Driving arm type bidirectional rotating gate

Abstract

The invention discloses a driving arm type bidirectional rotating gate which comprises a rotating gate body, a hydraulic oil cylinder and a locking device, and the hydraulic oil cylinder and the locking device are both installed on gate piers on the two sides of the rotating gate body. The rotary gate comprises a gate body, a supporting arm and a driving arm, the supporting arm and the driving arm are arranged at the two ends of the gate body, the gate body and the supporting arm are connected or welded into a whole through high-strength bolts, one end of the driving arm is installed at the rotating center of the supporting arm, the driving arm and the supporting arm are hinged to a supporting hinge installed in a gate pier, and the other end of the driving arm is hinged to a gate pier. The middle of the driving arm is connected with the supporting arm through a pin shaft, the other end of the driving arm is connected with a hanging head of the hydraulic oil cylinder through a pin shaft, and the rotary gate is driven by the hydraulic oil cylinder to rotate around the supporting hinge. And a locking bolt of the locking device is inserted into a locking pin hole in the support arm to lock the rotary gate. The method is convenient to operate, high in efficiency and safe and reliable in operation process.

Description

Technical Field

[0001] The invention relates to a gate used in water conservancy and hydropower engineering and water transport engineering, and in particular to a driving arm type bidirectional rotating gate. Background Art

[0002] The two-way revolving gate can be rotated downward to open and realize flood discharge from the top of the gate. When the gate body lies in the gate niche at the bottom of the gate, it can meet the navigation requirements of ships; it can also be rotated upward to above the water surface to meet the conditions for inspection and maintenance of the gate body. And because the two-way revolving gate does not need to set up an upper building in the engineering layout, it can be well coordinated with the surrounding landscape of the project. Therefore, the two-way revolving gate has a broad prospect for engineering application.

[0003] The existing two-way rotating gate includes a gate body, a support arm, a support hinge and a hydraulic cylinder. The support arm is hinged to the gate pier through the support hinge, and the gate rotates around the support hinge. The support arm of the existing two-way rotating gate is provided with two lifting ears at the far end and the near end, which are respectively connected to the hydraulic cylinder lifting head: the hydraulic cylinder lifting head is connected to the lifting ear at the near end of the support arm to drive the gate body to rotate downward from the water-blocking state to realize the normal opening and closing of the gate; the hydraulic cylinder lifting head is connected to the lifting ear at the far end of the support arm to drive the gate body to rotate upward from the water-blocking state to realize the inspection and maintenance of the gate body.

[0004] The existing two-way revolving gate cannot be directly rotated upward from the fully closed water retaining position. It is necessary to switch the connection point between the driving hydraulic cylinder and the revolving gate before the revolving gate can be rotated upward to the gate top for inspection and maintenance. However, when the hydraulic cylinder head is switched between the two lifting ears at the far end and the near end of the support arm, the position of the hydraulic cylinder head must be adjusted and fixed at any time through special auxiliary equipment to ensure that the hydraulic cylinder head and the support arm lifting ears are accurately aligned before the connection can be completed. This process is extremely difficult to operate in practice, with extremely low efficiency and construction safety issues.

[0005] The existing two-way rotating gate adopts fan-shaped support arms or Y-shaped special-shaped support arms, which have the following defects:

[0006] 1) It is impossible to add a counterweight to the support arm to balance the gate's deadweight, so the driving torque of the drive device is large; 2) The support arm structure is weak, and the support arm is easily deformed under the impact of navigable ships, causing the gate to fail to operate normally; 3) The support hinge is exposed to the outside and is easily damaged by direct impact from navigable ships, posing a safety hazard. Therefore, the existing design of the working cylinder lifting point switching of the two-way rotating gate has shortcomings, and the structural type of its support arm is also unreasonable. Summary of the invention

[0007] The purpose of the present invention is to solve the above problems and provide a bidirectional rotating gate with convenient, fast, safe and reliable hanging point switching operation.

