Safety protection device of elevator

Abstract

The utility model relates to the technical field of elevators, and discloses an elevator safety protection device which comprises a wall body, long mounting columns are arranged at the left end and the right end of the front side of the wall body, circular mounting plates are rotationally connected to the upper end and the lower end of the front side of the wall body, and a driving chain wheel is fixedly connected to the front side of the circular mounting plate at the top. A driven chain wheel is fixedly connected to the front side of the mounting circular plate at the bottom, a motor is arranged in the middle of the front side of the wall body, the output end of the motor is fixedly connected with a speed reducer, and the rear side of the speed reducer is connected with the front side of the driving chain wheel. According to the utility model, the control device processes information of the detection element and commands the execution mechanism to operate, when the platform reaches a preset height or the bottom, the limit switch is powered off, the motor is stopped and overloaded, the weight sensor triggers anti-overload protection, the temperature of the motor is too high, the temperature sensor activates emergency braking, and in an emergency mode, the alarm device continuously gives an alarm until manual reset is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of elevator especially relates to elevator safety device. BACKGROUND

[0002] The elevator safety device is a series of devices installed on the elevator for ensuring the safe operation of the elevator, preventing accidents and protecting the safety of personnel and goods, which can prevent falling accidents, control the running position, protect the safety of personnel, prevent equipment damage and reduce the harm of accidents.

[0003] Through the search, the patent announcement number of China is CN216334716U, which discloses a kind of safety device of elevator, including elevator body, the inside installation of the feed hopper of elevator body is protected device, the protected device includes fixed frame, the inside fixed connection of fixed frame has two installation beams, the top sealing installation of fixed frame is close to two installation beams Safety net is installed, and the bottom of two installation beams is equipped with connecting mechanism, and the bottom of connecting mechanism is connected with the inner wall of the feed hopper of elevator body respectively.The safety device of this kind of elevator is simple and reasonable in structure, novel in design, easy to install, can effectively improve the safety of existing elevator in use, has higher practicality, the existing elevator safety protection measure generally exists slow response speed, low intelligent degree Problem, especially in front of sudden failure cannot make correct judgment and effective response quickly, cause the probability of serious safety accident to increase, influence the normal operation of enterprise and the personal safety of staff. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides an elevator safety device, which aims to improve the problem that the existing technology cannot make correct judgment and effective response quickly in front of sudden failure, causing the probability of serious safety accident to increase.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: elevator safety protection device, including wall, the left and right ends of the front side of wall are provided with the installation long column, the upper and lower ends of the front side of wall are rotatably connected with the installation round plate, the front side of installation round plate on top is fixedly connected with driving sprocket, the front side of installation round plate on bottom is fixedly connected with driven sprocket, the middle part of the front side of wall is provided with motor, the output of motor is fixedly connected with speed reducer, the rear side of speed reducer is connected with the front side of driving sprocket, the front side of installation long column is fixedly connected with main frame, the top of main frame is fixedly connected with fixed square, driving sprocket is transmission connection with driven sprocket through chain, the front side of chain is fixedly connected with the clamping rod, the front side of clamping rod is fixedly connected with the bearing platform, the left and right ends of the rear side of fixed square are fixedly connected with the connecting long rod, the outside of bearing platform is installed with fixed mechanism, and the fixed mechanism is used to fix goods.

[0006] Through the above technical scheme: control device handles detection element information, and instructs the execution mechanism to operate, and when the platform reaches the preset height or the bottom, the limit switch is powered off, and the motor stops, when overload, the weight sensor triggers the overload protection, when the motor temperature is too high, the temperature sensor activates the emergency brake, in the emergency mode, the alarm device continuously alarms until manual reset.

[0007] As a further description of the above technical scheme:

[0008] The fixed mechanism includes a rotating rod, the rotating rod is installed on the left side of the bearing platform, the front and rear ends of the bearing platform are fixedly connected with pulleys, the sides away from each other of the two pulleys are fixedly connected with fixed rods, the right sides of the front and rear ends of the bearing platform are fixedly connected with fixed blocks, the right side of the fixed block is fixedly connected with a connecting column, the top of the connecting column is fixedly connected with a fixed belt, and the other end of the fixed belt is slidably connected with the outside of the pulley.

[0009] Through the above technical scheme: when using the bearing platform, rotating the handle to make the rotating ring, the rod and the pulley rotate, thereby loosening the fixed belt, after placing the goods at the bottom of the fixed belt, rotating the handle in the opposite direction to tighten the fixed belt, ensuring the stability of the goods, and this operation can prevent the goods from shaking and being damaged during transportation.

[0010] As a further description of the above technical scheme:

[0011] The middle part of the rotating rod is fixedly connected with a rotating ring, and the outside of the rotating ring is fixedly connected with a plurality of handles at equal intervals.

