Automatic door structure for a beverage machine

Abstract

The utility model discloses a kind of automatic door structures for beverage machine, including cabinet, door frame is fixed in the cabinet, it is characterized in that, the bottom of the door frame is provided with anti-pinch hand assembly, the rear side of the door frame is provided with the moving door moving up and down, the moving door includes first plate and second plate, the first plate is set to the rear side of the door frame, the rear side of the first plate is elastically provided with the second plate, which is telescopic and moves forward and backward, lifting and lowering assembly is provided in the cabinet, which drives the first plate and baffle to move upward, the left and right sides of the second plate and first plate are also provided with roller assembly, which rolls against the second plate, the upper and lower sides of the cabinet are also provided with groove assembly for clamping with roller assembly, the moving door can stably move up and down in the cabinet, and when the moving door moves to the upper and lower side limit position, it is clamped by clamping groove and the first roller, which can improve the locking ability at limit position.

Description

Technical Field

[0001] This utility model relates to the field of automatic door equipment technology, specifically an automatic door structure for a beverage machine. Background Technology

[0002] As beverage machines rapidly evolve towards full automation and unattended operation, their automatic door systems require frequent opening and closing within confined spaces. This necessitates both stable operation and safety features to prevent accidental pinching by young users. Current technologies generally employ synchronous belts or lead screws to drive the door's upward and downward movement. However, due to structural limitations, these methods suffer from the following shortcomings: First, when the door reaches its upper or lower limits, electronic limit switches provide the only electronic stop, lacking physical locking. Second, the guide mechanism often uses single-point or single-sided rollers, which are prone to swaying during operation. Third, if users, especially children, place their hands under the door frame during descent, there is a risk of pinching. Therefore, there is an urgent need for a miniaturized automatic door device that integrates both electronic and physical limit switches, features flexible guidance and self-locking, and provides anti-pinch protection to meet the comprehensive safety and stability requirements of the next generation of beverage machines. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automatic door structure for beverage machines, which can solve the problems in the prior art.

[0004] This utility model is achieved through the following technical solution: An automatic door structure for a beverage machine includes a housing, with a door frame fixed inside the housing. The door frame has an anti-pinch component at its bottom, and a movable door that moves vertically on its rear side. The movable door includes a first plate and a second plate. The first plate is located on the rear side of the door frame, and a second plate that moves forward and backward is elastically arranged on the rear side of the first plate. A lifting and lowering component that drives the first plate and a baffle plate upwards is provided inside the housing. Roller assemblies that roll against the second plate are also provided on the left and right sides of the second and first plates. Groove assemblies for engaging with the roller assemblies are also provided on the upper and lower sides of the housing.

[0005] A further technical solution includes an anti-pinch component comprising a rotating shaft disposed inside the door frame, the door frame extending through the front and rear, guide grooves disposed within the left and right end walls of the door frame, a flap fixed to the outer surface of the rotating shaft, first side plates fixed to the left and right sides of the flap, the first side plates being slidably connected to the guide grooves, a mounting plate fixed inside the door frame, a tension spring elastically connecting the mounting plate and the first side plates, one end of the tension spring being sleeved on the mounting plate, and the other end of the tension spring being sleeved on the first side plates, thereby pulling the first side plates close to the mounting plate, and a bottom proximity switch fixed at the bottom of the door frame, the bottom proximity switch being disposed on the front side of the sliding door.

[0006] A further technical solution includes a lifting and lowering assembly comprising a synchronous belt pulley power structure disposed on the rear end face of the housing, a clamping plate fixed to the front side of the first plate, the clamping plate being fixed to the synchronous belt structure in the synchronous belt pulley power structure, and a limiting structure being provided on the rear side of the housing to limit the synchronous belt pulley power structure.

[0007] A further technical solution includes a synchronous pulley power structure comprising a driven pulley rotatably disposed on the rear side of the housing, a housing fixed to the rear side of the housing, the housing being rotatably connected to the driven pulley, a mounting box fixed to the top of the rear side of the housing, a geared motor fixed to one side of the mounting box, a driving pulley fixed to the output shaft of the geared motor, a synchronous belt wound around the outer surfaces of the driving pulley and the driven pulley, the synchronous belt providing a power connection between the driven pulley and the driving pulley, and the synchronous belt being connected and fixed to the clamping plate.

[0008] A further technical solution includes a baffle fixed to the front side of the first plate, and a travel proximity switch fixed to the upper and lower ends of the rear side of the housing.

