A roof photovoltaic panel transfer device

Abstract

The present application belongs to the technical field of lifting device, and particularly relates to a roof photovoltaic panel transfer device, which comprises a lifting ladder, the shape of the ladder beam of the lifting ladder is a "7" character, a lifting vehicle, the lifting vehicle is in rolling connection with the lifting ladder, corresponding track wheels are arranged on the lifting vehicle, the track wheels move along the upper surface of the ladder beam, a rope on a winch is hinged to the upper end of a swing arm through a pulley, the rope is pulled to rotate the swing arm through the traction force generated by the winch, there is a gap between the outer surface of a limiting cam and the lower surface of the ladder beam, when the rope is broken or loses the traction force, the swing arm is reversely rotated through a tension spring, and the outer surface of the limiting cam is in contact with the lower surface of the ladder beam. The photovoltaic module can be lifted to the roof, but not the wall surface, thereby avoiding that the worker needs to explore out of the wall surface during the process of unloading the photovoltaic module, and the safety during the operation process is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lifting devices, and particularly relates to a roof photovoltaic panel transfer device. BACKGROUND

[0002] The roof photovoltaic foundation is concrete counterweight, the photovoltaic assembly is full-paving form, each toll station has 3 buildings on average to install photovoltaic assemblies, the roof height is the lowest 4 meters, the highest 12 meters, the eaves exceeds the wall surface 1 meter, and it is a glazed tile eave with slope. The roof photovoltaic construction needs to hoist the material to the installation roof, and the main hoisted materials are concrete counterweight, support, photovoltaic assembly, inverter, photovoltaic wire and the like. Since the material arrival time is inconsistent, the hoisting cost is greatly increased.

[0003] The traditional material hoisting uses a truck crane, since the project has many construction points and the station installed capacity is small, and part of the construction station is on the highway, the cost is increased due to the high truck crane team cost. In order to reduce the construction cost, the photovoltaic assembly lifting device is made to replace the mechanical operation, and is used when the material cannot arrive at the same time as the concrete counterweight, thereby reducing the construction cost.

[0004] The patent application No. 201610964075.0 discloses a vacuum lifting device for photovoltaic panel, which uses a lifting trolley to lift and transport large-size photovoltaic panels, and not only increases the safety of lifting, but also effectively improves the lifting efficiency. However, the lifting trolley and the lifting device are connected through a steel wire rope, and if the steel wire rope is broken accidentally, the lifting trolley will fall, which has a great safety hazard. After being lifted to the roof, since the photovoltaic panel is on the outside of the wall, there is a certain difficulty and danger in taking down the photovoltaic panel. In addition, the photovoltaic panel is fixed by a suction cup, and there is great inconvenience in the loading and unloading process.

[0005] The patent application No. 202222025584.0 discloses a photovoltaic assembly lifting device, which realizes the overturning of the photovoltaic assembly to the roof by the overturning piece of the transfer piece, and further facilitates the taking down of the photovoltaic assembly from the transfer piece. However, the device lacks an automatic brake mechanism, and cannot avoid the falling of the lifting trolley caused by the breaking of the rope, which also has a safety hazard. SUMMARY

[0006] In view of the above technical problems, the application provides a roof photovoltaic panel transfer device, and the lifting device is provided with an automatic brake mechanism, which can avoid the falling of the lifting trolley caused by the breaking of the rope, and effectively improves the safety.

[0007] In order to solve the above technical problems, the application adopts the following technical scheme:

[0008] A roof photovoltaic panel transfer device comprises:

[0009] The lifting ladder is provided with a lifting car, and the lifting car is provided with a corresponding track wheel which moves along the upper surface of the ladder beam.

[0010] The lifting car is provided with a corresponding track wheel which moves along the upper surface of the ladder beam.

[0011] The lifting device comprises a winch and a pulley, and the pulley is arranged on the lifting ladder.

[0012] The lifting car is provided with a corresponding track wheel which moves along the upper surface of the ladder beam.

