Elevator shutter with double-lock structure

Abstract

The utility model discloses an elevator shutter with a double-lock structure, which relates to the field of elevator installation and comprises an outer frame, an inner frame and a lock group, the outer frame is hinged with the inner frame through a hinge, the lock group is mounted on one side of the outer frame far away from the hinge, the lock group comprises a lock frame, a key lock and a pressing lock, the key lock and the pressing lock are arranged on the lock frame, and a small lock plate rotating along with a lock cylinder is arranged on the key lock. The pressing lock comprises a large locking plate, a torsion spring and a pressing plate rotationally connected to the lock frame, one end of the pressing plate is locked by the small locking plate, the other end of the pressing plate is used for pressing one end of the large locking plate, the other end of the large locking plate is pressed between the inner frame and the outer frame to lock the inner frame, and the large locking plate is rotationally arranged in the lock frame; one end of the torsion spring abuts against the lock frame, and the other end of the torsion spring abuts against the large lock plate, so that the large lock plate has a trend of pushing the pressing plate to move towards the outer side of the lock frame; a plurality of window plates are mounted on the inner frame. A double-lock structure composed of the spring lock and the key lock is adopted, double guarantees are provided during opening, and accidents caused by the fact that the blind window is accidentally opened by children are avoided.

Description

Technical Field

[0001] The utility model relates to the field of elevator installation, and particularly relates to a double-lock structure elevator louver. Background Art

[0002] Ventilation openings are usually provided at the top of the installed elevator. However, a single ventilation opening is not sufficient to avoid the high temperature in the elevator shaft. The high temperature in the elevator shaft will cause the machine room to stop working, thus making the elevator stop running. The elevator louvers on the market are integral fixed louvers, which are difficult to disassemble once installed, making it troublesome for elevator maintenance personnel to check the situation of the elevator shaft. For this reason, we propose a double-lock structure elevator louver that can be opened, which provides convenience for elevator maintenance personnel. At the same time, the double-lock structure improves safety and avoids accidents caused by the louvers being opened by children. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies existing in the prior art, and to provide a double-lock structure elevator louver, which adopts a double-lock structure composed of a spring-loaded lock and a key lock, providing double protection when opening, and avoiding accidents caused by the louvers being accidentally opened by children.

[0004] The purpose of the utility model is achieved by the following technical solutions: This double-lock structure elevator louver includes an outer frame, an inner frame and a lock set. The outer frame and the inner frame are hinged by a hinge. A lock set is installed on the side of the outer frame away from the hinge. The lock set includes a lock frame and a key lock and a pressing lock arranged on the lock frame. A small lock piece that rotates with the lock core is arranged on the key lock. The pressing lock includes a large lock piece, a torsion spring and a pressing plate rotatably connected to the lock frame. The pressing plate rotates by pressing, one end of which is locked by the small lock piece, and the other end of the pressing plate is used to press one end of the large lock piece, so that the other end of the large lock piece presses between the inner frame and the outer frame to lock the inner frame. The large lock piece is rotatably arranged in the lock frame; one end of the torsion spring abuts against the lock frame, and the other end abuts against the large lock piece, so that the large lock piece has a tendency to push the pressing plate to move outward from the lock frame; several window plates are installed on the inner frame.

[0005] As a further technical solution, a lock groove is opened on the side of the outer frame away from the hinge for installing the lock frame of the lock set.

[0006] As a further technical solution, a plurality of window plate connection holes are evenly distributed on the inner frame for the connecting rods on both sides of the window plate to penetrate.

[0007] As a further technical solution, a notch is opened at one end of the large lock piece close to the pressing plate for positioning the pressing plate.

[0008] As a further technical solution, the key hole of the lock core is exposed from the outside of the lock frame for inserting the key, and the pressing plate is also exposed from the outside of the lock frame for pressing.

