Car roof structure capable of automatically accessing maintenance state

Abstract

The invention provides a car roof structure capable of automatically accessing to a maintenance state, which comprises a car roof arranged at the top of a car, a gap is arranged between the car roof and the car, directional holes are respectively formed in four vertexes of the car roof, four directional rods are correspondingly mounted at the top of the car, a micro switch is mounted at the top of the car, and the micro switch is connected with the car roof. The micro switch is electrically connected with an elevator system, a rubber pad is installed on the top of the lift car, two sets of overturning structures are installed on the top of the car roof, each overturning structure comprises an overturning shaft, the two ends of each overturning shaft are connected to the car roof through an installation frame, and the surface of each overturning shaft is sleeved with an overturning gear; by arranging the micro switch, when the car roof is pressed and the micro switch is started, the running state of the elevator can be automatically adjusted, and even if maintenance personnel forget to modulate the working state of the maintenance switch when entering the car roof, the personal safety of the elevator maintenance personnel can be guaranteed.

Description

Technical Field

[0001] The present invention belongs to the field of elevator maintenance, and specifically relates to a car top structure that automatically accesses the maintenance state. Background Art

[0002] An elevator refers to a permanent transportation device that serves several specific floors in a building, and its car moves on at least two rigid tracks perpendicular to the horizontal plane or with an inclination angle less than 15° with the plumb line. Currently, the most commonly used vertical lift elevators, in some cases, when the elevator breaks down, it is usually necessary to repair and inspect the components on the car top. The car top of the elevator car serves as an important maintenance platform. Maintenance personnel often need to maintain the elevator on the car top and operate the elevator at the same time. When maintenance personnel operate the elevator on the car top, there is a risk of personnel colliding with the top of the hoistway.

[0003] For villa elevators, the top floor is low, and the skill levels of maintenance personnel vary. When maintenance personnel work on the car top, if the elevator operation state is not promptly switched to the maintenance state, it is very likely that people outside the elevator will use the elevator normally. When the elevator reaches the top floor, due to the lack of safety space, it may cause personal injury to the maintenance personnel. Moreover, since the distances between the elevator shaft walls and the car at each floor are different, some are relatively large, making it unsafe for maintenance personnel to get on and off the car top as the car top does not have a protective function around it.

[0004] In summary, the present invention provides a car top structure that automatically accesses the maintenance state to solve the above problems. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a car top structure that automatically accesses the maintenance state to solve problems such as personal injury to maintenance personnel caused by the lack of safety space when the elevator reaches the top floor in the prior art.

[0006] A car top structure for automatically accessing the maintenance state, including a car top arranged on the top of the car. There is a gap between the car top and the car. Orientation holes are respectively opened at the four vertices of the car top. Four orientation rods are correspondingly installed at the top of the car. A microswitch is installed at the top of the car. The microswitch is electrically connected to the elevator system. A rubber pad is installed at the top of the car. Two groups of flipping structures are installed at the top of the car top. The flipping structure includes a flipping shaft. Both ends of the flipping shaft are connected to the car top through mounting brackets. A flipping gear is sleeved on the surface of the flipping shaft. A driving motor is arranged on one side of the flipping gear. The output shaft of the driving motor is fixedly connected with a driving gear. The driving gear is close to the flipping gear. A flipping main rod is rotatably connected to the flipping shaft. One end of the flipping main rod is rotatably connected to a flipping auxiliary rod. A guardrail assembly is arranged at the top of the car top. The guardrail assembly includes side guardrails and guardrail sliding rods. The side guardrails are movably arranged on both sides of the guardrail sliding rods. The side guardrails respectively penetrate through the flipping auxiliary rods.

[0007] Further, the rubber pad is in contact with the bottom of the car top, and the orientation rods respectively penetrate through the orientation holes movably.

[0008] Further, the mounting brackets are fixedly connected to the surface of the car top. Both ends of the flipping shaft are respectively rotatably connected to the mounting brackets. A protective cover is arranged on the surface of the mounting brackets. The protective cover is installed on the car top. A flipping notch is opened on the protective cover. The flipping main rod is arranged at the flipping notch.

[0009] Further, the driving motor is installed on the surface of the car top through a motor bracket. The driving gear and the output shaft of the driving motor are connected through a coupling. The driving gear meshes with the flipping gear.

[0010] Further, a sliding rod groove is opened at one end of the side guardrail. Both ends of the guardrail sliding rod respectively penetrate through the two sliding rod grooves movably and are slidably connected to the side guardrail. The side guardrail and the guardrail sliding rod are in a "C" - shaped structure.

