Anti-pinch device for electrically operated gate

Abstract

The utility model discloses an electric door anti-pinch device which comprises a door frame, a sliding groove is formed in the upper surface of the door frame, the inner surface of the sliding groove is fixedly connected with a double-end motor, the output end of the double-end motor is fixedly connected with a lead screw, the outer surface of the lead screw is in threaded connection with a sliding block, and the inner surface of the sliding block is in sliding connection with a guide rod. A sliding door is fixedly connected to the outer surface of the sliding block, an opening groove and a fixing device are arranged on the side surface of the sliding door, and the fixing device comprises an L-shaped buckle, a clamping box, a slope block, a sliding strip, a limiting ring, a pressing block, a second spring, a partition plate and a connecting base. Pedestrians, especially children and old people, can be effectively prevented from being accidentally pinched in the closing process of the sliding door through the first spring, the buffer block, the push block, the air bag and the touch switch, so that the using safety of the electric door is improved, meanwhile, the air bag can be detached and replaced through the fixing device, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-pinch devices, in particular to an anti-pinch device for electric doors. Background Art

[0002] An electric door is a door that is powered by electricity. It can be opened and closed by remote control, buttons, sensors, etc. Electric doors are widely used in commercial places, residential areas, factories, garages and other places to provide a convenient and fast way to open the door. Since electric doors are powered by electricity, there is a risk of pinching pedestrians, so anti-pinch devices are added to electric doors.

[0003] However, most of the anti-pinch devices for electric doors currently on the market still have certain shortcomings. For example, the anti-pinch function is usually achieved by adding a buffer rubber pad, but the anti-pinch effect of this method is not ideal, which will increase the risk of pinching pedestrians, especially for the elderly and children. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an anti-pinch device for an electric door. The device can effectively prevent pedestrians, especially children and the elderly, from being accidentally pinched during the closing process of the sliding door through a first spring, a buffer block, a push block, an airbag, and a touch switch, thereby improving the safety of using the electric door. At the same time, the airbag can be disassembled and replaced through a fixing device to improve practicality.

[0005] The utility model also provides an electric door anti-pinch device as described above, comprising:

[0006] A door frame, wherein a slide groove is provided on the upper surface of the door frame, a double-headed motor is fixedly connected to the inner surface of the slide groove, a lead screw is fixedly connected to the output end of the double-headed motor, a slider is threadedly connected to the outer surface of the lead screw, a guide rod is slidably connected to the inner surface of the slider, a sliding door is fixedly connected to the outer surface of the slider, an opening groove is provided on the side surface of the sliding door, a first spring is fixedly connected to the inner surface of the opening groove, a buffer block is fixedly connected to the end of the first spring away from the sliding door, a push block is fixedly connected to the side surface of the buffer block, a touch switch is fixedly connected to the inner surface of the opening groove, and an airbag is provided on the side surface of the buffer block.

[0007] A fixing device, the fixing device includes an L-shaped buckle, a card box, a sloped block, a slide bar, a limiting ring, a pressing block, a second spring, a partition and a connecting seat, the outer surface of the L-shaped buckle is slidably connected to the card box, the outer surface of the sloped block is slidably connected to the slide bar, the outer surface of the slide bar is fixedly connected to the limiting ring, the end of the slide bar away from the sloped block is fixedly connected to the pressing block, the end of the second spring away from the L-shaped buckle is fixedly connected to the partition, and the side surface of the card box is movably connected to the connecting seat.

[0008] According to the electric door anti-pinch device, the inner surface of the connecting seat is provided with a card slot, and the inner surface of the card slot is adapted to the L-shaped buckle, so as to facilitate the installation and removal of the airbag.

[0009] According to the electric door anti-pinch device, the number of the sliders is four and they are distributed in a rectangular array, and the outer surface of the slider is slidably connected to the door frame to facilitate the movement of the sliding door.

[0010] According to the electric door anti-pinch device, both ends of the guide rod are fixedly connected to the door frame to improve the stability of the sliding door when it moves.

[0011] According to the electric door anti-pinch device, the touch switch is electrically connected to the double-headed motor for controlling the start-up of the double-headed motor, and the double-headed motor is electrically connected to an external power supply.

[0012] According to the electric door anti-pinch device, the inner surface of the opening groove is matched with the buffer block, and the outer surface of the buffer block is fixedly connected to the card box.

