Automatic sliding door

Abstract

The utility model discloses an automatic sliding door, comprising a slide rail, a motor and a plurality of door panels, the two ends of the door panels are slidably connected with the slide rail, the top of the door panel is provided with a strip groove, the bottom is provided with a strip convex ridge, the cross sections of the groove and the convex ridge are both semicircular, the groove of the door panel cooperates with the convex ridge of another adjacent door panel, an air bag is provided in the accommodating groove at the top of the groove, the air bag is communicated with an air pump and an electromagnetic exhaust valve, the slide rail is provided with a driving gear, the door panel is provided with a tooth groove matched with the driving gear, the driving gear is provided with a first switch and a second switch in parallel, the first switch and the second switch are electrically connected with the electromagnetic exhaust valve, the output shaft of the motor is connected with the driving gear through a torsion spring, and the output shaft is provided with a lever for toggling the first switch and the second switch. The utility model releases the gas in the air bag before the door panel moves upward or downward, reduces the closeness between the air bag and the door panel, greatly reduces the wear of the air bag, and improves the service life of the sliding door.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding doors, in particular to an automatic sliding door. Background Art

[0002] The sliding door of the cold storage plays an important role in the cold chain logistics industry due to its excellent thermal insulation performance and safety. It can not only ensure the quality and freshness of the goods in the cold storage, but also improve the efficiency of loading and unloading of goods and reduce operating costs. Several door panels of the sliding door slide up and down along the track to open or close the door opening. The door panels have good thermal insulation and windproof effects. A sealing structure, such as a sealing strip, is set between the door panels. The sealing structure can effectively prevent heat exchange and energy loss and maintain the temperature stability in the cold storage. However, when the door panels slide to the bend of the track, relative displacement occurs between the door panels, and the sealing structure is always in close contact with the door panels and cannot automatically adjust the tightness. The long-term displacement makes the sealing strip inevitably wear, thereby affecting the sealing between the door panels, resulting in a short service life of the sliding door. Utility Model Content

[0003] In view of the above-mentioned prior art, the utility model provides an automatic sliding door, which releases the gas in the airbag before the door panel moves upward or downward, reduces the tightness between the airbag and the door panel, greatly reduces the wear of the airbag, and increases the service life of the sliding door.

[0004] To achieve the above purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0005] An automatic sliding door comprises a slide rail, a motor and a plurality of door panels, wherein both ends of the door panels are slidably connected to the slide rail, a strip-shaped groove is provided on the top of the door panel, and a strip-shaped ridge is provided on the bottom, the cross-sections of the groove and the ridge are both semicircular, the groove of the door panel cooperates with the ridge of another adjacent door panel, the top of the groove is provided with a receiving groove and an air bag placed in the receiving groove, the air bag is connected to the air pump through an air pipe, the air pipe is provided with an electromagnetic exhaust valve, the slide rail is provided with a driving gear, the door panel is provided with a tooth groove cooperating with the driving gear, the driving gear is provided with a first switch and a second switch in parallel, the first switch and the second switch are electrically connected to the electromagnetic exhaust valve through a brush, the output shaft of the motor is connected to the driving gear through a torsion spring, the output shaft is provided with a lever for toggling the first switch and the second switch, and the motor is electrically connected to a third switch.

[0006] Furthermore, the door panel is provided with an air flow channel, one end of the air flow channel is connected to the airbag, and the other end is provided with a connector, and the connector is connected to the air pipe.

[0007] Furthermore, the driving gear is provided with a shaft sleeve, the output shaft of the motor penetrates into the shaft sleeve, one end of the torsion spring is connected to the output shaft of the motor, and the other end is connected to the shaft sleeve.

[0008] Furthermore, the lever is L-shaped, one section of the lever is connected to the side of the output shaft, and the other end of the lever is used to toggle the first switch and the second switch. The first switch and the second switch are push switches, and the driving gear is provided with a first limit protrusion. After the lever pushes the first switch or the second switch to close, it conflicts with the first limit protrusion.

[0009] Furthermore, the door panel located at the bottom or the top is provided with a second limit protrusion, and the sliding rail is provided with a fourth switch. When the automatic sliding door reaches a preset distance, the second limit protrusion toggles the fourth switch, and the fourth switch is a push-type delay switch, and the fourth switch is electrically connected to the air pump.

