A super large 4-fold freight elevator door and door machine system

Abstract

The present invention discloses an extra-large 4-fold freight elevator door and door machine system, which relates to the technical field of freight elevator doors, including a door frame, a stable folding assembly, a sixth door and a second door, the inner wall of the door frame is installed with a stable folding assembly, the outer wall of the stable folding assembly is connected to the top of the sixth door, the outer wall of the sixth door is provided with a second opening, the inner wall of the second opening is penetrated by the second door, and the inner wall of the second door is installed with a buffer assembly. The present invention drives the second slide cylinder to move by installing a support block, and the second slide cylinder moves to move the second door to a suitable distance. At this time, the sixth power rod moves to drive the sixth connection block to move, and the sixth connection block moves through the sixth opening to drive the sixth door to move. After the sixth door moves, the freight elevator door is completely opened. When closing the door, the sixth door moves first and then the second power rod drives the second door to move to close the freight elevator door, thereby realizing the function of stable opening of the freight elevator door and reducing usage failures.

Description

Technical Field

[0001] The present invention relates to the technical field of freight elevator doors, and in particular to an ultra-large 4-fold freight elevator door and a door machine system. Background Art

[0002] Traditional freight elevator doors usually open and close by curling the vertical axis. Although this design can realize the basic door opening and closing functions, it has certain limitations in terms of space utilization, energy consumption and maintenance costs. The biggest feature of the four-fold freight elevator door is its space efficiency. Because the door leaf can be folded, it takes up less space when opened, which makes it easier for goods to enter and exit the elevator, especially in environments with limited space. This design can maximize the use of space and improve the transportation efficiency of goods, but the existing super-large four-fold freight elevator door cannot be opened stably and has a high failure rate when used.

[0003] The defects of the existing super-large 4-fold freight elevator door are: 1. Patent document CN116750600A discloses a method for preventing a collision with a freight elevator door. "It includes a distance test probe, an alarm, an elevator door controller and an elevator control system. The distance test probe, the alarm and the elevator control system are electrically connected to the elevator door controller respectively, and include the following steps: the elevator control system self-checks whether it can operate normally; the distance test probe detects whether there is an object in front of the elevator door; the distance test probe detects whether the object moves toward the elevator door; the elevator control system detects whether the elevator door is open; the elevator door controller detects whether the object will hit the door; the elevator door controller detects whether the object will hit the door, and the elevator control system controls the alarm to sound an alarm. The above-mentioned method for preventing a collision with a freight elevator can identify the width and moving speed of an object in real time through the distance test probe, so as to determine whether the object will hit the elevator door. If it is identified that a collision with the door will occur, the alarm is activated to warn the person transporting the object, so that people stop moving the object, thereby effectively avoiding the occurrence of the problem of hitting the door." However, the existing super-large 4-fold freight elevator door cannot be stably opened and has a high failure rate when used; 2. Patent document CN105000454A discloses a cargo elevator door machine floor door system hanging plate anti-dropping device, "installed on the cargo elevator door machine floor door hanging plate, the floor door hanging plate is provided with a hanging plate wheel and a hanging plate guide rail for the hanging plate wheel to roll, the anti-dropping device includes two anti-dropping blocks with stepped shaft appearance and fastening bolts, the anti-dropping block is composed of three coaxial cylinders with increasing diameters, a threaded hole for the fastening bolt to pass through is opened in the center of the anti-dropping block, and two limit holes are provided on the floor door hanging plate, The end of the anti-drop block passes through the limit hole and is connected and fixed to the floor door hanging plate by fastening bolts. This cargo elevator door machine floor door system hanging plate anti-drop device installs two anti-drop blocks, so that when the hanging plate is subjected to positive or reverse impact, the anti-drop blocks can directly transfer the impact load to the guide rail to prevent the hanging plate from falling off the guide rail. It has a simple structure, is easy to manufacture and install and disassemble, saves costs, and is convenient and practical. However, the impact force of the existing super-large 4-fold cargo elevator door when it is closed cannot be reduced, and the cargo elevator door is easily damaged by impact when it is closed; 3. Patent document CN205241020U discloses an automatic safety door for a freight elevator, "including a safety door, the safety door is movably connected to a cylinder, the cylinder is connected to a solenoid valve, the solenoid valve is connected to a pressure reducing valve, the pressure reducing valve is connected to an air pump, the solenoid valve is also connected to a time relay, the time relay is respectively connected to a fuse and a travel switch, and the fuse is connected to a power supply. In view of the above technical scheme, the utility model can achieve the safety and stability of the elevator entrance, will not cause harm to personal safety due to negligence of the operator, and will not affect the normal operation of the elevator", but the existing super-large 4-fold freight elevator door cannot quickly and automatically apply lubricating oil, which increases wear and reduces the service life of the freight elevator door; 4. Patent document CN216235531U discloses an automatic door for passenger and freight elevators, "including a bottom rod, pillars are fixedly installed on the top surfaces of both ends of the bottom rod, top rods are fixedly installed on the tops of the pillars, automatic doors A are movably installed on the inner sides of the bottom rod and the top rod, and automatic door B is movably installed on one side of the automatic door A. The utility model cooperates with the automatic door side buckles and the automatic door side grooves, so that when the automatic doors A and B are closed, the automatic door side buckles can be inserted into the inside of the automatic door side grooves through the automatic door side buckles, so that the gap between the automatic doors A and B is reduced, thereby preventing the automatic doors from being opened to both sides manually, causing accidents. Through the cooperation of the spring arc buckle and the arc groove, when the automatic door side buckle is inserted into the inside of the automatic door side groove, the spring arc buckle can be inserted into the inside of the arc groove by compressing the spring, further improving the stability between the automatic doors A and B and preventing accidents", but the existing super-large 4-fold freight elevator doors cannot be stably opened in stages, reducing the safety of use. Summary of the invention

