Platform vertical lifting type safety protection device

Abstract

The invention discloses a vertical lifting type safety protection device for a platform. The 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 lead screw transmission mechanism comprises a transmission lead screw which is vertically arranged, and the two ends of the transmission lead screw are fixed to the stand column supporting frame. A shifting fork is fixed on the lead screw nut; the rope buckle assembly comprises a vertical guide rail which is arranged on the stand column supporting frame in parallel with the transmission lead screw, the top of the vertical guide rail is higher than the top of the transmission lead screw, a plurality of guide rail sliding blocks are arranged on the vertical guide rail, and the bottommost guide rail sliding block is fixed to the shifting fork and moves along with the lead screw transmission mechanism. The rope buckle fixing blocks are respectively fixed on the guide rail sliding blocks and are connected with the guide rail sliding blocks through soft drawstrings; the protection rope system comprises a transverse rope, and stand column mechanism assemblies are arranged at the two ends. A vertical lifting lead screw nut transmission mechanism and a sliding block follow-up structure are adopted for achieving vertical lifting of the system, and the transmission mechanism is simple and reliable.

Description

Technical Field

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

[0005] Technical solution: The platform 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 vertical guide rail, wherein the vertical guide rail and the transmission screw are arranged in parallel on the column support frame, and the top of the vertical guide rail is higher than the top of the transmission screw. A plurality of guide rail sliders are arranged on the vertical guide rail, and the bottom guide rail slider is fixed to the shift fork and moves with the screw transmission mechanism; A rope lock fixing block, wherein the rope lock fixing block is fixed on each guide rail slider, and adjacent rope lock fixing blocks are connected by a soft drawstring; When the screw nut rises, the bottom guide rail slider moves upward, and pushes the other guide rail sliders above to merge in turn until they move upward together; when the screw nut falls, the bottom guide rail slider moves downward, and pulls the other guide rail sliders above to separate in turn until they fall 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 bottom plate with columns arranged on the bottom, and the bottom 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, the bottom and top of the vertical guide rail are respectively provided with a bottom limit block and a top limit block, which respectively limit the movement of the bottom guide rail slider and the top guide rail slider. When the screw nut rises, when the top guide rail slider is located at the top limit block, the column support frame is provided with a buffer limit piece at the top position of the fork corresponding to the fork, and the buffer limit piece and the top limit block respectively limit the bottom limit slider and the top limit slider after the rise; the side edge of the top rope buckle fixing block protrudes from the other rope buckle fixing blocks in the vertical direction, and the side of the vertical guide rail is provided with an intermediate limit block. 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 rope buckle fixing block below continues to descend until the bottom rope buckle is fixed and reaches the bottom limit block. At the same time, the column support frame is also provided with a buffer limit piece at the bottom position corresponding to the fork, and the buffer limit piece buffers and limits the bottom limit slider after the descent.

[0009] Furthermore, the cord lock fixing block is provided with fixing pins for fixing the transverse cord and the soft drawstring respectively, and has holes for the transverse cord and the soft drawstring to extend out.

[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, and a tensioner is provided at the end of each transverse rope.

[0011] Further, a protective cover system is also included; The protective cover system includes a protective cover fixed to the column support frame, a strip-shaped through hole for the horizontal rope to pass through is provided on the side of the protective cover, and an inspection door is opened, and a display screen is provided on the front of the protective cover to display the platform information; Photoelectric protection devices are correspondingly arranged on the sides of adjacent protective covers.

[0012] Furthermore, two column mechanism assemblies are provided in each of the protective covers, and the two column mechanism assemblies located in the same protective cover face oppositely and are respectively connected to the protective rope systems.

[0013] Beneficial effects: Compared with the prior art, the advantages of the present invention are: 1. The main structure is welded by the bottom plate and the columns, and the double-row columns improve the overall strength of the column welded parts; 2. The system is lifted vertically by using the lifting screw nut transmission mechanism and the slider follower structure. The transmission mechanism is simple and reliable. 3. Drive the bottom slider, and then drive the other rope buckle components on the guide rail in turn, realizing the function of single-power follow-up, so as to realize the rising and contracting state of the protection rope system; use soft pull belts to connect the rope buckle components on adjacent sliders, and use the deadweight and limit principle to realize the descending and unfolding state of the protection rope system; 4. A fixed structure is set at one end of the protection rope, and a tensioner tightening structure is set at the other end to ensure the tension of the protection rope system; 5. A safety protection device is installed. When the passenger is below, the safety rope stops slowly and does not rise or fall.