[0011] Further, one end of the flipping main rod is fixedly sleeved on the surface of the flipping shaft, and the other end is rotatably connected to the flipping auxiliary rod through a hinge shaft. The side guardrail movably penetrates through one end of the flipping auxiliary rod away from the flipping main rod.

[0012] Further, the two groups of flipping structures are arranged in central symmetry and are arranged at both ends of the surface of the car top.

[0013] Further, an elevator based on the car top structure includes the following steps during operation: Step 1: For an elevator based on the car top structure, establish an automatic control system in the elevator: The automatic control system includes an elevator normal operation control mode, an elevator status detection module, and an elevator maintenance status control mode. Centered on the automatic control system, control the operating status of the elevator: Step 2: Conduct real-time determination of the elevator status: Based on the detection data of the elevator's speed sensor, distance sensor, and position sensor, the elevator status detection module receives the sensor data and determines the elevator status to complete the preliminary determination. Then, according to the detection status of the car top structure, conduct the second determination; Step 3: Switch the working mode of the elevator: Based on the determination result of the elevator status detection module, the automatic control system controls the elevator to switch between the elevator normal operation control mode and the elevator maintenance status control mode; The methods of mode switching and determination are as follows: S3.1: When the detection data of the speed sensor, distance sensor, and position sensor of the elevator during operation are all within the normal values, it is determined that the operating status of the elevator is normal. At this time, the automatic control system controls the elevator to enter the elevator normal operation control mode; S3.2: When the elevator status detection module detects that the elevator operating status is abnormal, the automatic control system controls the elevator to enter the elevator maintenance status control mode; S3.3: The staff completes the elevator maintenance and manually switches the elevator from the elevator maintenance status control mode to the elevator normal operation control mode to conduct the normal operation of the elevator and ensure the operation safety.

[0014] Further, in step 3, for the abnormal status determined in S3.2, the status includes the landing door status of non-leveling, the car weight, the start-stop status of the maintenance switch, the weight change status of the car top structure, and the status of whether the protective part of the car top structure is deployed. Specifically: When the landing door status of non-leveling is in the closed state and the car weight changes, enter the elevator maintenance status control mode; When the weight change status of the car top structure changes, enter the elevator maintenance status control mode; When the protective part of the car top structure is in the deployed state, enter the elevator maintenance status control mode.

[0015] Further, when determining that the elevator status is abnormal in S3.2, the form of the change in the weight change status of the car top structure is as follows: When a person enters the car top space, the overall structure of the car top is stressed and pressed down, activating the micro switch to disconnect the normal safety circuit of the elevator, and the elevator enters the elevator maintenance status control mode; The form of the protective part of the car top structure being in the deployed state is as follows: Start the drive motor, which sequentially drives through the drive gear, flip gear, flip shaft, main flip rod, and auxiliary flip rod to push the side guard rail upward, adjust the height of the protection component, and protect the car top.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a microswitch in the present invention, when the car top is under pressure and the microswitch is activated, the operating state of the elevator can be automatically adjusted. Even if the maintenance personnel forget to switch the inspection switch to the working state when entering the car top, the personal safety of the elevator maintenance personnel can be ensured.

[0017] 2. By setting a drive motor to control the flipping structure in the present invention, when the microswitch is activated, the drive motor can be simultaneously activated to deploy the flipping structure. Using the flippable, foldable, and deployable flipping structure, the height of the protection component can be adjusted to protect the surrounding of the car top. When the maintenance personnel are performing maintenance, it can provide protection and ensure the safety of the maintenance personnel. Description of the Drawings

[0018] Figure 1 is the three-dimensional view of the guardrail component of the present invention when it is opened; Figure 2 is the three-dimensional view of the guardrail component of the present invention when it is folded; Figure 3 is the three-dimensional view of the microswitch of the present invention; Figure 4 is the three-dimensional view of the flipping structure of the present invention; Figure 5 is the schematic flow chart when the elevator operating state is determined and the operating mode is switched in the present invention.

