Steel dam gate opening and closing device without through wall and through shaft

Abstract

The invention discloses a wall-penetrating-free shaft-penetrating steel dam gate opening and closing device which comprises a gate body, and the bottom of the gate body is rotationally connected between two gate piers. The opening and closing mechanism comprises a rail, the rail is fixed to the gate piers and is of an arc-shaped structure, mounting arms are fixed to the two sides of the gate body correspondingly and slidably connected to the rail, and a driving assembly is mounted on the rail; the ventilation damping mechanism is installed on the side face of the gate body, a flow guide plate is installed at the top of the gate body, an airflow channel is formed in the flow guide plate in the length direction, a plurality of ventilation holes are formed in the back face of the gate body, the ventilation holes communicate with the airflow channel, and the airflow channel communicates with the ventilation damping mechanism; the mounting arm is located on the front side of the gate body. The problems of difficult sealing, easy abrasion, inconvenient maintenance and the like possibly caused by wall-penetrating and shaft-penetrating are solved, the failure rate of the device is reduced, and the maintenance cost and workload are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic engineering, in particular to a steel dam gate opening and closing device without penetrating shaft through wall. BACKGROUND

[0002] As an important hydraulic structure, steel dam gate is widely used in water level control and flow regulation of rivers and channels. In the prior art, the opening and closing operation of the steel dam gate is mostly dependent on the wall-penetrating shaft or hydraulic gate hoist system. Specifically, the conventional steel dam gate opening and closing device usually provides a wall-penetrating shaft at one end or both ends of the steel dam gate, and the opening and closing of the gate are realized through a transmission mechanism. However, this design has significant defects: the wall-penetrating shaft easily causes gate vibration, and the long-term operation of the wall-penetrating shaft easily causes aging of the water stop, thereby causing water ingress and dampness in the gate hoist room, affecting the normal operation and service life of the equipment. In addition, some steel dam gates use the way of arranging hydraulic gate hoist at the river bottom, which realizes the opening and closing of the gate, but the maintenance is extremely inconvenient, increasing the operation cost and downtime.

[0003] Meanwhile, during the operation of the steel dam gate, an unstable negative pressure cavity is formed behind the gate when the gate is opened for discharge, which easily excites the vibration of the gate and threatens the safety of the gate structure. The traditional solution is to provide a water breaker on the top of the gate or an air supplement hole on the side of the gate pier, but these methods have obvious limitations: the air supplement hole on the side of the gate has a limited range of action and may affect the water stop effect on the side of the gate; the water breaker on the top of the gate is only effective when the gate is fully closed or has a small opening degree, and as the opening degree of the gate increases, the water layer thickens, the water breaker loses its effect, and it cannot supplement air and reduce vibration in time in all cases of negative pressure cavity.

[0004] Based on the above technical problems, the present application provides a steel dam gate opening and closing device without penetrating shaft through wall. SUMMARY

[0005] The purpose of the present application is to provide a steel dam gate opening and closing device without penetrating shaft through wall to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present application provides the following scheme: the present application provides a steel dam gate opening and closing device without penetrating shaft through wall, which comprises:

[0007] A gate body is rotatably connected between two gate piers at the bottom;

[0008] An opening and closing mechanism comprises a track fixed on the gate pier, the track is an arc structure, the gate body is fixed with a mounting arm on each side, the mounting arm is slidably connected to the track, and a driving assembly is installed on the track, the driving assembly is used to drive the mounting arm to move on the track;

[0009] Ventilation damping mechanism, ventilation damping mechanism is installed in the side of gate body, the top of gate body is installed with guide plate, the length direction of guide plate is provided with air flow channel, the back of gate body is provided with a plurality of air holes, the air hole is communicated with the air flow channel, the air flow channel is communicated with the ventilation damping mechanism;

[0010] Wherein, the installation arm is located at the tail end and the head end of the track when the gate body is in the full open position and the full closed position respectively, the installation arm is located at the front side of the gate body, and forms an included angle between the installation arm and the gate body.

[0011] According to the no over-wall through-shaft steel dam gate opening and closing device provided by the application, the end of the installation arm is rotationally connected with a gear, the gear is slidingly connected on the track, a mounting frame is slidingly connected on the track, the driving assembly is mounted on the mounting frame, the gear is engaged with the track, and one end of the installation arm is driven to slide with the track.

[0012] According to the no over-wall through-shaft steel dam gate opening and closing device provided by the application, the driving assembly comprises a driving motor, the driving motor is fixed on the mounting frame, and the output shaft of the driving motor is connected with the gear shaft.

[0013] According to the no over-wall through-shaft steel dam gate opening and closing device provided by the application, the cross section shape of the track is a type, the inner side of the track is provided with a gear slot, and the gear is engaged with the track through the gear slot.

