A distributed counterweight structure for safety door lifting

Abstract

The present invention provides a distributed counterweight structure for the lifting of safety doors, which relates to the technical field of high-speed rail safety doors, and includes a guide column, a driving roller arranged at the top of the guide column, and a transmission belt connected to the driving roller. A pull rope slider is connected to one end of the transmission belt, and a plurality of counterweights are arranged at intervals on the transmission belt; the counterweights include a constant-position counterweight and a variable-position counterweight; the constant-position counterweight is located on the side of the guide column away from the pull rope slider; when the pull rope slider is raised to the upper limit, the variable-position counterweight is located on the side of the guide column away from the pull rope slider; and when the pull rope slider is lowered to the lower limit, the variable-position counterweight is located on the side of the guide column close to the pull rope slider. The present invention balances the lifting and lowering of the pull rope slider by arranging counterweights at the platform door column, and the counterweights are distributed, providing different balancing effects at different stages of the lifting and lowering of the pull rope slider, which can ensure that the driving power of the pull rope lifting process is smaller, the safety is higher, and the stability is stronger.

Description

Technical Field

[0001] The present invention relates to the technical field of high-speed railway safety doors, and in particular to a distributed counterweight block structure for lifting and lowering safety doors. Background Art

[0002] With urban development, the demand for rail vehicles to provide transportation between cities and suburbs is increasing. With the diverse development trends in various regions, the actual demand for rail vehicles varies greatly. Within-city subways (including underground and above-ground rail transit) and intercity trains (including EMUs, high-speed trains, and conventional trains) are collectively referred to as rail transit vehicles.

[0003] However, the platforms of these rail transit vehicles have a large flow of people and the rail transit runs at a high speed. It is necessary to install a screen door at the platform to separate the platform personnel from the rail vehicles to prevent the platform personnel from accidentally falling onto the platform and causing danger. For example, Chinese patent invention patent CN116517427A provides an intelligent screen door structure for a rail transit platform, which relates to the field of rail transit technology. It includes fixed columns and movable columns. The fixed columns are provided with telescopic grooves. A limited sliding column is provided in the telescopic groove. The movable column includes a main plate, a screw rod and a slider. A rotating roller and a conveyor belt are provided at the upper end of the main plate. A first connector and a second connector are provided on the screw rod. The end of the conveyor belt away from the first connector is connected to the slider. A hook is provided on the slider. There are at least two fixed columns and movable columns, so that a pull rope with an end fixed to the hook is connected between the movable columns on the two fixed columns. The above invention is simple to set up. The distance between the shield door posts is lengthened through the pull-rope type shield door. One shield door area corresponds to the doors of multiple types of trains. It is suitable for different requirements of door opening positions of different trains, which is convenient for passengers to get on and off. The two-stage lifting structure of the pull rope is stable. When the pull rope is lowered, it can effectively prevent people from falling onto the platform, and has high safety.

[0004] However, the above-mentioned intelligent platform shielding door structure for rail transit stations still has the following disadvantages: there are many pull ropes in the rope shielding door, and the ropes are generally up to 15 meters long, so the weight of the ropes and sliders is very large, and the driving power is still relatively large. In addition, there are many rope shielding doors on a platform, resulting in a huge overall platform power consumption, causing a great waste of resources.

[0005] Therefore, in order to solve the above problems, it is necessary for us to design a reasonable and efficient distributed counterweight structure for safety door lifting. Summary of the Invention

[0006] The purpose of the present invention is to provide a distributed counterweight structure for the lifting of safety doors. The counterweight is set at the platform door post to balance the lifting and lowering of the rope slider, and the counterweight is set in a distributed manner to provide different balancing effects at different stages of the lifting of the rope slider, which can ensure that the driving power of the rope lifting process is smaller, the safety is higher, and the stability is stronger.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A distributed counterweight structure for lifting a safety door comprises a vertically arranged guide post, a drive roller arranged at the top of the guide post, and a conveyor belt connected to the drive roller. A pull rope slider is connected to one end of the conveyor belt, and a plurality of counterweights are arranged at intervals on the conveyor belt.

