Electric suction door with protection function

Abstract

The utility model discloses an electric suction door with a protection function, and belongs to the technical field of electric suction doors. An electric suction door with a protection function comprises a door leaf, a first magnetic block, a sliding rail, a sliding block, a limiting cavity, an electromagnet, a second magnetic block, a wear-resistant rubber layer, a driving rod, a control module, a spring and a speed sensor. The first magnetic block is fixedly installed on the door leaf, the sliding rail is fixedly installed on a door frame or a wall, the sliding block slides on the sliding rail in a limited mode, the electromagnet is fixedly installed in the sliding block, the second magnetic block is installed on the sliding block in a sliding mode, the electromagnet is in magnetic attraction fit with the first magnetic block and the second magnetic block, one end of the driving rod is connected with the door leaf, and the other end of the driving rod is connected with the sliding block. The control module is electrically connected with the second magnetic block; and by arranging a second magnetic block, when an electromagnet is electrified, the second magnetic block can be attracted downwards, so that a wear-resistant rubber layer makes contact with the sliding rail, the door leaf opening speed is reduced through friction force, and the situation that the door leaf and the door frame are violently expanded, and the door leaf is damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric suction doors, and more specifically to an electric suction door with a protective function. Background Art

[0002] Electric suction doors are an automatic door system that is commonly used in commercial buildings, offices, hospitals, etc. They use electricity or electromagnetic force to control the opening and closing of the door, providing convenient access and can be operated automatically without human intervention.

[0003] After searching, the patent document with the existing publication number CN201546547U provides an induction-controlled electromagnetic door suction. The device is equipped with an infrared ranging sensor, so that the controller can control the working state of the electromagnetic suction according to the signal of the infrared ranging sensor, thereby realizing the control of the opening and closing of the door.

[0004] The above-mentioned electric suction door is the same as most electric suction doors on the market. It only realizes the control of the opening and closing of the door based on the signal, and lacks the necessary protective structure. When the above-mentioned device is used, due to the lack of necessary protective structure, the door leaf cannot be controlled at a speed when closing, which may easily cause the door leaf to collide violently with the door stop or door frame, causing damage to the door leaf.

[0005] In view of this, we propose an electric suction door with protective function. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] The purpose of the utility model is to provide an electric suction door with a protective function to solve the problems raised in the above background technology.

[0008] 2. Technical solution

[0009] The utility model is realized by the following technical solutions:

[0010] An electric suction door with a protective function comprises a door leaf, a first magnetic block, a slide rail, a slide block, an electromagnet, a second magnetic block, a driving rod and a control module;

[0011] The first magnetic block is fixedly installed on the door leaf, the slide rail is fixedly installed on the door frame or the wall, the slider slides at the upper limit of the slide rail, the electromagnet is fixedly installed in the slider, the second magnetic block is slidably installed on the slider, the electromagnet is magnetically matched with the first magnetic block and the second magnetic block, one end of the driving rod is connected to the door leaf, and the other end is connected to the slider, and the control module is electrically connected to the second magnetic block.

[0012] As an optional solution of the technical solution of the present application document, one end of the driving rod is rotatably connected to the door leaf through a hinge seat, and the other end of the driving rod is rotatably connected to the slider through a hinge seat.

[0013] As an optional solution of the technical solution of this application document, it also includes a speed sensor, which is electrically connected to the control module.

[0014] As an optional solution of the technical solution of this application document, the speed sensor is installed inside the slider.

[0015] As an optional solution to the technical solution of the present application document, a limiting cavity is opened on the upper part of the sliding block, the second magnetic block is slidably arranged inside the limiting cavity, a spring is arranged in the limiting cavity, one end of the spring is connected and fixed to the second magnetic block, and the other end of the spring is connected and fixed to the inner wall of the limiting cavity.

[0016] As an optional solution to the technical solution of the present application document, a wear-resistant rubber layer is provided on the side of the second magnetic block in contact with the slide rail, and the side of the slide rail in contact with the second magnetic block is arranged in an inclined shape; when the door leaf is opened, the distance between the second magnetic block and the slide rail continues to shrink.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The present application sets a second magnetic block, which can attract the second magnetic block downward when the electromagnet is energized, so that the wear-resistant rubber layer contacts the slide rail, and uses friction to reduce the speed of the door leaf when it is opened, thereby avoiding violent expansion of the door leaf and the door frame, which may cause damage to the door leaf.

[0020] 2. This application connects the door leaf and the slider through a driving rod. When the door leaf is closed, the driving rod can push the slider to move. The speed sensor is used to obtain the moving speed of the slider, which is used as the basis for the control module to control the electromagnet to be energized in advance, thereby realizing the automation of the protection function.

