An anti-pinch device for elevator doors

Abstract

This application discloses an elevator door anti-pinch device, belonging to the field of elevator safety facility technology. It includes: an elevator door body, a pair of elevator door bodies symmetrically arranged; a trigger plate, the trigger plate being slidably installed inside one of the elevator door bodies, with the outer side of the trigger plate located outside the other elevator door body; an elastic component, the elastic component including a return spring for elastically supporting the trigger plate; a transmission component, the transmission component including a fixed wheel contacting the inner center of the trigger plate; and a touch switch, the touch switch located on the other side of the fixed wheel. The trigger plate is supported by the return spring and telescopic column in the elastic component, and the trigger plate covers the entire vertical door gap, with no blind spots, effectively preventing hand pinching. Movement of the trigger plate causes the transmission component to drive the fixed wheel to rotate around the fixed column, pressing the touch switch, thereby achieving the anti-pinch function.

Description

Technical Field

[0001] This application belongs to the field of elevator safety facilities technology, and in particular relates to an elevator door anti-pinch device. Background Technology

[0002] An elevator is a transportation tool typically used to vertically transport people or goods in multi-story buildings. An elevator consists of components such as a motor, car, counterweight, wire ropes, and guide rails. The motor drives the car to move up and down, safely transporting people or goods from the first floor to other floors. Elevators have become an essential part of modern urban life and are widely used in high-rise buildings, shopping malls, hotels, and other similar locations. Furthermore, to ensure travel safety, elevators should be regularly maintained and inspected.

[0003] Currently, elevators mainly use light curtains and safety touch panels to prevent pinching. Firstly, light curtains are expensive to install and have blind spots. Secondly, safety touch panels are generally installed at the bottom of the elevator door, which limits the protection range. As a result, the upper part of the door gap, especially the gap between two doors, is still a high-risk area for pinching hands, which is especially threatening to children's fingers. Utility Model Content

[0004] To address the technical problem that the installation of safety touch panels results in the upper part of the door gap, especially the gap between two doors, remaining a high-risk area for pinching fingers and posing the greatest threat to children's fingers, this utility model provides an elevator door anti-pinch device.

[0005] In a first aspect, this application provides an elevator door anti-pinch device, including an elevator door body, a pair of said elevator door bodies being symmetrically arranged, and further comprising:

[0006] A trigger plate, which is slidably mounted inside one of the elevator door bodies, with the outer side of the trigger plate located outside one of the elevator door bodies;

[0007] An elastic component, the elastic component including a return spring for elastically supporting the trigger plate;

[0008] A transmission assembly, the transmission assembly including a fixed wheel that contacts the center of the inner side of the trigger plate;

[0009] A contact switch is located on the other side of the fixed wheel.

[0010] According to an embodiment of this application, an elevator door anti-pinch device is provided. By moving the trigger plate, the transmission component drives the fixed wheel to rotate around the fixed column as the center, and presses the touch plate switch, thereby realizing the anti-pinch function.

[0011] According to one embodiment of this application, the elevator door anti-pinch device further includes:

[0012] A receiving groove is formed in one of the elevator door bodies. A sliding groove is formed on one of the vertical parallel inner sides of the receiving groove. A trigger plate is slidably connected in the sliding groove. A touch switch is installed on another vertical parallel inner side of the receiving groove.

[0013] According to one embodiment of this application, the elevator door anti-pinch device further includes:

[0014] The reset spring is fixed between the inner side of the vertical parallel groove and the inner side of the trigger plate, and a telescopic column is installed inside the reset spring;

[0015] The telescopic column is fixed at both ends to the inner side of the vertical parallel groove and the inner side of the trigger plate, respectively.

[0016] According to one embodiment of this application, the elevator door anti-pinch device further includes:

[0017] A pair of fixed columns are symmetrically fixed to the two inner sides of the transversely parallel groove, and a fixed rod is hinged to the end of the fixed column. A connecting rod is fixed between the pair of fixed rods, and the fixed wheel is fixed to the middle of the outer side of the connecting rod.

[0018] The contact plate is fixed to the inner middle of the trigger plate and abuts against the fixed wheel.

[0019] According to one embodiment of this application, the elevator door anti-pinch device further includes:

[0020] Another elevator door body has a fixing groove on the side near the trigger plate, and the trigger plate can be located in the fixing groove.

