Platform door hoisting device

Abstract

The utility model relates to the technical field of rail transit, and particularly discloses a platform door hoisting device, which comprises a transport vehicle, a lifting device and a lifting device, the support is fixedly arranged above the transport vehicle, and the support is provided with a supporting beam; the moving mechanism is movably arranged on the supporting beam and comprises a sliding beam, a guide rail, a moving part and a hoisting part, the sliding beam can move in the length direction of the supporting beam, the guide rail and the sliding beam are fixedly arranged, the moving part is movably arranged on the guide rail, and the hoisting part is telescopically arranged at the bottom of the moving part and used for hoisting the platform door; or the platform door is hoisted to move to the platform plate of the platform along the guide rail along with the moving part. According to the platform door hoisting device, the adjustment efficiency and the adjustment precision of the platform door can be improved, the transportation efficiency, the assembly efficiency and the assembly precision of the platform door and the stability of an installation structure are further improved, and waste of labor resources and energy in the assembly process is reduced.

Description

Technical Field

[0001] The present application relates to the field of rail transit technology, and in particular to a platform door hoisting device. Background Art

[0002] At present, the installation of platform doors in rail transit mainly adopts the traditional production method of on-site assembly and construction. The platform doors need to be transferred to the installation site by manpower or transportation tools such as forklifts, and the platform doors are installed manually. The installation process is generally to temporarily fix the platform door by multiple people or forklifts, and then gradually adjust the setting position and angle of the platform door, and fix the platform door to the platform board with bolts and other fasteners.

[0003] However, in the traditional assembly process, the transportation efficiency of platform doors is low, the adjustment accuracy of platform doors depends on the efficiency of manual handling, the labor demand is large, and the waste of labor resources and energy is also high, which reduces the assembly efficiency and assembly accuracy of platform doors and the stability of the installation structure. Utility Model Content

[0004] The purpose of the embodiments of the utility model is to provide a platform door hoisting device, which can solve the problems of low transportation efficiency and low assembly efficiency of platform doors in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] A platform door hoisting device is provided, comprising:

[0007] A transport vehicle, which can be movably arranged on the ground or on tracks;

[0008] A bracket, fixedly arranged above the transport vehicle, the bracket having a support beam;

[0009] A moving mechanism is movably arranged on the support beam, and the moving mechanism includes a sliding beam, a guide rail, a moving part and a lifting part. The sliding beam can move along the length direction of the support beam, and the guide rail is fixed to the sliding beam. The moving part is movably arranged on the guide rail. The lifting part is telescopically arranged on the bottom of the moving part. The lifting part is used to lift the platform door so as to lift the platform door onto the transport vehicle, or, the lifted platform door follows the moving part and moves along the guide rail to the platform board of the platform.

[0010] As a preferred solution of the platform door hoisting device, the guide rail is provided with a accommodating cylinder, the moving mechanism further includes a telescopic rod telescopically arranged in the accommodating cylinder, and the moving part can move along the guide rail to the telescopic rod.

[0011] As a preferred solution for the platform door hoisting device, it also includes:

[0012] A counterweight assembly is movably disposed above the sliding beam, the counterweight assembly is linked with the telescopic rod, and the counterweight assembly is configured so that its moving direction is opposite to the telescopic direction of the telescopic rod.

[0013] As a preferred solution of the platform door hoisting device, the counterweight assembly includes a tensioning wheel, a connecting rope and a counterweight block. The tensioning wheel can be rotatably set on the sliding beam and the guide rail. The counterweight block is set in the middle of the connecting rope and is located above the sliding beam. The two ends of the connecting rope are respectively connected to the telescopic rod. The connecting rope is wound around the tensioning wheel to form a ring, so that when the telescopic rod moves along the guide rail to one side of the bracket, the counterweight assembly follows and moves to the other side of the bracket.

[0014] As a preferred solution for the platform door hoisting device, a connecting groove is provided on the wall of the accommodating cylinder, and the counterweight assembly also includes a synchronization block, which has a first block and a second block. The first block passes through the connecting groove and is fixedly connected to the telescopic rod, and the second block is fixedly connected to both ends of the connecting rope.

[0015] As a preferred solution of the platform door hoisting device, a baffle is fixedly provided at the end of the telescopic rod, and the baffle is used to abut against the moving part.

[0016] As a preferred solution of the platform door hoisting device, the number of the moving mechanisms is at least two, and the platform door hoisting device further includes:

[0017] The connecting rod mechanism has two ends pivotally connected to the two moving parts respectively.