[0021] 3. The present application sets the contact surface between the slide rail and the second magnetic block in an inclined shape. When the door leaf is opened, the distance between the second magnetic block and the slide rail gradually decreases and contacts with each other, thereby limiting the speed at which the door leaf opens. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an electric suction door with a protective function;

[0023] Figure 2 It is a schematic diagram of the installation structure of a slider of an electric suction door with a protective function;

[0024] Figure 3It is a schematic diagram of the internal structure of a slider of an electric suction door with a protective function;

[0025] In the figure: 1. door leaf; 2. first magnetic block; 3. slide rail; 4. slider; 401. limit cavity; 5. electromagnet; 6. second magnetic block; 601. wear-resistant rubber layer; 7. drive rod; 8. control module; 9. spring. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0027] See also Figure 1-Figure 3 The utility model provides an electric suction door with a protective function, including a door leaf 1, a first magnetic block 2, a slide rail 3, a slider 4, a limit cavity 401, an electromagnet 5, a second magnetic block 6, a wear-resistant rubber layer 601, a driving rod 7, a control module 8, a spring 9 and a speed sensor.

[0028] like Figure 1 As shown, the first magnetic block 2 is fixedly mounted on the door leaf 1, the slide rail 3 is fixedly mounted on the door frame or the wall, the slider 4 is slidably arranged on the slide rail 3, the electromagnet 5, the second magnetic block 6, the control module 8, the spring 9 and the speed sensor are all mounted inside the slider 4; the two ends of the driving rod 7 are rotatably connected with the slider 4 and the door leaf 1 through the hinge seat, as shown in FIG. Figure 2 As shown, the door leaf 1 drives the slider 4 to slide on the slide rail 3 when closing.

[0029] The electromagnet 5 always remains energized. When the door leaf 1 is closed, the electromagnet 5 cooperates with the first magnetic block 2 to control the closing of the door leaf 1. After the control module 8 receives the external control signal, the electromagnet 5 is controlled to remain de-energized within a set time, so that the door leaf 1 can be opened freely, thereby realizing the opening control of the door leaf 1.

[0030] like Figure 3 As shown, a limit cavity 401 is provided inside the slider 4, and the second magnetic block 6 is slidably arranged inside the limit cavity 401. A spring 9 is arranged in the limit cavity 401, and one end of the spring 9 is connected and fixed to the second magnetic block 6, and the other end of the spring 9 is connected and fixed to the inner wall of the limit cavity 401; when the door leaf 1 is opened, the spring 9 pulls the second magnetic block 6 upward, and the driving rod 7 pulls the slider 4 to slide on the slide rail 3, and the contact surface between the slide rail 3 and the second magnetic block 6 is arranged in an inclined shape, so that when the door leaf 1 is opened, the gap between the second magnetic block 6 and the slide rail 3 is gradually reduced and contacted, and the rotation speed of the door leaf 1 when it is opened is reduced by friction; the side of the second magnetic block 6 that contacts the slide rail 3 is provided with a wear-resistant rubber layer 601, which is used to reduce the noise when the second magnetic block 6 and the slide rail 3 are in friction contact.

[0031] When the door leaf 1 is closed, the control module 8 obtains the moving speed of the slider 4 through the speed sensor; when the moving speed of the slider 4 exceeds the set threshold, the control module 8 controls the electromagnet 5 to be energized in advance, and the electromagnet 5 cooperates with the second magnetic block 6 by magnetic attraction, so that the second magnetic block 6 moves downward, so that the wear-resistant rubber layer 601 is in friction contact with the slide rail 3, thereby reducing the speed of the door leaf 1 when closing, avoiding the door leaf 1 and the door frame from drastic expansion, which may cause damage to the door leaf 1.

Claims

1. An electric suction door with a protective function, characterized in that: It comprises a door leaf (1), a first magnetic block (2), a slide rail (3), a slider (4), an electromagnet (5), a second magnetic block (6), a driving rod (7) and a control module (8); The first magnetic block (2) is fixedly mounted on the door leaf (1), the slide rail (3) is fixedly mounted on the door frame or the wall, the slider (4) slides at an upper limit position on the slide rail (3), the electromagnet (5) is fixedly mounted in the slider (4), the second magnetic block (6) is slidably mounted on the slider (4), the electromagnet (5) is magnetically matched with the first magnetic block (2) and the second magnetic block (6), one end of the driving rod (7) is connected to the door leaf (1), and the other end is connected to the slider (4), and the control module (8) is electrically connected to the second magnetic block (6).

2. The electric suction door with protection function according to claim 1 is characterized in that: One end of the driving rod (7) is rotatably connected to the door leaf (1) via a hinge seat, and the other end of the driving rod (7) is rotatably connected to the slider (4) via a hinge seat.

3. The electric suction door with protection function according to claim 1 is characterized in that: It also includes a speed sensor, which is electrically connected to the control module (8).

4. The electric suction door with protection function according to claim 3 is characterized in that: The speed sensor is installed inside the slider (4).

5. The electric suction door with protection function according to claim 1 is characterized in that: A limiting cavity (401) is provided on the upper portion of the sliding block (4), the second magnetic block (6) is slidably arranged inside the limiting cavity (401), a spring (9) is arranged inside the limiting cavity (401), one end of the spring (9) is connected and fixed to the second magnetic block (6), and the other end of the spring (9) is connected and fixed to the inner wall of the limiting cavity (401).

6. The electric suction door with protection function according to claim 1, characterized in that: A wear-resistant rubber layer (601) is provided on the side of the second magnetic block (6) in contact with the slide rail (3), and a side of the slide rail (3) in contact with the second magnetic block (6) is arranged in an inclined shape; when the door leaf (1) is opened, the distance between the second magnetic block (6) and the slide rail (3) is continuously reduced.

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