Subway vehicle door dismounting and mounting mechanism

Abstract

The utility model relates to the technical field of metro maintenance, in particular to a metro door dismounting mechanism which comprises a plate trailer, a first electric telescopic rod fixedly connected to the right side of the top of the plate trailer, a mechanical arm fixedly connected to the output end of the first electric telescopic rod, and a battery bin fixedly connected to the middle of the top of the plate trailer. A second electric telescopic rod is fixedly connected to the left side of the top of the plate trailer, a fixing plate is fixedly connected to the output end of the second electric telescopic rod, and a hollow shell is fixedly connected to the top of the fixing plate. Through design cooperation of the hydraulic impact rod and the hammer body, the device can knock a subway vehicle door which is used for a long time and is bent, the hammer body impacts the vehicle door to correct the shape of the vehicle door, subsequent operators can conveniently disassemble and replace the corrected vehicle door, meanwhile, a hook strip capable of transversely sliding is arranged at the bottom of the hydraulic impact rod, and therefore the vehicle door can be conveniently disassembled and replaced. And the hook strip can hook the vehicle door to help to stabilize the position of the vehicle door in the impact process and prevent the vehicle door from shifting or rotating due to impact force.

Description

Technical Field

[0001] The utility model relates to the technical field of subway maintenance, in particular to a subway door disassembly and assembly mechanism. Background Art

[0002] The subway door is an important part of the subway vehicle, and its main function is to allow passengers to enter and exit safely and conveniently between the station and the subway car;

[0003] It is found that the publication (announcement) number: CN215475455 discloses a subway door disassembly and assembly mechanism. In this technology, "a subway door disassembly and assembly mechanism is disclosed, belonging to the technical field of subway maintenance equipment. Aiming at the problems that the disassembly and assembly of subway vehicle doors mainly rely on manual labor in the prior art, lack of automation equipment, high labor intensity of workers and low operation efficiency, it includes a self-propelled trolley, a fixed frame fixedly arranged on the self-propelled trolley, and a bracket movably connected to the fixed frame. The bracket is a rectangular box structure, and a double clamping structure for positioning the door is fixedly arranged at one end of the bracket. A clamping structure for fixing the bottom of the door is arranged at the other end of the bracket. One end of the bracket is rotatably connected to the fixed frame in a hinge manner, and a turning mechanism is also arranged between the bracket and the support frame. The turning mechanism rotates the bracket counterclockwise around the hinge axis by 0-90°. The turning mechanism includes a screw drive mechanism and a multi-link hinge structure, aiming to reduce labor intensity and improve production efficiency."

[0004] When the existing subway door disassembly and assembly mechanism is in use, subway doors that need to be disassembled and assembled in different situations will be encountered. Among them, it is more common that the interface between the subway door and the subway car body may be worn or deformed due to long-term use. The deformation of the door may not only cause changes in the original disassembly interfaces and fixing points, making the standard disassembly tools and methods no longer applicable, increasing the difficulty of disassembly, but also the deformed door may be unstable during the disassembly process, increasing the risk of the operator being pinched or the door suddenly falling off. Both will lead to an increase in the disassembly difficulty, and the time required to complete the door disassembly will also be correspondingly extended, which may affect the normal operation and maintenance plan of the subway.

[0005] To solve the above problems, a subway door disassembly and assembly mechanism is proposed in this application. Content of the Utility Model

[0006] To solve the problems raised in the above background art. The utility model provides a subway door disassembly and assembly mechanism, which can knock and straighten the deformed door, and has the characteristic of fixing the flatbed truck equipped with the hydraulic impact rod to the ground.

[0007] To achieve the above object, the utility model adopts the following technical scheme: A subway door disassembly and assembly mechanism, including a flatbed truck, on the top right side of the flatbed truck is fixedly connected with a first electric telescopic rod, the output end of the first electric telescopic rod is fixedly connected with a robotic arm, in the middle of the top of the flatbed truck is fixedly connected with a battery compartment, on the top left side of the flatbed truck is fixedly connected with a second electric telescopic rod, the output end of the second electric telescopic rod is fixedly connected with a fixing plate, on the top of the fixing plate is fixedly connected with a hollow shell, at the top end of the hollow shell is fixedly connected with a mounting plate, on the top of the mounting plate is fixedly connected with a hydraulic impact rod, the output end of the hydraulic impact rod is fixedly connected with a hammer body, on the outer end face of the hollow shell is fixedly connected with a motor, the output end of the motor is fixedly connected with a threaded rod, and a moving block is spirally connected to the outside of the threaded rod, and a hook strip is fixedly connected to the left end face of the moving block.