[0010] Furthermore, the slide rail includes a vertical slide rail, a horizontal slide rail and a curved slide rail, the horizontal slide rail, the curved slide rail and the vertical slide rail are connected in series in sequence, the slide grooves of the horizontal slide rail, the curved slide rail and the vertical slide rail are T-shaped, and the end of the door panel is T-shaped.

[0011] Furthermore, the edge of the door panel has a smooth transition.

[0012] The utility model has the beneficial effect that when the motor rotates, the gear is driven to rotate by the torsion spring. Since the gear and the tooth groove cooperate with each other, the door panel moves up or down under the drive of the gear. Since the output shaft of the motor is connected to the driving gear through the torsion spring, the driving gear is driven to rotate after the output shaft of the motor rotates by a preset angle. The driving gear is provided with a first switch and a second switch in parallel, and the output shaft is provided with a lever for toggling the first switch and the second switch. Before the gear rotates, the lever first toggles the first switch or the second switch, so that the electromagnetic exhaust valve is opened and the compressed gas in the airbag is discharged. Before the door panel moves up and down, the electromagnetic exhaust valve is used to exhaust gas first, so as to avoid friction damage between the airbag and the door panel. After the door panel moves downward to close the door, gas is filled into the airbag through the air pump, and the airbag expands to close the gap between the door panels, thereby playing a role of heat insulation. The utility model can automatically release the gas in the airbag before the door is opened and closed, so as to avoid friction damage between the airbag and the door panel and improve the service life of the sliding door. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of an automatic sliding door in an embodiment of the present application;

[0014] Figure 2 This is a front structural schematic diagram of an automatic sliding door in an embodiment of the present application;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of a door panel in an embodiment of the present application;

[0016] Description of Figure Numbers:

[0017] 1. Slide rail; 2. Motor; 3. Door panel; 4. Groove; 5. Ridge; 6. Accommodation groove; 7. Airbag; 8. Air pipe; 9. Air pump; 10. Solenoid exhaust valve; 11. Driving gear; 12. Tooth groove; 13. First switch; 14. Second switch; 15. Torsion spring; 16. Push rod; 17. Third switch; 18. Air flow channel; 19. Connector; 20. Bushing; 21. First limit protrusion; 22. Second limit protrusion; 23. Fourth switch; 24. Vertical slide rail; 25. Horizontal slide rail; 26. Arc slide rail. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the utility model. The terms used herein in the specification of the utility model are only for the purpose of describing specific embodiments and are not intended to limit the utility model. In the following description, the expression "some embodiments" is involved, which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0019] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "inside", "outside", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0020] Example 1

[0021] Please refer to the attached Figures 1 to 3The present application provides an automatic sliding door, including a slide rail 1, a motor 2 and a plurality of door panels 3, wherein both ends of the door panels 3 are slidably connected to the slide rail 1, a strip-shaped groove 4 is provided on the top of the door panel 3, and a strip-shaped convex ridge 5 is provided on the bottom, wherein the cross sections of the groove 4 and the convex ridge 5 are both semicircular, and the groove 4 of the door panel 3 cooperates with the convex ridge 5 of another adjacent door panel 3, and when one door panel 3 moves, the cooperation between the convex ridge 5 and the groove 4 drives the remaining door panels 3 to move, and a receiving groove 6 and an air bag 7 placed in the receiving groove 6 are provided on the top of the groove 4, and the air bag 7 is passed through an air pipe 8 is connected to the air pump 9, the air pipe 8 is provided with an electromagnetic exhaust valve 10, the slide rail 1 is provided with a driving gear 11, the door panel 3 is provided with a tooth groove 12 matched with the driving gear 11, the driving gear 11 is provided with a first switch 13 and a second switch 14 in parallel, the first switch 13 and the second switch 14 are electrically connected to the electromagnetic exhaust valve 10 through a brush, the output shaft of the motor 2 is connected to the driving gear 11 through a torsion spring 15, the output shaft is provided with a lever 16 for toggling the first switch 13 and the second switch 14, and the motor 2 is electrically connected to a third switch 17. The forward and reverse rotation of the motor 2 is controlled by the third switch 17. When the motor 2 rotates forward, it drives the door panel 3 to move upward to open the door, and when it rotates reversely, it drives the door panel 3 to move downward to close the door. Specifically, when the motor 2 rotates, the gear is driven to rotate through the torsion spring 15. Since the gear and the tooth groove 12 cooperate with each other, the door panel 3 moves upward or downward under the drive of the gear. Since the output shaft of the motor 2 is connected to the driving gear 11 through the torsion spring 15, the output shaft of the motor 2 drives the driving gear 11 to rotate after rotating by a preset angle. The driving gear 11 is provided with a first switch 13 and a second switch 14 in parallel, and the output shaft is provided with a lever 16 for toggling the first switch 13 and the second switch 14. Before the gear rotates, the lever 16 first toggles the first switch 13 or the second switch 14, so that the electromagnetic exhaust valve 10 is opened and the compressed gas in the airbag 7 is discharged. Before the door panel 3 moves up and down, the air is exhausted through the electromagnetic exhaust valve 10 to avoid friction damage between the airbag 7 and the door panel 3. After the door panel 3 moves downward to close the door, the air is filled into the airbag 7 through the air pump 9, and the airbag 7 expands to close the gap between the door panels 3, thereby playing a role of heat insulation. The utility model can automatically release the gas in the airbag 7 before the door is opened and closed, thereby avoiding friction damage between the airbag 7 and the door panel 3 and improving the service life of the sliding door.

