Platform protection device and lifting column thereof

Abstract

The utility model belongs to the technical field of general configuration of a platform comprising passenger protection equipment, and particularly provides a platform protection device and a lifting column thereof. The lifting column comprises a lifting column body and a plurality of movable blocks which are arranged up and down and installed on the lifting column body in a guiding mode, a connecting support is installed on the movable block on the lowest side, and at least part of the connecting support extends downwards to exceed the bottom face of the movable block. The part, exceeding the bottom face of the movable block, of the connecting support is provided with a blocking piece connecting position used for being connected with a blocking piece, and the space of the inner side, downwards exceeding the bottom face of the movable block, of the connecting support forms an avoiding space used for avoiding a related transmission mechanism arranged on the lifting column. The platform protection device comprises the lifting column. The height of the barrier part connected with the part, exceeding the bottom face of the movable block, of the connecting support is lower, the ground clearance of the barrier part, capable of achieving the barrier protection effect, of the platform protection device is reduced, and the blocking capacity of the platform protection device on small objects sliding along the platform ground is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of general platform configuration including passenger protection equipment, and particularly relates to a platform protection device and a lifting column thereof. Background Technique

[0002] Most of the existing railway platforms in China are open platforms. Some passengers have weak safety awareness, and the phenomenon of walking around casually beyond the platform safety line often occurs. Once a passenger accidentally falls from the platform, it may cause serious safety accidents. Therefore, it is necessary to configure a protection device on the platform that can block passengers from crossing the safety line.

[0003] Different from the platform screen doors of subway stations, the stopping positions of high-speed trains, bullet trains or express trains of different trips are not exactly the same, which requires the platform protection device to open a relatively wide passenger passage as much as possible when the door is opened. The Chinese patent application with the publication number CN113442951A discloses a platform lifting safety rope device (platform protection device), which includes a box body. A support column is arranged in the middle of the box body, and a lifting assembly is arranged on the support column. The lifting assembly includes a driving motor, a chain drive mechanism and multiple groups of pulley assemblies arranged up and down. A track for guiding the movement of the pulley assemblies is arranged on the support column. The driving motor and the chain drive mechanism are installed on the support column. The power output by the driving motor can be transmitted to the pulley assemblies through the chain drive mechanism and drive the pulley assemblies to move up and down along the track. The pulley assembly includes a base and a pulley. The pulley is in guiding cooperation with the track, and a rope tightening device for connecting the safety rope is arranged on the base. When the pulley assembly moves up and down, it can drive the safety rope connected to it to move up and down, thereby opening and closing the passage for passengers to get on and off the train. When the safety rope descends, it can play a protective role. In fact, the safety rope is equivalent to a blocking member for blocking passengers.

[0004] Considering the convenience of passengers getting on and off the train, after the safety rope is raised, the lowest safety rope should have enough height, such as about 2m. In the above-mentioned platform lifting safety rope device, since the pulley assembly moves up and down along the support column, in order to meet this requirement, the height of the support column should be higher than the height that the lowest safety rope can be raised. However, too high a support column will bring two problems. One is that it blocks the line of sight of passengers and passenger service staff, which is not convenient for passengers and passenger service staff to observe the train. The other is that the support column is too close to the overhead contact line, and the voltage of the overhead contact line is extremely high (25kV), which will bring relatively high safety risks.

[0005] In order to solve the above problems, a lifting platform protection device has appeared in the prior art. For example, the Chinese invention patent application with application publication number CN117698772A of the applicant provides a lifting platform protection device, which includes a lifting column, the lifting column includes a fixed column for fixing on the edge of the platform and a lifting column installed on the fixed column in a guiding and movable manner in the up and down directions, the fixed column is provided with a driving mechanism for driving the lifting column to perform lifting and lowering movements, the lifting column is provided with a plurality of sliders arranged up and down and movable relative to the lifting column, the front end of the slider is provided with a connecting bracket, and the blocking member can be connected to the connecting bracket. The lifting column and the bottom slider are connected by a linkage mechanism. Specifically, the linkage mechanism is a chain transmission mechanism, which includes sprockets installed at the upper and lower ends of the lifting column and an annular drag chain wound around the sprocket, wherein the part of the drag chain located on one side of the sprocket is connected to the bottom slider, and the part located on the other side of the sprocket is relatively fixed to the fixed column. When the lifting column is lifted up and down, the drag chain can drive the slider installed on the lifting column to lift up and down, thereby driving the blocking member to lift up and down, opening and closing the passage for passengers to get on and off the train.

