Safety edge structure for elevator hatch

Abstract

The utility model discloses a safety edge structure for an elevator hatch, which comprises a base, an upper cover, an elastic connecting device and a trigger device, the base is arranged at the edge position of the elevator hatch, the upper cover is movably connected with the base through the elastic connecting device, and the upper cover is positioned above the base; the trigger device is installed between the base and the upper cover so that the trigger device can be triggered when the upper cover is pressed down. In this way, when no foreign object exists on the hatch assembly, the upper cover bounces upwards under the action of the elastic connecting device and does not make contact with the triggering device, when people or objects exist on the hatch assembly, the elastic connecting device can be compressed so that the upper cover can be pressed down to make contact with the triggering device, and then the lift car can be controlled to stop working immediately through a system. And people / animals / articles on the hatch assembly are prevented from being jacked up by the lift car, so that a protection effect is achieved. The safety edge is simple in structure, convenient to install, reliable, practical and capable of effectively meeting the installation requirement of the safety protection structure of the elevator hatch.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator equipment, and in particular to a hatch safety protection structure mainly used in household elevators. Background Art

[0002] As people's requirements for quality of life increase, more and more families are starting to install home elevators. There are home elevators on the market that can vertically traverse floors. Usually, hatches need to be opened on the middle floors to enable the car to move up and down. In order to enable the elevator to be on the ground floor and to utilize all the space upstairs when not in operation, a hatch assembly is usually set at the hatch of the floor. However, during the upward movement of the car, if there is a person or object on the hatch assembly at this time, the car will collide with the hatch assembly, which will bring danger, thus posing a safety hazard. Some existing devices that can realize safety protection structures cannot be effectively applied to such elevator hatch structures due to complex structures, inconvenient installation, and difficult adaptation. Utility Model Content

[0003] The utility model aims at the shortcomings of the prior art and provides a safety edge structure for an elevator hatch which has the advantages of simple structure, reasonable design, convenient installation, reliability and practicality and can eliminate potential safety hazards.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a safety edge structure for an elevator hatch, comprising a base, an upper cover, an elastic connecting device and a triggering device, the base being installed at the edge of the elevator hatch, the upper cover being movably connected to the base through the elastic connecting device, and the upper cover being located above the base; the triggering device being installed between the base and the upper cover to form a structure that can be triggered when the upper cover is pressed down.

[0005] Furthermore, the elastic connection device includes a connection column and a spring, and the upper cover and the base are connected to form a relatively movable structure through the connection column. The spring is sleeved on the connection column and respectively abuts against the upper cover and the base.

[0006] Preferably, the connecting column is a stud, the upper end of the stud is connected to the upper cover, and the lower end is connected to the base with a nut.

[0007] Furthermore, a connecting seat is arranged in the base, and a fixing seat is arranged in the upper cover, and the fixing seat and the connecting seat are opposite to each other up and down; the upper end of the stud is connected to the fixing seat, and the lower end is movably connected to the connecting seat.

[0008] Furthermore, a guide sleeve is sleeved on the stud, the upper end of the guide sleeve abuts against the bottom surface of the fixing seat, and the lower end is inserted into the connecting seat to form a structure that can move up and down relative to the connecting seat together with the stud; the spring is sleeved outside the guide sleeve, the lower end of the spring abuts against the connecting seat, and the upper end abuts against the fixing seat to lift the upper cover.

[0009] Furthermore, a mounting opening for inserting a nut is provided on the base in alignment with the connection seat, and a mounting hole for inserting a stud is provided in the upper cover in alignment with the fixing seat.

[0010] Furthermore, the trigger device adopts a micro switch, which is mounted on a mounting seat of the base; the micro switch has a trigger arm extending toward the upper cover, and there is a small gap between the upper cover and the top of the trigger arm when there is no downward pressure.

[0011] Furthermore, a trigger device and an elastic connection device are provided at least near the two ends between the upper cover and the base. If the safety edge is longer, a suitable number of elastic connection devices can be added in the middle according to actual needs.

[0012] Furthermore, fixing ears are respectively provided at both ends of the base for installing the entire safety edge.

