A digital elevator car precise coverage wireless communication device

Abstract

The present invention provides a digital elevator car precise coverage wireless communication device, including an elevator shaft and a car, wherein a guide rail is installed in the elevator shaft, pulleys matching the guide rails are installed on both sides of the car, a wireless communication device and a mounting groove are installed at the bottom of the car, a fan that can blow air to the wireless communication device is installed in the mounting groove through a rotating shaft, grooves for mounting pulleys are provided on both sides of the bottom of the car, a mounting cavity is provided between the groove and the mounting groove, a power generation mechanism that can move left and right is installed in the mounting cavity, the power generation mechanism is electrically connected to the wireless communication device, and a first transmission assembly that can transmit the power of the pulley to the power generation mechanism is installed in the groove. The device can drive the power generation mechanism to power the wireless communication device through the rotation of the guide pulley during the movement of the car, without the need for a separate lead, and can generate electricity manually in an emergency.

Description

Technical Field

[0001] The present invention relates to the technical field of digital elevator cars, and in particular to a precise coverage wireless communication device for a digital elevator car. Background Art

[0002] An elevator is a vertical lift powered by an electric motor and equipped with a box-shaped cabin. It is used to carry people or goods in multi-story buildings. With the advancement of technology, elevator cars have also begun to use wireless communication devices to transmit information. Wireless communication devices are generally installed on the top or bottom of the car, and most of them use Zigbee wireless communication technology.

[0003] However, the current power supply method for wireless communication devices in elevators is mostly wired. When encountering higher floors, the cables are longer, which increases the load and the cost. In addition, when encountering emergencies such as power outages, the trapped people in the elevator cannot seek help from the outside world through the wireless communication devices. Summary of the invention

[0004] In view of the above problems, the present invention provides a digital elevator car precise coverage wireless communication device, which can drive the power generation mechanism to power the wireless communication device through the rotation of the guide pulley during the movement of the car, without the need for separate leads, and can generate electricity manually in an emergency.

[0005] To solve the above problems, the technical solution adopted by the present invention is:

[0006] A digital elevator car with precise coverage of wireless communication device comprises an elevator shaft and a car, wherein a guide rail is installed in the elevator shaft, pulleys matching the guide rails are installed on both sides of the car, a wireless communication device and a mounting groove are installed at the bottom of the car, a fan that can blow air to the wireless communication device is installed in the mounting groove through a rotating shaft, grooves for mounting the pulleys are provided on both sides of the bottom of the car, a mounting cavity is provided between the groove and the mounting groove, a power generation mechanism that can move left and right is installed in the mounting cavity, the power generation mechanism is electrically connected to the wireless communication device, a first transmission assembly that can transmit power of the pulley to the power generation mechanism is installed in the groove, a second transmission assembly that can receive power from the first transmission assembly and drive the rotating shaft to rotate is installed in the mounting groove, and a manual power generation assembly connected to the power generation mechanism is installed at the inner bottom of the car.

[0007] Preferably, the power generation mechanism comprises a shell slidably mounted in the mounting cavity, a rotating rod is rotatably connected in the shell, a rotor of the generator is mounted on the rotating rod, and a stator matching the rotor is mounted in the shell.

[0008] Preferably, the first transmission assembly includes a first transmission shaft rotatably connected in the groove, the first transmission shaft is connected to the pulley via a first bevel gear pair, and the inner end of the first transmission shaft extends into the installation cavity.

[0009] Preferably, the second transmission assembly comprises a second transmission shaft rotatably connected in the mounting groove, and the second transmission shaft is connected to the rotating shaft via a second bevel gear pair.

[0010] Preferably, both ends of the rotating rod extend out of the housing, and a plurality of limiting plates are fixed to the extending ends, and the ends of the first transmission shaft and the second transmission shaft facing each other are each provided with limiting grooves that cooperate with the plurality of limiting plates.

[0011] Preferably, the manual power generation assembly includes a knob rotatably connected to the top of the shell, the knob and the rotating rod are connected by a third bevel gear pair, the bottom of the car is provided with an opening for the knob to pass through, and the shell and the inner wall of the installation cavity are elastically connected by a first spring.

