A turnable plate type construction elevator car

Abstract

The utility model relates to an elevator car, specifically discloses a turn -plate type construction elevator car, including car body, the entrance and exit of being opened in one side of car body, the safety door of verticality being equipped with the entrance and exit, first drive arrangement is used to drive the safety door to lift, the pedal of being equipped with the entrance and exit, the pivot of being equipped with the lower side of pedal, second drive arrangement is used to drive the pedal and rotates along the pivot, first response device is equipped with the side of entrance and exit, and second response device is equipped with the inner bottom wall of car body, the pivot is connected with the lower side of entrance and exit and rotates, first response device sets up towards the safety door, second response device sets up towards the pedal, the turn -plate type construction elevator car of the utility model can open and close automatically and can make the safety door and foot pedal link together, avoids the accident to occur.

Description

Technical Field

[0001] This utility model relates to the technical field of elevator cars, and more specifically, to a flip-type construction elevator car. Background Technology

[0002] During construction, temporary elevators, as key equipment for the vertical transportation of personnel and materials, are typically erected close to the outside of the wall. When the temporary elevator reaches the designated floor or height, the traditional work process requires manual extension of the foot pedals inside the car to ensure they are stably placed on the corresponding floor platform before workers can access the floor to carry out their construction tasks.

[0003] However, this method of relying on manual operation has many drawbacks. On the one hand, the operation steps are cumbersome, and under the tight construction pace, workers may fail to complete each operation step properly due to fatigue, negligence, or other factors. On the other hand, this process poses significant safety hazards. If the car door closes unexpectedly and the foot pedal is not retracted in time, it can easily lead to serious safety accidents such as pinching or falling, which not only threatens the lives of construction workers but may also delay the progress of the project. Utility Model Content

[0004] The purpose of this utility model is to provide a flip-type construction elevator car that can automatically open and close and can link the safety door and foot pedal to prevent accidents.

[0005] This utility model is achieved through the following technical solution: The flip-type construction elevator car of this utility model includes a car body, an entrance / exit opened on one side of the car body, a safety door vertically installed at the entrance / exit, a first drive device for driving the safety door to rise and fall, a pedal installed at the entrance / exit, a rotating shaft installed under the pedal, a second drive device for driving the pedal to rotate along the rotating shaft, a first sensing device installed on the side of the entrance / exit, and a second sensing device installed on the bottom wall of the car body; the rotating shaft is rotatably connected to the lower side of the entrance / exit, the first sensing device is positioned facing the safety door, and the second sensing device is positioned facing the pedal.

[0006] Furthermore, vertically arranged slide rails are fixed on both sides of the entrance and exit, and the safety door is slidably disposed in the slide rails on both sides.

[0007] Furthermore, the first driving device includes a motor located on the top of the compartment, a winding roller located on the output shaft of the motor, a pulley located on the side wall of the top of the compartment, and a pull rope wound on the winding roller; the pull rope passes around the pulley and is fixedly connected to the upper end of the safety door.

[0008] Furthermore, the first sensing device is located in the middle of the slide rail; when the safety door moves to the upper limit position, the first sensing device is located below the slide rail.

[0009] Furthermore, the first sensing device is an infrared sensing device.

[0010] Furthermore, the second driving device includes a telescopic cylinder located below the compartment and a connecting rod located on the side of the pedal away from the compartment; the cylinder body of the telescopic cylinder is hinged to the lower side of the compartment, and the movable end of the telescopic cylinder is hinged to the connecting rod.

[0011] Furthermore, the second drive device also includes a pair of fixing bars horizontally disposed on the lower side wall of the body, a sliding plate horizontally slidably disposed between the pair of fixing bars, and a limiting component for fixing the position of the sliding plate; the cylinder body of the telescopic cylinder is hinged to the lower side of the sliding plate.

[0012] Furthermore, the limiting component includes a pair of insertion holes opened on the bottom wall of the compartment, and a locking block inserted into the insertion holes; the pair of insertion holes are both opened between the pair of fixing strips, and the distance between the pair of insertion holes is equal to the length of the slide plate; the pair of locking blocks respectively abut against both ends of the slide plate.

[0013] Furthermore, railings are provided on both sides of the pedal.

[0014] Furthermore, the second sensing device is a press-type sensing device; when the pedal is in a vertical state, one of the fences presses against the second sensing device.