[0013] The utility model movably connects the upper cover and the base through an elastic connection device, and installs a trigger device between the two. When there is no foreign object on the hatch assembly, the upper cover will bounce up under the action of the elastic connection device and will not contact the trigger device. When there is a person or object on the hatch assembly, the elastic connection device will be compressed to press the upper cover down and hit the trigger device. Then the system can control the car to stop working immediately to prevent the person / animal / object on the hatch assembly from being lifted up by the car, thereby playing a protective role. The structure of this safety edge is relatively simple, easy to install, reliable and practical, and can effectively adapt to the installation requirements of the elevator hatch safety protection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a top view schematic diagram of the utility model;

[0015] Figure 2 It is a schematic longitudinal section diagram of the utility model;

[0016] Figure 3 for Figure 2 A partial enlarged view of the left portion shown;

[0017] Figure 4 This is the exploded structure diagram of the utility model;

[0018] Figure 5 It is a cross-sectional schematic diagram of the hatch assembly when it is covered on the hatch.

[0019] In the figure, S is a safety edge, 1 is a base, 11 is a connecting seat, 12 is a mounting seat, 13 is a fixing ear, 14 is a mounting opening, 2 is an upper cover, 21 is a fixing seat, 22 is a mounting hole, 3 is an elastic connecting device, 31 is a stud, 32 is a nut, 33 is a spring, 34 is a guide sleeve, 4 is a micro switch, 41 is a trigger arm, 5 is a hatch assembly, 6 is a floor, and 7 is a supporting mechanism. DETAILED DESCRIPTION

[0020] In this embodiment, refer to Figure 1-Figure 5 The safety edge S structure for an elevator hatch includes a base 1, an upper cover 2, an elastic connection device and a trigger device. The base 1 is installed at the edge of the elevator hatch through a supporting mechanism 7. The upper cover 2 is movably connected to the top of the base 1 through an elastic connection device and is slightly lower than the surface of the floor 6. After the hatch assembly 5 is pressed on the upper cover 2, it is flush with the floor 6; the trigger device is installed between the base 1 and the upper cover 2 to form a structure that can be triggered when the upper cover 2 is pressed down.

[0021] The elastic connection device includes a connection column and a spring 33, through which the upper cover 2 and the base 1 are connected to form a relatively movable structure. The spring 33 is sleeved on the connection column and respectively abuts against the upper cover 2 and the base 1.

[0022] The connection column is a stud 31 , the upper end of the stud 31 is connected to the upper cover 2 , and the lower end is connected to the base 1 with a nut 32 .

[0023] A connecting seat 11 is provided in the base 1 , and a fixing seat 21 is provided in the upper cover 2 . The fixing seat 21 is opposite to the connecting seat 11 in vertical direction. The upper end of the stud 31 is connected to the fixing seat 21 , and the lower end is movably connected to the connecting seat 11 .

[0024] A guide sleeve 34 is sleeved on the stud 31, and the upper end of the guide sleeve 34 abuts against the bottom surface of the fixing seat 21, so that the upper cover 2 can be locked, and the lower end of the guide sleeve 24 is inserted into the connecting seat 11 to form a structure that can move up and down together with the stud 31 relative to the connecting seat 11, so that the spring 33 can be compressed; the spring 33 is sleeved outside the guide sleeve 34, and the lower end of the spring 33 abuts against the connecting seat 11, and the upper end abuts against the fixing seat 21 to realize lifting the upper cover 2.

[0025] An installation opening 14 for inserting a nut 32 is provided on the base 1 in alignment with the connection seat 11, and an installation hole 22 for inserting a stud 31 is provided in the upper cover 2 in alignment with the fixing seat 21. The installation opening 14 and the installation hole 22 are provided to facilitate the assembly operation.

[0026] The trigger device adopts a micro switch 4, which is mounted on the mounting seat 12 of the base 1; the micro switch 4 has a trigger arm 41 extending obliquely toward the upper cover 2, and there is a small gap between the upper cover 2 and the top of the trigger arm 41 when there is no downward pressure, and the micro switch 4 will not be triggered.

