A stacked single-tube conveying mechanism for building pipes

Abstract

The present invention discloses a stacked single-tube conveying mechanism for building pipes, which belongs to the technical field of building construction, and comprises a bearing metal plate, wherein one end of the upper surface of the bearing metal plate is provided with a conveying assembly for conveying the pipes, one side of the conveying assembly is provided with a storage assembly for arranging and storing the pipes, and the other end of the upper surface of the bearing metal plate is provided with a warning assembly for adjusting the height of the storage assembly and for driving the storage assembly to move back and forth laterally, the conveying assembly comprises a conveying vehicle body, and an adjustable storage plate is provided above the conveying vehicle body; through the mutual cooperation of multiple structures, automatic loading and arrangement of the pipes are realized, and then the pipes are conveyed by a single tube, and the pipes can be conveyed to different positions and different heights according to the conveying requirements, so that the conveying effect of the conveying mechanism is better, and secondly, the present invention has anti-collision and warning functions.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a stacked single-tube conveying mechanism for building pipes. Background Art

[0002] Building construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said that it is the process of turning various lines on the design drawings into physical objects at designated locations. It includes foundation engineering construction, main structure construction and decoration engineering construction. In the process of building construction, it is necessary to transport stacked building pipes, and corresponding transportation mechanisms are needed at this time;

[0003] The traditional conveying mechanism includes a limit mechanism, a positioning guide rail, an adjustment mechanism, a fixed sealing plate, a supporting guide plate, a limit baffle, a connecting shaft, a positioning motor, a mounting seat, a connecting side plate and a supporting guide rail. The advantage of this conveying mechanism is that it can convey pipes of different lengths.

[0004] When using a traditional conveying mechanism, workers are required to load the conveying mechanism through an external conveying mechanism or manual handling. However, manual handling is time-consuming and labor-intensive, and the use of an external conveying mechanism requires the additional purchase of corresponding machinery, making the use of the conveying mechanism inconvenient and in urgent need of improvement. Summary of the invention

[0005] The object of the present invention is to provide a stacked single-tube conveying mechanism for building pipes to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a stackable single-tube conveying mechanism for building pipes, comprising a bearing metal plate, a conveying assembly for conveying the pipes is arranged at one end of the upper surface of the bearing metal plate, a storage assembly for arranging and storing the pipes is arranged at one side of the conveying assembly, a warning assembly for adjusting the height of the storage assembly and for driving the storage assembly to move back and forth laterally is arranged at the other end of the upper surface of the bearing metal plate, the conveying assembly comprises a conveying body, an adjustable storage plate is arranged above the conveying body, a plurality of fifth retractable driving members for adjusting the height of the adjustable storage plate are arranged at both ends of the conveying body, and an elastic anti-slip plate for noise reduction and shock absorption is arranged on the upper surface of the adjustable storage plate.

[0007] As a further solution of the present invention: a plurality of second anti-collision protection plates are arranged at both ends of the transport vehicle body, and a second information display piece for displaying information is arranged on one side of the second anti-collision protection plate away from the adjustable storage plate.

[0008] As a further solution of the present invention: the storage assembly includes a storage box, a second inclined feed plate is arranged inside the storage box, a discharge hole is opened at one end of the storage box, an adjustable sealing plate for sealing the discharge hole is slidably connected to one end of the storage box, and a plurality of fourth retractable driving parts for adjusting the height of the adjustable sealing plate are arranged on the top of the storage box.

[0009] As a further solution of the present invention: a first inclined conveyor plate is arranged below the second inclined conveyor plate, and a storage hole corresponding to the first inclined conveyor plate is opened at one end of the storage box away from the discharge hole, and a plurality of detachable fixing seats corresponding to the storage box are arranged at intervals on the lower surface of the first inclined conveyor plate, and the detachable fixing seats are fixedly connected to the first inclined conveyor plate.

