A novel spacer bar installation robot

Abstract

The application provides a novel spacer installation robot, and relates to the technical field of spacer installation.The novel spacer installation robot comprises a hoisting mechanism, a supporting structure and an execution mechanical arm mechanism, the bottom of the hoisting mechanism is provided with the supporting structure, the bottom of the hoisting mechanism is provided with the execution mechanical arm mechanism, the supporting structure is arranged in the lower part of the execution mechanical arm mechanism, the execution mechanical arm mechanism comprises a mechanical arm two, a mechanical arm one, a rotating rod one, a fixed table one, a fixed rod, a fixed block one, a hydraulic cylinder and a rotating column, the left end of the mechanical arm two is provided with the mechanical arm one, and the lower end of the mechanical arm one is rotationally connected with the rotating rod one. The multiple mechanical arms and the stored storage bin can timely replace the spacers on the wire ropes, the personnel need to manually install the spacers is reduced, and the demand for using different mechanical arms to classify and install the spacers is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spacer installation, in particular to a novel spacer installation robot. BACKGROUND

[0002] With the development of China's power industry, while accelerating the construction of power plants, the construction of power grids is also accelerating. In the construction of transmission lines, the urgent issue to be solved is to improve the transmission capacity of the transmission line, and to reasonably arrange the increasingly tight line corridor. The most direct method to improve the transmission capacity of the line is to increase the voltage level and increase the outgoing loop. However, if the outgoing loop is increased, not only the investment is increased, but also the difficulty of processing the line corridor is increased. The compact line adopts the method of increasing the split distance and reducing the phase-to-phase distance between adjacent phase conductors to achieve the purpose of increasing the natural transmission power of the transmission line and reducing the line corridor occupation. However, there is a prominent contradiction that the transmission line is prone to cause adjacent conductor line collision and line-to-line air insulation breakdown under the action of various external factors such as conductor wind vibration and wake-induced vibration. The most effective way to solve this contradiction is to install an insulating spacer between adjacent phase conductors to ensure that there is enough insulation distance between adjacent phase conductors. Therefore, promoting mechanized construction and reducing the investment of human resources has become a development trend in the field of transmission line engineering construction.

[0003] The more the multi-split spacers are, the larger the overall volume and weight are, especially for the power grid. Due to the restriction of high-altitude complex conditions of line network layout, conventional spacer installation construction often can only rely on manual installation. Installing spacers by personnel in the air will increase the safety burden of personnel in the air. If there is any carelessness, the personnel or spacers will fall from the air, which will cause loss of personnel and materials. When using manual installation, the engineering cost will be increased. Meanwhile, the personnel will be limited by time and space during construction, which will lead to the reduction of the work efficiency of the personnel in installing spacers and the increase of the engineering burden. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a novel spacer installation robot, which solves the problem that only manual installation of spacers can be used and the number of spacers that cannot be quickly installed and the work efficiency are increased.

[0005] To achieve the above object, the present application is implemented by the following technical scheme: a novel spacer installation robot, comprising a hoisting mechanism, a supporting structure and an execution mechanical arm mechanism, the hoisting mechanism is provided with the supporting structure at the bottom, the hoisting mechanism is provided with the execution mechanical arm mechanism at the bottom, and the supporting structure is arranged in the middle lower part of the execution mechanical arm mechanism.

[0006] The execution mechanical arm mechanism includes mechanical arm two, mechanical arm one, rotating rod one, fixed table one, fixed rod, fixed block one, hydraulic cylinder and rotating column, the left middle part of the mechanical arm two is provided with the mechanical arm one, the lower middle part of the mechanical arm one is rotatably connected with the rotating rod one, the lower middle part of the rotating rod one is provided with the fixed table one, the lower middle part of the fixed table one is provided with the rotating column, the lower middle part of the rotating column is fixedly connected with the hydraulic cylinder, the fixed table one is fixedly connected with the fixed rod on the side away from each other, the fixed rod is below the mechanical arm two, and the upper middle part of the fixed rod is provided with the fixed block one.