[0013] According to the electric door anti-pinch device, the outer surface of the airbag is fixedly connected to the connecting seat, and the end of the second spring away from the partition is fixedly connected to the L-shaped buckle.

[0014] According to the electric door anti-pinch device, the number of the fixing devices is multiple, and the outer surface of the slide bar is slidably connected to the card box.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the overall structure of an anti-pinch device for electric doors of the utility model;

[0018] Figure 2 This is a cross-sectional view of the overall structure of an anti-pinch device for electric doors according to the utility model;

[0019] Figure 3 This is an internal cross-sectional view of a sliding door structure of an electric door anti-pinch device of the utility model;

[0020] Figure 4 for Figure 3 A schematic diagram of the structure enlargement at the center A;

[0021] Figure 5The utility model is a cross-sectional view of the fixing device structure of an electric door anti-pinch device.

[0022] Legend:

[0023] 1. Door frame; 2. Slide groove; 3. Double-head motor; 4. Lead screw; 5. Slider; 6. Guide rod; 7. Sliding door; 8. Opening groove; 9. First spring; 10. Buffer block; 11. Push block; 12. Airbag; 13. Fixing device; 14. L-shaped buckle; 15. Card box; 16. Inclined block; 17. Slide bar; 18. Limiting ring; 19. Pressing block; 20. Second spring; 21. Partition; 22. Connecting seat; 23. Card slot; 24. Touch switch. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-5 The utility model embodiment is an electric door anti-pinch device, which includes: a door frame 1, a slide groove 2 is arranged on the upper surface of the door frame 1, a double-headed motor 3 is fixedly connected to the inner surface of the slide groove 2, a lead screw 4 is fixedly connected to the output end of the double-headed motor 3, a slider 5 is threadedly connected to the outer surface of the lead screw 4, a guide rod 6 is slidably connected to the inner surface of the slider 5, a sliding door 7 is fixedly connected to the outer surface of the slider 5, an opening groove 8 is arranged on the side surface of the sliding door 7, a first spring 9 is fixedly connected to the inner surface of the opening groove 8, and the first spring 9 is away from the sliding door 7 One end of the door frame 1 is fixedly connected to a buffer block 10, a push block 11 is fixedly connected to the side surface of the buffer block 10, a touch switch 24 is fixedly connected to the inner surface of the opening groove 8, an airbag 12 is arranged on the side surface of the buffer block 10, there are four sliders 5 and they are distributed in a rectangular array, the outer surface of the slider 5 is slidably connected to the door frame 1, both ends of the guide rod 6 are fixedly connected to the door frame 1, the touch switch 24 is electrically connected to the double-headed motor 3, the double-headed motor 3 is electrically connected to the external power supply, and the inner surface of the opening groove 8 is adapted to the buffer block 10.

[0026] The fixing device 13 includes an L-shaped buckle 14, a card box 15, a slope block 16, a slide bar 17, a limit ring 18, a pressing block 19, a second spring 20, a partition 21 and a connecting seat 22. The outer surface of the L-shaped buckle 14 is slidably connected to the card box 15, the outer surface of the slope block 16 is slidably connected to the slide bar 17, the outer surface of the slide bar 17 is fixedly connected to the limit ring 18, the end of the slide bar 17 away from the slope block 16 is fixedly connected to the pressing block 19, and the second spring 20 is away from the L-shaped buckle 1 4 is fixedly connected to the partition 21, the side surface of the card box 15 is movably connected to the connecting seat 22, the inner surface of the connecting seat 22 is provided with a card slot 23, the inner surface of the card slot 23 is adapted to the L-shaped buckle 14, the outer surface of the buffer block 10 is fixedly connected to the card box 15, the outer surface of the airbag 12 is fixedly connected to the connecting seat 22, the end of the second spring 20 away from the partition 21 is fixedly connected to the L-shaped buckle 14, the number of the fixing devices 13 is multiple, and the outer surface of the slide bar 17 is slidably connected to the card box 15.

