Safety device for protective door bolt of elevator

Abstract

The utility model discloses a safety device of an elevator protective door bolt, and relates to the technical field of protective door bolts. The protective door comprises a first protective door body and a second protective door body, a first fixing plate and a second fixing plate are installed on one side of the first protective door body and one side of the second protective door body through fixing screws respectively, and trapezoidal plates are fixedly installed on the sides, away from the first protective door body, of the first fixing plate and the second fixing plate respectively. The top of the trapezoidal plate is distributed in a trapezoidal state, a clamping groove is formed in the side, close to the first fixing plate, of the trapezoidal plate, a fixing rod is fixedly arranged on the outer side of the second fixing plate, the outer side of the fixing rod is movably sleeved with a plug pin, the plug pin is movably clamped in the clamping groove, and a connecting block is fixedly installed at the end, away from the fixing rod, of the plug pin. The first protective door and the second protective door can be automatically self-locked, the situation that a worker forgets to use the door bolt due to negligence is avoided, and the safety guarantee of the worker is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective door plugs, in particular to an elevator protective door plug safety device. Background Art

[0002] Elevator safety doors are a type of protective facility used at construction sites. Their primary function is to ensure the safety of construction workers as they get on and off the elevator. They prevent people or objects from accidentally falling into the elevator shaft through physical isolation, while also preventing unauthorized outsiders from entering the elevator area, increasing site safety. Elevator safety doors are secured with door latches.

[0003] The protective door plug in the existing technology usually needs to be operated manually, but since it needs to be operated every day, the staff may forget to use the door plug due to negligence, resulting in the protective door being unable to self-lock and unable to prevent people or objects from accidentally falling into the elevator shaft, which is prone to certain dangers. Utility Model Content

[0004] In order to solve the problem that the staff may forget to use the door plug due to negligence, the purpose of the utility model is to provide an elevator protective door plug safety device.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: an elevator protective door plug safety device, comprising a first protective door and a second protective door, a first fixing plate and a second fixing plate are respectively installed on one side of the first protective door and the second protective door by fixing screws, the first fixing plate and the second fixing plate are fixedly installed on the side away from the first protective door, the top of the trapezoidal plate is distributed in a trapezoidal state, a card slot is provided on the side of the trapezoidal plate close to the first fixing plate, a fixing rod is fixedly provided on the outer side of the second fixing plate, a pin is movably sleeved on the outer side of the fixing rod, the pin is movably clamped in the card slot, and a connecting block is fixedly installed on the end of the pin away from the fixing rod.

[0006] Preferably, an inclined plate is fixedly mounted on the top of the second fixed plate, a positioning plate is movably provided below the inclined plate, and the positioning plate and the inclined plate are fixedly connected via two first springs.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] 1. This application can automatically lock the first and second protective doors, preventing staff from forgetting to use the door latch due to negligence, thereby improving staff safety;

[0009] 2. The present application can block the latch to prevent it from detaching from the slot, thereby improving the stability of the first protective door and the second protective door. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0012] Figure 2 It is a structural schematic diagram of the first fixing plate and the second fixing plate in the present invention.

[0013] Figure 3 It is a structural schematic diagram of the trapezoidal plate in the present invention.

[0014] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0015] Figure 5 For this utility model Figure 3 Enlarged view of point B in the middle.