[0007] Preferably, the lifting mechanism includes a support plate, a fixed block two, a fixed rope, a motor two, a mounting block, a fixed plate, a support column one, a sliding wheel one, a sliding wheel three and a connecting column, the left and right opposite sides of the support plate are provided with the sliding wheel one, the left and right opposite sides of the sliding wheel one are fixedly connected with the motor two, the upper middle part of the support plate is provided with a plurality of fixed ropes, the lower middle part of the fixed rope is provided with the sliding wheel three, the front and rear opposite sides of the sliding wheel three are rotatably connected with the mounting block, the left and right opposite sides of the support plate are provided with the fixed plate, the front and rear opposite sides of the sliding wheel one are provided with the rotating rod one, the lower middle part of the rotating rod one is fixedly connected with the mounting block, the left and right opposite sides of the rotating rod one are provided with the motor one, the rear middle part of the motor one is fixedly connected with the fixed block two, the rear middle part of the fixed block two is fixedly connected with the connecting column, and the front middle part of the motor one is fixedly connected with the support plate.

[0008] Preferably, the support structure includes an observer, a clamping groove, a warehouse, a rotating rod two, a support column one, a support column two, a fixed table two and a rope hole, the upper left side of the fixed table two is fixedly connected with the observer, the front and rear opposite sides of the fixed table two are fixedly connected with the clamping groove, the left and right close sides of the clamping groove are fixedly connected with the rotating rod two, the left and right close sides of the rotating rod two are provided with the rope hole, the rope hole is provided with the support column one, the front and rear opposite sides of the support column one are fixedly connected with the fixed table two, the right side of the inner wall of the fixed table two is provided with the warehouse, and the front and rear opposite sides of the fixed table two are provided with the support column two.

[0009] Preferably, the support column two penetrates through the rotating rod two and is located at the lower end of the rotating rod two, the rotating rod two is arranged below the support plate, the lower end of the support plate is provided with the sliding wheel two, and the lower middle part of the sliding wheel two is fixedly connected with the support column two.

[0010] Preferably, the hydraulic cylinder is arranged below the fixed table one, the lower middle part of the hydraulic cylinder is fixedly connected with the fixed table two, and the fixed table two is arranged below the support plate.

[0011] Preferably, the fixed rope output end is fixedly connected at the rope hole input end, and the rope hole is arranged below the support plate.

[0012] Preferably, the lower middle of the support plate is provided with a mechanical arm one and a mechanical arm two, and the support plate is arranged above the warehouse.

[0013] Preferably, the warehouse is arranged above the mechanical arm one and the mechanical arm two, and the warehouse is arranged below the fixed block two, and the fixed block two is located in the front part of the inner side wall of the support plate.

[0014] Preferably, a novel spacer rod installation robot uses a method, comprising the following steps:

[0015] Step one, first, the motor one in the hoisting mechanism winds the fixed rope above the support plate, and then the motor one collects the fixed rope, when the hoisting mechanism is fixed on the power transmission line, the mechanical arm one and the mechanical arm two are installed on the upper end of the support structure, which facilitates the operation of personnel on the ground, and when the spacer rod is installed, the personnel can operate the mechanical arm one to take out the spacer rod in the warehouse, and then the mechanical arm one rotates and swings through the driving of the rotating rod one, which reduces the need for personnel to install it by manpower, and the need for different mechanical arms to classify and install the spacer rod.

[0016] Step two, after the spacer rod is installed on the cable, the personnel can operate the mechanical arm two to install the spacer rod, and then when sliding, the clamping groove fixed on the fixed block two will clamp the support column two, and the sliding wheel two on the upper end of the support column two will be started, and then through the cooperation of the sliding wheel two and the support column two, the fixed block two and the warehouse can be slid when sliding on the wire, which reduces the inability to cross the spacer rod when using a single sliding wheel to slide.

[0017] Step three, at the same time, when the bottom slides, the support plate on the upper end of the fixed table two will be driven by the motor two, so that the sliding wheel three can drive the support plate to slide, and in order to prevent unilateral sliding wheel from sliding insufficiently, the support column one connects the support plate and the fixed table two, so that the sliding wheel one and the sliding wheel two can drive the hoisting mechanism, the support structure and the execution mechanical arm mechanism to slide uniformly, and multiple sliding wheels can make installation more convenient.

