Rail type movable mechanical air door lock

Abstract

The utility model discloses a rail type movable mechanical air door lock which comprises a first guide rod (2-1), a second guide rod (2-2), a first interlocking frame (3-1), a second interlocking frame (3-2), a first return spring (4-1), a second return spring (4-2), a first lock hook (5-1), a second lock hook (5-2), a guide rail groove (6), a first stroke spring (7-1), a second stroke spring (7-2), a fixing frame (8) and a cover plate. According to the rail type movable mechanical air door locking device, locking of the air doors does not need external force, mutual locking of the air doors is achieved only through mutual restraining pulling force between the air doors and elastic potential energy of the stroke spring, and compared with traditional locking, the rail type movable mechanical air door locking device is safer and more reliable.

Description

Technical Field

[0001] The utility model relates to the field of air doors, in particular to a track-type movable mechanical air door lock. Background Art

[0002] Damper is the primary ventilation structure in coal mines, capable of blocking airflow while allowing vehicles and pedestrians to pass through. Its function is to ensure that underground airflow flows along a prescribed route and direction, thereby controlling the airflow. To prevent airflow short-circuiting and disrupting the entire ventilation system when the damper is open, at least two dampers must be installed in the same tunnel and locked. This also ensures the safety of pedestrians and vehicles passing through the dampers.

[0003] Traditional damper locking systems rely on the weight balance between the device's counterweight and the bucket to lock the damper. The main components include a bucket, mounting bracket, pulley, and wire rope. The working principle is that two pulleys are mounted on the mounting bracket and fixed to the roof with expansion screws. A wire rope is passed through the pulleys and connected to the bucket, with a certain length reserved. The wire rope is connected to the dampers at both ends. When the first damper opens, the wire rope is stretched, lifting the bucket. This creates a balanced tension between the two dampers, preventing the other damper from opening. When the first damper closes, the bucket's own weight retracts the wire rope. This type of system is prone to the situation where the damper with greater opening force can cause the damper with less force to close, causing the damper locking system to fail. Furthermore, due to the height limitations of underground tunnels, placing the bucket on the roof between the two dampers can easily lead to damage from vehicle collisions, making the locking system unreliable and limiting its applicability. Frequent maintenance and replacement of components within the system are also required. Utility Model Content

[0004] The purpose of the utility model is to provide a track-type movable mechanical damper lock, including a first guide rod, a second guide rod, a first interlocking frame, a second interlocking frame, a first return spring, a second return spring, a first locking hook, a second locking hook, a guide rail groove, a first travel spring, a second travel spring, a fixing frame, and a cover plate.

[0005] The first guide rod is fixed on the first chain frame.

[0006] The second guide rod is fixed on the second chain frame.

[0007] The first chain frame and the second chain frame are installed on the guide rail groove and can slide on the guide rail groove.

[0008] One end of the first travel spring is connected to the first guide rod, and the other end is connected to the first locking hook.

[0009] One end of the second travel spring is connected to the second guide rod, and the other end is connected to the second locking hook.

[0010] The first locking hook and the second locking hook are connected to the fixing frame.

[0011] A first return spring is installed below the first locking hook.

[0012] A second return spring is installed below the second locking hook.

[0013] The cover plate is used to close the fixing frame.

[0014] Furthermore, the track-type movable mechanical damper is locked and fixed on the middle top plate of damper No. 1 and damper No. 2.

[0015] Furthermore, a first damper connecting ring and a second damper connecting ring are respectively installed and fixed on damper No. 1 and damper No. 2.

[0016] The first guide rod is connected to the first damper connecting ring through a steel wire rope and a pulley.

[0017] The second guide rod is connected to the second damper connecting ring through a steel wire rope and a pulley.

[0018] Furthermore, the No. 1 damper is in the open state, the first locking hook hooks the second guide rod, locks the second chain frame, and the No. 2 damper is in the closed state.

