Hydraulic drive downward opening type weir gate

Abstract

A hydraulic drive downward opening type weir gate relates to the technical field of weir gates and comprises a weir frame, a weir plate is arranged in the weir frame in a sliding fit mode, a hydraulic cylinder is installed on the weir frame, a telescopic rod of the hydraulic cylinder is connected to the weir plate, the weir frame comprises a top plate and a bottom plate, and the top plate and the bottom plate are connected together through a left guide frame and a right guide frame. And a weir plate is mounted between the left guide frame and the right guide frame. According to the utility model, the weir plate can flexibly slide up and down in the weir frame by virtue of the hydraulic cylinder, the telescopic distance of the telescopic rod of the hydraulic cylinder is greatly prolonged by virtue of the design of the vertical supporting pipe and the mounting cavity, the lifting height of the weir gate plate is ensured, and the applicability and the flexibility of the weir gate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weir gates, and particularly to a hydraulically driven downward-opening weir gate. Background Art

[0002] In the field of water conservancy projects, the downward-opening weir gate, as an important water flow control device, is usually made of metal or concrete materials. Its structural design is similar to that of a gate and is often installed at the outlet of a cut-off well or a water flow channel. A core function of such a weir gate is to regulate the water flow rate. By precisely controlling the opening degree of the weir gate, the water flow rate in the drainage system can be flexibly adjusted to meet various actual needs.

[0003] A downward-opening weir gate disclosed in Chinese Patent CN 115288280 A has its driving device connected to the weir plate. This design has an inherent limitation, that is, the lifting height of the weir plate is restricted and cannot meet the application requirements in long-distance water flow control scenarios. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems raised in the above background art, and then a hydraulically driven downward-opening weir gate is proposed.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A hydraulically driven downward-opening weir gate includes a weir frame. A weir plate is slidably fitted in the weir frame. A hydraulic cylinder is installed on the weir frame, and the telescopic rod of the hydraulic cylinder is connected to the weir plate. The weir frame includes a top plate and a bottom plate, and the top plate and the bottom plate are connected together by a left guide frame and a right guide frame. A weir plate is installed between the left guide frame and the right guide frame. The weir plate includes a central plate, and on each side of the central plate, there is a vertical support pipe. The bottom of the vertical support pipe is blocked, and an installation cavity is formed inside the vertical support pipe. A connecting block is provided at the bottom of the installation cavity, and the telescopic rod of the hydraulic cylinder is inserted into the installation cavity and fixedly connected to the connecting block.

[0007] Further, a lower connecting rod is provided at the bottom of the top plate. An articulated seat is rotatably connected to the lower connecting rod, and a hydraulic cylinder is installed on the articulated seat.

[0008] Further, a plurality of support rib plates are provided on the central plate, and the two sides of the support rib plates are fixedly connected to the vertical support pipes.

[0009] Further, a connecting frame is fixedly connected to the left guide frame and / or the right guide frame.

[0010] Further, the connecting frame includes a first connecting plate, the first connecting plate is connected to a second connecting plate, and a plurality of positioning and installation holes are provided on the second connecting plate.

[0011] Further, the left guiding frame includes a U-shaped plate, on which two guiding groove plates are formed. There is a guiding groove opening between the two guiding groove plates, and the guiding groove opening is matched with the weir plate. The left guiding frame is filled with a rubber sealing strip.

[0012] Further, a slot matched with the end of the weir plate is formed on the rubber sealing strip.