[0008] The technical solution adopted by the present invention is:

[0009] A driving arm type two-way rotating gate, comprising a rotating gate, a hydraulic cylinder and a locking device, wherein the hydraulic cylinder and the locking device are both installed on the gate piers on both sides of the rotating gate; the rotating gate comprises a door body, a support arm and a driving arm, wherein the support arm and the driving arm are both arranged at both ends of the door body, the door body and the support arm are connected or welded as a whole by high-strength bolts, one end of the driving arm is installed at the rotation center of the support arm, and together with the support arm, it is hinged to a support hinge installed in the gate pier, the middle part of the driving arm is connected to the support arm by a pin shaft, and the other end of the driving arm is connected to the hanging head of the hydraulic cylinder by a pin shaft, the rotating gate is driven by the hydraulic cylinder to rotate around the support hinge, and the locking pin of the locking device is inserted into the locking pin hole on the support arm to lock the rotating gate.

[0010] Furthermore, a first driving pin hole and a second driving pin hole are provided on the support arm; three locking pin holes are provided on the support arm: a first locking pin hole located at the closed water-blocking position of the rotating gate, a second locking pin hole on the door body rotated to the maintenance position, and a third locking pin hole at the door body lying in the door niche at the bottom of the gate; a lower end pin hole, a middle pin hole, and an upper end pin hole are provided on the driving arm; the lower end pin hole is installed at the rotation center of the support arm, and the lower end of the driving arm is hinged together with the support arm with a support hinge installed in the gate pier, and the upper end pin hole is connected to the lifting head of the hydraulic cylinder through a pin shaft.

[0011] Furthermore, the middle pin hole of the driving arm is usually connected and fixed to the first driving pin hole of the support arm through a pin shaft, and the rotary gate is driven by the hydraulic cylinder to rotate downward to open, or rotate upward from the open position to close the rotary gate to block water.

[0012] Furthermore, when the revolving gate switches from a normal operating condition to a maintenance condition, the operation method of switching the driving arm position is as follows: the revolving gate is locked in the first locking pin hole of the fully closed water-blocking position of the revolving gate by the locking pin of the locking device, and after the pin shaft is removed from the middle pin hole of the driving arm, the driving arm is driven by the hydraulic cylinder to rotate to the second driving pin hole of the support arm and is fixed by the pin shaft; after the revolving gate is unlocked, the revolving gate is rotated upward to the maintenance position under the drive of the hydraulic cylinder and the locking pin is inserted into the second locking pin hole on the support arm.

[0013] Furthermore, when the revolving gate switches from the maintenance condition to the normal operating condition, the operation method of switching the driving arm position is: the revolving gate is locked to the first locking pin hole of the fully closed water-blocking position of the revolving gate by the locking pin of the locking device, and after the pin shaft is removed from the middle pin hole of the driving arm, the driving arm is driven by the hydraulic cylinder to rotate to the first driving pin hole of the support arm and is fixed by the pin shaft; after the revolving gate is unlocked, the revolving gate is rotated downward to the fully open position under the drive of the hydraulic cylinder and the locking pin is inserted into the third locking pin hole on the support arm.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1) The present invention adopts a rotatable driving arm driving mode, and there is no need to disassemble the lifting head connection of the driving hydraulic cylinder. The driving arm position can be switched while maintaining the lifting head connection of the driving hydraulic cylinder. Therefore, the operation is convenient, efficient, and the operation process is safe and reliable.

[0016] 2) The present invention adopts a disc-type support arm, and a counterweight is loaded in the box on the opposite side of the door body to balance the deadweight of the door body, thereby reducing the driving torque of the driving device and enhancing the rotational stability of the revolving gate.

[0017] 3) The present invention adopts a disc-type support arm, which has high structural rigidity and strength and strong impact resistance, fully ensuring the safe and stable operation of the rotating gate.

[0018] 4) The present invention adopts a disc-type support arm to surround the cantilever support hinge of the rotating gate at the center, thereby protecting the cantilever support hinge from direct impact by ships and improving the navigation safety of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top view of the present invention when the door body is in a closed water retaining position;

[0020] Figure 2 It is a side cross-sectional view of the present invention when the door body is in a closed water retaining position;

[0021] Figure 3 It is a side sectional view of the present invention when the door body is in the door niche at the bottom of the gate;

[0022] Figure 4 It is a schematic diagram of the position switching of the driving arm driving the pin hole when the door body is in the closed water blocking position of the present invention;

[0023] Figure 5 It is a side sectional view of the present invention when the door body is in the gate top inspection position.

