CN111649495A - A foldable solar collector - Google Patents

Abstract

The invention discloses a foldable solar heat collector, comprising a fixing frame, a plurality of heat collecting tubes are fixed in the fixing frame, a water tank is fixed at one end of the fixing frame, and a supporting frame is arranged under the fixing frame, so the A folding mechanism is arranged between the supporting frame and the fixing frame, and the folding mechanism includes two first connecting rods, and the lower ends of the two first connecting rods are respectively hinged with the two inner sides of the supporting frame close to the front end thereof. The upper end of the first connecting rod is hinged with a second connecting rod, the upper end of the second connecting rod is hinged with the inner side of the fixed frame close to its front end, and the outer side of the hinge joint of the first connecting rod and the second connecting rod A first threaded sleeve is hinged, a third connecting rod is hinged on the inner side of the support frame near its rear end, and a fourth connecting rod is hinged on the upper end of the third connecting rod. The present invention can adjust the inclination angle of the heat collecting pipe, improve the thermal efficiency of the heat collecting pipe, and can be folded for convenient transportation and carrying.

Description

A foldable solar collector

technical field

The invention relates to the technical field of solar thermal collectors, in particular to a foldable solar thermal collector.

Background technique

Photothermal utilization and photoelectric utilization of solar energy are relatively mature technologies. Now solar collectors have been widely used. For example, daily use of solar water heaters, solar water heaters are heating devices that convert sunlight energy into heat energy. Heating from low temperature to high temperature to meet people's use of hot water in life and production.

Existing solar water heaters usually use brackets to fix the collector tubes, and the brackets are designed with a certain inclination, so that the fixed collector tubes present a certain angle of illumination, but this bracket cannot adjust the angle in the later stage. It is well known that the incidence angle of the sun changes with the season. , the winter solstice should be the local geographic latitude Φ minus 23.5°, the summer solstice should be the local geographic latitude Φ plus 23.5°, the corresponding angle between the collector and the horizontal plane should be Φ+23.5° on the winter solstice, and Φ-23.5 on the summer solstice °. For example, the geographical latitude of Beijing is close to 40°, the angle between the collector and the horizontal plane is 40° in the spring and autumn equinoxes, 40°-23.5°=16.5° at the summer solstice, and 40°+23.5°=63.5° at the winter solstice. . The maximum value of the included angle change is 47°, so the angle of the existing bracket is not adjustable, which will lead to the failure to improve the thermal efficiency of the heat collecting tube. And the stand cannot be folded, which is inconvenient when transporting and carrying.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a foldable solar heat collector, which can adjust the inclination angle of the heat collecting tube, improve the thermal efficiency of the heat collecting tube, and can be folded, which is convenient for transportation and carrying, and solves the problems raised in the background art.

In order to achieve the above purpose, the present invention provides the following technical solutions: a foldable solar collector, comprising a fixing frame, a plurality of heat collecting tubes are fixed in the fixing frame, a water tank is fixed at one end of the fixing frame, and the fixing frame is A support frame is arranged below the frame, and a folding mechanism is arranged between the support frame and the fixed frame.

The folding mechanism includes two first connecting rods, the lower ends of the two first connecting rods are respectively hinged with the two inner sides of the support frame close to the front end thereof, and the upper ends of the first connecting rods are hinged with a second connecting rod, The upper end of the second connecting rod is hinged with the inner side of the fixed frame close to its front end, the outer side of the hinge of the first connecting rod and the second connecting rod is hinged with a first threaded sleeve, and the support frame is close to it. The inner side of the rear end is hinged with a third connecting rod, the upper end of the third connecting rod is hinged with a fourth connecting rod, and the upper end of the fourth connecting rod is hinged with the inner side of the fixing frame close to the rear end, and the third connecting rod is hinged. A second threaded sleeve is hinged on the outside of the hinge between the rod and the fourth connecting rod, and a rotating rod is sleeved between the first threaded sleeve and the second threaded sleeve, and the rotating rod is close to the first threaded sleeve. A section of the surface is provided with a first external thread threadedly connected to the first threaded sleeve, and another section of the surface of the rotating rod close to the second threaded sleeve is provided with a second external thread threadedly connected to the second threaded sleeve. One end of the rotating rod passing through the second threaded sleeve is jointly provided with a first driving mechanism for simultaneously driving the two rotating rods to rotate.