[0015] The technical solution of this utility model has at least the following advantages and beneficial effects: The flip-type construction elevator car of this utility model closes the entrance and exit via a safety door during use. When the safety door is closed, the steps are inside the car. When the car reaches the corresponding floor, the safety door first rises under the action of a first drive device. When it rises to a designated height, it triggers a first sensor, which then activates a second drive device. The second drive device drives the steps to flip out of the car and into a horizontal position, so that the end of the steps away from the car rests on the corresponding floor of the building under construction. Workers can then enter the building floor where construction needs to be carried out through the entrance / exit and the steps. Then, the second drive device drives the steps to retract. When the steps are completely inside the car, the steps trigger the second sensor, which then activates the first drive device, which drives the safety door to descend, completely closing the entrance / exit. This not only facilitates worker access to and from the car, but the interconnected safety door and steps effectively ensure safety, reduce the probability of accidents, and improve worker safety during construction. Attached Figure Description

[0016] Figure 1 A structural schematic diagram of a flap-type construction elevator car in one state provided in an embodiment of this utility model; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 A schematic diagram of the two states of the flap-type construction elevator car provided in an embodiment of this utility model; Figure 4 This is a schematic diagram of the internal structure of the compartment provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the bottom structure of the compartment provided in an embodiment of the present utility model; Figure 6 This is a schematic diagram of the structure of the second driving device portion provided in an embodiment of the present utility model; Figure 7 This is a schematic diagram of the telescopic cylinder portion provided in an embodiment of the present utility model; Figure 8 This is a schematic diagram of the card block portion provided in an embodiment of the present utility model.

[0017] Icons: 10-Box body, 11-Entrance / Exit, 12-Safety door, 13-Step, 14-Rotating shaft, 15-Slide rail, 16-First sensor, 17-Second sensor, 18-Fence, 20-First drive unit, 21-Motor, 22-Winding roller, 23-Pull rope, 24-Pulley, 30-Second drive unit, 31-Telescopic cylinder, 32-Connecting rod, 33-Fixing strip, 34-Slide plate, 35-Socket, 36-Clamping block. Detailed Implementation

[0018] Example The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 -Appendix Figure 8As shown. The flip-type construction elevator car of this embodiment includes a car body 10, an entrance 11 opened on one side of the car body 10, a safety door 12 vertically installed at the entrance 11, a first drive device 20 for driving the safety door 12 to rise and fall, a step 13 installed at the entrance 11, a rotating shaft 14 installed on the lower side of the step 13, a second drive device 30 for driving the step 13 to rotate along the rotating shaft 14, a first sensor 16 installed on the side of the entrance 11, and a second sensor 17 installed on the inner bottom wall of the car body 10; the rotating shaft 14 is rotatably connected to the lower side of the entrance 11, the first sensor 16 is installed facing the safety door 12, and the second sensor 17 is installed facing the step 13. Specifically, during use, the entrance / exit 11 is closed via the safety door 12. When the safety door 12 is closed, the pedal 13 is inside the compartment 10. When the compartment 10 reaches the corresponding floor, the safety door 12 first rises under the action of the first drive device 20. When it rises to the designated height, the first sensor device 16 is triggered, and then the second drive device 30 is activated. The second drive device 30 drives the pedal 13 to flip out from inside the compartment 10 and be in a horizontal state (as shown in the attached diagram). Figure 1-2 (As shown), so that the end of the pedal 13 away from the compartment 10 rests on the corresponding floor of the building under construction, and then workers can enter the building floor to be constructed through the entrance 11 and the pedal 13. Then the second drive device 30 drives the pedal 13 to retract. When the pedal 13 is completely inside the compartment 10, the pedal 13 triggers the second sensor 17, and then activates the first drive device 20. The first drive device 20 drives the safety door 12 to descend, completely closing the entrance 11 (as shown in the attached diagram). Figure 3-4 (As shown). This not only facilitates workers' entry and exit from the compartment 10, but also the safety door 12 and the step 13 are linked together, which can effectively ensure safety, reduce the probability of accidents, and improve the safety of workers during construction.

[0019] In this embodiment, vertically arranged slide rails 15 are fixed on both sides of the entrance / exit 11, and the safety door 12 is slidably disposed on both sides within the slide rails 15. Specifically, by setting the slide rails 15, the safety door 12 can be raised and lowered more stably.

[0020] The first driving device 20 in this embodiment includes a motor 21 located at the top of the compartment 10, a winding roller 22 located on the output shaft of the motor 21, a pulley 24 located on the top side wall of the compartment 10, and a pull rope 23 wound around the winding roller 22; the pull rope 23 passes over the pulley 24 and is fixedly connected to the upper end of the safety door 12. Specifically, the motor 21 drives the winding roller 22 to rotate, causing the pull rope 23 to wind and tighten around the winding roller 22, thereby pulling the safety door 12 up and down. When the motor 21 reverses, the safety door 12 can descend under its own weight. The pulley 24 on the side of the compartment effectively reduces the wear of the pull rope 23. This structure is relatively simple, cost-effective, and easy to install and maintain. In addition, conventional structures such as electric push rod drive mechanisms, hydraulic drive mechanisms, and linear slide drive mechanisms can also be used.