[0018] The present application provides a novel spacer rod installation robot.

[0019] 1. The application, when the spacer rod starts to install, the mechanical arm two will disassemble the spacer rod fixed on the cable, at the same time, the mechanical arm one will fix the disassembled spacer rod, prevent falling phenomenon during disassembly, then during installation, the mechanical arm one will rotate the rod one and the fixed table one, so that the mechanical arm one and the mechanical arm two can rotate, then through the cooperation of the fixed rod and the hydraulic cylinder, the device can provide power for the mechanical arm one and the mechanical arm two, the use of multiple mechanical arms and storage warehouse can timely replace the spacer on the wire rope, reduce the need for personnel to install by manpower, and the use of different mechanical arms for classification and installation of spacer.

[0020] 2. The application, after installing a spacer, personnel can observe whether the spacer is installed through the observer, then the support column two fixed on the fixed table two can slide through the wire rope under the drive of the sliding wheel two, at the same time, the support column one fixed on the fixed table two and the fixed plate can drive the support plate to slide, and when the fixed table two slides through the sliding wheel two, the sliding wheel one at both ends of the support plate inside will slide, then it will also drive the support plate one to slide, which reduces the difficulty of sliding through the single sliding wheel, and multiple sliding wheels can make installation more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front view structure schematic diagram of the application;

[0022] Figure 2 It is a side view structure schematic diagram of the application;

[0023] Figure 3 It is a support plate top view internal structure schematic diagram of the application;

[0024] Figure 4 It is a support plate side view internal structure schematic diagram of the application;

[0025] Figure 5 It is a fixed table two front view internal structure schematic diagram of the application;

[0026] Figure 6 It is a mechanical arm one structure schematic diagram of the application;

[0027] Figure 7 It is a fixed table two top view structure schematic diagram of the application;

[0028] Figure 8 It is an enlarged schematic diagram of A in the application; Figure 3 ​

[0029] Figure 9 For the invention Figure 3 Amplified schematic diagram in B.

[0030] Wherein, 1, lifting mechanism; 2, support structure; 3, execution mechanical arm mechanism; 4, warehouse; 5, hydraulic cylinder; 6, coupling column; 7, sliding wheel one; 8, sliding wheel two; 9, support plate; 10, rotating rod one; 11, rotating rod two; 12, fixed rope; 13, fixed plate; 14, support column one; 15, observer; 16, clamping groove; 17, rotating column; 18, fixed rod; 19, fixed table two; 20, motor one; 21, motor two; 22, support column two; 23, mechanical arm one; 24, mechanical arm two; 25, fixed block one; 26, rope hole; 27, fixed table one; 28, mounting block; 29, sliding wheel three; 30, fixed block two. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0032] Embodiment:

[0033] As Figures 1-2 shown, the present application provides a novel spacer installation robot, which comprises a lifting mechanism 1, a support structure 2 and an execution mechanical arm mechanism 3, the bottom of the lifting mechanism 1 is provided with the support structure 2, the bottom of the lifting mechanism 1 is provided with the execution mechanical arm mechanism 3, and the support structure 2 is arranged in the lower part of the execution mechanical arm mechanism 3.

[0034] The execution mechanical arm mechanism 3 comprises a mechanical arm two 24, a mechanical arm one 23, a rotating rod one 10, a fixed table one 27, a fixed rod 18, a fixed block one 25, a hydraulic cylinder 5 and a rotating column 17, the left end of the mechanical arm two 24 is provided with the mechanical arm one 23, the lower end of the mechanical arm one 23 is rotatably connected with the rotating rod one 10, the lower end of the rotating rod one 10 is provided with the fixed table one 27, the lower end of the fixed table one 27 is provided with the rotating column 17, the lower end of the rotating column 17 is fixedly connected with the hydraulic cylinder 5 to provide power for it, and the fixed rod 18 is fixedly connected with the fixed table one 27 away from one side to be fixed and supported, the fixed rod 18 is located below the mechanical arm two 24, and the mechanical arm two 24 can swing left and right, and the fixed block one 25 is arranged at the upper end of the fixed rod 18 to fix it.

