Lifting mechanism capable of automatically lifting after power failure or electrical fault

Abstract

The utility model discloses a lifting mechanism capable of automatically rising after power failure or electrical failure, which structurally comprises a lifting device, a frame main body, a synchronous pulley, a fixed seat, a synchronous belt, a second optical axis, a balance load assembly and a protective shell, the fixed seat is arranged inside the frame main body, and the protective shell is arranged outside the frame main body. The lifting device is arranged on one side of the fixing base, the other side of the fixing base is provided with a synchronous belt wheel, a synchronous belt, two second polished shafts and a load balancing assembly, the synchronous belt wheel is connected with the upper portion of the frame body through a support, the inner side of the synchronous belt is connected with a connecting plate of the lifting device through a support, and the two second polished shafts are arranged. The two second optical shafts are arranged on the two sides of the synchronous belt respectively, the balance load assembly is in sliding connection with the optical shafts, and the balance load assembly is fixedly connected with the synchronous belt. The lifting mechanism is reliable and stable in structure, automatic lifting of the platform can be achieved when the mechanism is powered off or breaks down by arranging the balance load assembly, train passengers can be evacuated conveniently in emergency situations of faults, and using is safe.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a lifting mechanism which can automatically rise after power failure or electrical failure. Background Art

[0002] If there is a power outage or electrical component failure at the existing platform doors, the lifting mechanism cannot be raised after the high-speed train arrives at the station. Passengers will be trapped between the train and the platform door after getting off the train and cannot leave the station in time, which will cause crowds to gather and easily lead to safety accidents. If there are multiple power outages or failures at the same time, multiple staff members are required to handle them at the same time, and it is a waste of manpower to equip the platform with multiple staff members. In addition, the existing technical solutions do not balance the load. Since the lifting column is heavy, the pressure on the motor and electrical components is relatively large. A high-power motor must be used to complete the lifting. The equipment power consumption is high, the impact current on the circuit board is also large, and the requirements for the circuit board are also high, resulting in high costs. Utility Model Content

[0003] The purpose of the utility model is to provide a lifting mechanism that can automatically rise after power failure or electrical failure. The lifting mechanism has a reliable and stable structure. By arranging a balanced load component, the platform can automatically rise when the mechanism is powered off or fails, which is convenient for evacuating train passengers in an emergency situation and is safe to use.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a lifting mechanism that can automatically rise after power failure or electrical failure, whose structure includes a lifting device, a frame body, a synchronous pulley, a fixed seat, a synchronous belt, an optical axis 2, a balanced load component and a protective shell, the fixed seat is arranged inside the frame body, and a protective shell is arranged outside the frame body, the lifting device is arranged on one side of the fixed seat, and the other side of the fixed seat is provided with a synchronous pulley, a synchronous belt, an optical axis 2 and a balanced load component, the synchronous pulley is connected to the upper part of the frame body through a bracket, the inner side of the synchronous belt is connected to the connecting plate of the lifting device through the bracket, the optical axis 2 is provided with two, and the two optical axes 2 are respectively arranged on both sides of the synchronous belt, the balanced load component is slidably connected to the optical axis, and the balanced load component is fixedly connected to the synchronous belt.

[0005] Furthermore, the balanced load assembly includes a plurality of load bodies, load fixings and connecting blocks, the exteriors of the plurality of load bodies are fixed by connecting blocks, and the lowermost load body is fixedly connected to the synchronous belt by the load fixings.

[0006] Furthermore, the load fixing part includes an L-shaped fixed connecting plate and a toothed pressure plate, the L-shaped fixed connecting plate is arranged on the front side of the synchronous belt, the toothed pressure plate is arranged on the rear side of the synchronous belt, the vertical plate of the L-shaped fixed connecting plate is fixedly connected to the synchronous belt and the toothed pressure plate, and the horizontal plate of the L-shaped fixed connecting plate is fixedly connected to the load body.

[0007] Furthermore, a synchronous belt slot cooperating with the synchronous belt is provided in the middle of one side of the load body, optical axis slots slidably cooperating with the optical axis are provided on both sides of the load body, and a fixing hole cooperating with the connecting block is provided on the outer side of the load body.