[0019] Furthermore, the No. 2 damper is in the open state, the second locking hook is actuated to lock the first interlocking frame, and the No. 1 damper is in the closed state.

[0020] Furthermore, a safety rope is connected between the first guide rod and the second guide rod.

[0021] The safety rope is used to protect the first locking hook, the second locking hook, the first chain frame, and the second chain frame.

[0022] Furthermore, when the damper is closed, the first travel spring automatically pulls back the first guide rod and the safety rope.

[0023] The second travel spring automatically pulls back the second guide rod and the safety rope.

[0024] Furthermore, the center positions of the locking hook and the fixing frame are both provided with through holes, through which the locking hook and the fixing frame are bolted.

[0025] The technical effect of the present invention is unquestionable, and the beneficial effects of the present invention are as follows:

[0026] 1) The "track-type mobile" mechanical damper lock is fixed on the top plate between the two dampers. It takes up less space than the traditional bucket-type mechanical lock and counterweight block mechanical lock. During use, it uses a spring steel wire rope for timely reset, with a low failure rate and high safety and reliability.

[0027] 2) The "track-mounted mobile" mechanical damper lock is used for mechanical locking connections between pressure-free dampers, automatic dampers, pedestrian dampers, wind tunnel dampers and other facilities in all tunnels of underground mining. It has more advantages than traditional mechanical locks. The overall weight of the device is about 50 kilograms, which is less than 1 / 3 of the weight of traditional counterweight locks and bucket locks. It is light and exquisite when installed.

[0028] 3) The "track-type mobile" mechanical damper lock does not require external force. It only relies on the mutual restraining tension between the dampers and the elastic potential energy of the travel spring to achieve mutual locking of the dampers. It is safer and more reliable than traditional locking. The locking uses secondary protection to further improve the reliability of the damper interlock. It is suitable for well tunnels of various heights and will not affect the use function of the device due to the height of the tunnel. Especially in well tunnels with low tunnel heights, it occupies less space and is not easily hit by vehicles. It is simple to use and maintain and does not require special personnel for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the track-type movable mechanical damper locking structure;

[0030] Figure 2 (a)-(d) are actual pictures of track-mounted movable mechanical damper locks;

[0031] In the figure: first damper connecting ring 1-1, second damper connecting ring 1-2, first guide rod 2-1, second guide rod 2-2, first chain frame 3-1, second chain frame 3-2, first return spring 4-1, second return spring 4-2, first lock hook 5-1, second lock hook 5-2, guide rail groove 6, first travel spring 7-1, second travel spring 7-2, fixed frame 8. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the following embodiments. However, it should not be understood that the scope of the present invention is limited to the following embodiments. Without departing from the above technical concept of the present invention, various substitutions and modifications based on common technical knowledge and customary means in the field should be included in the scope of protection of the present invention.

[0033] Example 1:

[0034] The track-type movable mechanical damper lock includes a first guide rod 2-1, a second guide rod 2-2, a first interlocking frame 3-1, a second interlocking frame 3-2, a first return spring 4-1, a second return spring 4-2, a first lock hook 5-1, a second lock hook 5-2, a guide rail groove 6, a first travel spring 7-1, a second travel spring 7-2, a fixing frame 8, and a cover plate.

[0035] The first guide rod 2-1 is fixed on the first chain frame 3-1.

[0036] The second guide rod 2-2 is fixed on the second chain frame 3-2.

[0037] The first chain frame 3 - 1 and the second chain frame 3 - 2 are installed on the guide rail groove 6 and can slide on the guide rail groove 6 .

[0038] One end of the first travel spring 7 - 1 is connected to the first guide rod 2 - 1 , and the other end is connected to the first locking hook 5 - 1 .

[0039] One end of the second travel spring 7 - 2 is connected to the second guide rod 2 - 2 , and the other end is connected to the second locking hook 5 - 2 .

[0040] The first locking hook 5 - 1 and the second locking hook 5 - 2 are connected to the fixing frame 8 .

[0041] A first return spring 4 - 1 is installed below the first locking hook 5 - 1 .

