A car roof structure that automatically enters maintenance status

Abstract

The present invention provides a car roof structure that automatically enters a maintenance state, including a car roof arranged on the top of a car, a gap arranged between the car roof and the car, directional holes respectively opened at the four vertices of the car roof, four directional rods correspondingly installed on the top of the car, a micro switch installed on the top of the car, the micro switch is electrically connected to the elevator system, a rubber pad is installed on the top of the car, and two groups of flip structures are installed on the top of the car roof, the flip structure includes a flip shaft, both ends of the flip shaft are connected to the car roof through a mounting frame, and a flip gear is sleeved on the surface of the flip shaft; the present invention provides a micro switch, and when the car roof is subjected to pressure and the micro switch is activated, the operating state of the elevator can be automatically adjusted, and even if the maintenance personnel forget to adjust the maintenance switch to the working state when entering the car roof, the personal safety of the elevator maintenance personnel can be guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of elevator maintenance, in particular to a car top structure which automatically enters a maintenance state. Background Art

[0002] An elevator is a permanent transport device that serves specific floors within a building, with its car running on at least two rows of rigid rails perpendicular to the horizontal plane or inclined at an angle of less than 15° to the vertical. Vertical lift elevators are currently the most common type in use. In some cases, when an elevator malfunctions, it is often necessary to inspect and repair various components on the car roof. The elevator roof serves as a crucial maintenance platform, and maintenance personnel frequently perform maintenance on it while operating the elevator. When operating the elevator from the car roof, there is a risk of collision with the top of the hoistway.

[0003] Villa elevators have low ceilings and maintenance personnel have varying skill levels. If the elevator's operating state is not promptly switched to maintenance mode while maintenance personnel are working on the car roof, people outside the elevator are likely to use the elevator normally. When the elevator reaches the top floor, the lack of safe space can cause personal injury to the maintenance personnel. Furthermore, the distance between the elevator shaft wall and the car varies from floor to floor, sometimes significantly so that maintenance personnel have no protective features around the car roof when going up and down, making it extremely unsafe.

[0004] In summary, the present invention provides a car roof structure that automatically enters a 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 roof structure that automatically enters the maintenance state to solve the problem in the prior art that when the elevator runs to the top floor, it is limited by the lack of safety space, causing personal injury to maintenance personnel.

[0006] A car roof structure that automatically enters a maintenance state includes a car roof arranged on the top of a car, a gap is arranged between the car roof and the car, directional holes are respectively opened at the four vertices of the car roof, four directional rods are correspondingly installed on the top of the car, a microswitch is installed on the top of the car, the microswitch is electrically connected to the elevator system, a rubber pad is installed on the top of the car, and two sets of flip structures are installed on the top of the car roof, the flip structure includes a flip shaft, both ends of the flip shaft are connected to the car roof through a mounting frame, a flip gear is sleeved on the surface of the flip shaft, a drive motor is provided on one side of the flip gear, the output shaft of the drive motor is fixedly connected to the drive gear, the drive gear is close to the flip gear, a flip main rod is rotatably connected to the flip shaft, one end of the flip main rod is rotatably connected to the flip auxiliary rod, and a guardrail assembly is provided on the top of the car roof, the guardrail assembly includes side protection rods and protection slide rods, the side protection rods are movably arranged on both sides of the protection slide rod, and the side protection rods are respectively arranged through the flip auxiliary rod.

[0007] Furthermore, the rubber pad is in contact with the bottom of the car roof, and the directional rods are movably arranged through the directional holes.

[0008] Furthermore, the mounting frame is fixedly connected to the surface of the car roof, and the two ends of the flip shaft are respectively rotatably connected to the mounting frame. A protective cover is provided on the surface of the mounting frame, and the protective cover is installed on the car roof. A flip slot is provided on the protective cover, and the flip main rod is provided at the flip slot.

[0009] Furthermore, the driving motor is installed on the surface of the car roof through a motor frame, the driving gear is connected to the output shaft of the driving motor through a coupling, and the driving gear is meshed with the flip gear.

[0010] Furthermore, a slide bar groove is opened at one end of the side protection bar, and the two ends of the protection slide bar are movable through the two slide bar grooves and are slidingly connected to the side protection bar. The side protection bar and the protection slide bar are in a "C" shape.

