Downward opening type weir gate with stable guide structure

Abstract

The utility model discloses a downward opening type checkgate with a stable guide structure, which comprises a checkgate frame, the lower end of the inside of the checkgate frame is provided with an accommodating cavity, the inside of the accommodating cavity is provided with an intercepting mechanism for intercepting water flow, and the upper end of the inside of the checkgate frame is provided with an adjusting mechanism for adjusting the checkgate; the closure mechanism comprises a movable door, the movable door is arranged in the storage cavity, and two guide rods are symmetrically and telescopically connected to the upper end of the movable door. According to the utility model, through the roller arranged on the sealing block, when the sealing block moves vertically under the cooperation of the limiting groove, the roller can be driven to roll in the limiting groove, the guiding effect is further started, and the stability is further ensured.

Description

Technical Field

[0001] This utility model relates to a bottom-opening weir gate, specifically a bottom-opening weir gate with a stable guiding structure, belonging to the field of weir gate technology. Background Technology

[0002] Bottom-opening weir gates are typically made of metal or concrete and have a gate-like structure. Installed at the outlet of a cutoff well, they can move vertically up and down. Their unique feature is the bottom-opening design, where the gate opens downwards along a bottom guide rail. This design effectively avoids the eddies and scouring problems that can occur during the opening process of traditional top-opening weir gates, reducing damage to river channels and hydraulic structures.

[0003] In existing technologies, such as the bottom-opening weir gate disclosed in CN216194505U, a main frame is included. Side plates are welded to the inner side of the main frame, and annular plates are welded to the outer side of the side plates. A baffle is slidably connected to the inner side of the side plates. A sealing plate is fixedly installed on the front of the main frame. A drive mechanism is fixedly installed on the inner side of the main frame, and an annular wheel is fixedly installed on the outer side of the drive mechanism. A traction chain is fixedly installed on the outer side of the annular wheel. By incorporating the baffle, annular plate, and sealing plate, and with the baffle and side plates slidably connected, the tightness of the connection is improved, ensuring the long-term sealing effect of the baffle. Furthermore, the bottom-opening design of the baffle effectively controls the water level difference on both sides of the gate.

[0004] Although the above-mentioned technical solution improves the tightness of the connection by setting baffles, annular plates and sealing plates, and the baffles and side plates are embedded in a sliding connection, the guiding effect is poor when raising and lowering the weir gate, which makes it easy for the weir gate to deviate when it moves, so that the weir gate cannot achieve effective sealing after it is closed. In view of this, a bottom-opening weir gate with a stable guiding structure is provided to overcome the above defects. Utility Model Content

[0005] This invention addresses the problem that the lifting and lowering mechanism of a weir gate has poor guiding effect, causing the weir gate to easily deviate during movement and making it impossible to achieve an effective seal after closing. It provides a bottom-opening weir gate with a stable guiding structure.

[0006] The present invention achieves the above objectives through the following technical solution: a bottom-opening weir gate with a stable guiding structure, including a weir gate frame, a receiving cavity at the lower end of the weir gate frame, a flow interception mechanism for intercepting water flow inside the receiving cavity, and an adjustment mechanism for adjusting the weir gate at the upper end of the weir gate frame.

[0007] The interception mechanism includes a movable gate, which is installed inside the receiving cavity. Two guide rods are symmetrically telescopically connected to the upper end of the movable gate. Sealing blocks are fixed at both ends of the movable gate, and sealing grooves opened on the inner wall of the weir gate frame are connected to the outer surface of the two sealing blocks.

[0008] Preferably, rollers are installed on the outer walls of both sealing blocks, and a limiting groove opened in the weir gate frame is slidably connected to one side of the rollers.

[0009] Preferably, the adjustment mechanism includes a mounting cavity, which is located at the upper end inside the weir gate frame, and a drive motor is fixed inside the mounting cavity by bolts.

[0010] Preferably, the power output shaft of the drive motor is fixed with a lead screw, and the lower end of the lead screw is threadedly connected to a threaded pipe that is fixedly connected to the weir gate frame.

[0011] Preferably, fixing plates are fixed to the lower ends of both sides of the weir gate frame.

[0012] Preferably, fixing bolts are installed inside the fixing plate.

[0013] Preferably, a protective plate is fixed to the upper surface of the weir gate frame with screws.

[0014] The beneficial effects of this utility model are:

[0015] 1) With the help of the limiting groove, the rollers set on the sealing block will drive the rollers to roll inside the limiting groove when the sealing block moves vertically, thereby further activating the guiding function and ensuring stability.

[0016] 2) The drive motor of this utility model drives the lead screw to rotate, which in turn drives the threaded tube connected by the thread to move vertically. Since there is a guide rod through the movable door, it can play a guiding role, so that when the threaded tube moves, it drives the movable door to move vertically in sync, thereby opening or closing the movable door. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the weir gate frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the weir gate frame of this utility model;

[0020] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle;

[0021] In the diagram: 1. Weir gate frame; 2. Receiving cavity; 3. Movable door; 31. Guide rod; 32. Sealing block; 33. Sealing groove; 34. Roller; 35. Limiting groove; 4. Mounting cavity; 41. Drive motor; 42. Lead screw; 43. Threaded pipe; 5. Fixing plate; 6. Fixing bolt; 7. Protective plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0023] Example 1, as Figures 1 to 4 As shown, a bottom-opening weir gate with a stable guiding structure includes a weir gate frame 1, a receiving cavity 2 is provided at the lower end of the weir gate frame 1, a flow interception mechanism for intercepting water flow is provided inside the receiving cavity 2, and an adjustment mechanism for adjusting the weir gate is provided at the upper end of the weir gate frame 1.