[0006] In the above-mentioned lifting platform protection device, the barrier can achieve two-stage rise and fall, and the fixed column can be controlled at a lower height, which can improve the problem of the platform protection device blocking the line of sight and improve safety. However, the applicant found that when passengers are waiting for the train on the platform, they usually stand in a position close to the barrier, and the items carried by passengers during the journey, such as trolley cases, hand luggage, etc., are generally placed on the platform floor beside them. If passengers accidentally touch the items, or in windy weather, small items are touched or affected by the wind and there is a high risk of sliding to the track, then the only thing that can block the items may be the lowest barrier. Since the sprocket of the linkage mechanism is installed at the lower end of the lifting column, in order to avoid interference between the slider and the sprocket, the position of the lowest slider should be higher than the sprocket, which makes the lowest barrier higher from the platform floor. In some cases, small items may pass directly between the lowest barrier and the platform floor, and the barrier cannot play the role of blocking the items. Utility Model Content

[0007] The purpose of the utility model is to provide a lifting column of a platform protection device to solve the technical problem that the platform protection device in the prior art has poor blocking ability for small objects sliding along the platform floor. The purpose of the utility model is also to provide a platform protection device to solve the same technical problem.

[0008] In order to achieve the above-mentioned purpose, the technical solution of the lifting column of the platform protection device provided by the utility model is:

[0009] A lifting column of a platform protection device comprises a lifting column body and a plurality of movable blocks arranged up and down and guide-mounted on the lifting column body, a connecting bracket is mounted on the movable block at the lowermost side, at least a portion of the connecting bracket extends downward beyond the bottom surface of the movable block, and a blocking piece connecting position for connecting the blocking piece is provided at the portion of the connecting bracket that extends beyond the bottom surface of the movable block, and the space inside the portion of the connecting bracket that extends downward beyond the bottom surface of the movable block constitutes an avoidance space for avoiding a related transmission mechanism configured with the lifting column.

[0010] As a further improvement, the connecting bracket is connected to the end of the lowermost movable block.

[0011] As a further improvement, a portion of the connecting bracket located at the end of the lowermost movable block is also provided with a barrier member connecting position for connecting the barrier member.

[0012] As a further improvement, the connecting bracket is connected to the bottom surface of the lowermost movable block.

[0013] As a further improvement, the connecting brackets are provided at both left and right ends of the lowermost movable block.

[0014] The utility model improves the lifting column of the existing lifting protection device, and has the beneficial effect that: since the connecting bracket connected to the lowermost movable block has a portion extending beyond the bottom surface of the movable block, the portion can be used to connect the blocking piece, and the space inside the portion can be used to avoid the transmission mechanism on the lifting column (such as the sprocket of the linkage mechanism), the movable block will not interfere with the transmission mechanism when moving up and down. Therefore, compared with the prior art, the height of the blocking piece connected to the portion of the connecting bracket extending beyond the bottom surface of the movable block is lower, thereby reducing the height from the ground of the blocking piece of the platform protection device that can play a blocking and protective role, thereby improving the blocking ability of the platform protection device to small objects sliding along the platform floor.

[0015] In order to achieve the above-mentioned purpose, the technical solution of the platform protection device provided by the utility model is:

[0016] A platform protection device comprises a plurality of lifting columns arranged at intervals at the edge of the platform and a barrier member arranged between two adjacent lifting columns, the lifting columns comprising a fixed column and a lifting column, the lifting column comprising a lifting column body and a plurality of movable blocks arranged up and down and guided and installed on the lifting column body, a connecting bracket is installed on the lowermost movable block, and the connecting bracket at least partially extends downward beyond the bottom surface of the movable block, the barrier member comprises a barrier rope or a barrier belt, at least one barrier rope or barrier belt is connected to the position of the connecting bracket exceeding the bottom surface of the movable block, or the barrier member comprises a barrier net, and the barrier net is at least partially connected to the position of the connecting bracket exceeding the bottom surface of the movable block, and the space on the side of the connecting bracket that extends downward beyond the bottom surface of the movable block and is away from the barrier member constitutes an avoidance space for avoiding the relevant transmission mechanism configured with the lifting column.

[0017] As a further improvement, the connecting bracket is connected to the end of the lowermost movable block.