[0009] The counterweight blocks include a constant position counterweight block and a variable position counterweight block;

[0010] The constant position counterweight is located on a side of the guide column away from the rope slider;

[0011] When the rope slider is raised to the upper limit position, the shifting counterweight block is located on the side of the guide column away from the rope slider; and when the rope slider is lowered to the lower limit position, the shifting counterweight block is located on the side of the guide column close to the rope slider.

[0012] As a preferred embodiment of the present invention, the driving roller is connected to a motor for driving the driving roller to rotate.

[0013] As a preferred embodiment of the present invention, the number of the conveyor belts is two, and the two conveyor belts are respectively connected to the two ends of the counterweight block.

[0014] As a preferred embodiment of the present invention, the end of the pull rope slider is provided with a hook for connecting to the safety door pull rope.

[0015] As a preferred embodiment of the present invention, a guide limit block for connecting with the guide post is provided on a side of the rope slider close to the guide post.

[0016] As a preferred embodiment of the present invention, the number of the guide posts and the number of the guide limit blocks are both two.

[0017] As a preferred embodiment of the present invention, the number of the rope sliders is at least two.

[0018] As a preferred embodiment of the present invention, a limiting rope is connected between two adjacent rope-pulling sliders.

[0019] As a preferred embodiment of the present invention, an annular tooth is provided on the outer side of the driving roller, and the transmission belt is a transmission chain meshing with the annular tooth.

[0020] As a preferred embodiment of the present invention, a column shell is provided on the outside of the guide column, and sliding grooves for facilitating the passage of the safety door pull rope are provided on both sides of the column shell.

[0021] As a preferred embodiment of the present invention, a compensation roller is provided at the bottom of the guide column, a compensation belt is provided on the compensation roller, one end of the compensation belt is connected to the pull rope slider, and the other end of the compensation belt is connected to the constant position counterweight block.

[0022] The beneficial effect of the distributed counterweight block structure for lifting safety doors of the present invention is that the lifting and lowering of the rope slider is balanced by arranging the counterweight block at the platform door post, and the counterweight block is arranged in a distributed manner to provide different balancing effects at different stages of the lifting and lowering of the rope slider, which can ensure that the driving power of the rope lifting process is smaller, the safety is higher, and the stability is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a distributed counterweight structure for lifting a safety door according to the present invention;

[0024] Figure 2 This is a side view of the structure of a distributed counterweight structure for safety door lifting in one embodiment of the present invention when the pull rope slider is lowered;

[0025] Figure 3 This is a side view of the structure of a distributed counterweight structure for safety door lifting in one embodiment of the present invention when the pull rope slider is raised;

[0026] In the figure: 1. Guide column, 11. Compensation roller, 12. Compensation belt, 2. Drive roller, 21. Ring gear, 3. Conveyor belt, 4. Pull rope slider, 41. Limit rope, 42. Guide limit block, 43. Hook, 5. Counterweight, 51. Constant position counterweight, 52. Variable position counterweight. DETAILED DESCRIPTION

[0027] The following are specific embodiments of the present invention, which further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of modules and steps set forth in these embodiments and the steps do not limit the scope of the present invention.

[0029] At the same time, it should be understood that for the convenience of description, the processes in the drawings are not just performed individually, but multiple steps are performed in an intersecting manner.

[0030] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the product of the present invention is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0032] Technologies, methods, and systems known to ordinary technicians in the relevant field may not be discussed in detail, but where appropriate, the technologies, methods, and systems should be considered part of the authorization specification.

[0033] Example 1: Figures 1 to 3 The figure is only one embodiment of the present invention, which is a distributed counterweight structure for lifting a safety door, comprising a vertically arranged guide column 1, a drive roller 2 arranged at the top of the guide column 1, and a conveyor belt 3 connected to the drive roller 2. One end of the conveyor belt 3 is connected to a pull rope slider 4, and a plurality of counterweights 5 are arranged at intervals on the conveyor belt 3.

