Platform lifting type safety protection device

Abstract

The invention discloses a platform lifting type safety protection device which comprises a fixed side box mechanism assembly and a protection rope system. The fixed side box mechanism assembly comprises a fixed side box frame, a lead screw nut transmission mechanism and a belt transmission mechanism. The lead screw nut transmission mechanism comprises a roller guide rail sliding block assembly, a transmission lead screw and a cavity profile guide rail. The belt transmission mechanism comprises a belt wheel system and a folding connecting rod telescopic system; the upper end of the annular synchronous belt is fixed by the fixed belt clamp, the lower end of the annular synchronous belt drives the movable belt clamp to move upwards, and then the folding connecting rod telescopic frame is driven to contract. A double-section linkage sliding rail structure is adopted, and a motor drives a lead screw nut pair to drive a sectional material guide rail to do lifting motion; the section bar guide rail drives the synchronous belt to rotate, so that the four connecting rods are in synchronous linkage, the single-power double-linkage function is achieved, the double-section telescopic guide rail structure is adopted, the structure is stable and reliable, the total height of equipment is low, and sight shielding of passengers is effectively reduced.

Description

Technical Field

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

[0005] Technical solution: The platform lifting safety protection device described in the present invention includes: a fixed side box mechanism assembly and a protection rope system; The fixed side box mechanism assembly includes: a fixed side box frame, a screw nut transmission mechanism, and a belt transmission mechanism; The fixed side box frame is fixedly installed on the platform surface; The screw nut transmission mechanism comprises: The roller guide slider assembly is fixed to the fixed side box frame, and is provided with two sets, which are arranged opposite to each other; The transmission screw is arranged between the two sets of roller guide rail slider assemblies, and a shift fork is fixed on the transmission nut thereof; The cavity profile guide rail is fixed to the shift fork and moves up and down under the action of the transmission screw; The belt transmission mechanism comprises: a pulley system and a folding link telescopic system; The pulley system includes a pulley assembly, which is respectively arranged at the four corners of the front side of the cavity profile guide rail and connected to its outer contour through an annular synchronous belt; the fixed side box frame is provided with a fixed belt clamp at the upper position of one side corresponding to the cavity profile guide rail, and the fixed belt clamp is fixedly connected to the annular synchronous belt at the corresponding position, and a movable belt clamp is fixed on the annular synchronous belt corresponding to the lower position of the other side of the cavity profile guide rail; The folding link telescopic system comprises a folding link telescopic frame, the folding link telescopic frame is a multi-joint circulation form, the top joint of the folding link telescopic frame is fixed to the cavity profile guide rail through a flange shaft, the bottom joint and one or more intermediate joints of the folding link telescopic frame are provided with a load-bearing wheel assembly, the load-bearing wheel assembly comprises an axle rod member penetrating the joint and a load-bearing wheel fixed to the axle rod member, and the movable belt clamp is fixed to the load-bearing wheel assembly located at the bottom; When the drive screw drives the cavity profile guide rail upward, the upper end of the annular synchronous belt is fixed by the fixed belt clamp, and the lower end drives the movable belt clamp upward, thereby driving the folding connecting rod telescopic frame to contract, forming a double-stroke mechanism system; The protective rope system includes a transverse rope and a rope lock assembly. The flange shaft and the load-bearing wheel assembly are both fixed with a rope lock assembly. The end of the transverse rope is fixed to the rope lock assembly through a rope pressure block. Fixed side box mechanism assemblies are respectively arranged at both ends of the transverse rope.

[0006] Furthermore, the fixed side box frame includes a base plate, two columns are arranged at intervals on the base plate, a top plate is provided on the top of the columns, the bottom of the base plate is fixed to the platform surface by anchor bolts, and the roller guide slider assemblies are respectively fixed on the columns to form up and down guides.

[0007] Furthermore, the motor head of the transmission screw is arranged on the bottom plate and connected to the bottom of the transmission screw, and the top support of the transmission screw is installed on the top plate.

[0008] Furthermore, two fixed belt clamps are arranged at intervals to respectively fix the two disconnected ends of the endless synchronous belt.

[0009] Furthermore, a guide boss for the up and down movement of the load-bearing wheel is provided at a position on the guide rail surface of the cavity profile corresponding to the load-bearing wheel assembly, and a limit piece for limiting the movement of the bottom load-bearing wheel is provided at the bottom of the guide boss.

[0010] Furthermore, a load-bearing wheel assembly is provided at each joint of the folding connecting rod telescopic frame.

[0011] 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.