[0027] A trigger device and an elastic connection device are respectively provided at least near the two ends between the upper cover 2 and the base 1. If the safety edge S is long, an appropriate number of elastic connection devices can be added in the middle according to actual needs. In other words, there can be at least two connection points between the upper cover 2 and the base 1, two of which are near the two ends, and the micro switch 4 is located on the inner side of the connection points at the two ends.

[0028] Fixing ears 13 are respectively provided at both ends of the base 1 for mounting the entire safety edge S on the supporting mechanism 7 .

[0029] When the hatch assembly 5 covers the hatch (the car is located on the ground floor and does not need to be used at this time), any position thereof is subjected to a vertical downward force F, which acts on the upper cover 2 through the hatch assembly 5, causing the upper cover 2 to be subjected to a corresponding downward force and move downward. When the force F exceeds the set value (for example, >50N), the upper cover 2 will contact the trigger arm 2, causing the micro switch 4 to be triggered, and the signal is transmitted to the control system of the elevator, which controls the car to stop working to protect people / animals / objects on the hatch assembly 5 from being lifted up by the car. When there is no foreign object on the hatch assembly 5, the upper cover 2 will not be subjected to downward pressure, and will be lifted up by the action of the spring 33. The trigger arm 41 will not contact the upper cover 2, and the micro switch 4 will not be triggered, so the elevator can work normally. After being pressed down to the limit position, the upper cover 2 will not be completely pressed on the micro switch 4 to avoid damaging the micro switch 4.

[0030] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not limit the scope of implementation of the present invention. That is, all equivalent changes and modifications made within the scope of this application should still fall within the scope of the present invention.

Claims

1. A safety edge structure for an elevator hatch, characterized in that: It includes a base, an upper cover, an elastic connecting device and a triggering device. The base is installed at the edge of the elevator hatch. The upper cover is movably connected to the base through the elastic connecting device, and the upper cover is located above the base. The triggering device is installed between the base and the upper cover to form a structure that can be triggered when the upper cover is pressed down.

2. The safety edge structure for an elevator hatch according to claim 1, characterized in that: The elastic connection device includes a connection column and a spring. The upper cover and the base are connected to form a relatively movable structure through the connection column. The spring is sleeved on the connection column and respectively abuts against the upper cover and the base.

3. The safety edge structure for an elevator hatch according to claim 2, characterized in that: The connecting column adopts a stud, the upper end of the stud is connected to the upper cover, and the lower end is connected to the base with a nut.

4. The safety edge structure for an elevator hatch according to claim 3, characterized in that: A connecting seat is arranged in the base, a fixing seat is arranged in the upper cover, and the fixing seat and the connecting seat are opposite to each other up and down; the upper end of the stud is connected to the fixing seat, and the lower end is movably connected to the connecting seat.

5. The safety edge structure for an elevator hatch according to claim 4, characterized in that: A guide sleeve is sleeved on the stud, the upper end of the guide sleeve abuts against the bottom surface of the fixing seat, and the lower end is inserted into the connecting seat to form a structure that can move up and down relative to the connecting seat together with the stud; a spring is sleeved outside the guide sleeve, the lower end of the spring abuts against the connecting seat, and the upper end abuts against the fixing seat to lift the upper cover.

6. The safety edge structure for an elevator hatch according to claim 4, characterized in that: An installation opening for inserting a nut is arranged on the base in alignment with the connection seat, and an installation hole for inserting a stud is arranged in the upper cover in alignment with the fixing seat.

7. The safety edge structure for an elevator hatch according to claim 1, characterized in that: The trigger device adopts a micro switch, which is installed on the mounting seat of the base; the micro switch has a trigger arm extending toward the upper cover, and there is a small gap between the upper cover and the top of the trigger arm when there is no downward pressure.

8. The safety edge structure for an elevator hatch according to claim 1, characterized in that: A trigger device and an elastic connection device are respectively arranged between the upper cover and the base at least near the two ends.

9. The safety edge structure for an elevator hatch according to claim 1, characterized in that: Fixing ears are respectively arranged at both ends of the base.

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