[0012] Through the above technical scheme: by installing the rotating ring and the handle, the rotating rod can be easily rotated.

[0013] As a further description of the above technical scheme:

[0014] The left end of the bearing platform is provided with a mounting round plate, and the left side of the mounting round plate is fixedly connected with a clamping rod.

[0015] Through the mounting of the clamping rod, unnecessary rotation of the rotating rod is avoided.

[0016] Further description of the above technical scheme is as follows:

[0017] A control device is mounted on the front side of the main frame, a weight sensor is mounted on the front side top of the control device, and a moving wheel is fixedly connected to the bottom front and rear ends of the main frame.

[0018] Through the mounting of the control device, various signals can be collected and corresponding instructions can be made.

[0019] Further description of the above technical scheme is as follows:

[0020] A temperature sensor is mounted on the front side left end of the control device, and a limit switch is mounted on the front side right end of the control device.

[0021] Through the mounting of the temperature sensor, it can be avoided that the staff cannot know when the temperature is too high.

[0022] Further description of the above technical scheme is as follows:

[0023] A clamping groove plate is mounted on the front side top of the main frame, and a notice board is arranged in the clamping groove plate.

[0024] Through the mounting of the notice board, the staff can be reminded.

[0025] Further description of the above technical scheme is as follows:

[0026] A safety protection module is mounted on the rear side middle part of the main frame, an emergency braking device is arranged on the rear side right end of the safety protection module, a display device is arranged on the rear side top of the safety protection module, an anti-overload protection device is mounted on the rear side right end of the bottom of the safety protection module, and an alarm device is arranged on the rear side left end of the bottom of the safety protection module.

[0027] When the device detects data changes exceeding the set threshold value, the emergency braking device will trigger the immediate stop, avoid further danger, and the anti-overload protection device can cut off the power supply in an instant to prevent the motor from overheating, and finally the alarm device issues an alarm to notify the staff to handle the abnormal situation.

[0028] The utility model has the advantages of:

[0029] 1. The utility model discloses a control device handles detection element information, directs executive mechanism operation, and when the platform reaches the preset height or bottom, limit switch power off, motor stops, when overload, weight sensor triggers anti overload protection, and when motor temperature is too high, temperature sensor activates emergency brake, under emergency mode, alarm device continues to alarm until manual reset.

[0030] 2. The utility model discloses when using the bearing platform, rotate the handle and make the rotating ring and rod and pulley rotate to loosen the fixed band, place goods at the bottom of the fixed band, reverse rotate the handle and make the pulley tighten the fixed band, ensure that goods are stable, and such operation can prevent goods from shaking and damaging in transportation. DRAWINGS

[0031] Figure 1 It is the perspective view of the safety protection device of the elevator that the utility model provides;

[0032] Figure 2 It is the side view of the safety protection device of the elevator that the utility model provides;

[0033] Figure 3 It is the plan view of the safety protection device of the elevator that the utility model provides;

[0034] Figure 4 It is the local structure schematic diagram of the safety protection device of the elevator that the utility model provides;

[0035] Figure 5 It is the local structure display diagram of the safety protection device of the elevator that the utility model provides.

[0036] Legend:

[0037] 1, wall body;2, fixed mechanism;201, rotating rod;202, fixed rod;203, pulley;204, fixed band;205, fixed block;206, connecting column;3, fixed square;4, chain;5, install long column;6, driving sprocket;7, speed reducer;8, motor;9, driven sprocket;10, bearing platform;11, connecting long rod;12, moving wheel;13, main frame;14, limit switch;15, control device;16, temperature sensor;17, weight sensor;18, signboard;19, clamping groove board;20, safety protection module;21, rotating ring;22, install round plate;23, clamping rod;24, emergency brake device;25, anti overload protection device;26, display device;27, alarm device;28, handle. DETAILED DESCRIPTION

[0038] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0039] With reference to Figure 1 , Figure 2 and Figure 4 , the present application provides an embodiment: the safety protection device of the elevator, including wall body 1, the left and right ends of the front side of wall body 1 are provided with installation long column 5, the upper and lower ends of the front side of wall body 1 are rotatably connected with installation round plate 22, the front side of the top installation round plate 22 is fixedly connected with driving sprocket 6, the front side of the bottom installation round plate 22 is fixedly connected with driven sprocket 9, the middle part of the front side of wall body 1 is provided with motor 8, the output end of motor 8 is fixedly connected with speed reducer 7, the rear side of speed reducer 7 is connected with the front side of driving sprocket 6, the front side of installation long column 5 is fixedly connected with main frame 13, the top of main frame 13 is fixedly connected with fixed square block 3, driving sprocket 6 is drivingly connected with driven sprocket 9 through chain 4, the front side of chain 4 is fixedly connected with clamping rod 23, the front side of clamping rod 23 is fixedly connected with bearing platform 10, the left and right ends of the rear side of fixed square block 3 are fixedly connected with connecting long rod 11, the outer side of bearing platform 10 is provided with fixing mechanism 2, fixing mechanism 2 is used for fixing goods, the middle part of the front side of main frame 13 is provided with control device 15, the front side top of control device 15 is provided with weight sensor 17, the front and rear ends of the bottom of main frame 13 are fixedly connected with moving wheel 12, the left end of the front side of control device 15 is provided with temperature sensor 16, the right end of the front side of control device 15 is provided with limit switch 14, the middle part of the rear side of main frame 13 is provided with safety protection module 20, the right end of the rear side of safety protection module 20 is provided with emergency brake device 24, the top of the rear side of safety protection module 20 is provided with display device 26, the right end of the bottom of the rear side of safety protection module 20 is provided with overload protection device 25, the left end of the bottom of the rear side of safety protection module 20 is provided with alarm device 27;

