A steel dam gate anti-collapse safety device
By introducing locking components and auxiliary support components into the anti-collapse safety device of the steel dam gate, the problem of block swaying was solved, the stability of the locking plug and the stability of the support bottom shaft were achieved, and the safety of the steel dam gate was ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIAN HAIWEI PRECISION MACHINERY CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-26
AI Technical Summary
In existing steel dam gate anti-collapse safety devices, the stop blocks lack a limiting structure, which makes them prone to shaking during the stress process and affects the locking stability.
The locking assembly includes a locking wheel, a follower plate, a hydraulic cylinder, a displacement sensor, and a locking plug. The hydraulic cylinder drives the follower plate to move, causing the locking plug to engage in the locking groove. Combined with the limit guide rail and reinforcing plate, the stability of the locking plug is ensured. The auxiliary support assembly improves the stability of the support shaft through the support base and auxiliary support ring.
This effectively prevents the steel dam gate from shaking and collapsing during long-term parking, improves the stability of the locking plug and the stability of the supporting bottom shaft, and ensures the safety and reliability of the steel dam gate.
Smart Images

Figure CN224412465U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel dam gate technology, specifically a steel dam gate anti-collapse insurance device. Background Technology
[0002] A steel dam gate is a water conservancy facility used to control water flow. It is usually installed in water bodies such as rivers, reservoirs, and irrigation canals to control water flow and water level. In order to ensure that the steel dam gate remains in the required position for a long time, an anti-collapse safety device is installed at the designated position of the steel dam gate for locking protection.
[0003] In the prior art, a steel dam gate anti-collapse safety device with announcement number "CN216765784U" vertically transmits the load-bearing force to the ground concrete through a crank arm, which is safe and reliable. The gear-shaped groove is an open groove, so there is no possible obstruction around the stop when the brake is released, thus preventing release failure to the greatest extent.
[0004] However, the above technical solutions and existing technologies have the following drawbacks:
[0005] Although the safety device can brake and lock the steel dam gate, the stop block in the device does not have a corresponding limiting structure. It only relies on the hydraulic cylinder to move and limit its movement, which makes the stop block prone to shaking during the force process. Therefore, the locking stability needs to be improved. Utility Model Content
[0006] The purpose of this utility model is to provide a steel dam gate anti-collapse insurance device to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A steel dam gate anti-collapse safety device includes a steel gate plate, a supporting bottom shaft, a shaft base, and a crank arm. The supporting bottom shaft is located at the bottom of the steel gate plate. Shaft bases are installed on both the left and right sides of the annular side of the supporting bottom shaft. A crank arm is located on the right side of the annular side of the supporting bottom shaft, and a locking component is located on the right side of the crank arm for auxiliary locking of the supporting base. An auxiliary support component is located at the right end of the supporting bottom shaft for auxiliary support of the right end of the supporting bottom shaft. The locking component includes a locking wheel, a concrete base, a follower plate, a supporting base plate, a tail support plate, and a hydraulic... The system includes a hydraulic cylinder, a displacement sensor, and a locking plug. A locking wheel is located on the right side of the annular side of the support shaft. Multiple locking grooves are evenly spaced on the upper side of the annular side of the locking wheel. A concrete base is cast behind the support shaft. A support base plate is installed on the upper surface of the concrete base. A tail support plate is fixedly connected to the rear side of the upper surface of the support base plate. A hydraulic cylinder is installed on the front end of the tail support plate. A follower plate is connected to the front end of the hydraulic cylinder. A locking plug is located on the front end of the follower plate, and the locking plug matches the locking grooves. A displacement sensor is installed in the middle of the upper surface of the follower plate.
[0009] Preferably, a limiting guide rail is fixedly connected to the front side of the upper end face of the supporting substrate, and the limiting guide rail is T-shaped. Limiting guide grooves are symmetrically opened on the left and right sides of the lower end face of the follower plate, and the limiting guide grooves match the limiting guide rail.
