Lifting operation structure for subway busbar installation

Abstract

The lifting operation structure comprises an operation platform on a flat car, multiple sets of lifting devices distributed in the length direction of the platform are arranged on the platform face of the operation platform, transverse moving mechanisms are installed at the upper ends of the lifting devices, and the multiple sets of transverse moving mechanisms are connected with the busbar to temporarily fix the busbar. And the height and the transverse position of the busbar are adjusted to the mounting position by the lifting device and the transverse moving mechanism. According to the utility model, the busbar is only required to be placed on the transverse moving mechanism, and the lifting and transverse moving mechanical control of the busbar is realized through the linkage lifting and single-action fine adjustment operation of the lifting device and the transverse moving mechanism, so that the busbar can be accurately adjusted; the problems that a traditional busbar lifting mode is large in labor intensity and potential safety hazards are solved, labor force is saved, the labor intensity of field personnel is reduced, the field operation efficiency is improved, the requirement that manual work is replaced by machinery can be met, driving safety and operation safety of vehicles are guaranteed, and the busbar lifting device is suitable for installation and overhaul operation of busbars of different lengths.

Description

Technical Field

[0001] This utility model belongs to the technical field of equipment for the inspection, maintenance and replacement of subway busbars, and specifically relates to a lifting structure for the installation of subway busbars. Background Technology

[0002] The environment inside subway tunnels is complex, with a high concentration of sewage. Direct dripping or leakage onto the overhead contact line equipment causes severe corrosion, especially to rigid overhead busbars which are less corrosion-resistant. The large span of busbars in rigid contact line suspensions makes it easy for positioning clamps to become stuck. Thermal expansion and contraction of the busbars themselves, misalignment of clamps with the busbars, and unclean surfaces can all cause the busbars to twist and deform, and arcing can also occur. Busbar replacement is primarily done manually, with each busbar being tens of meters long and weighing tens of kilograms. Whether using a combination of manpower and engineering vehicles or manpower and ladder trucks, removing or installing busbars is extremely strenuous and carries relatively high safety risks. Therefore, improvements are proposed to address these issues. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a lifting operation structure for the installation of subway busbars. By setting a lifting device and a lateral movement mechanism on the working platform of a flatbed truck, the height and lateral movement position of the busbar during installation are mechanized. Simply place the busbar on the lateral movement mechanism, and through the linkage lifting and single-action fine-tuning operation of the lifting device, combined with the lateral movement mechanism on the lifting device, the lifting and lateral movement of the busbar are mechanized and controlled. This ensures that the busbar can be accurately adjusted, solving the problems of high labor intensity and safety hazards of traditional busbar lifting methods. It saves labor, reduces the labor intensity of on-site personnel, improves on-site operation efficiency, meets the requirement of mechanical replacement of manual work, ensures vehicle driving safety and operational safety, and is adaptable to the installation and maintenance of busbars of different lengths.

[0004] The technical solution adopted by this utility model is a lifting operation structure for the installation of subway busbars, including an operation platform installed on a flatbed vehicle. The platform is provided with multiple sets of lifting devices distributed along its length, and a lateral movement mechanism is installed on the upper end of the lifting devices. The multiple sets of lateral movement mechanisms are connected to the busbar for temporary fixation, and the height and lateral position of the busbar are adjusted to the installation position by the lifting devices and the lateral movement mechanisms.

[0005] The lifting device includes a scissor lift platform. The base of the lower end of the scissor lift platform is fixed to the platform surface of the work platform by bolts, and the lateral movement mechanism is installed on the top plate of the upper end of the scissor lift platform. The scissor lift platform is driven by an electric cylinder for lifting.

[0006] Furthermore, a support locking post is fixed in the middle of both sides of the base, and a proximity switch for detecting the position of the top plate is provided on the upper end of one of the support locking posts. Locking seats for locking with the support locking post by inserting locking pins are fixed on both sides of the bottom surface of the top plate, and an alarm light controlled to be turned on by the proximity switch is provided on the bottom surface of the top plate.

[0007] Furthermore, the lifting device is provided in no less than two sets, and the distance between each set of lifting devices is determined according to the length of the busbar.