[0009] The beneficial effects of the present utility model are as follows:

[0010] 1. One side of the inner and outer frames adopts a hinge structure, enabling the shutter to be opened, which is convenient for elevator maintenance personnel to enter or view the elevator shaft;

[0011] 2. It adopts a double-lock structure composed of a spring-loaded lock and a key lock, providing double protection when opening to prevent the shutter from being accidentally opened by children and causing accidents;

[0012] 3. After the lock core is opened, the pressing plate can be unlocked. After pressing the pressing plate, the torsion spring is released, pushing the large lock piece to rotate, automatically opening the lock set, with reliable cooperation and convenient use. Description of the Drawings

[0013] Figure 1 It is a schematic structural diagram of the present utility model.

[0014] Figure 2 It is a schematic assembly structural diagram of the inner frame and the outer frame in the present utility model.

[0015] Figure 3 It is a front view structural diagram of the lock set in the present utility model.

[0016] Figure 4 It is a side view structural diagram of the lock set in the present utility model (in the locked state).

[0017] Figure 5 It is a side view structural diagram of the lock set in the present utility model (in the opened state).

[0018] Figure 6 It is a schematic structural diagram of the window panel in the present utility model.

[0019] Description of the reference numerals: outer frame 1, lock groove 1-1, inner frame 2, window panel connection hole 2-1, window panel 3, connecting rod 3-1, hinge 4, lock set 5, key lock 5-1, small lock piece 5-2, large lock piece 5-3, pressing lock 5-4, lock core 5-5, pressing plate 5-6, torsion spring 5-7, lock frame 5-8, key 5-9, notch 5-10. Detailed Implementation Manner

[0020] The following will introduce the present utility model in detail with reference to the drawings:

[0021] Embodiment: As shown in the attached... Figures 1 to 6 This double-lock structure elevator shutter includes an outer frame 1, a lock groove 1-1, an inner frame 2, a window panel connection hole 2-1, a window panel 3, a connecting rod 3-1, a hinge 4, a lock set 5, a key lock 5-1, a small lock piece 5-2, a large lock piece 5-3, a pressing lock 5-4, a lock core 5-5, a pressing plate 5-6, a torsion spring 5-7, a lock frame 5-8, a key 5-9, and a notch 5-10.

[0022] Reference appendix Figure 1 , the inner frame 2 is installed inside the outer frame 1, and the outer frame 1 and the inner frame 2 are hinged by a hinge 4. On one side of the outer frame 1 away from the hinge 4 (i.e., Figure 1 the right side), a lock groove 1-1 is opened, and a lock set 5 (lock frame 5-8) is installed in the lock groove 1-1.

[0023] As Figure 3 , 4 , as shown in 5, the lock set 5 includes a key lock 5-1, a push lock 5-4 and a lock frame 5-8. Among them, the key lock 5-1 and the push lock 5-4 are both arranged on the lock frame 5-8. The key lock 5-1 has a lock core 5-5, and a small lock piece 5-2 that rotates with the lock core 5-5 is arranged on the outer wall of the lock core 5-5. The push lock 5-4 includes a large lock piece 5-3, a torsion spring 5-7 and a push plate 5-6. The push plate 5-6 is rotatably connected to the lock frame 5-8 and rotates by pressing. In the locked state of the lock core 5-5 (key lock 5-1), the small lock piece 5-2 abuts against the back of the push plate 5-6, so that the lower end of the push plate 5-6 is locked by the small lock piece 5-2 and will not rotate when the push plate 5-6 is pressed, and the large lock piece 5-3 also remains stationary. The large lock piece 5-3 is relatively rotatably arranged in the lock frame 5-8, and the upper end of the push plate 5-6 presses against the rear end of the large lock piece 5-3, so that the front end of the large lock piece 5-3 presses between the inner frame 2 and the outer frame 2 to lock the inner frame 2. One end of the torsion spring 5-7 abuts against the lock frame 5-8, and the other end abuts against the large lock piece 5-3, so that the large lock piece 5-3 has a tendency to push the push plate 5-6 to move outward to the outside of the lock frame 5-8.

[0024] As Figure 2 , 6 , as shown, a plurality of window plate connection holes 2-1 are evenly distributed along the length direction of the inner frame 2. A connecting rod 3-1 is arranged on both sides of the window plate 3. The connecting rod 3-1 can penetrate into the corresponding window plate connection hole 2-1 to complete the installation of the window plate 3 and the inner frame 2.