[0040] Specifically, when the hoist is in normal operation, the control device 15 continuously receives feedback information from various detection elements. After calculation and processing, this information forms corresponding control commands and is transmitted to the actuator. When the carrying platform 10 rises to the predetermined height or descends to the set bottom position, the limit switch 14 will trigger the circuit to disconnect, causing the motor 8 to stop automatically. When an overload occurs during the movement, that is, when the actual load measured by the weight sensor 17 exceeds the preset maximum allowable value, the control device 15 will immediately send a command to the overload protection device 25 to quickly cut off the power, thereby preventing damage to the motor 8. In addition, if the internal temperature of the motor 8 reaches the critical point, the temperature sensor 16 will also activate the emergency braking device 24 to stop the entire device in an emergency. Once the system enters the emergency mode, the alarm device 27 will continue to sound regardless of the cause, until a manual reset operation is performed.

[0041] Reference Figure 1 , Figure 3 and Figure 5 The fixing mechanism 2 includes a rotating rod 201, which is installed on the left side of the bearing platform 10. The front and rear ends of the bearing platform 10 are fixedly connected to pulleys 203. The two pulleys 203 are fixedly connected to the opposite sides of each other. The front and rear ends of the right side of the bearing platform 10 are fixedly connected to fixing blocks 205. The right side of the fixing blocks 205 is fixedly connected to a connecting column 206. The top of the connecting column 206 is fixedly connected to a fixing belt 204. The other end of the fixing belt 204 is slidably connected to the outside of the pulleys 203. The middle part of the rotating rod 201 is fixedly connected to a rotating ring 21. The outer side of the rotating ring 21 is fixedly connected to multiple handles 28 at equal intervals. The front and rear sides of the left end of the bearing platform 10 are provided with mounting circular plates 22. The left side of the mounting circular plates 22 is fixedly connected to a locking rod 23.

[0042] Specifically, in the process of using the bearing platform 10, first, the goods are placed on the bearing platform 10, then the handle 28 is rotated, the rotation of the handle 28 drives the rotation ring 21 to rotate, the rotation of the rotation ring 21 drives the rotation rod 201 to rotate, with the rotation of the rotation rod 201, the two pulleys 203 connected thereto also rotate, the rotation of the pulleys 203 causes the fixed belts 204 to gradually loosen, thereby providing space for the placement of the goods, at this time, the goods are placed at the bottom of the two fixed belts 204 to ensure the stability of the goods on the bearing platform 10, after the goods are placed, the handle 28 is reversely rotated, the reverse rotation of the handle 28 drives the rotation rod 201 to reversely rotate, thereby driving the pulleys 203 to rotate in the opposite direction, the reverse rotation of the pulleys 203 causes the fixed belts 204 to gradually tighten, and finally the goods are fixed on the bearing platform 10, then the clamping rod 23 is clamped into the corresponding clamping groove to avoid unnecessary rotation of the rotation rod 201, the model of the motor 8 is Y90S-6, the chain 4 selects a 40A standard specification roller chain, the material is carbon steel, the surface is galvanized for corrosion protection, the emergency brake device 24 is equipped with an electromagnetic disc brake, the maximum braking torque can reach one hundred and fifty Nm, the weight sensor 17 adopts a tensile and compressive bidirectional range zero to two T resistance strain gauge type sensor, the accuracy level is not less than one percent zero one FS, and the temperature sensor 16 selects a PT100 platinum resistance thermometer, the measurement range is negative fifty degrees Celsius to two hundred and fifty degrees Celsius.

[0043] Referring to Figure 1 , Figure 2 and Figure 3 , the front side top of the main frame 13 is provided with a clamping groove plate 19, and the inside of the clamping groove plate 19 is provided with a notice board 18.

[0044] Specifically, through the installation of the notice board 18, the staff can be reminded.