[0014] According to the no over-wall through-shaft steel dam gate opening and closing device provided by the application, the mounting frame comprises an L-shaped mounting plate, the inner wall of the mounting plate is rotationally connected with a guide wheel, the guide wheel is slidingly connected on the top surface of the track, the inner wall of the side surface of the mounting plate is rotationally connected with a positioning wheel, the side surface of the track is provided with a positioning groove, the cross section shape of the positioning groove is a T-shaped structure, the positioning wheel is slidingly connected in the positioning groove, the outer side of the side surface of the mounting plate is fixedly connected with a transverse plate, the driving motor is fixed on the transverse plate, and the gear is rotationally connected on the side surface of the mounting plate.

[0015] According to the no over-wall through-shaft steel dam gate opening and closing device provided by the application, the ventilation damping mechanism comprises a gas supplement pipe I and a gas supplement pipe II, the gas supplement pipe I is fixed on the installation arm, the gas supplement pipe II is arranged between the installation arm and the gate body in an arc-shaped structure, and the gas supplement pipe II is communicated with the gas supplement pipe I and the air flow channel.

[0016] According to the no over-wall through-shaft steel dam gate opening and closing device provided by the application, the length of the installation arm is greater than times of the height of the gate body.

[0017] The over-wall non-penetration shaft steel dam gate opening and closing device provided by the application has an included angle of 45 degrees between the gate body and the mounting arm.

[0018] The application discloses the following technical effects:

[0019] The opening and closing mechanism of the application is simple in structure and stable in operation. The driving assembly drives the mounting arm to move along the track, which can accurately control the opening and closing actions of the gate, ensures the gate to be accurately positioned at the full opening position and the full closing position, and improves the reliability and safety of the gate opening and closing.

[0020] The application avoids the sealing difficulty, easy wear and tear, and inconvenient maintenance caused by the over-wall penetration shaft, reduces the failure rate of the device, and reduces the maintenance cost and workload.

[0021] The air ventilation and shock absorption mechanism can balance the pressure inside and outside the gate through gas circulation, effectively reduces the vibration of the gate caused by water flow impact, reduces the noise caused by vibration, prolongs the service life of the gate, and improves the surrounding environment.

[0022] The design of the flow guide plate and the air flow channel can guide and comb the water flow to a certain extent, which helps to improve the water flow state around the gate, reduce the local impact of the water flow on the gate, improve the stability of the gate operation, and also helps the smooth flow of the water flow and reduces the water head loss.

[0023] The mounting arm is located on the front side of the gate body and forms an included angle with the gate body, which makes the whole device compact in structure, meets the gate opening and closing function, reduces the land occupation of the device, and is convenient for installation and use in limited space. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description only constitute some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 It is a left view of the opening and closing mechanism of the application.

[0026] Figure 2 It is a front view of the opening and closing mechanism of the application.

[0027] Figure 3 It is a left view of the air ventilation and shock absorption mechanism of the application.

[0028] Figure 4 It is a front view of the air ventilation and shock absorption mechanism of the application.

[0029] Wherein, 1, gate body; 2, track; 3, mounting arm; 4, guide plate; 5, air flow passage; 6, air hole; 7, gear; 8, air supplement pipe I; 9, air supplement pipe II. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0031] In order to make the above objectives, characteristics and advantages of the present application more apparent, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0032] Reference Figures 1-4 The present application provides a no-wall-through-shaft steel dam gate opening and closing device, comprising:

[0033] The gate body 1 is rotatably connected between the two gate piers at the bottom;

[0034] The opening and closing mechanism comprises a track 2 fixed on the gate pier, the track 2 is of an arc structure, the gate body 1 is fixed with mounting arms 3 on both sides, the mounting arms 3 are slidably connected on the track 2, and a driving assembly is installed on the track 2, which is used to drive the mounting arms 3 to move on the track 2;

[0035] The air-venting and shock-absorbing mechanism is installed on the side of the gate body 1, the gate body 1 is provided with a guide plate 4 at the top, the guide plate 4 is provided with an air flow passage 5 in the length direction, the back of the gate body 1 is provided with a plurality of air holes 6, the air holes 6 are communicated with the air flow passage 5, and the air flow passage 5 is communicated with the air-venting and shock-absorbing mechanism;

[0036] Wherein, the mounting arms 3 are located at the tail end and the head end of the track 2 when the gate body 1 is in the fully open position and the fully closed position, the mounting arms 3 are located at the front side of the gate body 1, and form an included angle with the gate body 1.