[0008] Furthermore, the lifting device includes a fixed rope slider, a servo motor, a ball screw, a linear guide rail 1, a linear guide rail 2, a lifting platform, a movable rope slider, a connecting plate, a rolling rope and a roller. The servo motor, the optical axis, the linear guide rail 1, the linear guide rail 2 and the fixed rope slider are respectively connected to the fixed seat, the ball screw is connected to the output shaft of the servo motor, the connecting plate is threadedly matched with the ball screw, and the rotation of the ball screw drives the connecting plate to move up and down, one side of the connecting plate is slidably connected to the linear guide rail 1 through a slider, and the lifting platform is fixedly connected to the connecting plate, two linear guide rails 2 are provided on the lifting platform, the fixed rope slider is fixedly connected to the upper end of the linear guide rail 2, the movable rope slider is provided with three, and the three movable rope sliders are respectively slidably connected to the linear guide rail 2, wherein the movable rope slider at the lower end is fixedly connected to the rolling rope; rollers are respectively provided at the upper and lower ends of the lifting platform, the rolling rope is matched and connected with the two rollers, and the rolling rope is connected to the fixed seat through a rolling rope fixing seat.

[0009] Furthermore, the rolling rope is connected to the fixing seat via a rolling rope fixing seat.

[0010] Furthermore, the lifting device also includes an optical axis 1 and a linear bearing, the linear bearing is connected to the upper part of the frame body, the upper end of the optical axis 1 is connected to the lifting platform through a support, and the lower end of the optical axis 1 is fixedly connected to the connecting plate.

[0011] Beneficial effects of the utility model:

[0012] The lifting mechanism of the utility model is provided with a balanced load component on one side of the fixed seat, and the balanced load component is fixedly connected with a synchronous belt. When the lifting platform moves up and down under the drive of the servo motor, the external and balanced loads are connected to both sides of the synchronous pulley through the synchronous belt to form a load side bias. The power can be cut off to drive the lifting platform to automatically rise, and the lifting door can be automatically raised without affecting the passage of passengers. The workload of the platform staff can be reduced, and abnormal situations such as platform door failure can be handled in a timely manner. At the same time, the motor load can be greatly reduced.

[0013] Since the lifting device is provided with a ball screw, a guide shaft and a bearing, the lifting platform can be driven to move up and down reliably and stably through the connecting plate, thereby improving the accuracy and stability of the operation of the lifting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 for Figure 1 A rear view structural diagram of ;

[0016] Figure 3 It is the main view of the lifting mechanism;

[0017] Figure 4 for Figure 1 Schematic diagram of the rear view structure at different angles;

[0018] Figure 5 for Figure 4 Schematic diagram of the left view structure;

[0019] Figure 6 for Figure 5 Middle partial enlarged picture;

[0020] Figure 7 It is a structural schematic diagram of the load body;

[0021] Figure 8 It is a schematic diagram of the external structure of the utility model.

[0022] In the figure:

[0023] 1. Fixed rope slider, 2. servo motor, 3. linear bearing, 4. optical axis 1, 5. rolling rope fixing seat, 6. ball screw, 7. linear guide 1, 8. linear guide 2, 9. lifting platform, 10. movable rope slider, 11. connecting plate, 12. rolling rope, 13. roller, 14. fixing seat, 15. synchronous pulley, 16. synchronous belt, 17. optical axis 2, 18. balanced load assembly, 181 load body, 182 synchronous belt slot, 183 optical axis slot, 184 fixing hole, 19 load fixing part, 191 L-shaped fixed connecting plate, 192 toothed pressure plate, 20 connecting block, 21 protective shell. DETAILED DESCRIPTION

[0024] The following is a detailed description of a lifting mechanism of the utility model which can automatically rise after power failure or electrical failure with reference to the accompanying drawings of the specification.

[0025] See also Figure 1-8The utility model provides a technical solution: a lifting mechanism that can automatically rise after power failure or electrical failure, and its structure includes a lifting device, a frame body, a synchronous pulley 15, a fixed seat 14, a synchronous belt 16, an optical axis 17, a balanced load component 18 and a protective shell 21, wherein the fixed seat 14 is arranged inside the frame body, and a protective shell 21 is arranged outside the frame body, the lifting device is arranged on one side of the fixed seat, and the other side of the fixed seat is provided with a synchronous pulley 15, a synchronous belt 16, an optical axis 17 and a balanced load component 18, the synchronous pulley 15 is connected to the upper part of the frame body through a bracket, the inner side of the synchronous belt 16 is connected to the connecting plate 11 of the lifting device through a bracket, the optical axis 17 is provided with two, and the two optical axes 17 are respectively arranged on both sides of the synchronous belt 16, the balanced load component 18 is slidably connected to the optical axis 17, and the balanced load component 18 is fixedly connected to the synchronous belt 16.