[0013] Further, a sealing plate is provided at the end of the weir plate, and the sealing plate extrudes the rubber sealing strip to cause elastic deformation.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: With the aid of the hydraulic cylinder, the weir plate can slide up and down in the weir frame flexibly, realizing the rapid opening and closing of the weir gate; the design of the vertical support pipe and the installation cavity greatly extends the telescopic distance of the telescopic rod of the hydraulic cylinder, ensuring the lifting height of the weir gate plate, and improving the applicability and flexibility of the weir gate; the design of the support rib plates and the connecting frame enhances the overall strength and stability of the weir gate, enabling the weir gate to be firmly installed on the concrete base, and improving the safety and durability; the design of the rubber sealing strip and the sealing plate further enhances the sealing performance of the weir gate, effectively preventing water leakage, and ensuring the tightness and reliability of the weir gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a cross-sectional view of the left guiding frame;

[0017] Wherein: 1 weir frame, 11 left guiding frame, 111 guiding groove plate, 112 guiding groove opening, 113 rubber sealing strip, 114 slot, 12 right guiding frame, 13 top plate, 14 bottom plate, 2 vertical support pipe, 21 installation cavity, 22 connecting block, 3 hydraulic cylinder, 31 lower connecting rod, 32 hinge seat, 4 connecting frame, 41 first connecting plate, 42 second connecting plate, 43 positioning installation hole, 5 weir plate, 51 support rib plate, 52 sealing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. The present utility model will be further described in conjunction with the drawings and embodiments:

[0019] Such as Figure 1 - Figure 2As shown in the figure, a hydraulic down-opening weir gate includes a weir frame 1. A weir plate 5 is slidably fitted inside the weir frame. A hydraulic cylinder 3 is installed on the weir frame, and the telescopic rod of the hydraulic cylinder is connected to the weir plate. Such a design enables the hydraulic cylinder to drive the weir plate to slide up and down inside the weir frame, realizing the opening and closing of the weir gate. The weir frame includes a top plate 13 and a bottom plate 14. The top plate and the bottom plate are connected together by a left guide frame 11 and a right guide frame 12. The weir plate is installed between the left guide frame and the right guide frame. Such a structure makes the weir frame more stable, and at the same time, the guide frame can also provide a guiding function for the weir plate.

[0020] Further, a lower connecting rod 31 is provided at the bottom of the top plate. A hinge seat 32 is rotatably connected to the lower connecting rod, and a hydraulic cylinder is installed on the hinge seat.

[0021] In at least one embodiment, the weir plate includes a central plate. A vertical support pipe 2 is provided on each side of the central plate. The bottom of the vertical support pipe is blocked, and an installation cavity 21 is formed inside the vertical support pipe. Such a design increases the strength and stability of the weir plate. At the same time, the installation cavity can also provide an installation space for the telescopic rod of the hydraulic cylinder. A connecting block 22 is provided at the bottom of the installation cavity. The telescopic rod of the hydraulic cylinder is inserted into the installation cavity and fixedly connected to the connecting block. With the design of the vertical support pipe and the installation cavity, the telescopic distance of the telescopic rod can be greatly extended, thereby ensuring the lifting height of the weir plate and improving the applicability and flexibility of the weir gate.

[0022] Further, a plurality of support rib plates 51 are provided on the central plate. The two sides of the support rib plates are fixedly connected to the vertical support pipes. Such a design further enhances the strength and stability of the weir plate, making the weir plate not easily deformed or damaged when bearing water pressure.

[0023] In at least one embodiment, a connecting frame 4 is fixedly connected to the left guide frame 11 and / or the right guide frame 12, and the connecting frame can be used to connect to a concrete base.

[0024] The solution is refined. The connecting frame includes a first connecting plate 41. The first connecting plate is connected to a second connecting plate 42, and a plurality of positioning and installation holes 43 are provided on the second connecting plate.

[0025] In at least one embodiment, the left guide frame includes a U-shaped plate. Two guide groove plates 111 are formed on the U-shaped plate. A guide groove opening 112 is provided between the two guide groove plates. The guide groove opening is matched with the weir plate, and a rubber sealing strip 113 is filled inside the left guide frame.

[0026] Further, a slot 114 matched with the end of the weir plate is formed on the rubber sealing strip. Such a design enables the rubber sealing strip to better cooperate with the end of the weir plate, forming a more tight sealing effect.

