A roof photovoltaic direct current cable laying device

Abstract

This utility model discloses a top photovoltaic DC cable laying device, including a chassis, a lead screw, and a winding reel. A support is installed inside the chassis, and a worm gear is rotatably connected to the center of the support. The lead screw is positioned above the worm gear, and a displacement nut is connected to the lead screw. A load-bearing plate is installed on the outer wall of the displacement nut, and the winding reel is mounted on the load-bearing plate. An outer sleeve is rotatably connected to the top of the load-bearing plate, and an insertion cylinder is installed on the outer wall of the outer sleeve. A support handle is installed inside the insertion cylinder, and a collar is provided at the end of the support handle. This utility model, by providing a support handle on the winding reel and a collar at the end of the handle, enables rapid separation of the cable from the winding reel. Combined with the use of a conductor wheel, it facilitates rapid cable laying by workers, improving work efficiency, reducing labor intensity, and is convenient and easy to operate.

Description

Technical Field

[0001] This utility model relates to a cable laying device, and more particularly to a rooftop photovoltaic DC cable laying device, belonging to the field of cable laying technology. Background Technology

[0002] During the installation of DC cables for rooftop photovoltaic systems, the entire cable reel cannot be hoisted to the roof for cable laying due to the structural load-bearing capacity of the corrugated steel roof. Moreover, the amount of DC cables used in rooftop photovoltaic systems is extremely large. In actual construction, the cable reel needs to be placed on the ground, and one worker needs to be assigned to the area near the cable reel and another worker on the roof. The worker near the cable reel will unwind the cable from the reel, and then the worker on the roof will pull the cable upwards. This construction method is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a rooftop photovoltaic DC cable laying device to solve the problems of slow progress and high labor intensity in photovoltaic DC cable laying. It is convenient to use and easy to operate.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] A rooftop photovoltaic DC cable laying device includes a chassis, a lead screw, and a winding reel. A support frame is installed inside the chassis. A worm gear is rotatably connected to the center of the support frame. A lead screw is positioned above the worm gear. A displacement nut is fitted onto the lead screw. A load-bearing plate is installed on the outer wall of the displacement nut. A winding reel is mounted on the load-bearing plate. An outer sleeve is rotatably connected to the top of the load-bearing plate. An insert is installed on the outer wall of the outer sleeve, and a support handle is installed inside the insert. A collar is provided at the end of the support handle.

[0006] The outer wall of the chassis is evenly provided with four end plates, and the end plates are provided with positioning pins to fix the chassis to the ground.

[0007] A worm is connected to one side of the worm gear, and a motor is connected to the end of the worm.

[0008] The load-bearing plate is located in the middle of the displacement nut, and a reinforcing rod is provided between the bottom surface of the load-bearing plate and the outer wall of the displacement nut.

[0009] The left end of the support handle is inserted into the insert and fixed with bolts.

[0010] A hanger is installed on the photovoltaic frame on the right side of the chassis. A groove is cut into the top of the hanger and a bolt is installed in the groove. A wire pulley is installed at the bottom of the hanger. The cable on the winding spool passes through the collar and is wound on the wire pulley.

[0011] The positive and beneficial effects of this utility model are:

[0012] 1. This utility model features a load-bearing plate on the outside of the displacement sleeve, and a winding reel is placed on the load-bearing plate. During use, the winding reel can be lifted by the motor, shortening the distance between the roof and the ground, which is beneficial for workers to carry out cable laying construction.

[0013] 2. This utility model has an end plate on the outer wall of the chassis and a positioning pin inside the end plate, which can fix the chassis and ensure the stability and safety of construction.

[0014] 3. This utility model has an outer sleeve that is rotatably connected to the top of the winding reel, and a support handle with a lead screw is provided on the outside of the outer sleeve. During the wire feeding process, the cable can be quickly separated from the winding reel, which is convenient to use and easy to operate.

[0015] 4. This utility model, by setting guide wheels on the photovoltaic frame, can guide the cable to the construction site, thereby achieving precise cable laying, improving work efficiency, reducing construction difficulty, and making it easy to promote. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the load-bearing plate of this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the lead screw of this utility model;

[0019] Figure 4 This is a connection diagram of the worm gear of this utility model;

[0020] Figure 5 This is a schematic diagram of the displacement nut and the load-bearing plate of this utility model;

[0021] The components are: 1-chassis, 2-bracket, 3-end plate, 4-positioning pin, 5-lead screw, 6-motor, 7-worm gear, 8-worm wheel, 9-displacement nut, 10-bearing plate, 11-winding reel, 12-outer sleeve, 13-insertion sleeve, 14-handle, 15-ring, 16-hanger, 17-slot, 18-bolt, 19-guide wheel. Detailed Implementation

[0022] The present invention will be further explained and described below with reference to the accompanying drawings:

[0023] See the example. Figures 1-5A rooftop photovoltaic DC cable laying device includes a chassis 1, a lead screw 5, and a winding reel 11. A support 2 is provided inside the chassis 1. A worm gear 8 is rotatably connected to the center of the support 2. The lead screw 5 is provided above the worm gear 8. A displacement nut 9 is connected to the lead screw 5. A load-bearing plate 10 is provided on the outer wall of the displacement nut 9. The winding reel 11 is provided on the load-bearing plate 10. An outer sleeve 12 is rotatably connected to the top of the load-bearing plate 10. An insertion tube 13 is provided on the outer wall of the outer sleeve 12. A support handle 14 is provided inside the insertion tube 13. A collar 15 is provided at the end of the support handle 14.