[0008] As an optimization of the subway door disassembly and assembly mechanism of the utility model, one end of the threaded rod away from the motor is rotationally connected to the middle of the inner side of the hollow shell, and the middle of the left side inside the hollow shell is slidably connected to the outside of the right side of the hook strip, which can knock on the subway door that has been used for a long time and becomes bent, so that the hammer body impacts the door to correct its shape, facilitating subsequent operators to disassemble and replace the corrected door.

[0009] As an optimization of the subway door disassembly and assembly mechanism of the utility model, the battery compartment supplies power to the first electric telescopic rod, the robotic arm, the second electric telescopic rod, the motor and the hydraulic impact rod. The number of the hollow shells is two, and the hollow shells are distributed on the front and back sides of the top of the fixing plate. The number of the motor and its associated structure and the number of the hydraulic impact rod and its associated structure are the same as the number of the hollow shells. Generally, a subway is provided with two doors to keep passengers unobstructed when getting on and off. The two groups of hook strips on the left end face of the hollow shell are also set based on doors in different directions. At the same time, the hydraulic impact rods can be controlled to start simultaneously, which can improve the efficiency of the hydraulic impact rods in correcting the deformation of the door to a certain extent.

[0010] As an optimization of the subway door disassembly and assembly mechanism of the utility model, a through groove from front to back is opened in the middle of the left side inside the hollow shell, and the width of the through groove in the middle of the left side inside the hollow shell matches the up and down length of the longitudinal section of the hook strip. The overall shape of the hook strip is L-shaped. The hook strip can not only hook the door to help stabilize the position of the door during the impact process and prevent the door from shifting or rotating due to the impact force, but also guide the deformation direction of the door through the reverse pulling force of the hook strip, so that it can be corrected along the expected path.

[0011] Preferably, as a subway door disassembly and assembly mechanism of the present utility model, the hammer body at the output end of the hydraulic impact rod is cylindrical, and a rubber buffer layer with a thickness of 5 mm is provided on the outer surface of the left end of the hammer body, which can protect the hammer body at the output end of the hydraulic impact rod and prevent the impact force of the hydraulic impact rod driving the hammer body from being too large, resulting in the deformation of the door connection by the impact of the hammer body and increasing the disassembly difficulty.

[0012] Preferably, as a subway door disassembly and assembly mechanism of the present utility model, a bottom plate is fixedly connected to the middle of the bottom of the flatbed truck, an electric push rod is fixedly connected above the inner side of the bottom plate, a vacuum suction cup is fixedly connected to the output end of the electric push rod, and the battery compartment is electrically connected to the electric push rod and the vacuum suction cup. After the flatbed truck moves to the set position, the vacuum suction cup is pushed downward by the electric push rod and directly contacts the ground, fixing the flatbed truck to the ground, which can effectively prevent the flatbed truck from displacing due to the reaction force generated when the hydraulic impact rod impacts the subway door.

[0013] Preferably, as a subway door disassembly and assembly mechanism of the present utility model, the number of the electric push rods and the vacuum suction cups is several, and the electric push rods and the vacuum suction cups are evenly arranged from left to right on the inner side of the bottom plate, which is consistent with the moving direction of the hydraulic impact rod driving the hammer body, avoiding the situation of the flatbed truck tipping over.

[0014] The present utility model has the following beneficial effects:

[0015] The subway door disassembly and assembly mechanism designed by the present utility model, through the design cooperation of the hydraulic impact rod and the hammer body, enables the device to strike the subway door that has been bent after long-term use, allowing the hammer body to impact the door to correct its shape, facilitating subsequent operators to disassemble and replace the corrected door. At the same time, a hook strip that can slide horizontally is provided at the bottom of the hydraulic impact rod. The hook strip can not only hook the door to help stabilize the position of the door during the impact process and prevent the door from shifting or rotating due to the impact force, but also, through the reverse pulling force of the hook strip, guide the deformation direction of the door so that it is corrected along the expected path, improving the efficiency and safety of the hydraulic impact rod in correcting the deformation of the door to a certain extent.