Preferably, the first driving mechanism includes an arc-shaped frame, and the arc-shaped frame rotates at one end of the two rotating rods passing through the second threaded sleeve, and the two rotating rods pass through the arc-shaped frame. A first gear is installed on both ends, a first motor is installed on one side of the middle of the arc-shaped frame, a second gear is installed on the shaft end of the first motor, and a second gear is installed between the first gear and the second gear drive connection.

Preferably, a runner is rotated on the surface of the arc-shaped frame on the upper side of the second gear, and a toothed belt is jointly driven between the first gear, the second gear and the runner.

Preferably, a cleaning mechanism is provided on the surface of the heat collecting tube.

Preferably, the cleaning mechanism includes a first fixing base and a second fixing base, the first fixing base is installed under the middle of one end of the fixing frame away from the water tank, and the second fixing base is installed near the fixing frame Below the middle of the other end of the water tank, a screw is rotated between the first fixed seat and the second fixed seat, a nut seat is threadedly connected to the surface of the screw, and a movable frame is fixed on the top of the nut seat. The sponge fixed on the inner hole wall of the moving frame is in sliding contact with the surface of each of the heat collecting tubes, and one end of the screw rod is provided with a second driving mechanism which drives the rotation of the sponge.

Preferably, the second driving mechanism includes a second motor, a fourth gear is installed at one end of the screw rod passing through the second fixing seat, and the second motor is installed on one side of the second fixing seat, A fifth gear meshed with the fourth gear is mounted on the shaft end of the second motor.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. In the present invention, by setting the folding mechanism, the folding mechanism can not only adjust the inclination angle of the fixed frame fixed with the heat collecting tube, so as to improve the thermal efficiency of the heat collecting tube, but also can fold the fixed frame and the supporting frame closer together when transporting and carrying, In order to reduce the volume and facilitate carrying and transportation.

2. In the present invention, by setting the cleaning mechanism, the surface of each heat collecting tube can be wiped and cleaned, which is beneficial for the heat collecting tube to make full use of light.

Description of drawings

1 is a schematic structural diagram of a fixed perspective view of a fixing frame and a water tank of the present invention;

2 is a schematic structural diagram of a perspective view of the distribution of the first external thread and the second external thread on the rotating rod of the present invention;

3 is a schematic structural diagram of a rotational perspective view of the screw rod and the first fixed seat according to the present invention;

4 is a schematic structural diagram of a perspective view of a first gear and a second gear transmission belt according to the present invention;

Fig. 5 is the structural schematic diagram of the top view of the fixing frame of the present invention;

6 is a schematic structural diagram of the present invention along the cross-sectional view A-A in FIG. 5;

Fig. 7 is the structural schematic diagram of the present invention along the B-B sectional view in Fig. 5;

Fig. 8 is the structural schematic diagram of the present invention along the C-C sectional view in Fig. 5;

FIG. 9 is a schematic structural diagram of a front cross-sectional view after the angle adjustment of the fixed frame of the present invention.

