Lifting isolation device and platform lifting isolation system

Abstract

The utility model belongs to the technical field of platform protection, and particularly provides a lifting isolation device and a platform lifting isolation system. The lifting isolation device comprises a fixed stand column, a lifting driving mechanism and a plurality of moving assemblies moving along the fixed stand column in a guiding mode, the moving assembly on the lowermost side is driven by the lifting driving mechanism, the moving assembly is provided with a protection piece connecting part used for being connected with a protection piece, and a fixing base is arranged at the position, above the moving assembly, of the top end of the fixed stand column. The fixing base is provided with an inhaul cable connecting part used for being connected with an inhaul cable so as to connect the adjacent fixing stand columns. The platform lifting isolation system comprises at least two lifting isolation devices arranged on the platform at intervals. According to the utility model, the height of the fixed upright post is fully utilized, and the pull rope is utilized to play a role in preventing climbing, so that the protection safety is improved. Meanwhile, the overall strength and stability can be enhanced through the inhaul cables, and therefore the fixed stand columns can be conveniently arranged to be high.

Description

Technical Field

[0001] The utility model belongs to the technical field of platform isolation and protection, and particularly relates to a lifting isolation device and a platform lifting isolation system. Background Art

[0002] Rail transit has become an important mode of transportation for passengers. However, some passengers have weak safety awareness and often walk across the platform safety line. Once a passenger accidentally falls from the platform or intentionally climbs over it, it may cause a serious safety accident. Therefore, it is very necessary to configure isolation safety devices on the platform.

[0003] There are two main types of lifting isolation safety devices used in subways and passenger railways in the prior art. The commonly used one is a double-opening sliding door type safety door, such as the subway platform safety door disclosed in the Chinese utility model patent with authorization announcement number CN215971483U (publication date: 2022.03.08). This type of safety door is divided into two types: half-height safety door and full-height safety door. Some subway platforms and high-speed rail platforms are located in an open environment to the outside. Unlike subway stations in tunnels, there is no supporting foundation for installing full-height safety doors above them. Half-height safety doors are currently the most widely used safety doors. However, the height of the half-height safety door is relatively low, and if passengers intend to climb over it, the protection safety is insufficient.

[0004] The other is a lifting isolation safety device. The lifting isolation safety device has a relatively simple structure and is suitable for use in an external open environment. For example, the platform lifting safety device disclosed in the Chinese invention patent application with application publication number CN113442951A (publication date: 2021.09.28) includes a fixed column (box), a lifting assembly, a safety rope (protective member), a limiter, etc. The lifting assembly includes a chain traction mechanism and a plurality of pulley assemblies arranged up and down. Two adjacent pulley assemblies are connected by a belt. The pulley assembly can be guided up and down relative to the fixed column. The safety rope is connected to the pulley. On the wheel assembly, the lowest pulley assembly is connected to the traction chain in the chain traction mechanism. When the door needs to be opened, the lowest pulley assembly moves upward under the action of the traction chain, and pushes the pulley assembly above it to move upward until the pulley assemblies are collected as a whole, and then move upward as a whole to bring the safety rope to a suitable height; when the door needs to be closed, the whole formed by the pulley assemblies moves downward first until the limit member stops the uppermost pulley assembly to determine the position of the uppermost pulley assembly, and then under the action of gravity and the connection of the belt, the other pulley assemblies move downward to lower the safety rope to a suitable height.

[0005] The rising process of the above-mentioned lifting safety device includes two steps: collecting all the pulley assemblies into a whole under the pushing action of the lowest pulley assembly, and then rising as a whole. That is, the uppermost pulley assembly needs to rise to a certain height to meet the passengers' passage needs. In other words, in essence, the above-mentioned lifting safety device is still a semi-height safety device, and the protection safety is still insufficient.

[0006] In view of this, in order to ensure the safety of passengers, it is necessary to provide a fully protective lifting isolation safety device that can be installed in an open platform environment. Utility Model Content

[0007] The purpose of the utility model is to provide a lifting isolation device to solve the technical problem of insufficient protection safety of the semi-high lifting isolation device in the prior art. The purpose of the utility model is also to provide a platform lifting isolation system to solve the same technical problem.