[0010] As a further solution of the present invention: the warning component includes a supporting metal seat, a plurality of third retractable driving components are arranged at both ends of the lower surface of the supporting metal seat, a plurality of supporting metal blocks for supporting the storage box are arranged inside the supporting metal seat, a plurality of limiting round balls are arranged at both ends of the lower surface of the supporting metal block, and a plurality of second retractable driving components for driving the supporting metal block to perform horizontal reciprocating movement are arranged at one end of the supporting metal seat.

[0011] As a further solution of the present invention: a plurality of protective metal plates for limiting and supporting the supporting metal block are arranged on the top of the supporting metal seat, the protective metal plates are slidably connected to the supporting metal block, and the protective metal plates are fixedly connected to the supporting metal seat.

[0012] As a further solution of the present invention: a piston inflatable member is arranged at one end of the supporting metal seat away from the second retractable driving member, a first retractable driving member is arranged at the retractable end of the piston inflatable member, a single-way exhaust pipe is arranged at one end of the piston inflatable member away from the supporting metal block, and a single-way sound tube is arranged on one side of the single-way exhaust pipe.

[0013] As a further solution of the present invention: a hollow sound-amplifying column corresponding to the single-way sound tube is arranged on the lower surface of the supporting metal seat, and a plurality of sound-amplifying tubes are arranged in a circular array on the side of the hollow sound-amplifying column.

[0014] As a further solution of the present invention: the sound-amplifying tube is arranged to penetrate the side wall of the hollow sound-amplifying column, the sound-amplifying tube is fixedly connected to the hollow sound-amplifying column, and a plurality of first anti-collision protection plates are arranged at both ends of the lower surface of the supporting metal seat.

[0015] As a further solution of the present invention: the first anti-collision protection plate is fixedly connected to the supporting metal seat, a plurality of first information display pieces for displaying information are arranged at the bottom of the side of the first anti-collision protection plate, and the first information display pieces are fixedly connected to the first anti-collision protection plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a simple structure and is easy to use. When in use, the automatic loading and arrangement of pipes can be achieved through the mutual cooperation of multiple structures, and then the pipes are transported by a single pipe. The pipes can be transported to different positions and different heights according to the transportation requirements, so that the transportation effect of the conveying mechanism is better. Secondly, the present invention has anti-collision and warning functions, which makes the function of the conveying mechanism more abundant and worthy of promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a stacked single-tube conveying mechanism for building pipes;

[0018] Figure 2 It is a structural schematic diagram of a warning component in a stacked single-tube conveying mechanism for building pipes;

[0019] Figure 3 It is a structural schematic diagram of a storage component in a stacked single-tube conveying mechanism for building pipes;

[0020] Figure 4 It is a structural schematic diagram of a first inclined conveying plate in a stacked single-tube conveying mechanism for building pipes;

[0021] Figure 5 It is a structural schematic diagram of a conveying assembly in a stacked single-tube conveying mechanism for building pipes;

[0022] In the figure: 1-bearing metal plate, 2-warning component, 3-storage component, 4-transport component, 20-sound amplification tube, 21-support metal seat, 22-single-pass sound tube, 23-hollow sound amplification column, 24-first anti-collision protection plate, 25-first information display component, 26-single-pass exhaust pipe, 27-piston inflatable component, 28-first retractable driving component, 291-support metal block, 292-limiting round ball, 293-second retractable driving component, 294-anti Protective metal plate, 295-third retractable drive member, 30-storage hole, 31-first inclined feed plate, 32-second inclined feed plate, 33-storage box, 34-fourth retractable drive member, 35-adjustable blocking plate, 36-discharge hole, 37-detachable fixing seat, 40-second anti-collision protection plate, 41-elastic anti-skid plate, 42-adjustable storage plate, 43-conveyor body, 44-fifth retractable drive member, 45-second information display member. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and "set" should be understood in a broad sense. For example, it can be fixedly connected or set, or it can be detachably connected or set, or integrally connected or set.

