CN211143299U - Steel-structure sun-proof canopy - Google Patents

Abstract

The utility model belongs to the technical field of the technique of canopy and specifically relates to a sun-proof canopy of steel construction is related to. The steel structure sun-proof canopy comprises a canopy frame, a canopy top, a supporting roof, sun-shading cloth and a driving mechanism, wherein the canopy top and the supporting roof are both arranged at the top end of the canopy frame, and the supporting roof is arranged below the canopy top; form the holding tank that is used for holding the puggaree between bearing top and the shed roof, the puggaree has relative first side and second side, the one end cell wall fixed connection of first side and holding tank, the mobilizable setting of second side of puggaree is on the bearing top, the second side of puggaree is in the complete expansion state when moving to the primary importance, and be complete draw in state when moving to the secondary importance, the second side of puggaree is used for moving between primary importance and secondary importance to adjust the sunshade area of puggaree. The utility model discloses has following effect: 1. the problem that pedestrians feel dazzling when passing through the rain shed and cause discomfort of eyes is successfully solved; 2. the user feels better.

Description

Steel-structure sun-proof canopy

Technical Field

The utility model belongs to the technical field of the technique of canopy and specifically relates to a sun-proof canopy of steel construction is related to.

Background

At present, a steel structure canopy is a building assembly which is built between two buildings, and is used for connecting the two buildings to serve as a passage canopy, or is arranged on a bicycle parking shed to shield the bicycle from wind and rain, or is arranged above an entrance door head or a top balcony of the buildings to shield the bicycle from rain and wind, and prevent falling objects from falling off at high altitude, so as to play a role in protection. Current steel construction canopy includes shed roof and rack usually, and the shed roof setting is on the top of rack, and the shed roof is the arch usually, and the shed roof is glass material usually, and glass is transparent and can reflect sunshine, and when sunshine is comparatively violent, can feel dazzling when the pedestrian passes through the canopy, causes the eye discomfort.

Disclosure of Invention

The utility model aims at providing a sun-proof canopy of steel construction, the technical problem that solve is: how to solve the pedestrian and can feel dazzling when the canopy, cause the uncomfortable problem of eye.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model discloses a sun-proof canopy of steel construction, including the rack, the shed roof, the bearing top, puggaree and actuating mechanism, the shed roof is the arch, and the shed roof includes first framework and first transparent filling block, and the first transparent filling block of polylith all sets up in first framework, and the bearing top includes the transparent filling block of second framework and second, and the transparent filling block of polylith second all sets up in the second framework, and shed roof and bearing top all set up on the rack top, and the bearing top sets up in the below of shed roof, and first transparent filling block is relative with the transparent filling block of second.

An accommodating groove for accommodating the sunshade cloth is formed between the bearing top and the shed top, the sunshade cloth is provided with a first side and a second side which are opposite, the first side is fixedly connected with the groove wall at one end of the accommodating groove, the second side of the sunshade cloth is movably arranged on the bearing top, the second side of the sunshade cloth is in a fully unfolded state when moving to the first position and is in a fully folded state when moving to the second position, and the second side of the sunshade cloth is used for moving between the first position and the second position so as to adjust the sunshade area of the sunshade cloth; the driving mechanism is arranged on the bearing top and used for driving the second side of the sunshade cloth to move.

Through adopting above-mentioned technical scheme, the puggaree has the effect of sunshade, and when sunshine was comparatively violent, accessible actuating mechanism made the puggaree expand to just can cover the sunshine that shines down from the first transparent filling block of rack, thereby sunshine can't shine the people under the canopy through the second transparent filling block who holds in the palm the top, so successfully solved the pedestrian and can feel dazzling when the canopy, led to the fact the uncomfortable problem of eye.

The utility model discloses further set up to: the driving mechanism comprises a first screw rod, a first nut seat and a first limiting groove, the second side of the driving mechanism is fixedly connected with the first nut seat, the first nut seat is sleeved on the first screw rod, the first limiting groove is arranged on the bearing top, and the first limiting groove is used for limiting the first nut seat so that the first nut seat moves along the length direction of the first screw rod when the first screw rod is driven to rotate; the first nut seat is used for driving the second side of the sunshade cloth to move between the first position and the second position when moving.

Through adopting above-mentioned technical scheme, when first lead screw rotated, first nut seat can be followed the length direction motion of first lead screw to the motion that the second side of puggaree can be corresponding, because the relative first side of puggaree and the one end cell wall fixed connection of holding tank, so when the second side motion of puggaree, the puggaree can corresponding expansion or draw in, thereby the sunshade area of puggaree obtains changing.

The utility model discloses further set up to: the driving mechanism comprises a second lead screw, a second nut seat and a second limiting groove, the second side of the sunshade cloth comprises a first end and a second end which are opposite, the first lead screw is opposite to the second lead screw, the second limiting groove is arranged on the bearing top, the first end is fixedly connected with the first nut seat, the second end is fixedly connected with the second nut seat, the second nut seat is sleeved on the second lead screw, and the second limiting groove is used for limiting the second nut seat so that the second nut seat moves along the length direction of the second lead screw when the second lead screw rotates; the first screw rod is used for driving the second screw rod to rotate through the linkage mechanism when rotating.

Through adopting above-mentioned technical scheme, when first lead screw rotated, the second lead screw also can corresponding rotation under the effect of interlock mechanism to the first end and the second end of the second side of puggaree can move between primary importance and second place simultaneously, and the motion of puggaree is comparatively smooth and easy.