[0019] In the figure: 1. Car top; 2. Car body; 3. Orientation rod; 4. Protection sliding rod; 5. Side guard rail; 6. Protective cover; 7. Main flip rod; 8. Auxiliary flip rod; 9. Microswitch; 10. Rubber pad; 11. Flip shaft; 12. Flip gear; 13. Mounting bracket; 14. Drive gear; 15. Drive motor; 16. Hinge shaft. Detailed Embodiment

[0020] The following further describes in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention. Embodiment

[0021] As Figures 1-4As shown in the figure, the present invention provides a car top structure for automatically accessing the maintenance state, including a car top 1 provided on the top of a car 2. There is a gap between the car top 1 and the car 2. Directional holes are respectively opened at the four vertices of the car top 1, and four directional rods 3 are correspondingly installed on the top of the car 2. A microswitch 9 is installed on the top of the car 2, and the microswitch 9 is electrically connected to the elevator system. A rubber pad 10 is installed on the top of the car 2, and two groups of flipping structures are installed on the top of the car top 1. The flipping structure includes a flipping shaft 11. Both ends of the flipping shaft 11 are connected to the car top 1 through mounting brackets 13. A flipping gear 12 is sleeved on the surface of the flipping shaft 11. A driving motor 15 is arranged on one side of the flipping gear 12. The output shaft of the driving motor 15 is fixedly connected with a driving gear 14. The driving gear 14 is close to the flipping gear 12. A flipping main rod 7 is rotatably connected to the flipping shaft 11. One end of the flipping main rod 7 is rotatably connected to a flipping auxiliary rod 8. A guardrail assembly is arranged on the top of the car top 1. The guardrail assembly includes side guardrails 5 and guardrail sliding rods 4. The side guardrails 5 are movably arranged on both sides of the guardrail sliding rods 4. The side guardrails 5 respectively penetrate through the flipping auxiliary rods 8.

[0022] As an implementation manner of the present invention, the rubber pad 10 is in contact with the bottom of the car top 1, and the directional rods 3 respectively penetrate through the directional holes movably.

[0023] As an implementation manner of the present invention, the mounting bracket 13 is fixedly connected to the surface of the car top 1. Both ends of the flipping shaft 11 are respectively rotatably connected to the mounting bracket 13. A protective cover 6 is arranged on the surface of the mounting bracket 13. The protective cover 6 is installed on the car top 1. A flipping notch is opened on the protective cover 6. The flipping main rod 7 is arranged at the flipping notch.

[0024] As an implementation manner of the present invention, the driving motor 15 is installed on the surface of the car top 1 through a motor bracket. The driving gear 14 is connected to the output shaft of the driving motor 15 through a coupling. The driving gear 14 meshes with the flipping gear 12.

[0025] As an implementation manner of the present invention, a sliding rod groove is opened at one end of the side guardrail 5. Both ends of the guardrail sliding rod 4 respectively penetrate through the two sliding rod grooves movably and are slidably connected to the side guardrail 5. The side guardrail 5 and the guardrail sliding rod 4 are in a "C" - shaped structure.

[0026] As an implementation manner of the present invention, one end of the flipping main rod 7 is fixedly sleeved on the surface of the flipping shaft 11, and the other end is rotatably connected to the flipping auxiliary rod 8 through a hinge shaft 16. The side guardrail 5 movably penetrates through the end of the flipping auxiliary rod 8 far from the flipping main rod 7.

[0027] As an implementation manner of the present invention, the two groups of flipping structures are arranged in central symmetry and are arranged at both ends of the surface of the car top 1. Embodiment

[0028] Based on the above-mentioned Embodiment 1, a further discussion is made.

[0029] As Figure 5 , for an elevator based on the car top structure, the following steps are included during operation: Step 1: For an elevator based on the car top structure, an automatic control system is established in the elevator: The automatic control system includes an elevator normal operation control mode, an elevator status detection module, and an elevator maintenance status control mode. Centered around the automatic control system, the operation status of the elevator is controlled: Step 2: Perform real-time determination of the elevator status: Based on the detection data of the elevator's speed sensor, distance sensor, and position sensor, the elevator status detection module receives the sensor data and determines the elevator status to complete the preliminary determination. Then, according to the detection status of the car top structure, a second determination is made; Step 3: Switch the working mode of the elevator: Based on the determination result of the elevator status detection module, the automatic control system controls the elevator to switch between the elevator normal operation control mode and the elevator maintenance status control mode; The methods of mode switching and determination are as follows: S3.1: When the detection data of the speed sensor, distance sensor, and position sensor of the elevator during operation are all within the normal values, it is determined that the operation status of the elevator is normal. At this time, the automatic control system controls the elevator to enter the elevator normal operation control mode; S3.2: When the elevator status detection module detects that the elevator operation status is abnormal, the automatic control system controls the elevator to enter the elevator maintenance status control mode; S3.3: The elevator maintenance is completed by the staff, and the elevator is manually switched from the elevator maintenance status control mode to the elevator normal operation control mode to perform the normal operation of the elevator and ensure the operation safety.

