Self-locking structure for rotating weir

Abstract

The utility model relates to the technical field of rotating weirs, in particular to a self-locking structure for a rotating weir, which comprises a channel body and a weir gate, a hydraulic cylinder is arranged on the inner side of the channel body, a lock bolt is connected to the tail end of a cylinder rod of the hydraulic cylinder, a rotating shaft is rotatably connected to the lock bolt, and a fixing frame is arranged on the weir gate. A retaining ring is fixedly mounted on the weir gate, a stop lever is slidably arranged at the position, corresponding to the retaining ring, of the canal body, a sliding rail is fixedly mounted at the position, corresponding to the stop lever, of the canal body, and a spring is arranged in the sliding rail. In the process that the hydraulic cylinder drives the check gate to be closed through the fixing frame, the stop lever makes contact with the retaining ring, the stop lever is touched to slide into the sliding rail, the top end of the stop lever resets under the action of the spring when entering the retaining ring, the side face of the stop lever and the retaining ring are clamped, and the automatic locking function of the check gate is achieved by adding the self-locking mechanism. The diameter of the hydraulic cylinder does not need to be increased, the construction cost of the weir gate is reduced, meanwhile, the area occupied by installation of a mechanical part can be reduced, and the weir gate is more convenient to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary weirs, and particularly relates to a self-locking structure for a rotary weir. Background Art

[0002] A rotary weir, also known as a rotary weir gate, is generally a control facility for closing and opening a water discharge channel. It is an important part of a hydraulic structure and can be used to intercept water flow, control water level, regulate flow rate, discharge sediment and floating objects, etc. It generally consists of a movable part, an embedded part, and a hoisting machinery part. The hydraulic control rotary weir gate is driven by a hydraulic method, and the weir plate rotates around the rotation axis by less than or equal to 90 degrees to cut off and connect the water flow, regulate the water level and flow rate, and prevent backflow.

[0003] Compared with ordinary gates and weir gates, the opening and closing of a rotary weir are not restricted by tracks and are completely controlled by a hydraulic cylinder. In the case of a large amount of water, such as during a short-term heavy rainfall like a rainstorm, the upper end of the weir gate is prone to tilting, resulting in water leakage. In order to increase the compressive capacity of the weir gate, generally, the method of increasing the cylinder diameter of the hydraulic cylinder is adopted to increase its pulling force. However, this will increase the cost and the installation space required, which is not conducive to use.

[0004] Therefore, it is urgent to improve the self-locking structure for a rotary weir to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a self-locking structure for a rotary weir. During the process of the hydraulic cylinder driving the weir gate to close through a fixed frame, the stop rod contacts the buckle ring. The stop rod is touched and slides into the inside of the slide rail. When the top end of the stop rod enters the inside of the buckle ring, it resets under the action of a spring, and the side of the stop rod is stuck with the buckle ring. By adding a self-locking mechanism, the automatic locking function of the weir gate is realized. Without increasing the cylinder diameter of the hydraulic cylinder, while reducing the cost of the weir gate structure, it can also reduce the area occupied by the installation of the mechanical part, making the use of the weir gate more convenient.

[0006] To achieve the above purpose, the main technical solutions adopted by the utility model include:

[0007] A self-locking structure for a rotary weir, including a channel body and a weir gate fixedly installed on the channel body. Two symmetrically distributed hydraulic cylinders are rotatably arranged inside the channel body. The end of the cylinder rod of the hydraulic cylinder is rotatably connected with a locking bolt. A rotating shaft is rotatably connected to the locking bolt. A fixed frame is fixedly installed at the position of the weir gate corresponding to the locking bolt. The rotating shaft is fixedly arranged inside the fixed frame. One end of the locking bolt away from the hydraulic cylinder extends to the upper end of the fixed frame.

[0008] A buckle is fixedly installed on the weir gate. The buckle is arranged on one side of the locking bolt. A blocking rod is slidably arranged at the position of the channel body corresponding to the buckle. A slide rail is fixedly installed at the position of the channel body corresponding to the blocking rod. A spring is arranged inside the slide rail. One end of the spring is fixedly connected to the blocking rod. The blocking rod is slidably arranged inside the slide rail through the spring.

[0009] Preferably, the weir gate includes a door frame and a door panel rotatably connected to the door frame through a hinge. The door frame is fixedly installed on the channel body through bolts. Both the fixing frame and the buckle are installed inside the door panel.

[0010] Preferably, the sides of the locking bolt and the blocking rod are both arranged as inclined surfaces. When the door panel is closed, the inclined surfaces of the locking bolt and the blocking rod are in contact with each other.