[0035] As Figures 3-9As shown, the lifting mechanism 1 comprises a support plate 9, a fixed block two 30, a fixed rope 12, a motor two 21, a mounting block 28, a fixed plate 13, a support column one 14, a sliding wheel one 7, a sliding wheel three 29 and a connecting column 6, the left and right opposite sides of the support plate 9 are provided with the sliding wheel one 7 so that it can slide, which will increase the device to cross the partition plate so that it can slide faster, the left and right opposite sides of the sliding wheel one 7 are fixedly connected with the motor two 21 which will provide power for the mechanical arm one 23 and the mechanical arm two 24, a plurality of fixed ropes 12 are arranged on the upper end of the support plate 9, the fixed ropes 12 are fixed by the plurality of fixed ropes 12, the lower end of the fixed rope 12 is provided with the sliding wheel three 29, the front and rear opposite sides of the sliding wheel three 29 are rotatably connected with the mounting block 28, the middle of the left and right opposite sides of the support plate 9 is provided with the fixed plate 13 so that it can be fixed to reduce the loosening phenomenon during conveying, the front and rear opposite sides of the sliding wheel one 7 are provided with the rotating rod one 10 so that it can rotate, when rotating, the personnel will operate the motor one 20 inside the lifting mechanism 1 to wind the fixed rope 12 above the support plate so that it can be fixed, then the motor one 20 will collect the fixed rope, the lower end of the rotating rod one 10 is fixedly connected with the mounting block 28 so that it can be installed, the left and right opposite sides of the rotating rod one 10 are provided with the motor one 20, the rear middle of the motor one 20 is fixedly connected with the fixed block two 30 so that it can be fixed, the rear middle of the fixed block two 30 is fixedly connected with the connecting column 6 so that it can be connected, which is convenient for personnel to install, the front middle of the motor one 20 is fixedly connected with the support plate 9 so that it can be supported, the support structure 2 comprises an observer 15, a clamping groove 16, a warehouse 4, a rotating rod two 11, a support column one 14, a support column two 22, a fixed table two 19 and a rope hole 26, the upper end of the left side of the fixed table two 19 is fixedly connected with the observer 15, the front and rear opposite sides of the fixed table two 19 are fixedly connected with the clamping groove 16, the middle of the side close to the clamping groove 16 is fixedly connected with the rotating rod two 11, the side close to the rotating rod two 11 is provided with the rope hole 26, the opposite side of the rope hole 26 is provided with the support column one 14, the front and rear opposite sides of the support column one 14 are fixedly connected with the fixed table two 19, the right side of the inner wall of the fixed table two 19 is provided with the warehouse 4 for storing different partition plates for quick installation, the front and rear opposite sides of the fixed table two 19 are provided with the support column two 22, the support column two 22 penetrates through the rotating rod two 11 and is located below the lower end of the rotating rod two 11, the rotating rod two 11 is located below the support plate 9 so that it can be supported, the lower end of the support plate 9 is provided with the sliding wheel two 8, the lower end of the sliding wheel two 8 is fixedly connected with the support column two 22, the hydraulic cylinder 5 is located below the fixed table one 27, the lower end of the hydraulic cylinder 5 is fixedly connected with the fixed table two 19, the fixed table two 19 is located below the support plate 9, the output end of the fixed rope 12 is fixedly connected at the input end of the rope hole 26, the rope hole 26 is located below the support plate 9,The middle part of the lower end of the support plate 9 is provided with a mechanical arm one 23 and a mechanical arm two 24, so that personnel can operate the mechanical arm one 23 and the mechanical arm two 24 to install and dismount different spacer bars, the support plate 9 is located above the goods warehouse 4, the goods warehouse 4 is located above the mechanical arm one 23 and the mechanical arm two 24, so that the installation and dismounting can be classified, the goods warehouse 4 is located below the fixed block two 30, so that the mechanical arm one 23 and the mechanical arm two 24 can take, the fixed block two 30 is located in the front part of the inner side wall of the support plate 9, so that it can be fixed, which can reduce the need for personnel to install the spacer plate during installation.