[0021] In this embodiment, the first sensing device 16 is located in the middle of the slide rail 15; when the safety door 12 moves to its upper limit, the first sensing device 16 is located below the slide rail 15. The first sensing device 16 is an infrared sensing device. Specifically, when the safety door 12 blocks the entrance / exit 11, the safety door 12 also blocks the first sensing device 16; when the safety door 12 is fully raised, the safety door 12 no longer blocks the first sensing device 16, at which point the first sensing device 16 is triggered once. In detail, the first sensing device 16 uses a photoelectric sensor, which works based on the photoelectric effect principle and can efficiently convert light signals into electrical signals for output. Given its flexible measurement method, diverse measurable parameters, and numerous advantages such as non-contact, high precision, high reliability, and rapid response, it is widely used in various detection and control fields. In the application scenario of this construction elevator car, to accurately detect the rising height of the safety door 12, a slotted photoelectric switch can be selected, such as Omron's E3S-GS series products, like the E3S-GS30E4 model. This type of slotted photoelectric switch is a through-beam photoelectric sensor, consisting of a light-emitting part and a light-receiving part. The light-emitting part emits light, and the light-receiving part receives light. When the safety door 12 rises under the action of the first drive device 20, and when the safety door 12 rises to a designated height, it just so as not to block the light path, the light signal received by the light-receiving part changes, thereby triggering the sensor to output a corresponding electrical signal change. This provides feedback to the control system that the safety door 12 has reached the designated height, providing a start signal for the subsequent flipping action of the pedal 13.

[0022] In this embodiment, the second driving device 30 includes a telescopic cylinder 31 located below the compartment 10 and a connecting rod 32 located on the side of the pedal 13 away from the compartment 10. The cylinder body of the telescopic cylinder 31 is hinged to the lower side of the compartment 10, and the movable end of the telescopic cylinder 31 is hinged to the connecting rod 32. Specifically, the telescopic cylinder 31 and the connecting rod 32 can push the pedal 13 to rotate within a 90-degree range around the pivot 14.

[0023] The second driving device 30 in this embodiment further includes a pair of fixing bars 33 horizontally disposed on the lower side wall of the compartment 10, a sliding plate 34 horizontally slidably disposed between the pair of fixing bars 33, and a limiting component for fixing the position of the sliding plate 34; the cylinder body of the telescopic cylinder 31 is hinged to the lower side of the sliding plate 34. The limiting component includes a pair of insertion holes 35 opened on the bottom wall of the compartment 10, and a locking block 36 inserted into the insertion holes 35; the pair of insertion holes 35 are both opened between the pair of fixing bars 33, and the distance between the pair of insertion holes 35 is equal to the length of the sliding plate 34; the pair of locking blocks 36 respectively abut against both ends of the sliding plate 34. Specifically, the limiting component can fix the slide plate 34, thereby preventing the telescopic cylinder 31 from moving horizontally and only rotating within a certain range. When a malfunction occurs that prevents the telescopic cylinder 31 from operating, the locking block 36 in the limiting component can be removed from the socket 35. In this way, the slide plate 34 is freed from the restriction of the locking block 36 and can move horizontally, thereby allowing the telescopic cylinder 31 to move as well. Then, the pedal 13 can be manually operated to rotate, so that the pedal 13 can be manually operated in an emergency.

[0024] In this embodiment, railings 18 are provided on both sides of the pedal 13. Specifically, the railings 18 make it safer for people to pass through the pedal 13.

[0025] In this embodiment, the second sensing device 17 is a press-type sensing device; when the pedal 13 is in a vertical state, one of the railings 18 presses against the second sensing device 17. Specifically, the second sensing device 17 uses a pressure-type (press-type) sensor, which can sense pressure signals and convert the pressure signals into usable output electrical signals according to a specific rule. Among many types of pressure sensors, resistance strain gauge pressure sensors are more suitable for this scenario. Its working principle is to utilize the characteristic that the resistance value of a resistance strain gauge changes when subjected to pressure, and to indirectly measure the pressure by measuring the change in resistance value. When the pedal 13 is completely inside the compartment 10, the railing 18 will apply a certain pressure to the pressure sensor, causing the resistance strain gauge of the pressure sensor to deform, resulting in a change in resistance value. The sensor converts this change in resistance value into an electrical signal output. After receiving the signal, the control system determines that the pedal 13 has been completely retracted, thereby activating the first drive device 20, driving the safety door 12 to descend, and closing the entrance 11. More simply, the second sensing device 17 can also be replaced by a press-type switch. Regarding the simple structure of the first sensing device 16 and the second sensing device 17 working together, both are connected to the elevator car's control system. When the first sensing device 16 (photoelectric sensor) detects that the safety door 12 has risen to a designated height and outputs a signal change, this signal is transmitted to the control system. The control system then activates the second drive device 30, causing the pedal 13 to flip out from inside the car body 10. When the pedal 13 is fully retracted, triggering a signal change in the second sensing device 17 (pressure sensor), this signal is also transmitted to the control system. The control system then activates the first drive device 20 to complete the descent of the safety door 12. Through this linkage structure, the orderly coordination of the actions of the safety door 12 and the pedal 13 is achieved, ensuring the safety and efficiency of the construction elevator car during use.