[0013] The automatic brake mechanism comprises a swing arm, a limiting cam and a tension spring.

[0014] The rope on the winch is connected to the upper end of the swing arm through the pulley, and the swing arm is rotated by the traction force generated by the winch.

[0015] The rear end of the lifting car is fixedly connected with a baffle.

[0016] The front end of the lifting car is hingedly connected with a pressing plate.

[0017] The middle part of the pressing plate is hingedly connected with the lifting car.

[0018] The upper end of the lifting ladder is fixedly connected with a limiting push plate.

[0019] One of the two limiting rods is a driving rod which is rotatably connected with the fixed plate.

[0020] The driving mechanism comprises a driving rack fixed at the lower end of the lifting ladder and a driving gear fixedly connected with the driving rod and capable of engaging with the driving rack.

[0021] The support rod is fixedly connected or hingedly connected with the lifting ladder at one end.

[0022] Compared with the prior art, the present application has the beneficial effects that:

[0023] The automatic brake mechanism is provided, which is not triggered in the normal traction state, and when the rope is broken or loses traction, the swing arm is driven to rotate reversely by the tension spring, so that the outer surface of the limiting cam contacts with the lower surface of the ladder beam, thereby playing a role of brake.

[0024] The counterweight is fixed at the protruding part of the limiting cam, and the protruding part of the limiting cam is downward under the action of gravity, so as to ensure that the position where the limiting cam contacts with the lower surface of the ladder beam is not the highest point of the cam in the initial braking process.

[0025] The pressing plate is provided, and the fixing between the lifting vehicle and the photovoltaic module is realized through the cooperation of the pressing plate and the supporting air bag. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a perspective view of one direction of the present application;

[0027] Figure 2 is a front view of the present application;

[0028] Figure 3 is Figure 2 is a partial enlarged view of A in the figure;

[0029] Figure 4 is a rear view of the present application;

[0030] Figure 5 is Figure 4 is a partial enlarged view of B in the figure;

[0031] Figure 6 is a perspective view of another direction of the application;

[0032] Figure 7 is Figure 6 is a partial enlarged view at C in the middle of the figure;

[0033] Figure 8 is a structural schematic view of the lifting vehicle in one direction of the application;

[0034] Figure 9 is a structural schematic view of the lifting vehicle in another direction of the application;

[0035] Figure 10 is a schematic view of the use of the application;

[0036] Wherein: 1 is a lifting ladder, 100 is a ladder beam, 2 is a lifting vehicle, 200 is a limiting protrusion, 3 is a track wheel, 4 is a lifting device, 400 is a winch, 401 is a pulley, 402 is a rope, 5 is a limiting rod, 500 is a driving rod, 6 is a fixed plate, 7 is an automatic brake mechanism, 700 is a rocker arm, 701 is a limiting cam, 702 is a tension spring, 703 is a counterweight, 8 is a baffle, 9 is a supporting air bag, 10 is a pressing plate, 11 is a hinged shaft, 12 is a torsion spring, 13 is a limiting push plate, 14 is a connecting column, 15 is a first connecting rod, 16 is a second connecting rod, 17 is a third connecting rod, 18 is a driving mechanism, 180 is a driving rack, 181 is a driving gear, 19 is a supporting rod, and 20 is a photovoltaic module. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the application, not all.

[0038] A roof photovoltaic panel transfer device includes a lifting ladder 1, a lifting vehicle 2, a lifting device 4, a limiting rod 5, and an automatic brake mechanism 7.

[0039] The lifting vehicle 2 is rollingly connected with the lifting ladder 1, and the lifting vehicle 2 is provided with corresponding track wheels 3 which move along the upper surface of the ladder beam 100; the lifting device 4 includes a winch 400 and a pulley 401, the pulley 401 is arranged on the lifting ladder 1; the shell of the winch 400 is fixedly connected with the lifting ladder 1. The photovoltaic module 20 is placed on the lifting vehicle 2 and can be fixed between the two by binding.

