Mechanical locking device for preventing accidental movement of elevator car door

By designing a mechanical locking device to prevent accidental movement of the elevator car door, a compression ball and spring structure are used to lock and unlock the car door, solving the problem of accidental locking of the elevator car door and ensuring that passengers can open it themselves in case of an accident, reducing the time they are trapped.

CN223852022UActive Publication Date: 2026-01-30FOSHAN YONGDA ELEVATOR PARTS CO LTD
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Patent Information

Application Number
CN202520538604.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-01-30
Estimated Expiration
2035-03-25

AI Technical Summary

Technical Problem

The existing mechanical locking structure of elevator car doors is prone to locking when subjected to unexpected vibrations, making it impossible to open from the inside, which increases the time people are trapped, especially at night when there is no cell phone signal.

Method used

An elevator car door anti-accidental movement mechanical locking device was designed, including a mechanical locking device body, a locking block, an insertion block, a moving sleeve, a fixed rod, a sleeve plate, and a push block. The insertion block is driven by the impact of the squeezing ball on the moving sleeve to squeeze the locking block. The locking and unlocking of the car door is achieved by the use of spring and sliding groove structure.

Benefits of technology

In case of an emergency, it can effectively lock the elevator car door, ensuring that passengers can unlock and open it from the inside, reducing the occurrence of entrapment incidents.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223852022U_ABST
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Abstract

The utility model provides a mechanical locking device for preventing an elevator car door from moving accidentally, and belongs to the technical field of mechanical locking. The mechanical locking device for preventing the elevator car door from moving accidentally comprises the elevator car door, the elevator car door comprises a mechanical locking device body, a clamping block, an inserting block, a moving sleeve, a first sliding groove, a fixing rod, a sleeve piece and a pushing block, and when the elevator car door encounters an accident, an extrusion ball collides with the moving sleeve; when unlocking needs to be carried out, only a push block needs to be pushed forwards, so that the push block drives the insertion block to slowly extrude a first spring to move rightwards through the angle of the left side of a sleeve piece, the diameter of the sleeve piece is the same as that of the clamping block, and therefore unlocking can be carried out on the elevator car door. Therefore, the inserting block penetrates through the clamping block when penetrating through the sleeve piece, so that the car door is opened after being separated from clamping, the car door can be opened internally when being mechanically locked accidentally, and the occurrence of trapped events is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical locking technical field, specifically, relate to a kind of elevator car door anti accidental movement mechanical locking device. BACKGROUND

[0002] With the development of the times, many high-rise buildings will be installed elevator, so as to facilitate the daily travel of people more convenient, and elevator car door is one of elevator structures, that is, the door seen in the elevator when the elevator is closed, with hall door (or called floor door), that is, the door seen when calling elevator outside.

[0003] And the mechanical locking structure of the existing elevator car door can cause the car door to be locked when being subjected to accidental vibration, so that it cannot be opened from the inside, and elevator safety personnel are needed to rescue the trapped personnel, and when trapped in the elevator at night with no signal on the mobile phone, the trapped time is increased, therefore, we make improvements, and propose a kind of elevator car door anti accidental movement mechanical locking device. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides an elevator car door anti accidental movement mechanical locking device.

[0005] The utility model is realized as follows:

[0006] An elevator car door anti accidental movement mechanical locking device, comprising an elevator car door, the elevator car door comprises a mechanical locking device main body, a clamping block, an inserted block, a moving sleeve, a first sliding groove, a fixed rod, a sleeve piece and a push block, the mechanical locking device main body is arranged on the inner side of the elevator car door, the clamping block is arranged on the inner side of the elevator car door, the inserted block is arranged in the interior of the mechanical locking device main body, the moving sleeve is arranged on the side surface of the mechanical locking device main body, the first sliding groove is arranged in the interior of the elevator car door, the fixed rod is arranged in the interior of the clamping block, the sleeve piece is arranged on the surface of the fixed rod, and the push block is arranged on the surface of the elevator car door.

[0007] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0008] Further, the mechanical locking device main body comprises a placing groove and a moving groove, the inner side of the mechanical locking device main body is provided with the placing groove, and the interior of the mechanical locking device main body is provided with the moving groove.