[0018] As a further improvement, at least one barrier rope or barrier belt is connected to the position of the connecting bracket at the end of the movable block; or the upper side of the barrier net is connected to the position of the connecting bracket at the end of the movable block, and the lower side is connected to the position where the connecting bracket extends downward beyond the bottom surface of the movable block.

[0019] As a further improvement, the connecting bracket is connected to the bottom surface of the lowermost movable block.

[0020] As a further improvement, the connecting brackets are provided at both the left and right ends of the lowermost movable block.

[0021] The utility model improves the existing lifting platform protection device, and the beneficial effects are as follows: Since the connecting bracket connected to the lowermost movable block has a part that extends beyond the bottom surface of the movable block, and a barrier member is connected to this part, and the space on the side of this part away from the barrier member can be used to avoid the transmission mechanism (such as the sprocket of the linkage mechanism) on the lifting column, the movable block will not interfere with the transmission mechanism when moving up and down. Then, compared with the prior art, the height of the barrier member connected to the part of the connecting bracket that extends beyond the bottom surface of the movable block is lower, thereby reducing the ground clearance of the barrier member that can play a barrier protection role of the platform protection device, and further improving the blocking ability of the platform protection device for small items sliding along the platform ground. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of an embodiment of the platform protection device in the utility model;

[0023] Figure 2 is a schematic diagram of one implementation manner of the partial (lower part) of the lifting column in the embodiment of the platform protection device in the utility model;

[0024] Figure 3 is a schematic diagram of another implementation manner of the partial (lower part) of the lifting column in the embodiment of the platform protection device in the utility model.

[0025] Figure 4 is a schematic diagram of another implementation manner of the partial (lower part) of the lifting column in the embodiment of the platform protection device in the utility model;

[0026] Figure 5 is a schematic diagram of the remaining implementation manner of the partial (lower part) of the lifting column in the embodiment of the platform protection device in the utility model.

[0027] Description of the Reference Numerals:

[0028] 1. Lifting column; 101. Fixed column; 102. Lifting column; 103. Lifting column body; 201. First set of barrier components; 202. Second set of barrier components; 203. Third set of barrier components; 204. Fourth set of barrier components; 205. Fifth set of barrier components; 206. Movable block; 207. Connecting bracket; 3. Guide rail; 401. Barrier rope; 402. Barrier tape; 403. Barrier net; 5. Drag chain; 6. Spacing chain; 7. Sprocket. Detailed implementation manners

[0029] In order to solve the problem that the existing platform protection device has a poor barrier effect on small items sliding along the platform ground, the basic technical concept of the present utility model is to provide a connecting bracket on the lowermost movable block that extends downward beyond the bottom surface of the movable block, and connect a barrier component at this position, which reduces the minimum ground clearance of the barrier component of the platform protection device, thereby improving the barrier ability for small items.

[0030] The following further describes the present utility model in detail in conjunction with embodiments.

[0031] Specific embodiments of the platform protection device provided by the present utility model:

[0032] The platform protection device provided in this embodiment as a whole is as Figure 1 shown, and includes a lifting column 1, and the lifting column 1 is used to be arranged at intervals on the edge of the platform, and multiple groups of barrier components arranged up and down are connected between two adjacent lifting columns 1. Figure 1 Only the situation of two lifting columns 1 is given exemplarily. Actually, according to the length of the platform, those skilled in the art can flexibly set the positions and quantities of the lifting columns 1. The lifting column 1 can adopt the lifting column 1 in the prior art, and specifically includes a fixed column 101 and a lifting column 102 that moves up and down relative to the fixed column 101 within a set lead.

[0033] Figure 1 Five groups of barrier components arranged up and down are connected between two adjacent lifting columns 1 in

[0034] such as Figure 2As shown in the figure, the lifting column 102 includes a lifting column body 103. An active block 206 is installed on the lifting column body 103. The number of active blocks 206 is the same as the number of groups of blocking members. For example, the first group of blocking members 201 to the fifth group of blocking members 205 are all correspondingly connected to an active block. Or the number of active blocks 206 is one less than the number of groups of blocking members. For example, the first group of blocking members 201 is located at the highest position and can be connected to the lifting column body 103 through a fixed block that is fixed relative to the lifting column body 103. The second group of blocking members 202 to the fifth group of blocking members 205 are all correspondingly connected to an active block.