In the figure: 1-fixed frame, 2-heat collector tube, 3-water tank, 4-support frame, 5-first connecting rod, 6-second connecting rod, 7-first threaded sleeve, 8-third connecting rod, 9- Fourth connecting rod, 10- Second threaded sleeve, 11- Rod, 12- First external thread, 13- Second external thread, 14- Arc frame, 15- First gear, 16- First motor , 17-second gear, 18-gear belt, 19-first fixed seat, 20-second fixed seat, 21-screw, 22-nut seat, 23-moving frame, 24-second motor, 25-fourth Gear, 26-fifth gear, 27-runner.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIGS. 1 to 9, the present invention provides a technical solution: a foldable solar heat collector, comprising a fixing frame 1, a plurality of heat collecting tubes 2 are fixed in the fixing frame 1, and a water tank 3 is fixed at one end of the fixing frame 1 , a support frame 4 is arranged below the fixed frame 1 , and a folding mechanism is arranged between the support frame 4 and the fixed frame 1 .

The folding mechanism includes two first connecting rods 5, the lower ends of the two first connecting rods 5 are respectively hinged with the two inner sides of the support frame 4 near its front end, the upper end of the first connecting rod 5 is hinged with a second connecting rod 6, and the second connecting rod 5 is hinged. The upper end of the rod 6 is hinged with the inner side of the fixed frame 1 near its front end, the first threaded sleeve 7 is hinged on the outer side of the hinge between the first link 5 and the second link 6, and the inner side of the support frame 4 is hinged near its rear end with a third Connecting rod 8, the upper end of the third connecting rod 8 is hinged with a fourth connecting rod 9, the upper end of the fourth connecting rod 9 is hinged with the inner side of the fixed frame 1 near its rear end, and the third connecting rod 8 and the fourth connecting rod 9 are hinged A second threaded sleeve 10 is hinged on the outer side of the place, a rotating rod 11 is sleeved between the first threaded sleeve 7 and the second threaded sleeve 10, and a section of the surface of the rotating rod 11 close to the first threaded sleeve 7 is provided with the first threaded sleeve 7 The first external thread 12 is threadedly connected, and another section of the surface of the rotating rod 11 close to the second threaded sleeve 10 is provided with a second external thread 13 that is threadedly connected to the second threaded sleeve 10. The pitch of the second external thread 13 is greater than that of the first external thread. Therefore, when the rotation speed of the rotating rod 11 is constant, the displacement distance of the second threaded sleeve 10 along the second external thread 13 is much greater than the distance of the first threaded sleeve 7 along the position of the first external thread 12, and the two One end of the rotating rod 11 passing through the second threaded sleeve 10 is jointly provided with a first driving mechanism for simultaneously driving the two rotating rods 11 to rotate. When the first driving mechanism drives the two rotating rods 11 to rotate in the same direction, the displacement distance of the second threaded sleeve 10 along the second external thread 13 is much greater than the distance of the first threaded sleeve 7 along the position of the first external thread 12 , so the first threaded sleeve 7 and the second threaded sleeve 10 move closer, and then the fixed frame 1 will gradually rotate in the direction away from the water tank 3, so that the inclination angle of the heat collector tube 2 becomes larger at this time. On the contrary, when the first driving mechanism drives the two When the rotating rod 11 is reversed at the same time, the first threaded sleeve 7 and the second threaded sleeve 10 move away from each other, and then the fixed frame 1 will gradually rotate towards the direction of the water tank 3, so that the inclination angle of the heat collecting pipe 2 becomes smaller at this time. By adjusting, the inclination angle of the heat collecting tube 2 can be adjusted, thereby improving the thermal efficiency. At the same time, when transporting and carrying, the first driving mechanism drives the two rotating rods 11 to reverse at the same time, so that the fixed frame 1 and the supporting frame 4 are gradually brought closer together, folded up, and reduced in size, which is convenient for transportation and carrying.

The first driving mechanism includes an arc-shaped frame 14, and the arc-shaped frame 14 rotates at one end of the two rotating rods 11 passing through the second threaded sleeve 10, and one end of the two rotating rods 11 passing through the arc-shaped frame 14 is installed with a first gear 15. A first motor 16 is installed on the middle side of the arc frame 14. The first motor 16 adopts a low-speed motor and is powered by an external power supply. The shaft end of the first motor 16 is installed with a second gear 17. The first gear 15 and the second gear Transmission connection between 17.