[0018] As a preferred solution of the platform door hoisting device, the connecting rod mechanism includes four connecting rods pivotally connected end to end in sequence, wherein a pivot point of a group of two opposite connecting rods is pivotally connected to the moving part.

[0019] As a preferred solution of the platform door lifting device, the bracket also includes a fixing rod fixedly connected to the support beam, the fixing rod is recessed with a slide groove, and the pivot points of another group of two opposite connecting rods are respectively pivotally connected to the slide groove.

[0020] As a preferred solution of the platform door lifting device, a accommodating cavity is provided in the fixed rod, the sliding groove is opened in the cavity wall of the accommodating cavity, the bracket also includes a sliding rod telescopically arranged in the accommodating cavity, the sliding rod is recessed with an extension groove, and the pivot point of the connecting rod can move in the sliding groove and / or the extension groove.

[0021] As a preferred solution of the platform door hoisting device, the bracket also includes a synchronization rod fixedly arranged at the end of the sliding rod and the end of the telescopic rod.

[0022] As a preferred solution for the platform door lifting device, the bracket also includes a telescopic motor fixedly arranged on the fixed rod, and the output end of the telescopic motor is fixedly connected to the sliding rod so that the telescopic rod and the sliding rod can extend or retract following the output end of the telescopic motor.

[0023] As a preferred solution of the platform door hoisting device, the moving part has a connecting frame, and the connecting frame is sleeved on the two connecting rods to limit the angle between the two connecting rods.

[0024] As a preferred solution of the platform door hoisting device, the moving part includes:

[0025] A pulley, movably disposed on the guide rail;

[0026] A motor is fixedly connected to the hoisting part, the motor has an output shaft, the output shaft is connected to the pulley, and the motor is used to drive the pulley to move along the length direction of the guide rail.

[0027] As a preferred solution of the platform door hoisting device, the moving part also includes:

[0028] Two connection frames are respectively arranged on both sides of the guide rail, the pulleys are rotatably arranged on the connection frames, and the motor and the hoisting part are fixedly arranged on the connection frames.

[0029] As a preferred solution of the platform door hoisting device, the moving part also includes:

[0030] A transmission rod, both ends of which are fixedly connected to the pulleys on the two connection frames;

[0031] The transmission belt is wound around the output shaft of the motor and the transmission rod.

[0032] As a preferred solution of the platform door hoisting device, a reinforcement structure is provided between the sliding beam and the guide rail.

[0033] The beneficial effects of this application are:

[0034] By fixing a bracket on a transport vehicle and arranging a moving mechanism on the support beam of the bracket, since the bracket can be moved along the ground or track by the transport vehicle, and the moving mechanism can also move in the length direction of the support beam, the moving mechanism can be used to hoist the platform door, and the platform door can also be transported on the track or the ground. The moving mechanism includes a sliding beam, a guide rail, a moving part and a hoisting part, the sliding beam is fixedly connected to the guide rail, so that the moving mechanism can move relative to the support beam through the sliding beam, and the moving part is movably arranged on the guide rail, and then the platform door is connected through the hoisting part arranged at the bottom of the moving part, so as to realize the transportation of the platform door along the length direction of the guide rail.

[0035] When the platform door moves along the length direction of the support beam to the front of the platform board at the target installation position, the platform door is maintained in a plumb posture by utilizing gravity. Only the moving distance of the moving part relative to the guide rail needs to be changed to change the installation depth of the platform door relative to the platform board. Compared with the adjustment method of manual or repeated lifting with a forklift, this is beneficial to improving the adjustment efficiency and accuracy of the platform door, and further improving the transportation efficiency, assembly efficiency and accuracy of the platform door as well as the stability of the installation structure, reducing the waste of labor resources and energy during the assembly process. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present application is further described in detail below based on the drawings and embodiments.

[0037] Figure 1 A schematic structural diagram of a platform door lifting device provided in one embodiment of the present application.

[0038] Figure 2 A schematic diagram of the partial structure of a platform door lifting device provided in one embodiment of the present application.

[0039] Figure 3 A schematic diagram of the partial structure of a platform door lifting device provided in another embodiment of the present application.

[0040] Figure 4 A schematic diagram of the partial structure of a platform door lifting device provided in yet another embodiment of the present application.

[0041] Figure 5 A schematic diagram of the partial structure of a platform door hoisting device provided in yet another embodiment of the present application.

