Energy saving elevator device based on magnetic shielding characteristics

Abstract

The application provides an energy-saving elevator device based on magnetic shielding characteristics, and relates to the technical field of elevator equipment, which comprises a car, a counterweight and a traction rope, further comprises ferromagnetic plates fixed on the inner walls of the sliding well of the counterweight on both sides, the ferromagnetic plates on both sides extend along the height direction of the sliding well of the counterweight and are oppositely arranged; the counterweight is provided with a magnetic attraction assembly corresponding to the ferromagnetic plates; the counterweight comprises a support, the support comprises two fixed plates in the interior, and a blocking sliding plate is slidingly arranged on both sides of the support. The application has the advantages that the counterweight is used to replace the traditional counterweight, and the weight of the counterweight changes according to the weight of the car, so that the weight of the car and the counterweight always remains equal or close to equal, the working power of the traction motor is reduced, energy is saved and environmental protection is achieved, and the risk of imbalance caused by the great difference between the weight of the counterweight and the weight of the car is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of elevator equipment technology, and in particular to an energy-saving elevator device based on magnetic shielding characteristics. Background Technology

[0002] With the improvement of living environment and the increase in urban population density, elevators have become one of the essential supporting facilities in urban communities. Enclosed elevators occupy little space and are very convenient and safe for carrying goods or people, so they have become the first choice for high-rise building elevator installation. The structure of an enclosed elevator generally includes a car and a counterweight car. The car and the counterweight car are connected by traction ropes, and the traction motor drives the traction ropes to achieve the lifting and lowering of the car.

[0003] The counterweight is a component of the elevator traction system, and its function is to balance the weight of the car. Located on the other side of the car, it is connected to the top of the car via traction steel cables. The counterweight plays an energy-saving role in the elevator traction system because theoretical calculations optimize the elevator load before the counterweight is added. Generally, the weight of the counterweight is approximately equal to the car's own weight plus half of the elevator's rated load. The elevator counterweight is also called the weight balancing system. The main function of this system is to relatively balance the weight of the car. During elevator operation, it keeps the weight difference between the car and the counterweight within a limit, ensuring smooth elevator operation as much as possible.

[0004] Currently, there are already many publicly disclosed patents related to enclosed elevators. Chinese Patent Announcement No. CN208916559U discloses a type of elevator, the disclosed technical content of which is: a car is installed in the elevator shaft, a counterweight is installed in the sliding shaft of the balancing component, a traction motor is installed above the elevator shaft, the traction motor is connected to the upper end of the car and the counterweight respectively through traction ropes, and the lower end of the counterweight and the car are connected to the lower end of the car respectively through transmission chains; a tension sensor is installed on the top of the car, and the traction rope is connected to the tension sensor.

[0005] However, the aforementioned elevator patent has a drawback: the weight of the counterweight is fixed. Since the weight of the car varies depending on whether it is empty or carrying passengers, the weight difference between the counterweight and the car also changes. When the weight difference is large, the driving force of the traction motor on the traction rope is greater, leading not only to increased energy consumption but also increasing the risk of overshooting or falling. Therefore, it is necessary to develop an elevator to overcome these drawbacks. Summary of the Invention

[0006] This invention overcomes the shortcomings of the prior art and provides an energy-saving elevator device based on magnetic shielding characteristics to overcome the above-mentioned technical problems.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0008] An energy-saving elevator device based on magnetic shielding characteristics includes a car, a balance component, and a traction rope. The car is slidably connected to the car shaft, the balance component is slidably connected to the balance component sliding shaft, one end of the traction rope is connected to the car, and the other end of the traction rope is connected to the balance component.

[0009] It also includes ferromagnetic plates fixed on both sides of the inner wall of the sliding well of the balancer. The ferromagnetic plates on both sides extend along the height direction of the sliding well of the balancer and are arranged opposite to each other. The balancer is equipped with a magnetic attraction component, which is used in conjunction with the ferromagnetic plates.

[0010] The balancing component includes a bracket, which includes two fixed plates located inside the bracket, and barrier plates that are slidably mounted on both sides of the bracket; a magnet is mounted on the bracket, which is located between the two fixed plates, and the barrier plates are located on the side of the fixed plates closer to the ferromagnetic plates.

[0011] The fixing plate has at least one first cutout, and the blocking slide plate has at least one second cutout.

