An environmentally friendly and energy-saving ventilation device for elevators

Abstract

The present invention discloses an environmentally friendly and energy-saving ventilation device for elevators, which includes an elevator car and a ventilation shaft vertically distributed in an elevator shaft. A plurality of contact ventilation mechanisms are fixedly installed on the ventilation shaft at fixed intervals. An active ventilation cylinder is fixedly installed on the elevator car. When the elevator car stops at each landing door, the contact ventilation mechanism is communicated with the active ventilation cylinder to transmit the wind in the ventilation shaft into the elevator car. One end of the ventilation pipe is fixedly connected to a ventilation cavity, and the other end is communicated with a ventilation box arranged on one side of the elevator car. A top ventilation opening is also provided on the top of the elevator car, and an active ventilation device is installed on the top ventilation opening. In the present invention, the original ventilation shaft is utilized, and a slight modification is made to the ventilation shaft to introduce the wind in the ventilation shaft into the car interior, realizing the ventilation of the elevator car and achieving the effect of energy conservation and environmental protection.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator equipment, and particularly to an environmentally friendly and energy-saving ventilation device for elevators. Background Art

[0002] The ventilation of elevators is related to our personal safety and the comfort of taking elevators. At present, domestic elevator manufacturers basically adopt a direct-current ventilation method for the ventilation form of elevator carriages, using mechanical air supply from the upper part of the fan and exhausting air through the gaps of the carriage or opening exhaust ports at the bottom. These methods all use active ventilation to cool the interior of the carriage. However, in some seasons with relatively low temperatures, using active ventilation will make users feel significantly uncomfortable and also cause power waste. For this reason, we propose an environmentally friendly and energy-saving ventilation device for elevators to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide an environmentally friendly and energy-saving ventilation device for elevators to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An environmentally friendly and energy-saving ventilation device for elevators, including an elevator car and a ventilation shaft vertically distributed in the elevator shaft. A plurality of contact ventilation mechanisms are fixedly installed at fixed intervals on the ventilation shaft. An active ventilation cylinder is fixedly installed on the elevator car. When the elevator car stops at each landing door, the contact ventilation mechanism communicates with the active ventilation cylinder to transmit the air in the ventilation shaft into the elevator car.

[0005] The contact ventilation mechanism includes a connection cylinder fixedly communicated with the ventilation shaft, a movable plug elastically arranged in the connection cylinder, and a sealing ring fixedly arranged at the outer end of the connection cylinder and in movable contact with the movable plug; the outer end of the movable plug has a smooth arc surface structure and extends to the outside of the connection cylinder.

[0006] The active ventilation cylinder includes a cylinder body fixedly connected to the elevator car and a ventilation duct communicating the cylinder body and the elevator car. The cylinder body is fixedly connected to the rear side of the elevator car through a mounting bracket; a wind cavity is arranged in the cylinder body, and an arc-shaped ventilation groove is opened on one side of the wind cavity corresponding to the contact ventilation mechanism, and the ventilation groove corresponds to the opening on the sealing ring.

[0007] One end of the ventilation duct is fixedly connected to the wind cavity, and the other end is communicated with a ventilation box arranged on one side of the elevator car. A top ventilation opening is also opened on the top of the elevator car, and an active ventilation device is installed on the top ventilation opening.

[0008] An active sealing plate is installed on the top vent and the vent box opening. The active sealing plate includes two V-shaped slide rails fixedly installed in the elevator car and a plurality of sealing plates slidably arranged between the V-shaped slide rails. The sealing plates are alternately sealed on the top vent and the vent box opening.

[0009] Preferably, the active plug is a spindle-shaped structure with smooth arc-shaped surfaces at both ends. A fixing member is fixedly connected to the inner side of the active plug. A spring is also arranged inside the connecting cylinder. One end of the spring is connected to the fixing member, and the other end is connected to a snap ring fixedly arranged in the connecting cylinder.

[0010] Preferably, a plurality of rollers are movably installed on the outer side of the cylinder body. A support rail is vertically installed in the elevator shaft, and a chute for cooperating with the rollers is vertically opened on the support rail.