[0009] A further technical solution includes a roller assembly comprising a third plate fixed around the perimeter of the first plate, an elastic structure between the third plate and the second plate allowing the second plate to elastically expand and contract relative to the first plate, a second roller rotatably mounted inside the third plate, a plurality of third rollers rotatably mounted on the front side of the first plate, and a plurality of first rollers rotatably mounted on the left and right sides of the second plate, the housing comprising a flanged edge plate, a second side plate, and a back plate, wherein the first rollers roll against the flanged edge plate, the second rollers roll against the second side plate, and the third rollers roll against the back plate.

[0010] In a further technical solution, the first roller, the second roller, and the third roller can be arranged in two or more rows, one above the other.

[0011] In a further technical solution, the second side plate, the flange plate, and the back plate are arranged vertically, and the flange plate is arranged parallel to the back plate.

[0012] A further technical solution includes an elastic structure comprising a sliding hole disposed within the third plate, a plurality of guide posts fixed to the front side of the second plate, the guide posts sliding through the sliding hole, and a spring sleeved on the outer surface of the guide posts, the spring elastically connecting the second plate and the third plate.

[0013] A further technical solution is that the groove assembly includes multiple slots fixed inside the flange plate. The slots are located on the upper and lower sides of the flange plate. When the movable door moves to the upper and lower limit positions, the first roller engages with the slots.

[0014] The beneficial effects of this utility model are as follows: First, during the up-and-down movement of the first plate and the second plate, the first roller rolls against the flange plate, the first plate rolls against the first side plate, and the third roller rolls against the back plate, enabling the moving door to move stably up and down within the housing. When the moving door moves to the upper and lower limit positions, it engages with the first roller through a slot, improving the locking capability at the limit position. If the lifting and lowering assembly reverses its movement, the second plate, elastically connected to the third plate and the first plate through guide posts, springs, and sliding holes, will press the second plate and the first roller towards the first plate and the third plate, causing the first roller to disengage from the slot, facilitating movement from the limit position. During operation, the spring is compressed, reducing running friction.

[0015] Second, regarding the anti-pinch component, it is designed for young people who may place their hands at the bottom of the door frame. Since the flap and the first side plate are elastically connected to the mounting plate via a tension spring, the flap is always away from the bottom proximity switch. If a young person places their hand on the flap, the flap and the first side plate will swing along the guide groove, causing the flap to trigger the bottom proximity switch. This will cause the lifting and lowering component to move the sliding door upward, thus preventing the hand from being pinched.

[0016] Third, the limiting structure limits the vertical movement of the lifting and lowering components from an electronic limiting perspective. The structural design of the groove component, the first roller, the second plate, the guide post, the spring, the sliding hole, the third plate, and the first plate allows the sliding door to be physically limited when it moves to its extreme position, so as to prevent the sliding door from shaking.

[0017] Fourth, the design with multiple rollers is more cost-effective than using lead screws or linear guides; Attached Figure Description

[0018] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of an automatic door for a beverage machine according to the present invention; Figure 2 for Figure 1 Schematic diagram of the rear structure of the equipment; Figure 3 for Figure 2 A schematic diagram of the structure after the sliding door moves upward; Figure 4 for Figure 2 A three-dimensional structural diagram of the equipment in the middle; Figure 5 for Figure 4 A schematic diagram at point A in the middle; Figure 6 for Figure 4 A schematic diagram of the structure of the equipment from below; Figure 7 for Figure 6 A schematic diagram at point B in the middle; Figure 8 for Figure 4 A top-view diagram of the equipment in the middle; Figure 9 for Figure 8 A schematic diagram at point C in the middle; Figure 10 for Figure 8 A schematic diagram of the other side of the equipment; Figure 11 for Figure 10 A schematic diagram at point D in the middle; Figure 12 for Figure 1 A schematic diagram of the vertical cross-sectional structure of the equipment; Figure 13 for Figure 12 A schematic diagram at point E in the middle; Figure 14 for Figure 12 A schematic diagram at point F in the middle; In the diagram, the components are: sliding door 11, housing 12, flange plate 121, second side plate 122, back plate 123, door frame 13, synchronous belt 14, driven pulley 15, clamping plate 16, mounting box 17, driving pulley 18, geared motor 19, second plate 22, first plate 23, baffle 24, guide post 26, spring 27, slot 28, first roller 29, sliding hole 31, third plate 32, second roller 33, third roller 34, travel proximity switch 41, guide groove 42, flap 43, first side plate 44, rotating shaft 45, tension spring 47, mounting plate 48, and bottom proximity switch 49. Detailed Implementation