[0004] The object of the present invention is to provide an ultra-large 4-fold freight elevator door and door machine system to solve the technical problem of the high failure rate of the freight elevator door when it cannot be stably opened and used as mentioned in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an ultra-large folding freight elevator door, comprising a door frame, a stable folding assembly, a sixth door and a second door, the inner wall of the door frame is installed with a stable folding assembly, the outer wall of the stable folding assembly is connected to the top of the sixth door, the outer wall of the sixth door is provided with a second opening, the inner wall of the second opening is penetrated by the second door, the inner wall of the second door is installed with a buffer assembly, and the outer wall of the stable folding assembly is installed with an automatic lubrication assembly; The stable folding component includes a sixth power rod, a sixth support rod, a sixth slide cylinder, a sixth connecting block, and a sixth opening. The sixth power rod is located on the inner wall of the door frame, the sixth support rod is located on the inner wall of the door frame, the sixth slide cylinder is sleeved on the outer wall of the sixth support rod, the sixth connecting block is located on the outer wall of the sixth slide cylinder, and the output end of the sixth power rod is connected to the outer wall of the sixth connecting block. The sixth opening is opened at the bottom of the door frame, and a buffer block is installed at the bottom of the door frame. The stable folding component also includes a No. 2 power rod, a No. 2 support rod, a No. 2 slide cylinder, and a support block. The No. 2 power rod is located on the inner wall of the sixth door, and the output end of the No. 2 power rod is connected to the outer wall of the No. 2 door, the No. 2 support rod is located on the inner wall of the sixth door, the No. 2 slide cylinder is sleeved on the outer wall of the No. 2 support rod, the support block is located on the outer wall of the No. 2 slide cylinder, and the bottom of the No. 2 door is connected to the outer wall of the No. 2 slide cylinder, and the automatic lubrication component is located above the sixth slide cylinder.

[0006] Preferably, the second slide cylinder moves through the support of the second support rod, the second door moves through the second opening, and the sixth slide cylinder moves through the support of the sixth support rod.

[0007] Preferably, the buffer assembly includes a support box, a buffer ball, a sixth spring, a No. 3 support rod, a contact plate, a buffer pad, and a No. 4 port. The support box is located on the inner wall of the No. 2 door, the buffer ball is located on the inner wall of the support box, the No. 3 support rod is located on the inner wall of the support box, the outer wall of the No. 3 support rod is sleeved with a No. 3 slide cylinder, the buffer pad is located on the outer wall of the No. 2 door, and the No. 4 port is connected to the outer wall of the No. 2 door and the support box, a T-shaped rod is installed through the inner wall of the No. 4 port, and the outer wall of the T-shaped rod is connected to the outer wall of the No. 3 slide cylinder, the outer wall of the T-shaped rod is connected to the outer wall of the buffer ball, the outer wall of the T-shaped rod is installed with a contact plate, the sixth spring is located on the inner wall of the support box, and one end of the sixth spring is connected to the outer wall of the T-shaped rod, and the outer wall of the buffer ball is installed with an air pipe.

[0008] Preferably, the T-shaped rod moves with the support of the No. 4 mouth and the No. 3 slide, and the contact plate is located below the buffer pad.

[0009] Preferably, the automatic lubrication assembly includes an oil tank, an oil inlet head, a backflow plate, a No. 4 power rod, a T-shaped frame, a No. 2 spring, a sixth frame, and an oil brush. The oil tank is located at the outer wall of the sixth connecting block, the oil inlet head passes through the top of the oil tank, the backflow plate is located at the inner wall of the oil tank, an oil outlet pipe is installed through the bottom of the oil tank, the No. 4 power rod is located at the bottom of the oil tank, the T-shaped frame is located at the inner wall of the oil outlet pipe, the outer wall of the T-shaped frame is sleeved with a No. 5 slide cylinder, the outer wall of the No. 5 slide cylinder is installed with a first blocking ring, the inner wall of the oil outlet pipe is installed with a second blocking ring, the No. 2 spring is located at the top of the first blocking ring, and one end of the No. 2 spring is connected to the outer wall of the T-shaped frame, an oil brush is installed through the inner wall of the oil outlet pipe, the bottom of the first blocking ring is installed with the sixth frame, and the outer wall of the sixth frame is connected to the output end of the No. 4 power rod.

[0010] Preferably, the first blocking ring cooperates with the second blocking ring to seal the oil outlet pipe, and the first blocking ring moves with the support of the No. 5 slide cylinder.

[0011] Preferably, a detection component is installed on the inner wall of the sixth door, and a sealing plate is fixed to the top of the door frame by bolts, and the detection component is used to detect the distance to the second door.

[0012] Preferably, the detection component includes an infrared distance sensor and a processing component. The infrared distance sensor is installed on the inner wall of the sixth door, and the processing component is installed on the inner wall of the door frame. The processing component is electrically connected to the infrared distance sensor, and the processing component is electrically connected to the stable folding component. The infrared distance sensor is used to detect real-time distance data of the movement of door No. 2, and the processing component has built-in appropriate distance data of the movement of door No. 2. The appropriate distance is divided into a closest distance and a farthest distance. The closest distance is 10 cm and the farthest distance is 160 cm.

