A bottom-shaft driven tilting steel gate

Abstract

This utility model discloses a bottom-shaft driven tilting steel gate, belonging to the technical field of steel gates. Its key technical features include a steel gate body, a hydraulic cylinder mounted on the rear side of the gate body, a scraping mechanism mounted on the front side of the gate body, rotating sleeves on both sides of the bottom of the gate body, and a rotating shaft fixedly connected to the bottom of the gate body. The rotating shaft is rotatably connected inside the rotating sleeves. Protective layers are provided on the surface of the gate body, the rotating shaft, and the rotating shaft. This invention solves the problem that some existing bottom-shaft driven tilting steel gates lack a structure for quickly cleaning attached algae and shellfish on their water-facing surface. The long-term accumulation of algae and shellfish easily increases the weight of the steel gate, increases the burden on the drive system, and easily increases water flow resistance, leading to abnormal vibration of the steel gate and long-term bolt loosening.

Description

Technical Field

[0001] This utility model relates to the field of steel gate technology, and in particular to a bottom shaft driven tilting steel gate. Background Technology

[0002] Bottom-shaft driven tilting steel gate is a steel control structure that uses the bottom horizontal shaft as the rotation center and a drive device to achieve the tilting motion of the gate leaf. It is mainly used in water conservancy projects for regulating water level, controlling flow, blocking water and releasing water, and has the characteristics of compact structure, flexible operation and strong adaptability.

[0003] In the existing technology, the gate is movably connected to the dam foundation. During the manufacturing process of the dam foundation, due to its long span, the cost is high and the operation is complicated after one-time casting. At the same time, the dam foundation after one-piece casting is prone to cracking, which reduces the stability of the gate operation.

[0004] The existing patent (publication number: CN221297772U) discloses a hydraulic steel gate for ecological regulation and storage. This utility model uses segmented casting of the base platform, which makes the base platform easy to cure and form during the casting process. The operation is simple and convenient, ensuring the structural strength of the base platform and thus improving the stability of the gate operation. Several base platforms are connected by a connecting mechanism to form a dam foundation, ensuring the integrity of the dam foundation.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, the water-facing surface of some existing bottom-shaft driven tilting steel gates does not have a structure that facilitates the rapid cleaning of attached algae and shellfish. The long-term accumulation of algae and shellfish can easily increase the weight of the steel gate, increase the burden on the drive system, and increase water flow resistance, leading to abnormal vibration of the steel gate and long-term bolt loosening.

[0006] To address this, a bottom-shaft driven tilting steel gate is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a bottom-shaft driven tilting steel gate, which solves the problem that some existing bottom-shaft driven tilting steel gates do not have a structure that facilitates the rapid cleaning of attached algae and shellfish on the water-facing surface. The long-term accumulation of algae and shellfish can easily increase the weight of the steel gate, increase the burden on the drive system, and increase the water flow resistance, leading to abnormal vibration of the steel gate and the problem of bolt loosening over time.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a bottom-shaft driven tilting steel gate, comprising a steel gate body, a hydraulic cylinder provided on the rear side of the steel gate body, a scraping mechanism provided on the front side of the steel gate body, rotating sleeves provided on both sides of the bottom of the steel gate body, a rotating shaft fixedly connected to the bottom of the steel gate body, the rotating shaft being rotatably connected inside the rotating sleeve, and a protective layer provided on the surfaces of the steel gate body, the rotating shaft, and the rotating sleeve;

[0009] The scraping mechanism includes a connecting bar, two pull rods, a scraper, and two sliders. The slider is fixedly connected to the scraper on the side closest to it. The bottom of the pull rod is fixedly connected to the top of the slider. The top of the pull rod is fixedly connected to the bottom of the connecting bar. The rear side of the scraper contacts the front side of the steel gate body.

[0010] Preferably, the protective layer includes a primer layer, a middle coat layer, and a top coat layer. The primer layer is uniformly coated on the surface of the steel gate body, and the primer layer is made of epoxy zinc-rich coating.

[0011] Preferably, the intermediate paint layer is uniformly coated on the surface of the primer layer, and the material of the intermediate paint layer is epoxy micaceous iron oxide coating.

[0012] Preferably, the topcoat layer is uniformly coated on the surface of the intermediate coat layer, and the material of the topcoat layer is an aliphatic polyurethane coating.

[0013] Preferably, the steel gate body has sliding grooves on both sides, and the slider is slidably connected inside the sliding grooves.

[0014] Preferably, a pull ring is fixedly connected to the top of the connecting strip, a pull cable is bolted to the surface of the pull ring, and a counterweight is fixedly connected to the bottom of the scraper.

[0015] Preferably, the telescopic end of the hydraulic cylinder is rotatably connected to a first rotating frame, the front side of the first rotating frame is fixedly connected to the rear side of the steel gate body, and the surface of the hydraulic cylinder is rotatably connected to a second rotating frame.

