Operation platform car facilitating installation and overhaul of rear sealing plate and sealing strip of platform door

Abstract

The utility model relates to the technical field of subway platform construction, and provides an operation platform car convenient for installation and maintenance of a rear sealing plate and a sealing strip of a platform door, which comprises a plate trailer (1), a shear fork lifting platform (2) is installed on the plate trailer (1), a flat plate (3) is fixedly connected on the shear fork lifting platform (2), and a protective frame (4) is fixedly connected on the flat plate (3). Extension mechanisms (5) are arranged on the two sides of the end, close to the rail running area, of the protection frame (4), supporting mechanisms (6) are arranged at the lower ends of the extension mechanisms (5), each extension mechanism (5) comprises a plurality of first square pipes (51) sliding on the protection frame (4), the ends, away from the protection frame (4), of the first square pipes (51) are fixedly connected with a movable frame (52), and pedals (53) are rotationally connected to the protection frame (4). The platform door can be conveniently constructed and overhauled, and the platform door can extend towards the two sides, so that the construction operation range is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of subway platform construction, and more specifically, to a working platform vehicle which is convenient for installing and maintaining the rear seal plate and sealing strip of a platform door. Background Art

[0002] The development of subway transportation has greatly alleviated the pressure of urban traffic, and subway transportation has also attracted more passengers due to its convenience. On the outside of the subway platform is a roaring subway train, and on the inside are passengers in a hurry. Therefore, people have put forward higher requirements for the safety of subway transportation. The platform door of the subway station is installed at the edge of the subway platform, separating the track area and the platform area, and is provided with sliding doors corresponding to the train doors and capable of multi-level controlled opening and closing. The platform doors form a continuous protective barrier, ensuring the safety of passengers.

[0003] During the installation and maintenance of the platform door or the sealing strip, since the rear seal plate and the sealing strip of the platform door are in the track area of the tunnel, it is inconvenient to build a scaffolding for maintenance, which is time-consuming and laborious; in the prior art, after building a scaffolding in the track area, it is also inconvenient to extend to both sides, thus increasing the construction operation range. Summary of the Utility Model

[0004] The utility model aims to overcome the above situations and provides a working platform vehicle which is convenient for installing and maintaining the rear seal plate and sealing strip of a platform door, can conveniently construct and maintain the platform door, and can extend to both sides, thereby increasing the construction operation range.

[0005] A working platform vehicle which is convenient for installing and maintaining the rear seal plate and sealing strip of a platform door includes a flatbed truck, a scissor lift platform is installed on the flatbed truck, a flat plate is fixedly connected to the scissor lift platform, a protective frame is fixedly connected to the flat plate, extension mechanisms are arranged on both sides of one end of the protective frame close to the track area, a support mechanism is arranged at the lower end of the extension mechanism, the extension mechanism includes a first square tube sliding on the protective frame, a plurality of the first square tubes are provided and one ends far from the protective frame are fixedly connected to a moving frame, a pedal is rotatably connected to the protective frame, a support rod is fixedly connected to the moving frame, and a card slot adapted to the support rod is formed on one side of the pedal where it rotates close to the support rod.

[0006] Further, the extension mechanism further includes a second square tube fixedly connected to the moving frame, the second square tube penetrates and slides on the protective frame, and a magnetic block is fixedly connected to one side of the second square tube far from the moving frame.

[0007] Further, the cross-sectional area of the magnetic block is larger than the cross-sectional area of the second square tube.

[0008] Further, the magnetic poles of the two magnetic blocks on the sides close to each other in the two extension mechanisms are opposite.

[0009] Furthermore, a stop bar is fixedly connected inside the moving frame, and the stop bar is adapted to the card slot.

[0010] Furthermore, a retracting and extending mechanism is arranged between the protective frame and the pedal. The retracting and extending mechanism includes a mounting plate fixedly connected to the protective frame. A rotating rod is rotatably connected to the mounting plate. Two wire winding wheels are fixedly connected to the rotating rod. A pulling rope is wound around the wire winding wheel. A first collar is fixedly connected to the pedal, and the free end of the pulling rope is fixedly connected to the first collar.

[0011] Furthermore, a second collar is fixedly connected to the protective frame, and the pulling rope passes through the second collar.

[0012] Furthermore, the protective frame, the extending mechanism and the supporting mechanism are all made of stainless steel.