[0012] It also includes an adjustment traction mechanism for pulling the barrier slide. The adjustment traction mechanism is connected to the barrier slide and pulls the barrier slide to make the barrier slide move relative to the fixed plate, thereby adjusting the overlap area between the first cutout and the second cutout.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The system includes a car and a balancing mechanism. A magnetic plate is installed along the height of the balancing mechanism's sliding shaft and is fixed to the inner wall of the shaft. The balancing mechanism is equipped with a magnetic attraction component, which works in conjunction with the magnetic plate. When someone enters the car, the traction mechanism adjusts the barrier slide to control the overlap area between the first and second openings. The more people enter, the larger the overlap area between the first and second openings, reducing the magnetic attraction force on the magnetic plate and causing the magnetic component itself to drop downwards, making the weight of the balancing mechanism and the car roughly equal. When someone exits the car, the car's weight decreases, the barrier slide gradually returns to its original position, and the overlap area between the first and second openings gradually decreases. The magnetic attraction force on the magnetic plate increases, reducing the downward force of the magnetic component itself. This system has been tested multiple times. The adjustment allows for setting the first and second cutouts to be completely offset (i.e., without overlapping area). In this case, the weight of the balancer is the total weight of the car when fully loaded. When the car is unloaded, the overlap area between the first and second cutouts is maximized. At this time, the magnetic attraction force of the magnetic component on the ferromagnetic plate is maximized, reducing the weight of the balancer to the weight of the car's own components. This ensures that the balancer and the car always maintain approximately the same weight regardless of the number of passengers, similar to the principle of a balance scale. By using a balancer instead of a traditional counterweight, and with the weight of the balancer changing according to the weight of the car, the weights of the two always remain equal or nearly equal. This structure reduces the operating power of the traction motor, saving energy and protecting the environment. It also greatly reduces the risk of imbalance and sudden falls or overshoots caused by a large difference in weight between the balancer and the car. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and are used together with the embodiments of the invention to explain the invention. They do not constitute a limitation of the invention. In the drawings:

[0016] Figure 1 This is a general schematic diagram of the elevator system;

[0017] Figure 2 This is a schematic diagram of an explosion involving an elevator assembly.

[0018] Figure 3 This is a schematic diagram of the overall balancing components;

[0019] Figure 4 Schematic diagram of the explosion of the balancing component Figure 1 ;

[0020] Figure 5 Schematic diagram of the explosion of the balancing component Figure 2 ;

[0021] Figure 6 This is a schematic diagram of the support structure;

[0022] Figure 7 This is a schematic diagram showing the second cutout in the blocking slide and the first cutout in the fixing plate completely overlapping when viewed from the front; the shaded area is the overlapping area of ​​the second cutout and the first cutout.

[0023] Figure 8 This is a schematic diagram of the slide plate being blocked from moving upwards, viewed from the front; the shaded area is the overlapping area of ​​the second cutout and the first cutout.

[0024] Figure 9 An exploded view of the elevator car;

[0025] Figure 10 This diagram shows the positional relationship between the floating plate, the first spring component, the first rotating wheel, the second rotating wheel, and the tension rope; at this time, the car is unloaded.

[0026] Figure 11 This is a diagram showing the positional relationship of the floating plate, the first spring component, the first rotating wheel, the second rotating wheel, and the tension rope; at this time, the car is in a passenger-carrying state.

[0027] In the picture:

[0028] 101. Car shaft; 102. Balancing component sliding shaft;

[0029] 2. Car; 2011. Car floor; 202. Floating plate; 203. Spring components; 204. First roller; 205. Second roller;

[0030] 3. Balancing component; 301. Bracket; 3012. Guide groove; 3013. Fixing plate; 30131. First cutout; 3014. Fixing shaft; 302. Magnet; 303. Barrier slide; 3031. Second cutout; 3033. First hinge; 3034. Second hinge; 30341. Elongated hole; 3035. Hook and pull component;

[0031] 4. Traction rope; 5. Tension rope; 7. Ferromagnetic plate. Detailed Implementation

[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0033] like Figures 1 to 11 As shown, an energy-saving elevator device based on magnetic shielding characteristics includes a car 2, a balancer 3, and a traction rope 4. The car 2 is slidably connected to the car shaft 101, and the balancer 3 is slidably connected to the balancer sliding shaft 102. One end of the traction rope 4 is connected to the car 2, and the other end of the traction rope 4 is connected to the balancer 3. The traction motor drives the traction rope 4 to move, thereby causing the car 2 and the balancer 3 to rise and fall. The car 2 and the balancer 3 are connected by the traction rope 4.