[0011] Furthermore, one end of the flip main rod is fixedly sleeved on the surface of the flip shaft, and the other end is rotatably connected to the flip auxiliary rod through a hinge shaft, and the side protection rod movably passes through the end of the flip auxiliary rod away from the flip main rod.

[0012] Furthermore, the two groups of flip structures are centrally symmetrically arranged and are arranged at both ends of the car roof surface.

[0013] Furthermore, the elevator based on the car roof structure includes the following steps during operation:

[0014] Step 1: Based on the car roof structure of the elevator, establish an automatic control system in the elevator: the automatic control system includes the elevator normal operation control mode, the elevator status detection module and the elevator maintenance status control mode. The automatic control system is the center to control the operation status of the elevator:

[0015] Step 2: 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 a preliminary determination. Then, a second determination is made based on the detection status of the car roof structure.

[0016] Step 3: Switching 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;

[0017] The mode switching and determination methods are as follows:

[0018] S3.1. When the detection data of the speed sensor, distance sensor, and position sensor of the elevator are all within normal values, the elevator is judged to be in normal operation. At this time, the automatic control system controls the elevator to enter the normal operation control mode;

[0019] S3.2, when the elevator status detection module detects that the elevator is in an abnormal operating state, the automatic control system controls the elevator to enter the elevator maintenance state control mode;

[0020] S3.3. The staff shall complete the elevator maintenance and manually switch the elevator from the elevator maintenance status control mode to the elevator normal operation control mode to carry out the normal operation of the elevator to ensure safe operation.

[0021] Furthermore, in step 3, S3.2 determines whether the elevator is abnormal, including the state of the non-leveled door, the weight of the car, the start and stop state of the maintenance switch, the weight change state of the car roof structure, and whether the protective part of the car roof structure is deployed. Specifically,

[0022] When the door state of a non-level floor is closed and the car weight changes, the elevator enters the maintenance state control mode;

[0023] When the weight change state of the car roof structure changes, the elevator enters the maintenance state control mode;

[0024] When the protective part of the car roof structure is in the unfolded state, the elevator enters the maintenance state control mode.

[0025] Furthermore, when it is determined in S3.2 that the elevator state is abnormal, the weight change state of the car top structure changes in the following form:

[0026] When people enter the car roof space, the entire car roof structure is pressed down, the micro switch is activated, the normal safety circuit of the elevator is disconnected, and the elevator enters the elevator maintenance state control mode;

[0027] The protective part of the car roof structure is in the unfolded state as follows:

[0028] Start the drive motor, which in turn moves through the drive gear, flip gear, flip shaft, flip main rod, and flip auxiliary rod to push the side protection bar upward, adjust the height of the protection component, and protect the car roof.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The present invention provides a micro switch. When the car top is subjected to pressure and the micro switch is activated, the operating state of the elevator can be automatically adjusted. Even if the maintenance personnel forget to adjust the maintenance switch to the working state when entering the car top, the personal safety of the elevator maintenance personnel can be guaranteed.

[0031] 2. The present invention controls the flip structure by setting a drive motor. When the micro switch is started, the drive motor can be started at the same time to unfold the flip structure. The flip structure that can be flipped, folded and unfolded can be used to adjust the height of the protective component to protect the area around the car roof. When maintenance personnel are performing maintenance, they can provide protection to ensure their safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a perspective view of the guardrail assembly of the present invention when opened;

[0033] Figure 2 is a folded perspective view of the guardrail assembly of the present invention;

[0034] Figure 3 This is a three-dimensional diagram of the micro switch of the present invention;

[0035] Figure 4 This is a three-dimensional diagram of the flip structure of the present invention;

[0036] Figure 5 It is a flow chart of elevator operation status determination and operation mode switching in the present invention.