[0037] The gate opening and closing mechanism realizes the opening and closing of the gate through the cooperation of the track 2 and the mounting arm 3. The track 2 is fixed on the gate pier and has an arc-shaped structure. The mounting arm 3 on both sides of the gate body 1 is slidingly connected to the track 2. The driving assembly drives the mounting arm 3 to move on the track 2, thereby driving the gate body 1 to rotate around the bottom between the two gate piers, realizing the opening and closing of the gate. When the gate body 1 is in the fully open position and the fully closed position, the mounting arm 3 is located at the tail end and the head end of the track 2 respectively. This design clearly defines the limit position of the gate opening and closing, ensuring that the gate can accurately reach the predetermined state. The air venting and damping mechanism is installed on the side of the gate body 1. The airflow channel 5 is opened in the top guide plate 4 of the gate body 1. A plurality of air vents 6 are opened on the back and are in communication with the airflow channel 5. The airflow channel 5 is also in communication with the air venting and damping mechanism. During the operation of the gate, the water flow impacting the gate will generate vibration and pressure change. Through the communication of the air vents 6, the airflow channel 5 and the air venting and damping mechanism, the gas inside and outside the gate can flow, the pressure inside and outside the gate can be balanced, the vibration caused by the pressure difference can be reduced, and the damping effect can be achieved. At the same time, it is also helpful to improve the water flow state around the gate.

[0038] Further optimization scheme, the end of the mounting arm 3 is rotatably connected with a gear 7, the gear 7 is slidingly connected on the track 2, the track 2 is slidingly connected with a mounting frame, the driving assembly is installed on the mounting frame, the gear 7 is engaged with the track 2, for driving one end of the mounting arm 3 to slide with the track 2.

[0039] Further optimization scheme, the driving assembly includes a driving motor, the driving motor is fixed on the mounting frame, the output shaft of the driving motor is connected with the gear 7.

[0040] Further optimization scheme, the cross-sectional shape of the track 2 is a type, the inner side of the track 2 is provided with a gear slot, the gear 7 is engaged with the track 2 through the gear slot.

[0041] Further optimization scheme, the mounting frame includes an L-shaped mounting plate, the inner wall of the mounting plate is rotatably connected with a guide wheel, the guide wheel is slidingly connected to the top surface of the track 2, the inner wall of the side of the mounting plate is rotatably connected with a positioning wheel, the side of the track 2 is provided with a positioning slot, the cross-sectional shape of the positioning slot is a T-shaped structure, the positioning wheel is slidingly connected in the positioning slot, the outer side of the side of the mounting plate is fixed with a horizontal plate, the driving motor is fixed on the horizontal plate, the gear 7 is rotatably connected to the side of the mounting plate.

[0042] When the gate needs to be opened or closed, the drive motor is started. The drive motor is fixed to the horizontal plate of the mounting frame, and its output shaft begins to rotate. The output shaft of the drive motor is connected to gear 7, driving gear 7 to rotate. Since the cross-sectional shape of track 2 is U-shaped, and the inner surface is provided with toothed grooves, gear 7 meshes with track 2 through the toothed grooves. When gear 7 rotates, it generates a force along track 2. Gear 7 is rotatably connected to the end of mounting arm 3. When gear 7 moves on track 2, it drives mounting arm 3 to slide along track 2. The mounting frame cooperates with track 2 through guide wheels and positioning wheels. The guide wheels are slidably connected to the top surface of track 2, and the positioning wheels are slidably connected in the positioning groove on the side of track 2 (the positioning groove has a T-shaped cross-section), ensuring that the mounting frame and mounting arm 3 move stably on track 2 without deviation or derailment. Mounting arm 3 is fixedly connected to gate body 1. When mounting arm 3 moves on track 2, it drives gate body 1 to rotate around its bottom between the two gate piers, thereby realizing the opening and closing of the gate. When the gate body 1 is in the fully open and fully closed positions, the mounting arm 3 is located at the tail end and head end of the track 2, respectively.

[0043] The scheme is further optimized. The ventilation and shock absorption mechanism includes air supply pipe I8 and air supply pipe II9. Air supply pipe I8 is fixed on the mounting arm 3. Air supply pipe II9 is ​​set as an arc structure and is arranged between the mounting arm 3 and the gate body 1. Air supply pipe II9 is ​​connected to air supply pipe I8 and airflow channel 5.

[0044] The design was further optimized so that the length of the mounting arm 3 is greater than the height of the gate body 1. times.

[0045] The design was further optimized so that the angle between the gate body 1 and the mounting arm 3 is 45°.

