Elevator car door with high opening and closing stability

Abstract

The utility model discloses an elevator car door with high opening and closing stability, and relates to the technical field of elevator car doors, the elevator car door comprises a car door body, the top end of the car door body is provided with a group of symmetrical mounting strips, the top end of the car door body is positioned on the opposite sides of the mounting strips, the opposite sides of the mounting strips are provided with sliding chutes, and the cross sections of the sliding chutes are T-shaped. When the electric telescopic rod pushes the rack to move back and forth, the first guide wheel slides in the sliding groove along the same track, and at the moment, the second transmission gear drives the connected connecting angle to swing in an arc shape, and meanwhile the shape of the connecting angle is changed from a rectangle to a parallelogram. At the moment, the first transmission gear drives the other first transmission gear to enable the other connecting frame to move along the same track, and then the transmission strip pulls the driving mechanism to control the car door body to be closed and opened, so that the stability of opening and closing of the elevator car door is guaranteed, and meanwhile output equipment is prevented from directly controlling the elevator car door. And shaking caused by small buffering during operation of the elevator car door is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator car doors, in particular to an elevator car door with high opening and closing stability. Background Art

[0002] The car door is a component of the elevator structure, the door you see when the elevator is closed. It contrasts with the landing door (also known as the landing door), which is the door you see when you call the elevator from the outside. An elevator is a vertical lift equipped with a box-shaped cabin, called the car. This is the box-shaped space used by the elevator to carry and transport people and materials. The car is generally composed of the car floor, car walls, car roof, and car doors.

[0003] Existing elevator doors are generally directly controlled by drive devices to open and close. In this case, the elevator door control speed is completely controlled by the drive device. At this time, the control accuracy of the control device and the switching motion mode requirements will be increased when ensuring the overall stability of the motor. To this end, we propose an elevator door with high opening and closing stability. Utility Model Content

[0004] Technical problems solved

[0005] The purpose of the utility model is to remedy the deficiencies of the prior art and to provide an elevator car door with high opening and closing stability.

[0006] Technical Solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator car door with high opening and closing stability, comprising a car door body, a group of symmetrical mounting strips being provided at the top of the door body, and the top of the car door body being located on opposite sides of the mounting strips, a slide groove being provided on opposite sides of the mounting strips, and the slide groove cross-section being T-shaped, the top of the car door body being fixedly connected to a driving mechanism, the top of the driving mechanism being movably connected to a control mechanism, and the control mechanism being located on opposite sides of the mounting strips.

[0008] The above-mentioned control mechanism includes an electric telescopic rod, a rack, a connecting frame, a transmission gear 1, a transmission gear 2 and a linkage bar. The connecting frame is rectangular and the four connecting corners are movably connected by a rotating shaft, and the connecting frame is symmetrically provided with two. The transmission gear 1 is provided with two and meshes with each other, and the transmission gear 1 is movably connected to a corner on the opposite side of the connecting frame. The two ends of the linkage bar are movably connected to the middle position on the opposite side of the connecting frame through a rotating shaft. The transmission gear 1 is movably connected to one end corner of the connecting frame, the rack is meshed with the bottom end of the transmission gear 2, and the output of the electric telescopic rod is fixedly connected to the rear end of the rack.

[0009] As mentioned above, the connecting frame is located at one end of the transmission gear 2 and is movably connected to a fixed block through a rotating shaft. The side of the fixed block away from the connecting frame is fixedly connected to the inner side of the mounting bar, and the fixed block is located directly above the opening of the slide slot.

[0010] As mentioned above, the rack is located at one end of the electric telescopic rod connection and both sides are movably connected to the guide wheel 1, and the guide wheel 1 is movably connected to the inside of the adjacent sliding groove.

[0011] As mentioned above, the driving mechanism includes a connecting block, a second guide wheel, an electric hydraulic rod and a clamping block. The second guide wheel is movably connected to both sides of the connecting block through a rotating shaft. The output end of the electric hydraulic rod is fixedly connected to the clamping block through a connecting rod, and the clamping block and the second guide wheel are located in the same cross section. The clamping block is opened inward through the second guide wheel in an arc shape.

[0012] As mentioned above, the bottom end of the connecting block is fixedly connected to the top end of the car door, and the two corners of the other connecting frame away from the second transmission gear are movably connected to the top of the connecting block through the rotating shaft.

[0013] As mentioned above, a connecting groove is provided at the front end of the connecting block, and the end of the electric hydraulic rod away from the clamping block is fixedly connected to the inside of the connecting groove, and the clamping block and the guide wheel are both located inside the slide groove.