[0013] Preferably, the real-time distance data of the movement of door No. 2 is transmitted to a processing module, which compares the real-time distance data of the movement of door No. 2 with the appropriate distance data of the movement of door No. 2. The real-time distance data of the movement of door No. 2 is set to a suitable distance state when the real-time distance data of the movement of door No. 2 is the appropriate distance data of the movement of door No. 2, and is set to an inappropriate distance state when the real-time distance data of the movement of door No. 2 is not the appropriate distance data of the movement of door No. 2.

[0014] Preferably, the use of the door crane system includes the following steps: Step S1, when opening the door, the No. 2 power rod moves to drive the No. 2 door to move, the No. 2 door moves to drive the support block to move, the support block moves to drive the No. 2 slide cylinder to move, the No. 2 slide cylinder moves to move the No. 2 door to a suitable distance, then the sixth power rod moves to drive the sixth connection block to move, the sixth connection block moves through the sixth opening to drive the sixth door to move, the freight elevator door is completely opened after the sixth door moves, when closing the door, the sixth door moves first and then the No. 2 power rod drives the No. 2 door to move to close the freight elevator door, thus realizing the function of stable opening of the freight elevator door and reducing the use failure; Step S2, the closing of the No. 2 door causes the contact plate to move, and the contact plate moves to contact with the contact plate of another No. 2 door, so that the T-bar moves, and the movement of the T-bar drives the sixth spring to move, and the movement of the sixth spring causes the T-bar to drive the No. 3 slide cylinder to move, and the movement of the No. 3 slide cylinder causes the T-bar to drive the buffer ball to compress, and the buffer ball is compressed so that the air inside is discharged through the air pipe, thereby reducing the impact force when the No. 2 door is closed, and when the door is opened, the sixth spring rebounds and drives the T-bar to move, and the T-bar moves to pull up the buffer ball again, and the air enters the buffer ball through the air pipe, thereby reducing the impact force when the freight elevator door is closed and preventing the freight elevator door from being damaged by impact when it is closed; Step S3, the lubricating oil enters the oil tank through the oil inlet head, and the lubricating oil in the oil tank enters the oil outlet pipe through the backflow plate, the No. 4 power rod moves to drive the sixth frame to move, the sixth frame moves to drive the first blocking ring to move, the first blocking ring moves to drive the No. 5 slide cylinder to move, the No. 5 slide cylinder moves to make the first blocking ring drive the No. 2 spring to move, the No. 2 spring moves to make the first blocking ring move away from the second blocking ring, at this time, the oil outlet pipe is opened to make the lubricating oil flow to the surface of the oil brush, and the oil brush passes through one end of the sixth power rod to make it apply the lubricating oil on the surface of the sixth support rod, so as to realize the function of quickly and automatically applying the lubricating oil to the freight elevator door, reducing wear and improving the service life of the freight elevator door; Step S4, when the processing module detects a suitable distance state, the processing module controls the stable folding component to start, and after the stable folding component is started, controls the sixth door to open. When the processing module detects that it is not in a suitable distance state, the processing module controls the stable folding component to continue to move. During the continuous movement of the stable folding component, the infrared distance sensor continues to detect the real-time distance data of the second door until the processing module detects a suitable distance state, thereby realizing the function of graded opening of the freight elevator door to improve the safety of use.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is provided with a second power rod that moves when the door is opened to drive the second door to move, the second door moves to drive the support block to move, the support block moves to drive the second slide cylinder to move, the second slide cylinder moves to move the second door to a suitable distance, at this time the sixth power rod moves to drive the sixth connecting block to move, the sixth connecting block moves through the sixth opening to drive the sixth door to move, after the sixth door moves, the freight elevator door is completely opened, when closing the door, the sixth door moves first and then the second power rod drives the second door to move to close the freight elevator door, thus realizing the function of stable opening of the freight elevator door and reducing the use failure; 2. The present invention is installed with a contact plate driven by the closing of the No. 2 door, and the contact plate moves to contact with the contact plate of another No. 2 door, so that the T-shaped rod moves, and the movement of the T-shaped rod drives the sixth spring to move, and the movement of the sixth spring causes the T-shaped rod to drive the No. 3 slide cylinder to move, and the movement of the No. 3 slide cylinder causes the T-shaped rod to drive the buffer ball to compress, and the buffer ball is compressed so that the air inside is discharged through the air pipe, thereby reducing the impact force when the No. 2 door is closed, and when the door is opened, the sixth spring rebounds and drives the T-shaped rod to move, and the T-shaped rod moves to pull up the buffer ball again, and the air enters the buffer ball through the air pipe, thereby realizing the function of reducing the impact force when the freight elevator door is closed and preventing the freight elevator door from being damaged by impact when it is closed; 3. The present invention is equipped with a lubricating oil that enters the oil tank through an oil inlet head, and the lubricating oil in the oil tank enters the oil outlet pipe through a backflow plate. The movement of the fourth power rod drives the sixth frame to move, the movement of the sixth frame drives the first blocking ring to move, the movement of the first blocking ring drives the movement of the fifth slide cylinder, the movement of the fifth slide cylinder causes the first blocking ring to drive the second spring to move, the movement of the second spring causes the first blocking ring to move away from the second blocking ring, and at this time the oil outlet pipe is opened to allow the lubricating oil to flow to the surface of the oil brush, and the oil brush passes through one end of the sixth power rod to apply the lubricating oil on the surface of the sixth support rod, thereby realizing the function of quickly and automatically applying the lubricating oil to the freight elevator door to reduce wear and increase the service life of the freight elevator door; 4. The present invention is equipped with a processing module that controls the start of the stable folding component when it detects a suitable distance state. After the stable folding component is started, it controls the sixth door to open. When the processing module detects that the distance is not in a suitable state, the processing module controls the continuous movement of the stable folding component. During the continuous movement of the stable folding component, the infrared distance sensor continuously detects the real-time distance data of the second door until the processing module detects the suitable distance state, thereby realizing the function of stable hierarchical opening of the freight elevator door to improve the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a front structural schematic diagram of the present invention; Figure 3 is a schematic diagram of the sixth connection block structure of the present invention; Figure 4 For the present invention Figure 2 A structural diagram of ; Figure 5 It is a schematic diagram of the structure of the buffer ball of the present invention; Figure 6 It is a schematic diagram of the oil tank structure of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the B structure; Figure 8 For the present invention Figure 2 Schematic diagram of the C structure; Fig. 9 It is a schematic diagram of the door opening and closing process of the present invention.