[0020] like Figures 1-14 As shown, this utility model will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1The automatic door structure for a beverage machine of this utility model has the same vertical, horizontal, front and back directions in its projection relationship. It includes a housing 12, a door frame 13 fixed inside the housing 12, an anti-pinch component at the bottom of the door frame 13, and a movable door 11 that moves up and down on the rear side of the door frame 13. The movable door 11 includes a first plate 23 and a second plate 22. The first plate 23 is located on the rear side of the door frame 13, and the second plate 22 that moves back and forth is elastically arranged on the rear side of the first plate 23. A lifting and lowering component that drives the first plate 23 and the baffle 24 to move upward is provided inside the housing 12. Roller components that roll against the second plate 22 are also provided on the left and right sides of the second plate 22 and the first plate 23. Groove components for engaging with the roller components are also provided on the upper and lower sides of the housing 12.

[0021] Advantageously, the anti-pinch component includes a rotating shaft 45 rotatably disposed inside the door frame 13, which extends through the door frame 13. Guide grooves 42 are provided inside the left and right end walls of the door frame 13. A flap 43 is fixed to the outer surface of the rotating shaft 45. First side plates 44 are fixed to the left and right sides of the flap 43, and the first side plates 44 are slidably connected to the guide grooves 42. A mounting plate 48 is fixed inside the door frame 13. A tension spring 47 elastically connects the mounting plate 48 and the first side plates 44. One end of the tension spring 47 is sleeved on the mounting plate 48, and the other end is sleeved on the first side plates 44, causing the first side plates 44 to be pulled taut and close to the mounting plate 48. A bottom proximity switch 49 is fixed at the bottom of the frame 13. The bottom proximity switch 49 is located on the front side of the sliding door 11. The bottom proximity switch 49 is electrically connected to the controller, and the controller is electrically connected to the lifting and lowering assembly. When the lifting and lowering assembly drives the sliding door 11 to descend, when a person presses their hand on the flip plate 43, the flip plate 43 rotates around the pivot 45 and triggers the bottom proximity switch 49. The bottom proximity switch 49 feeds back an electrical signal to the controller, causing the controller to control the lifting and lowering assembly to drive the sliding door 11 to move upward, so as to prevent the sliding door 11 from pressing the person's hand to the bottom of the door frame 13 and causing a hand pinching phenomenon.

[0022] Advantageously, the lifting and lowering assembly includes a synchronous belt pulley power structure disposed on the rear end face of the housing 12, a clamping plate 16 is fixed on the front side of the first plate 23, the clamping plate 16 is fixed to the synchronous belt structure in the synchronous belt pulley power structure, and a limiting structure is also provided on the rear side of the housing 12 to limit the synchronous belt pulley power structure.

[0023] Advantageously, the synchronous pulley power structure includes a driven pulley 15 rotatably disposed on the rear side of the housing 12. A housing is fixed to the rear side of the housing 12, and the housing is rotatably connected to the driven pulley 15. A mounting box 17 is fixed to the top of the rear side of the housing 12. A geared motor 19 is fixed to one side of the mounting box 17. A driving pulley 18 is fixed on the output shaft of the geared motor 19. A synchronous belt 14 is wound around the outer surfaces of the driving pulley 18 and the driven pulley 15. The synchronous belt 14 is poweredly connected to the driven pulley 15 and the driving pulley 18. The synchronous belt 14 is connected and fixed to the clamping plate 16. The geared motor 19 is electrically connected to the controller to start and stop the lifting and lowering assembly.

[0024] Advantageously, the limiting structure includes a baffle 24 fixed to the front side of the first plate 23, and a travel proximity switch 41 fixed at the upper and lower ends of the rear side of the housing 12. When the baffle 24 contacts the lower travel proximity switch 41, the sliding door 11 moves to the lowest position and completely closes the door frame 13. When the baffle 24 contacts the upper travel proximity switch 41, the sliding door 11 moves to the highest position and opens the door frame 13.

[0025] Advantageously, the roller assembly includes a third plate 32 fixed around the first plate 23. An elastic structure is provided between the third plate 32 and the second plate 22 to allow the second plate 22 to elastically expand and contract relative to the first plate 23. A second roller 33 is rotatably arranged inside the third plate 32. Multiple third rollers 34 are rotatably arranged on the front side of the first plate 23. Multiple first rollers 29 are rotatably arranged on the left and right sides of the second plate 22. Two or more first rollers 29, second rollers 33 and third rollers 34 can be arranged vertically. The housing 12 includes a flange plate 121, a second side plate 122 and a back plate 123. The second side plate 122 is perpendicular to the flange plate 121 and the back plate 123. The flange plate 121 and the back plate 123 are parallel. The first roller 29 rolls against the flange plate 121, the second roller 33 rolls against the second side plate 122, and the third roller 34 rolls against the back plate 123.