[0037] In the picture:

[0038] 1. Car roof; 2. Car; 3. Directional rod; 4. Protective slide bar; 5. Side protection bar; 6. Protective cover; 7. Main flip rod; 8. Auxiliary flip rod; 9. Micro switch; 10. Rubber pad; 11. Flip shaft; 12. Flip gear; 13. Mounting bracket; 14. Drive gear; 15. Drive motor; 16. Articulated shaft. DETAILED DESCRIPTION

[0039] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention. Example

[0040] like Figures 1-4 As shown, the present invention provides a car roof structure that automatically enters the maintenance state, including a car roof 1 arranged on the top of the car 2, a gap is set between the car roof 1 and the car 2, and directional holes are respectively opened at the four vertices of the car roof 1. Four directional rods 3 are correspondingly installed on the top of the car 2, a micro switch 9 is installed on the top of the car 2, and the micro switch 9 is electrically connected to the elevator system. A rubber pad 10 is installed on the top of the car 2, and two sets of flip structures are installed on the top of the car roof 1. The flip structure includes a flip shaft 11, and both ends of the flip shaft 11 are connected to the car roof through a mounting bracket 13. 1, a flip gear 12 is sleeved on the surface of the flip shaft 11, and a drive motor 15 is provided on one side of the flip gear 12. The output shaft of the drive motor 15 is fixedly connected to the drive gear 14, and the drive gear 14 is close to the flip gear 12. The flip shaft 11 is rotatably connected to the flip main rod 7, and one end of the flip main rod 7 is rotatably connected to the flip auxiliary rod 8. A guardrail assembly is provided on the top of the car roof 1, and the guardrail assembly includes a side protection rod 5 and a protection slide bar 4. The side protection rods 5 are movably arranged on both sides of the protection slide bar 4, and the side protection rods 5 are respectively arranged through the flip auxiliary rod 8.

[0041] As an embodiment of the present invention, the rubber pad 10 is in contact with the bottom of the car roof 1, and the directional rods 3 are movably arranged to penetrate the directional holes.

[0042] As an embodiment of the present invention, the mounting frame 13 is fixedly connected to the surface of the car roof 1, and the two ends of the flip shaft 11 are respectively rotatably connected to the mounting frame 13. A protective cover 6 is provided on the surface of the mounting frame 13, and the protective cover 6 is installed on the car roof 1. A flip slot is opened on the protective cover 6, and the flip main rod 7 is arranged at the flip slot.

[0043] As an embodiment of the present invention, the drive motor 15 is installed on the surface of the car roof 1 through a motor frame, the drive gear 14 is connected to the output shaft of the drive motor 15 through a coupling, and the drive gear 14 is meshed with the flip gear 12.

[0044] As an embodiment of the present invention, a sliding bar groove is opened at one end of the side protection bar 5, and the two ends of the protection slide bar 4 are respectively movable through the two sliding bar grooves and are slidingly connected to the side protection bar 5. The side protection bar 5 and the protection slide bar 4 form a "C" shape structure.

[0045] As an embodiment of the present invention, one end of the flip main rod 7 is fixedly sleeved on the surface of the flip shaft 11, and the other end is rotatably connected to the flip auxiliary rod 8 through a hinge shaft 16, and the side protection rod 5 moves through the flip auxiliary rod 8 away from the end of the flip main rod 7.

[0046] As an embodiment of the present invention, two groups of turnover structures are centrally symmetrically arranged and are arranged at both ends of the surface of the car roof 1. Example

[0047] Based on the above embodiment 1, further discussion is given.

[0048] like Figure 5 , based on the car roof structure, the elevator includes the following steps during operation:

[0049] Step 1: Based on the car roof structure of the elevator, establish an automatic control system in the elevator: the automatic control system includes the elevator normal operation control mode, the elevator status detection module and the elevator maintenance status control mode. The automatic control system is the center to control the operation status of the elevator:

[0050] Step 2: 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 a preliminary determination. Then, a second determination is made based on the detection status of the car roof structure.

[0051] Step 3: Switching 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;

[0052] The mode switching and determination methods are as follows:

[0053] S3.1. When the detection data of the speed sensor, distance sensor, and position sensor of the elevator are all within normal values, the elevator is judged to be in normal operation. At this time, the automatic control system controls the elevator to enter the normal operation control mode;

[0054] S3.2, when the elevator status detection module detects that the elevator is in an abnormal operating state, the automatic control system controls the elevator to enter the elevator maintenance state control mode;

[0055] S3.3. The staff shall complete the elevator maintenance and manually switch the elevator from the elevator maintenance status control mode to the elevator normal operation control mode to carry out the normal operation of the elevator to ensure safe operation.