[0017] In the figure: 1, door frame; 2, sixth door; 3, second door; 4, cover plate; 5, sixth power rod; 6, buffer block; 7, sixth opening; 8, sixth support rod; 9, sixth slide; 10, sixth connecting block; 11, second opening; 12, second support rod; 13, second slide; 14, support block; 15, support box; 16, buffer ball; 17, air pipe; 18, third support rod; 19, third slide; 20, first Six springs; 21. No. 4 mouth; 22. T-shaped rod; 23. Buffer pad; 24. Contact plate; 25. Oil tank; 26. Oil inlet head; 27. Backflow plate; 28. Oil outlet pipe; 29. ​​No. 4 power rod; 30. T-shaped frame; 31. No. 5 slide; 32. First blocking ring; 33. No. 2 spring; 34. Second blocking ring; 35. Sixth frame; 36. Oil brush; 37. Infrared distance sensor; 38. No. 2 power rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, it can be understood according to the specific situation.

[0021] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , an embodiment of the present invention: an ultra-large 4-fold freight elevator door, comprising a door frame 1, a stable folding assembly, a sixth door 2 and a second door 3, the inner wall of the door frame 1 is installed with a stable folding assembly, the outer wall of the stable folding assembly is connected to the top of the sixth door 2, the outer wall of the sixth door 2 is provided with a second opening 11, the inner wall of the second opening 11 is penetrated by the second door 3, the inner wall of the second door 3 is installed with a buffer assembly, the outer wall of the stable folding assembly is installed with an automatic lubrication assembly, the inner wall of the sixth door 2 is installed with a detection assembly, the top of the door frame 1 is fixed with a sealing plate 4 by bolts, and the detection assembly is used to detect the second The distance between the first door and the second door 3 is 1 / 2, and the stable folding assembly includes a power rod 5, a support rod 8, a slide cylinder 9, a connecting block 10, and an opening 7. The power rod 5 is located on the inner wall of the door frame 1, the support rod 8 is located on the inner wall of the door frame 1, the slide cylinder 9 is sleeved on the outer wall of the support rod 8, the connecting block 10 is located on the outer wall of the slide cylinder 9, and the output end of the power rod 5 is connected to the outer wall of the connecting block 10. The opening 7 is opened at the bottom of the door frame 1, and a buffer block 6 is installed at the bottom of the door frame 1. The stable folding assembly also includes a power rod 38, a support rod 12, and a slide cylinder 13. , support block 14, No. 2 power rod 38 is located on the inner wall of No. 1 door 2, and the output end of No. 2 power rod 38 is connected to the outer wall of No. 2 door 3, No. 2 support rod 12 is located on the inner wall of No. 1 door 2, No. 2 slide 13 is sleeved on the outer wall of No. 2 support rod 12, support block 14 is located on the outer wall of No. 2 slide 13, and the bottom of No. 2 door 3 is connected to the outer wall of No. 2 slide 13, automatic lubrication assembly is located above No. 1 slide 9, No. 2 slide 13 is moved by the support of No. 2 support rod 12, No. 2 door 3 is moved by No. 2 opening 11, No. 1 slide 9 is moved by the support of No. 1 support rod 8 When opening the door, the No. 2 power rod 38 moves to drive the No. 2 door 3 to move, the No. 2 door 3 moves to drive the support block 14 to move, the support block 14 moves to drive the No. 2 slide 13 to move, and the No. 2 slide 13 moves to make the No. 2 door 3 move to a suitable distance. At this time, the No. 1 power rod 5 moves to drive the No. 1 connecting block 10 to move, and the No. 1 connecting block 10 moves through the No. 1 opening 7 to drive the No. 1 door 2 to move. After the No. 1 door 2 moves, the freight elevator door is completely opened. When closing the door, the No. 1 door 2 moves first and then the No. 2 power rod 38 drives the No. 2 door 3 to move to close the freight elevator door, thereby realizing the function of stable opening of the freight elevator door and reducing usage failures.