[0016] Preferably, a water-blocking strip is fixedly connected to the bottom of the rotating shaft.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application, by setting up a scraping mechanism, guides the scraper through a chute and uses an external winch to wind up the cable, thereby moving the scraper upward. This can efficiently scrape off algae and shellfish attached to the front side of the steel gate body without requiring personnel to enter the water, making it convenient and safe. It avoids the problems of increased weight, increased resistance, and abnormal vibration on the water-facing surface of the gate body caused by algae and shellfish attachment.

[0019] 2. This application sets up a protective layer consisting of epoxy zinc-rich primer, epoxy micaceous iron oxide intermediate paint, and aliphatic polyurethane topcoat. The three layers work together to provide basic corrosion protection, wear resistance, impermeability, weather resistance, and water resistance for the steel gate body, shaft, and sleeve, effectively improving the structural durability. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the bottom shaft driven tilting steel gate of this utility model;

[0021] Figure 2 This is a three-dimensional structural diagram of the rear side of the steel gate body in this utility model;

[0022] Figure 3 This is a three-dimensional exploded view of the slider and scraper in this utility model;

[0023] Figure 4 This is a three-dimensional connection diagram of the transfer sleeve of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the steel gate body of this utility model;

[0025] Figure 6 This utility model Figure 5 A magnified view of a section at point A in the middle;

[0026] Figure 7 This is a cross-sectional view of the steel gate body of this utility model.

[0027] In the diagram, 1. Steel gate body; 2. Scraping mechanism; 201. Connecting bar; 202. Pull rod; 203. Scraper; 204. Sliding block; 3. Water-blocking bar; 4. Rotating shaft; 5. Rotating sleeve; 6. Hydraulic cylinder; 7. Second rotating frame; 8. Cable; 9. Protective layer; 901. Primer layer; 902. Intermediate paint layer; 903. Topcoat layer; 10. Pull ring; 11. Counterweight bar; 12. Slide groove; 13. First rotating frame. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-7 The present invention provides the following technical solution:

[0030] A bottom-shaft driven tilting steel gate includes a steel gate body 1, a hydraulic cylinder 6 is provided on the rear side of the steel gate body 1, a scraping mechanism 2 is provided on the front side of the steel gate body 1, a rotating sleeve 5 is provided on both sides of the bottom of the steel gate body 1, a rotating shaft 4 is fixedly connected to the bottom of the steel gate body 1, the rotating shaft 4 is rotatably connected inside the rotating sleeve 5, and a protective layer 9 is provided on the surface of the steel gate body 1, the rotating shaft 4 and the rotating sleeve 5.

[0031] The scraping mechanism 2 includes a connecting bar 201, two pull rods 202, a scraper 203, and two sliders 204. The side of the slider 204 near the scraper 203 is fixedly connected to the scraper 203. The bottom of the pull rod 202 is fixedly connected to the top of the slider 204. The top of the pull rod 202 is fixedly connected to the bottom of the connecting bar 201. The rear side of the scraper 203 contacts the front side of the steel gate body 1.

[0032] In this embodiment: the rotating shaft 4 at the bottom of the steel gate body 1 is rotatably connected to the inside of the rotating sleeve 5. The second rotating frame 7 and the rotating sleeve 5 are connected to the precast concrete base by external expansion bolts, providing stable support for the entire gate. The hydraulic cylinder 6 is controlled to extend and retract via an external hydraulic system connected to the left interface. Its extension and retraction end is fixed to the rear side of the steel gate body 1 by the first rotating frame 13, which is rotatably connected to the surface, and the second rotating frame 7 is rotatably connected to the surface. When the hydraulic system drives the hydraulic cylinder 6 to extend and retract, it drives the steel gate body 1 to rotate around the rotating shaft 4 inside the rotating sleeve 5, realizing the opening and closing action of the steel gate body 1 driven by the bottom shaft. In the protective layer 9 on the surface of the steel gate body 1, the rotating shaft 4, and the rotating sleeve 5, the epoxy zinc-rich primer provides basic corrosion protection and wear resistance, the epoxy micaceous iron oxide intermediate paint enhances impermeability and thickness, and the aliphatic polyurethane topcoat provides weather resistance, wear resistance, and water resistance protection. The three layers work together to form effective protection. When the scraping mechanism 2 on the front side of the steel gate body 1 is working, the sliding grooves 12 on both sides provide... The slider 204 guides the external winch, which winds up the cable 8, driving the connecting bar 201, pull rod 202, slider 204, and counterweight bar 11 to move upwards. This causes the scraper 203 to move along the front side of the steel gate body 1, scraping away algae and shellfish attached to the water-facing surface of the steel gate body 1. When lowered, the counterweight bar 11 drives the scraper 203 to slide down and reset. The water-blocking strip 3 at the bottom of the rotating shaft 4 rotates with the rotating shaft 4, enhancing the bottom sealing. This design allows workers to clean algae and shellfish attached to the water-facing surface of the steel gate body 1 without entering the water. It is efficient, convenient, and safe. It solves the problem that some existing bottom-shaft driven tilting steel gates do not have a structure that can quickly clean attached algae and shellfish on the water-facing surface. The long-term accumulation of algae and shellfish can easily increase the weight of the steel gate, increase the burden on the drive system, and easily increase the water flow resistance, causing the steel gate to vibrate abnormally and the bolts to loosen over time.