[0021] According to one embodiment of this application, the elevator door anti-pinch device further includes:

[0022] A rubber block is fixed to the outside of the trigger plate.

[0023] Secondly, this application provides an anti-pinch device for elevator doors;

[0024] Including at least one of the following beneficial technical effects:

[0025] 1. This application uses the reset spring and telescopic column in the elastic component to support the trigger plate, and the trigger plate covers the entire vertical door gap without any blind spots, which can effectively prevent the hand from being pinched in the door gap.

[0026] 2. This application achieves the anti-pinch function by moving the trigger plate, causing the transmission component to drive the fixed wheel to rotate around the fixed column as the center, and pressing the contact plate switch.

[0027] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0028] The above or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0029] Figure 1 This is a three-dimensional structural front view provided in the embodiments of this application;

[0030] Figure 2 This is the second of the three-dimensional structure front cross-section and disassembly diagrams provided in the embodiments of this application;

[0031] Figure 3 This is a structural disassembly diagram of the communication component provided in the embodiments of this application;

[0032] Figure 4 This is a structural schematic diagram of another elevator door body provided in an embodiment of this application;

[0033] Figure label:

[0034] 100. Elevator door body;

[0035] 110. Trigger plate;

[0036] 120. Return spring;

[0037] 130. Fixed wheel;

[0038] 140. Contact switch;

[0039] 200. Container groove; 201. Slide groove;

[0040] 300. Telescopic bollard;

[0041] 400. Fixed column; 401. Fixed rod; 402. Connecting rod; 403. Contact plate;

[0042] 500, Fixing slot;

[0043] 600. Rubber block; Detailed Implementation

[0044] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0045] The following is for reference. Figures 1-4This application describes an elevator door anti-pinch device according to an embodiment of the present application.

[0046] like Figure 2 As shown, an elevator door anti-pinch device includes:

[0047] Trigger plate 110 is slidably installed inside one of the elevator door bodies 100, and the outer side of trigger plate 110 is located outside one of the elevator door bodies 100;

[0048] The elastic component includes a return spring 120 for elastically supporting the trigger plate 110;

[0049] The transmission assembly includes a fixed wheel 130 that contacts the center of the inner side of the trigger plate 110;

[0050] The contact switch 140 is located on the other side of the fixed wheel 130.

[0051] According to an embodiment of this application, an elevator door anti-pinch device is provided. By moving the trigger plate 110, the transmission component drives the fixed wheel 130 to rotate around the fixed column 400 as the center, and the return spring 120 in the elastic component contracts until the fixed wheel 130 in the transmission component is rotated by the trigger plate 110 until it contacts the touch switch 140, thereby realizing the anti-pinch function.

[0052] In some embodiments, such as Figures 1-4 As shown, this elevator door anti-pinch device further includes:

[0053] A sump 200 is formed inside one of the elevator door bodies 100. A slide groove 201 is formed on the inner side of the sump 200, which is vertically parallel to the inside. A trigger plate 110 is slidably connected in the slide groove 201, and a touch switch 140 is installed on the inner side of the sump 200, which is vertically parallel to the inside.

[0054] The reset spring 120 is fixed between the inner side of the vertical parallel groove 200 and the inner side of the trigger plate 110, and a telescopic column 300 is installed inside the reset spring 120.

[0055] The telescopic column 300 is fixed at both ends to the inner side of the vertical parallel groove 200 and the inner side of the trigger plate 110, respectively.

[0056] A pair of fixed columns 400 are symmetrically fixed on the two inner sides of the transverse parallel groove 200, and a fixed rod 401 is hinged to the end of the fixed column 400. A connecting rod 402 is fixed between the pair of fixed rods 401, and a fixed wheel 130 is fixed to the middle of the outer side of the connecting rod 402.

[0057] The contact plate 403 is fixed to the inner middle of the trigger plate 110, and the contact plate 403 abuts against the fixed wheel 130.

[0058] A rubber block 600 is fixed to the outside of the trigger plate 110.

[0059] Understandably, if a hand or object is located between a pair of elevator door bodies 100 during the closing process, the hand or object will first touch the rubber block 600 fixed to the outside of the trigger plate 110. The soft rubber block 600 can prevent the hand or object from being injured or damaged.