[0022] Example 2: Please refer to Figure 2 and Figure 5, an embodiment provided by the present invention: a buffer assembly includes a support box 15, a buffer ball 16, a No. 1 spring 20, a No. 3 support rod 18, a contact plate 24, a buffer pad 23, and a No. 4 port 21, the support box 15 is located on the inner wall of the No. 2 door 3, the buffer ball 16 is located on the inner wall of the support box 15, the No. 3 support rod 18 is located on the inner wall of the support box 15, the outer wall of the No. 3 support rod 18 is sleeved with a No. 3 slide 19, the buffer pad 23 is located on the outer wall of the No. 2 door 3, the No. 4 port 21 is connected to the No. 2 door 3 and the outer wall of the support box 15, a T-shaped rod 22 is installed through the inner wall of the No. 4 port 21, and the outer wall of the T-shaped rod 22 is connected to the outer wall of the No. 3 slide 19, the outer wall of the T-shaped rod 22 is connected to the outer wall of the buffer ball 16, the outer wall of the T-shaped rod 22 is installed with a contact plate 24, the No. 1 spring 20 is located on the inner wall of the support box 15, and one end of the No. 1 spring 20 is connected to the outer wall of the T-shaped rod 22, the outer wall of the buffer ball 16 is installed The air pipe 17 and the T-bar 22 move with the support of the No. 4 port 21 and the No. 3 slide cylinder 19, and the contact plate 24 is located below the buffer pad 23. The closing of the No. 2 door 3 drives the contact plate 24 to move, and the contact plate 24 moves to make it contact with the contact plate 24 of another No. 2 door 3, so that it drives the T-bar 22 to move, and the movement of the T-bar 22 drives the No. 1 spring 20 to move, and the movement of the No. 1 spring 20 causes the T-bar 22 to drive the No. 3 slide cylinder 19 to move, and the movement of the No. 3 slide cylinder 19 causes the T-bar 22 to drive the buffer ball 16 to compress, and the buffer ball 16 is compressed to discharge the air inside it through the air pipe 17, thereby reducing the impact force when the No. 2 door 3 is closed, and when the door is opened, the No. 1 spring 20 rebounds and drives the T-bar 22 to move, and the T-bar 22 moves to pull up the buffer ball 16 again, and the air enters the buffer ball 16 through the air pipe 17, thereby reducing the impact force when the freight elevator door is closed and preventing the freight elevator door from being damaged by impact when closed.

[0023] Example 3: Please refer to Figure 2 , Figure 3 , Figure 6 and Figure 7The present invention provides an embodiment: the automatic lubrication assembly includes an oil tank 25, an oil inlet head 26, a backflow plate 27, a fourth power rod 29, a T-shaped frame 30, a second spring 33, a first frame 35, and an oil brush 36. The oil tank 25 is located on the outer wall of the first connecting block 10, the oil inlet head 26 runs through the top of the oil tank 25, the backflow plate 27 is located on the inner wall of the oil tank 25, the bottom of the oil tank 25 is penetrated and installed with an oil outlet pipe 28, and the fourth power rod 29 is located at the bottom of the oil tank 25. The T-shaped frame 30 is located on the inner wall of the oil outlet pipe 28, the outer wall of the T-shaped frame 30 is sleeved with a No. 5 slide 31, the outer wall of the No. 5 slide 31 is installed with a first blocking ring 32, the inner wall of the oil outlet pipe 28 is installed with a second blocking ring 34, the No. 2 spring 33 is located on the top of the first blocking ring 32, and one end of the No. 2 spring 33 is connected to the outer wall of the T-shaped frame 30, the inner wall of the oil outlet pipe 28 is penetrated and installed with an oil brush 36, the bottom of the first blocking ring 32 is installed with a No. 1 frame body 35, and the No. 1 The outer wall of the frame 35 is connected to the output end of the No. 4 power rod 29, the first blocking ring 32 and the second blocking ring 34 cooperate to seal the oil outlet pipe 28, the first blocking ring 32 is moved by the support of the No. 5 slide 31, the lubricating oil enters the oil tank 25 through the oil inlet head 26, and the lubricating oil therein enters the oil outlet pipe 28 through the backflow plate 27, the No. 4 power rod 29 moves to drive the No. 1 frame 35 to move, the No. 1 frame 35 moves to drive the first blocking ring 32 to move, the first blocking ring 32 moves to drive the No. 5 slide 31 to move, the No. 5 slide 31 moves to make the first blocking ring 32 drive the No. 2 spring 33 to move, the No. 2 spring 33 moves to make the first blocking ring 32 move away from the second blocking ring 34, at this time, the oil outlet pipe 28 is opened to make the lubricating oil flow to the surface of the oil brush 36, and the oil brush 36 passes through one end of the No. 1 power rod 5 to apply lubricating oil on the surface of the No. 1 support rod 8, thereby realizing the function of quickly and automatically applying lubricating oil to the freight elevator door to reduce wear and increase the service life of the freight elevator door.

[0024] Example 4: Please refer to Figure 2 , Figure 8 and Fig. 9The present invention provides an embodiment: the detection component includes an infrared distance sensor 37 and a processing component. The infrared distance sensor 37 is installed on the inner wall of the first door 2, the processing component is installed on the inner wall of the door frame 1, the processing component is electrically connected to the infrared distance sensor 37, and the processing component is electrically connected to the stable folding component. The infrared distance sensor 37 is used to detect the real-time distance data of the movement of the second door 3. The processing component has built-in appropriate distance data of the movement of the second door 3. The appropriate distance is divided into a shortest distance and a farthest distance. The shortest distance is 10 cm and the farthest distance is 160 cm. The real-time distance data of the movement of the second door 3 is transmitted to the processing module, and the real-time distance data of the movement of the second door 3 is compared with the appropriate distance data of the movement of the second door 3 through the processing module. According to the comparison, the real-time distance data of the movement of Door No. 2 3 is set to the appropriate distance state when the appropriate distance data of the movement of Door No. 2 3 is reached, and the real-time distance data of the movement of Door No. 2 3 is set to the inappropriate distance state when the appropriate distance data of the movement of Door No. 2 is not reached. When the processing module detects the appropriate distance state, the processing module controls the stable folding component to start, and after the stable folding component is started, controls Door No. 1 2 to open. When the processing module detects that the distance state is not reached, the processing module controls the stable folding component to continue to move. During the continuous movement of the stable folding component, the infrared distance sensor 37 continues to detect the real-time distance data of Door No. 2 until the processing module detects the appropriate distance state, thereby realizing the function of graded opening of the freight elevator door to improve the safety of use.