[0040] The shape of the ladder beam 100 in the lifting ladder 1 is "7" shape; when it is erected on the roof, the upper end of the ladder beam 100 is located on the roof (i.e. in the wall surface); after the lifting vehicle 2 moves along the ladder beam 100 to the upper end of the lifting ladder 1 (the upper end of the ladder beam 100) with the photovoltaic module 20, the photovoltaic module 20 is also located in the wall surface, i.e. when the photovoltaic module 20 is unloaded, the worker does not need to explore out of the wall surface.

[0041] The limiting rods 5 are provided with two, which are respectively arranged on the left and right sides of the front end of the lifting vehicle 2, and the lifting vehicle 2 is provided with corresponding fixed plates 6; the ladder beam 100 is located between the track wheels 3 and the limiting rods 5, so that the lifting vehicle 2 is "clamped" on the ladder beam 100.

[0042] The automatic brake mechanism 7 includes a swing arm, a limiting cam 701 and a tension spring 702; the middle part of the swing arm is hinged to the lifting vehicle 2, and the two ends of the tension spring 702 are respectively fixedly connected or hinged to the upper end of the swing arm and the vehicle body; the limiting cam 701 is rotationally connected to the lower end of the swing arm; the protruding part of the limiting cam 701 is fixedly provided with a counterweight 703, which makes the protruding part of the limiting cam 701 downward under the action of gravity.

[0043] The automatic brake mechanism 7 is triggered only in the case of losing traction or the rope 402 being broken. In the normal lifting process, the rope 402 can be wound on the drum of the winch 400 by the winch 400; since the rope 402 on the winch 400 passes through the pulley 401 and is hinged to the upper end of the swing arm, the traction force generated by the winch 400 makes the rope 402 pull the swing arm to rotate, the tension spring 702 is stretched to generate elastic potential energy, and the outer surface of the limiting cam 701 and the lower surface of the ladder beam 100 are spaced apart. At this time, as the rope 402 is continuously wound on the drum, the lifting vehicle 2 moves to the upper end of the ladder beam 100; then, the worker takes out the photovoltaic module 20 on the lifting vehicle 2; finally, the drum reversely rotates to release the rope 402, and the lifting vehicle 2 moves downward along the ladder beam 100 under the action of gravity. During the upward or downward movement of the lifting vehicle 2, the rope 402 is in a tensioned state, so the automatic brake mechanism 7 is not triggered.

[0044] When the rope 402 is broken or loses traction, the elastic potential energy released by the tension spring 702 drives the swing arm to rotate in the opposite direction, so that the outer surface of the limiting cam 701 contacts the lower surface of the ladder beam 100. At the same time, due to the arrangement of the counterweight 703, the protruding part of the limiting cam 701 is downward under the action of gravity. During the initial braking process, the position where the limiting cam 701 contacts the lower surface of the ladder beam 100 is not the highest point of the cam; when the lifting vehicle 2 continues to move, the limiting cam 701 is rotated by the friction force between the limiting cam 701 and the lower surface of the ladder beam 100, and the highest point of the limiting cam 701 gradually contacts the ladder beam 100, so that the distance between the limiting cam 701 and the track wheel 3 is shortened, that is, the ladder beam 100 is gradually clamped by the limiting cam 701 and the track wheel 3, limiting the movement of the lifting vehicle 2. The above structure can effectively play a protective role.

[0045] Further, the rear end of the lifting vehicle 2 is fixedly connected with a baffle 8; the baffle 8 is fixedly connected with a supporting air bag 9. The lower edge of the photovoltaic module 20 can be supported on the supporting air bag 9, and the supporting air bag 9 can play a sliding role, avoiding the shaking of the photovoltaic module 20 during the upward movement of the lifting vehicle 2.

