Lifting gate for hydraulic engineering
By designing protective components on the gate and using buffer springs and buffer plates to reduce impact force, the wear problem of traditional gates under the impact of debris is solved, and the impact resistance and maintenance convenience of the gate are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI DINGHAI WATER CONSERVANCY MASCH EQUIP CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional small gates are easily worn and deformed by the impact of debris in the water flow, which affects the sealing performance and service life, and increases maintenance costs.
The design incorporates protective components, including buffer springs and buffer plates, combined with a detachable structure, optimized plate thickness, and weight-reducing holes to enhance impact resistance and ease of maintenance.
It reduces gate wear and deformation, extends service life, lowers equipment costs, and improves equipment performance and ease of maintenance.
Smart Images
Figure CN224591409U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water conservancy and irrigation technology, specifically a lifting gate for water conservancy projects. Background Technology
[0002] In the field of water conservancy construction and operation, small gates are widely used in irrigation canals, small rivers and urban drainage systems as key facilities for regulating water flow and managing water levels.
[0003] However, some traditional small sluice gates currently on the market have revealed numerous problems in actual use, seriously affecting the normal operation and long-term benefits of water conservancy projects. In natural water flow environments, various debris such as silt, branches, and stones are often mixed in with the water. When the sluice gate is opened or closed, these debris impact the gate surface at high speed with the water flow. Traditional small sluice gates lack effective protective devices, and after long-term exposure to such impacts, the gate surface is prone to wear, dents, and even deformation. This not only damages the sluice gate's sealing performance, leading to water leakage and affecting the accuracy of water level control, but also shortens the sluice gate's service life and increases equipment replacement costs and maintenance frequency. Utility Model Content
[0004] To address the aforementioned problems, this application provides a lifting gate for hydraulic engineering. Considering that traditional gates are easily damaged by impacts from debris during operation, a protective component is designed. Utilizing the buffering effect of buffer springs and buffer plates, the impact force on the gate is reduced, improving the gate's impact resistance. The protective component is designed as a detachable structure, facilitating its installation, disassembly, and maintenance. Simultaneously, the structure of the protective plate is optimized by changing its thickness and creating weight-reducing holes, thereby reducing weight and costs while ensuring strength, and improving the overall performance and maintenance convenience of the equipment.
[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a lifting gate for water conservancy projects, including a base and a gate frame fixedly installed on the upper end of the base. A lifting component is installed in the middle of the upper end of the gate frame, and a gate is fixedly connected to the lower end of the lifting component. A protective component is detachably installed on the side of the gate. The protective assembly includes support plates, which are symmetrically installed on the upper side wall of the gate. A vertical shaft is fixedly connected to the upper end of the support plate, and a protective unit is slidably arranged on the outside of the vertical shaft. A limit cap is screwed to the upper end of the vertical shaft.
[0006] Preferably, the lower side of the base is symmetrically provided with reinforcing ribs, and a reinforcing rod is installed on the upper surface of the base near the end, with the upper end of the reinforcing rod installed on the side wall of the gate frame.
[0007] Preferably, a collection frame is symmetrically installed at the lower end of the side wall of the gate frame, and the bottom of the collection frame has a porous structure.
[0008] Preferably, the lifting assembly includes a drive motor, with the drive motor fixedly installed at the middle of the upper end of the gate frame, a threaded rod fixedly connected to the lower end of the drive motor, and a fixing plate installed on the inner side of the gate frame near the middle, with the lower end of the threaded rod rotatably mounted on the fixing plate.
[0009] Preferably, a lifting plate is screwed onto the threaded rod, and limit rods are symmetrically installed on both sides of the lifting plate. Limit grooves are symmetrically opened on the inner side wall of the gate frame, and the ends of the limit rods are slidably installed in the limit grooves. Vertical rods are symmetrically installed at the lower end of the lifting plate, and the lower ends of the vertical rods pass through the fixing plate and are fixedly connected to the gate.
[0010] Preferably, the protective unit includes a scraper, with a movable groove in the middle that slides with the vertical rod, and a protective plate fixedly connected to the end of the scraper. A buffer plate is fixedly connected to the side wall of the protective plate near the gate by several buffer springs.