[0046] During gate operation, the impact of water flow on the gate causes pressure changes inside and outside the gate body 1. Air supply pipe I8 is fixed to the mounting arm 3, and air supply pipe II9 is ​​an arc-shaped structure positioned between the mounting arm 3 and the gate body 1. Air supply pipe II9 is ​​connected to air supply pipe I8 and airflow channel 5. When a pressure difference occurs inside and outside the gate, gas enters or exits the airflow channel 5 through air supply pipes I8 and II9. The airflow channel 5 is connected to several vents 6 on the back of the gate body 1, allowing gas to circulate and balance the pressure. By balancing the pressure inside and outside the gate, gate vibration caused by the pressure difference is reduced, thus providing shock absorption and also helping to improve the water flow around the gate.

[0047] To further optimize the design, limit switches are added to the device, installed at the beginning and end of track 2 respectively. When the mounting arm 3 moves the gate body 1 to the fully open or fully closed position, the mounting arm 3 triggers the limit switches, which then send a signal to stop the drive motor from rotating, preventing the mounting arm 3 and the gate body 1 from exceeding their limit positions and causing equipment damage.

[0048] Further optimization scheme, in the connection of the air supplement pipe I 8 and the air supplement pipe II 9 set up sealing ring, prevent gas leakage, ensure the damping effect of the ventilation damping mechanism.

[0049] In the air flow channel 5 entrance of the deflector 4, set up filter screen, prevent sundries into the air flow channel 5, block the ventilation hole 6, influence the normal work of the ventilation damping mechanism. Regularly clean the filter screen.

[0050] In the description of the present application, it is understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0051] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A wall-penetrating shaft steel dam gate opening and closing device, characterized in that, Include: Gate body (1), the gate body (1) bottom rotary connection between two piers; Opening and closing mechanism, the track (2) is fixed on the pier, the track (2) is arc structure, the both sides of the gate body (1) are respectively fixed with installation arm (3), the installation arm (3) is slidably connected on the track (2), the track (2) is installed with drive assembly, the drive assembly is used to drive the installation arm (3) moves on the track (2); Ventilation damping mechanism, the ventilation damping mechanism is installed on the side of the gate body (1), the top of the gate body (1) is installed with guide plate (4), the guide plate (4) is provided with airflow passage (5) in the length direction, the back of the gate body (1) is provided with a plurality of air holes (6), the air hole (6) is communicated with the airflow passage (5), the airflow passage (5) is communicated with the ventilation damping mechanism; Wherein, the installation arm (3) is located at the tail end and the head end of the track (2) when the gate body (1) is in full open position and full closed position, the installation arm (3) is located at the front side of the gate body (1), and the included angle between the installation arm (3) and the gate body (1) is formed.

2. The wall-penetrating shaft-free steel dam gate opening and closing device according to claim 1, characterized in that: The end of the installation arm (3) is rotatably connected with a gear (7), the gear (7) is slidably connected with the track (2), the track (2) is slidably connected with a mounting bracket, the drive assembly is mounted on the mounting bracket, the gear (7) is engaged with the track (2), used to drive one end of the installation arm (3) to slide with the track (2).

3. The wall-penetrating shaft-free steel dam gate opening and closing device according to claim 2, characterized in that: The drive assembly includes a drive motor, the drive motor is fixed on the mounting bracket, the output shaft of the drive motor is connected with the gear (7).

4. The wall-penetrating shaft-free steel dam gate opening and closing device according to claim 2, characterized in that: The cross-sectional shape of the track (2) is a type, the inner side of the track (2) is provided with a gear slot, the gear (7) is engaged with the track (2) through the gear slot.

5. The wall-less shaft dam gate opening and closing device according to claim 3, characterized in that: The mounting bracket includes an L-shaped mounting plate, the inner wall of the mounting plate is rotatably connected with a guide wheel, the guide wheel is slidably connected with the top surface of the track (2), the inner wall of the side of the mounting plate is rotatably connected with a positioning wheel, the side of the track (2) is provided with a positioning slot, the cross-sectional shape of the positioning slot is a T-shaped structure, the positioning wheel is slidably connected in the positioning slot, the outer side of the side of the mounting plate is fixed with a horizontal plate, the drive motor is fixed on the horizontal plate, the gear (7) is rotatably connected with the side of the mounting plate.

6. The wall-less shaft dam gate opening and closing device according to claim 1, characterized in that: The ventilation damping mechanism includes a gas supplement pipe I (8) and a gas supplement pipe II (9), the gas supplement pipe I (8) is fixed on the installation arm (3), the gas supplement pipe II (9) is arranged between the installation arm (3) and the gate body (1) and is arranged in an arc structure, the gas supplement pipe II (9) is communicated with the gas supplement pipe I (8) and the airflow passage (5).

7. The wall-less shaft dam gate opening and closing device according to claim 1, characterized in that: The length of the mounting arm (3) is greater than the height of the gate body (1) by a factor of 2.

8. The wall-less shaft dam gate opening and closing device according to claim 1, characterized in that: The included angle between the gate body (1) and the installation arm (3) is 45°.

Images