[0010] Preferably, the auxiliary support assembly includes an extension shaft, an auxiliary support ring, and a support base. The extension shaft is connected to the middle position of the right end face of the support base shaft. A reinforcing ring is fixedly connected to the connection between the extension shaft and the support base shaft. An auxiliary support ring is installed on the right side of the annular side of the extension shaft. The support base is fixedly connected to the bottom of the auxiliary support ring.
[0011] Preferably, a reinforcing ring is fixedly connected at the connection between the extension shaft and the supporting bottom shaft, and the inner diameter of the auxiliary support ring is the same as the outer diameter of the extension shaft.
[0012] Preferably, the tail support plate is symmetrically and fixedly connected to the front and rear ends with a first reinforcing plate, and the follower plate is symmetrically and fixedly connected to the left and right sides of the front end face with a second reinforcing plate. The first and second reinforcing plates are both right-angled triangles.
[0013] Preferably, the lower end face of both the follower plate and the locking plug is in contact with the upper end face of the support substrate.
[0014] Preferably, a reinforcing plate is fixedly connected to the side of the locking wheel, and the multiple locking grooves are of the same specification.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. By controlling the extension of the hydraulic cylinder, the follower plate can move the locking plug forward and lock it in the corresponding locking groove. In this way, the steel gate is locked by the locking wheel and the support bottom shaft, thereby preventing the steel gate from shaking and collapsing during long-term parking. The fixedly connected limit guide rail can also limit and guide the follower plate through the limit guide groove. The second reinforcing plate can also improve the connection stability between the locking plug and the follower plate, thereby ensuring the stability of the locking plug in use.
[0017] 2. By installing the support base and auxiliary support ring, the right end of the support base shaft can be auxiliaryly supported and limited by the extension shaft, preventing the support base shaft from shaking during use. In addition, the fixed connection of the reinforcing ring can improve the connection stability between the extension shaft and the support base shaft, thereby ensuring the stability of the support base shaft during use. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0019] Figure 2 for Figure 1 Enlarged view of A in the middle;
[0020] Figure 3 This is a partial structural diagram of the locking component in this utility model;
[0021] Figure 4 This is a structural diagram of the follower plate and locking plug in this utility model.
[0022] In the diagram: 1. Steel gate; 2. Supporting bottom shaft; 3. Shaft base; 4. Crank arm; 5. Locking assembly; 51. Locking wheel; 52. Reinforcing plate; 53. Concrete base; 54. Follower plate; 541. Second reinforcing plate; 55. Limiting guide rail; 56. Support base plate; 57. Tail support plate; 571. First reinforcing plate; 58. Hydraulic cylinder; 59. Displacement sensor; 511. Locking plug; 512. Locking groove; 513. Limiting guide groove; 6. Auxiliary support assembly; 61. Reinforcing ring; 62. Extension shaft; 63. Auxiliary support ring; 64. Support base. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-4 This utility model provides a technical solution:
[0025] Example 1:
[0026] A steel dam gate anti-collapse safety device includes a steel gate plate 1, a supporting bottom shaft 2, shaft bases 3, and a crank arm 4. The supporting bottom shaft 2 is installed at the bottom of the steel gate plate 1. The supporting bottom shaft 2, crank arm 4, locking wheel 51, and extension shaft 62 are all made of the same material as the steel gate plate 1. The supporting bottom shaft 2 is connected to the steel gate plate 1, crank arm 4, locking wheel 51, and extension shaft 62 by welding. The supporting bottom shaft 2 not only supports the steel gate plate 1 but also enables the steel gate plate 1 to swing back and forth for opening and closing. Shaft bases 3 are installed on both the left and right sides of the annular side of the supporting bottom shaft 2. The bottom of the shaft bases 3 is fixed to a designated position in the concrete foundation pit by high-strength expansion bolts. The shaft base 3 can support and limit the support shaft 2, preventing the support shaft 2 from easily swaying and displacing during use. A crank arm 4 is provided on the right side of the annular side of the support shaft 2. The upper end of the crank arm 4 is movably connected to the external hydraulic hoist (not shown in the figure). The crank arm 4 allows the external hydraulic hoist to drive the steel gate 1 to swing back and forth through the support shaft 2 for opening and closing. Concrete retaining walls are poured on both sides of the steel gate 1 (not shown in the figure) to prevent river water in the river from entering the locking component 5 and the auxiliary support component 6. Since the detailed working principle and internal structure of the steel dam gate are relatively mature technologies in the existing technology, they will not be described in detail here.