[0011] Preferably, the thickness of the protective plate gradually decreases from the middle to the edge of the side wall away from the gate.
[0012] Preferably, the protective plate has weight-reducing holes arranged in a linear pattern inside, with the diameter of the weight-reducing holes gradually increasing from the edge to the center.
[0013] The beneficial effects of this utility model are as follows: (1) The lifting gate for water conservancy projects described in this utility model, with the cooperation of the threaded rod and the lifting plate in the lifting assembly, as well as the setting of the limit rod and the limit slide, ensures the stability and accuracy of the gate lifting process, reduces the shaking and jamming phenomenon during the gate lifting process, and the design of the collection frame can effectively collect debris in the water flow, prevent debris from entering the downstream river channel with the water flow, causing river blockage and environmental pollution, and meets the requirements of environmentally friendly water conservancy projects.
[0014] (2) The lifting gate for water conservancy projects described in this utility model has a protective component that effectively reduces the impact and wear of debris in the water flow on the gate. Through the buffering effect of the buffer spring and buffer plate, the impact force on the gate is reduced, and the service life of the gate is extended. The thickness of the protective plate gradually decreases from the middle to the edge of the side wall away from the gate. This design allows the protective plate to better disperse the impact force when it is impacted. The weight-reducing holes are arranged in a linear pattern inside, and the diameter gradually increases from the edge to the middle. While ensuring the strength of the protective plate, the weight of the protective plate is reduced, thereby reducing material costs and the overall weight of the equipment. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This utility model Figure 1 A schematic diagram of the three-dimensional structure from another perspective; Figure 3 This is a three-dimensional structural diagram of the filter assembly of this utility model after the collection frame has been removed; Figure 4 This utility model Figure 3 A schematic diagram of the three-dimensional structure from another perspective; Figure 5 In this utility model Figure 4 A magnified structural diagram at point A.
[0017] In the picture: 1. Base; 11. Reinforcing ribs; 12. Reinforcing rods; 2. Gate frame; 21. Collection frame; 3. Lifting assembly; 31. Drive motor; 32. Threaded rod; 33. Fixing plate; 34. Lifting plate; 35. Limiting rod; 36. Vertical rod; 4. Gate; 5. Protective components; 51. Support plate; 52. Vertical shaft; 53. Protective unit; 531. Scraper; 532. Movable groove; 533. Protective plate; 5331. Weight reduction hole; 534. Buffer spring; 535. Buffer plate; 54. Limiting cap. Detailed Implementation
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.
[0019] like Figure 1 - Figure 5 As shown, a lifting gate for water conservancy projects includes a base 1 and a gate frame 2 fixedly installed on the upper end of the base 1. A lifting component 3 is installed in the middle of the upper end of the gate frame 2, and a gate 4 is fixedly connected to the lower end of the lifting component 3.
[0020] The base 1 has symmetrical reinforcing ribs 11 on its lower side, and a reinforcing rod 12 is installed on the upper surface of the base 1 near the end. The upper end of the reinforcing rod 12 is installed on the side wall of the gate frame 2.
[0021] A collection frame 21 is symmetrically installed on the lower end of the side wall of the gate frame 2, and the bottom of the collection frame 21 has a porous structure.
[0022] The lifting assembly 3 includes a drive motor 31. The drive motor 31 is fixedly installed in the middle of the upper end of the gate frame 2. A threaded rod 32 is fixedly connected to the lower end of the drive motor 31. A fixing plate 33 is installed on the inner side of the gate frame 2 near the middle. The lower end of the threaded rod 32 is rotatably mounted on the fixing plate 33.
[0023] A lifting plate 34 is screwed onto the threaded rod 32. Limiting rods 35 are symmetrically installed on both sides of the lifting plate 34. Limiting grooves are symmetrically opened on the inner side wall of the gate frame 2. The ends of the limiting rods 35 are slidably installed in the limiting grooves. Vertical rods 36 are symmetrically installed at the lower end of the lifting plate 34. The lower end of the vertical rods 36 passes through the fixing plate 33 and is fixedly connected to the gate 4.