[0011] Preferably, an arc surface is arranged at one end of the locking bolt away from the hydraulic cylinder. During the rotation of the locking bolt, the tip of the locking bolt contacts the inner side of the door panel through the arc surface.

[0012] Preferably, the slide rail is fixedly arranged on one side of the door frame. During the rotation of the door panel, the inclined surface of the blocking rod first contacts the outer side of the buckle.

[0013] Preferably, a chute is opened at the upper end of the fixing frame. The locking bolt is rotatably arranged inside the chute through the rotating shaft.

[0014] Preferably, the rotating shaft is fixedly arranged inside the fixing frame. A pin hole is opened on the locking bolt. The locking bolt is rotatably connected to the rotating shaft and the end of the cylinder rod of the hydraulic cylinder through the pin hole.

[0015] The utility model has at least the following beneficial effects:

[0016] 1. During the process of the hydraulic cylinder of the utility model driving the weir gate to close through the fixing frame, the blocking rod contacts the buckle. The blocking rod is touched and slides into the inside of the slide rail. When the top end of the blocking rod enters the inside of the buckle, it resets under the action of the spring. The side surface of the blocking rod is stuck with the buckle. By adding a self-locking mechanism, the automatic locking function of the weir gate is realized. There is no need to increase the cylinder diameter of the hydraulic cylinder. While reducing the construction cost of the weir gate, it can also reduce the area occupied by the installation of the mechanical part, making the use of the weir gate more convenient.

[0017] 2. The sides of the locking bolt and the blocking rod of the utility model are designed to be matched with inclined surfaces, making it easier to push the blocking rod to slide when the locking bolt presses the blocking rod. When the cylinder rod of the hydraulic cylinder extends to drive the door panel to open, the cylinder rod of the hydraulic cylinder first drives the locking bolt to rotate through the rotating shaft. The locking bolt pushes the blocking rod to slide through the inclined surface, and pushes the top end of the blocking rod away from the buckle, thus realizing the automatic unlocking function of the weir gate, greatly improving the practicability of the self-locking mechanism.

[0018] 3. The tip of the bolt of the present utility model contacts the inner side of the door panel through an arc surface, which can avoid the deformation and damage of the door panel caused by the friction between the sharp corner and the door panel when the hydraulic cylinder pulls the weir gate, plays a certain protective role for the door panel, and can also prevent the bolt from being damaged, thereby extending the service life of the self-locking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0020] Figure 1 is the overall elevation view of the present utility model;

[0021] Figure 2 is the structure diagram of the weir gate of the present utility model;

[0022] Figure 3 is of the present utility model Figure 2 enlarged schematic view at position A;

[0023] Figure 4 is the working schematic diagram of the bolt of the present utility model;

[0024] Figure 5 is the working schematic diagram of the retaining rod of the present utility model.

[0025] In the figure, 1. channel body; 2. weir gate; 21. door frame; 22. door panel; 3. hydraulic cylinder; 4. bolt; 41. pin hole; 5. rotating shaft; 6. fixing frame; 61. sliding groove; 7. buckle; 8. retaining rod; 9. sliding rail; 10. spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will describe in detail the embodiments of the present application in conjunction with the drawings and embodiments, so as to fully understand how the present application uses technical means to solve technical problems and achieve the realization process of technical effects and implement accordingly.

[0027] As Figures 1-5 shown, a self-locking structure for a rotary weir provided in this embodiment includes a channel body 1 and a weir gate 2 fixedly installed on the channel body 1. Two symmetrically distributed hydraulic cylinders 3 are rotatably arranged inside the channel body 1. The hydraulic cylinders 3 are used to control the opening and closing of the weir gate 2. The end of the cylinder rod of the hydraulic cylinder 3 is rotatably connected to a bolt 4. A rotating shaft 5 is rotatably connected to the bolt 4. A fixing frame 6 is fixedly installed at the position of the weir gate 2 corresponding to the bolt 4. The rotating shaft 5 is fixedly arranged inside the fixing frame 6. One end of the bolt 4 away from the hydraulic cylinder 3 extends to the upper end of the fixing frame 6. While the hydraulic cylinder 3 controls the opening and closing of the weir gate 2, it drives the bolt 4 to rotate through the rotating shaft 5, thereby controlling the opening and release of the self-locking function of the weir gate 2;