[0013] Furthermore, the supporting mechanism includes a fixing frame fixedly connected to the lower end of the protective frame. A servo motor is installed at the lower end of the fixing frame. The output end of the servo motor is fixedly connected to a threaded rod. A mounting frame slides on the fixing frame. The threaded rod penetrates through and is threadedly connected to the mounting frame. A roller is arranged at the lower end of the mounting frame.

[0014] Furthermore, sliding grooves are formed on both sides of the fixing frame, and the mounting frame slides in the sliding grooves.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, construction workers move onto the flat plate. Under the protection of the protective frame, another construction worker moves the flatbed cart, so that the protective frame enters the range of the track area. Through the lifting of the scissor lift platform, the construction height is adjusted, so that the construction workers on the flat plate can install and repair the rear sealing plate or sealing strip of the platform door. Extension mechanisms are arranged on both sides of one end of the protective frame close to the track area. The two extension mechanisms can extend to both sides, thereby increasing the construction operation range of the construction workers. A support mechanism is arranged at the lower end of the extension mechanism. The support mechanism provides a certain support for the extended working platform and reduces the probability of tipping over. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is an overall structural schematic diagram of a working platform cart convenient for installing and repairing the rear sealing plate and sealing strip of a platform door Figure 1 ;

[0019] Figure 2 It is a schematic diagram when the working platform vehicle is unfolded;

[0020] Figure 3 It is a schematic diagram when the working platform vehicle is retracted;

[0021] Figure 4 It is a schematic diagram of the extension mechanism and the support mechanism;

[0022] Figure 5 It is a schematic diagram of the protective frame;

[0023] Figure 6 It is a schematic diagram at the retracting and extending mechanism.

[0024] In the figure: 1, flatbed truck; 2, scissor lift platform; 3, flat plate; 4, protective frame; 5, extension mechanism; 51, first square pipe; 52, moving frame; 53, pedal; 531, card slot; 54, support rod; 55, second square pipe; 56, magnetic block; 57, stop bar; 6, support mechanism; 61, fixed frame; 611, sliding groove; 62, servo motor; 63, threaded rod; 64, mounting frame; 65, roller; 7, retracting and extending mechanism; 71, mounting plate; 72, rotating rod; 73, winding wheel; 74, pulling rope; 75, first collar; 76, second collar. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Specific embodiments:

[0027] Such as Figures 1-6As shown in the figure, a working platform vehicle for facilitating the installation and maintenance of the rear seal plate and sealing strip of the platform screen door includes a flatbed truck 1. A scissor lift platform 2 is installed on the flatbed truck 1. The scissor lift platform 2 is commercially available, and its model can be SJY0.3-4m, but it is not limited to this. A flat plate 3 is fixedly connected to the scissor lift platform 2, and a protective frame 4 is fixedly connected to the flat plate 3. Construction workers move onto the flat plate 3. Under the protection of the protective frame 4, another construction worker moves the flatbed truck 1 so that the protective frame 4 enters the range of the track area. Through the lifting of the scissor lift platform 2, the construction height can be adjusted, so that the construction workers on the flat plate 3 can install and maintain the rear seal plate or sealing strip of the platform screen door; on both sides of one end of the protective frame 4 close to the track area, there are extension mechanisms 5. The two extension mechanisms 5 can extend to both sides, thereby increasing the construction operation range of the construction workers. A support mechanism 6 is arranged at the lower end of the extension mechanism 5. The support mechanism 6 provides a certain support for the extended working platform and reduces the probability of tipping over.

[0028] As Figures 1-6 shown in the figure, the extension mechanism 5 includes first square tubes 51 that slide on the protective frame 4. There are multiple first square tubes 51. In this embodiment, there are two. Both ends of the two first square tubes 51 away from the protective frame 4 are fixedly connected to a moving frame 52. A pedal 53 is rotatably connected to the protective frame 4. A support rod 54 is fixedly connected inside the moving frame 52. A card slot 531 adapted to the support rod 54 is provided on one side of the pedal 53 that rotates close to the support rod 54. When the moving frame 52 is pushed away from the protective frame 4 and the pedal 53 rotates close to the support rod 54 so that the support rod 54 is just clamped in the card slot 531, the construction of the pedal 53 is completed, thereby extending the range of the working platform and increasing the construction operation range.