[0024] In specific operation: the base 1 can provide an installation position for the gate frame 2, thereby facilitating the installation of the lifting gate in the river channel; the reinforcing rib 11 can ensure the stability of the base 1 and improve its resistance to water flow impact; and the reinforcing plate 12 can further improve the firmness of the installation between the base 1 and the gate frame 2. When the gate needs to be opened or closed, the drive motor 31 is started, which drives the threaded rod 32 to rotate. Since the lifting plate 34 is screwed onto the threaded rod 32, and the limiting rods 35 on both sides of the lifting plate 34 are slidably installed in the limiting grooves on the inner side wall of the gate frame 2, the rotation of the lifting plate 34 is restricted, so that the lifting plate 34 can only move up and down along the threaded rod 32. The vertical rod 36 at the lower end of the lifting plate 34 drives the gate 4 to move up and down, thereby realizing the opening and closing of the gate.
[0025] The gate 4 is provided with a protective component 5 in a detachable manner on its side; the protective component 5 includes a support plate 51, the support plate 51 is symmetrically installed on the upper side wall of the gate 4, the upper end face of the support plate 51 is fixedly connected to a vertical shaft 52, a protective unit 53 is slidably arranged on the outside of the vertical shaft 52, and a limit cap 54 is screwed to the upper end of the vertical shaft 52.
[0026] The protective unit 53 includes a scraper 531, with a movable groove 532 in the middle of the scraper 531 that slides with the vertical shaft 52. A protective plate 533 is fixedly connected to the end of the scraper 531. A buffer plate 535 is fixedly connected to the side wall of the protective plate 533 near the gate 4 by several buffer springs 534.
[0027] The thickness of the protective plate 533 gradually decreases from the middle to the edge of the side wall away from the gate 4.
[0028] The protective plate 533 has linearly arranged weight-reducing holes 5331 inside, and the diameter of the weight-reducing holes 5331 gradually increases from the edge to the middle.
[0029] In specific operation: After the protective component 5 is installed, the buffer plate 535 abuts against the side wall of the gate 4. During the raising and lowering of the gate 4, the protective component 5 plays the role of protecting the gate 4. When the gate 4 is hit by debris in the water flow, the protective plate 533 first bears the impact force. Through the buffering effect of the buffer spring 534 and the buffer plate 535, the direct damage of the impact force to the gate 4 is reduced. At the same time, the movable groove 532 on the scraper 531 slides with the vertical shaft 52. When the water flow velocity changes, the reaction force of the buffer spring 534 will drive the protective plate 533 to adapt and change. The thickness of the protective plate 533 gradually decreases from the middle to the edge of the side wall to cope with the water flow, which can change the impact angle of the water flow and further reduce the wear of the protective plate 533 by the mud and sand in the water flow. The limit cap 54 prevents the protective unit 53 from slipping off the vertical shaft 52.
[0030] Working principle: The base 1 provides an installation position for the gate frame 2, which facilitates the installation of the lifting gate in the river channel. The reinforcing rib 11 ensures the stability of the base 1 and improves its resistance to water flow impact. The reinforcing plate 12 further improves the firmness of the installation between the base 1 and the gate frame 2. When it is necessary to open or close the gate, the drive motor 31 is started. The drive motor 31 drives the threaded rod 32 to rotate. Since the lifting plate 34 is screwed onto the threaded rod 32, and the limiting rods 35 on both sides of the lifting plate 34 are slidably installed in the limiting grooves on the inner side wall of the gate frame 2, the rotation of the lifting plate 34 is restricted, so that the lifting plate 34 can only move up and down along the threaded rod 32. The vertical rod 36 at the lower end of the lifting plate 34 drives the gate 4 to move up and down, thereby realizing the opening and closing of the gate. After the protective component 5 is installed, the buffer plate 535 abuts against the side wall of the gate 4. During the raising and lowering of the gate 4, the protective component 5 plays the role of protecting the gate 4. When the gate 4 is hit by debris in the water flow, the protective plate 533 first bears the impact force. Through the buffering effect of the buffer spring 534 and the buffer plate 535, the direct damage of the impact force to the gate 4 is reduced. At the same time, the movable groove 532 on the scraper 531 slides with the vertical shaft 52. When the water flow velocity changes, the reaction force of the buffer spring 534 will drive the protective plate 533 to adapt and change. The thickness of the protective plate 533 gradually decreases from the middle to the edge of the side wall to the water flow, which can change the impact angle of the water flow and further reduce the wear of the protective plate 533 by the mud and sand in the water flow. The limit cap 54 prevents the protective unit 53 from slipping off the vertical shaft 52. The collection frames 21, which are symmetrically installed on the lower side wall of the gate frame 2, are used to collect debris carried in the water flow. The bottom of the collection frame 21 has a porous structure, which allows water to pass through while the debris is trapped inside the collection frame 21. Regularly cleaning the collection frame 21 can prevent the accumulation of debris from affecting the normal operation of the gate and the smooth flow of the river.