[0025] For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] See also Figure 1 The present embodiment provides a stackable single-tube conveying mechanism for building pipes, including a supporting metal plate 1, a conveying component 4 for conveying the pipe is arranged at one end of the upper surface of the supporting metal plate 1, a storage component 3 for arranging and storing the pipe is arranged on one side of the conveying component 4, and a warning component 2 for adjusting the height of the storage component 3 and driving the storage component 3 to move back and forth laterally is arranged at the other end of the upper surface of the supporting metal plate 1. The conveying mechanism is controlled by a PLC or a single-chip microcomputer, and the use of the PLC and the single-chip microcomputer are both existing technologies.

[0027] See also Figure 1 and Figure 5 In one embodiment, in order to make the use of the conveying component 4 more reliable, in this embodiment, preferably, the conveying component 4 includes a conveying body 43, and the use of the conveying body 43 is the existing technology. An adjustable storage plate 42 is arranged above the conveying body 43, and a plurality of fifth retractable driving members 44 for adjusting the height of the adjustable storage plate 42 are arranged at both ends of the conveying body 43. The fifth retractable driving member 44 is a hydraulic cylinder, and an elastic anti-skid plate 41 for noise reduction and shock absorption is arranged on the upper surface of the adjustable storage plate 42. The elastic anti-skid plate 41 is a rubber plate, and a plurality of second anti-collision protection plates 40 are arranged at both ends of the conveying body 43. A second information display member 45 for information display is arranged on the side of the second anti-collision protection plate 40 away from the adjustable storage plate 42, and the second information display member 45 is a liquid crystal screen.

[0028] In another embodiment, the conveying assembly 4 includes a conveying body 43, and the use of the conveying body 43 is the existing technology. An adjustable storage plate 42 is arranged above the conveying body 43, and a plurality of fifth retractable driving components 44 for adjusting the height of the adjustable storage plate 42 are arranged at both ends of the conveying body 43. The fifth retractable driving components 44 are cylinders. The upper surface of the adjustable storage plate 42 is provided with an elastic anti-skid plate 41 for noise reduction and shock absorption. The elastic anti-skid plate 41 is a silicone plate. A plurality of second anti-collision protection plates 40 are arranged at both ends of the conveying body 43. A second information display component 45 for information display is arranged on the side of the second anti-collision protection plate 40 away from the adjustable storage plate 42. The second information display component 45 is a handwriting fluorescent board.

[0029] See also Figure 1 , Figure 3 and Figure 4 In one embodiment, in order to make the use of the storage component 3 more reliable, in this embodiment, preferably, the storage component 3 includes a storage box 33, a second inclined conveying plate 32 is arranged inside the storage box 33, a discharge hole 36 is opened at one end of the storage box 33, an adjustable blocking plate 35 for blocking the discharge hole 36 is slidably connected to one end of the storage box 33, and a plurality of fourth retractable driving members 34 for adjusting the height of the adjustable blocking plate 35 are arranged on the top of the storage box 33, and the fourth retractable driving member 34 is a hydraulic cylinder, and a first inclined conveying plate 31 is arranged below the second inclined conveying plate 32, and a storage hole 30 corresponding to the first inclined conveying plate 31 is opened at one end of the storage box 33 away from the discharge hole 36, and a plurality of detachable fixing seats 37 corresponding to the storage box 33 are arranged at intervals on the lower surface of the first inclined conveying plate 31, and the detachable fixing seats 37 are fixedly connected to the first inclined conveying plate 31.

[0030] In another embodiment, the storage assembly 3 includes a storage box 33, a second inclined feed plate 32 is arranged inside the storage box 33, a discharge hole 36 is opened at one end of the storage box 33, an adjustable blocking plate 35 for blocking the discharge hole 36 is slidably connected to one end of the storage box 33, a plurality of fourth retractable driving members 34 for adjusting the height of the adjustable blocking plate 35 are arranged on the top of the storage box 33, the fourth retractable driving member 34 is a cylinder, a first inclined feed plate 31 is arranged below the second inclined feed plate 32, a storage hole 30 corresponding to the first inclined feed plate 31 is opened at one end of the storage box 33 away from the discharge hole 36, a plurality of detachable fixing seats 37 corresponding to the storage box 33 are arranged at intervals on the lower surface of the first inclined feed plate 31, and the detachable fixing seats 37 are fixedly connected to the first inclined feed plate 31.