[0042] Figure 6 A schematic diagram of the structure of a synchronization block provided in one embodiment of the present application.

[0043] Figure 7 A schematic diagram of the action of a platform door hoisting device provided in an embodiment of the present application hoisting a platform door.

[0044] Figure 8This is a schematic diagram of the actions of the platform door hoisting device provided in one embodiment of the present application after hoisting the platform door.

[0045] In the figure:

[0046] 1. Transport vehicle;

[0047] 2. Bracket; 21. Support beam; 22. Fixed rod; 23. Sliding rod; 24. Synchronous rod; 25. Telescopic motor;

[0048] 3. Moving mechanism; 31. Sliding beam; 32. Guide rail; 33. Moving part; 331. Connecting frame; 332. Pulley; 333. Motor; 334. Transmission rod; 335. Transmission belt; 34. Hoisting part; 35. Telescopic rod; 36. Baffle; 37. Strengthening structure;

[0049] 4. counterweight assembly; 41. tensioning wheel; 42. connecting rope; 43. counterweight block; 44. synchronization block; 441. first block; 442. second block;

[0050] 5. Linkage mechanism; 51. Connecting rod; 9. Platform door. DETAILED DESCRIPTION

[0051] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0052] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0053] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0054] At present, the installation of platform doors 9 in rail transit mainly adopts the traditional production method of on-site assembly construction, which requires manpower or transportation tools such as forklifts to transfer the platform doors 9 to the installation site and manually install the platform doors 9. The installation process generally involves multiple people or forklifts temporarily fixing the platform doors 9, then gradually adjusting the setting position and angle of the platform doors 9, and fixing the platform doors 9 to the platform board of the platform with bolts and other fasteners.

[0055] In order to solve the problem of low transportation efficiency and assembly efficiency of platform door 9 in the prior art, as Figure 1 As shown, this embodiment provides a platform door hoisting device, including:

[0056] The transport vehicle 1 can be movably arranged on the ground or on a track;

[0057] The support 2 is fixedly arranged above the transport vehicle 1, and the support 2 has a support beam 21;

[0058] The moving mechanism 3 is movably arranged on the support beam 21. The moving mechanism 3 includes a sliding beam 31, a guide rail 32, a moving part 33 and a lifting part 34. The sliding beam 31 can move along the length direction of the support beam 21. The guide rail 32 and the sliding beam 31 are fixedly arranged. The moving part 33 is movably arranged on the guide rail 32. The bottom of the moving part 33 is telescopically provided with a lifting part 34. The lifting part 34 is used to lift the platform door 9 so that the platform door 9 is lifted on the transport vehicle 1, or the lifted platform door 9 follows the moving part 33 and moves along the guide rail 32 to the platform board of the platform.

[0059] The present application fixes the bracket 2 on the transport vehicle 1, and sets a moving mechanism 3 on the support beam 21 of the bracket 2. Since the bracket 2 can be moved along the ground or track by the transport vehicle 1, and the moving mechanism 3 can also move in the length direction of the support beam 21, the moving mechanism 3 can be used to hoist the platform door 9, and the long-distance transportation of the platform door 9 can also be realized on the track or the ground. Among them, the moving mechanism 3 includes a sliding beam 31, a guide rail 32, a moving part 33 and a hoisting part 34. The sliding beam 31 is fixedly connected to the guide rail 32, so that the moving mechanism 3 can realize the movement relative to the support beam 21 through the sliding beam 31. At the same time, a moving part 33 is movably set on the guide rail 32, and then the platform door 9 is connected through the hoisting part 34 set at the bottom of the moving part 33, thereby realizing the transportation of the platform door 9 along the length direction of the guide rail 32.

[0060] When the platform door 9 moves along the length direction of the support beam 21 to the front of the platform board at the target installation position, the platform door 9 is maintained in a vertical posture by utilizing the effect of gravity. It is only necessary to change the moving distance of the moving part 33 relative to the guide rail 32 to change the installation depth of the platform door 9 relative to the platform board. Compared with the adjustment method of manual or repeated lifting with a forklift, this is beneficial to improving the adjustment efficiency and adjustment accuracy of the platform door 9.

[0061] Therefore, the platform door hoisting device of the present application can improve the transportation efficiency, assembly efficiency and assembly accuracy of the platform door 9 and the stability of the installation structure, and also reduce the waste of labor resources and energy in the assembly process.