[0012] Further, it also includes a protection assembly system; The protection assembly system includes an outer protection cover and an inner protection cover; The outer protective cover is fixed to the fixed side box frame, and the side of the outer protective cover is provided with an outer strip-shaped through hole for the transverse rope to pass through, and the front and back sides of the outer protective cover are provided with maintenance doors; The inner protective cover is fixedly connected to the cavity profile guide rail to protect the belt transmission mechanism and moves up and down with the cavity profile guide rail. The inner protective cover has an inner strip-shaped through hole on the side for the transverse rope to pass through; Brushes are arranged on the inner sides of the outer strip-shaped through holes and the inner strip-shaped through holes.

[0013] Furthermore, a display screen is provided on the front maintenance door to display platform information, the top of the inner protective cover is a rainproof light, and a photoelectric protection device is correspondingly provided on the side of the adjacent outer protective cover.

[0014] Furthermore, two inner protective covers are provided in each of the outer protective covers, and two fixed side box mechanism assemblies located in the same protective assembly system face oppositely and are respectively connected to the protective rope systems.

[0015] Beneficial effects: Compared with the prior art, the advantages of the present invention are: 1. The fixed side box frame adopts an integral frame, and the frame structure improves the overall strength of the fixed side box welded parts; the main bearing guide rail adopts a roller guide slider assembly, and the driven secondary bearing guide rail adopts a cavity profile guide rail. The main and secondary bearing guide rails are set between the inner gears of the columns, and the movement stability is strong; 2. Double-section linkage slide rail structure: The motor drives the screw nut pair to drive the profile guide rail to move up and down; the profile guide rail then drives the synchronous belt to rotate, so that the four-link linkage is synchronized, thus realizing the function of single power double linkage; 3. The double-section telescopic guide rail structure is adopted, which is stable and reliable, and the overall height of the equipment is low, which effectively reduces the obstruction of passengers' vision; 4. Adopt linkage transmission structure to ensure reliable and synchronous operation of telescopic guide rails; 5. The protective rope adopts a connecting rod hinge structure to realize the rising contraction state and the descending expansion state of the protective rope system; 6. Fasteners are used at both ends of the protective rope to tighten the rope pressure block to ensure the tension of the protective rope system; 7. A safety protection device is installed. When the passenger is below, the protection rope stops slowly and does not rise or fall. 8. The bilateral independent traction method is adopted to realize unit independence, and independent isolation and maintenance can be carried out in case of failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the fixed side box mechanism assembly and the protective rope system of the present invention; Figure 2It is a structural diagram of the protection assembly system and the protection rope system of the present invention; Figure 3 It is a structural schematic diagram of one side of the screw nut transmission mechanism of the present invention; Figure 4 for Figure 3 The enlarged image of T1 in the middle; Figure 5 It is a structural schematic diagram of one side of the belt transmission mechanism of the present invention; Figure 6 for Figure 5 The enlarged image of T2 in the middle; Figure 7 for Figure 5 The enlarged view of T3 in the middle; Figure 8 It is a schematic diagram of the contraction structure of the folding connecting rod telescopic frame of the present invention; Fig. 9 It is a side view of the protection assembly system of the present invention. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] like Figure 1 and 2 The platform lifting safety protection device shown includes: a fixed side box mechanism assembly X, a protection rope system Y and a protection assembly system Z.

[0019] like Figure 3-7 As shown, the fixed side box mechanism assembly includes: a fixed side box frame, a screw nut transmission mechanism, and a belt transmission mechanism; The fixed side box frame is fixedly installed on the platform surface. The fixed side box frame includes a bottom plate 101. Two columns 102 are arranged on the bottom plate 101 at intervals. A top plate 103 is arranged on the top of the columns 102. The bottom of the bottom plate 101 is fixed to the platform surface by anchor bolts 104.

[0020] The screw nut transmission mechanism comprises: The roller guide slider assembly 201 is fixed to the fixed side box frame, and is provided with two groups, which are arranged opposite to each other. The roller guide slider assembly 201 is respectively fixed on the column 102 to form an up and down guide.

[0021] The transmission screw 202 is arranged between the two groups of roller guide slider assemblies 201, and a shift fork 203 is fixed on its transmission nut; the motor head 204 of the transmission screw 202 is arranged on the base plate 101 and connected to the bottom of the transmission screw 202, and the top support of the transmission screw 202 is installed on the top plate 103.

[0022] The cavity profile guide rail 205 is fixed to the shift fork 203 and moves up and down under the action of the transmission screw 202; The belt transmission mechanism comprises: a pulley system and a folding link telescopic system; The pulley system includes a pulley assembly 301, which is respectively arranged at the four corners of the front of the cavity profile guide rail 205, and its outer contour is connected by an annular synchronous belt 302; the fixed side box frame is provided with a fixed belt clamp 303 at the upper position of one side corresponding to the cavity profile guide rail 205, and the fixed belt clamp 303 is fixedly connected to the annular synchronous belt 302 at the corresponding position, and a movable belt clamp 304 is fixed on the annular synchronous belt 302 corresponding to the lower position of the other side of the cavity profile guide rail 205; The fixed belt clamps 303 are arranged in two at intervals to fix the two broken ends of the annular synchronous belt 302 respectively, and the belt tightness can be adjusted to ensure the tension of the synchronous belt.