[0060] At this time, the trigger plate 110 will move towards the groove 200 inside one of the elevator door bodies 100. During the movement, the trigger plate 110 will slide in the slide groove 201 opened on the vertical parallel side of the groove 200 and squeeze the compression spring and telescopic column 300 between the trigger plate 110 and the vertical parallel inner side of the groove 200.

[0061] Meanwhile, the contact plate 403 located on the inner middle of the trigger plate 110 will contact the fixed wheel 130 fixed to the outer side of the connecting rod 402. When the trigger plate 110 continues to slide into the receiving groove 200, the fixed wheel 130 will drive a pair of fixed rods 401 to rotate in a circle with the end of the fixed column 400 as the center, so that the fixed wheel 130 presses the column contact switch 140. The contact switch 140 is triggered, and the elevator control circuit immediately interrupts the door closing action and executes the door opening procedure, thereby preventing pinching.

[0062] The inward movement of the trigger plate 110 is amplified by the transmission assembly and converted into a pressing action of the fixed wheel 130 on the contact switch 140.

[0063] This application also provides an elevator door anti-pinch device.

[0064] like Figure 4 As shown, the elevator door anti-pinch device includes:

[0065] Another elevator door body 100 has a fixing groove 500 on the side near the trigger plate 110, and the trigger plate 110 can be located in the fixing groove 500.

[0066] Understandably, during normal door closing, the trigger plate 110 protrudes slightly from the door plane of one of the elevator door bodies 100 under the action of the return spring 120. During the closing process, the trigger plate 110 first contacts the other elevator door body 100 until the protruding trigger plate 110 is completely located in the fixing groove 500 opened in the other elevator door body 100, at which point the touch switch 140 will not be triggered, and the door will close normally.

[0067] The implementation principle of an elevator door anti-pinch device in this application embodiment is as follows:

[0068] During the closing process, when there is a hand or object between a pair of elevator door bodies 100, the hand or object will first touch the rubber block 600 fixed to the outside of the trigger plate 110. The trigger plate 110 will slide towards the groove 200 inside one of the elevator door bodies 100, and squeeze the trigger plate 110 and the groove 200 to be vertically parallel. Then, press the column contact switch 140.

[0069] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0070] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0071] In the description of this application, "multiple" means two or more.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An elevator door anti-pinch device comprising an elevator door body (100), a pair of said elevator door bodies (100) being symmetrically arranged, characterized in that, Also includes: A trigger plate (110) is slidably installed inside one of the elevator door bodies (100), and the outer side of the trigger plate (110) is located outside one of the elevator door bodies (100); The elastic component includes a return spring (120) for elastically supporting the trigger plate (110); A transmission assembly, the transmission assembly including a fixed wheel (130) that contacts the inner center of the trigger plate (110); A touch switch (140) is located on the other side of the fixed wheel (130).

2. The anti-pinch device for an elevator door according to claim 1, wherein include: A receiving groove (200) is provided in one of the elevator door bodies (100). A sliding groove (201) is provided on the inner side of the receiving groove (200) in a vertical parallel manner. A trigger plate (110) is slidably connected in the sliding groove (201). A touch switch (140) is installed on the inner side of the receiving groove (200) in a vertical parallel manner.

3. The elevator door anti-pinch device of claim 2, wherein, include: The reset spring (120) is fixed between the inner side of the vertical parallel groove (200) and the inner side of the trigger plate (110), and a telescopic column (300) is installed inside the reset spring (120); The telescopic column (300) is fixed at both ends to the inner side of the vertical parallel groove (200) and the inner side of the trigger plate (110), respectively.

4. The anti-pinch device for an elevator door according to claim 2, wherein include: A pair of fixed columns (400) are symmetrically fixed to the two inner sides of the transverse parallel groove (200), and a fixed rod (401) is hinged to the end of the fixed column (400). A connecting rod (402) is fixed between the pair of fixed rods (401), and the fixed wheel (130) is fixed to the middle of the outer side of the connecting rod (402). The contact plate (403) is fixed to the inner middle of the trigger plate (110) and abuts against the fixed wheel (130).

5. The elevator door anti-pinch device according to claim 1, characterized in that, Another elevator door body (100) has a fixing groove (500) on the side near the trigger plate (110), and the trigger plate (110) can be located in the fixing groove (500).

6. The elevator door anti-pinch device of claim 1, wherein, A rubber block (600) is fixed to the outside of the trigger plate (110).

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