[0011] Preferably, concave arc-shaped contact surfaces are opened at the top and bottom of the cylinder body facing the contact ventilation mechanism. A rubber cover is installed on the outer side of the connecting cylinder. When the elevator car stops at the landing door position, the cylinder body just squeezes the connecting cylinder where the active plug is located, and an annular ventilation space is formed between the active plug and the sealing ring. The ventilation slots on the outer side of the cylinder body are correspondingly communicated with the annular ventilation space, and the rubber cover seals the annular ventilation space.

[0012] Preferably, the active ventilation device includes a cover plate fixedly installed above the top vent. A fan blade is rotatably installed inside the cover plate, and the fan blade is driven by a motor.

[0013] Preferably, an inclined downward opening is opened on the side of the vent box facing the inner side of the elevator car, and a dust-proof net is also distributed on the opening. One section of the V-shaped slide rail is parallel to the top vent, and the other section is parallel to the vent box opening. Limiting wheels are rotatably installed on both sides of the sealing plate, and the limiting wheels are rotatably clamped inside the V-shaped slide rail. Adjacent sealing plates are movably connected by a connecting rod;

[0014] A connecting plate is also movably hinged on one of the sealing plates close to the vent box. A gear is rotatably installed on the connecting plate. The gear passes through a straight slot opening provided on the V-shaped slide rail. A rack meshing with the gear is arranged on one side of the straight slot opening, and the gear is driven by a servo motor arranged on the connecting plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] In the present invention, the original ventilation shaft is utilized, and a little modification is made to the ventilation shaft to introduce the wind in the ventilation shaft into the car interior, realizing the ventilation of the elevator car and achieving the effect of energy conservation and environmental protection.

[0017] In the present invention, when the movable plug is extruded and separated from the sealing ring, that is, when the elevator car reaches the landing door position, the connecting cylinder will output air outward, without affecting the normal operation of the ventilation shaft.

[0018] In the present invention, different ventilation methods can be determined according to the actual situation. When the sealing plates are concentrated on one side of the opening of the ventilation box to seal the ventilation box, the air in the ventilation shaft cannot enter the elevator car; when the sealing plates are concentrated on one side of the top ventilation opening, the ventilation box is opened, and the air in the ventilation shaft can enter the elevator car, while ensuring the integrity of the top of the elevator car by sealing the top ventilation opening; if the air in the ventilation shaft is insufficient, the sealing plates are set in the middle of the opening of the ventilation box and the top ventilation opening, and the elevator car is supplemented with ventilation through the active ventilation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the elevator car in the present invention;

[0021] Figure 3 is a schematic diagram of the active ventilation device in the present invention;

[0022] Figure 4 is a schematic diagram of the movable sealing plate in the present invention;

[0023] Figure 5 is a partial schematic diagram of the movable sealing plate in the present invention;

[0024] Figure 6 is a connection schematic diagram of the contact ventilation mechanism and the movable ventilation cylinder in the present invention;

[0025] Figure 7 is a schematic diagram of the contact ventilation mechanism in the present invention;

[0026] Figure 8 is a schematic diagram of the movable ventilation cylinder in the present invention;

[0027] In the figure: 1. Elevator car; 101. Ventilation box; 102. Top ventilation opening; 2. Ventilation shaft;

[0028] 3. Contact ventilation mechanism; 31. Connecting cylinder; 32. Movable plug; 33. Sealing ring; 34. Fixed part; 35. Spring; 36. Snap ring; 37. Rubber cover;

[0029] 4. Movable ventilation cylinder; 41. Cylinder body; 4101. Air cavity; 4102. Arc-shaped contact surface; 4103. Roller; 4104. Ventilation slot; 42. Ventilation pipe; 43. Mounting rack;

[0030] 5. Support rail; 501. Slide groove;

[0031] 6. Active ventilation equipment; 61. Cover plate; 62. Motor; 63. Fan blades;