[0009] The beneficial effects of the above further scheme are that the inserted block is clamped on the surface of the clamping block through the moving groove and the placing groove.

[0010] Further, the clamping block comprises a clamping groove, and the inner side of the clamping block is provided with the clamping groove.

[0011] The beneficial effect of the above further scheme is that the sleeve piece can be clamped into the clamping groove by the clamping groove to overlap the clamping block.

[0012] Further, the insertion block comprises a moving block and a first spring, the surface of the insertion block is fixedly connected with the moving block, and the outer side of the moving block is fixedly connected with the first spring.

[0013] The beneficial effect of the above further scheme is that the insertion block and the moving block can extrude the first spring, so as to facilitate the extrusion of the insertion block clamped in the clamping block.

[0014] Further, the moving sleeve comprises an auxiliary block and a second spring, the outer side of the moving sleeve is fixedly connected with the auxiliary block, and the side surface of the auxiliary block is fixedly connected with the second spring.

[0015] The beneficial effect of the above further scheme is that the moving sleeve drives the auxiliary block to move, and the auxiliary block can extrude the second spring.

[0016] Further, the first sliding groove comprises a second sliding groove and an extrusion ball, the outer side of the first sliding groove is provided with the second sliding groove, and the inside of the first sliding groove is fixedly installed with the extrusion ball.

[0017] The beneficial effect of the above further scheme is that the moving sleeve drives the auxiliary block to move, and the auxiliary block can extrude the second spring.

[0018] Further, the sleeve piece comprises a sliding groove, the inside of the sleeve piece is provided with the sliding groove, and the diameter of the sleeve piece is the same as that of the clamping block.

[0019] The beneficial effect of the above further scheme is that the sleeve piece and the sliding groove can slide on the surface of the fixed rod.

[0020] Further, the push block and the moving sleeve are connected with each other.

[0021] The beneficial effect of the above further scheme is that the push block drives the moving sleeve to move, so as to facilitate the moving sleeve to drive the mechanical locking device body to move.

[0022] The utility model discloses an advantageous effect is: the utility model discloses a kind of elevator car door accidental movement mechanical locking device, when elevator car door meets accident, will cause extrusion ball to hit moving sleeve, moving sleeve drives mechanical locking device main part and the surface of extrusion block of inserting block, to cause elevator car door to be engaged, when it needs to be unlocked, only need to push forward push block, to make push block drive inserting block pass through the angle of sleeve piece left side slowly extrude first spring and move to right, and the diameter of sleeve piece is same with the diameter of engagement block, to make inserting block pass through engagement block when passing through sleeve piece, to open car door by disengaging engagement, it can be opened inside when accidental mechanical locking, reduce the event of being trapped. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be simply introduced to the drawing needed to be used in the embodiment, it should be understood that the following drawings only show some embodiments of the utility model, therefore should not be regarded as the limitation to the scope, for ordinary skilled person in the art, under the premise of not paying creative labor, other related drawings can also be obtained according to these drawings.

[0024] Figure 1 The utility model provides the three-dimensional structure schematic diagram of elevator car door accidental movement mechanical locking device;

[0025] Figure 2 The utility model provides the cross section structure schematic diagram of elevator car door;

[0026] Figure 3 The utility model provides the cross section structure schematic diagram of mechanical locking device main part;

[0027] Figure 4 The utility model provides the cross section structure schematic diagram of engagement block.

[0028] In the drawing: 100, elevator car door;200, mechanical locking device main part;2001, placement groove;2002, moving groove;300, engagement block;3001, engagement groove;400, inserting block;4001, moving block;4002, first spring;500, moving sleeve;5001, auxiliary block;5002, second spring;600, first sliding groove;6001, second sliding groove;6002, extrusion ball;700, fixed rod;800, sleeve piece;8001, sliding groove;900, push block. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] Embodiments

[0032] Please refer to Figures 1-4 The present application provides a technical scheme: an elevator car door accidental movement prevention mechanical locking device, comprising an elevator car door 100.