[0031] See also Figure 1 and Figure 2 In one embodiment, in order to make the use of the warning component 2 more reliable, in this embodiment, preferably, the warning component 2 includes a supporting metal seat 21, and a plurality of third retractable driving members 295 are arranged at both ends of the lower surface of the supporting metal seat 21, and the third retractable driving member 295 is a hydraulic cylinder. A plurality of supporting metal blocks 291 for supporting the storage box 33 are arranged inside the supporting metal seat 21, and a plurality of limiting round balls 292 are arranged at both ends of the lower surface of the supporting metal block 291. A plurality of second retractable driving members 293 for driving the supporting metal block 291 to perform lateral reciprocating movement are arranged at one end of the supporting metal seat 21, and the second retractable driving member 293 is a hydraulic cylinder. A plurality of protective metal plates 294 for limiting and supporting the supporting metal block 291 are arranged on the top of the supporting metal seat 21, and the protective metal plates 294 are slidably connected to the supporting metal block 291, and the protective metal plates 294 are fixedly connected to the supporting metal seat 21;

[0032] See also Figure 2 In one embodiment, in order to make the functions of the warning component 2 more abundant, in this embodiment, preferably, a piston inflatable member 27 is provided at one end of the supporting metal seat 21 away from the second telescopic driving member 293, and a first telescopic driving member 28 is provided at the telescopic end of the piston inflatable member 27. The first telescopic driving member 28 is a spring. When in use, the telescopic end of the piston inflatable member 27 is driven to extend by the first telescopic driving member 28. A single-way exhaust pipe 26 is provided at one end of the piston inflatable member 27 away from the supporting metal block 291, and a single-way sound tube 22 is provided on one side of the single-way exhaust pipe 26. A hollow sound-enhancing column 23 corresponding to the single-way sound tube 22 is provided on the lower surface of the supporting metal seat 21, and a plurality of sound-enhancing tubes 20 are arranged in a circular array on the side of the hollow sound-enhancing column 23;

[0033] See also Figure 2 In one embodiment, in order to make the function of the warning component 2 richer, in this embodiment, preferably, the sound amplifier 20 is arranged to penetrate the side wall of the hollow sound amplifier column 23, the sound amplifier 20 is fixedly connected to the hollow sound amplifier column 23, and a plurality of first anti-collision protection plates 24 are arranged at both ends of the lower surface of the supporting metal seat 21, the first anti-collision protection plates 24 are fixedly connected to the supporting metal seat 21, and a plurality of first information display pieces 25 for displaying information are arranged at the bottom of the side of the first anti-collision protection plate 24, the first information display piece 25 is a handwriting fluorescent board, and the first information display piece 25 is fixedly connected to the first anti-collision protection plate 24.