[0025] Preferably, a notch 5-10 is opened at one end of the large lock piece 5-3 close to the push plate 5-6. In the locked state, the upper end of the push plate 5-6 is positioned in the notch 5-10. As Figure 4 , 5 , as shown, the key hole of the lock core 5-5 is exposed from the outside of the lock frame 5-8 for the key 5-9 to be inserted, and the push plate 5-6 is also exposed from the outside of the lock frame 5-8 for pressing.

[0026] The working process of the present utility model:

[0027] One side of the outer frame 1 is hinged to the inner frame 2 through a hinge 4, so that the shutter can be opened from the side. The small lock catch 5-2 of the key lock 5-1 presses the pressing plate 5-6, making it impossible to press the pressing plate 5-6 inward. At this time, the front end of the pressing plate 5-6 presses the large lock piece 5-3, making the pressing lock 5-4 unusable. Since the pressing lock 5-4 is rotatably connected to the lock frame 5-8 and is provided with a torsion spring 5-7, one end of the torsion spring 5-7 abuts against the left side of the large lock piece 5-3, and the other end of the torsion spring 5-7 is fixed on the inner wall of the lock frame 5-8. The front end of the pressing plate 5-6 presses the right side of the large lock piece 5-3, causing the torsion spring 5-7 to be compressed. When the small lock piece 5-2 rotates with the key 5-9 and releases the pressing plate 5-6, the pressing plate 5-6 can be pressed inward, so as to disengage from the notch 5-10 on the large lock piece 5-3, releasing the compressed torsion spring 5-7, pushing the large lock piece 5-3, and making the end of the large lock piece 5-3 no longer abut against the inner frame 2, that is, the inner frame 2 can be opened relative to the outer frame 1.

[0028] It can be understood that for those skilled in the art, equivalent replacement or change of the technical solution and the inventive concept of the present utility model should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A double-lock structure elevator shutter, characterized in that: The invention comprises an outer frame (1), an inner frame (2) and a lock assembly (5), wherein the outer frame (1) and the inner frame (2) are hingedly connected via a hinge (4), and a lock assembly (5) is installed on a side of the outer frame (1) away from the hinge (4). The lock assembly (5) comprises a lock frame (5-8), a key lock (5-1) and a push lock (5-4) arranged on the lock frame (5-8), wherein the key lock (5-1) is provided with a small lock piece (5-2) rotating with a lock core (5-5), and the push lock (5-4) comprises a large lock piece (5-3), a torsion spring (5-7) and a push plate (5-6) rotatably connected to the lock frame (5-8), and the push plate (5-6) is arranged on the lock frame (5-8). ) is rotated by pressing, and one end of the torsion spring (5-7) is locked by the small locking piece (5-2); the other end of the pressing plate (5-6) is used to press one end of the large locking piece (5-3), so that the other end of the large locking piece (5-3) is pressed between the inner frame (2) and the outer frame (1), and the inner frame (2) is locked; the large locking piece (5-3) is rotatably arranged in the locking frame (5-8); one end of the torsion spring (5-7) is against the locking frame (5-8), and the other end is against the large locking piece (5-3), so that the large locking piece (5-3) has a tendency to push the pressing plate (5-6) away and move toward the outside of the locking frame (5-8); a plurality of window panels (3) are installed on the inner frame (2).

2. The double-lock structure elevator shutter according to claim 1, characterized in that: A lock groove (1-1) is provided on a side of the outer frame (1) away from the hinge (4) for installing a lock frame (5-8) of a lock assembly (5).

3. The double-lock structure elevator shutter according to claim 1, characterized in that: The inner frame (2) is evenly distributed with a plurality of window panel connection holes (2-1) for the connection rods (3-1) on both sides of the window panel (3) to penetrate.

4. The double-lock structure elevator shutter according to claim 1, characterized in that: A notch (5-10) is provided at one end of the large locking piece (5-3) close to the pressing plate (5-6) for positioning the pressing plate (5-6).

5. The double-lock structure elevator shutter according to claim 1, characterized in that: The key hole of the lock core (5-5) is exposed from the outside of the lock frame (5-8) for the key (5-9) to be inserted, and the pressing plate (5-6) is also exposed from the outside of the lock frame (5-8) for pressing.

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