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

[0009] A lifting isolation device comprises a fixed column, a lifting drive mechanism, and a plurality of movable components guided and moved along the fixed column. The lowermost movable component is driven by the lifting drive mechanism. The movable component is provided with a protective component connecting portion for connecting a protective component. A fixed seat is provided at the top position of the fixed column above the movable component. The fixed seat is provided with a cable connecting portion for connecting a cable to connect adjacent fixed columns.

[0010] As a further improvement, the uppermost moving assembly is connected to the fixed seat via a flexible connection piece, and two adjacent moving assemblies are connected at a fixed distance via the flexible connection piece.

[0011] As a further improvement, the cable is a steel wire rope or a safety rope.

[0012] As a further improvement, the moving assembly includes a moving seat and a roller mounted on the moving seat, and the roller and the fixed column are in rolling cooperation.

[0013] As a further improvement, the fixed column is a frame structure, the roller rolls with the inner wall of the fixed column, and at least one of the left and right sides of the fixed column is provided with a groove for the movable seat or the protective piece connected to the movable seat to pass through and move up and down.

[0014] As a further improvement, the through grooves are provided on both the left and right sides of the fixed column, and the movable components are arranged in pairs on the left and right sides of the fixed column.

[0015] As a further improvement, the lifting drive mechanism includes a driving motor, a driving wheel, a driven wheel and an annular traction member wound around the driving wheel and the driven wheel. The annular traction member includes two, and the moving components on the left and right sides are respectively connected to different annular traction members.

[0016] As a further improvement, a guide rail for rolling cooperation with the roller guide is provided on one side surface on the front and rear sides of the fixed column. The roller includes at least two rollers arranged at intervals on the left and right, and the rollers respectively roll with the left and right guides of the same guide rail.

[0017] As a further improvement, the guide rails include at least two rails spaced apart from each other.

[0018] As a further improvement, two guide rails are arranged at intervals on the left and right sides of the fixed column, and the rollers include at least two rollers arranged at intervals on the left and right, and the rollers are respectively used to guide rolling cooperation with the opposite side or the opposite side of different guide rails.

[0019] The beneficial effects of the utility model are as follows: the utility model belongs to an improved invention. Specifically, when the platform is implemented, more than two lifting isolation devices can be arranged on the platform, and protective parts can be installed on the mobile components, and cables can be installed on the fixed seats. Under the driving action of the lifting drive mechanism, the lowermost mobile component can move upward and push the mobile component above it to move, so as to achieve the effect of opening the door. Compared with the prior art, the utility model is provided with a fixed seat located at the top of the fixed column, and the fixed seat can be used to connect the cable. In actual use, the cable can also play an isolation role, so that the height of the fixed column is fully utilized, which plays a better role in preventing climbing over and improves the protection safety. At the same time, the cable also connects the two adjacent lifting isolation devices into one, strengthens the overall strength and stability, so that it is convenient to set the fixed column to a higher height, which not only meets the protection safety, but also ensures the overall stability of the lifting isolation device.

[0020] In order to achieve the above-mentioned purpose, the technical solution of the platform lifting isolation system provided by the utility model is:

[0021] A platform lifting and isolation system includes at least two lifting and isolation devices arranged at intervals on the platform, the lifting and isolation devices include fixed columns, a lifting drive mechanism, and a plurality of moving components guided and moved along the fixed columns, the lowermost moving component is driven by the lifting drive mechanism, the moving component is provided with a protective element connecting portion for connecting a protective element, a fixed seat is provided at the top position of the fixed column above the moving component, and a cable is connected between the fixed seats on the fixed columns of two adjacent lifting and isolation devices.

[0022] As a further improvement, the uppermost moving assembly is connected to the fixed seat via a flexible connection piece, and two adjacent moving assemblies are connected at a fixed distance via the flexible connection piece.

[0023] As a further improvement, the cable is a steel wire rope or a safety rope.