[0022] Specifically, the door panel 3 is provided with an airflow channel 18, one end of the airflow channel 18 is connected to the airbag 7, and the other end is provided with a connector 19, and the connector 19 is connected to the air pipe 8. When inflating, compressed air enters the airbag 7 from the air pump 9, the air pipe 8, the connector 19 and the airflow channel 18, and when deflated, the compressed gas in the airbag 7 is discharged from the airflow channel 18, the connector 19, the air pipe 8 and the exhaust valve. The connection with the air pipe 8 through the connector 19 makes the operation of the connecting pipeline more convenient.

[0023] Specifically, the driving gear 11 is provided with a sleeve 20, the output shaft of the motor 2 penetrates into the sleeve 20, one end of the torsion spring 15 is connected to the output shaft of the motor 2, and the other end is connected to the sleeve 20. The transmission stability between the motor 2 and the driving gear 11 is improved.

[0024] Specifically, the lever 16 is L-shaped, one section of the lever 16 is connected to the side of the output shaft, and the other end of the lever 16 is used to toggle the first switch 13 and the second switch 14. The first switch 13 and the second switch 14 are push switches. The driving gear 11 is provided with a first limiting protrusion 21. After the lever 16 pushes the first switch 13 or the second switch 14 to close, it contacts the first limiting protrusion 21. In a natural state, the lever 16 is located between the first switch 13 and the second switch 14. When the motor 2 rotates forward, the lever 16 rotates to push the first switch 13. After the first switch 13 is closed, the lever 16 rotates to the position of the first limiting protrusion 21 to prevent the lever 16 from continuing to rotate and damaging the first switch 13. When the motor 2 rotates backward, the lever 16 pushes the second switch 14. After the second switch 14 is closed, the lever 16 rotates to the position of the first limiting protrusion 21 to prevent the lever 16 from continuing to rotate and damaging the second switch 14.

[0025] Example 2

[0026] Please refer to the attached Figures 1 to 3 The difference between this embodiment and the first embodiment is that the door panel 3 located at the bottom or the top is provided with a second limiting protrusion 22, and the slide rail 1 is provided with a fourth switch 23. When the automatic sliding door is down to a preset distance, the second limiting protrusion 22 toggles the fourth switch 23. The fourth switch 23 is a push-type delay switch, and the fourth switch 23 is electrically connected to the air pump 9. When the sliding door is closed, the door panel 3 moves to the bottom, and the second lower protrusion at this time pushes the fourth switch 23, so that the air pump 9 works for a preset time and fills the compressed gas into the airbag 7. The utility model can automatically discharge the compressed gas in the airbag 7 when the sliding door is opened or closed, thereby preventing the airbag 7 from being worn. After the sliding door is closed, the airbag 7 is automatically inflated by the air pump 9, and the airbag 7 expands to close the gap between the door panels 3, thereby playing a role in heat insulation.

