Bottom shaft driven flap gate anti-vibration locking device

Abstract

The utility model belongs to the technical field of locking mechanisms, particularly relates to an anti-vibration locking device for a bottom shaft driven flap gate, and solves the problems that the stress condition of the bottom shaft driven flap gate is unstable, the gate vibrates, and the gate is unsafe to operate in the prior art. When the gate needs to be unlocked, the hydraulic hoist or the electric push rod is started again, the locking shaft is pulled back through the opposite acting force, the friction force is eliminated, the gate can be freely opened, and the gate can be unlocked. The compression spring plays a role in auxiliary locking and buffering, when the gate is locked, the compression spring ejects the locking shaft out through the elastic force of the compression spring, it is guaranteed that enough friction force is generated between the locking shaft and the side wall embedded part, and the anti-vibration locking device can be installed on the top of the gate or any position in the front and back direction.

Description

Technical Field

[0001] The utility model relates to the technical field of locking mechanisms, in particular to a bottom shaft driven flap gate anti-vibration locking device. Background Art

[0002] At present, the door leaf structure of the known bottom shaft driven flap gate is fixed on the bottom shaft, and the whole door leaf is a cantilever structure. When water flows through the top of the gate, water pressure and hydraulic impact force will be generated. These forces will act on the gate and cause the gate to vibrate. The use of this bottom shaft driven flap gate anti-vibration locking device can eliminate the vibration of the gate and ensure the safe operation of the gate.

[0003] The authorization announcement number in the prior art is: CN207846362U, and the name is a new type of arc-shaped bottom shaft driven flap gate, including a crank arm structure, a hydraulic hoist, a steel dam door leaf, a bottom shaft structure and a hinge seat. Hoist chambers are arranged at both ends of the steel dam door leaf. The steel dam door leaf adopts an arc-shaped panel, and a plurality of ribs are longitudinally arranged on the arc-shaped panel in the same bending direction as the arc-shaped panel. The patent replaces the longitudinal beam of the original door leaf with a higher density longitudinal arc rib plate, and eliminates the door leaf cross beam, which greatly reduces the production cycle of the gate door leaf. The specifications of the door leaf cutting are reduced, which is convenient for centralized cutting and semi-finished product control, and can effectively improve material utilization and personnel efficiency.

[0004] However, if the existing patent is affected by severe weather such as heavy rain or typhoon, the water level difference between upstream and downstream will be large when the steel dam gate passes water. Since the gate force structure is a cantilever beam, the gate leaf force is relatively unstable, and the gate will vibrate, making the operation of the gate unsafe. Utility Model Content

[0005] The utility model aims to provide a bottom shaft driven flap gate anti-vibration locking device, which solves the problem in the related art that the gate force structure is a cantilever beam, the gate leaf force is unstable, the gate vibrates, and the gate operation is unsafe.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bottom shaft driven flap gate anti-vibration locking device, comprising a locking mechanism, wherein the locking mechanism comprises a locking seat, a connecting sleeve, a locking shaft, a sensing belt, a proximity switch fixing plate, a telescopic structure, a compression spring, a bolt 1, a spring washer 1, a bolt 2, a spring washer 2, a nut, a cross countersunk screw, a bolt 3, and a friction plate;

[0007] The locking seat is welded and fixed to the top of the top beam, the locking shaft is sleeved inside the locking seat, the connecting sleeve is installed on one side of the locking seat, the sensing belt is installed on one end of the locking shaft, the proximity switch fixing plate is fixed on the inner wall edge of the connecting sleeve, the telescopic structure is installed on one side of the connecting sleeve, the compression spring is sleeved on the locking shaft, and both ends of the compression spring are in contact and connected with the inner wall of the locking seat.

[0008] Preferably, the friction plate is fixedly connected to the other end of the locking shaft, and the friction plate is made of polytetrafluoroethylene material.

[0009] Preferably, the locking seat and the connecting sleeve are bolted together by means of the spring washer 1 and the bolt 1.

[0010] Preferably, the telescopic structure and the connecting sleeve are connected by the second spring washer, the second bolt and the nut and bolt.

[0011] Preferably, the telescopic structure and the locking shaft are screwed together by means of the cross countersunk screw.

[0012] Preferably, the proximity switch fixing plate and the connecting sleeve are connected by three bolts.