[0045] Working principle: in the normal working state of the lifting machine, the control device 15 continuously receives feedback information from each detection element, forms a control command after calculation and processing, and transmits the control command to the execution mechanism, when the bearing platform 10 rises to the predetermined height or drops to the bottom position, the limit switch 14 triggers the circuit to be disconnected, and the motor 8 automatically stops running, if overload occurs during movement, that is, the actual load measured by the weight sensor 17 exceeds the preset maximum allowable value, the control device 15 will immediately send instructions to the anti-overload protection device 25 to act, and the motor 8 will be quickly powered off to prevent damage, in addition, if the internal temperature of the motor 8 reaches the critical point, the temperature sensor 16 will also activate the emergency brake device 24 to make the whole device stop urgently, once the system enters the emergency mode, no matter what causes it, the alarm device 27 will continuously sound until manual reset;

[0046] In the use of the bearing platform 10, when the goods are placed on it, the handle 28 is rotated to rotate the rotating ring 21, and then the rotating rod 201 and the two pulleys 203 are rotated, and then the fixing belts 204 are loosened, at this time, the goods can be fixed at the bottom of the two fixing belts 204, then the handle 28 is reversely rotated to reversely rotate the rotating rod 201 and tighten the fixing belts 204 with the pulleys 203, and then the goods can be fixed; through the above process, unnecessary shaking of the device during transportation is avoided, and damage to the goods is avoided.

[0047] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A safety guard for an elevator, comprising a wall (1), characterized in that: The left and right ends of the front side of the wall body (1) are provided with mounting long columns (5), the upper and lower ends of the front side of the wall body (1) are rotatably connected with mounting circular plates (22), the front side of the mounting circular plate (22) at the top is fixedly connected with a driving sprocket (6), the front side of the mounting circular plate (22) at the bottom is fixedly connected with a driven sprocket (9), the middle part of the front side of the wall body (1) is provided with a motor (8), the output end of the motor (8) is fixedly connected with a speed reducer (7), the rear side of the speed reducer (7) is connected with the front side of the driving sprocket (6), the front side of the mounting long column (5) is fixedly connected with a main frame (13), the top of the main frame (13) is fixedly connected with a fixed square block (3), the driving sprocket (6) is in transmission connection with the driven sprocket (9) through a chain (4), the front side of the chain (4) is fixedly connected with a clamping rod (23), the front side of the clamping rod (23) is fixedly connected with a bearing platform (10), the rear side of the fixed square block (3) is fixedly connected with a connecting long rod (11) at the left and right ends, the outer side of the bearing platform (10) is provided with a fixing mechanism (2), and the fixing mechanism (2) is used for fixing the goods.

2. The hoist safety shield of claim 1, wherein: The fixing mechanism (2) comprises a rotating rod (201), the rotating rod (201) is installed on the left side of the bearing platform (10), the front and rear ends of the bearing platform (10) are fixedly connected with pulleys (203), the sides away from each other of the two pulleys (203) are fixedly connected with fixed rods (202), the right side of the bearing platform (10) is fixedly connected with fixed blocks (205) at the front and rear ends, the right side of the fixed block (205) is fixedly connected with a connecting column (206), the top of the connecting column (206) is fixedly connected with a fixed belt (204), and the other end of the fixed belt (204) is in sliding connection with the outer side of the pulley (203).

3. The hoist safety shield of claim 2, wherein: The middle part of the rotating rod (201) is fixedly connected with a rotating ring (21), and a plurality of handles (28) are fixedly connected with the outer side of the rotating ring (21) at equal intervals.

4. The hoist safety shield of claim 1, wherein: The left end of the bearing platform (10) is provided with mounting circular plates (22) on the front and rear sides, and the left side of the mounting circular plate (22) is fixedly connected with a clamping rod (23).

5. The hoist safety shield of claim 1, wherein: The front side of the main frame (13) is provided with a control device (15) in the middle part, the front side of the control device (15) is provided with a weight sensor (17) at the top, and the bottom of the main frame (13) is fixedly connected with moving wheels (12) at the front and rear ends.

6. The hoist safety shield of claim 5, wherein: The front side of the control device (15) is provided with a temperature sensor (16) at the left end, and the front side of the control device (15) is provided with a limit switch (14) at the right end.

7. The hoist safety shield of claim 1, wherein: The front side of the main frame (13) is provided with a clamping groove plate (19) at the top, and the inside of the clamping groove plate (19) is provided with a signboard (18).

8. The hoist safety shield of claim 1, wherein: The rear middle part of the main frame (13) is provided with a safety protection module (20), the right end of the rear side of the safety protection module (20) is provided with an emergency brake device (24), the top of the rear side of the safety protection module (20) is provided with a display device (26), the right end of the bottom of the rear side of the safety protection module (20) is provided with an anti-overload protection device (25), and the left end of the bottom of the rear side of the safety protection module (20) is provided with an alarm device (27).

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