[0062] The platform door hoisting device of the present application is used to hoist the platform door 9, and the following examples are given to illustrate:

[0063] First, determine the number of hanging positions of the platform door 9, change the positions of the corresponding number of mobile mechanisms 3 on the support beam 21 of the bracket 2, and connect the lifting part 34 of the mobile mechanism 3 to the hanging positions of the platform door 9 one by one, so that the platform door 9 is suspended on the support beam 21 through multiple mobile mechanisms 3. Driving the platform door 9 or the mobile mechanism 3 to move relative to the support beam 21 can change the placement center of the platform door 9 relative to the bracket 2 and the transport vehicle to improve the stability of the platform door when the transport vehicle moves. When the transport vehicle 1 is driven to move along the track or the ground, it can carry and lift the platform door 9 to move along the track or the ground until the platform door 9 is aligned with the platform board at the target installation position. Since the platform door 9 is connected to the lifting part 34 of the mobile mechanism 3, the platform door 9 and the mobile mechanism 3 can be regarded as a whole at this time, and force can be directly applied to the platform door 9 or the mobile mechanism 3, which can change the position of the platform door 9 relative to the bracket 2. When the platform door 9 is aligned with the platform board (such as Figure 7 As shown), the moving part 33 is driven by manpower or machine to move relative to the guide rail 32 until the platform door 9 reaches the upper part of the installation position on the platform plate (as shown in FIG. Figure 8As shown in the figure, the hoisting part 34 is lowered from the moving part 33 so that the bottom of the platform door 9 corresponds to the installation position on the platform board, so as to facilitate the subsequent bolt tightening or buckle connection. If it is necessary to further adjust the installation position of the platform door 9 relative to the platform board, it is only necessary to raise the hoisting part 34 again, change the position of the moving part 33 relative to the guide rail 32, and change the position of the sliding beam 31 relative to the support beam 21, so as to change the installation position of the platform door 9 relative to the platform board accordingly. Finally, the edge of the platform door 9 is fixed to the platform board and the door frame of the platform where the platform board is located, and the hoisting of the platform door 9 is completed.

[0064] Preferably, in this embodiment, the length direction of the support beam 21 is perpendicular to the length direction of the sliding beam 31, and the lifting part 34 can also be raised and lowered relative to the ground, so that the platform door 9 can freely adjust the installation position in the spatial coordinate system XYZ to adapt to the installation requirements of the platform door 9, and further improve the installation accuracy of the platform door 9 relative to the platform board and the door frame.

[0065] Furthermore, the present application can set at least two moving mechanisms 3 on the support beam 21, and move along the length direction of the support beam 21 through the sliding beam 31 of the moving mechanism 3. Different hanging positions of the platform door 9 can be connected to the hoisting parts 34 of two or more moving mechanisms 3 accordingly, so as to disperse the pressure on the hoisting parts 34 and the support beam 21, thereby increasing the load of the bracket 2 and the moving mechanism 3. At the same time, it can also hoist the platform door 9 of larger size and heavier weight.

[0066] In a preferred embodiment, the hoisting part 34 of this embodiment is an electric hook, which can infinitely adjust the lifting or lowering distance, and can also keep the hoisting position suspended, which can further reduce the manpower to lift or keep the platform door 9. As for the connection between the electric hook and the hanging position of the platform door 9, it can be directly hooked by the hook to hook the hanging position, or it can be bound by setting a strap between the hook and the hanging position, or it can be detachably connected by setting a bolt fastening plate between the hook and the hanging position, which is not specifically limited in this embodiment.

[0067] In particular, refer to Figure 2, the guide rail 32 is provided with a receiving tube, and the moving mechanism 3 also includes a telescopic rod 35, which is telescopically arranged in the receiving tube, so that the moving part 33 can move along the guide rail 32 to the telescopic rod 35, and the moving distance of the moving part 33 can be extended. When the platform board of the platform is at a certain distance from the guide rail 32 of the moving mechanism 3, the telescopic rod 35 can be used to guide the moving part 33 to move to the top of the platform board, and then the platform door 9 on the hoisting part 34 can be directly unloaded above the platform board, which can further reduce the manual transportation and adjustment process of the platform door 9. In this embodiment, the length of the telescopic rod 35 can be determined according to the distance from the end of the guide rail 32 to the top of the platform board. After the platform door 9 is hoisted, the telescopic rod 35 can be retracted into the guide rail 32, and the telescopic rod 35 can be prevented from colliding and interfering with the tunnel wall or the air duct beam when the subsequent transport vehicle 1 travels on the track.