[0027] Working principle: When a pedestrian is suddenly caught in the process of closing the sliding door 7, the first spring 9 provides a buffer for the pedestrian's injured part at the first time. When the pedestrian cannot pull out the injured part in time, the airbag 12 can provide a second buffer for him. At the same time, because there is a pedestrian's clamping part between the two airbags 12, the first spring 9 will be compressed farther than the sliding door 7 in a normal closed state, thereby pushing the push block 11 to continue to move in the opening groove 8 until it contacts the touch switch 24, triggering the double-headed motor 3 to start in reverse, driving the lead screw 4 to drive the sliding doors 7 on both sides to move away from each other along the guide rod 6, thereby maximizing the protection. The sliding door 7 does not pose a risk of pinching pedestrians, and when the airbag 12 needs to be replaced, it is only necessary to press the pressing block 19 to drive the slide bar 17 to slide along the inclined surface of the inclined block 16, the second spring 20 is compressed, and the corresponding two L-shaped buckles 14 are driven to move toward each other, releasing the restriction on the card slot 23, and then the airbag 12 is pulled out to complete the disassembly. When installing, it is only necessary to align the card slot 23 on the new airbag 12 with the L-shaped buckle 14 and then release the pressing block 19. Under the restoring force of the second spring 20, the L-shaped buckle 14 rotates and snaps into the card slot 23 to complete the position fixation, which is simple and convenient. The above is a detailed description of the embodiments of the utility model in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the utility model.

Claims

1. An anti-pinch device for an electric door, characterized in that: include: A door frame (1), wherein a slide groove (2) is provided on the upper surface of the door frame (1), a double-headed motor (3) is fixedly connected to the inner surface of the slide groove (2), a lead screw (4) is fixedly connected to the output end of the double-headed motor (3), a slider (5) is threadedly connected to the outer surface of the lead screw (4), a guide rod (6) is slidably connected to the inner surface of the slider (5), a sliding door (7) is fixedly connected to the outer surface of the slider (5), an opening groove (8) is provided on the side surface of the sliding door (7), a first spring (9) is fixedly connected to the inner surface of the opening groove (8), a buffer block (10) is fixedly connected to the end of the first spring (9) away from the sliding door (7), a push block (11) is fixedly connected to the side surface of the buffer block (10), a touch switch (24) is fixedly connected to the inner surface of the opening groove (8), and an air bag (12) is provided on the side surface of the buffer block (10); A fixing device (13), the fixing device (13) comprising an L-shaped buckle (14), a card box (15), an inclined block (16), a slide bar (17), a limiting ring (18), a pressing block (19), a second spring (20), a partition (21) and a connecting seat (22), the outer surface of the L-shaped buckle (14) being slidably connected to the card box (15), the outer surface of the inclined block (16) being slidably connected to the slide bar (17), the outer surface of the slide bar (17) being fixedly connected to the limiting ring (18), one end of the slide bar (17) away from the inclined block (16) being fixedly connected to the pressing block (19), one end of the second spring (20) away from the L-shaped buckle (14) being fixedly connected to the partition (21), and the side surface of the card box (15) being movably connected to the connecting seat (22).

2. The anti-pinch device for electric door according to claim 1, characterized in that: The inner surface of the connecting seat (22) is provided with a clamping groove (23), and the inner surface of the clamping groove (23) is adapted to fit the L-shaped buckle (14).

3. The anti-pinch device for electric door according to claim 1, characterized in that: The number of the sliding blocks (5) is four and they are distributed in a rectangular array, and the outer surfaces of the sliding blocks (5) are slidably connected to the door frame (1).

4. The anti-pinch device for electric door according to claim 1, characterized in that: Both ends of the guide rod (6) are fixedly connected to the door frame (1).

5. The anti-pinch device for electric door according to claim 1, characterized in that: The touch switch (24) is electrically connected to the double-headed motor (3), and the double-headed motor (3) is electrically connected to an external power supply.

6. The anti-pinch device for electric door according to claim 1, characterized in that: The inner surface of the opening groove (8) is matched with the buffer block (10), and the outer surface of the buffer block (10) is fixedly connected to the card box (15).

7. The anti-pinch device for electric door according to claim 1, characterized in that: The outer surface of the airbag (12) is fixedly connected to the connecting seat (22), and one end of the second spring (20) away from the partition (21) is fixedly connected to the L-shaped buckle (14).

8. The anti-pinch device for electric door according to claim 1, characterized in that: The number of the fixing devices (13) is plural, and the outer surface of the sliding bar (17) is slidably connected to the card box (15).

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