fixed to the upper and lower sides of the rod body, respectively.
[0014] Furthermore, the lower part of the connecting shaft passes through the mounting hole to form a lower section, and the lower section is provided with a threaded hole that extends laterally through the lower section. A bolt is installed in the threaded hole, and the bolt is fixed to the threaded hole by a nut.
[0015] Furthermore, a lifting lug is provided on one side of the rod to facilitate lifting the rod. The two lifting lugs are arranged flush and spaced apart, and the lifting lugs are provided with lifting holes.
[0016] Compared with existing technologies, the flat gate lever device provided by this utility model has a main force-bearing part made of steel plate. The material consumption of a single lever section is low, and the material saving rate of multiple sections is very obvious. The flat shape allows for flexible placement and is suitable for direct stacking of multiple sections together. When placed, the stacking degree is high, the space occupied is small, and the safety is high. The side is a rod-shaped solid, which is also suitable for vertical hanging. When placed vertically, it occupies very little space. The overall structure is simple and easier to manufacture and process. When hung, the stress on the civil concrete is small, and the safety and reliability of the civil structure is high. Attached Figure Description
[0017] Figure 1 This is a front view schematic diagram of the flat gate pull rod device provided by this utility model;
[0018] Figure 2This is a schematic diagram of the structure of the flat gate pull rod device provided by this utility model;
[0019] Figure 3 This is a front view schematic diagram of the connecting shaft provided by this utility model. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0021] The implementation of this utility model will be described in detail below with reference to specific embodiments.
[0022] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0023] Reference Figure 1-3 The image shown is a preferred embodiment of the present invention.
[0024] The flat gate lever device includes multiple steel plate rods 100. The rods 100 are flat in shape and are connected end to end. One end of each rod 100 is provided with a connecting end 200, and the other end of each rod 100 is provided with a receiving end 300. The receiving end 300 is provided with a slot 301 for the connecting end 200 of the adjacent rod 100 to be inserted. The adjacent rods 100 are fixed together by a connecting structure.
[0025] The flat gate lever device provided above has a main load-bearing part, the lever 100, made of steel plate. The material consumption of a single lever 100 is low, and the material saving rate of multiple levers is very obvious. The flat shape allows for flexible placement and is suitable for stacking multiple levers together. When placed, the stacking degree is high, the space occupied is small, and the safety is high. The side is a lever-shaped solid, which is also suitable for vertical hanging. When placed vertically, it occupies very little space. The overall structure is simple and easier to manufacture and process. When hung, the stress on the civil concrete is small, and the safety and reliability of the civil structure is high.
[0026] In some embodiments, to meet usage requirements, for small gates, the thickness of the steel plate used to make the rod 100 is generally 10-20mm; for medium gates, the thickness of the steel plate used to make the rod 100 is generally 20-50mm; and for large gates, the thickness of the steel plate used to make the rod 100 is generally 50-100mm.
[0027] Specifically, the connecting end 200 has a longitudinally penetrating connecting hole 201, and the receiving end 300 has a mating hole. The mating hole is aligned and connected to the connecting hole 201 on the adjacent rod 100 to form a mounting hole. The connecting structure includes a connecting shaft 400, which is fixedly inserted into the mounting hole. In this way, the connection between adjacent rods 100 can be achieved by installing the connecting shaft 400, making the operation more efficient when using and removing the rod.
[0028] In a preferred embodiment, the connecting end 200 includes a block-shaped connecting plate 210. The inner end of the connecting plate 210 is connected to the inner end of the rod 100. The upper and lower sides of the connecting plate 210 each have a tapering step portion 211 connected to the rod 100. Along the direction from the rod 100 toward the connecting plate 210, the tapering step portion 211 gradually thins and has rounded corners. This design avoids stress concentration by using rounded corners in the tapering step portion 211, and the thinning design allows the connecting plate 210 to fit into the slot 301, resulting in more efficient operation.
[0029] In some embodiments, the receiving end 300 includes two block-shaped ear plates 310, with a slot 301 formed between the two ear plates 310, and the two ear plates 310 are arranged in parallel on both sides of the rod 100; the slot 301 is formed by utilizing the thickness of the rod 100, and the connecting plate 210 is efficiently installed in the slot 301 due to the design of the tapered step portion 211.
[0030] Specifically, the ear plate 310 is provided with a mating hole, and the connecting plate 210 is provided with a connecting hole 201.
[0031] The connecting plate 210 is arranged laterally, and the ear plate 310 is arranged in the same direction as the connecting plate 210. In this way, the connecting plate 210 is arranged laterally and in the same direction as the ear plate 310, which ensures that the force transmission path is more direct and smooth when adjacent rods 100 are connected. During the opening and closing of the gate, it can effectively avoid excessive local stress caused by uneven force, improve the stability and reliability of the overall structure, and extend the service life of the tie rod device.
[0032] Along the length of the rod 100, the connecting plate 210, the rod 100, and the ear plate 310 are arranged concentrically and coaxially; this allows the entire tie rod device to evenly distribute the load when under stress, avoiding eccentric stress and further enhancing the structural strength.
[0033] The width of the connecting plate 210 is greater than the width of the rod 100, and the width of the ear plate 310 is greater than the width of the rod 100; thus forming a stable connecting base, effectively improving the shear and torsional resistance of the connection parts of adjacent rods 100, and ensuring the normal operation of the gate rod under complex working conditions.