[0008] Furthermore, the lateral movement mechanism includes a support base fixed at the lower end to the upper end of the lifting device and a lead screw rotatably mounted in the middle of the support base. Both sides of the lead screw are provided with guide shafts whose ends are mounted on the corresponding side walls of the support base, and the middle of the lateral movement base is adapted to the lead screw. Both bottom surfaces of the lateral movement base are provided with guide seats that are slidably connected to the guide shafts. A handwheel located on the outside of the support base is fixedly connected to the corresponding end of the lead screw, and the lateral movement base can be moved along the length direction of the lead screw by rotating the handwheel. Limit seats are installed at both ends of the upper surface of the lateral movement base, and the busbar limit is installed on the limit seats.

[0009] Furthermore, the limiting seat is a U-shaped seat with an open upper end and a flat lower end. Both sides of the inner groove surface of the limiting seat are fixed with rubber buffer pads with a positioning gap in the middle, and the busbar is positioned on the two rubber buffer pads. The middle of the upper edge of one side plate of the limiting seat is hinged to one end of the pressure plate, and the positioning rod in the middle of the other end of the pressure plate is adapted to the positioning groove in the middle of the upper edge of the other side plate of the limiting seat.

[0010] Furthermore, the support base adopts a structure with horizontal outer edges on the lower edges of the U-shaped base with the opening facing downward. The upper surface of the support base is fixed with L-shaped side plates facing each other, and the lead screw and the guide shafts on both sides are located between the two L-shaped side plates. The two ends of the lead screw are rotatably mounted on the L-shaped side plate on the same side, and one end of the lead screw extends out of the L-shaped side plate on the same side and is fixedly connected to the handwheel. The two ends of the guide shaft are connected to the corresponding L-shaped side plate.

[0011] Furthermore, the rubber buffer pad has a right-angled trapezoidal structure with an inclined surface away from the L-shaped side plate on the same side.

[0012] Furthermore, the work platform includes a platform plate and multiple sets of support legs disposed on the bottom surface of the platform plate.

[0013] Furthermore, the platform plate is provided with guardrails that are connected end to end along both long sides and the wide side, and openings are provided at both ends of the guardrails on both long sides of the platform plate for workers to enter and exit.

[0014] Advantages of this utility model compared to the prior art:

[0015] 1. This technical solution provides installation support for the lifting device with a horizontal movement mechanism at the top by setting up a working platform with guardrails on all four sides on a flatbed truck, while improving the safety and reliability of workers during operation.

[0016] 2. This technical solution achieves mechanized lifting of the busbar's height and lateral position during installation by setting up a lifting device and a lateral movement mechanism on the working platform. Simply place the busbar on the lateral movement mechanism, and through the linkage lifting and single-action fine-tuning operation of the lifting device, combined with the lateral movement mechanism on the lifting device, the lifting and lateral movement of the busbar can be mechanized, ensuring that the busbar can be accurately adjusted. This solves the problems of high labor intensity and safety hazards in traditional busbar lifting methods.

[0017] 3. This technical solution sets support locking columns at both ends of the base, and locks the locking seats on both sides of the bottom of the top plate with the support locking columns by locking pins. The proximity switch on the support locking column controls the warning light on the bottom of the top plate to open or close according to the working status of the scissor lift platform, so as to realize the locking function when the lifting device is not working and the alarm warning function when it is working, ensuring the driving safety and operation safety of the vehicle.

[0018] 4. This technical solution saves labor, reduces the labor intensity of on-site personnel, improves on-site operation efficiency, can meet the needs of mechanical replacement of manual labor, ensures vehicle driving safety and operation safety, and is adaptable to the installation and maintenance of busbars of different lengths. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural diagram of the present invention with the guardrails and flatbed removed;

[0021] Figure 3 This is a schematic diagram of the lifting device and lateral movement mechanism of this utility model;

[0022] Figure 4 This is a schematic diagram of the transverse movement mechanism of this utility model. Detailed Implementation

