Platform folding vertical lifting type safety protection device

Abstract

The invention discloses a folding vertical lifting type safety protection device for a platform. The folding vertical lifting type safety protection device comprises a stand column mechanism assembly and a protection rope system. The stand column mechanism assembly comprises a stand column supporting frame, a lead screw transmission mechanism and a rope buckle assembly. The stand column supporting frame is fixedly installed on a platform face. The lead screw transmission mechanism comprises a transmission lead screw fixed to the stand column supporting frame. The lead screw nut is used for fixing the shifting fork; the rope buckle assembly comprises a guide sliding groove which is arranged on the stand column supporting frame in parallel with the transmission lead screw, the top of the guide sliding groove is higher than the top of the transmission lead screw, and a plurality of bearing wheels are arranged on the guide sliding groove. The rope fastener fixing block is fixed with the shifting fork and moves along with the lead screw transmission mechanism; and the rope buckle fixing block is respectively fixed with the topmost joint, the topmost joint and one or more middle joints of the folding connecting rod expansion bracket. A vertical lifting lead screw transmission mechanism and a folding connecting rod linkage structure are adopted, and the transmission mechanism is simple and reliable.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit platforms, and in particular to a platform folding and vertical lifting safety protection device. Background Art

[0002] As my country's intercity / high-speed rail network gradually improves, and the capacity and volume of transportation continue to increase, intercity / high-speed rail travel has gradually become the first choice for more and more domestic passengers. With the increasing number of intercity / high-speed rail passenger flow and the number of trains running, the time interval between train runs has been gradually shortened. At present, the time for intercity / high-speed rail trains to stop at stations has generally been compressed to 2 to 3 minutes. As a result, most stations will have to change the original management method of waiting for the train to enter the station and then checking tickets to enter the station, and change to a method of checking tickets in advance to allow passengers to enter the platform and wait for the train to enter the station and board the train. As a result, the safety of intercity / high-speed rail passengers waiting on the platform has attracted more attention, and platform safety protection has become an issue that needs to be studied in depth.

[0003] Intercity / high-speed rail is available throughout the country, and platforms need to receive and send trains of different models and doors. Obviously, the platform doors of urban rail subway stations with the same spacing and opening are not suitable for platforms of high-speed rail stations. It is necessary to develop a platform lifting safety protection device suitable for intercity / high-speed rail stations. Summary of the invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the background technology, the present invention discloses a platform folding and vertical lifting safety protection device.

[0005] Technical solution: The platform folding and vertical lifting safety protection device described in the present invention includes a column mechanism assembly and a protection rope system; The column mechanism assembly comprises: a column support frame, a screw transmission mechanism and a rope lock assembly; The column support frame is fixedly installed on the platform surface; The screw transmission mechanism comprises: A transmission screw rod, which is arranged vertically and has two ends fixed to the column support frame; A screw nut, on which a shift fork is fixed; The cord lock assembly comprises: A guide chute, which is arranged on the column support frame in parallel with the transmission screw and has a top higher than the top of the transmission screw, and a plurality of load-bearing wheels are arranged on the guide chute; The rope lock fixing block is fixed on each load-bearing wheel respectively, and the rope lock fixing block at the bottom is fixed to the shift fork and moves with the screw transmission mechanism; A folding connecting rod telescopic frame, wherein the folding connecting rod telescopic frame is in a multi-joint circulation form, and the rope buckle fixing block is respectively fixed to the top joint, the top joint and one or more middle joints of the folding connecting rod telescopic frame; When the screw nut rises, the rope buckle fixing block at the bottom moves upward, pushing the folding connecting rod telescopic frame to contract until they move upward together; when the screw nut descends, the rope buckle fixing block at the bottom moves downward, pulling the folding connecting rod telescopic frame to expand, until they descend together; The protective rope system comprises a transverse rope, both ends of which are provided with a column mechanism assembly, and the protective rope system is connected to the column mechanism assembly by fixing the end of the transverse rope to a rope buckle fixing block.

[0006] Furthermore, the column support frame includes a base plate, on which columns are arranged, and the base plate is fixed to the platform surface by anchor bolts.

[0007] Furthermore, the motor head of the transmission screw is arranged at the bottom and is fixed to the column support frame through a motor bracket.

[0008] Furthermore, a bottom limit block and a top limit block are respectively provided at the bottom and top of the guide slide groove, which respectively limit the movement of the bottom rope buckle fixing block and the top rope buckle fixing block. When the screw nut rises, the top rope buckle fixing block stops when it reaches the top limit block until the folding connecting rod telescopic frame is fully retracted; the side edge of the top rope buckle fixing block protrudes from the other rope buckle fixing blocks in the vertical direction, and an intermediate limit block is provided on one side of the guide slide groove. When the screw nut descends, the protruding position of the top rope buckle fixing block is first limited by the intermediate limit block, and the lower rope buckle fixing block continues to descend until the bottom rope buckle fixing block reaches the bottom limit block, and the folding connecting rod telescopic frame is fully unfolded.