[0035] Between the active block 206 connected to the fifth group of blocking members 205, that is, the lowermost active block 206 and the lifting column body 103, there is a linkage driving mechanism. When the lifting column 102 rises, the active block 206 can be driven to move upward relative to the lifting column body 103 through the linkage driving mechanism, and the active blocks connected to the blocking members above it can be pushed to move upward. The linkage driving mechanism can also adopt the prior art. For example, the transmission mechanism including a dragging chain 5 disclosed in the patent application with the application publication number CN117698772A by the applicant. A sprocket 7 is installed at the lower end position of the lifting column body 103. Of course, the dragging chain can also be replaced by a synchronous belt, and the sprocket 7 can be replaced by a pulley.

[0036] When the lifting column 102 descends, under the gravity of the active block 206 and the blocking members connected to the active block 206, the active block descends to the lowest position and is kept at a determined position under the pulling force of the distance-determining flexible member. The connection method of the distance-determining flexible member can be the same as the prior art, and a high-strength distance-determining chain 6 can be specifically selected. In addition, the guiding cooperation method between the active block 206 and the lifting column body 103 can also adopt the prior art. For example, rollers or balls can be installed at one end of the active block 206 close to the lifting column body 103, and a guide rail 3 can be installed on the lifting column body 103. The rollers or balls can roll along the guide rail 3.

[0037] The following describes the lowermost movable block 206 that is different from the prior art and the connecting bracket connected to the movable block 206. A connecting bracket 207 is installed on the lowermost movable block 206. The connecting bracket 207 can be used to connect the barrier member, and the specific connection method with the barrier member is the prior art. For example, the connecting bracket 207 can be welded or connected to the movable block 206 by screws. Different from the prior art, in this embodiment, a part or all of the connecting bracket 207 extends downward beyond the bottom surface of the movable block 206, and the barrier member is connected at the position beyond the bottom surface of the movable block 206. That is, for the connecting bracket, the extended part has a barrier connection position for connecting the barrier member, and the space inside the extended part (the center is the inside) or the space on the side away from the barrier member is used as an avoidance space for the relevant transmission mechanism (such as the sprocket 7) configured for the lifting column. In this way, the height of the barrier member that can play a barrier role at the lowermost side of the platform protection device can be reduced without major modifications to the rest of the structure of the platform protection device, so as to block small items sliding along the platform ground.

[0038] The connecting bracket 207 can be connected to the end of the movable block 206. Here, the end includes the left end face, the right end face, and the front end face (the end face away from the lifting column body 103) of the movable block 206. Specifically, as Figure 2 shown, the connecting bracket 207 can be connected to the front end face of the movable block 206. At this time, a part of the connecting bracket 207 is located in front of the movable block 206, and a part extends downward beyond the bottom surface of the movable block 206. As Figure 3 shown, the connecting bracket 207 can also be connected to the right end face of the movable block 206. At this time, a part of the connecting bracket 207 is located at the right end of the movable block 206, and a part extends downward beyond the bottom surface of the movable block.

[0039] In the above-described manner of connecting the connecting bracket 207 to the end of the movable block, basically, the part of the connecting bracket that extends downward beyond the bottom surface of the movable block should be connected to the barrier member. Of course, the part of the connecting bracket located at the end of the movable block can also be connected to the barrier member, that is, the part of the connecting bracket located at the end of the movable block 206 also has a barrier connection position for connecting the barrier member.

[0040] Specifically, as an implementation manner of the barrier member, the barrier member includes a single barrier member. The single barrier member can be a barrier rope 401 (round rope) or a barrier belt 402 (flat belt), as Figure 2 and Figure 3As shown in the figure, two barrier ropes 401 are connected to the part of the connecting bracket that extends beyond the bottom surface of the movable block 206, and two barrier ropes 401 and a barrier belt 402 are connected to the part of the connecting bracket at the end of the movable block 206, and the wide surface of the barrier belt 402 extends in the up and down direction. The barrier area of the barrier member formed by such a combination is relatively large and the strength is also relatively high. Of course, for such a single-barrier member, if it can play a barrier role, in other embodiments, there should be at least one barrier member connected to the position of the connecting bracket that extends downward beyond the bottom surface of the movable block, such as a barrier belt or a barrier rope.

[0041] As another embodiment of the barrier member, the barrier member can actually also be a mesh structure, that is Figure 4 the barrier net 403 in Figure 4 For example, since there are barrier member connection positions for connecting the barrier member at both the end part of the movable block 206 and the part that extends beyond the bottom surface of the connecting bracket 207, the upper side of the barrier net 403 is connected to the position of the connecting bracket 207 at the end of the movable block, and the lower side is connected to the position of the connecting bracket that extends downward beyond the bottom surface of the movable block. The barrier net 403 has a relatively large barrier area and can also achieve a good barrier effect. Of course, in other embodiments, if the width of the barrier net 403 in the up and down direction is relatively narrow, the barrier net 403 can also be entirely connected to the position of the connecting bracket 207 that extends beyond the bottom surface of the movable block.