[0024] As a further improvement, the moving assembly includes a moving seat and a roller mounted on the moving seat, and the roller and the fixed column are in rolling cooperation.

[0025] As a further improvement, the fixed column is a frame structure, the roller rolls with the inner wall of the fixed column, and at least one of the left and right sides of the fixed column is provided with a groove for the movable seat or the protective piece connected to the movable seat to pass through and move up and down.

[0026] As a further improvement, the through grooves are provided on both the left and right sides of the fixed column, and the movable components are arranged in pairs on the left and right sides of the fixed column.

[0027] As a further improvement, the lifting drive mechanism includes a driving motor, a driving wheel, a driven wheel and an annular traction member wound around the driving wheel and the driven wheel. The annular traction member includes two, and the moving components on the left and right sides are respectively connected to different annular traction members.

[0028] As a further improvement, a guide rail for rolling cooperation with the roller guide is provided on one side surface on the front and rear sides of the fixed column. The roller includes at least two rollers arranged at intervals on the left and right, and the rollers respectively roll with the left and right guides of the same guide rail.

[0029] As a further improvement, the guide rails include at least two rails spaced apart from each other.

[0030] As a further improvement, two guide rails are arranged at intervals on the left and right sides of the fixed column, and the rollers include at least two rollers arranged at intervals on the left and right, and the rollers are respectively used to guide rolling cooperation with the opposite side or the opposite side of different guide rails.

[0031] The beneficial effects of the utility model are as follows: the utility model belongs to an improved invention. Specifically, when the platform is implemented, more than two lifting isolation devices can be arranged on the platform, and protective parts can be installed on the mobile components, and cables can be installed on the fixed seats. Under the driving action of the lifting drive mechanism, the lowermost mobile component can move upward and push the mobile component above it to move, so as to achieve the effect of opening the door. Compared with the prior art, the utility model is provided with a fixed seat located at the top of the fixed column, and the fixed seat can be used to connect the cable. In actual use, the cable can also play an isolation role, so that the height of the fixed column is fully utilized, which plays a better role in preventing climbing over and improves the protection safety. At the same time, the cable also connects the two adjacent lifting isolation devices into one, strengthens the overall strength and stability, so that it is convenient to set the fixed column to a higher height, which not only meets the protection safety, but also ensures the overall stability of the lifting isolation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural front view of Embodiment 1 of the lifting and isolating device of the utility model;

[0033] Figure 2 for Figure 1 A schematic diagram of one of the matching forms of the middle roller and the guide rail;

[0034] Figure 3 for Figure 1 A schematic diagram of another matching form of the middle roller and the guide rail;

[0035] Figure 4 for Figure 1 Schematic diagram of another matching form between the middle roller and the guide rail;

[0036] Figure 5 It is a cross-sectional view of Embodiment 2 of the lifting isolation device in the utility model;

[0037] Figure 6 It is a top view of Example 2 of the lifting and isolating device in the utility model.

[0038] Description of reference numerals:

[0039] 1. Driving motor; 2. Speed ​​reducer; 301. Driving wheel; 302. Annular traction member; 303. Driven wheel; 4. Fixed seat; 5. Fixed column; 501. Guide rail; 6. Moving component; 7. Fixed distance chain; 8. Snap buckle; 9. Roller; 10. Synchronous shaft. DETAILED DESCRIPTION

[0040] In the face of the technical problem of insufficient protective safety of half-height lifting isolation devices, the utility model provides a lifting isolation device that can achieve full-height and full-protection effects. A fixed seat is set at the top of the fixed column of the lifting isolation device, and a cable is installed on the fixed seat when in use to connect the fixed columns of two adjacent lifting isolation devices. At the same time, the movable assembly of the lifting isolation device for connecting the protective parts is retained, and the effect of opening and closing the door can also be achieved. Through such a setting, the height of the fixed column is fully utilized, and a cable that can also play an isolation and protection role is set, thereby improving the safety protection performance of the lifting isolation device, especially in preventing passengers from intentionally climbing over. At the same time, the cable connects the two lifting isolation devices into one, which can also play a role in improving the stability of the lifting isolation device. Therefore, it is convenient to configure the fixed column to a higher height, thereby further ensuring the protective safety.