[0009] Furthermore, the load-bearing wheel is provided with a fixed shaft rod perpendicular to the guide slide groove surface, and the fixed shaft rod is penetrated at the cross joint of the rope buckle fixing block and the folding connecting rod telescopic frame; The transverse rope is fastened to the rope buckle fixing block through the rope buckle pressing block.

[0010] Furthermore, the protective rope system also includes vertical ropes, which are sewn on the transverse ropes at intervals to fix the transverse ropes at the same vertical position.

[0011] Furthermore, each column support frame is provided with two sets of screw transmission mechanisms and rope lock assemblies, and the two rope lock assemblies are oriented in opposite directions and are respectively connected to the protective rope systems.

[0012] Beneficial effects: Compared with the prior art, the advantages of the present invention are: 1. It adopts the direct lifting screw transmission mechanism and the folding connecting rod linkage structure. The transmission mechanism is simple and reliable: the motor drives the screw nut pair to move, driving the folding connecting rod to move up and down; 2. Drive the bottom rope buckle assembly and synchronously drive the other rope buckle assemblies on the connecting rod assembly, realizing the function of single power linkage, thereby realizing the rising and contracting state of the protective rope system; 3. The rope buckle assembly connected by the connecting rod assembly uses the deadweight and limit principle to realize the lowering and unfolding state of the protective rope system; 4. The bilateral independent traction method is adopted to achieve unit independence, and independent isolation and maintenance can be carried out in case of failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an expanded structural diagram of the folding connecting rod telescopic frame of the present invention; Figure 2 This is an internal cross-sectional view of the rope lock fixing block of the present invention; Figure 3 This is a diagram of the contraction structure of the folding connecting rod telescopic frame of the present invention. DETAILED DESCRIPTION

[0014] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] like Figure 1-3 The platform folding vertical lifting safety protection device shown includes a column mechanism assembly X and a protection rope system Y.

[0016] The column mechanism assembly X comprises: a column support frame, a screw transmission mechanism and a rope lock assembly.

[0017] The column support frame is fixedly installed on the platform surface. The column support frame includes a base plate 101 , on which columns 102 are arranged. The base plate 101 is fixed to the platform surface through anchor bolts 103 .

[0018] The screw transmission mechanism comprises: The transmission screw 201 is vertically arranged, and both ends are fixed to the column support frame. The motor head of the transmission screw 201 is arranged at the bottom and fixed to the column support frame through a motor bracket.

[0019] A screw nut 202, on which a shift fork 203 is fixed; The cord lock assembly comprises: A guide slot 301, wherein the guide slot 301 and the transmission screw 201 are arranged on the column support frame in parallel, and the top is higher than the top of the transmission screw 201, and a plurality of bearing wheels 302 are arranged on the guide slot 301; The rope lock fixing block 303 is fixed on each load-bearing wheel 302, and the rope lock fixing block 303 at the bottom is fixed to the shift fork 203 and moves with the screw transmission mechanism; A folding connecting rod telescopic frame 304, wherein the folding connecting rod telescopic frame 304 is a multi-joint circulation form, and the rope buckle fixing block 303 is respectively fixed to the top joint, the top joint and one or more middle joints of the folding connecting rod telescopic frame 304; When the screw nut 202 rises, the bottom rope buckle fixing block 303 moves upward, pushing the folding connecting rod telescopic frame 304 to contract until they move upward together; when the screw nut 202 descends, the bottom rope buckle fixing block 303 moves downward and pulls the folding connecting rod telescopic frame 304 to expand until they descend together.

[0020] The bottom and top of the guide slot 301 are respectively provided with a bottom limit block 305 and a top limit block 306, which respectively limit the movement of the bottom rope buckle fixing block 303 and the top rope buckle fixing block 303. When the screw nut 202 rises, when the top rope buckle fixing block 303 reaches the top limit block 306, it stops until the folding connecting rod telescopic frame 304 is fully retracted; the side edge of the top rope buckle fixing block 303 protrudes from the other rope buckle fixing blocks in the vertical direction, and an intermediate limit block 307 is provided on one side of the guide slot 301. When the screw nut 202 descends, the protruding position of the top rope buckle fixing block 303 is first limited by the intermediate limit block 307, and the lower rope buckle fixing block 303 continues to descend until the bottom rope buckle fixing block 303 reaches the bottom limit block 305, and the folding connecting rod telescopic frame 304 is fully unfolded.

[0021] The load-bearing wheel 302 is provided with a fixed shaft 308 perpendicular to the surface of the guide slot 301, and the fixed shaft 308 is passed through the cross joint of the rope buckle fixing block 303 and the folding connecting rod telescopic frame 304; The transverse rope 401 is fastened to the rope buckle fixing block 303 through the rope buckle pressing block 309 .