[0026] In summary, the flip-type construction elevator car of this embodiment closes the entrance / exit 11 via the safety door 12 during use. When the safety door 12 is closed, the step 13 is inside the car body 10. When the car body 10 reaches the corresponding floor, the safety door 12 first rises under the action of the first drive device 20. When it rises to a designated height, it triggers the first sensor device 16, which then activates the second drive device 30. The second drive device 30 drives the step 13 to flip out from inside the car body 10 and into a horizontal state, so that the end of the step 13 away from the car body 10 rests on the corresponding floor of the construction building. Then, workers can enter the building floor where construction needs to be carried out through the entrance / exit 11 and the step 13. Then, the second drive device 30 drives the step 13 to retract. When the step 13 is completely inside the car body 10, the step 13 triggers the second sensor device 17, which then activates the first drive device 20. The first drive device 20 drives the safety door 12 to descend, completely closing the entrance / exit 11. This not only facilitates workers' entry and exit from the compartment 10, but also ensures safety by linking the safety door 12 and the step 13 together, thereby reducing the probability of accidents and improving the safety of workers during construction.

[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A turntable construction elevator car, characterized by: Includes a body (10), an entrance (11) opened on one side of the body (10), a safety door (12) vertically installed at the entrance (11), a first drive device (20) for driving the safety door (12) to rise and fall, a pedal (13) installed at the entrance (11), a rotating shaft (14) installed under the pedal (13), a second drive device (30) for driving the pedal (13) to rotate along the rotating shaft (14), a first sensor device (16) installed on the side of the entrance (11), and a second sensor device (17) installed on the inner bottom wall of the body (10). The rotating shaft (14) is rotatably connected to the lower side of the entrance (11), the first sensing device (16) is disposed facing the safety door (12), and the second sensing device (17) is disposed facing the pedal (13).

2. The flip-type construction elevator car according to claim 1, characterized in that: Both sides of the entrance (11) are fixed with vertically arranged slide rails (15), and both sides of the safety door (12) are slidably arranged in the slide rails (15).

3. The turntable jib construction elevator car of claim 2, wherein: The first driving device (20) includes a motor (21) located on the top of the compartment (10), a winding roller (22) located on the output shaft of the motor (21), a pulley (24) located on the top side wall of the compartment (10), and a pull rope (23) wound on the winding roller (22). The pull rope (23) passes around the pulley (24) and is fixedly connected to the upper end of the safety door (12).

4. The turntable jib construction elevator car of claim 2, wherein: The first sensing device (16) is located in the middle of the slide rail (15); when the safety door (12) moves to the upper limit position, the first sensing device (16) is located below the slide rail (15).

5. The turntable jib construction elevator car of claim 1, wherein: The first sensing device (16) is an infrared sensing device.

6. The flip-type construction elevator car according to claim 1, characterized in that: The second drive device (30) includes a telescopic cylinder (31) located below the body (10) and a connecting rod (32) located on the side of the pedal (13) away from the body (10); The cylinder body of the telescopic cylinder (31) is hinged to the lower side of the box body (10), and the movable end of the telescopic cylinder (31) is hinged to the connecting rod (32).

7. The turntable jib construction elevator car of claim 6, wherein: The second drive device (30) further includes a pair of fixing bars (33) horizontally disposed on the lower side wall of the body (10), a sliding plate (34) horizontally slidably disposed between the pair of fixing bars (33), and a limiting component for fixing the position of the sliding plate (34); The cylinder body of the telescopic cylinder (31) is hinged to the lower side of the slide plate (34).

8. The turntable jib construction elevator car of claim 7, wherein: The limiting component includes a pair of insertion holes (35) opened on the bottom wall of the compartment (10), and a locking block (36) inserted into the insertion holes (35); A pair of the aforementioned insertion holes (35) are both located between a pair of the aforementioned fixing strips (33), and the distance between the pair of the aforementioned insertion holes (35) is equal to the length of the sliding plate (34); a pair of the aforementioned locking blocks (36) respectively abut against both ends of the sliding plate (34).

9. The turntable jib construction elevator car of claim 1, wherein: Both sides of the pedal (13) are equipped with railings (18).

10. The turntable jib construction elevator car of claim 9, wherein: The second sensing device (17) is a press-type sensing device; when the pedal (13) is in a vertical state, one of the fences (18) presses on the second sensing device (17).

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