[0014] 6. 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

[0015] Figure 1 It is a diagram showing the rising state of the column mechanism assembly and the protection rope system of the present invention; Figure 2 This is a diagram showing the descending state of the column mechanism assembly and the protective rope system of the present invention; Figure 3 It is a schematic diagram of the descending structure of the column mechanism assembly of the present invention; Figure 4 for Figure 3 Enlarged view of T1 in the middle; Figure 5 for Figure 3 Enlarged view of T2 in the middle; Figure 6 It is a schematic diagram of the rising structure of the column mechanism assembly of the present invention; Figure 7 A top view of the tensioner of the present invention; Figure 8 It is a schematic diagram of the structure of the protective cover system of the present invention. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1 and 2The platform vertical lifting safety protection device shown includes: a column mechanism assembly X and a protection rope system Y; The column mechanism assembly X comprises: a column support frame, a screw transmission mechanism and a rope lock assembly.

[0018] like Figure 3-5 As shown, 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 by anchor bolts 103 .

[0019] 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 the motor bracket. ; A screw nut 202, on which a shift fork 203 is fixed; The cord lock assembly comprises: A vertical guide rail 301, wherein the vertical guide rail 301 and the transmission screw 201 are arranged in parallel on the column support frame, and the top of the vertical guide rail 301 is higher than the top of the transmission screw 201. A plurality of guide rail sliders 302 are arranged on the vertical guide rail 301, and the bottom guide rail slider 302 is fixed to the shift fork 203 and moves with the screw transmission mechanism; A cord lock fixing block 303, wherein the cord lock fixing block 303 is fixed on each guide rail slider 302, and adjacent cord lock fixing blocks 303 are connected by a soft drawstring 304; like Figure 3 and Figure 6 As shown, when the screw nut 202 rises, the bottom rail slider 302 moves upward, and pushes the other rail sliders 302 above to merge in sequence until they move upward together; when the screw nut 202 descends, the bottom rail slider 302 moves downward, and pulls the other rail sliders 302 above to separate in sequence until they descend together; The bottom and top of the vertical guide rail 301 are respectively provided with a bottom limit block 305 and a top limit block 306, which respectively limit the movement of the bottom guide rail slider and the top guide rail slider. When the screw nut 202 rises, when the top guide rail slider is located at the top limit block 306, the column support frame is provided with a buffer limit piece 307 at the top position of the fork 203. The buffer limit piece 307 and the top limit block 306 respectively limit the bottom limit slider and the top limit slider after rising; the top rope buckle fixing block 303 The remaining rope lock fixing blocks protrude from the side in the vertical direction, and an intermediate limit block 308 is provided on the side of the vertical guide rail 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 308, and the rope lock fixing block 303 below continues to descend until the bottom rope lock fixing block 303 reaches the bottom limit block 305. At the same time, a buffer limit component is also provided at the bottom position of the column support frame corresponding to the fork 203, and the buffer limit component buffers and limits the bottom limit slider after the descent.

[0020] The cord lock fixing block 303 is provided with fixing pins for fixing the transverse cord 501 and the soft drawstring 304 respectively, and is provided with holes for the transverse cord 501 and the soft drawstring 304 to extend out.

[0021] The protection rope system Y includes a transverse rope 501 , and a column mechanism assembly X is provided at both ends of the transverse rope 501 . The protection rope system Y is connected to the column mechanism assembly X by fixing the ends of the transverse rope 501 to the rope buckle fixing block 303 .

[0022] It also includes vertical ropes 502, which are sewn on the horizontal ropes 501 at intervals to fix the horizontal ropes 501 at the same vertical position. A tensioner 503 is provided at the end of each horizontal rope 501. Figure 7 shown.