[0029] As Figures 1-6 shown in the figure, the extension mechanism 5 further includes a second square tube 55 fixedly connected to one side of the moving frame 52 close to the protective frame 4. The end of the second square tube 55 away from the moving frame 52 penetrates and slides on the protective frame 4. A magnetic block 56 is also fixedly connected to the end of the second square tube 55 away from the moving frame 52. The cross-sectional area of the magnetic block 56 is larger than the cross-sectional area of the second square tube 55, and the magnetic poles of the two magnetic blocks 56 on the sides close to each other in the two extension mechanisms 5 are opposite. A stop rod 57 adapted to the card slot 531 is also fixedly connected inside the moving frame 52 above the support rod 54. When the pedal 53 rotates close to the protective frame 4 until it is perpendicular to the flat plate 3, the two magnetic blocks 56 are pulled close to each other and attracted, so that the second square tube 55 drives the moving frame 52 to move close to the protective frame 4. When the two magnetic blocks 56 contact, the stop rod 57 is just clamped in the card slot 531 to complete the retraction of the extension mechanism 5.

[0030] As Figures 1-6As shown, a retracting mechanism 7 is provided between the protective frame 4 and the pedal 53. The retracting mechanism 7 is used to retract and flatten the pedal 53. The retracting mechanism 7 is located between the two extension mechanisms 5. The retracting mechanism 7 includes a mounting plate 71 fixedly connected to the protective frame 4. A rotating rod 72 is rotatably connected to the mounting plate 71. A rotating handle is provided at the free end of the rotating rod 72. Two wire winding wheels 73 are fixedly connected to the rotating rod 72. A pulling rope 74 is wound around the wire winding wheel 73. A first collar 75 is fixedly connected to the pedal 53. A second collar 76 is fixedly connected to the protective frame 4 on the same horizontal plane as the wire winding wheel 73. The free end of the pulling rope 74 passes through the second collar 76 and is fixedly connected to the first collar 75. The two pulling ropes 74 are wound around different wire winding wheels 73 and in opposite winding directions. Before lowering the pedal 53, hold the rotating handle to prevent the wire winding wheel 73 from rotating. Separate the two magnetic blocks 56 and push the moving frame 52 until the magnetic blocks 56 are in contact with the protective frame 4. At this time, release the rotating handle or rotate the rotating handle to make the wire winding wheel 73 rotate, so that the pulling rope 74 is released, thereby making the pedal 53 rotate close to the support rod 54 and making the support rod 54 engage with the card slot 531 to complete the lowering of the pedal 53. If it is necessary to retract the pedal 53, rotate the rotating handle to make the wire winding wheel 73 rotate, wind up the pulling rope 74, pull the pedal 53 to rotate close to the protective frame 4, and then pull the two magnetic blocks 56 close to each other and attract each other to make the blocking rod 57 engage with the card slot 531, thus completing the retraction of the pedal 53.

[0031] As Figures 1-6 shown, the protective frame 4, the extension mechanism 5 and the support mechanism 6 are all made of stainless steel.

[0032] As Figures 1-6 shown, the support mechanism 6 includes a fixed frame 61 fixedly connected to the lower end of the protective frame 4. A servo motor 62 is installed at the lower end of the fixed frame 61. The output end of the servo motor 62 is fixedly connected to a threaded rod 63. A mounting frame 64 slides on the fixed frame 61. The threaded rod 63 passes through and is threadedly connected to the mounting frame 64. A roller 65 is provided at the lower end of the mounting frame 64. Slide grooves 611 are formed on both sides of the fixed frame 61. The mounting frame 64 slides in the slide grooves 611. By rotating the threaded rod 63 through the output of the servo motor 62, the mounting frame 64 can move vertically under the restriction of the slide grooves 611 until the roller 65 contacts the ground of the track area, playing a certain supporting role for the extension mechanism 5 and also making the working platform vehicle more stable when moving horizontally. When the mounting frame 64 moves upward to the highest point, the roller 65 is just level with the moving wheels of the flatbed truck 1.

[0033] The servo motor 62 is electrically connected to an external power supply and is also electrically connected to a control unit (not shown in the figure).