[0026] Advantageously, the elastic structure includes a sliding hole 31 disposed in the third plate 32, a plurality of guide posts 26 fixed on the front side of the second plate 22, the guide posts 26 sliding through the sliding hole 31, and a spring 27 sleeved on the outer surface of the guide posts 26, the spring 27 elastically connecting the second plate 22 and the third plate 32.

[0027] Advantageously, the groove assembly includes multiple slots 28 fixed inside the flange plate 121. The slots 28 are located on the upper and lower sides of the flange plate 121. When the sliding door 11 moves to the upper and lower limit positions, the first roller 29 is engaged in the slot 28 under the elastic action of the spring 27 to maintain a certain limiting effect in the limit position.

[0028] Beneficially, lights are also provided on the left and right sides inside the door frame 13. When the sliding door 11 is opened, the lights on both sides will automatically turn on for lighting and mosquito repellency. When the sliding door 11 is closed, the lights on both sides will automatically turn off to save electricity. Specifically, it also includes a controller, and the lights have light switches. The light switches are electrically connected to the controller, and the controller is also electrically connected to the lifting and lowering components to achieve linkage between the two.

[0029] When the device is in operation, the lifting and lowering assembly moves the sliding door 11 upward to open the door frame 13. When the baffle 24 contacts the upper limit proximity switch 41, the lifting and lowering assembly stops working. When closing the sliding door 11 to the door frame 13, the lifting and lowering assembly moves the sliding door 11 downward to close the door frame 13. When the baffle 24 contacts the lower limit proximity switch 41, the lifting and lowering assembly stops working. During this process, if a person touches the anti-pinch component, the lifting and lowering assembly will stop its current action and move the sliding door 11 upward to prevent the sliding door 11 from pinching a person's hand.

[0030] When the lifting and lowering assembly is working, the driving pulley 18 is driven to rotate by the geared motor 19. The inner ring of the synchronous belt 14 is provided with teeth, which mesh with the teeth on the outer surface of the driving pulley 18, realizing the function of driving the driven pulley 15 to rotate by the driving pulley 18 and the synchronous belt 14. Through the up and down reciprocating lifting and lowering movement of the synchronous belt 14, the clamping plate 16, the first plate 23 and the baffle 24 are also driven to move up and down.

[0031] During the up-and-down movement of the first plate 23 and the second plate 22, the first roller 29 rolls against the flange plate 121, the first plate 23 rolls against the second side plate 122, and the third roller 34 rolls against the back plate 123, enabling the sliding door 11 to move stably up and down in the housing 12. When the sliding door 11 moves to the upper and lower limit positions, it engages with the first roller 29 through the slot 28, which improves the locking ability at the limit position. If the lifting and lowering assembly runs in the reverse direction, since the second plate 22 is elastically connected to the third plate 32 and the first plate 23 through the guide post 26, the spring 27 and the sliding hole 31, the second plate 22 and the first roller 29 will be squeezed towards the first plate 23 and the third plate 32, causing the first roller 29 to disengage from the slot 28, so that it can move away from the limit position.

[0032] The anti-pinch component is designed for young children who may place their hands on the bottom of the door frame 13. Since the flap 43 and the first side plate 44 are elastically connected to the mounting plate 48 via the tension spring 47, the flap 43 is always away from the bottom proximity switch 49. If a young child places their hand on the flap 43, the flap 43 and the first side plate 44 will swing along the guide groove 42, causing the flap 43 to trigger the bottom proximity switch 49, which will cause the lifting and lowering component to move the sliding door 11 upward to prevent the hand from being pinched.

[0033] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without creative effort should be included within the protection scope of this utility model; therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A structure of an automatic door for a beverage machine comprising a cabinet (12) in which a door frame (13) is fixed, characterized in that, The bottom of the door frame (13) is provided with an anti-pinch component. The rear side of the door frame (13) is provided with a movable door (11) that moves up and down. The movable door (11) includes a first plate (23) and a second plate (22). The first plate (23) is located on the rear side of the door frame (13). The rear side of the first plate (23) is elastically provided with a second plate (22) that moves back and forth. The housing (12) is provided with a lifting and lowering component that drives the first plate (23) and the baffle (24) to move upward. The left and right sides of the second plate (22) and the first plate (23) are also provided with roller components that roll against the second plate (22). The upper and lower sides of the housing (12) are also provided with groove components for engaging with the roller components.