[0033] Specifically, such as Figure 7As shown, the protective layer 9 includes a primer layer 901, a middle paint layer 902, and a topcoat layer 903. The primer layer 901 is uniformly coated on the surface of the steel gate body 1, and the material of the primer layer 901 is epoxy zinc-rich coating.

[0034] Specifically, such as Figure 7 As shown, the intermediate paint layer 902 is uniformly coated on the surface of the primer layer 901, and the material of the intermediate paint layer 902 is epoxy micaceous iron oxide coating.

[0035] Specifically, such as Figure 7 As shown, the topcoat layer 903 is uniformly coated on the surface of the intermediate coat layer 902, and the material of the topcoat layer 903 is an aliphatic polyurethane coating.

[0036] In this embodiment, the protective layer 9 consists of an epoxy zinc-rich primer layer 901, an epoxy micaceous iron oxide intermediate coat layer 902, and an aliphatic polyurethane topcoat layer 903. The three layers are applied sequentially to synergistically enhance the corrosion resistance, impermeability, wear resistance, and weather resistance of the steel gate body 1, the rotating shaft 4, and the rotating sleeve 5, effectively extending their service life.

[0037] Specifically, such as Figure 3 and Figure 6 As shown, both sides of the steel gate body 1 are provided with sliding grooves 12, and the slider 204 is slidably connected inside the sliding grooves 12.

[0038] Specifically, such as Figure 3 As shown, a pull ring 10 is fixedly connected to the top of the connecting strip 201, and a pull cable 8 is bolted to the surface of the pull ring 10. A counterweight strip 11 is fixedly connected to the bottom of the scraper strip 203.

[0039] In this embodiment: the sliding grooves 12 on both sides of the steel gate body 1 provide stable guidance for the slider 204. The pull ring 10 and the pull cable 8 can be wound up by an external winch device, which drives the scraper 203 to move upward, effectively scraping away algae and shellfish attached to the water-facing surface of the steel gate body 1. This can clean the water-facing surface of the steel gate body 1 in time and avoid the problem of abnormal vibration caused by uneven obstruction of the steel gate body 1, which affects its service life.

[0040] Specifically, such as Figure 2 As shown, the telescopic end of the hydraulic cylinder 6 is rotatably connected to the first rotating frame 13, the front side of the first rotating frame 13 is fixedly connected to the rear side of the steel gate body 1, and the surface of the hydraulic cylinder 6 is rotatably connected to the second rotating frame 7.

[0041] Specifically, such as Figure 1 and Figure 2 As shown, a water-blocking strip 3 is fixedly connected to the bottom of the rotating shaft 4.

[0042] In this embodiment: the hydraulic cylinder 6 is flexibly connected to the steel gate body 1 and the precast concrete base through the first rotating frame 13 and the second rotating frame 7, ensuring the stable opening and closing of the steel gate body 1, and the water-blocking strip 3 enhances the sealing of the bottom of the rotating shaft 4 and improves the water-blocking effect of the gate.