[0024] Four end plates 3 are evenly arranged on the outer wall of the chassis 1, and positioning pins 4 are installed inside the end plates 3 to fix the chassis 1 to the ground.

[0025] A worm 8 is connected to one side of the worm gear 8, and a motor 6 is connected to the end of the worm 8.

[0026] The load-bearing plate 10 is located in the middle of the displacement nut 9, and a reinforcing rod is provided between the bottom surface of the load-bearing plate 10 and the outer wall of the displacement nut 9.

[0027] The left end of the support handle 14 is inserted into the insert 13 and fixed by bolts.

[0028] A hanger 16 is installed on the photovoltaic frame on the right side of the chassis 1. A groove 17 is cut out on the top of the hanger 16 and a bolt 18 is installed on the groove 17. A wire wheel 19 is installed at the bottom of the hanger 16. The cable on the winding reel 11 passes through the collar 15 and is wound on the wire wheel 19.

[0029] In the above description, the outer end of the support handle extends beyond the outside of the winding spool.

[0030] In the above description, the bottom of the worm gear, worm, and lead screw are located inside a housing, the motor is located outside the housing, and the output end of the motor extends into the housing and is connected to the worm. The other end of the worm is rotatably connected to the inner wall of the housing. The housing is located on a support, and under the action of the motor, it can drive the worm gear to rotate.

[0031] In the above description, the lead screw is located at the center of the top of the worm gear.

[0032] In the above description, the outer diameter of the load-bearing plate is larger than the inner diameter of the center hole of the winding plate.

[0033] In the above description, the inner diameter of the center hole of the winding spool is larger than the outer diameter of the displacement nut.

[0034] In the above description, the hanger is fixed to the photovoltaic support on the building roof. When in use, the groove on the top of the hanger is snapped into the photovoltaic support and secured with bolts for cable pulling.

[0035] In the above description, an inner sleeve is provided at the top of the winding spool, and the inner diameter of the inner sleeve is larger than the outer diameter of the displacement nut. An outer sleeve is rotatably connected to the outside of the inner sleeve.

[0036] Working principle:

[0037] In use, the winding reel is placed outside the lead screw and positioned on the load-bearing plate. Then, using the hanger, the base and winding reel are moved to the construction site, and the base is fixed with the positioning pin. Next, according to the laying position, the hanger is installed on the photovoltaic bracket. Then, the cable on the winding reel is passed through the collar and through the conductor wheel in sequence. Finally, under the action of the motor, the winding reel is moved upward. After completion, the roof workers can pull the cable to lay it out.

[0038] This invention uses a motor to move the load-bearing disc and winding disc upwards, thereby reducing the construction distance. By setting a support handle on the winding disc and a collar at the end of the support handle, the cable can be quickly separated from the winding disc. Combined with the use of the guide wheel, it is convenient for workers to quickly lay out the cable. It is easy to use and simple to operate.

Claims

1. A roof photovoltaic DC cable laying device, comprising a chassis (1), a lead screw (5) and a winding disc (11), characterized in that: The chassis (1) is provided with a support (2) inside. A worm gear (8) is rotatably connected to the center of the support (2). A lead screw (5) is provided above the worm gear (8). A displacement nut (9) is connected to the lead screw (5). A load-bearing plate (10) is provided on the outer wall of the displacement nut (9). A winding disc (11) is provided on the load-bearing plate (10). An outer sleeve (12) is rotatably connected to the top of the load-bearing plate (10). An insert (13) is provided on the outer wall of the outer sleeve (12). A support handle (14) is provided inside the insert (13). A collar (15) is provided at the end of the support handle (14).

2. A roof photovoltaic DC cable laying device according to claim 1, characterized in that: The outer wall of the chassis (1) is evenly provided with four end plates (3), and the end plates (3) are provided with positioning pins (4) so ​​that the chassis (1) is fixedly connected to the ground.

3. A roof photovoltaic DC cable laying device according to claim 1, characterized in that: A worm (7) is connected to one side of the worm wheel (8), and a motor (6) is connected to the end of the worm (7).

4. A roof photovoltaic DC cable laying device according to claim 1, characterized in that: The load-bearing plate (10) is located in the middle of the displacement nut (9), and a reinforcing rod is provided between the bottom surface of the load-bearing plate (10) and the outer wall of the displacement nut (9).

5. A roof photovoltaic DC cable laying device according to claim 1, characterized in that: The left end of the support (14) is inserted into the insert (13) and fixed by bolts.

6. A roof photovoltaic DC cable laying device according to claim 1, characterized in that: A hanger (16) is provided on the photovoltaic frame on the right side of the chassis (1). A groove (17) is dug on the top of the hanger (16), and a bolt (18) is provided on the groove (17). A wire wheel (19) is provided at the bottom of the hanger (16). The cable on the winding reel (11) passes through the collar (15) and is wound on the wire wheel (19).

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