[0041] The present invention is further described in detail below in conjunction with the embodiments and drawings.

[0042] Specific embodiment 1 of the lifting isolation device provided by the utility model:

[0043] The lifting isolation device provided in this embodiment is as follows: Figure 1 As shown, it includes a fixed column 5, a lifting drive mechanism, and a plurality of moving components 6 arranged up and down. The moving component 6 is provided with a protective component connecting portion for connecting a protective component. When in use, the protective component, such as a protective rope, a protective chain, etc., can be connected to the moving component 6. The moving component 6 can be guided and moved up and down along the fixed column 5. The lowermost moving component 6 is driven by the lifting drive mechanism. Under the driving action of the lifting drive mechanism, the lowermost moving component 6 can move upward. In the process of moving upward, the moving component 6 above it is pushed upward, thereby driving the protective component to move upward, thereby achieving the door opening effect.

[0044] Regarding the transmission of driving force between the lifting drive mechanism and the lowermost moving assembly 6, this embodiment provides a solution for directly connecting the lowermost moving assembly 6 and the lifting drive mechanism, such as Figure 1As shown, the lifting drive mechanism in this embodiment includes a driving motor 1, a speed reducer 2, a coupling, a driving wheel 301, a driven wheel 303, an annular traction member 302 wound around the driving wheel 301 and the driven wheel 303, etc. The driving wheel 301 and the driven wheel 303 are all fixed-axis rotating. Specifically, the driving wheel 301 and the driven wheel 303 can be pulleys, and correspondingly, the annular traction member 302 should be a synchronous belt. At this time, the lowermost moving component 6 can be directly connected to the annular traction member 302 through the buckle 8. Of course, in other embodiments, the lowermost moving component 6 may not be directly connected to the annular traction member 302, but a push rod is set on the annular traction member 302. After the push rod contacts the lowermost moving component 6, it can push the moving component 6 to move upward. In this embodiment, a lifting drive mechanism including an annular traction member 302 is provided. In other embodiments, the lifting drive mechanism can also be an electric cylinder, which can be directly connected to the lowermost moving component 6.

[0045] When the door needs to be closed, under the action of gravity and the lifting drive mechanism, the lowermost mobile assembly 6 descends, and the mobile assembly 6 above it also moves downward. In order to ensure that there is still a satisfactory protective effect after the descent, the lifting isolation device is also equipped with a distance structure that determines the distance between two adjacent mobile assemblies 6. In this embodiment, the two adjacent mobile assemblies 6 are connected by a flexible connector, and the uppermost mobile assembly 6 is connected to the fixed seat 4 by a flexible connector. Specifically, the flexible connector can be a distance chain 7, which has higher strength and the folding direction of the chain can be controlled. Each mobile assembly 6 can be connected to the same distance chain 7, or can be connected to each other through an independent distance chain 7. Of course, in other embodiments, the flexible connector can be a belt, a drawstring, etc. In other implementations, the two adjacent mobile assemblies 6 may not be connected, but a limiter is set at a certain distance on the fixed column 5, and the limiter corresponds to the mobile assembly 6 one by one. After the mobile assembly 6 descends to the corresponding position, it can block the mobile assembly 6.

[0046] A fixing seat 4 is provided on the top of the fixed column 5, and the fixed seat 4 is arranged above the moving assembly 6. A cable connecting portion for connecting a cable (not shown in the figure) is provided on the fixed seat 4, and the fixed columns 5 of two adjacent lifting isolation devices can be connected by the cable. The cable plays a protective role on the one hand, and can also play a role in transmitting tension to connect the two adjacent fixed columns 5 as a whole on the other hand. Therefore, the cable should be a rope with a certain strength and a low elongation rate, such as a chain, a wire rope, a safety rope, etc.