[0027] Specifically, the slide rail 1 includes a vertical slide rail 24, a horizontal slide rail 25 and an arcuate slide rail 26, the horizontal slide rail 25, the arcuate slide rail 26 and the vertical slide rail 24 are sequentially connected in series, the slide grooves of the horizontal slide rail 25, the arcuate slide rail 26 and the vertical slide rail 24 are T-shaped, and the end of the door panel 3 is T-shaped. The T-shaped structure can improve the connection stability between the door panel 3 and the slide rail 1, the door panel 3 moves up and down along the vertical slide rail 24 to open or close the door opening, and the upwardly moving door panel 3 moves to the arcuate slide rail 26 and then transitions to the horizontal slide rail 25, which can increase the height of the door opening as much as possible within the limited height of the warehouse.

[0028] Specifically, the edge of the door panel 3 has a smooth transition, which can prevent cuts.

[0029] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. The protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An automatic sliding door, characterized in that: The invention comprises a slide rail (1), a motor (2) and a plurality of door panels (3), wherein the two ends of the door panels (3) are slidably connected to the slide rail (1), the top of the door panel (3) is provided with a strip-shaped groove (4), and the bottom is provided with a strip-shaped ridge (5), the cross-sections of the groove (4) and the ridge (5) are both semicircular, the groove (4) of the door panel (3) and the ridge (5) of another adjacent door panel (3) are mutually matched, the top of the groove (4) is provided with a receiving groove (6) and an air bag (7) placed in the receiving groove (6), the air bag (7) is connected to an air pump (9) through an air pipe (8), and the air pipe (8) is provided with an electromagnetic exhaust valve ( 10), the slide rail (1) is provided with a driving gear (11), the door panel (3) is provided with a tooth groove (12) matched with the driving gear (11), the driving gear (11) is provided with a first switch (13) and a second switch (14) connected in parallel, the first switch (13) and the second switch (14) are electrically connected to the electromagnetic exhaust valve (10) through a brush, the output shaft of the motor (2) is connected to the driving gear (11) through a torsion spring (15), the output shaft is provided with a lever (16) for toggling the first switch (13) and the second switch (14), and the motor (2) is electrically connected to a third switch (17).

2. The automatic sliding door according to claim 1, characterized in that: The door panel (3) is provided with an air flow channel (18), one end of the air flow channel (18) is connected to the air bag (7), and the other end is provided with a connector (19), and the connector (19) is connected to the air pipe (8).

3. The automatic sliding door according to claim 1, characterized in that: The driving gear (11) is provided with a shaft sleeve (20), the output shaft of the motor (2) penetrates into the shaft sleeve (20), one end of the torsion spring (15) is connected to the output shaft of the motor (2), and the other end is connected to the shaft sleeve (20).

4. The automatic sliding door according to claim 1, characterized in that: The lever (16) is L-shaped, one end of the lever (16) is connected to the side of the output shaft, and the other end of the lever (16) is used to toggle the first switch (13) and the second switch (14), the first switch (13) and the second switch (14) are push switches, and the driving gear (11) is provided with a first limiting protrusion (21), and the lever (16) contacts the first limiting protrusion (21) after pushing the first switch (13) or the second switch (14) to close.

5. The automatic sliding door according to claim 1, characterized in that: The door panel (3) located at the bottom or the top is provided with a second limit protrusion (22), and the slide rail (1) is provided with a fourth switch (23). When the automatic sliding door is moved down to a preset distance, the second limit protrusion (22) switches the fourth switch (23). The fourth switch (23) is a push-type delay switch, and the fourth switch (23) is electrically connected to the air pump (9).

6. The automatic sliding door according to claim 1, characterized in that: The slide rail (1) comprises a vertical slide rail (24), a horizontal slide rail (25) and an arcuate slide rail (26); the horizontal slide rail (25), the arcuate slide rail (26) and the vertical slide rail (24) are connected in series in sequence; the slide grooves of the horizontal slide rail (25), the arcuate slide rail (26) and the vertical slide rail (24) are T-shaped; and the end of the door panel (3) is T-shaped.

7. The automatic sliding door according to claim 1, characterized in that: The edge of the door panel (3) has a smooth transition.

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