[0016] The subway door disassembly and assembly mechanism designed by the present utility model, through the design cooperation of the electric push rod and the vacuum suction cup, enables the device to, after the flatbed truck moves to the set position, push the vacuum suction cup downward by the electric push rod and directly contact the ground, fixing the flatbed truck to the ground, which can effectively prevent the flatbed truck from displacing due to the reaction force generated when the hydraulic impact rod impacts the subway door, improving the stability of the flatbed truck driving the hydraulic impact rod to operate to a certain extent. Description of the Drawings

[0017] The accompanying drawings are used to provide a further understanding of the present utility model and form a part of the description. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the accompanying drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the hollow shell of the present utility model rotated 90 degrees horizontally;

[0020] Figure 3 is a schematic diagram of the longitudinal sectional structure of the hollow shell of the present utility model after being rotated 90 degrees horizontally;

[0021] Figure 4 is a schematic three-dimensional structure diagram of the flatbed cart of the present utility model longitudinally flipped 180 degrees.

[0022] Legend description:

[0023] 1. Flatbed cart; 2. First electric telescopic rod; 3. Manipulator; 4. Battery compartment; 5. Second electric telescopic rod; 6. Fixed plate; 7. Hollow shell; 8. Motor; 9. Hook bar; 10. Mounting plate; 11. Hydraulic impact rod; 12. Hammer body; 13. Threaded rod; 14. Moving block; 15. Bottom plate; 16. Electric push rod; 17. Vacuum suction cup. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1

[0026] As Figures 1 to 4 shown;

[0027] A subway door disassembly and assembly mechanism includes a flatbed cart 1.

[0028] In this embodiment: After checking, the publication (announcement) number: CN215475455 discloses a subway door disassembly and assembly mechanism. To solve the existing problems in this prior art, as disclosed in the above background art, "When the existing subway door disassembly and assembly mechanism is in use, subway doors that need to be disassembled and assembled in different situations will be encountered. Among them, it is more common that the interface between the subway door and the subway car body may be worn or deformed due to long-term use. The deformation of the door may not only cause changes in the original disassembly interfaces and fixing points, making the standard disassembly tools and methods no longer applicable, increasing the difficulty of disassembly, but also the deformed door may be unstable during the disassembly process, increasing the risk of the operator being pinched or the door suddenly falling off. Both will lead to an increase in the disassembly difficulty, and the time required to complete the door disassembly will also be correspondingly extended, which may affect the normal operation and maintenance plan of the subway." In combination with the use, this problem is obviously an existing and difficult-to-solve problem. In view of this, to solve this technical problem, a hydraulic impact rod 11 and a hook bar 9 are added to this application document;

[0029] Furthermore:

[0030] As Figures 1 to 4 shown:

[0031] Combining the above content: A subway door disassembly and assembly mechanism includes a flatbed truck 1. The right side of the top of the flatbed truck 1 is fixed with a first electric telescopic rod 2 by bolts. The output end of the first electric telescopic rod 2 is provided with a robotic arm 3. The middle of the top of the flatbed truck 1 is fixed with a battery compartment 4 by bolts. The left side of the top of the flatbed truck 1 is fixed with a second electric telescopic rod 5 by bolts. The output end of the second electric telescopic rod 5 is provided with a fixing plate 6. The top of the fixing plate 6 is welded with a hollow shell 7. The top of the hollow shell 7 is fixed with a mounting plate 10 by bolts. A hydraulic impact rod 11 is arranged on the top of the mounting plate 10. The output end of the hydraulic impact rod 11 is welded with a hammer body 12. The outer end face of the hollow shell 7 is fixed with a motor 8 by bolts. The output shaft of the output end of the motor 8 penetrates through the inside of a threaded rod 13 and is welded and fixed. The outside of the threaded rod 13 penetrates through the inside of a moving block 14 and is spirally engaged with the internal thread of the moving block 14. The left end face of the moving block 14 is welded with a hook bar 9. One end of the threaded rod 13 away from the motor 8 is rotatably connected to the middle of the inner side of the hollow shell 7. The middle of the left side inside the hollow shell 7 is slidably connected to the outer side of the right side of the hook bar 9.