[0032] 7. Movable sealing plate; 71. V-shaped slide rail; 7101. Straight notch; 72. Sealing plate; 73. Rack; 74. Connecting plate; 75. Gear; 76. Connecting rod; 77. Limiting wheel; 78. Servo motor. Detailed implementation manners

[0033] The technical solutions in the present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0034] Please refer to Figure 1-8 , the present invention provides a technical solution: an environmentally friendly and energy-saving ventilation equipment for an elevator, including an elevator car 1 and a ventilation shaft 2 vertically distributed in the elevator shaft. In practice, in order to ensure the air fluidity of the elevator passage, a ventilation shaft is usually arranged in the elevator shaft, and a fan is arranged on the top floor. In the present invention, the original ventilation shaft is utilized and slightly modified to realize the ventilation of the elevator car 1, achieving the effect of energy conservation and environmental protection.

[0035] A plurality of contact ventilation mechanisms 3 are fixedly installed on the ventilation shaft 2 at fixed intervals. An active ventilation cylinder 4 is fixedly installed on the elevator car 1. When the elevator car 1 stops at each landing door, the contact ventilation mechanism 3 is communicated with the active ventilation cylinder 4 to transmit the air in the ventilation shaft 2 into the elevator car 1.

[0036] Specifically:

[0037] The contact ventilation mechanism 3 includes a connecting cylinder 31 fixedly communicated with the ventilation shaft 2, a movable plug 32 elastically arranged in the connecting cylinder 31, and a sealing ring 33 fixedly arranged at the outer end of the connecting cylinder 31 and in movable contact with the movable plug 32; the outer end of the movable plug 32 has a smooth arc surface structure and extends to the outside of the connecting cylinder 31; the movable plug 32 is a spindle-shaped structure, both ends of which are smooth arc surface structures. A fixing member 34 is fixedly connected to the inner side of the movable plug 32, and a spring 35 is further arranged inside the connecting cylinder 31. One end of the spring 35 is connected to the fixing member 34, and the other end is connected to a snap ring 36 fixedly arranged in the connecting cylinder 31.

[0038] The movable plug 32 can move axially in the connecting cylinder 31. When the movable plug 32 moves outward until its side contacts the sealing ring 33, the outer end of the connecting cylinder 31 is just sealed. In practice, in order to ensure the sealing performance, the sealing ring 33 can be made of elastic rubber material. When the smooth arc surface structure at the outer end of the movable plug 32 is externally pressed, it will drive the movable plug 32 to move inward into the connecting cylinder 31, so that the side of the movable plug 32 is separated from the contact with the sealing ring 33, and an annular ventilation hole is formed between the two. The air in the ventilation shaft 2 can then be output through the connecting cylinder 31.

[0039] Under the action of the spring 35, the movable plug 32 is pushed towards the outer end of the connecting cylinder 31, and the movable plug 32 is pressed against the sealing ring 33. At this time, the connecting cylinder 31 cannot output air outward. Only when the movable plug 32 is extruded and separated from the sealing ring 33, that is, when the elevator car 1 reaches the landing door position, the connecting cylinder 31 will output air outward.

[0040] To facilitate the output of air, the sealing ring 33 can also be set as an annular structure with a triangular cross-section, and its windward surface is a narrow surface.

[0041] The movable ventilation cylinder 4 includes a cylinder body 41 fixedly connected to the elevator car 1 and a ventilation duct 42 connecting the cylinder body 41 and the elevator car 1. The cylinder body 41 is fixedly connected to the rear side of the elevator car 1 through a mounting bracket 43. A wind cavity 4101 is arranged inside the cylinder body 41, and an arc-shaped ventilation groove 4104 is opened on one side of the wind cavity 4101 corresponding to the contact ventilation mechanism 3. The ventilation groove 4104 corresponds to the opening on the sealing ring 33.

[0042] In an embodiment of the present invention, a plurality of rollers 4103 are movably installed on the outside of the cylinder body 41, a support rail 5 is vertically installed in the elevator shaft, and a chute 501 cooperating with the rollers 4103 is vertically opened on the support rail 5. During the up and down movement of the elevator car 1, the movable ventilation cylinder 4 also moves accordingly. The structure of the rollers 4103 and the support rail 5 can ensure the stability of the operation of the movable ventilation cylinder 4.