[0056] As an embodiment of the present invention, in step three, S3.2 determines whether the elevator state is abnormal, including the state of the non-level floor door, the weight of the car, the start and stop state of the maintenance switch, the weight change state of the car roof structure, and the state of whether the protective part of the car roof structure is deployed. Specifically,

[0057] When the door state of a non-level floor is closed and the car weight changes, the elevator enters the maintenance state control mode;

[0058] When the weight change state of the car roof structure changes, the elevator enters the maintenance state control mode;

[0059] When the protective part of the car roof structure is in the unfolded state, the elevator enters the maintenance state control mode.

[0060] As an embodiment of the present invention, when it is determined in S3.2 that the elevator state is abnormal, the weight change state of the car top structure changes in the following form:

[0061] When a person enters the space on the car roof 1, the entire structure of the car roof 1 is pressed down, and the micro switch 9 is activated to disconnect the normal safety circuit of the elevator, and the elevator enters the elevator maintenance state control mode;

[0062] The protective part of the car roof structure is in the unfolded state as follows:

[0063] Start the drive motor 15, which in turn drives the gear 14, the flip gear 12, the flip shaft 11, the flip main rod 7, and the flip auxiliary rod 8 to push the side protection rod 5 upward, adjust the height of the protection component, and protect the car roof 1.

[0064] Specific working principle:

[0065] When a person enters the car roof 1, the entire structure of the car roof 1 is pressed downward, squeezing the rubber pad 10. This causes the car roof 1 to contact the microswitch 9, activating it and disconnecting the elevator's normal safety circuit. The elevator will no longer receive external commands and will not operate normally. It will automatically connect to the maintenance circuit. After maintenance personnel manually switch the elevator's operating state to maintenance mode, the elevator will begin to be able to operate up and down for maintenance. When maintenance personnel need to evacuate the car roof, they must manually adjust the maintenance switch to normal mode. The elevator will only be able to operate normally after the person leaves the car roof 1.

[0066] Even if the maintenance personnel forget to adjust the maintenance switch to the working state when entering the car top 1, the personal safety of the elevator maintenance personnel can be guaranteed;

[0067] When the micro switch 9 is activated, the drive motor 15 is started at the same time. The drive motor 15 controls the flip gear 12 through the drive gear 14, and then the flip gear 12 drives the flip shaft 11 to rotate on the surface of the mounting frame 13. The flip main rod 7 flips upward, and the flip auxiliary rod 8 is also opened at the same time, pushing the side protection rod 5 to move upward, thereby adjusting the height of the protection component to block the surrounding area of ​​the car roof 1 and protect the car roof 1.

[0068] The embodiments of the present invention are provided 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 cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A car roof structure that automatically enters an inspection state, comprising a car roof (1) arranged on the top of a car (2), a gap being provided between the car roof (1) and the car (2), and characterized in that: The car top (1) is provided with directional holes at the four vertices, and the top of the car (2) is correspondingly provided with four directional rods (3). The top of the car (2) is provided with a micro switch (9), and the micro switch (9) is electrically connected to the elevator system. The top of the car (2) is provided with a rubber pad (10). The top of the car top (1) is provided with two sets of flip structures, and the flip structures include a flip shaft (11). Both ends of the flip shaft (11) are connected to the car top (1) through a mounting frame (13). The surface of the flip shaft (11) is sleeved with a flip gear (12), and a driving motor (15) is provided on one side of the flip gear (12). The output shaft of the motor (15) is fixedly connected to a driving gear (14), the driving gear (14) is close to the flip gear (12), the flip shaft (11) is rotatably connected to a flip main rod (7), one end of the flip main rod (7) is rotatably connected to a flip auxiliary rod (8), the top of the car roof (1) is provided with a guardrail assembly, the guardrail assembly includes a side protection rod (5) and a protection slide rod (4), the side protection rod (5) is movably arranged on both sides of the protection slide rod (4), the side protection rod (5) is respectively passed through the flip auxiliary rod (8), the rubber pad (10) is in contact with the bottom of the car roof (1), and the directional rod (3) is respectively movably passed through the directional hole.

