Machine-room-free elevator with rear counterweight

Abstract

The utility model relates to the technical field of machine-room-less elevators, in particular to a machine-room-less elevator with a rear counterweight, and aims to solve the technical problems that a ventilation fan of the conventional machine-room-less elevator with the rear counterweight stops after an elevator fault, so that internal personnel are coma due to oxygen deficit; according to the technical scheme, the machine-room-free elevator with the rear counterweight comprises an elevator car, a shaft, an outer door, an elevator car door, a rear counterweight assembly, a traction assembly and a ventilation assembly. The ventilation assembly capable of being opened manually is additionally arranged on the elevator without the machine room, when the elevator breaks down, the ventilation assembly is opened manually for air circulation, the dust blocking structure is arranged on the ventilation assembly, dust in a shaft can be blocked, the dust and the air are prevented from entering the elevator car together, and the safety of the elevator is improved. The circulating air can prevent people in the lift car from oxygen deficit, so that the problem that people in the lift car are coma due to oxygen deficit due to the fact that a ventilation fan of an existing rear-counter-weight machine-room-free lift stops after the lift breaks down is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine room-less elevators, and in particular relates to a machine room-less elevator with a rear counterweight. Background Art

[0002] In order to save space, more and more buildings now use machine room-less elevators that cancel the dedicated machine room and install control cabinets, main machines, speed limiters and other equipment in the shaft to transport people or goods, effectively improving the utilization rate of building area while reducing construction costs. In order to facilitate people to quickly enter and exit the car, existing machine room-less elevators often use rear counterweights.

[0003] At present, existing machine room-less elevators often use electric-powered ventilation fans to ventilate the interior of the elevator. When a fault occurs, the ventilation fan will stop working, and people trapped in the elevator will suffer from hypoxia due to the enclosed space of the elevator.

[0004] Therefore, in order to address the problem that the ventilation fan driven by electric energy in the existing machine room-less elevator with a rear counterweight will stop working when the elevator fails, causing hypoxia among the people inside, the existing machine room-less elevator with a rear counterweight is improved by opening ventilation windows for air circulation on its side walls to provide air exchange channels after the ventilation fan stops working, thereby preventing the people inside from falling into a coma due to hypoxia. Utility Model Content

[0005] In order to overcome the problem that the ventilation fan of the existing machine room-less elevator with rear counterweight stops rotating after the elevator fails, causing the internal personnel to become comatose due to lack of oxygen.

[0006] The technical solution of the utility model is: a machine room-less elevator with a rear counterweight, comprising a car, a hoistway, an outer door, a car door, a rear counterweight assembly, a traction assembly, and a ventilation assembly; the car is arranged inside the hoistway, a plurality of equidistantly arranged outer doors are opened on one side of the hoistway, one side of the car is arranged on the car door, a rear counterweight assembly facing the outer door is arranged in the hoistway, a traction assembly for adjusting the rear counterweight assembly and the up and down movement of the car is installed in the hoistway, and ventilation assemblies are arranged on the left and right sides of the car.

[0007] Preferably, the car is adjusted to move up and down by cooperating with the traction assembly and the rear counterweight assembly, and a ventilation assembly that can be opened manually is installed. When the elevator fails and the ventilation fan cannot be used, the ventilation assembly is manually opened to provide a circulation channel for air, thereby preventing people in the car from becoming hypoxic and unconscious in the confined space.

[0008] Preferably, the rear counterweight assembly includes a counterweight frame and a counterweight block; a counterweight track is installed in the hoistway opposite to the outer door, the counterweight frame is slidably connected to the counterweight track, and a number of counterweight blocks are placed in the counterweight frame. The counterweight blocks can increase the weight and are installed in the counterweight frame that slides along the counterweight track. This can slow down the elevator's descent speed and prevent the elevator from impacting the personnel and goods inside due to excessive descent speed.