[0027] A locking component 5 is provided on the right side of the crank arm 4, and the locking component 5 is used to assist in locking the support base 64 to prevent the steel dam gate from collapsing during use. An auxiliary support component 6 is provided on the right end of the support bottom shaft 2, and the auxiliary support component 6 is used to provide auxiliary support to the right end of the support bottom shaft 2, thereby further improving the stability of the right end of the support bottom shaft 2 and preventing the right end of the locking component 5 from shaking or jumping during the locking process of the support bottom shaft 2.
[0028] Locking assembly 5 includes a locking wheel 51, a concrete base 53, a follower plate 54, a support base plate 56, a tail support plate 57, a hydraulic cylinder 58, a displacement sensor 59, and a locking plug 511. The locking wheel 51 is located on the right side of the annular side of the support shaft 2. Multiple locking grooves 512, all of the same size, are evenly spaced on the upper side of the annular side of the locking wheel 51. The locking wheel 51, with its multiple locking grooves 512 evenly spaced on the upper side of the annular side, facilitates the locking plug 511's control over the wheel when it swings to different positions. The steel gate plate 1 is locked, and a concrete base 53 is poured behind the support shaft 2. The bottom of the concrete base 53 is poured in an external concrete pit. The concrete base 53 can provide stable support for the support plate 56. The support plate 56 is installed on the upper surface of the concrete base 53. The support plate 56 is installed and fixed to the upper surface of the concrete base 53 by external high-strength assembly bolts. The support plate 56 can support the tail support plate 57, the limit guide rail 55, the follower plate 54 and the locking plug 511 respectively.
[0029] A tail support plate 57 is fixedly connected to the rear side of the upper end face of the support base plate 56. The tail support plate 57 is connected to the support base plate 56 by welding. The tail support plate 57 can support the hydraulic cylinder 58. The hydraulic cylinder 58 is installed on the front end face of the tail support plate 57. The hydraulic cylinder 58 is connected to an external hydraulic station through a high-pressure oil pipe. When the hydraulic cylinder 58 is working, it can drive the follower plate 54 to move back and forth. The follower plate 54 is connected to the front end of the hydraulic cylinder 58. The follower plate 54 and the locking plug 511 are integrated into one structure. The follower plate 54 can support the locking plug 511. The front end face of the follower plate 54 is provided with the locking plug 511, and the locking plug 511 matches the locking groove 512. The lower end face of the locking plug 511 is in contact with the upper end face of the support base plate 56. After the locking plug 511 is inserted into the corresponding locking groove 512, it can lock the locking wheel 51. A displacement sensor 59 is installed in the middle of the upper end face of the follower plate 54. The displacement sensor 59 is connected to the external programmable logic controller via a signal line. The displacement sensor 59 can sense the displacement range of the follower plate 54 in real time and transmit it to the external programmable logic controller so that the operator can know the displacement action of the follower plate 54 with the help of the external programmable logic controller. Since the internal detailed structure and working principle of the displacement sensor 59 are relatively mature technologies in the prior art, they will not be described in detail here.