[0028] A buckle ring 7 is fixedly installed on the weir gate 2. The buckle ring 7 is arranged on one side of the locking bolt 4. A retaining rod 8 is slidably arranged at the position of the channel body 1 corresponding to the buckle ring 7. A slide rail 9 is fixedly installed at the position of the channel body 1 corresponding to the retaining rod 8. A spring 10 is arranged inside the slide rail 9. One end of the spring 10 is fixedly connected to the retaining rod 8. The retaining rod 8 is slidably arranged inside the slide rail 9 through the spring 10. During the process of the hydraulic cylinder 3 driving the weir gate 2 to close through the fixed frame 6, the retaining rod 8 contacts the buckle ring 7, and the retaining rod 8 is touched and slides into the inside of the slide rail 9. When the top end of the retaining rod 8 enters the inside of the buckle ring 7, it resets under the action of the spring 10, and the side surface of the retaining rod 8 is stuck with the buckle ring 7. By adding a self-locking mechanism, the automatic locking function of the weir gate 2 is realized. Without increasing the cylinder diameter of the hydraulic cylinder 3, while reducing the construction cost of the weir gate 2, the area occupied by the installation of the mechanical part can also be reduced, making the use of the weir gate more convenient.

[0029] Further, as Figures 1-5 shown, the weir gate 2 includes a door frame 21 and a door panel 22 rotatably connected to the door frame 21 through a hinge. The door frame 21 is fixedly installed on the channel body 1 through bolts. The fixed frame 6 and the buckle ring 7 are both installed on the inner side of the door panel 22, which is convenient for the hydraulic cylinder 3 to drive the door panel 22 to rotate on the door frame 21 through the fixed frame 6, realizing the opening and closing functions of the weir gate 2. When the door panel 22 is closed, the buckle ring 7 can cooperate with the sealing structure on the door frame 21 to further enhance the sealing performance of the weir gate 2 and prevent water leakage.

[0030] Furthermore, as Figures 1-5 shown, the side surfaces of the locking bolt 4 and the retaining rod 8 are both arranged as inclined surfaces. When the door panel 22 is closed, the inclined surfaces of the locking bolt 4 and the retaining rod 8 are in contact with each other. The side surfaces of the locking bolt 4 and the retaining rod 8 are designed to be in inclined surface cooperation, so that when the locking bolt 4 presses the retaining rod 8, it is easier to push the retaining rod 8 to slide. The rotating shaft 5 is fixedly arranged inside the fixed frame 6. A pin hole 41 is opened on the locking bolt 4. The locking bolt 4 is rotatably connected to the rotating shaft 5 and the end of the cylinder rod of the hydraulic cylinder 3 through the pin hole 41. When the cylinder rod of the hydraulic cylinder 3 extends to drive the door panel 22 to open, the cylinder rod of the hydraulic cylinder 3 first drives the locking bolt 4 to rotate through the rotating shaft 5. The locking bolt 4 pushes the retaining rod 8 to slide through the inclined surface, and pushes the top end of the retaining rod 8 away from the buckle ring 7, thus realizing the automatic unlocking function of the weir gate 2 and greatly improving the practicability of the self-locking mechanism.

[0031] Still further, as Figures 1-5 shown, an arc surface is arranged at one end of the locking bolt 4 away from the hydraulic cylinder 3. During the rotation of the locking bolt 4, the tip of the locking bolt 4 contacts the inner side of the door panel 22 through the arc surface, which can avoid the deformation and damage of the door panel 22 caused by the friction between the sharp corner and the door panel 22 when the hydraulic cylinder 3 pulls the weir gate 2, plays a certain protective role for the door panel 22, and can also prevent the locking bolt 4 from being damaged, thereby extending the service life of the self-locking mechanism.

[0032] In addition, as Figures 1-5As shown, the sliding rail 9 is fixedly arranged on one side of the door frame 21. During the rotation of the door panel 22, the inclined surface of the retaining rod 8 first contacts the outer side of the buckle 7. A sliding groove 61 is formed at the upper end of the fixing frame 6. The locking bolt 4 is rotatably arranged inside the sliding groove 61 through a rotating shaft 5. When the cylinder rod of the hydraulic cylinder 3 contracts to drive the door panel 22 to close, the cylinder rod of the hydraulic cylinder 3 first drives the locking bolt 4 to rotate in the sliding groove 61 through the rotating shaft 5, preventing the engagement of the retaining rod 8 and the buckle 7 from being blocked, thereby realizing the automatic locking function of the flap gate 2. The fixing frame 6 can also make the stress area larger at this place, preventing damage caused by stress concentration.