[0068] Further, refer to Figure 3 The platform door hoisting device of the present application also includes a counterweight assembly 4, which is movably arranged above the sliding beam 31, and the counterweight assembly 4 is linked with the telescopic rod 35, so that when the telescopic rod 35 moves to one side of the bracket 2 along the guide rail 32, the counterweight assembly 4 can follow the movement of the telescopic rod 35 and move to the other side of the bracket 2. In other words, the moving direction of the counterweight assembly 4 is opposite to the telescopic direction of the telescopic rod. Since the telescopic rod 35 itself has a certain weight, and the telescopic rod 35 can also be slidably provided with a moving part 33, combined with the platform door 9 hoisted under the moving part 33, the counterweight assembly 4 of this embodiment has the effect of balancing the center of gravity of the platform door hoisting device. Since the transport vehicle 1 and the bracket 2 themselves also have a certain weight, the original center is offset by the counterweight assembly 4. Even if the platform door 9 on the transport vehicle 1 is hoisted and moved to the side away from the counterweight assembly by the moving mechanism 3, the center of gravity of the platform door hoisting device can be kept in the range of the middle area, reducing the rollover risk of the transport vehicle 1 and the bracket 2.

[0069] Furthermore, refer to Figure 5 The counterweight assembly 4 includes a tensioning wheel 41, a connecting rope 42 and a counterweight 43. The tensioning wheel 41 of this embodiment is rotatably arranged on the sliding beam 31 and the guide rail 32, and the counterweight 43 is arranged in the middle of the connecting rope 42 and above the sliding beam 31. The two ends of the connecting rope 42 are respectively connected to the telescopic rod 35, and the connecting rope 42 is wound around the tensioning wheel 41 to form a ring. The connecting rope 42 can form power transmission between the counterweight 43 and the telescopic rod 35 through the tensioning wheel 41. In other words, when the telescopic rod 35 moves to one side of the bracket 2 along the guide rail 32, the connecting rope 42 on the telescopic rod 35 will be driven to roll on the tensioning wheel 41, thereby driving the counterweight assembly 4 connected by the connecting rope 42, so that the counterweight assembly 4 follows the movement of the telescopic rod 35 and moves to the other side of the bracket 2, balancing the center of gravity of the mobile mechanism 3 itself, the bracket 2 and the transport vehicle 1.

[0070] In a preferred embodiment, a guide groove is provided at the bottom of the counterweight 43, and the guide groove can accommodate the sliding beam 31, so that the counterweight 43 can be guided by the guide groove and move along the length direction of the sliding beam 31. The mutual limitation between the guide groove at the bottom of the counterweight 43 and the sliding beam 31 can improve the moving stability of the counterweight 43 when being pulled by the connecting rope 42.

[0071] Further, refer to Figure 5 and Figure 6 , a connecting groove is provided on the wall of the accommodating cylinder, and the counterweight assembly 4 in the present application further includes a synchronization block 44, through which the power between the connecting rope 42 and the telescopic rod 35 is transmitted. The synchronization block 44 has a first block 441 and a second block 442, and the first block 441 is fixedly connected to the telescopic rod 35 through the connecting groove, and the second block 442 is fixedly connected to the two ends of the connecting rope 42, so that the tension from the telescopic rod 35 is transmitted to the first block 441 through the connecting rope 42, and then transmitted to the connecting rope 42 on the second block 442 and then transmitted to the counterweight block 43. The synchronization block 44 can change the power transmission direction of the connecting rope 42 to match the telescopic rod 35 with different setting positions.

[0072] In another preferred example, the number of guide rails 32 and telescopic rods 35 in the same moving mechanism 3 is at least two, and the number of first blocks 441 is also correspondingly set to at least two. At least two telescopic rods 35 can be connected simultaneously through a synchronization block 44, so that the counterweight block 43 can be driven to move by at least two telescopic rods 35, thereby improving the movement stability of the counterweight block 43.

[0073] Optionally, refer to Figure 4 A baffle 36 is fixedly provided at the end of the telescopic rod 35, and the baffle 36 abuts against the moving part 33 to prevent the moving part 33 from derailing from the telescopic rod 35. The baffle 36 can also prevent the telescopic rod 35 from entering the guide rail 32 and being difficult to extend again, and also plays a role of limiting protection for the telescopic rod 35.