[0033] Please refer to Figures 1-4 , the elevator car door 100, the elevator car door 100 comprises a mechanical locking device body 200, a clamping block 300, an inserted block 400, a moving sleeve 500, a first sliding groove 600, a fixed rod 700, a sleeve piece 800 and a push block 900, the mechanical locking device body 200 is arranged on the inner side of the elevator car door 100, the clamping block 300 is arranged on the inner side of the elevator car door 100, the inserted block 400 is arranged in the interior of the mechanical locking device body 200, the moving sleeve 500 is arranged on the side surface of the mechanical locking device body 200, the first sliding groove 600 is arranged in the interior of the elevator car door 100, the fixed rod 700 is arranged in the interior of the clamping block 300, the sleeve piece 800 is arranged on the surface of the fixed rod 700, and the push block 900 is arranged on the surface of the elevator car door 100.

[0034] Based on the above technical scheme, the present application can also be improved as follows.

[0035] As one of the embodiments of the present application, further, the mechanical locking device body 200 comprises a placing groove 2001 and a moving groove 2002, the inner side of the mechanical locking device body 200 is provided with the placing groove 2001, and the interior of the mechanical locking device body 200 is provided with the moving groove 2002, and the inserted block 400 is clamped on the surface of the clamping block 300 through the moving groove 2002 and the placing groove 2001.

[0036] As an embodiment of the utility model, further, the clamping block 300 includes a clamping groove 3001, the inner side of the clamping block 300 is provided with the clamping groove 3001, the clamping groove 3001 helps the sleeve piece 800 to be clamped into the inside of the clamping groove 3001 so that the sleeve piece 800 overlaps the clamping block 300.

[0037] As an embodiment of the utility model, further, the inserting block 400 includes a moving block 4001 and a first spring 4002, the surface of the inserting block 400 is fixedly connected with the moving block 4001, the outer side of the moving block 4001 is fixedly connected with the first spring 4002, the inserting block 400 and the moving block 4001 can extrude the first spring 4002, so as to facilitate extruding the inserting block 400 to be clamped in the clamping block 300.

[0038] As an embodiment of the utility model, further, the moving sleeve 500 includes an auxiliary block 5001 and a second spring 5002, the outer side of the moving sleeve 500 is fixedly connected with the auxiliary block 5001, the side surface of the auxiliary block 5001 is fixedly connected with the second spring 5002, the moving sleeve 500 drives the auxiliary block 5001 to move, and the auxiliary block 5001 can extrude the second spring 5002.

[0039] As an embodiment of the utility model, further, the first sliding groove 600 includes a second sliding groove 6001 and an extrusion ball 6002, the outer side of the first sliding groove 600 is provided with the second sliding groove 6001, and the inside of the first sliding groove 600 is fixedly installed with the extrusion ball 6002, the second sliding groove 6001 and the extrusion ball 6002 make the moving sleeve 500 drive the auxiliary block 5001 to slide in the second sliding groove 6001 when the moving sleeve 500 is extruded by the extrusion ball 6002.

[0040] As an embodiment of the utility model, further, the sleeve piece 800 includes a sliding groove 8001, the inside of the sleeve piece 800 is provided with the sliding groove 8001, the diameter of the sleeve piece 800 is same with the diameter of the clamping block 300, and the sleeve piece 800 and the sliding groove 8001 can slide on the surface of the fixed rod 700.

[0041] As an embodiment of the utility model, further, the push block 900 is connected with the moving sleeve 500, the push block 900 drives the moving sleeve 500 to move, so as to facilitate the moving sleeve 500 driving the mechanical locking device main body 200 to move.