[0032] In this embodiment: The subway door that has been used for a long time and has become bent can be knocked, and the hammer body 12 impacts the door to correct its shape, which is convenient for subsequent operators to disassemble and replace the corrected door.

[0033] In an alternative embodiment: The battery compartment 4 supplies power to the first electric telescopic rod 2, the robotic arm 3, the second electric telescopic rod 5, the motor 8, and the hydraulic impact rod 11. The number of the hollow shells 7 is two, and the hollow shells 7 are distributed on the front and rear sides of the top of the fixed plate 6. The number of the motor 8 and its associated structure and the number of the hydraulic impact rod 11 and its associated structure are the same as the number of the hollow shells 7.

[0034] In this embodiment: Generally, two doors are provided on the subway to keep the passengers unobstructed when getting on and off. The two sets of hook strips 9 on the left end face of the hollow shell 7 are also provided based on the doors in different directions. At the same time, the hydraulic impact rods 11 can be controlled to start simultaneously, which can improve the efficiency of the hydraulic impact rods 11 in correcting the deformation of the doors to a certain extent.

[0035] In an alternative embodiment: A through groove extending from front to back is formed in the middle of the left side inside the hollow shell 7, and the width of the through groove in the middle of the left side inside the hollow shell 7 matches the vertical length of the longitudinal section of the hook strip 9. The overall shape of the hook strip 9 is L-shaped.

[0036] In this embodiment: The hook strip 9 can not only hook the door to help stabilize the position of the door during the impact process and prevent the door from shifting or rotating due to the impact force, but also guide the deformation direction of the door through the reverse pulling force of the hook strip 9, so that it can be corrected along the expected path.

[0037] In an alternative embodiment: The hammer body 12 at the output end of the hydraulic impact rod 11 is cylindrical in shape, and a rubber buffer layer with a thickness of 5 mm is provided on the outer surface of the left end of the hammer body 12.

[0038] In this embodiment: The hammer body 12 at the output end of the hydraulic impact rod 11 can be protected to prevent the hydraulic impact rod 11 from driving the hammer body 12 to have too large an impact force, resulting in the deformation of the connection part of the door by the hammer body 12 and increasing the disassembly difficulty.

[0039] According to the above content, in order to fix the flatbed truck 1 equipped with the hydraulic impact rod 11 to the ground, a bottom plate 15 is further welded to the middle of the bottom of the flatbed truck 1. An electric push rod 16 is fixed above the inner side of the bottom plate 15 by bolts. A vacuum suction cup 17 is arranged at the output end of the electric push rod 16. The battery compartment 4 is electrically connected to the electric push rod 16 and the vacuum suction cup 17.

[0040] In this implementation scheme: After the flatbed truck 1 moves to the set position, the vacuum suction cup 17 is pushed downward by the electric push rod 16 and directly contacts the ground, so that the flatbed truck 1 is fixed to the ground, which can effectively prevent the flatbed truck 1 from shifting due to the reaction force generated when the hydraulic impact rod 11 impacts the subway door.

[0041] In an alternative embodiment: The number of the electric push rods 16 and the vacuum suction cups 17 is several, and the electric push rods 16 and the vacuum suction cups 17 are evenly arranged from left to right on the inner side of the bottom plate 15.

[0042] In this embodiment: It is consistent with the direction in which the hydraulic impact rod 11 drives the hammer body 12 to move, avoiding the situation of the flatbed truck 1 tipping over.