[0074] In another preferred embodiment, reference Figure 1 The number of the moving mechanisms 3 is at least two, and the platform door hoisting device further includes a connecting rod mechanism 5, and the two ends of the connecting rod mechanism 5 are respectively pivoted to the two moving parts 33. Since the connecting rod mechanism 5 can be folded to each other to achieve approach and distance, the two moving parts 33 can be connected by the limit of the connecting rod mechanism 5 when they are approaching and moving away from each other, and the moving stability can be maintained when the moving part 33 moves relative to the guide rail 32, so that the hoisting process of the platform door 9 is uniform and stable.

[0075] Preferably, reference Figure 3The link mechanism 5 includes four connecting rods 51 pivotally connected end to end in sequence to form a four-link mechanism 5, wherein a set of two opposite connecting rods 51 have pivot points pivoted to the moving part 33. When the sliding beam 31 of the moving mechanism 3 moves along the length direction of the support beam 21 to adjust the distance between two adjacent moving mechanisms 3, the two pivot points of the connecting rods 51 are pivotally connected to the moving parts 33 of the two moving mechanisms 3, and the other set of pivot points are not restricted by the moving mechanism 3 and can rotate freely, thereby ensuring the smoothness of the movement of the link mechanism 5. The two moving parts 33 can also maintain synchronous movement relative to the guide rail 32 through the limit of the link mechanism 5, further improving the movement stability of the moving part 33.

[0076] In order to further improve the movement synchronization of the moving part 33, refer to Figure 5 The bracket 2 also includes a fixed rod 22 fixedly connected to the support beam 21, and a slide groove is recessed on the fixed rod 22, so that the pivot points of the other set of two opposite connecting rods 51 are respectively pivoted in the slide groove, so that the other set of pivot points always moves along the slide groove, and the symmetrical distribution of the connecting rods 51 on both sides of the fixed rod 22 is maintained. In other words, the moving part 33 is not only limited by the guide rail 32 and the connecting rod mechanism 5, but also correspondingly bears the limit imposed on the connecting rod mechanism 5 by the slide groove of the fixed rod 22, so that the two moving parts 33 on the connecting rod mechanism 5 can move synchronously along the length direction of the guide rail 32. In this embodiment, the length direction of the fixed rod 22 is parallel to the length direction of the guide rail 32, and the connecting line of the two moving parts 33 is perpendicular to the length direction of the fixed rod 22.

[0077] More preferably, reference Figure 5 , a receiving cavity is provided in the fixed rod 22, and the above-mentioned slide groove is opened in the cavity wall of the receiving cavity, and the pivot points of the two connecting rods 51 can still move along the slide groove. In addition, the bracket 2 also includes a sliding rod 23 that is telescopically arranged in the receiving cavity, and an extension groove is recessed on the sliding rod 23. When the sliding rod 23 telescopically moves in the fixed rod 22, the pivot points of the two connecting rods 51 can also move from the slide groove to the extension groove, or from the extension groove to the slide groove, or move in the slide groove and the extension groove at the same time. When the telescopic rod 35 extends from the guide rail 32, the sliding rod 23 also extends from the fixed rod 22, so that the connecting rod mechanism 5 can also follow the movement of the moving part 33, ensuring the long-distance movement of the platform door 9.

[0078] Further, refer to Figure 2 The bracket 2 also includes a synchronization rod 24 fixedly arranged at the end of the sliding rod 23 and the end of the telescopic rod 35, so that the sliding rod 23 and the telescopic rod 35 can be extended and retracted synchronously to avoid that the difference in the extension length or retraction distance of the sliding rod 23 or the telescopic rod 35 is too large to affect the maximum moving distance of the moving part 33.

[0079] The sliding rod 23 and the telescopic rod 35 can be extended or retracted manually by manpower. Figure 5 The bracket 2 further includes a telescopic motor 25 fixedly arranged on the fixed rod 22, and the output end of the telescopic motor 25 is fixedly connected to the sliding rod 23, so that the telescopic rod 35 and the sliding rod 23 extend or retract following the output end of the telescopic motor 25. Since the telescopic motor 25 can control the telescopic amount, telescopic speed, and telescopic times according to the input signal, the telescopic synchronization of the sliding rod 23 and the telescopic rod 35 can be further improved, and the telescopic efficiency can also be improved.

[0080] Regarding the problem of dead point in the connecting rod mechanism 5, optionally, refer to Figure 4 The moving part 33 of the present application has a connecting frame 331, which is sleeved on the two connecting rods 51. The edge of the connecting frame 331 is used to limit the angle between the two connecting rods 51, thereby avoiding the dead point position between adjacent connecting rods 51 and avoiding the problem that the connecting rod mechanism 5 cannot rotate.