[0033] As Figures 1-5 shown, the principle of the self-locking structure for the rotary weir provided in this embodiment is as follows:

[0034] During the process of the hydraulic cylinder 3 driving the flap gate 2 to close through the fixing frame 6, the retaining rod 8 contacts the buckle 7, and the retaining rod 8 is triggered to slide into the inside of the sliding rail 9. At this time, the locking bolt 4 rotates in the sliding groove 61, preventing the engagement of the retaining rod 8 and the buckle 7 from being blocked. When the top end of the retaining rod 8 enters the inside of the buckle 7, it is reset under the action of the spring 10, and the side surface of the retaining rod 8 is locked with the buckle 7, thereby enabling the flap gate 2 to have the automatic locking function. When the cylinder rod of the hydraulic cylinder 3 extends to drive the door panel 22 to open, the cylinder rod of the hydraulic cylinder 3 first drives the locking bolt 4 to rotate through the rotating shaft 5, and the locking bolt 4 pushes the retaining rod 8 to slide through the inclined surface, pushing the top end of the retaining rod 8 away from the buckle 7 to unlock the flap gate.

[0035] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but use the difference in functions of components as the criterion for distinction. As used throughout the specification and claims, the term "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve technical problems within a certain error range and basically achieve the technical effect.

[0036] It should be noted that the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or system including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such a commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or system including the element.

[0037] The foregoing description has shown and described several preferred embodiments of the present utility model. However, as previously mentioned, it should be understood that the present utility model is not limited to the forms disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications, and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in related fields. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present utility model shall fall within the protection scope of the appended claims of the present utility model.

Claims

1. A self-locking structure for a rotary weir, comprising a channel body (1) and a weir gate (2) fixedly mounted on the channel body (1), characterized in that: Two symmetrically distributed hydraulic cylinders (3) are rotatably arranged inside the channel body (1); a locking bolt (4) is rotatably connected to the end of the cylinder rod of the hydraulic cylinder (3); a rotating shaft (5) is rotatably connected to the locking bolt (4); a fixing frame (6) is fixedly installed on the weir gate (2) at a position corresponding to the locking bolt (4); the rotating shaft (5) is fixedly arranged inside the fixing frame (6); and an end of the locking bolt (4) away from the hydraulic cylinder (3) extends to the upper end of the fixing frame (6); A buckle ring (7) is fixedly mounted on the weir gate (2), and the buckle ring (7) is arranged on one side of the lock bolt (4). A blocking rod (8) is slidably mounted on the channel body (1) at a position corresponding to the buckle ring (7). A slide rail (9) is fixedly mounted on the channel body (1) at a position corresponding to the blocking rod (8). A spring (10) is arranged inside the slide rail (9), and one end of the spring (10) is fixedly connected to the blocking rod (8). The blocking rod (8) is slidably mounted inside the slide rail (9) via the spring (10).

2. A self-locking structure for a rotary weir according to claim 1, characterized in that: The weir gate (2) comprises a door frame (21) and a door plate (22) rotatably connected to the door frame (21) via a hinge; the door frame (21) is fixedly mounted on the channel body (1) via bolts; and the fixing frame (6) and the buckle (7) are both mounted on the inner side of the door plate (22).

3. A self-locking structure for a rotary weir according to claim 2, characterized in that: The side surfaces of the lock bolt (4) and the blocking rod (8) are both arranged as inclined surfaces, and when the door panel (22) is closed, the lock bolt (4) and the inclined surfaces of the blocking rod (8) fit in contact with each other.

4. A self-locking structure for a rotary weir according to claim 2, characterized in that: An end of the lock bolt (4) away from the hydraulic cylinder (3) is provided with an arc surface, and during the rotation of the lock bolt (4), the tip of the lock bolt (4) contacts the inner side of the door panel (22) through the arc surface.

5. A self-locking structure for a rotary weir according to claim 2, characterized in that: The slide rail (9) is fixedly arranged on one side of the door frame (21), and during the rotation of the door panel (22), the inclined surface of the blocking rod (8) first contacts the outer side of the buckle (7).

6. A self-locking structure for a rotary weir according to claim 1, characterized in that: A slide groove (61) is provided at the upper end of the fixing frame (6), and the locking bolt (4) is rotatably arranged inside the slide groove (61) via the rotating shaft (5).

7. A self-locking structure for a rotary weir according to claim 1, characterized in that: The rotating shaft (5) is fixedly arranged inside the fixing frame (6), and a pin hole (41) is provided on the locking bolt (4). The locking bolt (4) is rotatably connected to the rotating shaft (5) and the end of the cylinder rod of the hydraulic cylinder (3) through the pin hole (41).

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