[0042] A second return spring 4 - 2 is installed below the second locking hook 5 - 2 .

[0043] The cover plate is used to close the fixing frame 8 .

[0044] The track-type movable mechanical damper is locked and fixed on the middle top plate of damper No. 1 and damper No. 2.

[0045] The first damper connecting ring 1-1 and the second damper connecting ring 1-2 are respectively fixedly mounted on the damper No. 1 and the damper No. 2.

[0046] The first guide rod 2-1 is connected to the first damper connecting ring 1-1 through a steel wire rope and a pulley.

[0047] The second guide rod 2-2 is connected to the second damper connecting ring 1-2 through a steel wire rope and a pulley.

[0048] The No. 1 damper is in the open state, the first locking hook 5-1 hooks the second guide rod 2, locks the second interlocking frame 3-2, and the No. 2 damper is in the closed state.

[0049] The No. 2 damper is in the open state, the second locking hook 5-2 locks the first interlocking frame 3-1, and the No. 1 damper is in the closed state.

[0050] A safety rope is also connected between the first guide rod 2-1 and the second guide rod 2-2.

[0051] The safety rope is used to protect the first locking hook 5-1, the second locking hook 5-2, the first chain frame 3-1, and the second chain frame 3-2.

[0052] When the damper is closed, the first travel spring 7 - 1 automatically pulls back the first guide rod 2 - 1 and the safety rope.

[0053] The second travel spring 7 - 2 automatically pulls back the second guide rod 2 - 2 and the safety rope.

[0054] A through hole is provided at the center of the locking hook 5 and the fixing frame 8. The locking hook 5 and the fixing frame 8 are connected by bolts through the through hole.

[0055] Example 2:

[0056] The track-type movable mechanical damper lock includes a first guide rod 2-1, a second guide rod 2-2, a first interlocking frame 3-1, a second interlocking frame 3-2, a first return spring 4-1, a second return spring 4-2, a first lock hook 5-1, a second lock hook 5-2, a guide rail groove 6, a first travel spring 7-1, a second travel spring 7-2, a fixing frame 8, and a cover plate.

[0057] The first guide rod 2-1 is fixed on the first chain frame 3-1.

[0058] The second guide rod 2-2 is fixed on the second chain frame 3-2.

[0059] The first chain frame 3 - 1 and the second chain frame 3 - 2 are installed on the guide rail groove 6 and can slide on the guide rail groove 6 .

[0060] One end of the first travel spring 7 - 1 is connected to the first guide rod 2 - 1 , and the other end is connected to the first locking hook 5 - 1 .

[0061] One end of the second travel spring 7 - 2 is connected to the second guide rod 2 - 2 , and the other end is connected to the second locking hook 5 - 2 .

[0062] The first locking hook 5 - 1 and the second locking hook 5 - 2 are connected to the fixing frame 8 .

[0063] A first return spring 4 - 1 is installed below the first locking hook 5 - 1 .

[0064] A second return spring 4 - 2 is installed below the second locking hook 5 - 2 .

[0065] The cover plate is used to close the fixing frame 8 .

[0066] Example 3:

[0067] The track-type movable mechanical damper lock has the same technical content as Example 2. Furthermore, the track-type movable mechanical damper lock is fixed on the middle top plate between dampers No. 1 and No. 2.

[0068] Example 4:

[0069] The track-type movable mechanical damper lock has the same technical content as any one of Examples 2-3. Furthermore, a first damper connecting ring 1-1 and a second damper connecting ring 1-2 are respectively installed and fixed on damper No. 1 and damper No. 2.

[0070] The first guide rod 2-1 is connected to the first damper connecting ring 1-1 through a steel wire rope and a pulley.

[0071] The second guide rod 2-2 is connected to the second damper connecting ring 1-2 through a steel wire rope and a pulley.