[0023] The folding link telescopic system includes a folding link telescopic frame 401, which is a multi-joint circulation form. The top joint of the folding link telescopic frame 401 is fixed to the cavity profile guide rail 205 through a flange shaft 402. A load-bearing wheel assembly 403 is provided at the bottom joint and one or more intermediate joints of the folding link telescopic frame 401. The load-bearing wheel assembly 403 includes an axial rod member passing through the joint and a load-bearing wheel fixed to the axial rod member. The movable belt clamp 304 is fixed to the load-bearing wheel assembly 403 located at the bottom. In this embodiment, a load-bearing wheel assembly 403 is provided for each joint of the folding link telescopic frame 401.

[0024] A guide boss for the up and down movement of the load-bearing wheel is provided on the surface of the cavity profile guide rail 205 at a position corresponding to the load-bearing wheel assembly 403, and a limit piece for limiting the movement of the bottom load-bearing wheel is provided at the bottom of the guide boss.

[0025] When the drive screw 202 drives the cavity profile guide rail 205 to move upward, the upper end of the annular synchronous belt 302 is fixed by the fixed belt clamp 303, and the lower end drives the movable belt clamp 304 to move upward, thereby driving the folding connecting rod telescopic frame 401 to contract, forming a double-stroke mechanism system. Figures 5 to 8 on the contrary, the folding link telescopic frame 401 is unfolded.

[0026] The protective rope system Y includes a transverse rope 501 and a rope lock assembly 502. The flange shaft 402 and the load-bearing wheel assembly 403 are both fixed with a rope lock assembly 502. The end of the transverse rope 501 is fixed to the rope lock assembly 502 through a rope pressure block 503. Fixed side box mechanism assemblies X are respectively arranged at both ends of the transverse rope 501.

[0027] The protective rope system Y further includes vertical ropes 504 which are sewn at intervals on the transverse ropes 501 to fix the transverse ropes 501 at the same vertical position.

[0028] like Fig. 9 As shown, the protection assembly system Z includes an outer protection cover 601 and an inner protection cover 602 .

[0029] The outer protective cover 601 is fixed to the fixed side box frame, and an outer strip-shaped through hole 606 is provided on the side of the outer protective cover 601 for the transverse rope 501 to pass through, and maintenance doors are provided on the front and back sides.

[0030] The inner protective cover 602 is fixedly connected to the cavity profile guide rail 205 to protect the belt transmission mechanism. It moves up and down with the cavity profile guide rail 205. The inner protective cover 602 has an inner strip-shaped through hole 604 on the side for the transverse rope 501 to pass through. Brushes are disposed inside the outer strip-shaped through holes 606 and the inner strip-shaped through holes 604 .

[0031] A display screen 603 is provided on the front maintenance door to display platform information. The top of the inner protective cover 602 is a rainproof light. Photoelectric protection devices 605 are correspondingly provided on the sides of the adjacent outer protective cover 601, and multiple pairs can be arranged at intervals from bottom to top.

[0032] Two inner protective covers 602 are arranged inside each of the outer protective covers 601 , and two fixed side box mechanism assemblies X located in the same protective assembly system Z face in opposite directions and are respectively connected to the protective rope systems Y.

[0033] The fixing method in the device adopts welding or fastener bolting known to those skilled in the art as needed.