[0012] Preferably, a bottom plate is placed on the bottom of the car, and a cover plate is hinged on the bottom plate.

[0013] Preferably, liquid storage cavities are provided on both sides of the car, and the liquid storage cavities on both sides are respectively filled with aluminum sulfate liquid and ammonium bicarbonate liquid. A mixing tank is provided at the bottom of the car, and an airbag is installed between the slot of the mixing tank and the bottom plate. A liquid outlet pipe is connected between the bottom of the liquid storage cavity and the mixing tank, and an electromagnetic valve is installed in the liquid outlet pipe. A current relay is installed at the bottom of the car, and the power generation mechanism, the electromagnetic valve and the current relay are electrically connected.

[0014] Preferably, the upper end of the rotating shaft extends into the mixing tank and is equipped with a stirring blade.

[0015] Preferably, a piston is provided in the liquid storage chamber, a fixed plate is fixedly connected to the top of the piston in the liquid storage chamber, a counter plate is elastically installed above the fixed plate through a second spring, two connecting rods penetrating the fixed plate are fixed to the bottom of the counter plate, the penetrating ends of the connecting rods are fixed to the piston, and the second spring is electrically connected to the current relay.

[0016] The beneficial effects of the present invention are:

[0017] 1. By installing the power generation mechanism and the first transmission assembly, the pulley can roll along the guide rail when the car moves up and down, thereby driving the rotor to rotate in the stator to generate electricity and power the wireless communication device without the need for separate wires.

[0018] 2. By setting up a manual power generation component, when there is a power outage and people are trapped in the car, they can open the cover, pull the shell to move by the knob, so that the rotating rod is separated from the first transmission shaft, and then turn the knob to generate electricity manually, emergency power supply for the wireless communication device, and seek help from the outside world.

[0019] 3. By installing the second transmission assembly and the fan, during the movement of the car, the power of the pulley can drive the fan to rotate through the second transmission assembly, blowing air to the wireless communication device to dissipate heat and enable the wireless communication device to work normally.

[0020] 4. By installing a current relay, when the elevator encounters a fault and the car drops rapidly, the current increases. When it reaches the threshold of the current relay, the solenoid valve opens, and the aluminum sulfate liquid and ammonium bicarbonate liquid flow into the mixing tank through the outlet pipe. The two mix and instantly produce a large amount of gas, which inflates the airbag and lifts the bottom plate, providing protection for the internal personnel and reducing the impact caused by the car falling.

[0021] 5. By installing the piston and the second spring, when the current relay is turned on, the power generation mechanism simultaneously supplies power to the second spring, and the second spring contracts when energized, which can push the piston downward, thereby quickly squeezing out the solution inside the liquid storage chamber, increasing the reaction volume, and then increasing the gas volume, thereby improving the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 A cross-sectional view of the bottom of the car proposed by the present invention;

[0024] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at point A;

[0025] Figure 4 This is a schematic diagram of the connection between the rotating rod and the second transmission shaft proposed by the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of Example 2;

[0027] Figure 6 This is a structural schematic diagram of Example 3.

[0028] In the figure: 1 elevator shaft, 2 guide rails, 3 car, 4 knob, 5 bottom plate, 6 pulley, 7 fan, 8 wireless communication device, 9 first bevel gear pair, 10 mounting groove, 11 second bevel gear pair, 12 rotating shaft, 13 cover plate, 14 second transmission shaft, 15 mounting cavity, 16 third bevel gear pair, 17 stator, 18 housing, 19 rotor, 20 first spring, 21 rotating rod, 22 limiting plate, 23 liquid storage cavity, 24 aluminum sulfate liquid, 25 ammonium bicarbonate liquid, 26 air bag, 27 stirring blade, 28 mixing tank, 29 current relay, 30 solenoid valve, 31 liquid outlet pipe, 32 first transmission shaft, 33 piston, 34 fixing plate, 35 connecting rod, 36 second spring, 37 back plate. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] Example 1