[0042] Specifically, the working principle of the elevator car door accidental movement mechanical locking device is as follows: when the elevator car door 100 is accidentally pressed, the pressing ball 6002 hits the moving sleeve 500, the moving sleeve 500 drives the mechanical locking device main body 200 and the inserted block 400 to press the surface of the clamping block 300, the inclined angle at the bottom end of the inserted block 400 presses the inserted block 400 to move upward, the inserted block 400 moves upward and drives the moving block 4001 to press the first spring 4002, and when the pressing is lost, the elastic force of the first spring 4002 presses the moving block 4001 and the inserted block 400 to be inserted between the clamping block 300 and the sleeve piece 800, so that the elevator car door 100 is clamped, and when unlocking is needed, the push block 900 is only needed to be pushed forward, so that the push block 900 pushes the moving sleeve 500 and the mechanical locking device main body 200 to move to the left, the inserted block 400 presses the sleeve piece 800 to move to the left, the inserted block 400 is pressed by the angle on the side of the sleeve piece 800, so as to pass through the sleeve piece 800, when the inserted block 400 is clamped on the left side of the sleeve piece 800, the push block 900 is pulled, so that the inserted block 400 pushes the sleeve piece 800 into the inside of the clamping block 300, the inserted block 400 slowly presses the first spring 4002 to move to the right through the angle on the left side of the sleeve piece 800, the diameter of the sleeve piece 800 is the same as the diameter of the clamping block 300, so that the inserted block 400 passes through the sleeve piece 800 and passes through the clamping block 300, so as to be separated from the clamping and open the car door, so that the accidental mechanical locking can be opened inside, and the event of being trapped is reduced.

[0043] It should be noted that the pressing ball 6002 needs to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0044] The pressing ball 6002 and its principle are clear to those skilled in the art, and will not be described in detail here.

[0045] The above only describes preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be changed and varied. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An elevator car door accidental movement prevention mechanical locking device, characterized in that, The utility model relates to an elevator car door (100) including a mechanical locking device main body (200), a clamping block (300), an inserted block (400), a moving sleeve (500), a first sliding groove (600), a fixed rod (700), a sleeve piece (800) and a push block (900), the mechanical locking device main body (200) is arranged at the inner side of the elevator car door (100), the clamping block (300) is arranged at the inner side of the elevator car door (100), the inserted block (400) is arranged in the inside of the mechanical locking device main body (200), the moving sleeve (500) is arranged at the side of the mechanical locking device main body (200), the first sliding groove (600) is arranged in the inside of the elevator car door (100), the fixed rod (700) is arranged in the inside of the clamping block (300), the sleeve piece (800) is arranged on the surface of the fixed rod (700), and the push block (900) is arranged on the surface of the elevator car door (100). The mechanical locking device main body (200) includes a placing groove (2001) and a moving groove (2002), the inner side of the mechanical locking device main body (200) is provided with the placing groove (2001), and the inside of the mechanical locking device main body (200) is provided with the moving groove (2002).

2. The elevator car door accidental movement prevention mechanical locking device according to claim 1, characterized in that, The clamping block (300) includes a clamping groove (3001), and the inner side of the clamping block (300) is provided with the clamping groove (3001).

3. The elevator car door accidental movement prevention mechanical locking device according to claim 1, characterized in that, The inserted block (400) includes a moving block (4001) and a first spring (4002), the surface of the inserted block (400) is fixedly connected with the moving block (4001), and the outer side of the moving block (4001) is fixedly connected with the first spring (4002).

4. The elevator car door accidental movement prevention mechanical locking device according to claim 1, characterized in that, The moving sleeve (500) includes an auxiliary block (5001) and a second spring (5002), the outer side of the moving sleeve (500) is fixedly connected with the auxiliary block (5001), and the side surface of the auxiliary block (5001) is fixedly connected with the second spring (5002).

5. The elevator car door accidental movement prevention mechanical locking device according to claim 1, characterized in that, The first sliding groove (600) includes a second sliding groove (6001) and a pressing ball (6002), the outer side of the first sliding groove (600) is provided with the second sliding groove (6001), and the inside of the first sliding groove (600) is fixedly installed with the pressing ball (6002).

6. The elevator car door accidental movement prevention mechanical locking device according to claim 1, characterized in that, The sleeve piece (800) includes a sliding groove (8001), and the inside of the sleeve piece (800) is provided with the sliding groove (8001); the diameter of the sleeve piece (800) is same with the diameter of the clamping block (300).

7. The elevator car door accidental movement prevention mechanical locking device according to claim 1, characterized in that, The push block (900) is connected with the moving sleeve (500).

8. The elevator car door accidental movement prevention mechanical locking device according to claim 1, characterized in that, ​