[0023] like Figure 8 As shown, the device also includes a protective cover system Z; The protective cover system Z comprises a protective cover 601 fixed to the column support frame, a strip through hole 602 for the horizontal rope 501 to pass through is provided on the side of the protective cover 601, and an inspection door is provided, and a display screen 603 is provided on the front of the protective cover 601 to display platform information; A photoelectric protection device 604 is correspondingly arranged on the side of the adjacent protection cover 601 .

[0024] Two column mechanism assemblies X are disposed in each of the protective covers 601 . The two column mechanism assemblies X in the same protective cover 601 face in opposite directions and are connected to the protective rope systems 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 vertical lifting safety protection device, characterized in that: include: Column mechanism assembly (X) and protection 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 vertical guide rail (301), wherein the vertical guide rail (301) and the transmission screw (201) are arranged in parallel on the column support frame, and the top of the vertical guide rail (301) is higher than the top of the transmission screw (201), and a plurality of guide rail sliders (302) are arranged on the vertical guide rail (301), and the bottommost guide rail slider (302) is fixed to the shift fork (203) and moves with the screw transmission mechanism; A cord lock fixing block (303), wherein the cord lock fixing block (303) is fixed on each guide rail slider (302) respectively, and adjacent cord lock fixing blocks (303) are connected via a soft drawstring (304); When the screw nut (202) rises, the bottom rail slider (302) moves upward and pushes the other rail sliders (302) above to merge until they move upward together; when the screw nut (202) falls, the bottom rail slider (302) moves downward and pulls the other rail sliders (302) above to separate until they fall together; The protective rope system (Y) comprises a transverse rope (501), and a column mechanism assembly (X) is arranged at both ends of the transverse rope (501). The end of the transverse rope (501) 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 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 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 vertical lifting safety protection device according to claim 1 is characterized in that: The bottom and top of the vertical guide rail (301) are respectively provided with a bottom limit block (305) and a top limit block (306) to limit the movement of the bottom guide rail slider and the top guide rail slider, respectively. When the screw nut (202) rises, when the top guide rail slider is located at the top limit block (306), the column support frame is provided with a buffer limit piece (307) at the top position of the fork (203). The buffer limit piece (307) and the top limit block (306) respectively limit the bottom limit slider and the top limit slider after they rise; the top rope buckle fixing block (303) ) The remaining rope lock fixing blocks protrude from the side in the vertical direction, and the side of the vertical guide rail (301) is provided with an intermediate limit block (308). 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 (308), and the rope lock fixing block (303) below continues to descend until the bottom rope lock fixing block (303) reaches the bottom limit block (305). At the same time, the column support frame is also provided with a buffer limiter at the bottom position of the fork (203), and the buffer limiter buffers and limits the bottom limit slider after it descends.

5. The platform vertical lifting safety protection device according to claim 1 is characterized in that: The cord lock fixing block (303) is provided with fixing pins for fixing the transverse cord (501) and the soft drawstring (304) respectively, and is provided with holes through which the transverse cord (501) and the soft drawstring (304) extend.

6. The platform vertical lifting safety protection device according to claim 1 is characterized in that: The protective rope system (Y) further comprises vertical ropes (502) which are sewn at intervals on the transverse ropes (501) to fix the transverse ropes (501) at the same vertical position, and a tensioner (503) is provided at the end of each transverse rope (501).

7. The platform vertical lifting safety protection device according to claim 1 is characterized in that: Also includes a shield system (Z); The protective cover system (Z) comprises a protective cover (601) fixed to a column support frame, a strip-shaped through hole (602) for a transverse rope (501) to pass through is provided on a side of the protective cover (601), and an inspection door is provided, and a display screen (603) is provided on the front of the protective cover (601) to display platform information; Photoelectric protection devices (604) are correspondingly arranged on the sides of adjacent protection covers (601).

8. The platform vertical lifting safety protection device according to claim 7 is characterized in that: Two column mechanism assemblies (X) are arranged in each of the protective covers (601); the two column mechanism assemblies (X) located in the same protective cover (601) face in opposite directions and are respectively connected to the protective rope system (Y).

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