[0032] Reference Figure 1-4 A digital elevator car precise coverage wireless communication device comprises an elevator shaft 1 and a car 3, wherein a guide rail 2 is installed in the elevator shaft 1, and pulleys 6 cooperating with the guide rail 2 are installed on both sides of the car 3, and a wireless communication device 8 and an installation groove 10 are installed at the bottom of the car 3, wherein the wireless communication device 8 is a Zigbee wireless communication device, and a fan 7 capable of blowing air to the wireless communication device 8 is installed in the installation groove 10 through a rotating shaft 12, and grooves for installing the pulley 6 are provided on both sides of the bottom of the car 3, and an installation cavity 15 is provided between the groove and the installation groove 10, and a power generation mechanism that can move left and right is installed in the installation cavity 15, and the power generation mechanism is electrically connected to the wireless communication device 8, and a first transmission component capable of transmitting power of the pulley 6 to the power generation mechanism is installed in the groove, and a second transmission component capable of receiving power of the first transmission component and driving the rotating shaft 12 to rotate is installed in the installation groove 10, and a manual power generation component connected to the power generation mechanism is installed at the inner bottom of the car 3.

[0033] Specifically, the power generation mechanism includes a shell 18 slidably installed in the installation cavity 15, a rotating rod 21 is rotatably connected in the shell 18, a rotor 19 of the generator is installed on the rotating rod 21, and a stator 17 cooperating with the rotor 19 is installed in the shell 18. During the up and down movement of the car 3, the pulley 6 rolls along the guide rail 2, drives the first transmission shaft 32 to rotate through the first bevel gear pair 9, and then drives the rotating rod 21 to rotate, drives the rotor 19 to rotate between the stator 17, cuts the magnetic lines of force to generate current to power the wireless communication device 8.

[0034] Specifically, the first transmission assembly includes a first transmission shaft 32 rotatably connected in the groove, the first transmission shaft 32 is connected to the pulley 6 via a first bevel gear pair 9 , and the inner end of the first transmission shaft 32 extends into the installation cavity 15 .

[0035] Furthermore, the second transmission assembly includes a second transmission shaft 14 rotatably connected in the mounting groove 10; the second transmission shaft 14 is connected to the rotating shaft 12 via a second bevel gear pair 11; the rotating rod 21 drives the second transmission shaft 14 to rotate; and under the transmission of the second bevel gear pair 11, the fan 7 is driven to rotate via the rotating shaft 12 to dissipate heat for the wireless communication device 8.

[0036] Furthermore, both ends of the rotating rod 21 extend out of the housing 18 , and a plurality of limiting plates 22 are fixed to the extending ends. The ends of the first transmission shaft 32 facing the second transmission shaft 14 are both provided with limiting grooves that cooperate with the plurality of limiting plates 22 .

[0037] Specifically, the manual power generation component includes a knob 4 rotatably connected to the top of the shell 18, the knob 4 is connected to the rotating rod 21 through a third bevel gear pair 16, an opening for the knob 4 to pass through is provided at the bottom of the car 3, the shell 18 and the inner wall of the installation cavity 15 are elastically connected through a first spring 20, when a power outage occurs, the power supply to the car 3 is cut off, at this time the cover plate 13 on the bottom plate 5 can be opened, the knob 4 is pulled, the shell 18 is driven to move right, and the multiple limit plates 22 on the rotating rod 21 leave the limit grooves on the first transmission shaft 32 and separate from each other, at this time, the knob 4 is turned to drive the rotating rod 21 to rotate through the third bevel gear 16, thereby realizing the manual power generation process.

[0038] Furthermore, a bottom plate 5 is placed on the bottom of the car 3 , and a cover plate 13 is hinged on the bottom plate 5 to facilitate opening of the cover plate 13 .

[0039] During the up and down movement of the car 3, the pulley 6 rolls along the guide rail 2, drives the first transmission shaft 32 to rotate through the first bevel gear pair 9, and then drives the rotating rod 21 to rotate, drives the rotor 19 to rotate between the stators 17, cuts the magnetic lines of flux to generate current to power the wireless communication device 8. At the same time, the rotating rod 21 drives the second transmission shaft 14 to rotate, and under the transmission of the second bevel gear pair 11, drives the fan 7 to rotate through the rotating shaft 12 to dissipate heat for the wireless communication device 8.