[0025] The use of the door machine system includes the following steps: Step S1, when opening the door, the No. 2 power rod 38 moves to drive the No. 2 door 3 to move, the No. 2 door 3 moves to drive the support block 14 to move, the support block 14 moves to drive the No. 2 slide 13 to move, the No. 2 slide 13 moves to make the No. 2 door 3 move to a suitable distance, at this time, the sixth power rod 5 moves to drive the sixth connecting block 10 to move, the sixth connecting block 10 moves through the sixth opening 7 to drive the sixth door 2 to move, and the sixth door 2 moves to completely open the freight elevator door. When closing the door, the sixth door 2 moves first and then the No. 2 power rod 38 drives the No. 2 door 3 to move to close the freight elevator door, thereby realizing the function of stable opening of the freight elevator door and reducing the use failure; Step S2, the closing of the No. 2 door 3 drives the contact plate 24 to move, the contact plate 24 moves to make it contact with the contact plate 24 of another No. 2 door 3, so that it drives the T-shaped rod 22 to move, the T-shaped rod 22 moves to drive the sixth spring 20 to move, the sixth spring 20 moves to make the T-shaped rod 22 drive the No. 3 slide cylinder 19 to move, the No. 3 slide cylinder 19 moves to make the T-shaped rod 22 drive the buffer ball 16 to compress, the buffer ball 16 is compressed to discharge the air inside through the air pipe 17, and the impact force when the No. 2 door 3 is closed is reduced, when the door is opened, the sixth spring 20 rebounds to drive the T-shaped rod 22 to move, the T-shaped rod 22 moves to pull up the buffer ball 16 again, and the air enters the buffer ball 16 through the air pipe 17, so as to reduce the impact force when the freight elevator door is closed and prevent the freight elevator door from being damaged by impact when it is closed; Step S3, the lubricating oil enters the oil tank 25 through the oil inlet head 26, and the lubricating oil therein enters the oil outlet pipe 28 through the backflow plate 27, the No. 4 power rod 29 moves to drive the sixth frame 35 to move, the sixth frame 35 moves to drive the first blocking ring 32 to move, the first blocking ring 32 moves to drive the No. 5 slide 31 to move, the No. 5 slide 31 moves to make the first blocking ring 32 drive the No. 2 spring 33 to move, the No. 2 spring 33 moves to make the first blocking ring 32 move away from the second blocking ring 34, at this time, the oil outlet pipe 28 is opened to make the lubricating oil flow to the surface of the oil brush 36, and the oil brush 36 passes through one end of the sixth power rod 5 to apply the lubricating oil on the surface of the sixth support rod 8, so as to realize the function of quickly and automatically applying lubricating oil to the freight elevator door, reducing wear and improving the service life of the freight elevator door; Step S4, when the processing module detects a suitable distance state, the processing module controls the stable folding component to start, and after the stable folding component is started, controls the sixth door 2 to open. When the processing module detects that it is not in a suitable distance state, the processing module controls the stable folding component to continue to move. During the continuous movement of the stable folding component, the infrared distance sensor 37 continuously detects the real-time distance data of the second door 3 until the processing module detects a suitable distance state, thereby realizing the function of graded opening of the freight elevator door to improve the safety of use.