[0023] The following will be based on the embodiments of this utility model. Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that, unless otherwise stated herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Lifting structures used for subway busbar installation, such as Figure 1-2 As shown, the system includes a work platform 2 mounted on a flatbed truck 1. Two sets of lifting devices 3 are distributed along the length of the work platform 2. A lateral movement mechanism 4 is mounted on the upper end of each lifting device 3. The two sets of lateral movement mechanisms 4 are connected to a busbar 5 for temporary fixation. The lifting devices 3 and lateral movement mechanisms 4 adjust the height and lateral position of the busbar 5 to the installation position. In this structure, by setting up lifting devices 3 and lateral movement mechanisms 4 on the work platform 2, the height and lateral movement position of the busbar 5 during installation are mechanically lifted. Simply place the busbar on the lateral movement mechanism 3, and through the linkage lifting and single-action fine-tuning operation of the lifting devices 3, combined with the lateral movement mechanism 4 on the lifting devices 3, the lifting and lateral movement of the busbar 5 are mechanically controlled, ensuring accurate adjustment of the busbar 5. This solves the problems of high labor intensity and safety hazards associated with traditional lifting methods for the busbar 5.

[0027] like Figure 3As shown, the specific structure of the lifting device 3 is as follows: The lifting device 3 includes a scissor lift platform 3-1. The base 3-2 at the lower end of the scissor lift platform 3-1 is fixed to the platform of the work platform 2 by bolts, and the lateral movement mechanism 4 is installed on the top plate 3-3 at the upper end of the scissor lift platform 3-1. The scissor lift platform 3-1 is driven to lift by an electric cylinder 3-4. Support locking columns 3-5 are fixed in the middle of both sides of the base 3-2, and one of the support locking columns 3-5 is provided with a proximity switch for detecting the position of the top plate 3-3. Locking seats 3-7 are fixed on both sides of the bottom surface of the top plate 3-3 for locking with the support locking column 3-5 by locking pins 3-6. The bottom surface of the top plate 3-3 is provided with a proximity switch trigger. The warning lights 3-8 are activated by the control mechanism. The lifting device 3 is mechanically locked to the locking pin 3-6 via the support locking pin 3-5. Before operation, the locking pin 3-6 is removed to unlock the device. After the locking pin 3-6 is removed, a proximity switch is triggered to illuminate the warning lights 3-8 and begin operation. After the lifting device 3 is reset, the locking pin 3-6 is used to mechanically lock the device, triggering the proximity switch to extinguish the warning lights 3-8 and stop operation. This achieves the mechanical locking and alarm functions of the lifting device 3, ensuring vehicle driving safety and operational safety. Specifically, the distance between the two sets of lifting devices 3 is determined according to the length of the busbar 5. When each set of lifting devices 3 is lifted simultaneously, it is used to adjust the overall height of the busbar 5. When each lifting device 3 is lifted individually, it is used for fine adjustment of the height of the corresponding end of the busbar 5.

[0028] like Figure 4 As shown, the specific structure of the transverse mechanism 4 is as follows: The transverse mechanism 4 includes a support base 4-1 with its lower end fixed to the upper end of the lifting device 3 and a lead screw 4-2 rotatably mounted in the middle of the support base 4-1. Guide shafts 4-3 are provided on both sides of the lead screw 4-2, with their ends mounted on the corresponding sidewalls of the support base 4-1. The middle part of the transverse mechanism 4-4 is adapted to and connected to the lead screw 4-2. Guide seats 4-5 are mounted on the bottom surfaces of both ends of the transverse mechanism 4-4 and are slidably connected to the guide shafts 4-3. A handwheel 4-6 located on the outside of the support base 4-1 is fixedly connected to the corresponding end of the lead screw 4-2. The transverse mechanism 4-4 is moved by rotating the handwheel 4-6. The moving seat 4-4 moves along the length of the lead screw 4-2. Limit seats 4-7 are installed at both ends of the upper surface of the transverse moving seat 4-4, and the busbar 5 is limited and installed on the limit seats 4-7. In the above structure, the lead screw 4-2 is rotated by rotating the handwheel 4-6, so that the moving seat 4-4 moves along the length of the lead screw 4-2 under the premise that the lead screw 4-2 rotates, thereby realizing the adjustment of the transverse position of the busbar 5. It can adapt to the adjustment of the installation position of different lines. The cooperation between the guide shaft 4-3 and the guide seat 4-5 guides the moving seat 4-4 during the transverse movement, thereby ensuring the stability of the moving seat 4-4 during the transverse movement.

