Linkage device integrating synchronous driving of car door lock and door knife

Abstract

The utility model discloses a linkage device integrating synchronous driving of a car door lock and a door knife, and relates to the technical field of elevators. The upper sill comprises an upper sill body, a driving assembly is arranged on the upper sill body, a first moving frame and a second moving frame are movably installed in the upper sill body, the first moving frame and the second moving frame are driven by the driving assembly to move in an opening and closing mode, and a lower locking hook is fixedly installed on the second moving frame. An electromagnetic switch assembly is arranged on the surface of the first moving frame. The driving assembly synchronously drives the first moving frame and the second moving frame to open and close through the moving part of the driving assembly, when the first moving frame and the second moving frame are closed, the lower lock hook and the upper lock hook are meshed with each other, the first moving frame and the second moving frame are locked, and the electromagnetic switch assembly controls the upper lock hook to rotate through the rotating shaft. The door knife body is in linkage with the upper lock hook through the rotating shaft, and it is guaranteed that the action of the door knife is synchronous with the car door lock.

Description

Technical Field

[0001] This utility model relates to the field of elevator technology, specifically to a linkage device that integrates car door lock and door knife synchronous drive. Background Technology

[0002] In modern elevator systems, car door locks and door switches are two critical safety and functional components. In traditional elevator designs, car door locks and door switches typically employ independent drive and control systems. This design presents the following problems:

[0003] The car door lock and door knife are controlled by independent drive units, which leads to a complex overall structure and increases manufacturing and maintenance costs. Since the drive systems of the two components are independent, the actions of the door knife and car door lock may be out of sync, affecting the safety and reliability of elevator operation. The independent drive system increases the number of failure points and reduces the overall reliability of the system.

[0004] To address this, a linkage device integrating the car door lock and door knife for synchronous drive is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a linkage device that integrates a car door lock and a door knife for synchronous driving, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A linkage device integrating a car door lock and a door knife for synchronous driving includes an upper sill body. A driving assembly is provided on the upper sill body. A first movable frame and a second movable frame are movably installed inside the upper sill body, and the first movable frame and the second movable frame are driven to open and close via the driving assembly. A lower locking hook is fixedly installed on the second movable frame. An electromagnetic switch assembly is provided on the surface of the first movable frame. The upper locking hook is rotatably installed on the surface of the electromagnetic switch assembly via a rotating shaft, and the electromagnetic switch assembly is used to control the rotation of the lower locking hook. A door knife body is provided at the end of the rotating shaft, and the door knife body is moved synchronously when the lower locking hook rotates.

[0008] Furthermore, the drive assembly includes two sets of mounting brackets fixedly mounted on the upper sill. Synchronous wheels are rotatably mounted on the surfaces of the two sets of mounting brackets. An electric motor is fixedly mounted on the rear side wall of one set of mounting brackets, and the output end of the electric motor is connected to the synchronous wheel. Ropes are sleeved on the surfaces of the two sets of synchronous wheels, and the first moving frame and the second moving frame are respectively fixed to the ropes.

[0009] Furthermore, the electromagnetic switch assembly includes a frame fixedly mounted on the surface of the first movable frame, and a mounting shaft fixedly mounted on the top surface of the frame. The mounting shaft is interference-fitted with the upper locking hook. An iron ring is slidably mounted on the surface of the mounting shaft. The iron ring is fixed to the top surface of the upper locking hook. An electromagnet is fixedly mounted on the surface of the mounting shaft. A spring is sleeved on the surface of the mounting shaft, and the two ends of the spring are fixed to the iron ring and the electromagnet, respectively. The rotating shaft rotates on the surface of the frame, and the upper locking hook is fixedly sleeved on the surface of the rotating shaft.

[0010] Furthermore, the upper and lower locking hooks are engaged to lock and limit the first and second movable frames.

[0011] Furthermore, the rear sidewalls of the first and second movable frames are provided with limiting wheels, and the first and second movable frames are slidably installed with the upper sill body via the limiting wheels.

[0012] Furthermore, the surface of the synchronous pulley is provided with an arc-shaped groove, and the rope is located in the arc-shaped groove on the surface of the synchronous pulley.