[0026] Working principle: when opening the door, the No. 2 power rod 38 moves to drive the No. 2 door 3 to move, the No. 2 door 3 moves to drive the support block 14 to move, the support block 14 moves to drive the No. 2 slide 13 to move, the No. 2 slide 13 moves to make the No. 2 door 3 move to a suitable distance, at this time, the sixth power rod 5 moves to drive the sixth connecting block 10 to move, the sixth connecting block 10 moves through the sixth opening 7 to drive the sixth door 2 to move, after the sixth door 2 moves, the freight elevator door is completely opened, when closing the door, the sixth door 2 moves first and then the No. 2 power rod 38 drives the No. 2 door 3 to move to close the freight elevator door, realizing the function of stable opening of the freight elevator door and reducing the use of faults, the No. 2 door 3 is closed to drive the contact The plate 24 moves, and the contact plate 24 moves to make it contact with the contact plate 24 of another door No. 2, so that it drives the T-shaped rod 22 to move, and the movement of the T-shaped rod 22 drives the sixth spring 20 to move, and the movement of the sixth spring 20 makes the T-shaped rod 22 drive the third slide cylinder 19 to move, and the movement of the third slide cylinder 19 makes the T-shaped rod 22 drive the buffer ball 16 to compress, and the buffer ball 16 compresses so that the air inside is discharged through the air pipe 17, so as to reduce the impact force when the door No. 2 is closed, and when the door is opened, the sixth spring 20 rebounds and drives the T-shaped rod 22 to move, and the movement of the T-shaped rod 22 pulls up the buffer ball 16 again, and the air enters the buffer ball 16 through the air pipe 17, so as to realize the freight elevator. The function of reducing the impact force when the door is closed to prevent the freight elevator door from being damaged by impact when it is closed is to reduce the impact force when the door is closed. The lubricating oil enters the oil tank 25 through the oil inlet head 26, and the lubricating oil therein enters the oil outlet pipe 28 through the backflow plate 27. The fourth power rod 29 moves to drive the sixth frame 35 to move, and the sixth frame 35 moves to drive the first blocking ring 32 to move. The first blocking ring 32 moves to drive the fifth slide 31 to move. The fifth slide 31 moves to make the first blocking ring 32 drive the second spring 33 to move. The second spring 33 moves to make the first blocking ring 32 move away from the second blocking ring 34. At this time, the oil outlet pipe 28 is opened to allow the lubricating oil to flow to the surface of the oil brush 36, and the oil brush 36 passes through the sixth power rod 5 is applied with lubricating oil on the surface of the sixth support rod 8 at one end, so that the function of quickly and automatically applying lubricating oil to the freight elevator door is realized to reduce wear and increase the service life of the freight elevator door. When the processing module detects the appropriate distance state, the processing module controls the stable folding component to start, and after the stable folding component is started, the sixth door 2 is controlled to open. When the processing module detects that the distance is not in the appropriate state, the processing module controls the stable folding component to move continuously. During the continuous movement of the stable folding component, the infrared distance sensor 37 continuously detects the real-time distance data of the second door 3 until the processing module detects the appropriate distance state, so that the function of graded opening of the freight elevator door is realized to improve the safety of use.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An extra-large 4-fold freight elevator door, comprising a door frame (1), a stable folding assembly, a sixth door (2) and a second door (3), characterized in that: The inner wall of the door frame (1) is provided with a stable folding assembly, the outer wall of the stable folding assembly is connected to the top of the sixth door (2), the outer wall of the sixth door (2) is provided with a second opening (11), the inner wall of the second opening (11) is penetrated by a second door (3), the inner wall of the second door (3) is provided with a buffer assembly, and the outer wall of the stable folding assembly is provided with an automatic lubrication assembly; The stable folding assembly comprises a sixth power rod (5), a sixth support rod (8), a sixth slide cylinder (9), a sixth connecting block (10), and a sixth opening (7); the sixth power rod (5) is located on the inner wall of the door frame (1); the sixth support rod (8) is located on the inner wall of the door frame (1); the sixth slide cylinder (9) is sleeved on the outer wall of the sixth support rod (8); the sixth connecting block (10) is located on the outer wall of the sixth slide cylinder (9); the output end of the sixth power rod (5) is connected to the outer wall of the sixth connecting block (10); the sixth opening (7) is provided at the bottom of the door frame (1); a buffer block (6) is installed at the bottom of the door frame (1); The stable folding assembly further comprises a No. 2 power rod (38), a No. 2 support rod (12), a No. 2 slide cylinder (13), and a support block (14); the No. 2 power rod (38) is located on the inner wall of the sixth door (2), and the output end of the No. 2 power rod (38) is connected to the outer wall of the No. 2 door (3); the No. 2 support rod (12) is located on the inner wall of the sixth door (2); the No. 2 slide cylinder (13) is sleeved on the outer wall of the No. 2 support rod (12); the support block (14) is located on the outer wall of the No. 2 slide cylinder (13), and the bottom of the No. 2 door (3) is connected to the outer wall of the No. 2 slide cylinder (13); and the automatic lubrication assembly is located above the sixth slide cylinder (9).

2. The super-large 4-fold freight elevator door according to claim 1, characterized in that: The second slide cylinder (13) moves by being supported by the second support rod (12), the second door (3) moves by being supported by the second opening (11), and the sixth slide cylinder (9) moves by being supported by the sixth support rod (8).

3. The super-large 4-fold freight elevator door according to claim 1, characterized in that: The buffer assembly comprises a support box (15), a buffer ball (16), a sixth spring (20), a third support rod (18), a contact plate (24), a buffer pad (23), and a fourth port (21). The support box (15) is located on the inner wall of the second door (3), the buffer ball (16) is located on the inner wall of the support box (15), the third support rod (18) is located on the inner wall of the support box (15), the outer wall of the third support rod (18) is sleeved with a third slide cylinder (19), the buffer pad (23) is located on the outer wall of the second door (3), and the fourth port (21) is opened and connected with the second door (3). The outer wall of the No. 4 door (3) and the support box (15), the inner wall of the No. 4 opening (21) is penetrated by a T-shaped rod (22), and the outer wall of the T-shaped rod (22) is connected to the outer wall of the No. 3 slide cylinder (19), the outer wall of the T-shaped rod (22) is connected to the outer wall of the buffer ball (16), the outer wall of the T-shaped rod (22) is installed with a contact plate (24), the sixth spring (20) is located on the inner wall of the support box (15), and one end of the sixth spring (20) is connected to the outer wall of the T-shaped rod (22), and the outer wall of the buffer ball (16) is installed with an air pipe (17).

4. The super-large 4-fold freight elevator door according to claim 3, characterized in that: The T-shaped rod (22) moves with the support of the No. 4 port (21) and the No. 3 slide cylinder (19), and the contact plate (24) is located below the buffer pad (23).

5. The super-large 4-fold freight elevator door according to claim 1, characterized in that: The automatic lubrication assembly comprises an oil tank (25), an oil inlet head (26), a backflow plate (27), a fourth power rod (29), a T-shaped frame (30), a second spring (33), a sixth frame (35), and an oil brush (36). The oil tank (25) is located on the outer wall of the sixth connecting block (10). The oil inlet head (26) passes through the top of the oil tank (25). The backflow plate (27) is located on the inner wall of the oil tank (25). An oil outlet pipe (28) is installed through the bottom of the oil tank (25). The fourth power rod (29) is located at the bottom of the oil tank (25). The T-shaped frame (30) is located at the oil outlet pipe (28). 8), the outer wall of the T-shaped frame (30) is sleeved with a No. 5 slide cylinder (31), the outer wall of the No. 5 slide cylinder (31) is installed with a first blocking ring (32), the inner wall of the oil outlet pipe (28) is installed with a second blocking ring (34), the No. 2 spring (33) is located at the top of the first blocking ring (32), and one end of the No. 2 spring (33) is connected to the outer wall of the T-shaped frame (30), an oil brush (36) is installed through the inner wall of the oil outlet pipe (28), a sixth frame body (35) is installed at the bottom of the first blocking ring (32), and the outer wall of the sixth frame body (35) is connected to the output end of the No. 4 power rod (29).