[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A lifting gate for hydraulic engineering, comprising a base (1) and a gate frame (2) fixedly arranged at the upper end of the base (1), characterized in that, The gate frame (2) is equipped with a lifting assembly (3) at the upper middle part, and a gate (4) is fixedly connected to the lower end of the lifting assembly (3). A protective assembly (5) is provided on the side of the gate (4) in a detachable manner. The protective component (5) includes Support plate (51) is symmetrically installed on the upper side wall of the gate (4); The vertical shaft (52) is fixedly connected to the end of the upper surface of the support plate (51); The protective unit (53) is slidably provided on the outside of the vertical axis (52); Limit cap (54), the upper end of the vertical shaft (52) is screwed with limit cap (54).
2. A vertical-lift gate for hydraulic structures as claimed in claim 1, characterized in that: The base (1) is symmetrically provided with reinforcing ribs (11) at the lower side, and a reinforcing rod (12) is installed on the upper surface of the base (1) near the end. The upper end of the reinforcing rod (12) is installed on the side wall of the gate frame (2).
3. A vertical-lift gate for hydraulic structures as claimed in claim 1, characterized in that: The gate frame (2) is symmetrically equipped with a collection frame (21) at the lower end of the side wall, and the bottom of the collection frame (21) has a porous structure.
4. The lift gate for hydraulic structures as claimed in claim 1, wherein: The lifting assembly (3) includes a drive motor (31), the drive motor (31) is fixedly installed in the middle of the upper end of the gate frame (2), the lower end of the drive motor (31) is fixedly connected to a threaded rod (32), a fixing plate (33) is installed on the inner side of the gate frame (2) near the middle, and the lower end of the threaded rod (32) is rotatably mounted on the fixing plate (33).
5. A vertical-lift gate for hydraulic structures as claimed in claim 4, characterized in that: A lifting plate (34) is screwed onto the threaded rod (32). Limiting rods (35) are symmetrically installed on both sides of the lifting plate (34). Limiting grooves are symmetrically opened on the inner side wall of the gate frame (2). The end of the limiting rod (35) is slidably installed in the limiting groove. A vertical rod (36) is symmetrically installed at the lower end of the lifting plate (34). The lower end of the vertical rod (36) passes through the fixing plate (33) and is fixedly connected to the gate (4).
6. A vertical-lift gate for hydraulic structures as claimed in claim 1, characterized in that: The protective unit (53) includes a scraper (531), with a movable groove (532) in the middle of the scraper (531) that slides with the vertical shaft (52), and a protective plate (533) fixedly connected to the end of the scraper (531). A buffer plate (535) is fixedly connected to the side wall of the protective plate (533) near the gate (4) by several buffer springs (534).
7. A vertical-lift gate for hydraulic structures as claimed in claim 6, characterized in that: The thickness of the protective plate (533) gradually decreases from the middle to the edge of the side wall away from the gate (4).
8. A vertical-lift gate for hydraulic structures as claimed in claim 6, characterized in that: The protective plate (533) has weight-reducing holes (5331) arranged in a linear pattern inside, and the diameter of the weight-reducing holes (5331) gradually increases from the edge to the middle.