[0034] In another embodiment, the warning component 2 includes a supporting metal seat 21, and a plurality of third retractable driving members 295 are arranged at both ends of the lower surface of the supporting metal seat 21, and the third retractable driving member 295 is a cylinder. A plurality of supporting metal blocks 291 for supporting the storage box 33 are arranged inside the supporting metal seat 21, and a plurality of limiting round balls 292 are arranged at both ends of the lower surface of the supporting metal block 291. One end of the supporting metal seat 21 is provided with a plurality of second retractable driving members 293 for driving the supporting metal block 291 to perform lateral reciprocating movement, and the second retractable driving member 293 is a cylinder. A plurality of protective metal plates 294 for limiting and supporting the supporting metal block 291 are arranged on the top of the supporting metal seat 21, and the protective metal plates 294 are slidably connected to the supporting metal block 291, and the protective metal plates 294 are fixedly connected to the supporting metal seat 21. A piston inflatable member 27 is arranged at one end of the supporting metal seat 21 away from the second retractable driving member 293, and the telescopic end of the piston inflatable member 27 is arranged There is a first telescopic driving member 28, which is a metal spring. When in use, the telescopic end of the piston inflatable member 27 is driven to extend by the first telescopic driving member 28. The end of the piston inflatable member 27 away from the supporting metal block 291 is provided with a single-way exhaust pipe 26, and a single-way sound pipe 22 is provided on one side of the single-way exhaust pipe 26. The lower surface of the supporting metal seat 21 is provided with a hollow sound-enhancing column 23 corresponding to the single-way sound pipe 22, and a plurality of sound-enhancing tubes 22 are arranged in a circular array on the side of the hollow sound-enhancing column 23. 0, the sound-amplifying tube 20 passes through the side wall of the hollow sound-amplifying column 23, the sound-amplifying tube 20 is fixedly connected to the hollow sound-amplifying column 23, a plurality of first anti-collision protection plates 24 are arranged at both ends of the lower surface of the supporting metal seat 21, the first anti-collision protection plates 24 are fixedly connected to the supporting metal seat 21, a plurality of first information display pieces 25 for displaying information are arranged at the bottom of the side of the first anti-collision protection plate 24, the first information display piece 25 is a liquid crystal screen, and the first information display piece 25 is fixedly connected to the first anti-collision protection plate 24.

[0035] The working principle and use process of the present invention are as follows: when in use, the conveying mechanism is placed near the stacked construction pipes, and then the first inclined conveying plate 31 is taken out, and then the detachable fixing seat 37 is inserted into the end of the storage box 33 close to the pipe, so as to realize the rapid installation and fixation of the first inclined conveying plate 31, and then the third retractable driving member 295 is controlled to extend, so as to adjust the height of the first inclined conveying plate 31 according to the stacking height of the pipes;

[0036] Then, the second retractable driving member 293 is controlled to continuously extend and contract, so that the storage box 33 is moved back and forth laterally, and the first inclined material conveying plate 31 is moved back and forth laterally. The pipes located above the first inclined material conveying plate 31 are shoveled down by the reciprocating transverse movement of the first inclined material conveying plate 31. At this time, the pipes roll down along the first inclined material conveying plate 31 into the storage box 33, and the storage box 33 is used to store the pipes. The storage box 33 is also used to reciprocate laterally to arrange the pipes so that the pipes are neatly arranged inside the storage box 33.

[0037] While the storage box 33 is moving back and forth laterally, the piston inflatable member 27 is continuously extended and contracted. When the piston inflatable member 27 is extended, it extracts air through the single-way exhaust pipe 26. When the piston inflatable member 27 is contracted, the gas inside it is discharged through the single-way sound pipe 22. The single-way sound pipe 22 emits a warning sound when exhausting. At this time, the hollow sound-amplifying column 23 and the sound-amplifying pipe 20 cooperate with each other to amplify and diffuse the warning sound in all directions, thereby warning the staff to avoid it, making the function of the conveying mechanism more abundant.

[0038] Then, the fourth retractable driving member 34 is controlled to retract, so that the adjustable blocking plate 35 moves upward, so that the pipe in the storage box 33 falls. After the pipe falls, the fourth retractable driving member 34 is controlled to extend, so that the adjustable blocking plate 35 is reset, and the fallen single pipe falls on the upper side of the adjustable storage plate 42, and the adjustable storage plate 42 provides support for the pipe. Then, the fifth retractable driving member 44 is controlled to retract, and the second anti-collision protection plate 40 is used to limit the pipe to prevent the pipe from rolling down during transportation. Then, the pipe is transported to the target position by the transport vehicle 43, and then the fifth retractable driving member 44 is controlled to extend, so as to lift the pipe to the target height, thereby realizing rapid transportation of the pipe.

[0039] Thus, through the mutual cooperation of multiple structures, automatic loading and arrangement of pipes can be achieved, without the need for manual handling of the pipes, and without the need to purchase additional corresponding conveying equipment, thereby reducing the user's cost of use. The pipes are then conveyed by a single pipe, and can be conveyed to different positions and different heights according to conveying requirements, so that the conveying effect of the conveying mechanism is better. Secondly, the present invention has anti-collision and warning functions, which enriches the functions of the conveying mechanism. In addition, the present invention has a simple structure, is easy to use, and is worthy of promotion and use.