[0014] Beneficial effects:

[0015] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0016] 1. The utility model is provided with an electric telescopic rod. When the electric telescopic rod pushes the rack to move back and forth, the guide wheel 1 slides in the same track inside the slide groove. At this time, the transmission gear 2 drives the connected connecting angle to swing in an arc, and its shape changes from a rectangle to a parallelogram. At this time, the transmission gear 1 drives the other transmission gear 1 to make the other connecting frame move in the same track. Then the transmission bar pulls the driving mechanism to control the closing and opening of the car door body, which is conducive to ensuring the stability of the elevator car door when opening and closing, and at the same time avoids the output device directly controlling the elevator car door, resulting in a small buffer when the elevator car door is in operation and causing shaking.

[0017] 2. The utility model uses a driving mechanism to drive the motor car door to move by using a connecting block. At this time, when the elevator car door opens and closes faster, the output end of the hydraulic telescopic rod contracts inward. At this time, the clamping block slides toward the side of the guide wheel 2, so that the arc groove opened by the clamping block slowly approaches the guide wheel 2, which is beneficial for controlling the speed of the elevator car door when it opens and closes too quickly, and at the same time improves the operating stability of the elevator car door and avoids violent vibration when the motor suddenly stops switching states.

[0018] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the mechanism structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the mechanism structure of the utility model;

[0022] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0023] In the figure: 1. Car door body; 2. Mounting strip; 3. Slide groove; 4. Driving mechanism; 401. Connecting block; 402. Guide wheel 2; 403. Electric hydraulic rod; 404. Clamping block; 5. Control mechanism; 501. Electric telescopic rod; 502. Rack; 503. Connecting frame; 504. Transmission gear 1; 505. Transmission gear 2; 506. Linkage strip; 6. Fixing block; 7. Guide wheel 1; 8. Connecting groove. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figure 1-4 As shown, the utility model provides a technical solution: an elevator car door with high opening and closing stability, including a car door body 1, a group of symmetrical mounting strips 2 are provided at the top of the door body, and the top of the car door body 1 is located on the opposite side of the mounting strips 2, and the opposite sides of the mounting strips 2 are all provided with slide grooves 3, and the cross-section of the slide grooves 3 is T-shaped, the top of the car door body 1 is fixedly connected to a driving mechanism 4, the top of the driving mechanism 4 is movably connected to a control mechanism 5, and the control mechanism 5 is located on the opposite side of the mounting strips 2.

[0026] like Figure 1-3As shown, the control mechanism 5 includes an electric telescopic rod 501, a rack 502, a connecting frame 503, a transmission gear 1 504, a transmission gear 2 505 and a linkage bar 506. The connecting frame 503 is rectangular and the four connecting corners are movably connected by a rotating shaft, and the connecting frame 503 is symmetrically provided with two, and the transmission gear 1 504 is provided with two and meshes with each other, and the transmission gear 1 504 is movably connected to a corner of the opposite side of the connecting frame 503, and the two ends of the linkage bar 506 are movably connected to the middle position of the opposite side of the connecting frame 503 by a rotating shaft. The transmission gear 1 504 is movably connected to the middle position of the opposite side of the connecting frame 503. Connected to one end corner of the connecting frame 503, the rack 502 is engaged with the bottom end of the transmission gear 2 505, and the output of the electric telescopic rod 501 is fixedly connected to the rear end of the rack 502. The connecting frame 503 is located at one end of the transmission gear 2 505 and is movably connected to a fixed block 6 through a rotating shaft. The side of the fixed block 6 away from the connecting frame 503 is fixedly connected to the inner side of the mounting bar 2, and the fixed block 6 is located directly above the opening of the slide groove 3. The rack 502 is located at one end of the connection of the electric telescopic rod 501 and is movably connected to the guide wheel 7 on both sides, and the guide wheel 7 is movably connected to the inside of the adjacent slide groove 3.

[0027] When the rack 502 is pushed forward and backward by the electric telescopic rod 501, the guide wheel 1 7 slides in the same track inside the slide groove 3. At this time, the transmission gear 2 505 drives the connected connecting angle to swing in an arc, and its shape changes from a rectangle to a parallelogram. At this time, the transmission gear 1 504 drives another transmission gear 1 504 to make its other connecting frame 503 move in the same track. Then the transmission bar pulls the driving mechanism 4 to control the closing and opening of the car door body 1, which is beneficial to ensure the stability of the elevator car door when opening and closing, and at the same time avoids the output device directly controlling the elevator car door, resulting in a smaller buffer when the elevator car door is in operation and causing shaking.

[0028] like Figure 1-4 As shown, the driving mechanism 4 includes a connecting block 401, a guide wheel 402, an electric hydraulic rod 403 and a clamping block 404. The guide wheel 402 is movably connected to both sides of the connecting block 401 through a rotating shaft. The output end of the electric hydraulic rod 403 is fixedly connected to the clamping block 404 through a connecting rod, and the clamping block 404 and the guide wheel 402 are located in the same cross section. The clamping block 404 is opened inwardly in an arc shape close to the guide wheel 402. The bottom end of the connecting block 401 is fixedly connected to the top of the car door. The two corners of the other connecting frame 503 away from the transmission gear 505 are movably connected to the top of the connecting block 401 through a rotating shaft. A connecting groove 8 is provided at the front end of the connecting block 401, and the end of the electric hydraulic rod 403 away from the clamping block 404 is fixedly connected to the inside of the connecting groove 8. The clamping block 404 and the guide wheel are both located inside the slide groove 3.