[0013] The beneficial effects of this utility model are as follows:

[0014] The drive assembly synchronously drives the first and second moving frames to open and close through its moving part. When the first and second moving frames are closed, the lower locking hook and the upper locking hook engage with each other to lock the first and second moving frames. The electromagnetic switch assembly controls the rotation of the upper locking hook through the rotating shaft to lock and unlock the car door lock. The door knife body is linked with the upper locking hook through the rotating shaft to ensure that the door knife action is synchronized with the car door lock. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a partial schematic diagram of the present invention;

[0018] Figure 4 This is a side view of the first movable frame of this utility model;

[0019] Reference numerals: 1. Upper frame; 2. Drive assembly; 201. Mounting bracket; 202. Motor; 203. Synchronous pulley; 204. Rope; 3. First moving frame; 4. Second moving frame; 5. Lower locking hook; 6. Electromagnetic switch assembly; 601. Frame; 602. Mounting shaft; 603. Iron ring; 604. Electromagnet; 605. Spring; 61. Rotating shaft; 7. Upper locking hook; 8. Door knife body. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0024] like Figures 1 to 4As shown, a linkage device integrating a car door lock and a door knife for synchronous driving includes an upper sill 1, a drive assembly 2 on the upper sill 1, a first movable frame 3 and a second movable frame 4 movably installed inside the upper sill 1, so as to drive the first movable frame 3 and the second movable frame 4 to open and close via the drive assembly 2, a lower locking hook 5 fixedly installed on the second movable frame 4, an electromagnetic switch assembly 6 on the surface of the first movable frame 3, an upper locking hook 7 rotatably installed on the surface of the electromagnetic switch assembly 6 via a rotating shaft 61, and the electromagnetic switch assembly 6 is used to control the rotation of the lower locking hook 5, and a door knife body 8 is provided at the end of the rotating shaft 61, which synchronously controls the movement of the door knife body 8 when the lower locking hook 5 rotates. More specifically, the drive assembly 2 synchronously drives the first moving frame 3 and the second moving frame 4 to open and close through its moving part. When the first moving frame 3 and the second moving frame 4 are closed, the lower locking hook 5 and the upper locking hook 7 engage with each other to lock the first moving frame 3 and the second moving frame 4. The electromagnetic switch assembly 6 controls the upper locking hook 7 to rotate through the rotating shaft 61, thereby realizing the locking and unlocking of the car door lock. The door knife body 8 is linked with the upper locking hook 7 through the rotating shaft 61 to ensure that the door knife action is synchronized with the car door lock.

[0025] The drive assembly 2 includes two sets of mounting brackets 201 fixedly mounted on the upper sill 1. Synchronous pulleys 203 are rotatably mounted on the surfaces of the two sets of mounting brackets 201. A motor 202 is fixedly mounted on the rear side wall of one set of mounting brackets 201, and the output end of the motor 202 is connected to the synchronous pulley 203. Ropes 204 are sleeved on the surfaces of the two sets of synchronous pulleys 203, and the first moving frame 3 and the second moving frame 4 are respectively fixed to the ropes 204. More specifically, the synchronous pulleys 203 are driven to rotate by the forward and reverse rotation of the motor 202. The synchronous pulleys 203 drive the first moving frame 3 and the second moving frame 4 to open and close synchronously. When the first moving frame 3 and the second moving frame 4 are closed, they are locked by the engagement between the lower locking hook 5 and the upper locking hook 7.

[0026] The electromagnetic switch assembly 6 includes a frame 601 fixedly mounted on the surface of the first movable frame 3, and a mounting shaft 602 fixedly mounted on the top surface of the frame 601. The mounting shaft 602 is interference-fitted with the upper locking hook 7. An iron ring 603 is slidably mounted on the surface of the mounting shaft 602. The iron ring 603 is fixed to the top surface of the upper locking hook 7. An electromagnet 604 is fixedly mounted on the surface of the mounting shaft 602. A spring 605 is sleeved on the surface of the mounting shaft 602. The two ends of the spring 605 are fixed to the iron ring 603 and the electromagnet 604, respectively. A rotating shaft 61 rotates on the surface of the frame 601, and the upper locking hook 7 is fixedly sleeved on the surface of the rotating shaft 61. More specifically, under normal conditions, the spring 605 is in a relaxed state. When the lower locking hook 5 and the upper locking hook 7 are unlocked, the electromagnet 604 is energized to generate magnetic force, causing the iron ring 603 and the upper locking hook 7 to move vertically upward along the surface of the mounting shaft 602. This causes the upper locking hook 7 to drive the rotating shaft 61 to rotate, thereby synchronously driving the door knife body 8 to run.

[0027] The upper locking hook 7 and the lower locking hook 5 are engaged to lock and limit the first movable frame 3 and the second movable frame 4. More specifically, the engagement of the upper locking hook 7 and the lower locking hook 5 achieves the locking and limiting of the first movable frame 3 and the second movable frame 4.