[0024] In the figure: 1-revolving gate; 11-gate body; 12-disc support arm; 121-first drive pin hole; 122-second drive pin hole; 123-first locking pin hole; 124-second locking pin hole; 125-third locking pin hole; 13-counterweight; 2-drive arm; 3-hydraulic cylinder; 4-locking device; 5-cantilever support hinge. DETAILED DESCRIPTION

[0025] The present invention is described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the present invention, so all equivalent technical solutions should also belong to the scope of the present invention. These all belong to the protection scope of the present invention.

[0026] like Figure 1 As shown, a driving arm type bidirectional rotating gate of the present invention comprises a rotating gate 1 located between gate piers on both sides, a driving arm 2, a hydraulic cylinder 3 installed on the gate piers on both sides, a locking device 4, and a cantilever support hinge 5. The rotating gate 1 comprises a gate body 11, a disc support arm 12, and a counterweight 13 arranged in the disc support arm 12.

[0027] like Figure 2 As shown, the door body 11 and the disc support arm 12 are connected or welded as a whole by high-strength bolts, and the disc support arm 12 and the driving arm 2 are hinged with the cantilever support hinge 5 and rotate around the cantilever support hinge 5. The disc support arm 12 is provided with a first locking pin hole 123, a second locking pin hole 124, and a third locking pin hole 125. When the locking device 4 pushes the pin into a certain locking hole, the rotating gate 1 is locked. The disc support arm 12 is provided with a first driving pin hole 121 and a second driving pin hole 122. The middle part of the driving arm 2 is provided with an axial hole, which can be connected to the first driving pin hole 121 and the second driving pin hole 122 on the disc support arm 12 through an axis. The end of the driving arm 2 is connected to the hanging head of the hydraulic oil cylinder 3 through an axis. When the middle shaft hole of the driving arm 2 is connected to the first driving pin hole 121 through the shaft, the rotary gate 1 can be opened and closed normally under the drive of the hydraulic cylinder 3: the gate body 11 can reciprocate between the closed water retaining position and the position lying in the gate bottom niche; Figure 4 , Figure 5 As shown, when the middle shaft hole of the driving arm 2 is connected to the second driving pin hole 122 through the shaft, the door body 11 can reciprocate between the closed water retaining position and the gate top maintenance position under the drive of the hydraulic cylinder 3.

[0028] like Figure 2As shown, a counterweight 13 is loaded inside the box of the disc support arm 12, and the counterweight 13 and the door body 11 are respectively arranged on both sides of the cantilever support hinge 5 to partially offset the self-weight torque of the door body 11, which is beneficial to the stable operation of the revolving gate 1 and can reduce the rated driving force of the hydraulic cylinder 3 to save investment.

[0029] like Figure 2 As shown, when the rotary gate 1 is in the fully closed water blocking state, the locking device 4 pushes the latch into the first locking pin hole 123, and the rotary gate 1 is locked in the fully closed water blocking position.

[0030] like Figure 3 As shown, the revolving gate 1 is in a fully open state, at which time the door body 11 lies in the door niche at the bottom of the gate, the locking device 4 pushes the bolt into the third locking pin hole 125, and the revolving gate 1 is locked in the fully open position.

[0031] like Figure 4 , Figure 5 As shown, in order to realize the upward rotation of the door body 11, the driving arm 2 needs to be switched from the first driving pin hole 121 to the second driving pin hole 122. The specific working method is: Figure 4 As shown, when the revolving gate 1 is in the fully closed water blocking position, the locking device 4 pushes the bolt into the first locking pin hole 123 to lock the revolving gate 1. Then remove the connecting shaft between the driving arm 2 and the disc support arm 12, and then the hydraulic cylinder 3 pushes the driving arm 2 to rotate around the cantilever support hinge 5 to the second driving pin hole 122, and then connect the driving arm 2 and the disc support arm 12 with a pin shaft, and the hydraulic cylinder 3 pulls the driving arm 2 to drive the revolving gate 1 to rotate until the door body 11 lies on the gate top for inspection, as shown in FIG. Figure 5 As shown, finally the locking device 4 pushes the bolt into the second locking pin hole 124 to lock the rotating gate 1.