[0009] Preferably, the rear counterweight assembly also includes a baffle and a buffer wall; the baffle is fixedly connected to the counterweight frame by bolts, and a buffer wall is installed at the bottom end of the shaft below the counterweight frame. The baffle can fix the counterweight block on the counterweight frame to prevent the counterweight block from falling off the counterweight frame. The buffer wall can play a buffering role to prevent the counterweight frame from falling to the ground, and at the same time can reduce the sound generated by the collision between the counterweight frame and the buffer wall.

[0010] Preferably, the traction assembly includes a traction machine and a traction rope; the traction machine is installed in the hoistway, and traction ropes are connected between the traction machine and the car, between the traction machine and the counterweight frame, and between the counterweight frame and the car. The traction ropes are moved by the rotation of the traction machine, thereby controlling the lifting and lowering of the car and the counterweight frame.

[0011] Preferably, the ventilation assembly includes vents and ventilation windows; vents are provided on the left and right sides of the car, and ventilation windows with built-in slots are installed in the vents. Air can circulate through the vents. At the same time, in order to protect the safety of people in the car, the ventilation windows can protect the people inside while ensuring air circulation, prevent foreign objects from splashing into the car, and prevent children from falling from the vents.

[0012] Preferably, the ventilation assembly also includes a dust shield and a filter; a dust shield is installed on the outside of the ventilation window above the slot, and a filter is connected to the inside of the ventilation window through magnetic attraction. The dust shield is at a certain angle, which can block some dust outside the ventilation window without affecting the air circulation in the slot, and the filter can perform secondary filtration on the air entering the car.

[0013] Preferably, a movable plate is connected to the inner side of the ventilation fan by a hinge, and the other side of the movable plate is connected to the ventilation window by a buckle. A purple disinfection lamp is installed at the top of the car. The movable plate can be opened manually and can be closed when the machine room-less elevator is operating normally. It can be opened when the machine room-less elevator fails. The purple disinfection lamp can disinfect the inside of the car.

[0014] Beneficial effects of the utility model:

[0015] 1. By adding a manually opened ventilation component to the machine room-less elevator, the ventilation component can be manually opened when the elevator fails to allow air to circulate. The ventilation component is provided with a dust-blocking structure to block the dust in the well and prevent dust and air from entering the car together. The circulating air can prevent people in the car from lacking oxygen;

[0016] 2. The machine room-less elevator is equipped with a rear counterweight assembly, which drives the car to move up and down through the rotation of the traction machine. The counterweight block on the counterweight frame can slow down the speed of the car's descent to prevent the rapid descent of the car from causing impact on the people and goods inside. The rear counterweight structure can widen the car compared to the side counterweight structure, thereby increasing the load-bearing capacity of the machine room-less elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The first three-dimensional structure schematic diagram of the machine room-less elevator with rear counterweight of the utility model is shown;

[0018] Figure 2 The second three-dimensional structure schematic diagram of the machine room-less elevator with rear counterweight of the utility model is shown;

[0019] Figure 3 The schematic diagram of the cross-section of the three-dimensional structure of the machine room-less elevator with rear counterweight of the utility model is shown;

[0020] Figure 4 The three-dimensional structure diagram of the rear counterweight assembly of the machine roomless elevator with rear counterweight of the utility model is shown;

[0021] Figure 5 The three-dimensional structure diagram of the ventilation assembly of the machine roomless elevator with rear counterweight of the utility model is shown;

[0022] Figure 6 Shown is a schematic diagram of the three-dimensional structure of the ventilation components and purple fire-extinguishing lamp of the machine roomless elevator with rear counterweight of the utility model.