[0034] It also includes ferromagnetic plates 7 fixed on both sides of the inner wall of the balancer sliding well 102. The ferromagnetic plates 7 on both sides extend along the height direction of the balancer sliding well 102 and are arranged opposite to each other. In the actual structure, guide members are provided on both sides of the balancer 3, and guide rails are correspondingly provided on both sides of the inner wall of the balancer sliding well 102. The guide members are slidably connected to the guide rails, which helps the balancer 3 to slide smoothly up and down along the balancer sliding well 102. In this structure, the ferromagnetic plates 7 are provided on the side adjacent to the guide rails. That is, if the guide rails are provided on opposite sides in the balancer sliding well 102, then the ferromagnetic plates 7 are provided on the other opposite sides in the balancer sliding well 102. The guide rails and the ferromagnetic plates 7 do not affect each other's use.

[0035] The balancing component 3 is equipped with a magnetic attraction assembly, which is used in conjunction with the ferromagnetic plate 7. The advantage of this invention is that by changing the attraction force of the magnetic attraction assembly on the ferromagnetic plate 7, the weight of the balancing component 3 can be changed according to the number of passengers in the car 2 (or according to the total weight of the car 2 and the passengers). Ultimately, the weight of the balancing component 3 is made close to the total weight of the car 2 and the passengers, that is, the weight on both sides is made close to the same. Thus, the traction motor can output a lower power to drive the traction rope 4 to move, thereby driving the car 2 and the balancing component 3 to rise and fall.

[0036] The balancing component 3 includes a bracket 301, which includes two fixed plates 3013 located inside the bracket 301. Blocking slide plates 303 are slidably arranged on both sides of the bracket 301. A magnet 302 is provided on the bracket 301, which is located between the two fixed plates 3013. The blocking slide plate 303 is located on the side of the fixed plate 3013 near the ferromagnetic plate 7. Guide grooves 3012 are also provided on both sides of the bracket 301. The blocking slide plate 303 is slidably arranged in the guide grooves 3012. The guide grooves 3012 help to limit the longitudinal sliding of the blocking slide plate 303.

[0037] The fixing plate 3013 has at least one first cutout 30131, and the blocking slide plate 303 has at least one second cutout 3031. In this embodiment, the first cutout 30131 and the second cutout 3031 are the same size. The magnetic attraction path of the magnet 302 to the ferromagnetic plates 7 on both sides is mainly through the overlapping area of ​​the first cutout 30131 and the second cutout 3031. The larger the overlapping area of ​​the first cutout 30131 and the second cutout 3031, the stronger the magnetic attraction force of the magnet 302 to the ferromagnetic plates 7. Conversely, the smaller the overlapping area of ​​the first cutout 30131 and the second cutout 3031, the weaker the magnetic attraction force of the magnet 302 to the ferromagnetic plates 7. When the first cutout 30131 and the second cutout 3031 are completely misaligned, the magnetic attraction force of the magnet 302 to the ferromagnetic plates 7 is the smallest.

[0038] Magnetic attraction is mutual. When the magnetic attraction force of magnet 302 on ferromagnetic plate 7 is at its minimum, that is, when the magnetic attraction force of ferromagnetic plate 7 on magnet 302 is at its minimum, the weight of balance component 3 is at its heaviest. It can be set so that the total weight of balance component 3 at this time is approximately equal to the total weight of car 2 plus the rated full load of passengers. When the magnetic attraction force of magnet 302 on ferromagnetic plate 7 is at its maximum, that is, when the magnetic attraction force of ferromagnetic plate 7 on magnet 302 is at its maximum, the weight of balance component 3 is at its lightest. It can be set so that the total weight of balance component 3 at this time is approximately equal to the weight of car 2 when it is empty.

[0039] Therefore, by adjusting the weight of the balancer 3 to be approximately equal to the weight of the car 2, the operating power of the traction motor can be reduced, which also greatly reduces the risk of the car 2 falling or crashing.

[0040] like Figure 7 As shown, when the first cutout 30131 and the second cutout 3031 completely overlap, the magnetic attraction force of the magnet 302 on the ferromagnetic plate 7 is at its maximum; Figure 8 As shown, when the blocking slide plate 303 moves upward, the first cutout 30131 and the second cutout 3031 are misaligned. At this time, the overlapping area of ​​the first cutout 30131 and the second cutout 3031 becomes smaller, and the magnetic attraction force of the magnet 302 on the iron plate is minimal. Therefore, by pulling the blocking slide plate 303 up and down in the guide groove 3012, the second cutout 3031 and the first cutout 30131 can be misaligned, that is, the second cutout 30131 can be adjusted. The overlapping area of ​​the first cutout 30131 and the first cutout 30131 is adjusted to regulate the magnetic attraction force of the magnet 302 on the ferromagnetic plate 7; that is, the enclosure of the magnet 302 by the blocking slide plate 303 and the fixing plate 3013 is adjusted. The larger the enclosure and blocking area of ​​the magnet 302, the smaller the magnetic attraction force of the magnet 302 on the ferromagnetic plate 7, and the smaller the enclosure and blocking area of ​​the magnet 302, the greater the magnetic attraction force of the magnet 302 on the ferromagnetic plate 7.