Further, a runner 27 is rotated on the surface of the arc frame 14 on the upper side of the second gear 17, and a toothed belt 18 is jointly driven between the first gear 15, the second gear 17 and the runner 27. The cooperation of the two gears 17 , the toothed belt 18 and the rotating wheel 27 can drive the two rotating rods 11 to rotate in the same direction after the first motor 16 is started.

The surface of the heat collecting tube 2 is provided with a cleaning mechanism. The cleaning mechanism includes a first fixed seat 19 and a second fixed seat 20. The first fixed seat 19 is installed under the middle of one end of the fixed frame 1 away from the water tank 3, and the second fixed seat 20 is installed in the middle of the other end of the fixed frame 1 close to the water tank 3. Next, a screw 21 is rotated between the first fixing base 19 and the second fixing base 20, a nut base 22 is threadedly connected to the surface of the screw rod 21, a movable frame 23 is fixed on the upper surface of the nut base 22, and the inner hole wall of the movable frame 23 is fixed The sponge is in sliding contact with the surface of each heat collecting tube 2 , and one end of the screw 21 is provided with a second driving mechanism that drives it to rotate. The second driving mechanism drives the moving frame 23 to move, so as to wipe and clean each heat collecting tube 2 .

The second driving mechanism includes a second motor 24 , a fourth gear 25 is installed at one end of the screw 21 passing through the second fixing base 20 , the second motor 24 is installed on one side of the second fixing base 20 , and the shaft end of the second motor 24 A fifth gear 26 meshing with the fourth gear 25 is installed. When the second motor 24 rotates forward, the fourth gear 25 is driven to reverse, so the moving frame 23 moves in a direction away from the water tank 3, and vice versa when the second motor 24 When it is reversed, the fourth gear 25 is driven to rotate in a forward direction, so the moving frame 23 moves toward the direction close to the water tank 3 . By doing this, the heat collecting tube 2 is wiped and cleaned, and the heat collecting tube 2 is better exposed to light.

In this embodiment, the fit for rotation can be realized by using a bearing. For example, the arc-shaped frame 14 rotates at the end of the two rotating rods 11 passing through the second threaded sleeve 10. By embedding a bearing on the arc-shaped frame 14, the outer walls of the two rotating rods 11 are fixed with the shaft center of the bearing, so that two rotations can be realized. The rod 11 moves in a rotational movement on the arc frame 14 .

Working principle: When the foldable solar collector is installed, the first motor 16 rotates clockwise, the first gear 15 and the second gear 17 rotate clockwise, and the two rotating rods 11 rotate clockwise. The displacement distance of the thread 13 is much larger than the distance of the first threaded sleeve 7 along the position of the first external thread 12, so the first threaded sleeve 7 and the second threaded sleeve 10 move closer, and then the fixing frame 1 will gradually move away from The direction of the water tank 3 is rotated, so that the inclination angle of the heat collecting tube 2 becomes larger at this time, and it can be adjusted to a suitable angle to stop.

When the foldable solar collector is transported, the first motor 16 is reversed, and the two rotating rods 11 are reversed, so the first threaded sleeve 7 and the second threaded sleeve 10 move away from each other, and then the fixed frame 1 will gradually move toward the water tank 3. The direction is rotated, so that the inclination angle of the heat collecting tube 2 becomes smaller at this time, until the fixing frame 1 and the supporting frame 4 are gradually approached, folded up, and the volume is reduced, which is convenient for transportation and carrying.