[0030] As an implementation manner of the present invention, in Step 3, for the status determined as abnormal in S3.2, the status includes the landing door status of non-leveling, the car weight, the start-stop status of the maintenance switch, the weight change status of the car top structure, and the status of whether the protective part of the car top structure is deployed. Specifically: When the landing door status of non-leveling is in the closed state and the car weight changes, it enters the elevator maintenance status control mode; When the weight change status of the car top structure changes, it enters the elevator maintenance status control mode; When the protective part of the car top structure is in the deployed state, it enters the elevator maintenance status control mode.

[0031] As an implementation manner of the present invention, when it is determined that the elevator status is abnormal in S3.2, the form of the change in the weight change status of the car top structure is as follows: When personnel enter the car top 1 space, the overall structure of the car top 1 is stressed and pressed down, activating the microswitch 9, disconnecting the normal safety circuit of the elevator, and the elevator enters the elevator maintenance state control mode; The form in which the protective part of the car top structure is in the deployed state is as follows: Start the drive motor 15. The drive motor 15 sequentially drives the drive gear 14, the reversing gear 12, the reversing shaft 11, the reversing main rod 7, and the reversing auxiliary rod 8 to push the side guard bar 5 upward, adjust the height of the protection component, and protect the car top 1. Specific working principle: After personnel enter the car top 1 space, the overall structure of the car top 1 is stressed and pressed down, the rubber pad 10 is stressed and squeezed, and then the car top 1 contacts the microswitch 9, activating the microswitch 9, so that the microswitch 9 operates, disconnecting the normal safety circuit of the elevator. The elevator will no longer receive external commands and cannot operate normally. And it automatically connects to the maintenance line. After the maintenance personnel manually connect the elevator operation state to the maintenance state, the elevator can start to run up and down for maintenance. When the maintenance personnel need to evacuate the car top space, they need to manually adjust the maintenance switch to the normal state. After the personnel leave the car top 1 space, the elevator can operate normally; Even if the maintenance personnel forget to adjust the maintenance switch to the working state when entering the car top 1, it can still ensure the personal safety of the elevator maintenance personnel; When the microswitch 9 is activated, the drive motor 15 is started at the same time. The drive motor 15 controls the reversing gear 12 through the drive gear 14. Then the reversing gear 12 drives the reversing shaft 11 to rotate on the surface of the mounting bracket 13. The reversing main rod 7 flips upward, and the reversing auxiliary rod 8 also opens at the same time, pushing the side guard bar 5 upward, thereby adjusting the height of the protection component, blocking around the car top 1, and protecting the car top 1.

[0032] The embodiments of the present invention are given for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A car top structure for automatically accessing the maintenance state, comprising a car top (1) arranged on the top of a car body (2), and a gap is arranged between the car top (1) and the car body (2), characterized in that: Four orientation holes are respectively opened at the four vertices of the car top (1). Four orientation rods (3) are correspondingly installed at the top of the car (2). A microswitch (9) is installed at the top of the car (2). The microswitch (9) is electrically connected to the elevator system. A rubber pad (10) is installed at the top of the car (2). Two groups of flipping structures are installed at the top of the car top (1). The flipping structure includes a flipping shaft (11). Both ends of the flipping shaft (11) are connected to the car top (1) through mounting brackets (13). A flipping gear (12) is sleeved on the surface of the flipping shaft (11). A driving motor (15) is arranged on one side of the flipping gear (12). The output shaft of the driving motor (15) is fixedly connected with a driving gear (14). The driving gear (14) is close to the flipping gear (12). A flipping main rod (7) is rotatably connected to the flipping shaft (11). One end of the flipping main rod (7) is rotatably connected to a flipping auxiliary rod (8). A guardrail assembly is arranged at the top of the car top (1). The guardrail assembly includes side guardrails (5) and guardrail sliding rods (4). The side guardrails (5) are movably arranged on both sides of the guardrail sliding rods (4). The side guardrails (5) respectively penetrate through the flipping auxiliary rods (8).

2. The car top structure for automatically accessing the maintenance state according to claim 1, characterized in that: The rubber pad (10) is in contact with the bottom of the car top (1). The orientation rods (3) respectively penetrate through the orientation holes movably.

