Turntable lock device for safety cabinet door
By employing a rotary lock device with a double-locking mechanism on the safety cabinet door, the cabinet door achieves double locking, avoiding the need for spring mechanisms, improving safety and service life, and solving the safety and lifespan problems of existing mechanical locks.
Patent Information
- Application Number
- CN202422084804.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-08-27
AI Technical Summary
Existing safety cabinets have poor mechanical locks, are prone to jamming, and have a short service life.
It adopts a double-locking method, which combines a key lock mechanism and a rotary lock mechanism to lock the side and top or bottom of the cabinet door at the same time. It uses pure mechanical transmission to avoid the use of spring mechanisms and improve the service life of the lock.
This significantly improves the security and lifespan of cabinet doors, solving the security and lifespan issues of existing mechanical locks.
Smart Images
Figure CN223707373U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cabinet door lock technology, specifically a rotary lock device for a safety cabinet door. Background Technology
[0002] Safety cabinets are widely used in the chemical industry to store various hazardous materials. Common types of safety cabinet doors include mechanical locks and electronic locks. From the perspective of cost and lifespan, mechanical locks are more cost-effective. A typical mechanical lock involves inserting a key and turning it to activate the lock cylinder, thus locking and unlocking. However, these locks generally only lock one side of the door, resulting in lower security. Furthermore, the internal spring mechanism can become stuck after a period of use, requiring frequent maintenance and replacement, and may even jam. Summary of the Invention
[0003] To address the aforementioned technical problems, this utility model provides a rotary lock device for safety cabinet doors, which can improve the safety and service life of the cabinet doors.
[0004] The technical solution is as follows: A rotary lock device for a safety cabinet door, characterized in that it includes a key lock mechanism, a rotary lock mechanism, a horizontal linkage plate, and a vertical lock rod. The key lock mechanism includes a first lock body fixed to the cabinet door, with a rotatable lock plate installed at one end inside the first lock body. The rotary lock mechanism includes a second lock body fixed to the cabinet door, with a rotary plate connected to one end outside the second lock body and a rotatable lock lever connected to one end inside. The horizontal linkage plate is laterally movably installed on the cabinet door, and a first vertical oblong hole and a second vertical oblong hole are provided on the horizontal linkage plate. The first vertical mounting bar is installed at one end of the hole, and a horizontal locking shaft is installed on the vertical mounting bar. The lock lever is provided with a first lever that inserts into the first vertical waist-shaped hole. When the lock lever rotates, the first lever drives the horizontal linkage plate to move laterally. When the key lock mechanism is in the closed state, the lock plate abuts against the vertical mounting bar. One end of the vertical locking rod is hinged to a rotating plate rotatably mounted on the cabinet door, and the other end is provided with a longitudinal locking shaft. When the rotating plate rotates, it drives the vertical locking rod to move longitudinally. The rotating plate is provided with a second lever that inserts into the second vertical waist-shaped hole.
[0005] A further feature is that the horizontal locking shaft is installed at both the upper and lower ends of the vertical mounting strip;
[0006] The rotating plate is a semi-circular plate, and the point near the center of the semi-circular plate is the point of rotational connection with the cabinet door. The second lever is located at the upper middle position of the semi-circular plate. The vertical locking rod includes an upward locking rod and a downward locking rod. The upper end of the downward locking rod is directly hinged to one side of the semi-circular plate, and the lower end is fixed with the longitudinal locking shaft. The lower end of the upward locking rod is fixedly connected to one end of the misaligned connecting piece, and the other end of the misaligned connecting piece is hinged to the other side of the semi-circular plate.
[0007] By adopting this utility model, the cabinet door can be locked from the side and top or bottom simultaneously using a double-lock method, which greatly improves the security of the cabinet door. Moreover, the door is opened and closed by rotating a turntable, without a spring mechanism, and is purely mechanically driven, which improves the service life of the lock and prevents jamming. Attached Figure Description
[0008] Figure 1 This is a frontal perspective view of the present utility model;
[0009] Figure 2 This is a perspective view of the back of the present invention;
[0010] Figure 3 This is a front view of the present utility model;
[0011] Figure 4 This is a rear view of the present invention. Detailed Implementation
[0012] See Figures 1 to 4As shown, a rotary lock device for a safety cabinet door includes a key lock mechanism 1, a rotary lock mechanism 2, a horizontal linkage plate 3, and a vertical lock bar. The key lock mechanism 1 includes a first lock body 1-1 fixed to the cabinet door (not shown in the figure), with a rotatable lock plate 1-2 installed at one end of the interior of the first lock body 1-1. The rotary lock mechanism 2 includes a second lock body 2-1 fixed to the cabinet door, with a rotary plate 2-2 connected to one end of the exterior of the second lock body 2-1 and a rotatable lock lever 2-3 connected to one end of the interior. The lock lever 2-3 is located in front of the horizontal linkage plate. The horizontal linkage plate 3 is movably mounted laterally on the cabinet door, and a limiting mechanism on the cabinet door restricts its movement to only the lateral direction. The horizontal linkage plate 3 has a first vertical oblong hole 3-1 and a second vertical oblong hole 3-2. The vertical mounting bar 3-3 is installed at one end of the shaped hole 3-2. The first vertical waist-shaped hole 3-1 and the second vertical waist-shaped hole 3-2 are staggered by a certain distance. The upper and lower ends of the vertical mounting bar 3-3 are equipped with horizontal locking shafts 3-4. The lock lever 2-3 is provided with a first lever 2-4 that inserts into the first vertical waist-shaped hole 3-1. When the lock lever 2-3 rotates, the first lever 2-4 drives the horizontal linkage plate 3 to move horizontally. When the key lock mechanism 1 is in the closed state, the lock plate 1-2 abuts against the vertical mounting bar 3-3. One end of the vertical locking rod is hinged to the rotating plate 5 that is rotatably installed on the cabinet door, and the other end is equipped with a longitudinal locking shaft 4. When the rotating plate 5 rotates, it drives the vertical locking rod to move longitudinally. The rotating plate 5 is provided with a second lever 5-1 that inserts into the second vertical waist-shaped hole 3-2.