[0028] The rear sidewalls of the first movable frame 3 and the second movable frame 4 are provided with limiting wheels, which are slidably mounted to the upper sill body 1. More specifically, the limiting wheels on the rear sidewalls of the first movable frame 3 and the second movable frame 4 are used to limit and guide the movement of the first movable frame 3 and the second movable frame 4 on the surface of the upper sill body 1.

[0029] The surface of the synchronous pulley 203 is provided with an arc-shaped groove, and the rope 204 is located within the arc-shaped groove on the surface of the synchronous pulley 203. More specifically, the arc-shaped groove on the surface of the synchronous pulley 203 is used to limit the movement of the rope 204, thereby improving the stability of operation.

[0030] In summary: the drive assembly 2 synchronously drives the first moving frame 3 and the second moving frame 4 to open and close through its moving part. When the first moving frame 3 and the second moving frame 4 are closed, the lower locking hook 5 and the upper locking hook 7 engage with each other to lock the first moving frame 3 and the second moving frame 4. The electromagnetic switch assembly 6 controls the rotation of the upper locking hook 7 through the rotating shaft 61, thereby realizing the locking and unlocking of the car door lock. The door knife body 8 is linked with the upper locking hook 7 through the rotating shaft 61 to ensure that the door knife action is synchronized with the car door lock.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A linkage device integrating a car door lock and a door knife for synchronous drive, characterized in that, The device includes an upper sill (1), on which a drive assembly (2) is provided. A first movable frame (3) and a second movable frame (4) are movably installed inside the upper sill (1) so as to drive the first movable frame (3) and the second movable frame (4) to open and close via the drive assembly (2). A lower locking hook (5) is fixedly installed on the second movable frame (4). An electromagnetic switch assembly (6) is provided on the surface of the first movable frame (3). An upper locking hook (7) is rotatably installed on the surface of the electromagnetic switch assembly (6) via a rotating shaft (61). The electromagnetic switch assembly (6) is used to control the rotation of the lower locking hook (5). A door knife body (8) is provided at the end of the rotating shaft (61). When the lower locking hook (5) rotates, the door knife body (8) is moved synchronously.

2. The linkage device for synchronously driving an integrated car door lock and a door knife according to claim 1, characterized in that, The drive assembly (2) includes two sets of mounting brackets (201) fixedly mounted on the upper sill (1). Synchronous wheels (203) are rotatably mounted on the surface of the two sets of mounting brackets (201). A motor (202) is fixedly mounted on the rear side wall of one set of mounting brackets (201), and the output end of the motor (202) is connected to the synchronous wheel (203). Ropes (204) are sleeved on the surface of the two sets of synchronous wheels (203), and the first moving frame (3) and the second moving frame (4) are fixed to the ropes (204) respectively.

3. The linkage device for synchronously driving an integrated car door lock and a door knife according to claim 1, characterized in that, The electromagnetic switch assembly (6) includes a frame (601) fixedly mounted on the surface of the first movable frame (3), and a mounting shaft (602) fixedly mounted on the top surface of the frame (601). The mounting shaft (602) is interference-fitted with the upper locking hook (7). An iron ring (603) is slidably mounted on the surface of the mounting shaft (602). The iron ring (603) is fixed to the top surface of the upper locking hook (7). An electromagnet (604) is fixedly mounted on the surface of the mounting shaft (602). A spring (605) is sleeved on the surface of the mounting shaft (602). The two ends of the spring (605) are fixed to the iron ring (603) and the electromagnet (604) respectively. A rotating shaft (61) rotates on the surface of the frame (601), and the upper locking hook (7) is fixedly sleeved on the surface of the rotating shaft (61).

4. The linkage device for synchronously driving an integrated car door lock and a door knife according to claim 1, characterized in that, When the upper locking hook (7) and the lower locking hook (5) are engaged, they are used to lock and limit the first movable frame (3) and the second movable frame (4).

5. The linkage device for synchronously driving an integrated car door lock and a door knife according to claim 1, characterized in that, The rear sidewalls of the first movable frame (3) and the second movable frame (4) are provided with limiting wheels, and the first movable frame (3) and the second movable frame (4) are slidably installed with the upper sill (1) via the limiting wheels.

6. The linkage device for synchronously driving an integrated car door lock and a door knife according to claim 2, characterized in that, The surface of the synchronous pulley (203) is provided with an arc-shaped groove, and the rope (204) is located in the arc-shaped groove on the surface of the synchronous pulley (203).

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