[0081] As for the movable arrangement of the moving part 33 relative to the guide rail 32, preferably, refer to Figure 4 The moving part 33 includes a pulley 332 and a motor 333. The pulley 332 is movably arranged on the guide rail 32, and the motor 333 is fixedly connected to the hoisting part 34. Since the motor 333 has an output shaft, the output shaft is connected to the pulley 332. When the motor 333 is started, the pulley 332 can be driven to rotate on the guide rail 32. The friction between the surface of the pulley 332 and the surface of the guide rail 32 is used to enable the moving part 33 to move along the length direction of the guide rail 32. The motor 333 can also change the speed and torque of the output shaft according to the magnitude and direction of the input current, thereby changing the moving speed of the moving part 33 relative to the guide rail 32. When the same current signal is input to the motor 333 of each moving part 33, the synchronous driving of each moving part 33 can be achieved.

[0082] Further, refer to Figure 4 The moving part 33 further includes two connecting frames 331, which are respectively arranged on both sides of the guide rail 32, and pulleys 332 are rotatably arranged on the connecting frames 331, and a motor 333 and a hanging part 34 are fixedly arranged on the connecting frames 331, which can limit the moving part 33 on the guide rail 32. At the same time, the connecting frame 331 can also serve as a connecting piece between the motor 333 and the hanging part 34, thereby improving the connection strength and structural stability between the motor 333 and the hanging part 34.

[0083] Furthermore, a moving part 33 can move on two guide rails 32 to improve the moving stability of the moving mechanism 3. Figure 4The moving part 33 further includes a transmission rod 334 and a transmission belt 335, and the two ends of the transmission rod 334 are fixedly connected to the pulleys 332 on the two connection frames 331, and the transmission belt 335 is wound around the output shaft of the motor 333 and the transmission rod 334. When the output shaft of the motor 333 starts to rotate, the power is transmitted to the transmission rod 334 through the transmission belt 335, and then the power is further transmitted to the pulley 332 by the transmission rod 334, so that multiple pulleys 332 can be driven to rotate synchronously by one motor 333. In this embodiment, the motor 333, the transmission rod 334 and the transmission belt 335 are arranged below and on both sides of the guide rail 32, which can reduce the occupied volume.

[0084] Due to the large size and weight of the platform door 9, optionally, refer to Figure 3 A reinforcement structure 37 is provided between the sliding beam 31 and the guide rail 32, which can enhance the structural strength of the sliding beam 31 and the guide rail 32, and also increase the load of the mobile mechanism 3, so as to hoist and transport more platform doors 9. In some preferred examples, the reinforcement structure 37 can be a truss, and multiple triangular frames in the truss are used to connect the sliding beam 31 and the guide rail 32, and the high stability of the triangle is also used to improve the structural stability of the mobile mechanism 3 and reduce the amount of consumables.

[0085] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0086] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0087] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0088] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the present application without creative work, and these methods will fall within the scope of protection of the present application.

Claims

1. A platform door hoisting device, characterized in that: include: A transport vehicle (1) is movably arranged on the ground or on a track; A support (2) is fixedly arranged above the transport vehicle (1), and the support (2) has a support beam (21); A moving mechanism (3) is movably arranged on the support beam (21), and the moving mechanism (3) comprises a sliding beam (31), a guide rail (32), a moving part (33) and a lifting part (34). The sliding beam (31) can move along the length direction of the support beam (21), the guide rail (32) and the sliding beam (31) are fixedly arranged, the moving part (33) is movably arranged on the guide rail (32), and the lifting part (34) is telescopically arranged at the bottom of the moving part (33). The lifting part (34) is used to lift the platform door (9) so as to lift the platform door (9) onto the transport vehicle (1), or to lift the platform door (9) and follow the moving part (33) to move along the guide rail (32) to the platform plate of the platform.

2. The platform door hoisting device according to claim 1, characterized in that: The guide rail (32) is provided with a receiving tube, the moving mechanism (3) further comprises a telescopic rod (35) telescopically arranged in the receiving tube, and the moving part (33) can move along the guide rail (32) to the telescopic rod (35).

3. The platform door hoisting device according to claim 2, characterized in that: Also includes: A counterweight assembly (4), the counterweight assembly (4) being movably arranged above the sliding beam (31), the counterweight assembly (4) being arranged in linkage with the telescopic rod (35), and the counterweight assembly (4) being arranged so that its moving direction is opposite to the telescopic direction of the telescopic rod (35).