[0034] The outer end face of the connecting plate 210 is curved, and the outer end face of the rod 100 is also curved. In this way, the shape is similar to a household wrench, but both ends are curved and closed.
[0035] In a preferred embodiment, the connecting plate 210 is integrally formed with the rod 100. This reduces the welding or assembly steps between connecting components, which not only lowers the manufacturing process difficulty and production cost, but also eliminates potential weak points caused by component connections. This greatly improves the overall strength and rigidity of the rod 100, making the tie rod less prone to breakage or deformation when subjected to large tensile or compressive forces.
[0036] In a preferred embodiment, the two ear plates 310 are welded and fixed to the upper and lower sides of the rod 100, respectively. In this way, the symmetrical connection method can balance the force on the rod 100 in all directions, ensure that the tie rod maintains good straightness during use, and avoid bending deformation caused by uneven force.
[0037] In some embodiments, the lower part of the connecting shaft 400 passes through the mounting hole to form a lower section. A threaded hole 401 extends laterally through the lower section, and a bolt 410 is installed in the threaded hole 401. The bolt 410 is fixed to the threaded hole 401 by a nut. This prevents the connecting shaft 400 from loosening or falling off during use. When disassembly and maintenance are required, the connecting shaft 400 can be easily removed simply by unscrewing the nut and bolt 410, enabling quick disassembly. The operation is simple and fast, greatly improving the maintenance efficiency of the equipment.
[0038] In a preferred embodiment, a lifting lug 110 is provided on one side of the rod 100 to facilitate lifting the rod 100. The two lifting lugs 110 are flush and spaced apart, and the lifting lugs 110 are provided with lifting holes 111. This facilitates the transportation, installation, and turning of the device.
[0039] In some embodiments, multiple recessed reinforcing grooves are formed on the upper and lower surfaces of the rod 100. These grooves are strip-shaped and extend along the width of the rod 100, while the grooves are spaced apart along the length of the rod 100. This creates a transversely spaced "rib" structure on the steel plate surface, similar to the ridges of a washboard, by engraving reinforcing grooves along the width (short side). The ribs between each reinforcing groove evenly distribute the tensile force, preventing stress concentration at any one section from causing premature breakage.
[0040] Specifically, the depth of the reinforcing groove should be ≤ 1 / 5 of the steel plate thickness to avoid excessive weakening of the cross-section; the spacing between adjacent reinforcing grooves should be 2-3 times the groove width to ensure that the ribs have sufficient load-bearing capacity. Furthermore, the edges of the reinforcing grooves can be rounded to prevent stress concentration caused by sharp edges.
[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A flat gate pull rod arrangement, characterized in that The device comprises multiple steel plates forming a flat rod, which are connected end to end. One end of each rod has a connecting end, and the other end has a receiving end. The receiving end has a slot for the connecting ends of adjacent rods to be inserted. The adjacent rods are fixed together by a connecting structure.
2. The flat gate lever device as described in claim 1, characterized in that, The connecting end is provided with a longitudinal through-hole, and the receiving end is provided with a mating hole. The mating hole is aligned and connected with the connecting hole on the adjacent rod to form a mounting hole. The connecting structure includes a connecting shaft, which is fixedly inserted into the mounting hole.
3. The flat gate lever device as described in claim 2, characterized in that, The connecting end includes a block-shaped connecting plate, the inner end of which is connected to the inner end of the rod. The upper and lower sides of the connecting plate have converging step portions connected to the rod. Along the direction of the rod towards the connecting plate, the converging step portions gradually thin out and are rounded.
4. The flat gate lever device as described in claim 3, characterized in that, The receiving end includes two block-shaped ear plates, with a slot formed between the two ear plates, and the two ear plates are arranged parallel to each other on both sides of the rod body; The ear plate is provided with the docking hole, and the connecting plate is provided with the connecting hole.
5. The flat gate lever device as described in claim 4, characterized in that, The connecting plate is arranged laterally, and the ear plate is arranged in the same direction as the connecting plate.
6. The flat gate lever device as described in claim 4, characterized in that, Along the length of the rod, the connecting plate, the rod, and the ear plate are arranged concentrically and coaxially; the width of the connecting plate is greater than the width of the rod, and the width of the ear plate is greater than the width of the rod; the outer end face of the connecting plate is curved, and the outer end face of the rod is curved.
7. The flat gate lever device as described in claim 3, characterized in that, The connecting plate is integrally formed with the rod body.
8. The flat gate lever device as described in claim 4, characterized in that, The two ear plates are welded and fixed to the upper and lower sides of the rod, respectively.
9. The flat gate lever device as described in claim 2, characterized in that, The lower part of the connecting shaft passes through the mounting hole to form a lower section. The lower section is provided with a threaded hole that extends horizontally through the lower section. A bolt is installed in the threaded hole, and the bolt is fixed to the threaded hole by a nut.
10. The flat gate lever device according to any one of claims 1 to 9, characterized in that, The rod body is provided with a lifting lug on one side to facilitate lifting the rod body. The two lifting lugs are arranged at the same level and spaced apart. The lifting lugs are provided with lifting holes.