[0034] In the present invention, a pull rope is connected to the end of the pull rope slider 4, and the pull rope is located at the edge of the platform door to form a pull rope safety door. The guide column 1 is vertically arranged, so that the pull rope slider 4 can be raised and lowered along the guide column 1, and the lifting and lowering of the pull rope slider 4 will drive the pull rope to rise and fall. When the pull rope slider 4 drives the pull rope to rise until the rope is higher than the pedestrian's head, the people waiting on the platform can pass under the pull rope to get on the rail transit train or get off the train to the platform; on the contrary, when the pull rope slider 4 is lowered, driving the pull rope to fall, it will separate the flow of people between the platform and the train, and also prevent the platform personnel from falling off the platform or getting too close to the train and getting into danger.

[0035] A driving roller 2 is provided on the top of the rope slider 4, and the driving roller 2 is connected to a motor for driving the driving roller 2 to rotate. The driving roller 2 is connected to a transmission belt 3, and one end of the transmission belt 3 is connected to the rope slider 4. That is to say, the driving motor drives the driving roller 2 to rotate, and the driving roller 2 drives the transmission belt 3 to transmit, thereby driving the lifting of the rope slider 4. Figure 2For example, the motor rotates forward to drive the driving roller 2 to rotate clockwise, the rope slider 4 rises, and the safety door opens; conversely, the motor rotates backward and the safety door closes; it can be understood that the motor drives the rope slider 4 to rise and fall to complete the raising (opening) and lowering (closing) of the safety door.

[0036] Next, a number of counterweights 5 are arranged at intervals on the conveyor belt 3. The counterweights 5 are transmitted along with the conveyor belt 3. The counterweights 5 mainly balance the gravity of the rope slider 4. For example, when the counterweight 5 is located on the side of the guide column 1 away from the rope slider 4, the rope slider 4 rises, and the counterweight 5 falls. In this way, the gravity of the counterweight 5 balances the gravity of the rope slider 4 and the rope, thereby reducing the power of the drive motor to drive the rope slider 4 to rise and fall.

[0037] In the present invention, the counterweight 5 includes a constant-position counterweight 51 and a variable-position counterweight 52; both the constant-position counterweight 51 and the variable-position counterweight 52 are displaced along with the transmission of the conveyor belt 3, wherein the constant-position counterweight 51 is not in a constant position, but is constantly located on the side of the guide column 1 away from the rope slider 4, and the constant-position counterweight 51 is still raised and lowered on the side of the guide column 1 away from the rope slider 4;

[0038] On the contrary, the position-shifting counterweight 52 means that its side position on the guide column 1 will change as the rope slider 4 rises and falls. Specifically, when the rope slider 4 rises to the upper limit, the position-shifting counterweight 52 is located on the side of the guide column 1 away from the rope slider 4 (such as Figure 3 As shown); and when the rope slider 4 is lowered to the lower limit, all the shifting weight blocks 52 are located on the side of the guide column 1 close to the rope slider 4 (as shown); Figure 2 shown).

[0039] Of course, the number of the constant-position counterweight block 51 and the variable-position counterweight block 52 is at least one.

[0040] When the rope slider 4 is raised to the upper limit position, all the displaceable counterweight blocks 52 are located on the side of the guide column 1 away from the rope slider 4; and when the rope slider 4 is lowered to the lower limit position, all the displaceable counterweight blocks 52 are located on the side of the guide column 1 close to the rope slider 4.

[0041] In the present invention, there is also an intermediate state. When the rope pull slider 4 is located between the upper limit and the lower limit, a part of the displaceable counterweight block 52 is located on the side of the guide column 1 away from the rope pull slider 4, and a part of the displaceable counterweight block 52 is located on the side of the guide column 1 close to the rope pull slider 4.