[0024] The interception mechanism includes a movable gate 3, which is installed inside the receiving cavity 2. Two guide rods 31 are symmetrically telescopically connected to the upper end of the movable gate 3. Sealing blocks 32 are fixed to both ends of the movable gate 3. Sealing grooves 33, formed on the inner wall of the weir frame 1, are connected to the outer surfaces of the two sealing blocks 32. Rollers 34 are installed on the outer walls of the two sealing blocks 32. A limiting groove 35, formed inside the weir frame 1, is slidably connected to one side of each roller 34. The guide rods 31 act as guides. When the movable gate 3 moves downwards, it retracts into the receiving cavity 2, thus opening the weir. The sealing blocks 32 on the movable gate 3, in conjunction with the sealing grooves 33, provide a certain degree of sealing, reducing water leakage. Furthermore, the rollers 34 on the sealing blocks 32, in conjunction with the limiting grooves 35, cause the rollers 34 to roll within the limiting grooves 35 when the sealing blocks 32 move vertically, further activating the guiding function and ensuring stability.

[0025] Example 2, in addition to all the technical features of Example 1, includes the following: the adjustment mechanism includes a mounting cavity 4, which is located at the upper end of the weir frame 1. A drive motor 41 is fixed inside the mounting cavity 4 by bolts. A lead screw 42 is fixed to the power output shaft of the drive motor 41. The lower end of the lead screw 42 is threadedly connected to a threaded pipe 43 fixedly connected to the weir frame 1. Fixing plates 5 are fixed to the lower ends of both sides of the weir frame 1. Fixing bolts 6 are installed inside the fixing plates 5. The upper surface of the weir frame 1 is fixed with screws. The protective plate 7 is fixed. The drive motor 41 installed in the mounting cavity 4 can drive the lead screw 42 to rotate, which in turn drives the threaded tube 43 connected by the thread to move vertically. Since the guide rod 31 passes through the movable door 3, it can play a guiding role. When the threaded tube 43 moves, it drives the movable door 3 to move vertically at the same time, thereby opening or closing the movable door 3. The guide rod 31 can also play a guiding role. When the movable door 3 moves downward, it will retract into the storage cavity 2, thereby opening the weir gate.

[0026] Before using the bottom-opening weir gate, first place the weir gate frame 1 in a suitable position. After placement, tighten the fixing bolts 6 using the fixing plate 5 on the weir gate frame 1 to fix the weir gate frame 1 and reduce the possibility of displacement. During use, the drive motor 41 installed in the mounting cavity 4 drives the lead screw 42 to rotate, which in turn drives the threaded pipe 43 connected by threads to move vertically. Since the guide rod 31 passes through the movable gate 3, it can play a guiding role, so that when the threaded pipe 43 moves, it synchronously drives the movable gate 3 to move vertically, thereby opening or closing the movable gate 3. Furthermore, the guide rod 31 can serve as a guide. When the movable door 3 moves downward, it will retract into the storage cavity 2, thereby opening the weir gate. The sealing block 32 provided on the movable door 3, in cooperation with the sealing groove 33, can play a certain sealing role, thereby reducing the possibility of water leakage. In addition, the roller 34 provided on the sealing block 32, in cooperation with the limiting groove 35, will drive the roller 34 to roll inside the limiting groove 35 when the sealing block 32 moves vertically, further activating the guiding role and ensuring stability. By removing the protective plate 7 on the weir gate frame 1, the parts inside the installation cavity 4 can be maintained.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bottom-opening weir gate with a stable guiding structure, comprising a weir gate frame (1), characterized in that: The lower end of the weir frame (1) is provided with a receiving cavity (2), and the receiving cavity (2) is provided with a flow interception mechanism for intercepting the water flow. The upper end of the weir frame (1) is provided with an adjustment mechanism for adjusting the weir. The interception mechanism includes a movable door (3), which is placed inside the receiving cavity (2). The upper end of the movable door (3) is symmetrically telescopically connected with two guide rods (31). Both ends of the movable door (3) are fixed with sealing blocks (32). The outer surfaces of the two sealing blocks (32) are connected with sealing grooves (33) opened on the inner wall of the weir frame (1).

2. The bottom-opening weir gate according to claim 1, characterized in that: Rollers (34) are installed on the outer walls of both sealing blocks (32), and one side of each roller (34) is slidably connected to a limiting groove (35) opened in the weir gate frame (1).

3. The bottom-opening weir gate according to claim 1, characterized in that: The adjustment mechanism includes a mounting cavity (4), which is located at the upper end of the weir frame (1). A drive motor (41) is fixed inside the mounting cavity (4) by bolts.

4. The bottom-opening weir gate according to claim 3, characterized in that: The power output shaft of the drive motor (41) is fixed with a lead screw (42), and the lower end of the lead screw (42) is threadedly connected to a threaded pipe (43) that is fixedly connected to the weir frame (1).

5. The bottom-opening weir gate according to claim 1, characterized in that: The lower ends of both sides of the weir gate frame (1) are fixed with fixing plates (5).

6. The bottom-opening weir gate according to claim 5, characterized in that: The fixing plate (5) is equipped with fixing bolts (6).

7. The bottom-opening weir gate according to claim 1 or 6, characterized in that: The upper surface of the weir gate frame (1) is fixed with a protective plate (7) by screws.

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