[0029] The motor car door is driven to move by the connecting block 401. At this time, the elevator car door opens and closes faster, and the output end of the hydraulic telescopic rod contracts inward. At this time, the clamping block 404 slides toward the side of the second guide wheel 402, so that the arc groove opened by the clamping block 404 slowly approaches the second guide wheel 402, which is beneficial for controlling the speed of the elevator car door when it opens and closes too quickly, and at the same time improves the operating stability of the elevator car door and avoids violent vibration when the motor suddenly stops switching states.

[0030] Working principle: When the rack 502 is pushed back and forth by the electric telescopic rod 501, the guide wheel 1 7 slides in the same track inside the slide groove 3. At this time, the transmission gear 2 505 drives the connected connecting angle to swing in an arc, and its shape changes from a rectangle to a parallelogram. At this time, the transmission gear 1 504 drives another transmission gear 1 504 to make its other connecting frame 503 move in the same track. Then the transmission bar pulls the connecting block 401 to drive the motor car door to move. At this time, the elevator car door opens and closes faster, and the output end of the hydraulic telescopic rod contracts inward. At this time, the block 404 slides to the side of the guide wheel 2 402, so that the arc groove opened by the block 404 slowly approaches the guide wheel 2 402.

[0031] It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate positions or location relationships based on the positions or location relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator car door with high opening and closing stability, comprising a car door body (1), characterized in that: A group of symmetrical mounting strips (2) are provided at the top of the door body, and the top of the car door body (1) is located on the opposite side of the mounting strips (2), and the opposite sides of the mounting strips (2) are both provided with slide grooves (3), and the cross section of the slide grooves (3) is T-shaped, and the top of the car door body (1) is fixedly connected to a driving mechanism (4), and the top of the driving mechanism (4) is movably connected to a control mechanism (5), and the control mechanism (5) is located on the opposite side of the mounting strips (2).

2. The elevator car door with high opening and closing stability according to claim 1, characterized in that: The control mechanism (5) includes an electric telescopic rod (501), a rack (502), a connecting frame (503), a transmission gear 1 (504), a transmission gear 2 (505) and a linkage bar (506). The connecting frame (503) is rectangular and the four connection corners are all movably connected by a rotating shaft. The connecting frame (503) is symmetrically provided with two, the transmission gear 1 (504) is provided with two and meshes with each other, and the transmission gear 1 (504) is movably connected to a corner of the opposite side of the connecting frame (503). The two ends of the linkage bar (506) are movably connected to the middle position of the opposite side of the connecting frame (503) by a rotating shaft. The transmission gear 1 (504) is movably connected to one end corner of the connecting frame (503). The rack (502) meshes with the bottom end of the transmission gear 2 (505), and the output of the electric telescopic rod (501) is fixedly connected to the rear end of the rack (502).

3. The elevator car door with high opening and closing stability according to claim 2, characterized in that: The connecting frame (503) is located at one end of the transmission gear 2 (505) and is movably connected to a fixed block (6) via a rotating shaft. The side of the fixed block (6) away from the connecting frame (503) is fixedly connected to the inner side of the mounting bar (2), and the fixed block (6) is located directly above the opening of the slide groove (3).

4. The elevator car door with high opening and closing stability according to claim 2, characterized in that: The rack (502) is located at one end of the connection of the electric telescopic rod (501), and both sides thereof are movably connected to the guide wheel (7), and the guide wheel (7) is movably connected to the inside of the adjacent slide groove (3).

5. The elevator car door with high opening and closing stability according to claim 2, characterized in that: The driving mechanism (4) comprises a connecting block (401), a second guide wheel (402), an electric hydraulic rod (403) and a clamping block (404); the second guide wheel (402) is movably connected to both sides of the connecting block (401) via a rotating shaft; the output end of the electric hydraulic rod (403) is fixedly connected to the clamping block (404) via a connecting rod; the clamping block (404) and the second guide wheel (402) are located in the same cross section; the clamping block (404) is opened inwardly in an arc shape near the second guide wheel (402).

6. The elevator car door with high opening and closing stability according to claim 5, characterized in that: The bottom end of the connecting block (401) is fixedly connected to the top of the car door, and the two corners of another connecting frame (503) away from the second transmission gear (505) are movably connected to the top of the connecting block (401) through a rotating shaft.

7. The elevator car door with high opening and closing stability according to claim 5, characterized in that: The front end of the connecting block (401) is provided with a connecting groove (8), and the end of the electric hydraulic rod (403) away from the clamping block (404) is fixedly connected to the inside of the connecting groove (8), and the clamping block (404) and the guide wheel are both located inside the slide groove (3).

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