[0046] Further, the front end of the lifting vehicle 2 is hingedly connected with a pressing plate 10, and the pressing plate 10 is provided with a corresponding hinge shaft 11. Specifically, the hinge shaft 11 is fixedly connected with the pressing plate 10, and the hinge shaft 11 is hingedly connected with the lifting vehicle 2. A torsion spring 12 is arranged between the pressing plate 10 and the lifting vehicle 2. The pressing plate 10 is used to press the photovoltaic module 20.

[0047] In use, the lower end of the photovoltaic module 20 is placed on the supporting air bag 9 first; the supporting air bag 9 is deformed under pressure to form a recess; then the pressing plate 10 is opened to place the photovoltaic module 20 on the lifting vehicle 2; finally, the pressing plate 10 is closed under the action of the torsion spring 12 to press the upper end of the photovoltaic module 20. Therefore, the supporting air bag 9 and the pressing plate 10 are matched up and down to quickly fix the photovoltaic module 20; the existing cumbersome binding by a binding belt can be omitted.

[0048] When the lifting vehicle 2 moves to the upper end of the ladder beam 100, the pressing plate 10 is opened manually, and the photovoltaic module 20 on the lifting vehicle 2 is taken out

[0049] Further, the middle part of the pressing plate 10 is hingedly connected with the lifting vehicle 2, and the upper end of the lifting ladder 1 is fixedly connected with a limiting push plate 13. This arrangement not only automatically opens the pressing plate 10 when the lifting vehicle 2 moves to the upper end of the ladder beam 100, but also limits the movement of the lifting vehicle 2 to avoid over-limiting movement.

[0050] When the lifting vehicle 2 moves to the upper end of the ladder beam 100, the lower part of the pressing plate 10 gradually approaches the limiting push plate 13, and finally contacts the limiting push plate 13, and the pressing plate 10 is rotated to be opened. At this time, the photovoltaic module 20 can be taken out. At the same time, the lifting vehicle 2 is blocked by the limiting push plate 13, and cannot continue to move.

[0051] Further, the connecting column 14 in contact with the limiting push plate 13 is arranged on the pressing plate 10, which is preferably in a cylindrical shape.

[0052] Further, one of the two limiting rods 5 is a driving rod 500, which is rotatably connected with the fixed plate 6. The other limiting rod 5 can be fixedly connected with the corresponding fixed plate 6.

[0053] The first connecting rod 15 is fixed on the driving rod 500, the second connecting rod 16 is fixed on the hinge shaft 11, and the third connecting rod 17 is hingedly connected between the first connecting rod 15 and the second connecting rod 16. The two ends of the third connecting rod 17 are hingedly connected with the two ends of the first connecting rod 15 and the second connecting rod 16, respectively. The first connecting rod 15, the second connecting rod 16, the third connecting rod 17 and the lifting vehicle 2 can form a parallelogram connecting rod mechanism. A driving mechanism 18 is arranged at the lower end of the lifting ladder 1, which can drive the driving rod 500 to rotate. The purpose is to automatically open the pressing plate 10 on the lifting vehicle 2 after the lifting vehicle 2 moves to the lower end of the lifting ladder 1, without manual opening, which is convenient for placing the photovoltaic module 20.

[0054] When the lifting vehicle 2 moves to the lower end of the lifting ladder 1, the driving mechanism 18 can drive the driving rod 500 and the first connecting rod 15 to rotate, and drive the second connecting rod 16 and the hinge shaft 11 fixedly connected therewith to rotate through the third connecting rod 17, so that the pressing plate 10 is rotated and opened.

[0055] Further, the driving mechanism 18 includes a driving rack 180 and a driving gear 181. The driving rack 180 is fixed at the lower end of the lifting ladder 1, and the driving gear 181 is fixedly connected with the driving rod 500 and can be engaged with the driving rack 180. When the lifting vehicle 2 moves to the lower end of the lifting ladder 1, the driving gear 181 gradually engages with the driving rack 180 and drives the driving gear 181 and the driving rod 500 to rotate, thereby realizing the rotation and opening of the pressing plate 10.