[0030] A limiting guide rail 55 is fixedly connected to the front side of the upper end face of the support base plate 56. The limiting guide rail 55 is T-shaped and is connected to the support base plate 56 by welding. Limiting guide grooves 513 are symmetrically formed on the left and right sides of the lower end face of the follower plate 54. The limiting guide grooves 513 match the limiting guide rails 55. The matching limiting guide grooves 513 and the limiting guide rails 55 can limit the movement of the follower plate 54, preventing it from shifting or shaking during use, thus ensuring the locking stability of the locking plug 511. A first reinforcing plate 571 is symmetrically fixedly connected to the front and rear ends of the tail support plate 57. The first reinforcing plate 571 is connected to both the tail support plate 57 and the support base plate 56 by welding. 4. A second reinforcing plate 541 is symmetrically fixedly connected to the left and right sides of the front end face. The second reinforcing plate 541 is connected to the follower plate 54 and the locking plug 511 by welding. The first reinforcing plate 571 and the second reinforcing plate 541 are both right-angled triangles. The first reinforcing plate 571, which is a right-angled triangle, can further improve the support stability of the tail support plate 57, while the second reinforcing plate 541, which is a right-angled triangle, can further improve the connection stability between the follower plate 54 and the locking plug 511. A reinforcing plate 52 is fixedly connected to the side of the locking wheel 51. The reinforcing plate 52 is connected to the locking wheel 51 and the support bottom shaft 2 by welding. The reinforcing plate 52 can improve the connection stability between the locking wheel 51 and the support bottom shaft 2.
[0031] Example 2:
[0032] Based on Embodiment 1, in this embodiment, by installing the support base 64 and the auxiliary support ring 63, the right end of the support base shaft 2 can be assisted and limited by the extension shaft 62, so as to avoid the support base shaft 2 from shaking during use. In addition, the fixedly connected reinforcing ring 61 can improve the connection stability between the extension shaft 62 and the support base shaft 2, thereby ensuring the stability of the support base shaft 2 in use.
[0033] The auxiliary support assembly 6 includes an extension shaft 62, an auxiliary support ring 63, and a support base 64. The extension shaft 62 is connected to the middle of the right end face of the support base shaft 2. The extension shaft 62 is connected to the reinforcing ring 61 and the support base shaft 2 by welding. The auxiliary support ring 63 is installed on the right side of the annular side of the extension shaft 62. The inner diameter of the auxiliary support ring 63 is the same as the outer diameter of the extension shaft 62. The auxiliary support ring 63 can support and limit the right end of the support base shaft 2 through the extension shaft 62, thereby ensuring the rotational stability of the right end of the support base shaft 2. The reinforcing ring 61 is fixedly connected to the connection between the extension shaft 62 and the support base shaft 2. The reinforcing ring 61 can improve the connection stability between the extension shaft 62 and the support base shaft 2. The support base 64 is fixedly connected to the bottom of the auxiliary support ring 63 by welding. The bottom of the support base 64 is installed and fixed in the concrete foundation pit by external high-strength expansion bolts. The support base 64 can support and fix the auxiliary support ring 63.
[0034] Working principle: After the steel gate 1 swings forward to a vertical position, the operator only needs to control the extension of the hydraulic cylinder 58 to move the follower plate 54 and lock the locking plug 511 forward, which then engages the corresponding locking groove 512. This locks the supporting shaft 2 via the locking wheel 51, preventing the steel gate 1 from swaying and collapsing in its vertical position. When it is necessary to control the steel gate 1 to swing backward to open, the operator first controls the hydraulic cylinder 58 to move the locking plug 511 to the right via the follower plate 54, separating the locking plug 511 from the locking groove 512. At this point, the external hydraulic hoist can be controlled to swing the steel gate 1 backward via the crank arm 4 and the supporting shaft 2 to open the gate, allowing the water in the river to flow backward. Then, the hydraulic cylinder 58 is controlled again to move the locking plug 511 forward via the follower plate 54, locking it again in the corresponding locking groove 512. This locks the supporting shaft 2 again via the locking wheel 51. The locking mechanism prevents the steel gate 1 from swaying and collapsing when it is lying flat. During use, the load on the locking plug 511 is directly transferred to the concrete base 53 via the support base plate 56, preventing the locking plug 511 from breaking due to excessive load. The limiting guide rail 55 also guides the follower plate 54 via the limiting guide groove 513. The second reinforcing plate 541 also improves the connection stability between the locking plug 511 and the follower plate 54, ensuring the stability of the locking plug 511. During use, the support base 64 supports and fixes the auxiliary support ring 63, allowing the auxiliary support ring 63 to provide auxiliary support and limit the right end of the support base 2 via the extension shaft 62, preventing swaying during use. The fixed reinforcing ring 61 further improves the connection stability between the extension shaft 62 and the support base 2.