[0023] Explanation of the reference numerals in the drawings: 1. car; 2. shaft; 3. outer door; 4. car door; 5. rear counterweight assembly; 6. traction assembly; 7. ventilation assembly; 8. movable plate; 9. purple flashlight; 501. counterweight frame; 502. counterweight block; 503. baffle; 504. buffer wall; 601. traction machine; 602. traction rope; 701. vent; 702. ventilation window; 703. dust shield; 704. filter. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] See also Figure 1-2The utility model provides an embodiment: a machine room-less elevator with a rear counterweight comprises a car 1, a shaft 2, an outer door 3, a car door 4, a rear counterweight assembly 5, a traction assembly 6, and a ventilation assembly 7; the car 1 is arranged inside the shaft 2, and a plurality of equidistantly arranged outer doors 3 are opened on one side of the shaft 2, and a car door 4 is arranged on one side of the car 1, and a rear counterweight assembly 5 facing the outer door 3 is arranged in the shaft 2, and a traction assembly 6 for adjusting the rear counterweight assembly 5 and the upward and downward movement of the car 1 is installed in the shaft 2, and ventilation assemblies 7 are arranged on the left and right sides of the car 1, and the car 1 is adjusted to move up and down by cooperating with the rear counterweight assembly 5 through the traction assembly 6, and a ventilation assembly 7 that can be manually opened is added. When the elevator fails and the ventilation fan cannot be used, the ventilation assembly 7 is manually opened to provide a circulation channel for air to prevent the personnel in the car 1 from suffering from hypoxia and coma in the confined space.

[0026] See also Figure 3-4 In this embodiment, the rear counterweight assembly 5 includes a counterweight frame 501 and a counterweight block 502; a counterweight track opposite to the outer door 3 is installed in the hoistway 2, and a counterweight frame 501 is slidably connected in the counterweight track, and a plurality of counterweight blocks 502 are placed in the counterweight frame 501. The rear counterweight assembly 5 also includes a baffle 503 and a buffer wall 504; the baffle 503 is fixedly connected to the counterweight frame 501 by bolts, and a buffer wall 504 located below the counterweight frame 501 is installed at the bottom end of the hoistway 2. The traction assembly 6 includes a traction machine 601 and a traction rope 602; a traction machine 601 is installed in the hoistway 2, and there is a traction machine 601 between the traction machine 601 and the car 1, between the traction machine 601 and the counterweight frame 501, and between the counterweight A traction rope 602 is connected between the frame 501 and the car 1. The counterweight 502 can add weight and is installed in the counterweight frame 501 that slides along the counterweight track. It can slow down the elevator's descent speed to prevent the elevator from impacting the internal personnel and goods due to excessive descent speed. The baffle 503 can fix the counterweight 502 on the counterweight frame 501 to prevent the counterweight 502 from falling off the counterweight frame 501. The buffer wall 504 can play a buffering role to prevent the counterweight frame 501 from falling to the ground. At the same time, it can reduce the sound generated by the collision between the counterweight frame 501 and the buffer wall 504. The traction rope 602 is driven to move by the rotation of the traction machine 601, thereby controlling the lifting and lowering of the car 1 and the counterweight frame 501.

[0027] See also Figure 5-6In this embodiment, the ventilation assembly 7 includes a vent 701 and a ventilation window 702; the left and right sides of the car 1 are provided with vents 701, and the vents 701 are provided with ventilation windows 702 with internal slots, and the ventilation assembly 7 also includes a dust shield 703 and a filter 704; a dust shield 703 located above the slot is installed on the outside of the ventilation window 702, and a filter 704 is connected to the inside of the ventilation window 702 by magnetic attraction, and a movable plate 8 is connected to the inside of the ventilation fan by a hinge, and the other side of the movable plate 8 is connected to the ventilation window 702 by a buckle, and a purple disinfection lamp 9 is installed at the top in the car 1, and air can be discharged through the vent 701. To provide air circulation, and at the same time to protect the safety of people in the car 1, the ventilation window 702 can protect the internal personnel while ensuring air circulation, prevent foreign objects from splashing into the car 1, and prevent children from falling from the vent 701. The dust shield 703 is at a certain angle, which can block some dust outside the ventilation window 702 without affecting the air circulation in the slot. The filter net 704 can perform secondary filtering on the air entering the car 1. The movable plate 8 can be opened manually, and can be closed when the machine room-less elevator is operating normally, and opened when the machine room-less elevator fails. The purple disinfection lamp 9 can disinfect the inside of the car 1.