[0029] The limiting structure of the limiting seat 4-7 for the busbar 5 is as follows: The limiting seat 4-7 is a U-shaped seat with an open upper end and a flat lower end. Both sides of the inner groove surface of the limiting seat 4-7 are fixed with rubber buffer pads 4-11 with a positioning gap in the middle. The busbar 5 is positioned on the two rubber buffer pads 4-11. The middle of the upper edge of one side plate of the limiting seat 4-7 is hinged to one end of the pressure plate 4-8. The positioning rod 4-9 at the middle of the other end of the pressure plate 4-8 is adapted to the positioning groove 4-10 in the middle of the upper edge of the other side plate of the limiting seat 4-7. When the limiting seat 4-7 is opened around the hinge position, the busbar 5 can enter and exit the limiting seat 4-7. When the limiting seat 4-7 is wound around to the positioning rod 4-9 adapted to the positioning groove 4-10, the busbar 5 installed in the limiting seat 4-7 is limited, ensuring the safety of the busbar 5 during lifting, lowering and lateral movement.

[0030] The specific structure of the support base 4-1 is as follows: The support base 4-1 adopts a structure with horizontal outer edges on the lower edges of the U-shaped base with the opening facing downward. The upper surface of the support base 4-1 is fixed with L-shaped side plates facing each other. The lead screw 4-2 and the guide shafts 4-3 on both sides are located between the two L-shaped side plates. The two ends of the lead screw 4-2 are rotatably mounted on the L-shaped side plate on the same side. One end of the lead screw 4-2 extends out of the L-shaped side plate on the same side and is fixedly connected to the handwheel 4-6. The two ends of the guide shaft 4-3 are connected to the corresponding L-shaped side plate. Specifically, the rubber buffer pad 4-11 has a right-angled trapezoidal structure with an inclined surface away from the L-shaped side plate on the same side.

[0031] like Figure 1-2 As shown, the specific structure of the work platform 2 is as follows: The work platform 2 includes a platform plate 2-1 and multiple sets of support legs 2-2 on the bottom surface of the platform plate 2-1; specifically, the two long sides and the wide side of the platform plate 2-1 are provided with guardrails 2-3 connected end to end, and the guardrails 2-3 on the two long sides of the platform plate 2-1 are provided with openings 2-4 at both ends for workers to enter and exit; by setting up the work platform 2 with guardrails 2-3 on all four sides on the flatbed 1, the lifting device 3 with the horizontal movement mechanism 4 at the upper end is provided with installation support conditions, and the safety and reliability of workers during operation are improved.

[0032] This technical solution achieves mechanized lifting of the manifold 5 during installation by setting a lifting device 3 and a lateral movement mechanism 4 on the working platform 2, thereby controlling the height and lateral movement position 4. Simply place the manifold 5 on the lateral movement mechanism 4, and through the coordinated lifting and single-action fine-tuning of the lifting device 3, combined with the lateral movement mechanism 4 on the lifting device 3, achieve mechanized control of the lifting and lateral movement of the manifold 5. This ensures accurate adjustment of the manifold 5, solving the problems of high labor intensity and safety hazards associated with traditional manifold lifting methods. It saves labor, reduces the labor intensity of on-site personnel, improves on-site work efficiency, meets the requirement of mechanical replacement of manual labor, ensures vehicle driving safety and operational safety, and is adaptable to the installation and maintenance of manifolds of different lengths.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lifting structure for metro busbar installation, characterized in that: The utility model provides a kind of work platform (2) including installation on flat car (1), the deck of the work platform (2) is equipped with multiple groups of lifting device (3) along its length direction distribution, and the upper end of lifting device (3) is equipped with transverse moving mechanism (4), multiple groups of the transverse moving mechanism (4) are connected with busbar (5) and are temporarily fixed to it, and the height and lateral position of busbar (5) are adjusted to installation site by lifting device (3) and transverse moving mechanism (4).