[0072] Example 5:

[0073] The track-type movable mechanical damper lock has the same technical content as any one of Examples 2-4. Furthermore, when damper No. 1 is opened, it drives the first guide rod 2-1 and the first chain frame 3-1 to move in the track, and the first travel spring 7-1 drives the first lock hook 5-1 to rise and hook the second guide rod 2, thereby locking the second chain frame 3-2 to prevent damper No. 2 from opening.

[0074] Example 6:

[0075] The track-type movable mechanical damper lock has the same technical content as any one of Examples 2-5. Furthermore, when damper No. 1 is closed, the first return spring 4-1 is reset to return to the unlocked state.

[0076] Example 7:

[0077] The track-type movable mechanical damper lock has the same technical content as any one of Examples 2-6. Furthermore, when damper No. 2 is opened, it drives the second guide rod 2-2 and the second chain frame 3-2 to move in the track, and the second travel spring 7-2 drives the second lock hook 5-2 to move, thereby locking the first chain frame 3-1 to prevent damper No. 1 from opening.

[0078] Example 8:

[0079] The track-type movable mechanical damper lock has the same technical content as any one of Examples 2-7. Furthermore, when damper No. 2 is closed, the second return spring 4-2 is reset to return to the unlocked state.

[0080] Example 9:

[0081] The track-type movable mechanical damper lock has the same technical content as any one of Examples 2-8. Furthermore, a safety rope is connected between the first guide rod 2-1 and the second guide rod 2-2.

[0082] The safety rope is used to protect the first locking hook 5-1, the second locking hook 5-2, the first chain frame 3-1, and the second chain frame 3-2.

[0083] Example 10:

[0084] The track-type movable mechanical damper lock has the same technical content as any one of Examples 2-9. Furthermore, when the damper is closed, the first travel spring 7-1 automatically pulls back the first guide rod 2-1 and the safety rope.

[0085] The second travel spring 7 - 2 automatically pulls back the second guide rod 2 - 2 and the safety rope.

[0086] Example 11:

[0087] The track-type movable mechanical damper lock has the same technical content as any one of embodiments 2-10, and further, a through hole is opened at the center of the lock hook 5 and the fixing frame 8. The lock hook 5 and the fixing frame 8 are bolted together through the through hole.

[0088] Example 12:

[0089] The track-type movable mechanical damper locking has the same technical content as any one of Examples 2-11. Furthermore, damper No. 1 is in the open state, the first locking hook 5-1 hooks the second guide rod 2, locks the second chain frame 3-2, and damper No. 2 is in the closed state.

[0090] Example 13:

[0091] The track-type movable mechanical damper locking has the same technical content as any one of Examples 2-12. Furthermore, damper No. 2 is in the open state, the second locking hook 5-2 is actuated to lock the first interlocking frame 3-1, and damper No. 1 is in the closed state.

[0092] Example 14:

[0093] The track-type movable mechanical damper lock comprises a damper connecting ring, a damper wire rope, a guide rod, a travel spring, a fixing frame, a locking frame, a locking hook, a supporting frame, a cover plate, and a guide rail groove.

[0094] One end of the guide rod is connected to the damper wire rope, travel spring, and safety rope, and the other end is fixed to the chain frame. The other end of the travel spring is connected to the lock hook. The center of the lock hook is drilled with a hole and a round hole drilled in the center of the fixed frame and connected to it. A return spring is installed under the lock hook. When the damper No. 1 is opened, the wire rope is driven to pull the guide rod chain frame No. 1 to move within the track. At the same time, the travel spring No. 1 follows the action, driving the lock hook No. 1 to move, thereby locking the No. 2 chain frame to prevent movement. When the No. 2 chain frame is locked, the damper No. 2 cannot be opened. At the same time, to prevent the lock hook and chain frame from being deformed due to excessive force, a secondary protective safety rope is added between the two guide rods. When the lock hook and chain frame are both stressed, the safety rope is also stressed, which protects the chain frame and lock hook from damage. When the damper is closed, the travel spring automatically pulls back the guide rod and wire rope.