[0043] Working principle: The rotating shaft 4 at the bottom of the steel gate body 1 is rotatably connected to the inside of the rotating sleeve 5. The second rotating frame 7 and the rotating sleeve 5 are connected to the precast concrete base through external expansion bolts, providing stable rotational support for the entire steel gate body 1. The hydraulic cylinder 6 is controlled by an external hydraulic system connected to the left interface. Its telescopic end is fixed to the rear side of the steel gate body 1 via the first rotating frame 13, which is rotatably connected. The surface of the hydraulic cylinder 6 is also rotatably connected to the second rotating frame 7. When the hydraulic system drives the hydraulic cylinder 6 to extend or retract, it will drive the steel gate body 1 to rotate around the rotating shaft 4 inside the rotating sleeve 5, realizing the opening and closing action of the steel gate body 1 driven by the bottom shaft. In the protective layer 9 on the surfaces of the body 1, shaft 4, and sleeve 5, the primer layer 901 is uniformly coated with epoxy zinc-rich paint on the surface of the steel gate body 1, providing basic corrosion resistance and wear resistance to the substrate. The intermediate paint layer 902 is uniformly coated with epoxy micaceous iron oxide paint on the surface of the primer layer 901, enhancing the coating's impermeability and thickness. The topcoat layer 903 is coated with aliphatic polyurethane paint on the surface of the intermediate paint layer 902, providing weather resistance, wear resistance, and water resistance. The three layers work together to form effective protection. When the scraping mechanism 2 on the front side of the steel gate body 1 is working, the sliding grooves 12 on both sides of the steel gate body 1 provide sliding guidance for the slider 204. The connecting strip 201... A cable 8 is attached to the top pull ring 10. When the cable 8 is wound up by an external winch, it causes the connecting bar 201, pull rod 202, slider 204, and counterweight 11 to move upwards. This causes the scraper 203, fixed to the slider 204, to move along the front side of the steel gate body 1, thus scraping away algae and shellfish attached to the front. When the scraper 203 is lowered, the weight of the counterweight 11 causes it to slide back down and return to its original position. Simultaneously, the water-blocking strip 3 at the bottom of the rotating shaft 4 rotates with the rotation of the shaft 4, enhancing the sealing of the bottom of the steel gate body 1. This allows for the sealing of the steel gate body 1 without personnel entering the water. The system effectively and conveniently cleans algae and shellfish attached to the water surface, improving safety and preventing abnormal vibrations caused by uneven obstruction of the steel gate body 1. It also solves the problem that some existing bottom-shaft driven tilting steel gates lack a structure that facilitates rapid cleaning of attached algae and shellfish on the water-facing side. The long-term accumulation of algae and shellfish can easily increase the weight of the steel gate, increase the burden on the drive system, and increase water flow resistance, leading to abnormal vibrations and long-term bolt loosening. It should be noted that the hydraulic cylinder 6 is a mature technology that has been published, and its basic mechanism will not be elaborated here.

[0044] The above are merely preferred embodiments of the present utility model and are 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 bottom shaft driven tilting steel gate comprising a steel gate body (1), characterized in that: A hydraulic cylinder (6) is provided on the rear side of the steel gate body (1), a scraping mechanism (2) is provided on the front side of the steel gate body (1), a rotating sleeve (5) is provided on both sides of the bottom of the steel gate body (1), a rotating shaft (4) is fixedly connected to the bottom of the steel gate body (1), the rotating shaft (4) is rotatably connected to the inside of the rotating sleeve (5), and a protective layer (9) is provided on the surface of the steel gate body (1), the rotating shaft (4) and the rotating sleeve (5); The scraping mechanism (2) includes a connecting bar (201), two pull rods (202), a scraper (203), and two sliders (204). The slider (204) is fixedly connected to the scraper (203) on the side closest to the scraper (203). The bottom of the pull rod (202) is fixedly connected to the top of the slider (204). The top of the pull rod (202) is fixedly connected to the bottom of the connecting bar (201). The rear side of the scraper (203) contacts the front side of the steel gate body (1).

2. A bottom axle driven tilting steel gate according to claim 1, characterized in that: The protective layer (9) includes a primer layer (901), a middle paint layer (902) and a topcoat layer (903). The primer layer (901) is uniformly coated on the surface of the steel gate body (1). The primer layer (901) is made of epoxy zinc-rich coating.

3. A bottom axle driven tilting steel gate according to claim 2, characterized in that: The intermediate paint layer (902) is uniformly coated on the surface of the primer layer (901), and the material of the intermediate paint layer (902) is epoxy micaceous iron oxide coating.

4. A bottom axle driven tilting steel gate according to claim 2, characterized in that: The topcoat layer (903) is uniformly coated on the surface of the intermediate coat layer (902), and the material of the topcoat layer (903) is an aliphatic polyurethane coating.

5. A bottom axle driven tilting steel gate according to claim 1, characterized in that: The steel gate body (1) has sliding grooves (12) on both sides, and the slider (204) is slidably connected inside the sliding groove (12).

6. A bottom axle driven roll top steel flood gate according to claim 1 wherein: A pull ring (10) is fixedly connected to the top of the connecting strip (201), and a pull cable (8) is bolted to the surface of the pull ring (10). A counterweight strip (11) is fixedly connected to the bottom of the scraper (203).

7. A bottom axle driven tilting steel gate according to claim 1, characterized in that: The telescopic end of the hydraulic cylinder (6) is rotatably connected to a first rotating frame (13), the front side of the first rotating frame (13) is fixedly connected to the rear side of the steel gate body (1), and the surface of the hydraulic cylinder (6) is rotatably connected to a second rotating frame (7).

8. The bottom axle driven roll top steel flood gate according to claim 1, wherein: A water-blocking strip (3) is fixedly connected to the bottom of the rotating shaft (4).

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