3. The car top structure for automatically accessing the maintenance state according to claim 1, characterized in that: The mounting brackets (13) are fixedly connected to the surface of the car top (1). Both ends of the flipping shaft (11) are respectively rotatably connected to the mounting brackets (13). A protective cover (6) is arranged on the surface of the mounting brackets (13). The protective cover (6) is installed on the car top (1). A flipping notch is opened on the protective cover (6). The flipping main rod (7) is arranged at the flipping notch.

4. The car top structure for automatically accessing the maintenance state according to claim 1, wherein: The driving motor (15) is installed on the surface of the car top (1) through a motor bracket. The driving gear (14) is connected to the output shaft of the driving motor (15) through a coupling. The driving gear (14) meshes with the flipping gear (12).

5. The car top structure for automatically accessing the maintenance state according to claim 1, characterized in that: One end of the side guardrail (5) is provided with a sliding rod groove. Both ends of the guardrail sliding rod (4) respectively penetrate through the two sliding rod grooves movably and are slidably connected to the side guardrail (5). The side guardrail (5) and the guardrail sliding rod (4) are in a "C" - shaped structure.

6. The car top structure for automatically accessing the maintenance state according to claim 1, characterized in that: One end of the flipping main rod (7) is fixedly sleeved on the surface of the flipping shaft (11), and the other end is rotatably connected to the flipping auxiliary rod (8) through a hinge shaft (16). The side guardrail (5) movably penetrates through one end of the flipping auxiliary rod (8) far from the flipping main rod (7).

7. The car top structure for automatically accessing the maintenance state according to claim 1, characterized in that: The two groups of flipping structures are arranged in central symmetry and are arranged at both ends of the surface of the car top (1).

8. The car top structure for automatically accessing the maintenance state according to any one of claims 1 to 7, characterized in that: An elevator based on the car top structure includes the following steps during operation: Step 1: For an elevator based on the car top structure, an automatic control system is established in the elevator. The automatic control system includes an elevator normal operation control mode, an elevator state detection module, and an elevator maintenance state control mode. Centered on the automatic control system, the running state of the elevator is controlled: Step 2: Perform real-time determination of the elevator status: Based on the detection data of the elevator's speed sensor, distance sensor, and position sensor, the elevator status detection module receives the sensor data, determines the elevator status, and completes the preliminary determination. Then, according to the detection status of the car top structure, a second determination is made; Step 3: Switch the working mode of the elevator: Based on the determination result of the elevator status detection module, the automatic control system controls the elevator to switch between the normal elevator operation control mode and the elevator maintenance status control mode; The methods of mode switching and determination are as follows: S3.1: When the detection data of the speed sensor, distance sensor, and position sensor of the elevator during operation are all within the normal values, it is determined that the elevator's operation status is normal. At this time, the automatic control system controls the elevator to enter the normal elevator operation control mode; S3.2: When the elevator status detection module detects that the elevator operation status is abnormal, the automatic control system controls the elevator to enter the elevator maintenance status control mode; S3.3: The elevator maintenance is completed by the staff, and the elevator is manually switched from the elevator maintenance status control mode to the normal elevator operation control mode to perform the normal operation of the elevator and ensure the operation safety.

9. The car top structure for automatically accessing the maintenance state according to claim 8, characterized in that: In the above Step 3, the status of determining that the elevator status is abnormal in S3.2 includes the status of the landing door in a non-leveling position, the car weight, the start / stop status of the maintenance switch, the weight change status of the car top structure, and the status of whether the protective part of the car top structure is deployed. Specifically: When the landing door in a non-leveling position is in the closed state and the car weight changes, it enters the elevator maintenance status control mode; When the weight change status of the car top structure changes, it enters the elevator maintenance status control mode; When the protective part of the car top structure is in the deployed state, it enters the elevator maintenance status control mode.

10. The car top structure for automatically accessing the maintenance state according to claim 9, characterized in that: When it is determined that the elevator status is abnormal in S3.2, the form of the change in the weight change status of the car top structure is as follows: When a person enters the space of the car top (1), the overall structure of the car top (1) is stressed and pressed down, the micro switch (9) is activated, and the normal safety circuit of the elevator is disconnected. The elevator enters the elevator maintenance status control mode; The form of the protective part of the car top structure being in the deployed state is as follows: The drive motor (15) is started, and the drive motor (15) sequentially passes through the drive gear (14), the flipping gear (12), the flipping shaft (11), the flipping main rod (7), and the flipping auxiliary rod (8) to push the side guard bar (5) upward, adjust the height of the protection component, and protect the car top (1).

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