[0013] Specifically, the rotating plate 5 is a semi-circular plate located on the back of the horizontal linkage plate 3. The semi-circular plate is connected to the cabinet door for rotation near the center. The second lever 5-1 is located at the upper middle position of the semi-circular plate. The vertical locking rod includes an upward vertical locking rod 6 and a downward vertical locking rod 7. The upper end of the downward vertical locking rod 7 is directly hinged to one side of the semi-circular plate, and the lower end is fixed with a longitudinal locking shaft 4. The lower end of the upward vertical locking rod 6 is fixedly connected to one end of the misaligned connecting piece 8. The other end of the misaligned connecting piece 8 is hinged to the other side of the semi-circular plate. The misaligned connecting piece 8 is in the form of a folded plate.
[0014] The unlocking process is as follows: First, open the key lock mechanism 1, so that the lock plate 1-2 rotates and no longer blocks the vertical mounting strip 3-3. Then, rotate the turntable 2-2, so that the lock lever 2-3 swings. The first lever 2-4 swings along with it and can only swing within the first vertical oblong hole 3-1. This will cause the horizontal linkage plate 3 to move laterally, and the vertical mounting strip 3-3 will move laterally as well. This will cause the horizontal lock shaft 3-4 to retract, thus opening the side of the cabinet door. At the same time, when the horizontal linkage plate 3 moves laterally, the position of the second vertical oblong hole 3-2 changes. The second lever 5-1 drives the rotating plate 5 to rotate, pulling the vertical upward lock rod 6 and the vertical downward lock rod 7 to make the vertical lock shaft 4 retract vertically, thus opening the top and bottom of the cabinet door. Finally, the entire cabinet door is opened.
[0015] When locking is required, first rotate the turntable in the opposite direction to reset and extend the longitudinal locking shaft 4 and the transverse locking shaft 3-4. Finally, lock the key lock mechanism 1 and let the lock plate 1-2 abut against the vertical mounting strip 3-3.
Claims
1. A rotary lock device for a safety cabinet door, characterized in that, It includes a key lock mechanism, a rotary lock mechanism, a horizontal linkage plate, and a vertical lock bar. The key lock mechanism includes a first lock body fixed to the cabinet door, with a rotatable lock plate installed at one end inside the first lock body. The rotary lock mechanism includes a second lock body fixed to the cabinet door, with a rotary dial connected to one end outside and a rotatable lock lever connected to one end inside. The horizontal linkage plate is horizontally movably installed on the cabinet door, and has a first vertical oblong hole and a second vertical oblong hole, with a vertical mounting strip installed at one end. A horizontal locking shaft is installed on the vertical mounting strip. A first lever is provided on the locking plate and inserted into the first vertical oblong hole. When the locking plate rotates, the first lever drives the horizontal linkage plate to move laterally. When the key lock mechanism is in the closed state, the locking plate abuts against the vertical mounting strip. One end of the vertical locking rod is hinged to a rotating plate rotatably mounted on the cabinet door, and the other end is equipped with a longitudinal locking shaft. When the rotating plate rotates, it drives the vertical locking rod to move longitudinally. A second lever is provided on the rotating plate and inserted into the second vertical oblong hole.
2. The rotary lock device for a safety cabinet door according to claim 1, characterized in that, The horizontal locking shaft is installed at both the upper and lower ends of the vertical mounting strip.
3. The rotary lock device for a safety cabinet door according to claim 1, characterized in that, The rotating plate is a semi-circular plate, and the point near the center of the semi-circular plate is the point of rotational connection with the cabinet door. The second lever is located at the upper middle position of the semi-circular plate. The vertical locking rod includes an upward locking rod and a downward locking rod. The upper end of the downward locking rod is directly hinged to one side of the semi-circular plate, and the lower end is fixed with the longitudinal locking shaft. The lower end of the upward locking rod is fixedly connected to one end of the misaligned connecting piece, and the other end of the misaligned connecting piece is hinged to the other side of the semi-circular plate.