[0013] Preferably, the telescopic structure can be a hydraulic gate hoist or an electric push rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model adopts the arrangement of structures such as the hydraulic gate hoist and the compression spring. When it is necessary to lock the gate, the hydraulic gate hoist or the electric push rod stops working. At this time, the compression spring pushes out the locking shaft, making it in close contact with the side wall embedded parts, generating sufficient friction to prevent the gate from moving. When it is necessary to unlock the gate, the hydraulic gate hoist or the electric push rod is started again, and the locking shaft is pulled back by the reverse force to eliminate the friction so that the gate can be opened freely. The compression spring plays a role of auxiliary locking and buffering. When the gate is locked, the compression spring pushes out the locking shaft by its elastic force to ensure that sufficient friction is generated between the locking shaft and the side wall embedded parts, which not only improves the stability of the gate, but also reduces the noise and wear caused by vibration. During the gate unlocking process, the elastic force of the compression spring also plays a certain buffering role, reducing the impact and vibration between the locking shaft and the side wall embedded parts, and further extending the service life of the device.

[0016] 2. The utility model has a large friction coefficient through the arrangement of structures such as the locking shaft and the friction plate, especially the friction plate made of polytetrafluoroethylene material. When the locking shaft is pressed against the side wall embedded part, the existence of the friction plate can significantly increase the friction between the locking shaft and the side wall embedded part, thereby enhancing the locking effect and ensuring that the gate is more stable and safe in the locked state. The friction plate is located between the locking shaft and the side wall embedded part. When the locking shaft moves or is vibrated, it can withstand such movement and impact to avoid wear caused by direct contact between the locking shaft and the side wall embedded part, which not only protects these components and prolongs their service life, but also ensures the long-term stable operation of the device. The thickness of the friction plate can be adjusted as needed, which helps to adjust the gap between the locking shaft and the side wall embedded part to ensure that the contact between them is closer and more uniform. Appropriate gap adjustment can further improve the locking effect and reduce vibration and noise. The friction plate forms a buffer layer between the locking shaft and the side wall embedded part. When the gate is subjected to external force, it can absorb part of the impact force and reduce damage to the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the locking mechanism of the utility model;

[0019] Figure 3 is a cross-sectional view of the locking mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the position of the induction switch of the utility model.

[0021] In the figure: 100, locking mechanism; 1, locking seat; 2, connecting sleeve; 3, locking shaft; 4, sensing belt; 5, proximity switch fixing plate; 6, telescopic structure; 7, compression spring; 8, bolt one; 9, spring washer one; 10, bolt two; 11, spring washer two; 12, nut; 13, cross countersunk screw; 14, bolt three; 15, friction plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3A bottom shaft driven flap gate anti-vibration locking device comprises a locking mechanism 100, which comprises a locking seat 1, a connecting sleeve 2, a locking shaft 3, a sensing belt 4, a proximity switch fixing plate 5, a telescopic structure 6, a compression spring 7, a bolt 1 8, a spring washer 1 9, a bolt 2 10, a spring washer 2 11, a nut 12, a cross countersunk screw 13, a bolt 3 14, and a friction plate 15. The locking seat 1 is welded and fixed to the top of the top beam 16, the locking shaft 3 is sleeved inside the locking seat 1, the connecting sleeve 2 is installed on one side of the locking seat 1, the sensing belt 4 is installed at one end of the locking shaft 3, the proximity switch fixing plate 5 is fixed on the inner wall edge of the connecting sleeve 2, the telescopic structure 6 is installed on one side of the connecting sleeve 2, the compression spring 7 is sleeved on the locking shaft 3, and the two ends of the compression spring 7 are in contact and connected with the inner wall of the locking seat 1.

[0024] See also Figure 1-3 The friction plate 15 is glued to the other end of the locking shaft 3, and the friction plate 15 is made of polytetrafluoroethylene material.

[0025] See also Figure 1-3 The locking seat 1 and the connecting sleeve 2 are bolted together by a spring washer 9 and a bolt 8, the telescopic structure 6 and the connecting sleeve 2 are bolted together by a spring washer 11, a bolt 10 and a nut 12, the telescopic structure 6 and the locking shaft 3 are bolted together by a cross countersunk screw 13, and the proximity switch fixing plate 5 and the connecting sleeve 2 are bolted together by a bolt 3 14.