[0042] It should be noted that the total weight of all the constant position counterweights 51 is greater than the total weight of all the variable position counterweights 52, so that no matter whether the rope slider 4 is raised or lowered, there is always a force on the side of the guide column 1 away from the rope slider 4 that can balance the gravity of the rope slider 4 and the rope.

[0043] Moreover, the sum of the total mass of the variable position counterweight block 52 and the mass of the rope slider 4 (including the rope) is greater than the total weight of all the constant position counterweight blocks 51, so that when the rope slider 4 is lowered to the lower limit, the constant position counterweight block 51 is not sufficient to pull the rope slider 4 up, thereby avoiding the abnormal rising of the rope slider 4 and the abnormal opening of the safety door when the motor fails.

[0044] Furthermore, the total weight of all the constant-position counterweights 51 and the total weight of all the variable-position counterweights 52 is greater than the mass of the rope-pulling slider 4 (including the pull rope). This ensures that when the rope-pulling slider 4 is raised to the upper limit, the weight of the rope-pulling slider 4 is insufficient to cause it to fall. This prevents the rope-pulling slider 4 from abnormally descending and closing the safety door in the event of a motor failure, potentially crushing pedestrians.

[0045] The present invention provides a distributed counterweight structure for lifting a safety door by arranging a counterweight at the platform door post to balance the lifting of a rope slider. The counterweight is arranged in a distributed manner, providing different balancing effects at different stages of the lifting of the rope slider, thereby ensuring that the driving power of the rope lifting process is smaller, the safety is higher, and the stability is stronger.

[0046] Example 2, still as Figures 1 to 3 The figure shown is only one of the embodiments of the present invention. On the basis of the first embodiment, in a distributed counterweight structure for lifting a safety door of the present invention, the end of the rope slider 4 is provided with a hook 43 for connecting with the safety door rope, and the hook can slide horizontally on the rope slider 4, that is, the hook 43 can be adjusted horizontally to adjust the tightness of the rope, thereby ensuring a stable connection of the rope.

[0047] In addition, a guide limit block 42 for connecting with the guide column 1 is provided on the side of the rope slider 4 close to the guide column 1. In fact, the edge of the guide column 1 has a cylindrical vertical column, and the guide limit block 42 forms a C-shaped structure and is stuck on the cylindrical vertical column, so that the rope slider 4 can only slide up and down along the cylindrical vertical column without abnormal displacement in the left and right and front and back directions.

[0048] Of course, the number of the guide columns 1 and the guide limit blocks 42 are both two. It is best that both ends of the rope slider 4 are respectively connected to the cylindrical vertical columns through the guide limit blocks 42, so that the lifting stability of the rope slider 4 is higher.

[0049] In addition, the number of the pull rope sliders 4 is at least two. If there are multiple pull ropes on the platform door, multiple pull rope sliders 4 are required for connection. Generally speaking, there are 6 pull rope sliders 4, so that 6 pull ropes form the platform safety door.

[0050] In addition, a limit rope 41 is connected between two adjacent rope sliders 4 to prevent the distance between the two adjacent ropes from being too large and to prevent pedestrians from directly passing through between the two ropes and falling off the platform. The limit rope 41 can be an elastic member.

[0051] It should be noted that: when the uppermost rope slider 4 is raised to the upper limit position, all the displaceable counterweight blocks 52 are located on the side of the guide column 1 away from the rope slider 4; and when the lowermost rope slider 4 is lowered to the lower limit position, all the displaceable counterweight blocks 52 are located on the side of the guide column 1 close to the rope slider 4.

[0052] Example 3, still as Figures 1 to 3 The figure shown is only one embodiment of the present invention. On the basis of any of the above embodiments, in a distributed counterweight block structure for lifting and lowering a safety door, the present invention has two conveyor belts 3, and the two conveyor belts 3 are respectively connected to the two ends of the counterweight block 5 to ensure that the counterweight block 5 is stably connected.

[0053] Furthermore, the counterweight 5 is connected to the side of the conveyor belt 3 away from the guide column 1 to prevent the counterweight 5 from being twisted between the conveyor belt 3 and the driving roller 2 .