[0056] The maximum angle of opening and closing of the pressing plate 10 can be limited. Specifically, a limiting protrusion 200 can be arranged on the lifting vehicle 2, so as to avoid excessive opening or closing of the pressing plate 10. Therefore, when the driving gear 181 engages with the driving rack 180 to open the pressing plate 10 to the maximum angle, the pressing plate 10 cannot continue to open, which forms a resistance, so that the driving gear 181 cannot continue to rotate, thereby limiting the movement of the lifting vehicle 2, i.e. the lower limit.

[0057] Further, a support rod 19 is further included, one end of the support rod 19 is fixedly connected or hinged with the lifting ladder 1, and effective support can be formed.

[0058] The above only describes the preferred embodiments of the present application in detail, but the present application is not limited to the above embodiments.

Claims

1. A rooftop photovoltaic panel transfer device, characterized in that, include: The lifting ladder has a ladder beam shaped like the number "7". The lifting vehicle is rotatably connected to the lifting ladder. The lifting vehicle is equipped with corresponding track wheels, which move along the upper surface of the ladder beam. A lifting device, comprising a winch and a pulley, wherein the pulley is mounted on a lifting ladder; the housing of the winch is fixedly connected to the lifting ladder. Two limiting rods are provided, which are respectively set on the left and right sides of the front end of the lifting vehicle. The lifting vehicle is equipped with corresponding fixing plates; the ladder beam is located between the track wheel and the limiting rods. An automatic braking mechanism includes a swing arm, a limiting cam, and a tension spring; the middle part of the swing arm is hinged to the lifting vehicle, and the two ends of the tension spring are fixedly connected or hinged to the upper end of the swing arm and the vehicle body, respectively; the limiting cam is rotatably connected to the lower end of the swing arm; a counterweight is fixed at the protruding part of the limiting cam, so that the protruding part of the limiting cam faces downward under the action of gravity. The rope on the winch passes over the pulley and is hinged to the upper end of the swing arm. The traction force generated by the winch causes the rope to pull the swing arm to rotate. There is a gap between the outer surface of the limiting cam and the lower surface of the ladder beam. When the rope breaks or loses traction, the tension spring drives the swing arm to rotate in the opposite direction, so that the outer surface of the limiting cam contacts the lower surface of the ladder beam. The front end of the lifting vehicle is hinged to a pressure plate, and the pressure plate is provided with a corresponding hinge shaft; a torsion spring connects the pressure plate and the lifting vehicle; the middle part of the pressure plate is hinged to the lifting vehicle; a limit push plate is fixedly connected to the upper end of the lifting ladder; when the lifting vehicle moves and the pressure plate contacts the limit push plate, the pressure plate can be rotated and opened; and the movement of the lifting vehicle is restricted by the limit push plate. One of the two limiting rods is a driving rod, which is rotatably connected to the fixed plate; a first connecting rod is fixed on the driving rod, a second connecting rod is fixed on the hinge shaft, and a third connecting rod is hinged between the first connecting rod and the second connecting rod; the lower end of the lifting ladder is provided with a driving mechanism, which can drive the driving rod to rotate. The drive mechanism includes a drive rack and a drive gear. The drive rack is fixed to the lower end of the lifting ladder, and the drive gear is fixedly connected to the drive rod and can mesh with the drive rack.

2. The rooftop photovoltaic panel transfer device according to claim 1, characterized in that: A baffle is fixedly connected to the rear end of the lifting vehicle; a support airbag is fixedly connected to the baffle.

3. The rooftop photovoltaic panel transfer device according to claim 1, characterized in that: The pressure plate is provided with a connecting post that contacts the limiting push plate.

4. The rooftop photovoltaic panel transfer device according to claim 1, characterized in that: It also includes a support rod, one end of which is fixedly connected or hinged to the lifting ladder.

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