[0041] The following further elaborates on the structure that drives the blocking slide 303 to move up and down:

[0042] The present invention also includes an adjusting traction mechanism for pulling the blocking slide plate 303. The adjusting traction mechanism is connected to the blocking slide plate 303 and pulls the blocking slide plate 303 to move relative to the fixed plate 3013, thereby adjusting the overlapping area of ​​the first cutout 30131 and the second cutout 3031. Specifically, the adjusting traction mechanism includes a floating plate 202, a tension rope 5, and a traction component.

[0043] The car 2 includes a car floor 2011, and a floating plate 202 is located above the car floor 2011. A first rotating wheel 204 is provided on the lower surface of the floating plate 202, and a second rotating wheel 205 is provided on the upper surface of the car floor 2011. The first rotating wheel 204 and the second rotating wheel 205 are arranged face to face and offset. One end of the tension rope 5 is connected to the car 2, the middle section of the tension rope 5 passes between the first rotating wheel 204 and the second rotating wheel 205, and then the other end is connected to the traction member, which is connected to the barrier slide 303.

[0044] It also includes a first spring member 203 for lifting the floating plate 202 upwards to reset it. The lower end of the first spring member 203 is connected to the car floor 2011, and the upper end of the first spring member 203 is connected to the floating plate 202. The first spring member 203 enables the floating plate 202 to reset and bounce back after being pressed down.

[0045] The traction component includes a first hinge 3033 and a second hinge 3034 that are hinged together; a fixed shaft 3014 is provided on the bracket 301, one end of the second hinge 3034 is rotatably connected to the fixed shaft 3014, and the other end of the second hinge 3034 is hinged to one end of the first hinge 3033, and the other end of the first hinge 3033 is hinged to the blocking slide plate 303; a hook 3035 is provided on the second hinge 3034, and the hook 3035 is connected to the tension rope 5; therefore, pulling the hook 3035 upward will eventually pull up the blocking slide plate 303, thereby changing the overlapping area of ​​the first cutout 30131 and the second cutout 3031.

[0046] The purpose of the above structure is:

[0047] Unloaded state: When the car 2 is unloaded (that is, when the floating plate 202 is not under pressure), such as Figure 10 As shown, the tension rope 5 passes in a straight line between the first rotating wheel 204 and the second rotating wheel 205 (that is, the corresponding segment of the tension rope 5 between the first rotating wheel 204 and the second rotating wheel 205 is straight at this time).

[0048] Passenger status: When someone enters car 2 (i.e., when the floating plate 202 is subjected to pressure and sinks), such as Figure 11As shown, the first rotating wheel 204 will press down towards the second rotating wheel 205, causing the tension rope 5 to form an up-and-down winding state, that is, to increase the length of the corresponding section of the tension rope 5 between the first rotating wheel 204 and the second rotating wheel 205 (at this time, the corresponding section is curved); since one end of the tension rope 5 is connected and fixed to the car 2, the end of the tension rope 5 connected to the hook 3035 will pull the hook 3035 upward, that is, to pull the blocking slide plate 303 upward, thereby reducing the overlap area between the second cutout 3031 and the first cutout 30131, reducing the magnetic attraction force of the ferromagnetic plate 7 on the magnet 302, that is, making the balancer 3 heavier.

[0049] The greater the pressure on the floating plate 202 (i.e., the more people enter the car body 201), the greater the descent of the floating plate 202, the smaller the overlap area between the second cutout 3031 and the first cutout 30131, and the heavier the balance component 3 becomes.

[0050] The bracket 301 is equipped with a second spring for resetting the barrier slide 303 when it is pulled down. When a person exits the car body 201, the second spring pulls the barrier slide 303 down, thereby increasing the overlap area between the second cutout 3031 and the first cutout 30131. This increases the magnetic attraction force of the ferromagnetic plate 7 to the magnet 302, making the balancer 3 lighter. At the same time, the downward pull of the barrier slide 303 pulls the tension rope 5 down, which, together with the first spring 203, lifts the floating plate 202 upward. The length of the tension rope 5 between the car floor 2011 and the floating plate 202 becomes shorter.