[0027] Furthermore, a sealing plate 52 is provided at the end of the weir plate, and the sealing plate extrudes the rubber sealing strip to cause elastic deformation. Such a design enables the sealing plate to fit more closely on the rubber sealing strip, forming a more reliable sealing effect.

[0028] Working method: Confirm that all components of the weir gate are intact. Prepare for the foundation construction to ensure that the concrete base is flat and meets the installation requirements. Assemble the weir frame together. Install the connecting frame on the left guide frame and / or the right guide frame and fix it to the concrete base. Insert the weir plate between the guide frames and ensure that it can slide freely within the guide frames. Install the hydraulic cylinder on the weir frame and connect the telescopic rod of the hydraulic cylinder to the connecting block of the weir plate. Fill the rubber sealing strip in the left guide frame and the right guide frame and ensure that it matches the end of the weir plate. Check whether the hydraulic system (including the hydraulic station, hydraulic cylinder, hydraulic hose and joints, etc.) is correctly connected and well sealed. Refuel the hydraulic station to ensure that there is enough hydraulic oil. Connect the power supply and debug the hydraulic system to ensure that the hydraulic cylinder can extend and retract normally. Conduct the opening and closing test of the weir gate to check whether its operation is stable and the sealing is good. Control the hydraulic station as needed to make the hydraulic cylinder extend or retract, thereby driving the weir plate to open or close. Regularly check the sealing performance of the hydraulic system and the hydraulic oil volume to ensure the normal operation of the hydraulic system. Regularly clean the sundries and dirt on the weir gate to keep it clean. Regularly check the wear condition of the rubber sealing strip and replace it in time if necessary. Regularly lubricate and maintain the hydraulic cylinder and the connecting components to ensure their service life.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of protection required by the present invention. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulically operated downward opening weir gate, characterized in that: It comprises a weir frame, in which a weir plate is slidably fitted, a hydraulic cylinder is installed on the weir frame, a telescopic rod of the hydraulic cylinder is connected to the weir plate, the weir frame comprises a top plate and a bottom plate, the top plate and the bottom plate are connected together through a left guide frame and a right guide frame, a weir plate is installed between the left guide frame and the right guide frame, the weir plate comprises a center plate, a vertical support tube is respectively provided on both sides of the center plate, the bottom of the vertical support tube is blocked, an installation cavity is formed in the vertical support tube, a connecting block is provided at the bottom of the installation cavity, the telescopic rod of the hydraulic cylinder is inserted into the installation cavity and fixedly connected to the connecting block.

2. The hydraulic down-opening weir gate according to claim 1, characterized in that: A lower connecting rod is provided at the bottom of the top plate, a hinge seat is rotatably connected to the lower connecting rod, and a hydraulic cylinder is installed on the hinge seat.

3. The hydraulic down-opening weir gate according to claim 1 or 2, characterized in that: The central plate is provided with a plurality of supporting ribs, and two sides of the supporting ribs are fixedly connected to the vertical supporting tubes.

4. The hydraulic down-opening weir gate according to claim 1, characterized in that: A connecting frame is fixedly connected to the left guide frame and / or the right guide frame.

5. The hydraulic down-opening weir gate according to claim 4, characterized in that: The connecting frame includes a first connecting plate, the first connecting plate is connected to a second connecting plate, and the second connecting plate is provided with a plurality of positioning and mounting holes.

6. The hydraulic down-opening weir gate according to claim 3, characterized in that: The left guide frame includes a U-shaped plate, two guide groove plates are formed on the U-shaped plate, a guide groove is provided between the two guide groove plates, the guide groove cooperates with the weir plate, and a rubber sealing strip is filled in the left guide frame.

7. The hydraulically operated downward opening weir gate according to claim 6, characterized in that: The rubber sealing strip is formed with a slot matched with the end of the weir plate.

8. The hydraulically operated downward opening weir gate according to claim 7, characterized in that: A sealing plate is provided at the end of the weir plate, and the sealing plate squeezes the rubber sealing strip to cause elastic deformation.

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