[0047] When this embodiment is implemented, it can be installed on a platform, such as an open railway platform. After the installation is completed, a cable can be connected between the fixed columns 5 of two adjacent lifting and isolating devices to form an overall platform lifting and isolating system. In this way, the height of the fixed columns 5 is fully utilized, and the cable is used to play a role of protection and isolation, which has a good effect on preventing passengers from intentionally climbing over. At the same time, under the connection of the cable, each fixed column 5 is connected as a whole and has a higher strength. Therefore, the fixed column 5 can also be configured to a higher height, thereby further strengthening the protection and isolation effect. Of course, the lifting and isolating device in this embodiment can also be used for closed subway platforms, and compared with the sliding door type isolation device, the cost is lower.

[0048] The moving assembly 6 in this embodiment includes a moving seat and a roller ( Figure 1 The movable seat can be a block structure or a bracket structure with a certain strength and can be used to connect the protective member. In order to explain this embodiment clearly, the front and rear directions are first defined as the directions in which passengers get on and off the bus, that is, Figure 1 In the direction perpendicular to the paper, correspondingly, Figure 1 The left and right directions in the diagram are also the left and right directions when passengers get on and off the bus. Specifically, in this embodiment, a guide rail 501 is provided on one side of the front and rear sides of the fixed column 5 (it can be the front side or the rear side), and the roller and the guide rail 501 are in rolling cooperation. Figure 2-Figure 4 As shown, two guide rails 501 are provided. In this way, the roller 9 on the moving seat rolls along the two guide rails 501, and the stability is better. Specifically, as a feasible implementation method, Figure 2 As shown, the rollers 9 are arranged at intervals on the left and right, and guide wheels are arranged on the left and right sides of each guide rail, which is equivalent to the rollers 9 clamping each guide rail. As another feasible embodiment, the rollers 9 are arranged at intervals on the left and right, and the rollers can be guided and rolled along the opposite sides of different guide rails 501, which is equivalent to the rollers clamping two guide rails. As another feasible manner, the rollers 9 are arranged at intervals on the left and right, and the rollers 9 can be guided and rolled along the opposite sides of different guide rails, which is equivalent to the rollers supporting two guide rails.

[0049] In the case where guide wheels are provided on both sides of the same guide rail 501, more than three guide rails 501 may be provided. Of course, in other embodiments, according to the actual space size, only one guide rail 501 may be provided.

[0050] In order to meet the guiding function of the roller and the guide rail, a guide groove or a guide protrusion can be set on the side of the guide rail 501 for cooperating with the roller 9, and the roller 9 is provided with a matching guide protrusion or guide groove, which can play a limiting role in the front and rear directions.

[0051] Specific embodiment 2 of the lifting isolation device provided by the utility model:

[0052] The purpose of this embodiment is to provide a fixed column 5 of a frame structure, where the frame structure refers to a frame structure with an inner cavity extending up and down, which can accommodate the roller 9, and can be a hollow box-shaped frame, or a frame structure formed by a frame and a sealing plate. Figure 5 and Figure 6 As shown, the roller 9 of the moving assembly 6 and the inner wall of the fixed column 5 are rollingly matched. At the same time, in order to meet the installation requirements of the protective member, the fixed column 5 is also provided with through grooves on both sides, such as Figure 6 Shown, the groove can be passed through for a part of the mobile assembly 6, and the groove also has a certain length to satisfy the up and down movement of the mobile assembly 6. Of course, if the mobile assembly 6 is shorter, what actually passes through the groove at this moment is the guard connected to the mobile assembly 6.

[0053] In order to guide the moving assembly 6, a groove can be provided on the inner wall of the fixed column 5, and the roller 9 can roll in the groove to limit the front and rear direction of the roller 9. Of course, a stop bar can also be provided on the inner wall of the fixed column 5 to limit the front and rear direction of the roller 9.

[0054] This embodiment provides a lifting isolation device with double doors on the left and right sides. In fact, for railway platforms, the lifting isolation device at the edge only needs to be provided with a through groove on one side to meet the needs.