[0042] The movable bracket 207 can also be directly connected to the bottom surface of the movable block, as Figure 5 shown in the figure, so that the connecting bracket is entirely located beyond the movable bottom surface. Similarly, at this time, the barrier member can also be a single-barrier member or a barrier net.

[0043] It should be noted that in the attached drawings, only the case where the connecting bracket 207 is connected to the right end part (position) of the movable block 206 is exemplarily shown. At this time, for the platform protection device, two lifting columns need to be configured for the lifting column to achieve complete protection on both the left and right sides. Of course, in other embodiments, the connecting brackets 207 can be connected to both the left and right ends of the movable block 206, so that barrier members can be connected to both the left and right sides of the same lifting column.

[0044] It should also be noted that in other embodiments, a driving motor for driving the lifting column 102 to move up and down relative to the fixed column 101 is further provided below the lowermost movable block 206. That is to say, the space inside the part of the connecting bracket 207 that extends beyond the bottom surface of the movable block can also be used to avoid the driving motor.

[0045] Specific embodiments of the lifting column of the platform protection device in the present utility model:

[0046] The embodiment of the lifting column of the platform protection device is the lifting column described in the above-mentioned embodiment of the platform protection device, and will not be specifically described here.

Claims

1. A lifting column of a platform protection device, comprising a lifting column body and a plurality of movable blocks arranged up and down and guided and mounted on the lifting column body, characterized in that: A connecting bracket is installed on the lowermost movable block, and at least a portion of the connecting bracket extends downward beyond the bottom surface of the movable block, and a barrier member connecting position for connecting the barrier member is provided on the portion of the connecting bracket extending beyond the bottom surface of the movable block, and the space inside the portion of the connecting bracket extending downward beyond the bottom surface of the movable block constitutes an avoidance space for avoiding the relevant transmission mechanism configured with the lifting column.

2. The lifting column of the platform protection device according to claim 1 is characterized in that: The connecting bracket is connected to the end of the lowermost movable block.

3. The lifting column of the platform protection device according to claim 2 is characterized in that: The portion of the connecting bracket located at the end of the lowermost movable block is also provided with a barrier member connecting position for connecting the barrier member.

4. The lifting column of the platform protection device according to claim 1 is characterized in that: The connecting bracket is connected to the bottom surface of the lowermost movable block.

5. The lifting column of the platform protection device according to any one of claims 1 to 4, characterized in that: The left and right ends of the lowermost movable block are both provided with the connecting brackets.

6. A platform protection device, comprising a plurality of lifting columns arranged at intervals at the edge of the platform and a barrier provided between two adjacent lifting columns, the lifting columns comprising a fixed column and a lifting column, the lifting column comprising a lifting column body and a plurality of movable blocks arranged up and down and guided and mounted on the lifting column body, characterized in that: A connecting bracket is installed on the lowermost movable block, and at least a portion of the connecting bracket extends downward beyond the bottom surface of the movable block. The blocking member includes a blocking rope or a blocking belt, and at least one blocking rope or a blocking belt is connected to the position of the connecting bracket that exceeds the bottom surface of the movable block, or the blocking member includes a blocking net, and the blocking net is at least partially connected to the position of the connecting bracket that exceeds the bottom surface of the movable block. The space on the side of the connecting bracket that extends downward beyond the bottom surface of the movable block and is away from the blocking member constitutes an avoidance space for avoiding the relevant transmission mechanism configured with the lifting column.

7. The platform protection device according to claim 6, characterized in that: The connecting bracket is connected to the end of the lowermost movable block.

8. The platform protection device according to claim 7, characterized in that: At least one barrier rope or barrier belt is connected to the connecting bracket at the end of the movable block; or the barrier net is connected to the connecting bracket at the end of the movable block on the upper side and connected to the connecting bracket at the position of the movable block downward beyond the bottom surface of the movable block on the lower side.

9. The platform protection device according to claim 6, characterized in that: The connecting bracket is connected to the bottom surface of the lowermost movable block.

10. The platform protection device according to any one of claims 6 to 9, characterized in that: The left and right ends of the lowermost movable block are both provided with the connecting brackets.

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