[0043] Arc-shaped contact surfaces 4102 recessed inward are opened at the top and bottom of the cylinder body 41 facing the contact ventilation mechanism 3. During the up and down movement of the cylinder body 41, when contacting the movable plug 32, it first contacts the movable plug 32 through the arc-shaped contact surface 4102, which is convenient for extruding the movable plug 32 to the inside of the connecting cylinder 31. A rubber cover 37 is installed on the outside of the connecting cylinder 31. When the elevator car 1 stops at the landing door position, the cylinder body 41 just squeezes the movable plug 32 into the connecting cylinder 31, and an annular ventilation space is formed between the movable plug 32 and the sealing ring 33; the ventilation groove 4104 on the outside of the cylinder body 41 corresponds to and communicates with the annular ventilation space, and the rubber cover 37 seals the annular ventilation space to ensure the tightness during the ventilation process.

[0044] As Figure 1 shown, one end of the ventilation duct 42 is fixedly connected to the wind cavity 4101, and the other end communicates with a ventilation box 101 arranged on one side of the elevator car 1. A top ventilation opening 102 is also opened on the top of the elevator car 1, and an active ventilation device 6 is installed on the top ventilation opening 102.

[0045] Among them, the active ventilation device 6 includes a cover plate 61 fixedly installed above the top ventilation opening 102. A fan blade 63 is rotatably installed inside the cover plate 61, and the fan blade 63 is driven by a motor 62. In the present invention, the active ventilation device 6 adopts a conventional ventilation device in the art and serves as a supplement to the passive ventilation device in the present invention.

[0046] An active sealing plate 7 is installed on the top ventilation opening 102 and the opening of the ventilation box 101. The active sealing plate 7 includes two V-shaped slide rails 71 fixedly installed inside the elevator car 1 and a plurality of sealing plates 72 slidably arranged between the V-shaped slide rails 71. The sealing plates 72 alternately seal the top ventilation opening 102 and the opening of the ventilation box 101.

[0047] One side of the ventilation box 101 facing the inner side of the elevator car 1 is provided with an opening inclined downward, and a dust-proof net is also distributed on the opening. The wind in the ventilation shaft 2 enters the ventilation box 101 through the interconnected contact ventilation mechanism 3 and the active ventilation cylinder 4 and ventilates into the elevator car 1 through the inclined downward opening; one section of the V-shaped slide rail 71 is parallel to the top ventilation opening 102, and the other section is parallel to the opening of the ventilation box 101. Limiting wheels 77 are rotatably installed on both sides of the sealing plate 72, and the limiting wheels 77 are rotatably clamped inside the V-shaped slide rail 71, and adjacent two sealing plates 72 are movably connected by a connecting rod 76; specifically: the two ends of the connecting rod 76 are respectively hinged at the same position on the side surfaces of the two sealing plates 72. When one of the sealing plates 72 moves, it drives the other sealing plate 72 to move.

[0048] One of the sealing plates 72 close to the ventilation box 101 is also movably hinged with a connecting plate 74. A gear 75 is rotatably installed on the connecting plate 74. The gear 75 passes through a straight slot 7101 provided on the V-shaped slide rail 71. The straight slot 7101 is located on a section of the V-shaped slide rail 71 parallel to the opening of the ventilation box 101 for the up and down movement of the gear 75; a rack 73 meshing with the gear 75 is arranged on one side of the straight slot 7101, and the gear 75 is driven by a servo motor 78 provided on the connecting plate 74.