2. The automatic door structure for a beverage machine according to claim 1, characterized in that: The anti-pinch assembly includes a rotating shaft (45) disposed inside the door frame (13). The door frame (13) extends through the door from front to back. Guide grooves (42) are provided inside the left and right end walls of the door frame (13). A flap (43) is fixed to the outer surface of the rotating shaft (45). First side plates (44) are fixed to the left and right sides of the flap (43). The first side plates (44) are slidably connected to the guide grooves (42). A mounting plate (48) is fixed inside the door frame (13). A tension spring (47) is elastically connected between the mounting plate (48) and the first side plate (44). One end of the tension spring (47) is sleeved on the mounting plate (48), and the other end of the tension spring (47) is sleeved on the first side plate (44), so that the first side plate (44) is pulled close to the mounting plate (48). A bottom proximity switch (49) is fixed at the bottom of the door frame (13), and the bottom proximity switch (49) is located on the front side of the sliding door (11).

3. The automatic door structure for a beverage machine according to claim 1, characterized in that: The lifting and lowering assembly includes a synchronous belt pulley power structure disposed on the rear end face of the housing (12). A clamping plate (16) is fixed on the front side of the first plate (23). The clamping plate (16) is fixed to the synchronous belt structure in the synchronous belt pulley power structure. A limiting structure is also provided on the rear side of the housing (12) to limit the synchronous belt pulley power structure.

4. The automatic door structure for a beverage machine according to claim 3, characterized in that: The synchronous pulley power structure includes a driven pulley (15) rotatably disposed on the rear side of the housing (12). A housing is fixed on the rear side of the housing (12), and the housing is rotatably connected to the driven pulley (15). A mounting box (17) is fixed on the top of the rear side of the housing (12). A geared motor (19) is fixed on one side of the mounting box (17). A driving pulley (18) is fixed on the output shaft of the geared motor (19). A synchronous belt (14) is wound around the outer surfaces of the driving pulley (18) and the driven pulley (15). The synchronous belt (14) powerly connects the driven pulley (15) and the driving pulley (18). The synchronous belt (14) is connected and fixed to the clamping plate (16).

5. The automatic door structure for a beverage machine according to claim 3, characterized in that: The limiting structure includes a baffle (24) fixed to the front side of the first plate (23), and a travel proximity switch (41) is fixed to the upper and lower ends of the rear side of the housing (12).

6. The automatic door structure for a beverage machine according to claim 1, characterized in that: The roller assembly includes a third plate (32) fixed around the first plate (23). An elastic structure is provided between the third plate (32) and the second plate (22) to allow the second plate (22) to stretch and contract elastically relative to the first plate (23). A second roller (33) is rotatably provided inside the third plate (32). A plurality of third rollers (34) are rotatably provided on the front side of the first plate (23). A plurality of first rollers (29) are rotatably provided on the left and right sides of the second plate (22). The housing (12) includes a flange plate (121), a second side plate (122), and a back plate (123). The first rollers (29) roll against the flange plate (121), the second rollers (33) roll against the second side plate (122), and the third rollers (34) roll against the back plate (123).

7. The automatic door structure for a beverage machine according to claim 6, characterized in that: The first roller (29), the second roller (33) and the third roller (34) can be arranged in two or more rows.

8. The automatic door structure for a beverage machine according to claim 6, characterized in that: The second side plate (122), the flange plate (121), and the back plate (123) are arranged vertically, and the flange plate (121) and the back plate (123) are arranged parallel to each other.

9. The automatic door structure for a beverage machine according to claim 6, characterized in that: The elastic structure includes a sliding hole (31) disposed in the third plate (32), and a plurality of guide posts (26) are fixed on the front side of the second plate (22). The guide posts (26) slide through the sliding hole (31), and a spring (27) is sleeved on the outer surface of the guide posts (26). The spring (27) elastically connects the second plate (22) and the third plate (32).

10. The automatic door structure for a beverage machine according to claim 6, characterized in that: The groove assembly includes multiple slots (28) fixed inside the flange plate (121). The slots (28) are located on the upper and lower sides of the flange plate (121). When the movable door (11) moves to the upper and lower limit positions, the first roller (29) engages with the slot (28).

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