[0016] In the figure: 1. First protective door; 11. Second protective door; 12. First fixed plate; 13. Second fixed plate; 14. Trapezoidal plate; 15. Slot; 16. Fixed rod; 17. Latch; 18. Connecting block; 2. Inclined plate; 21. Positioning plate; 22. First spring; 3. Positioning rod; 4. Empty slot; 41. Limiting rod; 42. Moving plate; 43. Support plate; 44. Rotating plate; 45. Positioning slot; 46. Second spring; 47. Positioning block; 5. Movable rod; 6. Mounting plate; 7. Stabilizing block; 71. Fixing hole; 8. Stabilizing hole. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example: Figure 1-5As shown, the utility model provides an elevator protective door plug safety device, comprising a first protective door 1 and a second protective door 11, a first fixing plate 12 and a second fixing plate 13 are respectively installed on one side of the first protective door 1 and the second protective door 11 by fixing screws, a trapezoidal plate 14 is fixedly installed on the side of the first fixing plate 12 and the second fixing plate 13 away from the first protective door 1, the top of the trapezoidal plate 14 is distributed in a trapezoidal state, a slot 15 is provided on the side of the trapezoidal plate 14 close to the first fixing plate 12, a fixing rod 16 is fixedly provided on the outer side of the second fixing plate 13, a latch 17 is movably sleeved on the outer side of the fixing rod 16, the latch 17 is movably clamped in the slot 15, and a connecting block 18 is fixedly installed on the end of the latch 17 away from the fixing rod 16.

[0019] The inclined plate 2 is fixedly mounted on the top of the second fixed plate 13 , and a positioning plate 21 is movably provided below the inclined plate 2 . The positioning plate 21 and the inclined plate 2 are fixedly connected via two first springs 22 .

[0020] The top of the positioning plate 21 is fixedly mounted with symmetrically distributed positioning rods 3 , which pass through the inclined plate 2 . The positioning rods 3 are provided to improve the stability of the positioning plate 21 during movement.

[0021] A slot 4 is provided on the top of the first fixed plate 12, a limiting rod 41 is fixedly installed inside the slot 4, a movable plate 42 is movably sleeved on the outer side of the limiting rod 41, a symmetrically distributed support plate 43 is fixedly installed on the top of the movable plate 42, and a rotating plate 44 is movably provided on the opposite sides of the two support plates 43. A positioning slot 45 is provided on the top of the rotating plate 44, and a second spring 46 is fixedly installed on one side of the inner wall of the slot 4, and the other end of the second spring 46 is fixedly connected to the movable plate 42. A positioning block 47 is fixed on the side of the top of the first fixed plate 12 away from the movable plate 42. By setting the movable plate 42, the latch 17 can be aligned with the movable plate 42. The movable plate 42 is blocked to prevent it from detaching from the card slot 15, thereby improving the stability of the first protective door 1 and the second protective door 11; by moving the movable plate 42 toward the positioning block 47, the movable plate 42 drives the support plate 43 and the rotating plate 44 to move. When the movable plate 42 is close to the positioning block 47, the rotating plate 44 is rotated to make the positioning block 47 fit into the positioning slot 45, thereby completing the fixation of the movable plate 42 and preventing the latch 17 from being blocked when rotating; when the movable plate 42 needs to be reused, the rotating plate 44 is rotated to make the positioning block 47 disengage from the positioning slot 45, and then the movable plate 42 is reset by the second spring 46.

[0022] The tops of the two support plates 43 rotate together and are penetrated by a movable rod 5 , which is fixedly penetrated by the rotating plate 44 . The movable rod 5 can support the rotating plate 44 so that it can rotate smoothly.

[0023] A mounting plate 6 is fixedly mounted on the bottom end of the positioning block 47 , and the mounting plate 6 is fixedly connected to the first fixing plate 12 . By providing the mounting plate 6 , the positioning block 47 can be supported and its stability can be improved.

[0024] The top and bottom ends of the first fixing plate 12 and the second fixing plate 13 are fixedly mounted with stabilizing blocks 7, and fixing holes 71 are opened on the outside of the stabilizing blocks 7. Through the provided stabilizing blocks 7 and fixing holes 71, the first fixing plate 12 and the second fixing plate 13 can be installed by fixing screws.

[0025] Stabilizing holes 8 are provided on the outer sides of the two trapezoidal plates 14 , and the two trapezoidal plates 14 can be fixed by a door lock through the provided stabilizing holes 8 .