4. The platform door hoisting device according to claim 3, characterized in that: The counterweight assembly (4) comprises a tensioning wheel (41), a connecting rope (42) and a counterweight block (43); the tensioning wheel (41) is rotatably arranged on the sliding beam (31) and the guide rail (32); the counterweight block (43) is arranged in the middle of the connecting rope (42) and is located above the sliding beam (31); both ends of the connecting rope (42) are respectively connected to the telescopic rod (35); the connecting rope (42) is wound around the tensioning wheel (41) to form a ring shape, so that when the telescopic rod (35) moves along the guide rail (32) to one side of the bracket (2), the counterweight assembly (4) follows and moves to the other side of the bracket (2).

5. The platform door hoisting device according to claim 4, characterized in that: The wall of the accommodating cylinder is provided with a connecting groove, and the counterweight assembly (4) further comprises a synchronization block (44), wherein the synchronization block (44) comprises a first block body (441) and a second block body (442), wherein the first block body (441) passes through the connecting groove and is fixedly connected to the telescopic rod (35), and the second block body (442) is fixedly connected to both ends of the connecting rope (42).

6. The platform door hoisting device according to claim 2, characterized in that: A baffle (36) is fixedly provided at the end of the telescopic rod (35), and the baffle (36) is used to abut against the moving part (33).

7. The platform door hoisting device according to claim 2, characterized in that: The number of the moving mechanisms (3) is at least two, and the platform door hoisting device further comprises: The connecting rod mechanism (5) has two ends pivotally connected to the two moving parts (33) respectively.

8. The platform door hoisting device according to claim 7, characterized in that: The connecting rod mechanism (5) comprises four connecting rods (51) pivotally connected end to end in sequence, wherein a pivot point of a group of two opposite connecting rods (51) is pivotally connected to the moving part (33).

9. The platform door hoisting device according to claim 8, characterized in that: The bracket (2) further comprises a fixing rod (22) fixedly connected to the support beam (21), a slide groove being recessed on the fixing rod (22), and the pivot points of the other two opposite connecting rods (51) are respectively pivotally connected to the slide groove.

10. The platform door hoisting device according to claim 9, characterized in that: The fixing rod (22) is provided with a receiving cavity, the sliding groove is opened in the cavity wall of the receiving cavity, the bracket (2) also includes a sliding rod (23) which is telescopically arranged in the receiving cavity, and the sliding rod (23) is recessed with an extension groove, and the pivot point of the connecting rod (51) can move in the sliding groove and / or the extension groove.

11. The platform door hoisting device according to claim 10, characterized in that: The bracket (2) also includes a synchronization rod (24) fixedly arranged at the end of the sliding rod (23) and the end of the telescopic rod (35).

12. The platform door hoisting device according to claim 10, characterized in that: The bracket (2) also includes a telescopic motor (25) fixedly arranged on the fixed rod (22), and the output end of the telescopic motor (25) is fixedly connected to the sliding rod (23), so that the telescopic rod (35) and the sliding rod (23) extend or retract following the output end of the telescopic motor (25).

13. The platform door hoisting device according to claim 8, characterized in that: The moving part (33) has a connecting frame (331), and the connecting frame (331) is sleeved on the two connecting rods (51) to limit the included angle between the two connecting rods (51).

14. The platform door hoisting device according to claim 1, characterized in that: The moving part (33) comprises: A pulley (332) movably disposed on the guide rail (32); A motor (333) is fixedly connected to the hoisting part (34); the motor (333) has an output shaft, the output shaft is connected to the pulley (332), and the motor (333) is used to drive the pulley (332) to move along the length direction of the guide rail (32).

15. The platform door hoisting device according to claim 14, characterized in that: The moving part (33) further comprises: Two connection frames (331) are respectively arranged on both sides of the guide rail (32); the pulley (332) is rotatably arranged on each of the connection frames (331); and the motor (333) and the hoisting part (34) are fixedly arranged on the connection frame (331).

16. The platform door hoisting device according to claim 15, characterized in that: The moving part (33) further comprises: A transmission rod (334), both ends of which are fixedly connected to the pulleys (332) on the two connection frames (331); A transmission belt (335) is wound around the output shaft of the motor (333) and the transmission rod (334).

17. The platform door hoisting device according to any one of claims 1 to 16, characterized in that: A reinforcement structure (37) is provided between the sliding beam (31) and the guide rail (32).

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