[0034] The working principle of a working platform vehicle facilitating the installation and maintenance of the rear seal plate and sealing strip of a platform door in this embodiment is as follows: During use, push the flatbed cart 1 to the platform door, push the extension mechanism 5 into the track area space, hold the turning handle to prevent the wire winding wheel 73 from rotating, separate the two magnetic blocks 56, and push the moving frame 52 until the magnetic block 56 fits against the protective frame 4. At this time, release the turning handle or rotate the turning handle to make the wire winding wheel 73 rotate, so that the pulling rope 74 is released, thereby making the pedal 53 rotate closer to the support rod 54 and making the support rod 54 engage with the card slot 531, completing the lowering of the pedal 53, thus increasing the construction operation range. Then, lift the scissor lift platform 2 to an appropriate height, and then through the output of the servo motor 62, make the rollers 65 provided at the lower end of the mounting frame 64 contact the ground in the track area, playing a certain supporting role for the extension mechanism 5 and also making the working platform vehicle more stable during lateral movement, thereby facilitating the installation and maintenance of the rear seal plate or sealing strip of the platform door.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A work platform vehicle that is convenient for installing and repairing the rear sealing plate and sealing strip of the platform door, characterized in that: The invention comprises a cart (1), a scissor lift platform (2) is installed on the cart (1), a flat plate (3) is fixedly connected to the scissor lift platform (2), a protective frame (4) is fixedly connected to the flat plate (3), an extension mechanism (5) is arranged on both sides of the end of the protective frame (4) close to the track area, a support mechanism (6) is arranged at the lower end of the extension mechanism (5), the extension mechanism (5) comprises a first square tube (51) sliding on the protective frame (4), a plurality of the first square tubes (51) are arranged and the ends away from the protective frame (4) are fixedly connected to a movable frame (52), a pedal (53) is rotatably connected to the protective frame (4), a support rod (54) is fixedly connected inside the movable frame (52), and a slot (531) adapted to the support rod (54) is provided on the side of the pedal (53) rotating close to the support rod (54).

2. According to claim 1, a work platform vehicle that is convenient for installing and repairing the rear sealing plate and sealing strip of the platform door is characterized by: The extension mechanism (5) further comprises a second square tube (55) fixedly connected to the movable frame (52), the second square tube (55) passing through and sliding on the protective frame (4), and a magnetic block (56) is fixedly connected to a side of the second square tube (55) away from the movable frame (52).

3. The work platform vehicle for facilitating installation and maintenance of rear sealing plates and sealing strips of platform doors according to claim 2, characterized in that: The cross-sectional area of ​​the magnetic block (56) is greater than the cross-sectional area of ​​the second square tube (55).

4. The work platform vehicle for facilitating installation and maintenance of rear sealing plates and sealing strips of platform doors according to claim 2, characterized in that: The magnetic poles of the two magnetic blocks (56) in the two extension mechanisms (5) are opposite on the sides close to each other.

5. The work platform vehicle for facilitating installation and maintenance of rear sealing plates and sealing strips of platform doors according to claim 4, characterized in that: A blocking rod (57) is fixedly connected inside the movable frame (52), and the blocking rod (57) is adapted to the clamping slot (531).

6. The work platform vehicle for facilitating installation and maintenance of rear sealing plates and sealing strips of platform doors according to claim 1, characterized in that: A retractable mechanism (7) is provided between the protective frame (4) and the pedal (53), the retractable mechanism (7) comprising a mounting plate (71) fixedly connected to the protective frame (4), a rotating rod (72) rotatably connected to the mounting plate (71), two winding wheels (73) fixedly connected to the rotating rod (72), a pull rope (74) wound around the winding wheel (73), a first ring (75) fixedly connected to the pedal (53), and a free end of the pull rope (74) fixedly connected to the first ring (75).

7. The work platform vehicle for facilitating installation and maintenance of rear sealing plates and sealing strips of platform doors according to claim 6, characterized in that: A second ring (76) is fixedly connected to the protective frame (4), and the pull rope (74) passes through the second ring (76).

8. The work platform vehicle for facilitating installation and maintenance of rear sealing plates and sealing strips of platform doors according to claim 1, characterized in that: The protective frame (4), the extension mechanism (5) and the support mechanism (6) are all made of stainless steel.

9. The work platform vehicle for facilitating installation and maintenance of rear sealing plates and sealing strips of platform doors according to claim 1, characterized in that: The support mechanism (6) comprises a fixing frame (61) fixedly connected to the lower end of the protection frame (4); a servo motor (62) is installed at the lower end of the fixing frame (61); a threaded rod (63) is fixedly connected to the output end of the servo motor (62); a mounting frame (64) is slidably mounted on the fixing frame (61); the threaded rod (63) passes through and is threadedly connected to the mounting frame (64); and a roller (65) is arranged at the lower end of the mounting frame (64).

10. The work platform vehicle for facilitating installation and maintenance of rear sealing plates and sealing strips of platform doors according to claim 9, characterized in that: Slide grooves (611) are provided on both sides of the fixing frame (61), and the mounting frame (64) slides in the slide grooves (611).

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