[0026] The specific implementation process of the utility model is as follows: two sets of anti-vibration locking devices are specially designed and installed on the top of the gates on both sides of the upper part of the gate 17 structure (or in front of or behind the gate). The main function of these devices is to ensure the stability of the gate 17 and prevent vibration when the gate 17 needs to be locked, so as to ensure the safety of the water conservancy structure. When the gate 17 is locked, the hydraulic opening and closing machine or the electric push rod stops working, and it is no longer relied on to control the opening and closing of the gate 17. Instead, a set of carefully designed compression spring 7 systems is used to operate the locking shaft 3. The compression spring 7 will be activated when the gate 17 is closed and locked, and its force will push the locking shaft 3 to the outside of the door leaf until the locking shaft 3 is tightly against the side wall embedded parts.

[0027] Furthermore, in order to ensure that sufficient friction can be generated between the locking shaft 3 and the side wall embedded parts, the friction plate 15 at the front end of the locking shaft 3 uses a special material (polytetrafluoroethylene) with a large friction coefficient. This material is selected so that when the locking shaft 3 is pressed against the side wall embedded parts, a strong friction force can be formed between the two, thereby ensuring that the gate 17 will not be easily moved or vibrated in the locked state. When the gate 17 needs to be opened or closed, the hydraulic gate opener or electric push rod will start and work again. The hydraulic gate opener or electric push rod will generate a reverse force to pull the locking shaft 3 back from the side wall embedded parts by about 50 mm. Due to the movement of this distance, the friction between the locking shaft 3 and the side wall embedded parts is eliminated, and the gate 17 can therefore be opened and closed freely.

[0028] Furthermore, the sensing belt 4 is installed at one end of the locking shaft 3. When the locking shaft 3 moves due to the operation of the hydraulic gate hoist or the electric push rod 6, the sensing belt 4 can sense this position change. By cooperating with the proximity switch, the proximity switch is installed on the proximity switch fixing plate 5. The sensing belt can accurately monitor whether the locking shaft 3 is in the locked or unlocked position. When the position of the locking shaft 3 changes, the relative position of the sensing belt 4 and the proximity switch also changes accordingly. When the locking shaft 3 is in the locked position, the sensing belt 4 triggers the proximity switch and sends a signal to the control system, indicating that the gate has been successfully locked. When the locking shaft 3 is unlocked, the sensing belt 4 also sends a signal to the control system, indicating that the gate can now be opened or closed freely. By real-time monitoring of the position of the locking shaft 3, the combination of the sensing belt 4 and the proximity switch ensures the safe operation of the gate.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bottom shaft driven flap gate anti-vibration locking device, comprising a locking mechanism (100) and a top beam, characterized in that: The locking mechanism (100) comprises a locking seat (1), a connecting sleeve (2), a locking shaft (3), a sensing belt (4), a proximity switch fixing plate (5), a telescopic structure (6), and a compression spring (7); The locking seat (1) is welded and fixed on the top of the top beam, the locking shaft (3) is sleeved inside the locking seat (1), the connecting sleeve (2) is installed on one side of the locking seat (1), the sensing belt (4) is installed on one end of the locking shaft (3), the proximity switch fixing plate (5) is fixed on the inner wall edge of the connecting sleeve (2), the telescopic structure (6) is installed on one side of the connecting sleeve (2), the compression spring (7) is sleeved on the locking shaft (3), and the two ends of the compression spring (7) are in contact and connected with the inner wall of the locking seat (1).

2. The anti-vibration locking device for a bottom shaft driven flap gate according to claim 1, characterized in that: The other end of the locking shaft (3) is fixedly connected with a friction plate (15), and the friction plate (15) is made of polytetrafluoroethylene material.

3. The anti-vibration locking device for a bottom shaft driven flap gate according to claim 2, characterized in that: The locking seat (1) and the connecting sleeve (2) are bolted together via a spring washer (9) and a bolt (8).

4. The anti-vibration locking device for a bottom shaft driven flap gate according to claim 3, characterized in that: The telescopic structure (6) and the connecting sleeve (2) are bolted together via a second spring washer (11), a second bolt (10) and a nut (12).

5. The anti-vibration locking device for a bottom shaft driven flap gate according to claim 4, characterized in that: The telescopic structure (6) and the locking shaft (3) are screw-connected via a cross countersunk screw (13).

6. The anti-vibration locking device for a bottom shaft driven flap gate according to claim 5, characterized in that: The proximity switch fixing plate (5) and the connecting sleeve (2) are connected by bolt three (14).

7. The anti-vibration locking device for a bottom shaft driven flap gate according to claim 6, characterized in that: The telescopic structure (6) is a hydraulic hoist.

Images