[0026] like Figure 4 As shown, the balanced load assembly 18 includes a plurality of load bodies 181, a load fixing member 19 and a connecting block 20. The exterior of the plurality of load bodies 181 is fixed by the connecting block 20. The number of the load bodies 181 can be set according to different requirements. The two sides of the upper and lower adjacent load bodies are fixed by the connecting blocks 20 respectively. The load body 181 at the bottom is fixedly connected to the synchronous belt 16 through the load fixing member 19. The load fixing member 19 includes an L-shaped fixed connecting plate 191 and a toothed pressing plate 192. The L-shaped fixed connecting plate 191 is arranged at the front side of the synchronous belt 16, and the toothed pressing plate 192 is arranged at the rear side of the synchronous belt. The vertical plate of the L-shaped fixed connecting plate 191 is fixedly connected to the synchronous belt and the toothed pressing plate, and the fixing bolts are passed through the fixing holes on the fixed connecting plate, the synchronous belt and the toothed pressing plate in sequence and then fastened by nuts. The horizontal plate of the L-shaped fixed connecting plate is fixedly connected to the load body. The provision of the toothed pressing plate can improve the reliability of the fixation of the load fixing member to the synchronous belt.

[0027] like Figure 7 As shown, a synchronous belt slot 182 cooperating with the synchronous belt 16 is provided in the middle of one side of the load body 181, so that the synchronous belt is clamped in the synchronous belt slot. Optical axis slots 183 cooperating with the optical axis are provided on both sides of the load body, and fixing holes 184 cooperating with the connecting block 20 are provided on the outside of the load body. Both sides of the upper and lower adjacent load bodies 181 are fixed by screws through the connecting block 20. The number of load bodies 181 installed can be set according to different needs.

[0028] like Figure 1 , Figure 3As shown, the lifting device includes a fixed rope slider 1, a servo motor 2, a ball screw 6, a linear guide 1 7, a linear guide 2 8, a lifting platform 9, a movable rope slider 10, a connecting plate 11, a rolling rope 12, and a roller 13. The servo motor 2, the linear guide 1 7, the linear guide 2 8 and the fixed rope slider 1 are respectively connected to the fixed seat 14, the ball screw 6 is connected to the output shaft of the servo motor 2, the connecting plate 11 is threadedly matched with the ball screw 6, and the rotation of the ball screw 6 drives the connecting plate 11 to move up and down. One side of the connecting plate 11 is connected to the linear guide through the slider. The guide rail 1 7 is slidably connected, the lifting platform 9 is fixedly connected to the connecting plate 14, two linear guide rails 2 8 are arranged on the lifting platform 9, the fixed pull rope slider 1 is fixedly connected to the upper end of the linear guide rail 2 8, and three movable pull rope sliders 10 are provided, and the three movable pull rope sliders 10 are respectively slidably connected to the linear guide rail 2 8, and the lowermost movable pull rope slider 10 is fixedly connected to the rolling rope 12; rollers 13 are respectively provided at the upper and lower ends of the lifting platform 9, the rolling rope is cooperatively connected to the two rollers, and the rolling rope 12 is connected to the fixing seat 14 through the rolling rope fixing seat 5.

[0029] In order to improve the stability of the lifting platform 9, the lifting device also includes an optical axis 4 and a linear bearing 3. The linear bearing 3 is connected to the upper part of the frame body, the upper end of the optical axis 4 is connected to the lifting platform 9 through a support, and the lower end of the optical axis is fixedly connected to the connecting plate 11.

[0030] The servo motor drives the ball screw to rotate, and the rotation of the ball screw drives the connecting plate to move up and down. Since the lifting platform is connected to the connecting plate, the up and down movement of the connecting plate enables the lifting platform to rise and fall. When the lifting platform rises, the movable rope slider at the bottom rises first relative to the lifting platform, and when it contacts the previous movable rope slider, it drives it to rise together until all three movable rope sliders rise to the top. When the lifting platform descends, the three movable rope sliders descend synchronously. When reaching the position of each movable rope slider, the limit block will limit each movable rope slider position. The movable rope slider at the bottom is fixed with the rolling rope. The lifting platform has fixed rollers at both ends, and the rolling rope is annular and rolls on the two rollers. The bottom movable rope slider is fixedly connected to the rolling rope. Since the rolling rope is fixedly connected to the fixed seat through the rolling rope fixing seat, when the lifting platform rises or falls, since one end of the rolling rope is fixed by the rolling rope fixing seat, it will pull the rolling rope to roll on the roller, thereby driving the bottom movable rope slider fixed on the rolling rope to move up and down, and at the same time driving the two middle movable rope sliders to move up and down. When the lifting platform moves up and down driven by the servo motor, the external and balanced loads are connected to both sides of the synchronous pulley through the synchronous belt to form a load side bias, which can drive the lifting platform to automatically rise when the power is cut off, and realize the automatic rise of the lifting door without affecting the passage of passengers; at the same time, it can also greatly reduce the motor load.