[0036] The embodiment of the present application provides a novel spacer bar installation robot use method, which comprises the following steps:

[0037] Step one, first, the motor one 20 in the hoisting mechanism 1 winds the fixed rope 12 above the support plate, then the motor one 20 collects the fixed rope, when the hoisting mechanism 1 is fixed on the power transmission line, the mechanical arm one 23 and the mechanical arm two 24 are installed on the upper end of the support structure 2, so that personnel on the ground can quickly operate, when installing the spacer bar, personnel can operate the mechanical arm one 23 to take out the spacer bar in the goods warehouse 4, then the mechanical arm one 23 rotates and swings under the drive of the rotating rod one 10, the mechanical arm one 23 and the mechanical arm two 24 reduce the need for personnel to install by manpower, and the use of different mechanical arms for classified installation of the spacer bar is reduced.

[0038] Step two, after the spacer bar is installed on the cable, personnel can operate the mechanical arm two 24 to install the spacer bar, then when sliding, the clamping groove 16 fixed on the fixed block two 30 clamps the support column two 22, and the sliding wheel two 8 on the upper end of the support column two 22 is started, then through the cooperation of the sliding wheel two 8 and the support column two 22, the fixed block two 30 and the goods warehouse 4 can slide when sliding on the cable, and the single sliding wheel sliding cannot cross the spacer bar.

[0039] Step three, when the bottom slides, the support plate 9 on the upper end of the fixed table two 19 can slide under the drive of the motor two 21, so that the sliding wheel three 29 can drive the support plate 9 to slide, in order to prevent unilateral sliding wheel from sliding insufficiently, the support column one 14 connects the support plate 9 and the fixed table two 19, so that the sliding wheel one 7 and the sliding wheel two 8 can drive the hoisting mechanism 1, the support structure 2 and the execution mechanical arm mechanism 3 to slide uniformly, and multiple sliding wheels can make installation more convenient.

[0040] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A novel spacer installation robot, comprising a hoisting mechanism (1), a support structure (2) and an execution mechanical arm mechanism (3), characterized in that: The lifting mechanism (1) bottom is provided with a support structure (2), the lifting mechanism (1) bottom is provided with an execution mechanical arm mechanism (3), the support structure (2) is arranged in execution mechanical arm mechanism (3) middle lower part;The execution mechanical arm mechanism (3) includes mechanical arm two (24), mechanical arm one (23), rotating rod one (10), fixed table one (27), fixed rod (18), fixed block one (25), hydraulic cylinder (5) and rotating column (17), the mechanical arm two (24) left end middle part is provided with mechanical arm one (23), the mechanical arm one (23) lower end middle part is rotatably connected with rotating rod one (10), the rotating rod one (10) lower end middle part is provided with fixed table one (27), the fixed table one (27) lower end middle part is provided with rotating column (17), the rotating column (17) lower end middle part is fixedly connected with hydraulic cylinder (5), the fixed table one (27) far side is fixedly connected with fixed rod (18), the fixed rod (18) is located below the mechanical arm two (24), the fixed rod (18) upper end middle part is provided with fixed block one (25); The support structure (2) includes observer (15), clamping groove (16), warehouse (4), rotating rod two (11), support column one (14), support column two (22), fixed table two (19) and rope hole (26), the fixed table two (19) upper end left side is fixedly connected with observer (15), the fixed table two (19) front and back relative one side is fixedly connected with clamping groove (16), the clamping groove (16) left and right close one side middle part is fixedly connected with rotating rod two (11), the rotating rod two (11) left and right close one side is provided with rope hole (26), the rope hole (26) opposite side is provided with support column one (14), the support column one (14) front and back relative one side is fixedly connected with fixed table two (19), the fixed table two (19) inner side wall right side is provided with warehouse (4), the fixed table two (19) front and back relative one side middle part is provided with support column two (22); The support column two (22) penetrates rotating rod two (11) and is located at the lower end of rotating rod two (11), the rotating rod two (11) is arranged below the support plate (9), the support plate (9) lower end is provided with sliding wheel two (8), the sliding wheel two (8) lower end middle part is fixedly connected with support column two (22); The hydraulic cylinder (5) is arranged below the fixed table one (27), the hydraulic cylinder (5) lower end middle part is fixedly connected with fixed table two (19), the fixed table two (19) is arranged below the support plate (9).