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A stacked single-tube conveying mechanism for building pipes, comprising a bearing metal plate, characterized in that: A conveying assembly for conveying pipes is arranged at one end of the upper surface of the bearing metal plate, a storage assembly for arranging and storing pipes is arranged at one side of the conveying assembly, and a warning assembly for adjusting the height of the storage assembly and driving the storage assembly to move back and forth laterally is arranged at the other end of the upper surface of the bearing metal plate. The conveying assembly includes a conveying vehicle body, an adjustable storage plate is arranged above the conveying vehicle body, and a plurality of fifth adjustable height adjustment devices for adjusting the height of the adjustable storage plate are arranged at both ends of the conveying vehicle body. The retractable driving member is provided with an elastic anti-slip plate for noise reduction and shock absorption on the upper surface of the adjustable storage plate. The storage assembly includes a storage box, a second inclined material conveying plate is provided inside the storage box, a discharge hole is provided at one end of the storage box, and an adjustable blocking plate for blocking the discharge hole is slidably connected to one end of the storage box. A plurality of fourth retractable driving members for adjusting the height of the adjustable blocking plate are provided on the top of the storage box, a first inclined material conveying plate is provided below the second inclined material conveying plate, and the storage box is away from One end of the discharge hole is provided with a storage hole corresponding to the first inclined feed plate, and a plurality of detachable fixing seats corresponding to the storage box are arranged at intervals on the lower surface of the first inclined feed plate, and the detachable fixing seats are fixedly connected to the first inclined feed plate, and the warning component includes a supporting metal seat, and a plurality of third retractable driving members are arranged at both ends of the lower surface of the supporting metal seat, and a plurality of supporting metal blocks for supporting the storage box are arranged inside the supporting metal seat, and a plurality of limiting round beads are arranged at both ends of the lower surface of the supporting metal block. One end of the seat is provided with a plurality of second telescopic driving members for driving the supporting metal block to perform lateral reciprocating movement, the end of the supporting metal seat away from the second telescopic driving member is provided with a piston inflation member, the telescopic end of the piston inflation member is provided with a first telescopic driving member, the end of the piston inflation member away from the supporting metal block is provided with a single-way exhaust pipe, a single-way sound tube is provided on one side of the single-way exhaust pipe, a hollow sound-enhancing column corresponding to the single-way sound tube is provided on the lower surface of the supporting metal seat, and a plurality of sound-enhancing tubes are arranged in a circular array on the side of the hollow sound-enhancing column.

2. The stackable single-tube conveying mechanism for building pipes according to claim 1 is characterized in that: A plurality of second anti-collision protection plates are arranged at both ends of the transport vehicle body, and a second information display piece for displaying information is arranged on one side of the second anti-collision protection plate away from the adjustable storage plate.

3. The stackable building pipe single-tube conveying mechanism according to claim 2, characterized in that: A plurality of protective metal plates for limiting and supporting the supporting metal block are arranged on the top of the supporting metal seat. The protective metal plates are slidably connected to the supporting metal block and are fixedly connected to the supporting metal seat.

4. The stackable single-tube conveying mechanism for building pipes according to claim 3 is characterized in that: The sound-amplifying tube passes through the side wall of the hollow sound-amplifying column, and is fixedly connected to the hollow sound-amplifying column. A plurality of first anti-collision protection plates are arranged at both ends of the lower surface of the supporting metal seat.

5. The stackable single-tube conveying mechanism for building pipes according to claim 4 is characterized in that: The first anti-collision protection plate is fixedly connected to the supporting metal seat, and a plurality of first information display pieces for displaying information are arranged at the bottom of the side of the first anti-collision protection plate, and the first information display pieces are fixedly connected to the first anti-collision protection plate.

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