[0032] like Figure 5 As shown, the revolving gate 1 is in the maintenance position. After the maintenance is completed, the revolving gate 1 is unlocked by the locking device 4, and the revolving gate 1 is rotated downward to the closed water retaining position under the push of the hydraulic cylinder 3. The locking device 4 pushes the latch into the first locking pin hole 123, and the revolving gate 1 is locked in the fully closed water retaining position. Then, the driving arm 2 is switched from the second driving pin hole 122 to the first driving pin hole 121. The specific working method is as follows: Figure 4 As shown, the connecting shaft between the driving arm 2 and the disc support arm 12 is removed, and then the hydraulic cylinder 3 pulls the driving arm 2 to rotate around the cantilever support hinge 5 to the first driving pin hole 121, and then the driving arm 2 and the disc support arm 12 are connected with the pin shaft. Under the drive of the hydraulic cylinder 3, the door body 11 rotates downward and opens until it is completely lying in the door niche at the bottom of the gate, and the locking device 4 pushes the pin into the third locking pin hole 125 to lock the revolving gate 1.

[0033] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A driving arm type two-way rotating gate, characterized in that: It includes a revolving gate, a hydraulic cylinder and a locking device, wherein the hydraulic cylinder and the locking device are both installed on the gate piers on both sides of the revolving gate; the revolving gate includes a door body, a support arm and a driving arm, wherein the support arm and the driving arm are both arranged at both ends of the door body, and the door body and the support arm are connected or welded as a whole by high-strength bolts, one end of the driving arm is installed at the rotation center of the support arm, and is hinged with the support arm and the support hinge installed in the gate pier together with the support arm, the middle part of the driving arm is connected to the support arm by a pin shaft, and the other end of the driving arm is connected to the hanging head of the hydraulic cylinder by a pin shaft, the revolving gate is driven by the hydraulic cylinder to rotate around the support hinge, and the locking pin of the locking device is inserted into the locking pin hole on the support arm to lock the revolving gate.

2. The driving arm type two-way rotating gate according to claim 1, characterized in that: The support arm is provided with a first driving pin hole and a second driving pin hole; the support arm is provided with a first locking pin hole located at the closed water-blocking position of the rotating gate, a second locking pin hole on the door body rotated to the maintenance position and a third locking pin hole on the door body lying in the door niche position at the bottom of the gate; the driving arm is provided with a lower end pin hole, a middle pin hole and an upper end pin hole; the lower end pin hole is installed at the rotation center of the support arm, the lower end of the driving arm is hinged with the support arm and the support hinge installed in the gate pier, and the upper end pin hole is connected to the lifting head of the hydraulic cylinder through a pin shaft.

3. The driving arm type two-way rotating gate according to claim 2, characterized in that: The middle pin hole of the driving arm is usually connected and fixed with the first driving pin hole of the support arm through a pin shaft, and the rotary gate is driven by the hydraulic cylinder to rotate downward to open, or rotate upward from the open position to close the rotary gate to block water.

4. The driving arm type two-way rotating gate according to claim 2, characterized in that: When the revolving gate switches from normal operating condition to maintenance condition, the revolving gate is locked in the first locking pin hole of the fully closed water-blocking position of the revolving gate through the locking pin of the locking device. After the pin shaft is removed from the middle pin hole of the driving arm, the driving arm is driven by the hydraulic cylinder to rotate to the second driving pin hole of the support arm and is fixed by the pin shaft; after the revolving gate is unlocked, the revolving gate is rotated upward to the maintenance position under the drive of the hydraulic cylinder and the locking pin is inserted into the second locking pin hole of the support arm.

5. The driving arm type two-way rotating gate according to claim 2, characterized in that: When the revolving gate switches from the maintenance condition to the normal operation condition, the revolving gate is locked in the first locking pin hole of the fully closed water-blocking position of the revolving gate through the locking pin of the locking device. After the pin shaft is removed from the middle pin hole of the driving arm, the driving arm is driven by the hydraulic cylinder to rotate to the first driving pin hole of the support arm and is fixed by the pin shaft; after the revolving gate is unlocked, the revolving gate is rotated downward to the fully open position under the drive of the hydraulic cylinder and the locking pin is inserted into the third locking pin hole of the support arm.

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