[0040] When a power outage occurs, the power supply to the car 3 is cut off. At this time, the cover plate 13 on the bottom plate 5 can be opened, and the knob 4 can be pulled to drive the shell 18 to move right, so that the multiple limit plates 22 on the rotating rod 21 leave the limit grooves on the first transmission shaft 32 and separate from each other. At this time, the knob 4 is turned to drive the rotating rod 21 to rotate through the third bevel gear 16 to realize the manual power generation process, emergency power supply for the wireless communication device, and seek help from the outside world. The knob 4 is released, and the shell 18 is reset under the action of the spring 20, and the rotating rod 21 is docked with the first transmission shaft 32 again.

[0041] Example 2

[0042] Reference Figure 5 The difference between this embodiment and embodiment 1 is that liquid storage chambers 23 are provided on both sides of the car 3, and the liquid storage chambers 23 on both sides are respectively filled with aluminum sulfate liquid 24 and ammonium bicarbonate liquid 25, a mixing tank 28 is provided at the bottom of the car 3, an air bag 26 is installed between the notch of the mixing tank 28 and the bottom plate 5, a liquid outlet pipe 31 is connected between the bottom of the liquid storage chamber 23 and the mixing tank 28, an electromagnetic valve 30 is installed in the liquid outlet pipe 31, a current relay 29 is installed at the bottom of the car 3, the power generation mechanism, the electromagnetic valve 30 and the current relay 29 are electrically connected, and the upper end of the rotating shaft 12 extends into the mixing tank 28 and is installed with a stirring blade 27.

[0043] When the elevator encounters a malfunction and the car 3 descends rapidly, the rotation speed of the rotor 19 increases, thereby increasing the current. When the threshold of the current relay 29 is reached, the circuit is connected, the solenoid valve 30 opens, and the aluminum sulfate liquid 24 and the ammonium bicarbonate liquid 25 in the liquid storage chambers 23 on both sides flow into the mixing tank 28 through the liquid outlet pipe 31. The two are mixed and a large amount of gas is generated instantly. Through the second transmission assembly, the shaft 12 drives the stirring blade 27 to rotate rapidly, thereby increasing the mixing speed, accelerating the gas generation speed, and causing the airbag 26 to expand rapidly, supporting the bottom plate 5, providing protection for the internal personnel, and reducing the impact caused by the fall of the car 3.

[0044] Example 3

[0045] Reference Figure 6 The difference between this embodiment and embodiment 2 is that a piston 33 is provided in the liquid storage chamber 23, and a fixing plate 34 is fixedly connected above the piston 33 in the liquid storage chamber 23. A resist plate 37 is elastically installed above the fixing plate 34 through a second spring 36. Two connecting rods 35 penetrating the fixing plate 34 are fixed at the bottom of the resist plate 37. The penetrating ends of the connecting rods 35 are fixed to the piston 33, and the second spring 36 is electrically connected to the current relay 29.