[0054] In the present invention, an annular tooth 21 is provided on the outer side of the driving roller 2, and the transmission belt 3 is a transmission chain meshed with the annular tooth 21 to prevent the transmission belt 3 from sliding, and the stability of the entire driving structure is higher.

[0055] In order to ensure stable transmission of the conveyor belt 3, a compensation roller 11 is provided at the bottom of the guide column 1, and a compensation belt 12 is provided on the compensation roller 11. One end of the compensation belt 12 is connected to the rope slider 4, and the other end of the compensation belt 12 is connected to the constant position counterweight block 51. The tightness of the conveyor belt 3 can be adjusted by tightening and preventing loosening of the compensation belt 12, and at the same time, it can be ensured that the conveyor belt 3 will not deviate abnormally and exceed the speed limit.

[0056] Finally, a column shell is provided on the outside of the guide column 1, and both sides of the column shell are provided with sliding grooves for facilitating the passage of the safety door pull rope, and the sliding grooves are provided vertically.

[0057] The present invention provides a distributed counterweight structure for lifting a safety door by arranging a counterweight at the platform door post to balance the lifting of a rope slider. The counterweight is arranged in a distributed manner, providing different balancing effects at different stages of the lifting of the rope slider, thereby ensuring that the driving power of the rope lifting process is smaller, the safety is higher, and the stability is stronger.

[0058] The present invention is not limited to the above specific embodiments, and various modifications and variations are possible. Any modification, equivalent replacement, improvement, etc. made to the above embodiments based on the technical essence of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A distributed counterweight structure for safety door lifting, characterized by: The invention comprises a vertically arranged guide column (1), a driving roller (2) arranged at the top end of the guide column (1), and a transmission belt (3) connected to the driving roller (2), wherein the driving roller (2) is connected to a motor for driving the driving roller (2) to rotate; a pull rope slider (4) is connected to one end of the transmission belt (3), and the number of the pull rope sliders (4) is at least two; and a plurality of counterweight blocks (5) are arranged at intervals on the transmission belt (3); The counterweight block (5) includes a constant position counterweight block (51) and a variable position counterweight block (52); The constant position counterweight (51) is located on a side of the guide column (1) away from the rope slider (4); When the rope-pulling slider (4) is raised to the upper limit position, the shifting counterweight (52) is located on the side of the guide column (1) away from the rope-pulling slider (4); and when the rope-pulling slider (4) is lowered to the lower limit position, the shifting counterweight (52) is located on the side of the guide column (1) close to the rope-pulling slider (4).

2. A distributed counterweight structure for safety door lifting according to claim 1, characterized in that: There are two conveyor belts (3), and the two conveyor belts (3) are respectively connected to two ends of the counterweight block (5).

3. The distributed counterweight structure for safety door lifting according to claim 1, characterized in that: The end of the pull rope slider (4) is provided with a hook (43) for connecting to the safety door pull rope.

4. The distributed counterweight structure for safety door lifting according to claim 1, characterized in that: A guide limit block (42) for connecting to the guide column (1) is provided on one side of the rope pull slider (4) close to the guide column (1).

5. The distributed counterweight structure for safety door lifting according to claim 4, characterized in that: The number of the guide columns (1) and the number of the guide limit blocks (42) are both two.

6. The distributed counterweight structure for safety door lifting according to claim 4, characterized in that: A limiting rope (41) is connected between two adjacent rope-pulling sliders (4).

7. The distributed counterweight structure for safety door lifting according to claim 1, characterized in that: An annular tooth (21) is provided on the outside of the driving roller (2), and the transmission belt (3) is a transmission chain meshed with the annular tooth (21).

8. The distributed counterweight structure for safety door lifting according to claim 3, characterized in that: A column shell is provided on the outside of the guide column (1), and both sides of the column shell are provided with sliding grooves for facilitating the passage of the safety door pull rope.

Images