Claims

1. A platform lifting safety protection device, characterized in that: include: Fix the side box mechanism assembly (X) and the protective rope system (Y); The fixed side box mechanism assembly includes: a fixed side box frame, a screw nut transmission mechanism, and a belt transmission mechanism; The fixed side box frame is fixedly installed on the platform surface; The screw nut transmission mechanism comprises: The roller guide slider assembly (201) is fixed to the fixed side box frame, and is provided with two sets, and is arranged opposite to each other; A transmission screw (202) is disposed between two sets of roller guide rail slider assemblies (201), and a shift fork (203) is fixed on the transmission nut thereof; The cavity profile guide rail (205) is fixed to the shift fork (203) and moves up and down under the action of the transmission screw (202); The belt transmission mechanism comprises: a pulley system and a folding link telescopic system; The pulley system comprises a pulley assembly (301), the pulley assembly (301) being respectively arranged at four corners of the front face of the cavity profile guide rail (205), and connected to its outer contour via an annular synchronous belt (302); a fixed belt clamp (303) is provided at an upper position on one side of the fixed side box frame corresponding to the cavity profile guide rail (205), the fixed belt clamp (303) is fixedly connected to the annular synchronous belt (302) at a corresponding position, and a movable belt clamp (304) is fixed on the annular synchronous belt (302) at a lower position on the other side of the cavity profile guide rail (205); The folding link telescopic system comprises a folding link telescopic frame (401), the folding link telescopic frame (401) is in a multi-joint circulation form, the top joint of the folding link telescopic frame (401) is fixed to the cavity profile guide rail (205) via a flange shaft (402), a load-bearing wheel assembly (403) is provided at the bottom joint and one or more intermediate joints of the folding link telescopic frame (401), the load-bearing wheel assembly (403) comprises an axle rod member penetrating the joint and a load-bearing wheel fixed to the axle rod member, and the movable belt clamp (304) is fixed to the load-bearing wheel assembly (403) located at the bottom; When the drive screw (202) operates to drive the cavity profile guide rail (205) to move upward, the upper end of the annular synchronous belt (302) is fixed by the fixed belt clamp (303), and the lower end drives the movable belt clamp (304) to move upward, thereby driving the folding connecting rod telescopic frame (401) to contract, thereby forming a double-stroke mechanism system; The protective rope system (Y) comprises a transverse rope (501) and a rope lock assembly (502); the flange shaft (402) and the load-bearing wheel assembly (403) are both fixed with the rope lock assembly (502); the end of the transverse rope (501) is fixed to the rope lock assembly (502) via a rope pressure block (503); and fixed side box mechanism assemblies (X) are respectively arranged at both ends of the transverse rope (501).

2. The platform lifting safety protection device according to claim 1 is characterized in that: The fixed side box frame comprises a bottom plate (101), two columns (102) are arranged on the bottom plate (101) at intervals, a top plate (103) is arranged on the top of the columns (102), the bottom of the bottom plate (101) is fixed to the platform surface by anchor bolts (104), and the roller guide rail slider assemblies (201) are respectively fixed to the columns (102) to form an up and down guide.

3. The platform lifting safety protection device according to claim 2 is characterized in that: The motor head (204) of the transmission screw (202) is arranged on the bottom plate (101) and connected to the bottom of the transmission screw (202); the top support of the transmission screw (202) is mounted on the top plate (103).

4. The platform lifting safety protection device according to claim 1 is characterized in that: Two fixed belt clamps (303) are arranged at intervals to respectively fix the two disconnected ends of the annular synchronous belt (302).

5. The platform lifting safety protection device according to claim 1 is characterized in that: A guide boss for the up and down movement of the load-bearing wheel is provided at a position on the surface of the cavity profile guide rail (205) corresponding to the load-bearing wheel assembly (403), and a limit piece for limiting the movement of the bottommost load-bearing wheel is provided at the bottom of the guide boss.

6. The platform lifting safety protection device according to claim 1 is characterized in that: The folding connecting rod telescopic frame (401) is provided with a load-bearing wheel assembly (403) at every interval of a joint.

7. The platform lifting safety protection device according to claim 1 is characterized in that: The protective rope system (Y) further comprises vertical ropes (504) which are sewn at intervals on the transverse ropes (501) to fix the transverse ropes (501) at the same vertical position.

8. The platform lifting safety protection device according to claim 1 is characterized in that: It also includes a protection assembly system (Z); The protection assembly system (Z) comprises an outer protection cover (601) and an inner protection cover (602); The outer protective cover (601) is fixed to the fixed side box frame, and the side of the outer protective cover (601) is provided with an outer strip-shaped through hole (606) for the transverse rope (501) to pass through, and the front and back sides of the outer protective cover (601) are provided with maintenance doors; The inner protective cover (602) is fixedly connected to the cavity profile guide rail (205) to protect the belt transmission mechanism, and moves up and down along with the cavity profile guide rail (205). An inner strip-shaped through hole (604) for the transverse rope (501) to pass through is provided on the side of the inner protective cover (602); Brushes are provided inside the outer strip-shaped through hole (606) and the inner strip-shaped through hole (604).

9. The platform lifting safety protection device according to claim 1, characterized in that: A display screen (603) is provided on the front maintenance door to display platform information. The top of the inner protective cover (602) is a rainproof light, and a photoelectric protection device (605) is correspondingly provided on the side of the adjacent outer protective cover (601).

10. The platform lifting safety protection device according to claim 1, characterized in that: Two inner protective covers (602) are arranged inside each outer protective cover (601), and two fixed side box mechanism assemblies (X) located in the same protective assembly system (Z) face opposite directions and are respectively connected to the protective rope system (Y).

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