2. The novel spacer bar installation robot according to claim 1, characterized in that: The lifting mechanism (1) includes a support plate (9), a fixed block two (30), a fixed rope (12), a motor two (21), a mounting block (28), a fixed plate (13), a support column one (14), a sliding wheel one (7), a sliding wheel three (29) and a connecting column (6), the left and right opposite sides of the support plate (9) are provided with sliding wheel one (7), and the left and right opposite sides of the sliding wheel one (7) are fixedly connected with motor two (21), a plurality of fixed ropes (12) are arranged on the upper middle part of the support plate (9), the lower middle part of the fixed rope (12) is provided with a sliding wheel three (29), and the front and rear opposite sides of the sliding wheel three (29) are rotatably connected with the mounting block (28), the left and right opposite sides of the support plate (9) are provided with a fixed plate (13), the front and rear opposite sides of the sliding wheel one (7) are provided with a rotating rod one (10), the lower middle part of the rotating rod one (10) is fixedly connected with the mounting block (28), the left and right opposite sides of the rotating rod one (10) are provided with a motor one (20), the rear middle part of the motor one (20) is fixedly connected with the fixed block two (30), the rear middle part of the fixed block two (30) is fixedly connected with the connecting column (6), and the front middle part of the motor one (20) is fixedly connected with the support plate (9).

3. The novel spacer bar installation robot according to claim 2, characterized in that: The output end of the fixed rope (12) is fixedly connected at the input end of the rope hole (26), and the rope hole (26) is arranged below the support plate (9).

4. The novel spacer bar installation robot according to claim 2, characterized in that: The lower middle part of the support plate (9) is provided with a mechanical arm one (23) and a mechanical arm two (24), and the support plate (9) is arranged above the warehouse (4).

5. The novel spacer bar installation robot according to claim 1, characterized in that: The warehouse (4) is arranged above the mechanical arm one (23) and the mechanical arm two (24), the warehouse (4) is arranged below the fixed block two (30), and the fixed block two (30) is located in the front part of the inner side wall of the support plate (9).

6. A method of using a novel spacer bar installation robot, characterized by: A novel spacer rod installation robot according to any one of claims 1-5, comprising the following steps: Step one, first, through the motor one (20) inside the lifting mechanism (1), the fixed rope (12) wound above the support plate is collected, then the motor one (20) will collect the fixed rope, when the lifting mechanism (1) is fixed on the power transmission line, the mechanical arm one (23) and the mechanical arm two (24) are arranged on the upper end of the support structure (2) during the installation of the spacer rod, which facilitates the operation of personnel on the ground, during the installation of the spacer rod, personnel can operate the mechanical arm one (23) to take out the spacer rod in the warehouse (4), then the mechanical arm one (23) is rotated and swung by the driving of the rotating rod one (10), which reduces the need for personnel to install it by manpower, and the need for different mechanical arms to classify and install the spacer rod is reduced. Step two, after the spacer bar is installed on the cable, personnel can operate the mechanical arm two (24) to install the spacer bar, and then when sliding, the clamping groove (16) fixed on the fixed block two (30) will clamp the support column two (22), and the sliding wheel two (8) on the upper end of the support column two (22) will start, and then through the cooperation of the sliding wheel two (8) and the support column two (22), it can drive the fixed block two (30) and the warehouse (4) to slide when sliding on the cable, reducing the inability to cross the spacer bar when sliding with a single sliding wheel; Step three, while sliding at the bottom, the support plate (9) at the upper end of the fixed table two (19) will be driven by the motor two (21) to make the sliding wheel three (29) drive the support plate (9) to slide, and in order to prevent the sliding of the sliding wheel from being insufficient on one side, the support column one (14) will connect the support plate (9) and the fixed table two (19) at this time, so that the sliding wheel one (7) and the sliding wheel two (8) can make the lifting mechanism (1), the support structure (2) and the execution mechanical arm mechanism (3) slide uniformly, and at the same time, through multiple sliding wheels, the installation will be more convenient.

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