[0028] When working, first install the rear counterweight assembly 5 and the traction assembly 6, start the traction machine 601, drive the traction rope 602 to move, the counterweight frame 501 drives the counterweight block 502 to move downward, so that the elevator moves upward. When the elevator moves downward, the counterweight frame 501 and the counterweight block 502 begin to rise. The counterweight block 502 and the counterweight frame 501 can buffer the impact caused by the elevator descending and ensure the safe operation of the elevator.

[0029] When the elevator breaks down, the ventilation fan stops running, and the personnel inside open the flap. The air in the shaft 2 flows into the interior of the car 1 through the slot on the ventilation window 702. The shaft 2 contains dust, some of which is blocked by the baffle 503 on the ventilation window 702, and some of the dust is blocked by the filter 704. After the rescue is completed, the magnetic filter 704 can be removed for cleaning and then glued back, and then the movable plate 8 can be closed, and the purple disinfection lamp 9 can be used to disinfect the interior of the car 1.

[0030] Through the above steps, a ventilation component 7 that can be opened manually is added to the machine room-less elevator. When the elevator fails, the ventilation component 7 is manually opened to allow air to circulate. A dust blocking structure is provided on the ventilation component 7 to block the dust in the shaft 2 and prevent the dust and air from entering the interior of the car 1 together. The circulating air can prevent the people in the car 1 from lacking oxygen, so as to solve the problem that the ventilation fan of the existing machine room-less elevator with a rear counterweight stops after the elevator fails, causing the people inside to become comatose due to lack of oxygen.

[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A machine room-less elevator with a rear counterweight, comprising a car (1), a hoistway (2), an outer door (3), and a car door (4); characterized in that: The elevator car (1) also comprises a rear counterweight assembly (5), a traction assembly (6), and a ventilation assembly (7); the elevator car (1) is arranged inside the shaft (2); a plurality of equally spaced outer doors (3) are provided on one side of the shaft (2); a car door (4) is provided on one side of the elevator car (1); a rear counterweight assembly (5) facing the outer door (3) is provided in the shaft (2); a traction assembly (6) for adjusting the upward and downward movement of the rear counterweight assembly (5) and the elevator car (1) is installed in the shaft (2); and ventilation assemblies (7) are provided on the left and right sides of the elevator car (1).

2. A machine room-less elevator with a rear counterweight according to claim 1, characterized in that: The rear counterweight assembly (5) comprises a counterweight frame (501) and a counterweight block (502); a counterweight track opposite to the outer door (3) is installed in the shaft (2), the counterweight frame (501) is slidably connected in the counterweight track, and a plurality of counterweight blocks (502) are placed in the counterweight frame (501).

3. A machine room-less elevator with a rear counterweight according to claim 2, characterized in that: The rear counterweight assembly (5) also includes a baffle (503) and a buffer wall (504); the baffle (503) is fixedly connected to the counterweight frame (501) by bolts, and the bottom end of the shaft (2) is provided with a buffer wall (504) located below the counterweight frame (501).

4. A machine room-less elevator with a rear counterweight according to claim 2, characterized in that: The traction assembly (6) comprises a traction machine (601) and a traction rope (602); the traction machine (601) is installed in the hoistway (2); the traction rope (602) is connected between the traction machine (601) and the car (1), between the traction machine (601) and the counterweight frame (501), and between the counterweight frame (501) and the car (1).

5. The machine room-less elevator with a rear counterweight according to claim 1, characterized in that: The ventilation assembly (7) comprises a ventilation opening (701) and a ventilation window (702); the ventilation opening (701) is provided on the left and right sides of the elevator car (1), and the ventilation window (702) with an internal slot is installed in the ventilation opening (701).

6. A machine room-less elevator with a rear counterweight according to claim 5, characterized in that: The ventilation assembly (7) also includes a dust shield (703) and a filter (704); the dust shield (703) located above the slot is installed on the outside of the ventilation window (702), and the filter (704) is connected to the inside of the ventilation window (702) through magnetic attraction.

7. A machine room-less elevator with a rear counterweight according to claim 5, characterized in that: A movable plate (8) is connected to the inner side of the ventilation fan via a hinge, and the other side of the movable plate (8) is connected to the ventilation window (702) via a buckle. A purple light (9) located at the top is installed in the car (1).

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