[0046] When the car 3 descends rapidly, the current relay 29 opens, and the power generation mechanism energizes the second spring 36 at the same time. The second spring 36 is energized and contracts, and then the piston 33 is pushed downward through the abutment plate 37 and the connecting rod 35. Since the pulley 6 rotates at a fast speed, the power generation is large, which can make the degree and speed of contraction of the second spring 36 faster, and the corresponding liquid in the liquid storage chamber 23 is quickly squeezed out, increasing the reaction amount, and then increasing the gas amount, thereby improving the protection effect.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A digital elevator car precise coverage wireless communication device, comprising an elevator shaft (1) and a car (3), wherein a guide rail (2) is installed in the elevator shaft (1), and pulleys (6) matching the guide rail (2) are installed on both sides of the car (3), characterized in that: A wireless communication device (8) and a mounting groove (10) are installed at the bottom of the car (3); a fan (7) capable of blowing air toward the wireless communication device (8) is installed in the mounting groove (10) via a rotating shaft (12); grooves for mounting a pulley (6) are provided on both sides of the bottom of the car (3); a mounting cavity (15) is provided between the groove and the mounting groove (10); a power generation mechanism that can move left and right is installed in the mounting cavity (15); the power generation mechanism is electrically connected to the wireless communication device (8); a first transmission component capable of transmitting power from the pulley (6) to the power generation mechanism is installed in the groove; a second transmission component capable of receiving power from the first transmission component and driving the rotating shaft (12) to rotate is installed in the mounting groove (10); and a manual power generation component connected to the power generation mechanism is installed at the inner bottom of the car (3); A bottom plate (5) is placed on the bottom of the car (3), and a cover plate (13) is hingedly connected to the bottom plate (5); Liquid storage chambers (23) are provided on both sides of the car (3); a mixing tank (28) is provided on the bottom of the car (3); an air bag (26) is installed between the notch of the mixing tank (28) and the bottom plate (5); a liquid outlet pipe (31) is connected between the bottom of the liquid storage chamber (23) and the mixing tank (28); a solenoid valve (30) is installed in the liquid outlet pipe (31); a current relay (29) is installed at the bottom of the car (3); and the power generation mechanism, the solenoid valve (30) and the current relay (29) are electrically connected; The liquid storage chamber (23) is provided with a piston (33), a fixed plate (34) is fixedly connected to the liquid storage chamber (23) above the piston (33), a stop plate (37) is elastically mounted above the fixed plate (34) via a second spring (36), two connecting rods (35) penetrating the fixed plate (34) are fixed to the bottom of the stop plate (37), the penetrating ends of the connecting rods (35) are fixed to the piston (33), and the second spring (36) is electrically connected to the current relay (29); When the car (3) descends rapidly, the current relay (29) is opened, and the power generation mechanism simultaneously energizes the second spring (36), causing the second spring (36) to contract, thereby pushing the piston (33) downward through the abutment plate (37) and the connecting rod (35), and quickly squeezing out the corresponding liquid in the liquid storage chamber (23).

2. A digital elevator car precise coverage wireless communication device according to claim 1, characterized in that: The power generation mechanism comprises a housing (18) slidably mounted in a mounting cavity (15), a rotating rod (21) rotatably connected in the housing (18), a rotor (19) of a generator being mounted on the rotating rod (21), and a stator (17) matching with the rotor (19) being mounted in the housing (18).

3. A digital elevator car precise coverage wireless communication device according to claim 2, characterized in that: The first transmission assembly comprises a first transmission shaft (32) rotatably connected in the groove, the first transmission shaft (32) and the pulley (6) are connected via a first bevel gear pair (9), and the inner end of the first transmission shaft (32) extends into the mounting cavity (15).

4. A digital elevator car precise coverage wireless communication device according to claim 3, characterized in that: The second transmission assembly comprises a second transmission shaft (14) rotatably connected in the mounting groove (10), and the second transmission shaft (14) is connected to the rotating shaft (12) via a second bevel gear pair (11).

5. A digital elevator car precise coverage wireless communication device according to claim 4, characterized in that: Both ends of the rotating rod (21) extend out of the housing (18), and a plurality of limiting plates (22) are fixed to the extending ends; and the ends of the first transmission shaft (32) and the second transmission shaft (14) facing each other are each provided with limiting grooves that cooperate with the plurality of limiting plates (22).

6. A digital elevator car precise coverage wireless communication device according to claim 2, characterized in that: The manual power generation assembly comprises a knob (4) rotatably connected to the top of a housing (18); the knob (4) is connected to a rotating rod (21) via a third bevel gear pair (16); an opening is provided at the bottom of the car (3) for the knob (4) to pass through; and the housing (18) is elastically connected to the inner wall of the mounting cavity (15) via a first spring (20).

7. A digital elevator car precise coverage wireless communication device according to claim 6, characterized in that: The liquid storage chambers (23) on both sides are respectively filled with aluminum sulfate liquid (24) and ammonium bicarbonate liquid (25).

8. A digital elevator car precise coverage wireless communication device according to claim 7, characterized in that: The upper end of the rotating shaft (12) extends into the mixing tank (28) and is provided with a stirring blade (27).

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