[0095] When the first damper is closed, the return spring in the lock pulls the lock hook back to its original position and returns to the unlocked state. Similarly, when the second damper is opened, the lock hook locks the first damper guide rod to ensure that the first damper cannot be opened.

Claims

1. Track-mounted movable mechanical damper lock, characterized by: It comprises a first guide rod (2-1), a second guide rod (2-2), a first interlocking frame (3-1), a second interlocking frame (3-2), a first return spring (4-1), a second return spring (4-2), a first locking hook (5-1), a second locking hook (5-2), a guide rail groove (6), a first travel spring (7-1), a second travel spring (7-2), a fixing frame (8), and a cover plate; The first guide rod (2-1) is fixed on the first chain frame (3-1); The second guide rod (2-2) is fixed on the second chain frame (3-2); The first chain frame (3-1) and the second chain frame (3-2) are installed on the guide rail groove (6) and can slide on the guide rail groove (6); One end of the first travel spring (7-1) is connected to the first guide rod (2-1), and the other end is connected to the first locking hook (5-1); One end of the second travel spring (7-2) is connected to the second guide rod (2-2), and the other end is connected to the second locking hook (5-2); The first locking hook (5-1) and the second locking hook (5-2) are connected to the fixing frame (8); A first return spring (4-1) is installed below the first locking hook (5-1); A second return spring (4-2) is installed below the second locking hook (5-2); The cover plate is used to close the fixing frame (8).

2. The track-mounted movable mechanical damper lock according to claim 1, characterized in that: The track-type movable mechanical damper is locked and fixed on the middle top plate of damper No. 1 and damper No.

2.

3. The track-mounted movable mechanical damper lock according to claim 2, characterized in that: A first damper connecting ring (1-1) and a second damper connecting ring (1-2) are respectively fixedly mounted on damper No. 1 and damper No. 2; The first guide rod (2-1) is connected to the first damper connecting ring (1-1) via a steel wire rope and a pulley; The second guide rod (2-2) is connected to the second damper connecting ring (1-2) via a steel wire rope and a pulley.

4. The track-mounted movable mechanical damper lock according to claim 3, characterized in that: When the No. 1 damper is opened, the first guide rod (2-1) and the first interlocking frame (3-1) are driven to move in the track, and the first travel spring (7-1) drives the first locking hook (5-1) to rise and hook the second guide rod (2), thereby locking the second interlocking frame (3-2) and preventing the No. 2 damper from opening.

5. The track-mounted movable mechanical damper lock according to claim 3, characterized in that: When the No. 1 damper is closed, the first return spring (4-1) is reset and returns to the unlocked state.

6. The track-mounted movable mechanical damper lock according to claim 3, characterized in that: When the No. 2 damper is opened, the second guide rod (2-2) and the second chain frame (3-2) are driven to move in the track, and the second travel spring (7-2) drives the second lock hook (5-2) to move, thereby locking the first chain frame (3-1) to prevent the No. 1 damper from opening.

7. The track-mounted movable mechanical damper lock according to claim 3, characterized in that: When the No. 2 damper is closed, the second return spring (4-2) is reset and returns to the unlocked state.

8. The track-mounted movable mechanical damper lock according to claim 1, characterized in that: A safety rope is also connected between the first guide rod (2-1) and the second guide rod (2-2); The safety rope is used to protect the first locking hook (5-1), the second locking hook (5-2), the first chain frame (3-1), and the second chain frame (3-2).

9. The track-mounted movable mechanical damper lock according to claim 8, characterized in that: When the damper is closed, the first travel spring (7-1) automatically pulls back the first guide rod (2-1) and the safety rope; The second travel spring (7-2) automatically pulls back the second guide rod (2-2) and the safety rope.

10. The track-mounted movable mechanical damper lock according to claim 1, characterized in that: Through holes are provided at the center of the locking hook (5) and the fixing frame (8); the locking hook (5) and the fixing frame (8) are connected by bolts through the through holes.

Images