[0051] The second hinge 3034 has an elongated hole 30341, and a hook 3035 is connected to the elongated hole 30341. The hook 3035 can be adjusted in position within the elongated hole 30341 and then locked. Specifically, the lower end of the hook 3035 can have a threaded section. After adjusting the position, the nut can be tightened to fix it. By adjusting the position of the hook 3035 in the elongated hole 30341, the distance by which the hook 3035 blocks the slide plate 303 from moving upward when it is pulled can be adjusted, that is, the overlap area of ​​the second cutout 3031 and the first cutout 30131 can be finely adjusted.

[0052] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An energy-saving elevator device based on magnetic shielding characteristics, characterized in that: Includes a car (2), a balancer (3) and a traction rope (4). The car (2) is slidably connected to the car shaft (101) and the balancer (3) is slidably connected to the balancer sliding shaft (102). One end of the traction rope (4) is connected to the car (2) and the other end of the traction rope (4) is connected to the balancer (3). It also includes ferromagnetic plates (7) fixed on both sides of the inner wall of the balance component sliding well (102). The ferromagnetic plates (7) on both sides extend along the height direction of the balance component sliding well (102) and are arranged opposite to each other. The balance component (3) is provided with a magnetic attraction component, which is used in conjunction with the ferromagnetic plates (7). The balancing component (3) includes a bracket (301), which includes two fixed plates (3013) located inside. Blocking slide plates (303) are slidably arranged on both sides of the bracket (301). A magnet (302) is provided on the bracket (301), which is located between the two fixed plates (3013). The blocking slide plate (303) is located on the side of the fixed plate (3013) close to the ferromagnetic plate (7). The fixed plate (3013) has at least one first cutout (30131), and the blocking slide plate (303) has at least one second cutout (3031). It also includes an adjustment traction mechanism for pulling the blocking slide plate (303). The adjustment traction mechanism is connected to the blocking slide plate (303) and pulls the blocking slide plate (303) to make the blocking slide plate (303) move relative to the fixed plate (3013), thereby adjusting the overlap area of ​​the first cutout (30131) and the second cutout (3031).

2. The energy-saving elevator device based on magnetic shielding characteristics according to claim 1, characterized in that: The adjusting traction mechanism includes a floating plate (202), a tension rope (5), and traction components; The car (2) includes a car floor plate (2011) and a floating plate (202) located above the car floor plate (2011); a first rotating wheel (204) is provided on the lower surface of the floating plate (202), and a second rotating wheel (205) is provided on the upper surface of the car floor plate (2011); the first rotating wheel (204) and the second rotating wheel (205) are arranged face to face and offset. One end of the tension rope (5) is connected to the car (2), the middle section of the tension rope (5) passes between the first wheel (204) and the second wheel (205), and the other end of the tension rope (5) is connected to the traction component, which is connected to the barrier slide (303).

3. The energy-saving elevator device based on magnetic shielding characteristics according to claim 2, characterized in that: It also includes a first spring member (203) for lifting the floating plate (202) upwards to reset it. The lower end of the first spring member (203) is connected to the car floor plate (2011), and the upper end of the first spring member (203) is connected to the floating plate (202).

4. The energy-saving elevator device based on magnetic shielding characteristics according to claim 2, characterized in that: The traction component includes a first hinge (3033) and a second hinge (3034) that are hinged together; a fixed shaft (3014) is provided on the bracket (301), one end of the second hinge (3034) is rotatably connected to the fixed shaft (3014), the other end of the second hinge (3034) is hinged to one end of the first hinge (3033), and the other end of the first hinge (3033) is hinged to the blocking slide plate (303); The second hinge (3034) is provided with a hook (3035), which is connected to the tension rope (5).

5. An energy-saving elevator device based on magnetic shielding characteristics according to claim 4, characterized in that: The second hinge (3034) has an elongated hole (30341), and the hook (3035) is connected to the elongated hole (30341).

6. An energy-saving elevator device based on magnetic shielding characteristics according to claim 1, characterized in that: The bracket (301) is also provided with a guide groove (3012), and the blocking slide plate (303) is slidably disposed in the guide groove (3012).

7. An energy-saving elevator device based on magnetic shielding characteristics according to claim 1, characterized in that: The bracket (301) is provided with a second spring for resetting the blocking slide (303) when it is pulled down.

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