[0026] Working principle: In actual use, by rotating the latch 17, it is disengaged from the card slot 15, so that the first protective door 1 and the second protective door 11 can be opened. When the first protective door 1 and the second protective door 11 need to be fixed, the first protective door 1 is returned to its original position, and then the second protective door 11 is pushed to drive the second fixing plate 13 to move, and the second fixing plate 13 drives the latch 17 to move. When the latch 17 moves to a certain distance and contacts the trapezoidal part of the trapezoidal plate 14, the latch 17 rotates until it reaches the top of the trapezoidal plate 14, and then the second fixing plate 13 is released. The latch 17 is driven to continue moving. When the latch 17 reaches the top of the slot 15, the latch 17 falls until it enters the slot 15, completing the fixation of the first fixing plate 12 and the second fixing plate 13, thereby fixing the first protective door 1 and the second protective door 11; the inclined plate 2, the positioning plate 21 and the first spring 22 are provided to block the latch 17, thereby limiting the rotation angle of the latch 17, making it convenient for the staff to use the latch 17; and the first spring 22 can reset the positioning plate 21, making it convenient for the next use.

[0027] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. An elevator protective door insert safety device, comprising a first protective door (1) and a second protective door (11), characterized in that: A first fixing plate (12) and a second fixing plate (13) are respectively installed on one side of the first protective door (1) and the second protective door (11) by fixing screws. A trapezoidal plate (14) is fixedly installed on the side of the first fixing plate (12) and the second fixing plate (13) away from the first protective door (1). The top of the trapezoidal plate (14) is distributed in a trapezoidal state. A slot (15) is provided on the side of the trapezoidal plate (14) close to the first fixing plate (12). A fixing rod (16) is fixed on the outer side of the second fixing plate (13). A latch (17) is movably sleeved on the outer side of the fixing rod (16). The latch (17) is movably locked in the latch slot (15). A connecting block (18) is fixed on the end of the latch (17) away from the fixing rod (16).

2. The elevator door plug safety device according to claim 1, characterized in that: An inclined plate (2) is fixedly mounted on the top of the second fixed plate (13), a positioning plate (21) is movably provided below the inclined plate (2), and the positioning plate (21) and the inclined plate (2) are fixedly connected via two first springs (22).

3. The elevator door plug safety device according to claim 2, characterized in that: A symmetrically distributed positioning rod (3) is fixedly mounted on the top end of the positioning plate (21), and the positioning rod (3) passes through the inclined plate (2).

4. The elevator door plug safety device according to claim 1, characterized in that: A slot (4) is provided at the top of the first fixed plate (12), a limiting rod (41) is fixedly installed inside the slot (4), a movable plate (42) is movably sleeved on the outer side of the limiting rod (41), a symmetrically distributed supporting plate (43) is fixedly installed at the top of the movable plate (42), a rotating plate (44) is movably provided on the opposite sides of the two supporting plates (43), a positioning slot (45) is provided at the top of the rotating plate (44), a second spring (46) is fixedly installed on one side of the inner wall of the slot (4), the other end of the second spring (46) is fixedly connected to the movable plate (42), and a positioning block (47) is fixedly provided on the side of the top of the first fixed plate (12) away from the movable plate (42).

5. The elevator door plug safety device according to claim 4, characterized in that: A movable rod (5) is provided on the tops of the two support plates (43) for rotation therewith, and the movable rod (5) is fixedly provided to pass through the rotating plate (44).

6. The elevator door plug safety device according to claim 4, characterized in that: A mounting plate (6) is fixedly mounted on the bottom end of the positioning block (47), and the mounting plate (6) is fixedly connected to the first fixing plate (12).

7. The elevator door plug safety device according to claim 1, characterized in that: Stabilizing blocks (7) are fixedly mounted on the top and bottom ends of the first fixing plate (12) and the second fixing plate (13), and fixing holes (71) are provided on the outer sides of the stabilizing blocks (7).

8. The elevator door plug safety device according to claim 1, characterized in that: The outer sides of the two trapezoidal plates (14) are both provided with stabilizing holes (8).

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