6. The super-large 4-fold freight elevator door according to claim 5, characterized in that: The first blocking ring (32) cooperates with the second blocking ring (34) to seal the oil outlet pipe (28), and the first blocking ring (32) moves with the support of the fifth slide cylinder (31).

7. The super-large 4-fold freight elevator door according to claim 1, characterized in that: A detection component is installed on the inner wall of the sixth door (2), a sealing plate (4) is fixed to the top of the door frame (1) by bolts, and the detection component is used to detect the distance to the second door (3).

8. The super-large 4-fold freight elevator door according to claim 7, characterized in that: The detection component comprises an infrared distance sensor (37) and a processing component. The infrared distance sensor (37) is mounted on the inner wall of the sixth door (2). The processing component is mounted on the inner wall of the door frame (1). The processing component is electrically connected to the infrared distance sensor (37). The processing component is electrically connected to the stable folding component. The infrared distance sensor (37) is used to detect real-time distance data of the movement of the second door (3). The processing component has built-in appropriate distance data of the movement of the second door (3). The appropriate distance is divided into a shortest distance and a longest distance. The shortest distance is 10 cm and the longest distance is 160 cm.

9. The super-large 4-fold freight elevator door according to claim 1, characterized in that: The real-time distance data of the movement of the second door (3) is transmitted to the processing module, and the real-time distance data of the movement of the second door (3) is compared with the appropriate distance data of the movement of the second door (3) by the processing module. When the real-time distance data of the movement of the second door (3) is the appropriate distance data of the movement of the second door (3), the real-time distance data of the movement of the second door (3) is set to the appropriate distance state, and when the real-time distance data of the movement of the second door (3) is not the appropriate distance data of the movement of the second door (3), the real-time distance data of the movement of the second door (3) is set to the inappropriate distance state.

10. A door machine system for a super-large 4-fold freight elevator door, applicable to a super-large 4-fold freight elevator door according to any one of claims 1 to 9, characterized in that: The use of the door machine system includes the following steps: Step S1, when opening the door, the second power rod (38) moves to drive the second door (3) to move, the second door (3) moves to drive the support block (14), the support block (14) moves to drive the second slide cylinder (13), the second slide cylinder (13) moves to move the second door (3) to a suitable distance, then the sixth power rod (5) moves to drive the sixth connecting block (10), the sixth connecting block (10) moves through the sixth opening (7) to drive the sixth door (2) to move, after the sixth door (2) moves, the freight elevator door is completely opened, when closing the door, the sixth door (2) moves first and then the second power rod (38) drives the second door (3) to move to close the freight elevator door, thereby realizing the function of stable opening of the freight elevator door and reducing use failures; Step S2, the second door (3) is closed to drive the contact plate (24) to move, the contact plate (24) moves to make contact with the contact plate (24) of another second door (3), so that the contact plate (24) drives the T-shaped rod (22) to move, the T-shaped rod (22) moves to drive the sixth spring (20) to move, the sixth spring (20) moves to make the T-shaped rod (22) drive the third slide cylinder (19) to move, the third slide cylinder (19) moves to make the T-shaped rod (22) drive the buffer ball (16) to compress, the buffer ball (16) is compressed to discharge the air inside through the air pipe (17), so as to reduce the impact force when the second door (3) is closed, when the door is opened, the sixth spring (20) rebounds to drive the T-shaped rod (22) to move, the T-shaped rod (22) moves to pull up the buffer ball (16) again, and the air enters the buffer ball (16) through the air pipe (17), so as to achieve the function of reducing the impact force when the freight elevator door is closed and preventing the freight elevator door from being damaged by impact when it is closed; Step S3, the lubricating oil enters the oil tank (25) through the oil inlet head (26), and the lubricating oil in the oil tank enters the oil outlet pipe (28) through the backflow plate (27), the fourth power rod (29) moves to drive the sixth frame (35) to move, the sixth frame (35) moves to drive the first blocking ring (32) to move, the first blocking ring (32) moves to drive the fifth slide cylinder (31), the fifth slide cylinder (31) moves to make the first blocking ring (32) drive the second spring (33) to move, the second spring (33) moves to make the first blocking ring (32) move away from the second blocking ring (34), at this time, the oil outlet pipe (28) is opened, so that the lubricating oil flows to the surface of the oil brush (36), and the oil brush (36) passes through one end of the sixth power rod (5) to apply the lubricating oil on the surface of the sixth support rod (8), thereby realizing the function of quickly and automatically applying the lubricating oil to the freight elevator door, reducing wear and improving the service life of the freight elevator door; Step S4: When the processing module detects the appropriate distance state, the processing module controls the stable folding component to start, and after the stable folding component starts, controls the sixth door (2) to open. When the processing module detects that the distance state is not appropriate, the processing module controls the stable folding component to continue to move. During the period when the stable folding component continues to move, the infrared distance sensor (37) continues to detect the real-time distance data of the second door (3) until the processing module detects the appropriate distance state, thereby realizing the function of hierarchical opening of the freight elevator door to improve the safety of use.

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