When the foldable solar collector is cleaned, when the second motor 24 rotates in the clockwise direction, the fourth gear 25 is driven to reverse, so the moving frame 23 moves in the direction away from the water tank 3. On the contrary, when the second motor 24 rotates in the reverse direction, it drives the The four gears 25 rotate in a clockwise direction, so that the moving frame 23 moves toward the direction close to the water tank 3 . By doing so, the heat collecting tubes 2 are wiped and cleaned, and the heat collecting tubes 2 can be better exposed to light.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a foldable solar collector, includes fixed frame (1), fixed frame (1) internal fixation has a plurality of thermal-collecting tubes (2), the one end of fixed frame (1) is fixed with water tank (3), its characterized in that: a supporting frame (4) is arranged below the fixed frame (1), and a folding mechanism is arranged between the supporting frame (4) and the fixed frame (1);

the folding mechanism comprises two first connecting rods (5), the lower ends of the two first connecting rods (5) are respectively hinged with two inner sides of the supporting frame (4) close to the front end of the supporting frame, the upper end of each first connecting rod (5) is hinged with a second connecting rod (6), the upper end of each second connecting rod (6) is hinged with the inner side of the fixed frame (1) close to the front end of the fixed frame, the outer sides of the hinged parts of the first connecting rods (5) and the second connecting rods (6) are hinged with a first threaded sleeve (7), the inner side of the supporting frame (4) close to the rear end of the supporting frame is hinged with a third connecting rod (8), the upper end of the third connecting rod (8) is hinged with a fourth connecting rod (9), the upper end of the fourth connecting rod (9) is hinged with the inner side of the fixed frame (1) close to the rear end of the fixed frame, the outer sides of the hinged parts of the third connecting rod (8) and the fourth connecting rod, first thread bush (7) with the cover is equipped with bull stick (11) between second thread bush (10), bull stick (11) be close to one section surface of first thread bush (7) be provided with first thread bush (7) threaded connection's first external screw thread (12), bull stick (11) be close to another section surface of second thread bush (10) be provided with second thread bush (10) threaded connection's second external screw thread (13), two bull stick (11) are worn out the one end of second thread bush (10) is provided with jointly and drives two simultaneously bull stick (11) pivoted first actuating mechanism.

2. The folding solar collector according to claim 1, wherein: first actuating mechanism includes arc frame (14), arc frame (14) rotate two bull stick (11) are worn out the one end of second thread bush (10), two bull stick (11) are worn out first gear (15) are all installed to the one end of arc frame (14), first motor (16) are installed to one side in the middle of arc frame (14), second gear (17) are installed to the axle head of first motor (16), first gear (15) with the transmission is connected between second gear (17).

3. The folding solar collector according to claim 2, wherein: a rotating wheel (27) is arranged on the surface of the arc-shaped frame (14) on the upper side of the second gear (17) in a rotating mode, and a toothed belt (18) is jointly transmitted among the first gear (15), the second gear (17) and the rotating wheel (27).

4. The folding solar collector according to claim 1, wherein: the surface of the heat collecting pipe (2) is provided with a cleaning mechanism.

5. The folding solar collector according to claim 4, wherein: clean mechanism includes first fixing base (19) and second fixing base (20), first fixing base (19) are installed below the one end centre of keeping away from water tank (3) in fixed frame (1), second fixing base (20) are installed below fixed frame (1) is close to the other end centre of water tank (3), first fixing base (19) with it has screw rod (21) to rotate between second fixing base (20), the surface threaded connection of screw rod (21) has nut seat (22), the higher authority of nut seat (22) is fixed with removes frame (23), remove the fixed sponge of frame (23) inside pore wall and each the surface sliding contact of thermal-collecting tube (2), the one end of screw rod (21) is provided with drives its pivoted second actuating mechanism.

6. The folding solar collector according to claim 5, wherein: the second driving mechanism comprises a second motor (24), the screw rod (21) penetrates out of one end of the second fixing seat (20) and is provided with a fourth gear (25), the second motor (24) is arranged on one side of the second fixing seat (20), and a fifth gear (26) meshed with the fourth gear (25) is arranged at the shaft end of the second motor (24).

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