2. The car roof structure that automatically enters the maintenance state as claimed in claim 1, characterized in that: The mounting frame (13) is fixedly connected to the surface of the car roof (1), and both ends of the flip shaft (11) are rotatably connected to the mounting frame (13). A protective cover (6) is provided on the surface of the mounting frame (13), and the protective cover (6) is installed on the car roof (1). A flip notch is provided on the protective cover (6), and the flip main rod (7) is provided at the flip notch.

3. The car roof structure that automatically enters the maintenance state as claimed in claim 1, characterized in that: The drive motor (15) is mounted on the surface of the car roof (1) via a motor frame, the drive gear (14) is connected to the output shaft of the drive motor (15) via a coupling, and the drive gear (14) is meshed with the flip gear (12).

4. The car roof structure that automatically enters the maintenance state as claimed in claim 1, characterized in that: One end of the side protection bar (5) is provided with a slide bar groove, and the two ends of the protection slide bar (4) are respectively movable through the two slide bar grooves and are slidably connected to the side protection bar (5), and the side protection bar (5) and the protection slide bar (4) are in a "C"-shaped structure.

5. The car roof structure that automatically enters the maintenance state as claimed in claim 1, characterized in that: One end of the flip main rod (7) is fixedly sleeved on the surface of the flip shaft (11), and the other end is rotatably connected to the flip auxiliary rod (8) via a hinge shaft (16). The side protection rod (5) movably penetrates the end of the flip auxiliary rod (8) away from the flip main rod (7).

6. The car roof structure that automatically enters the maintenance state as claimed in claim 1, characterized in that: The two groups of flip structures are centrally symmetrically arranged and are arranged at both ends of the surface of the car roof (1).

7. The car roof structure capable of automatically entering a maintenance state according to any one of claims 1 to 6, characterized in that: The operation of an elevator based on a car roof structure includes the following steps: Step 1: Based on the car roof structure of the elevator, establish an automatic control system in the elevator: the automatic control system includes the elevator normal operation control mode, the elevator status detection module and the elevator maintenance status control mode. The automatic control system is the center to control the operation status of the elevator: Step 2: 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 a preliminary determination. Then, a second determination is made based on the detection status of the car roof structure. Step 3: Switching 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 mode switching and determination methods are as follows: S3.

1. When the detection data of the speed sensor, distance sensor, and position sensor of the elevator are all within normal values, the elevator is judged to be in normal operation. At this time, the automatic control system controls the elevator to enter the normal operation control mode; S3.2, when the elevator status detection module detects that the elevator is in an abnormal operating state, the automatic control system controls the elevator to enter the elevator maintenance state control mode; S3.

3. The staff shall complete the elevator maintenance and manually switch the elevator from the elevator maintenance status control mode to the elevator normal operation control mode to carry out the normal operation of the elevator to ensure safe operation.

8. The car roof structure that automatically enters the maintenance state as claimed in claim 7, characterized in that: In step 3, S3.2 determines whether the elevator is abnormal. The status includes the state of the non-level floor door, the weight of the car, the start and stop status of the maintenance switch, the weight change state of the car roof structure, and whether the protective part of the car roof structure is deployed. Specifically: When the door state of a non-level floor is closed and the car weight changes, the elevator enters the maintenance state control mode; When the weight change state of the car roof structure changes, the elevator enters the maintenance state control mode; When the protective part of the car roof structure is in the unfolded state, the elevator enters the maintenance state control mode.

9. The car roof structure that automatically enters the maintenance state as claimed in claim 7, characterized in that: When it is determined in S3.2 that the elevator state is abnormal, the weight change state of the car roof structure changes in the following form: When a person enters the space on the car top (1), the entire structure of the car top (1) is pressed downward, and the micro switch (9) is activated to disconnect the normal safety circuit of the elevator, and the elevator enters the elevator maintenance state control mode; The protective part of the car roof structure is in the unfolded state as follows: The driving motor (15) is started, and the driving motor (15) sequentially moves through the driving gear (14), the flip gear (12), the flip shaft (11), the flip main rod (7), and the flip auxiliary rod (8) to push the side protection rod (5) upward, adjust the height of the protection component, and protect the car top (1).

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