[0043] The working principle and usage process of the present utility model: Before use, charge the battery compartment 4. When in use, push the flatbed truck 1 to the set area, and insert the hook strip 9 into the inner side of the subway door. When the positions where the two hook strips 9 are bent forward and backward are behind the subway door, first turn on the electric push rod 16 inside the bottom plate 15 under the flatbed truck 1. The electric push rod 16 drives the vacuum suction cup 17 at the output end to contact the ground. Then turn on the vacuum suction cup 17. The negative pressure generated by the vacuum suction cup 17 fixes the flatbed truck 1 to the ground. Then start the second electric telescopic rod 5. The second electric telescopic rod 5 drives the fixed plate 6 at the output end to move to the position where it needs to be straightened and then stops. Turn on the motor 8. The motor 8 drives the threaded rod 13 at the output end to rotate. At this time, the moving block 14 in the hollow shell 7 starts to move following the rotation of the threaded rod 13 until the moving block 14 drives the hook strip 9 to move to the edge of the door and then stops. Turn on the hydraulic impact rod 11 on the top of the mounting plate 10 above the hollow shell 7. The hydraulic impact rod 11 drives the hammer body 12 to strike the door, allowing the hammer body 12 to impact the door to correct its shape. After the correction is completed, the door can be disassembled. Turn off the vacuum suction cup 17 and the electric push rod 16 under the flatbed truck 1, and let the flatbed truck 1 rotate 180 degrees in place, so that the output end of the robotic arm 3 is aligned with the door. The first electric telescopic rod 2 drives the robotic arm 3 to move to the center of the door. Then start the robotic arm 3 to clamp and fix the door, and the door is driven by the robotic arm 3 to separate from the carriage.

[0044] Finally, it should be noted that: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model 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 utility model shall be included within the protection scope of the present utility model.

Claims

1. A subway door disassembly and assembly mechanism, including a flatbed truck (1), characterized in that: On the right side of the top of the flatbed cart (1), a first electric telescopic rod (2) is fixedly connected. The output end of the first electric telescopic rod (2) is fixedly connected with a robotic arm (3). In the middle of the top of the flatbed cart (1), a battery compartment (4) is fixedly connected. On the left side of the top of the flatbed cart (1), a second electric telescopic rod (5) is fixedly connected. The output end of the second electric telescopic rod (5) is fixedly connected with a fixing plate (6). On the top of the fixing plate (6), a hollow shell (7) is fixedly connected. At the top end of the hollow shell (7), a mounting plate (10) is fixedly connected. On the top of the mounting plate (10), a hydraulic impact rod (11) is fixedly connected. The output end of the hydraulic impact rod (11) is fixedly connected with a hammer body (12). On the outer end face of the hollow shell (7), a motor (8) is fixedly connected. The output end of the motor (8) is fixedly connected with a threaded rod (13). A moving block (14) is spirally connected to the outside of the threaded rod (13). On the left end face of the moving block (14), a hook strip (9) is fixedly connected.

2. The subway door disassembly and assembly mechanism according to claim 1, characterized in that: One end of the threaded rod (13) away from the motor (8) is rotatably connected to the middle of the inner side of the hollow shell (7). The middle of the left side inside the hollow shell (7) is slidably connected to the outside of the right side of the hook strip (9).

3. The subway car door disassembly and assembly mechanism according to claim 1, characterized in that: The battery compartment (4) supplies power to the first electric telescopic rod (2), the robotic arm (3), the second electric telescopic rod (5), the motor (8), and the hydraulic impact rod (11). The number of the hollow shells (7) is two, and the hollow shells (7) are distributed on the front and back sides of the top of the fixing plate (6). The number of the motor (8) and its associated structures, and the hydraulic impact rod (11) and its associated structures are the same as the number of the hollow shells (7).

4. The subway door disassembly and assembly mechanism according to claim 1, characterized in that: A through groove from front to back is opened in the middle of the left side inside the hollow shell (7), and the width of the through groove in the middle of the left side inside the hollow shell (7) matches the up and down length of the longitudinal section of the hook strip (9). The overall shape of the hook strip (9) is L-shaped.

5. The subway door disassembly and assembly mechanism according to claim 1, characterized in that: The hammer body (12) at the output end of the hydraulic impact rod (11) is cylindrical in shape, and a rubber buffer layer with a thickness of five millimeters is provided on the outer surface of the left end of the hammer body (12).

6. The subway car door disassembly and assembly mechanism according to claim 1, characterized in that: At the middle of the bottom of the flatbed cart (1), a bottom plate (15) is fixedly connected. Above the inner side of the bottom plate (15), an electric push rod (16) is fixedly connected. The output end of the electric push rod (16) is fixedly connected with a vacuum suction cup (17). The battery compartment (4) is electrically connected to the electric push rod (16) and the vacuum suction cup (17).

7. The subway car door disassembly and assembly mechanism according to claim 6, characterized in that: The number of the electric push rods (16) and the vacuum suction cups (17) is several, and the electric push rods (16) and the vacuum suction cups (17) are evenly arranged from left to right on the inner side of the bottom plate (15).

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