[0049] The servo motor 78 drives the gear 75 to rotate, driving the front sealing plate 72 to move along the V-shaped slide rail 71. When the sealing plates 72 are concentrated on one side of the opening of the ventilation box 101, the ventilation box 101 is sealed, and the wind in the ventilation shaft 2 cannot enter the elevator car 1; when the sealing plates 72 are concentrated on one side of the top ventilation opening 102, the ventilation box 101 is opened, the wind in the ventilation shaft 2 can enter the elevator car 1, and at the same time, the top ventilation opening 102 is sealed to ensure the integrity of the top of the elevator car 1; if the wind in the ventilation shaft 2 is insufficient, the sealing plates 72 are arranged in the middle of the opening of the ventilation box 101 and the top ventilation opening 102, and the elevator car 1 is supplemented with ventilation through the active ventilation device 6.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly and energy-saving ventilation device for an elevator, comprising an elevator car and a ventilation shaft vertically distributed in an elevator shaft, characterized in that: A plurality of contact ventilation mechanisms are installed at fixed intervals on the ventilation shaft. An active ventilation cylinder is fixedly installed on the elevator car. When the elevator car stops at each landing door, the contact ventilation mechanism communicates with the active ventilation cylinder to transmit the air in the ventilation shaft into the elevator car. The contact ventilation mechanism includes a connecting cylinder fixedly communicated with the ventilation shaft, a movable plug elastically arranged in the connecting cylinder, and a sealing ring fixedly arranged at the outer end of the connecting cylinder and in movable contact with the movable plug. The outer end of the movable plug is in a smooth arc surface structure and extends to the outside of the connecting cylinder. The movable plug is in a spindle shape structure, and both ends thereof are in smooth arc surface structures. A fixing member is fixedly connected to the inner side of the movable plug. A spring is further arranged inside the connecting cylinder. One end of the spring is connected to the fixing member, and the other end is connected to a snap ring fixedly arranged in the connecting cylinder. The active ventilation cylinder includes a cylinder body fixedly connected to the elevator car and a ventilation duct communicating the cylinder body and the elevator car. An air cavity is arranged inside the cylinder body. An arc-shaped ventilation slot is opened on one side of the air cavity corresponding to the contact ventilation mechanism, and the ventilation slot corresponds to the opening on the sealing ring. A plurality of rollers are movably installed on the outer side of the cylinder body. A support rail is vertically installed in the elevator shaft, and a chute matching with the rollers is vertically opened on the support rail. Arc-shaped contact surfaces recessed inward are opened at the top and bottom of the side of the cylinder body facing the contact ventilation mechanism. A rubber cover is installed on the outer side of the connecting cylinder. When the elevator car stops at the landing door position, the cylinder body just squeezes the movable plug into the connecting cylinder, and an annular ventilation space is formed between the movable plug and the sealing ring. The ventilation slot on the outer side of the cylinder body corresponds to and communicates with the annular ventilation space, and the rubber cover and the sealing cover are on the annular ventilation space. One end of the ventilation duct is fixedly connected to the air cavity, and the other end communicates with a ventilation box arranged on one side of the elevator car. A top ventilation opening is further opened on the top of the elevator car, and an active ventilation device is installed on the top ventilation opening. Movable sealing plates are installed on the top ventilation opening and the opening of the ventilation box. The movable sealing plates include two V-shaped slide rails fixedly installed in the elevator car and a plurality of sealing plates slidably arranged between the V-shaped slide rails. The sealing plates alternately seal the top ventilation opening and the opening of the ventilation box. An opening inclined downward is opened on the side of the ventilation box facing the inner side of the elevator car, and a dust-proof net is further distributed on the opening. One section of the V-shaped slide rail is parallel to the top ventilation opening, and the other section is parallel to the opening of the ventilation box. Limit wheels are rotatably installed on both sides of the sealing plate, and the limit wheels are rotatably clamped inside the V-shaped slide rail. Adjacent two sealing plates are movably connected through a connecting rod. A connecting plate is movably hinged to one of the sealing plates close to the ventilation box. A gear is rotatably installed on the connecting plate. The gear passes through a straight slot opening arranged on the V-shaped slide rail. A rack meshing with the gear is arranged on one side of the straight slot opening, and the gear is driven by a servo motor arranged on the connecting plate.

2. The environmentally friendly and energy-saving ventilation device for an elevator according to claim 1, characterized in that: The active ventilation device includes a cover plate fixedly installed above the top ventilation opening. A fan blade is rotatably installed inside the cover plate, and the fan blade is driven by a motor.

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