[0022] The protection rope system Y includes a transverse rope 401 , and a column mechanism assembly X is provided at both ends of the transverse rope 401 . The protection rope system Y is connected to the column mechanism assembly X by fixing the ends of the transverse rope 401 to the rope buckle fixing block 303 .

[0023] The protective rope system Y also includes vertical ropes, which are sewn on the transverse ropes 401 at intervals to fix the transverse ropes 401 at the same vertical position.

[0024] Two sets of screw drive mechanisms and rope lock assemblies are provided on each column support frame. The two rope lock assemblies are oriented in opposite directions and are connected to the protective rope system Y respectively.

[0025] The fixing method in the device adopts welding or fastener bolting known to those skilled in the art as needed.

Claims

1. A platform folding and vertical lifting safety protection device, characterized in that: It includes a column mechanism assembly (X) and a protective rope system (Y); The column mechanism assembly (X) comprises: a column support frame, a screw drive mechanism and a rope lock assembly; The column support frame is fixedly installed on the platform surface; The screw transmission mechanism comprises: A transmission screw rod (201), the transmission screw rod (201) is arranged vertically, and both ends are fixed to the column support frame; A screw nut (202), a shift fork (203) being fixed on the screw nut (202); The cord lock assembly comprises: A guide slide groove (301), the guide slide groove (301) and the transmission screw rod (201) are arranged in parallel on the column support frame, and the top is higher than the top of the transmission screw rod (201), and a plurality of load-bearing wheels (302) are arranged on the guide slide groove (301); A rope lock fixing block (303) is fixed on each load-bearing wheel (302), and the rope lock fixing block (303) at the bottom is fixed to the shift fork (203) and moves with the screw transmission mechanism; A folding connecting rod telescopic frame (304), wherein the folding connecting rod telescopic frame (304) is in a multi-joint circulation form, and the rope lock fixing block (303) is respectively fixed to the top joint, the top joint and one or more middle joints of the folding connecting rod telescopic frame (304); When the screw nut (202) rises, the bottom rope lock fixing block (303) moves upward, pushing the folding connecting rod telescopic frame (304) to contract until they move upward together; when the screw nut (202) descends, the bottom rope lock fixing block (303) moves downward, pulling the folding connecting rod telescopic frame (304) to expand, until they descend together; The protective rope system (Y) comprises a transverse rope (401), and a column mechanism assembly (X) is arranged at both ends of the transverse rope (401). The end of the transverse rope (401) is fixed to a rope buckle fixing block (303), thereby realizing the connection between the protective rope system (Y) and the column mechanism assembly (X).

2. The platform folding and vertical lifting safety protection device according to claim 1 is characterized in that: The column support frame comprises a base plate (101), on which columns (102) are arranged, and the base plate (101) is fixed to the platform surface by anchor bolts (103).

3. The platform folding and vertical lifting safety protection device according to claim 1 is characterized in that: The motor head of the transmission screw rod (201) is arranged at the bottom and is fixed to the column support frame via a motor bracket.

4. The platform folding and vertical lifting safety protection device according to claim 1 is characterized in that: The bottom and top of the guide slot (301) are respectively provided with a bottom limit block (305) and a top limit block (306) to limit the movement of the bottommost rope buckle fixing block (303) and the topmost rope buckle fixing block (303), respectively. When the screw nut (202) rises, the topmost rope buckle fixing block (303) stops when it reaches the top limit block (306) until the folding connecting rod telescopic frame (304) is completely retracted; the topmost rope buckle fixing block (30 3) The remaining rope lock fixing blocks protrude from the side in the vertical direction, and an intermediate limit block (307) is provided on one side of the guide slide groove (301). When the screw nut (202) descends, the protruding position of the top rope lock fixing block (303) is first limited by the intermediate limit block (307), and the rope lock fixing blocks (303) below continue to descend until the bottom rope lock fixing block (303) reaches the bottom limit block (305), and the folding connecting rod telescopic frame (304) is fully unfolded.

5. The platform folding and vertical lifting safety protection device according to claim 1 is characterized in that: The load-bearing wheel (302) is provided with a fixed shaft rod (308) perpendicular to the surface of the guide slide groove (301), and the fixed shaft rod (308) is passed through the cross joint of the rope buckle fixing block (303) and the folding connecting rod telescopic frame (304); The transverse rope (401) is fastened to the rope buckle fixing block (303) via the rope buckle pressing block (309).

6. The platform folding and vertical lifting safety protection device according to claim 1 is characterized in that: The protective rope system (Y) further comprises vertical ropes which are sewn at intervals on the transverse ropes (401) to fix the transverse ropes (401) at the same vertical position.

7. The platform folding and vertical lifting safety protection device according to claim 1 is characterized in that: Two sets of screw drive mechanisms and rope lock assemblies are arranged on each column support frame. The two rope lock assemblies are oriented in opposite directions and are respectively connected to the protective rope system (Y).

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