[0055] The lifting drive mechanism in this embodiment also includes a flexible traction member. What is different from the first embodiment is that the moving components 6 in this embodiment are arranged in pairs, one on the left and one on the right, and the flexible traction member includes two, and the moving components 6 on the left and right sides are connected to different flexible traction members. The two flexible traction members can be driven by the same driving motor. For example, a synchronous shaft 10 is provided, and two driving wheels 301 are provided on the synchronous shaft 10, so that one motor can drive two flexible traction members. Of course, in other embodiments, the moving components 6 can also be arranged in pairs as shown in the first embodiment, and are directly made into a whole instead of being arranged in pairs on the left and right sides.

[0056] The form of the fixing seat 4 in this embodiment can be consistent with that in Embodiment 1, and will not be described in detail.

[0057] Specific embodiment 3 of the lifting isolation device in the utility model:

[0058] The difference between this embodiment and Embodiment 1 and Embodiment 2 is that the guided movement of the movable component 6 and the fixed column in this embodiment is achieved by the cooperation of the ball slider and the linear guide rail, and its structure is consistent with that of Embodiment 1 or Embodiment 2.

[0059] Specific embodiments of the platform lifting isolation system in the utility model:

[0060] The platform lifting isolation system includes at least two lifting isolation devices. The structure of the lifting isolation device is consistent with the lifting isolation device described in the above embodiment of the lifting isolation device, and a cable is connected between the fixed seats 4 on the fixed columns 5 of two adjacent lifting isolation devices.

[0061] Finally, it should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments without creative work, or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lifting isolation device, comprising a fixed column, a lifting drive mechanism, and a plurality of moving components guided and moved along the fixed column, wherein the lowermost moving component is driven by the lifting drive mechanism, and the moving component is provided with a protective member connecting portion for connecting a protective member, characterized in that: A fixing seat is provided at the top end of the fixed column above the moving assembly, and a cable connecting portion for connecting cables to connect adjacent fixed columns is provided on the fixing seat.

2. The lifting isolation device according to claim 1, characterized in that: The uppermost moving assembly is connected to the fixed seat via a flexible connecting piece, and two adjacent moving assemblies are connected at a fixed distance via the flexible connecting piece.

3. The lifting isolation device according to claim 1 or 2, characterized in that: The cable is a steel wire rope or a safety rope.

4. The lifting isolation device according to claim 1 or 2, characterized in that: The moving assembly comprises a moving seat and a roller mounted on the moving seat, and the roller and the fixed column are in rolling cooperation.

5. The lifting isolation device according to claim 4, characterized in that: The fixed column is a frame structure, the roller and the inner wall of the fixed column are rollingly matched, and at least one of the left and right sides of the fixed column is provided with a groove for the mobile seat or the protective piece connected to the mobile seat to pass through and move up and down.

6. The lifting isolation device according to claim 5, characterized in that: The through grooves are arranged on both the left and right sides of the fixed column, and the movable components are arranged in pairs on the left and right sides of the fixed column.

7. The lifting isolation device according to claim 6, characterized in that: The lifting drive mechanism comprises a driving motor, a driving wheel, a driven wheel and an annular traction member wound around the driving wheel and the driven wheel. The annular traction member comprises two, and the moving components on the left and right sides are respectively connected to different annular traction members.

8. The lifting isolation device according to claim 4, characterized in that: A guide rail for rolling cooperation with roller guides is arranged on one side surface of the front and rear sides of the fixed column. The rollers include at least two rollers arranged at intervals on the left and right sides, and the rollers are respectively rolling cooperation with the left and right guides of the same guide rail.

9. The lifting isolation device according to claim 8, characterized in that: The guide rails include at least two rails which are spaced apart from each other.

10. The lifting isolation device according to claim 4, characterized in that: Two guide rails are arranged at intervals on one side of the front and rear sides of the fixed column, and at least two rollers are arranged at intervals on the left and right. The rollers are respectively used to guide rolling cooperation with the opposite side or the opposite side of different guide rails.

11. A platform lifting isolation system, comprising at least two lifting isolation devices arranged at intervals on the platform, characterized in that: The lifting isolation device is the lifting isolation device according to any one of claims 1 to 10, and a cable is connected between the fixed seats on the fixed columns of two adjacent lifting isolation devices.

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