2. The lifting structure for metro busbar installation according to claim 1, characterized in that: The lifting device (3) includes scissor lift platform (3-1), the base (3-2) of the lower end of the scissor lift platform (3-1) is fixed by bolt on the deck of work platform (2), and the transverse moving mechanism (4) is installed on the top plate (3-3) of the upper end of the scissor lift platform (3-1), and the scissor lift platform (3-1) is driven to lift using electric cylinder (3-4).

3. The lifting structure for metro busbar installation according to claim 2, characterized in that: The base (3-2) is fixed with support locking column (3-5) in the middle of both sides, and the upper end of one of support locking column (3-5) is equipped with proximity switch for detecting the position of top plate (3-3), the bottom surface of the top plate (3-3) is fixed with lock seat (3-7) for inserting and locking with support locking column (3-5) through locking pin (3-6) on both sides, and the bottom surface of the top plate (3-3) is equipped with warning light (3-8) triggered by proximity switch to control opening.

4. The lifting structure for installation of a metro busbar as claimed in claim 1, wherein: The lifting device (3) is equipped with not less than two groups, and the distance between each group of lifting device (3) is determined according to the length of busbar (5).

5. The lifting structure for installation of a metro busbar as claimed in claim 1, wherein: The transverse moving mechanism (4) includes support seat (4-1) fixed on the upper end of lifting device (3) and lead screw (4-2) rotatably installed in the middle of support seat (4-1), both sides of the lead screw (4-2) are equipped with guide shaft (4-3) with end fixed on the corresponding side wall of support seat (4-1), the middle of transverse seat (4-4) is connected with lead screw (4-2), both ends of the bottom surface of transverse seat (4-4) are equipped with guide seat (4-5) slidingly connected with guide shaft (4-3), hand wheel (4-6) outside support seat (4-1) is fixedly connected with the corresponding end of lead screw (4-2), and transverse seat (4-4) moves along the length direction of lead screw (4-2) by rotating hand wheel (4-6), both ends of the upper surface of transverse seat (4-4) are equipped with limiting seat (4-7), and busbar (5) is limitedly installed on limiting seat (4-7).

6. The lifting structure for metro busbar installation according to claim 5, characterized in that: The limiting seat (4-7) is U-shaped seat with open upper end and flat lower end, rubber buffer pad (4-11) with positioning gap in the middle is fixed on both sides of the inner groove surface of limiting seat (4-7), and busbar (5) is positioned on two rubber buffer pads (4-11), one side plate of limiting seat (4-7) is hinged with pressing plate (4-8) along the middle, and positioning rod (4-9) in the middle of the other end of pressing plate (4-8) is adapted to positioning groove (4-10) in the middle of the other side plate of limiting seat (4-7).

7. The lifting structure for metro busbar installation according to claim 6, characterized in that: The support seat (4-1) is provided with horizontal outer edges on both sides of the lower edge of the U-shaped seat with the opening facing downward, and the opposite L-shaped side plates are fixed on both sides of the upper end surface of the support seat (4-1), and the lead screw (4-2) and the guide shaft (4-3) on both sides thereof are located between the two L-shaped side plates, both ends of the lead screw (4-2) are rotatably installed on the L-shaped side plate on the same side, one end of the lead screw (4-2) extends out of the L-shaped side plate on the same side and is fixedly connected with the hand wheel (4-6), and both ends of the guide shaft (4-3) are connected with the corresponding L-shaped side plate.

8. The lifting structure for installation of a metro busbar according to claim 7, characterized in that: The rubber buffer pad (4-11) is provided in a right-angled trapezoidal structure with the inclined surface away from the L-shaped side plate on the same side.

9. The lifting work structure for the installation of a metro busbar according to any one of claims 1 to 8, characterized in that: The working platform (2) comprises a platform plate (2-1) and a plurality of groups of supporting legs (2-2) arranged on the bottom surface of the platform plate (2-1).

10. The lifting structure for metro busbar installation according to claim 9, characterized in that: The platform plate (2-1) is provided with the guardrails (2-3) connected head to tail along the positions on both sides of the long edges and the wide edge side plate, and the openings (2-4) for the workers to enter and exit are formed at both ends of the guardrails (2-3) on both sides of the long edges of the platform plate (2-1).

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