[0035] It should be noted that the circuits, electronic components, and driving devices involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve improvements to the software and methods. At the same time, the power connection methods of each electrical device are existing mature technologies, which are well known to those skilled in the art, and will not be elaborated upon here.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A steel dam gate anti-collapse safety device, comprising a steel gate plate (1), a supporting bottom shaft (2), a shaft base (3), and a crank arm (4), characterized in that: The steel gate (1) is provided with a support shaft (2) at the bottom. Shaft bases (3) are installed on both the left and right sides of the annular side of the support shaft (2). A crank arm (4) is provided on the right side of the annular side of the support shaft (2). A locking component (5) is provided on the right side of the crank arm (4). The locking component (5) is used to assist in locking the support base (64). An auxiliary support component (6) is provided at the right end of the support shaft (2). The auxiliary support component (6) is used to provide auxiliary support to the right end of the support shaft (2). The locking assembly (5) includes a locking wheel (51), a concrete base (53), a follower plate (54), a support base plate (56), a tail support plate (57), a hydraulic cylinder (58), a displacement sensor (59), and a locking plug (511). The locking wheel (51) is provided on the right side of the annular side of the support shaft (2). Multiple locking grooves (512) are equally spaced on the upper side of the annular side of the locking wheel (51). A concrete base (53) is poured behind the support shaft (2). (53) A support base plate (56) is installed on the upper end surface. A tail support plate (57) is fixedly connected to the rear side of the upper end surface of the support base plate (56). A hydraulic cylinder (58) is installed on the front end surface of the tail support plate (57). A follower plate (54) is connected to the front end of the hydraulic cylinder (58). A locking plug (511) is provided on the front end surface of the follower plate (54), and the locking plug (511) matches the locking groove (512). A displacement sensor (59) is installed in the middle position of the upper end surface of the follower plate (54).
2. The anti-collapse safety device for steel dam gates according to claim 1, characterized in that: The upper end face of the support base plate (56) is fixedly connected to a limiting guide rail (55), and the limiting guide rail (55) is T-shaped. The left and right sides of the lower end face of the follower plate (54) are symmetrically provided with limiting guide grooves (513), and the limiting guide grooves (513) match the limiting guide rail (55).
3. The anti-collapse safety device for steel dam gates according to claim 1, characterized in that: The auxiliary support assembly (6) includes an extension shaft (62), an auxiliary support ring (63), and a support base (64). The extension shaft (62) is connected to the middle position of the right end face of the support base shaft (2). A reinforcing ring (61) is fixedly connected to the connection between the extension shaft (62) and the support base shaft (2). An auxiliary support ring (63) is installed on the right side of the annular side of the extension shaft (62). The support base (64) is fixedly connected to the bottom of the auxiliary support ring (63).
4. The anti-collapse safety device for steel dam gates according to claim 3, characterized in that: The inner diameter of the auxiliary support ring (63) is the same as the outer diameter of the extension shaft (62).
5. The anti-collapse safety device for steel dam gates according to claim 1, characterized in that: The tail support plate (57) has a first reinforcing plate (571) symmetrically fixedly connected to its front and rear ends, and the follower plate (54) has a second reinforcing plate (541) symmetrically fixedly connected to its left and right sides on its front end face. The first reinforcing plate (571) and the second reinforcing plate (541) are both right-angled triangles.
6. The anti-collapse safety device for steel dam gates according to claim 1, characterized in that: The lower surfaces of the follower plate (54) and the locking plug (511) are both in contact with the upper surface of the support base plate (56).
7. The anti-collapse safety device for steel dam gates according to claim 1, characterized in that: The locking wheel (51) is fixedly connected to a reinforcing plate (52) on its side, and the multiple locking grooves (512) are of the same specification.