[0031] The above description is only used to illustrate some principles of the utility model. This specification is not intended to limit the utility model to the specific structure and application scope shown and described. Therefore, all corresponding modifications and equivalents that may be used belong to the patent scope applied for the utility model.

[0032] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art.

Claims

1. A lifting mechanism that can automatically rise after power failure or electrical failure, characterized in that: It includes a lifting device, a frame body, a synchronous pulley, a fixed seat, a synchronous belt, an optical axis 2, a balanced load component and a protective shell, the fixed seat is arranged inside the frame body, and a protective shell is arranged outside the frame body, the lifting device is arranged on one side of the fixed seat, and the other side of the fixed seat is provided with a synchronous pulley, a synchronous belt, an optical axis 2 and a balanced load component, the synchronous pulley is connected to the upper part of the frame body through a bracket, the inner side of the synchronous belt is connected to the connecting plate of the lifting device through a bracket, two optical axes 2 are provided, and the two optical axes 2 are respectively arranged on both sides of the synchronous belt, the balanced load component is slidably connected to the optical axis, and the balanced load component is fixedly connected to the synchronous belt.

2. A lifting mechanism capable of automatically raising after a power outage or electrical failure according to claim 1, characterized in that: The load balancing assembly comprises a plurality of load bodies, load fixing members and connecting blocks. The exteriors of the plurality of load bodies are fixed by connecting blocks, and the lowermost load body is fixedly connected to the synchronous belt by the load fixing members.

3. A lifting mechanism capable of automatically raising after a power outage or electrical failure according to claim 2, characterized in that: The load fixing part includes an L-shaped fixed connecting plate and a toothed pressure plate, wherein the L-shaped fixed connecting plate is arranged on the front side of the synchronous belt, and the toothed pressure plate is arranged on the rear side of the synchronous belt. The vertical plate of the L-shaped fixed connecting plate is fixedly connected to the synchronous belt and the toothed pressure plate, and the horizontal plate of the L-shaped fixed connecting plate is fixedly connected to the load body.

4. A lifting mechanism capable of automatically raising after a power outage or electrical failure according to claim 2, characterized in that: A synchronous belt slot cooperating with the synchronous belt is provided in the middle of one side of the load body, optical axis slots slidably cooperating with the optical axis are provided on both sides of the load body, and a fixing hole cooperating with the connecting block is provided on the outer side of the load body.

5. A lifting mechanism capable of automatically raising after power failure or electrical failure according to claim 1, characterized in that: The lifting device comprises a fixed rope slider, a servo motor, a ball screw, a linear guide rail 1, a linear guide rail 2, a lifting platform, a movable rope slider, a connecting plate, a rolling rope and a roller. The servo motor, the optical axis, the linear guide rail 1, the linear guide rail 2 and the fixed rope slider are respectively connected to the fixed seat. The ball screw is connected to the output shaft of the servo motor, the connecting plate is matched with the ball screw thread, and the rotation of the ball screw drives the connecting plate to move up and down. One side of the connecting plate is slidably connected to the linear guide rail 1 through a slider, and the lifting platform is fixedly connected to the connecting plate. Two linear guide rails 2 are provided on the lifting platform, the fixed rope slider is fixedly connected to the upper end of the linear guide rail 2, the movable rope slider is provided with three, and the three movable rope sliders are respectively slidably connected to the linear guide rail 2, among which the movable rope slider at the lower end is fixedly connected to the rolling rope; rollers are respectively provided at the upper and lower ends of the lifting platform, the rolling rope is matched with the two rollers, and the rolling rope is connected to the fixed seat through a rolling rope fixing seat.

6. A lifting mechanism capable of automatically raising after power failure or electrical failure according to claim 5, characterized in that: The rolling rope is connected to the fixing seat through the rolling rope fixing seat.

7. A lifting mechanism capable of automatically raising after power failure or electrical failure according to claim 5, characterized in that: The lifting device also includes an optical axis 1 and a linear bearing, wherein the linear bearing is connected to the upper part of the frame body, the upper end of the optical axis 1 is connected to the lifting platform through a support, and the lower end of the optical axis 1 is fixedly connected to the connecting plate.

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