The utility model discloses further set up to: the linkage mechanism comprises a linkage rod, a first gear and a second gear, the first gear and the second gear are respectively fixedly sleeved at two opposite ends of the linkage rod, a third gear is fixedly sleeved on the first screw rod and meshed with the first gear, a fourth gear is fixedly sleeved on the second screw rod and meshed with the second gear, and the linkage rod is perpendicular to the first screw rod and the second screw rod.

Through adopting above-mentioned technical scheme, can drive the third gear rotation when first lead screw rotates to also can rotate with the first gear of third gear engagement, thereby the trace rotates and drives the second gear rotation, and is corresponding, can drive the fourth gear rotation of meshing with it when the second gear rotates, thereby the second lead screw can rotate, so under the effect of interlock mechanism, the second lead screw also can rotate simultaneously when first lead screw rotates.

The utility model discloses further set up to: the driving mechanism further comprises a driving rod, the shed frame is provided with a plurality of supporting rods, the driving rod is vertically arranged on the supporting rods and is perpendicular to the first screw rod, a fifth gear is arranged at the end of the driving rod, and the fifth gear is meshed with the third gear.

Through adopting above-mentioned technical scheme, can drive the fifth gear rotation when the actuating lever rotates, thereby also can corresponding rotation with fifth gear engagement's third gear, because the third gear sets up on first lead screw, so first lead screw also can corresponding rotation, so only need the drive actuating lever to rotate, first lead screw just can corresponding rotation, because the vertical setting of actuating lever is on the bracing piece, so the user can be convenient operate the actuating lever in the canopy, so make the sunshade area change of puggaree, so the user can be convenient adjust puggaree.

The utility model discloses further set up to: the reversing mechanism comprises a reversing rod, the reversing rod is arranged on the supporting rod and perpendicular to the driving rod, the rotating handle is arranged on the reversing rod, a sixth gear is arranged at one end, deviating from the fifth gear, of the driving rod, a seventh gear is arranged at one end, deviating from the rotating handle, of the reversing rod, and the sixth gear is meshed with the seventh gear.

Through adopting above-mentioned technical scheme, only need rotate the rotation handle, the reversing lever just can corresponding rotation, thereby seventh gear revolve and drive sixth gear revolve, thereby the actuating lever rotates, so only need rotate the rotation handle just can make the actuating lever rotate, because reversing lever is perpendicular with the actuating lever, so the user can do benefit to the direction of operation through rotating the rotation handle, in order to adjust the puggaree, rotate the handle simultaneously and increased user's force application area, user's sense of use is better.

The utility model discloses further set up to: the both sides of bearing the top all have first connecting portion, and the both sides of shed roof all have the second connecting portion, and first connecting portion and second connecting portion pass through bolted connection.

Through adopting above-mentioned technical scheme, bolted connection is passed through with the bearing top to the shed roof, so the shed roof can be dismantled relatively with the bearing top, only needs use tools to unscrew the bolt and just enables shed roof and bearing top relative separation, because the holding tank of puggaree setting between shed roof and bearing top, so when the puggaree damaged, only need tear out the shed roof, just can be convenient maintain the puggaree, the maintenance of puggaree is comparatively convenient.

The utility model discloses further set up to: and a cover edge is arranged on the second connecting part and used for abutting against the outer edge of the second connecting part when the shed roof is connected with the bearing roof.

Through adopting above-mentioned technical scheme, because be equipped with the lid limit on the second connecting portion, the lid limit offsets with the outer edge of second connecting portion when shed roof is connected with the bearing top, so the rainwater is difficult for permeating the holding tank from the seam of first connecting portion and second connecting portion junction during rainy to the inside puggaree of holding tank is difficult for suffering rainwater to corrode, and puggaree's life is longer.

To sum up, the utility model discloses a beneficial technological effect does:

1. the problem that pedestrians feel dazzling when passing through the rain shed and cause discomfort of eyes is successfully solved;

2. the movement of the sun-shading cloth is smoother;

3. the use feeling of the user is better;

4. the maintenance of the sun-shading cloth is more convenient;

5. the service life of the sunshade cloth is long.

Drawings

Fig. 1 is an exploded view of a steel structure sun protection canopy according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the awning cloth, the driving mechanism and the linkage mechanism of the steel-structured awning in fig. 1.

Fig. 3 is an enlarged schematic view at a in fig. 2.

In the figure, 1, a shed roof; 10. a first frame body; 11. a first transparent filling block; 12. a second connecting portion; 13. covering edges; 2. supporting a top; 20. a second frame body; 21. a second transparent filling block; 22. a first connection portion; 3. a drive mechanism; 30. a first lead screw; 31. a first nut seat; 32. a first limit groove; 33. a second lead screw; 34. a second nut seat; 35. a second limit groove; 36. a third gear; 37. a fourth gear; 38. a drive rod; 39. a fifth gear; 4. a sun-shading cloth; 40. a first side; 41. a second side; 411. a first end; 412. a second end; 5. a shed frame; 50. a support bar; 6. accommodating grooves; 7. a linkage mechanism; 70. a linkage rod; 71. a first gear; 72. a second gear; 8. rotating the handle; 9. a reversing mechanism; 90. a reversing lever; 91. a sixth gear; 92. a seventh gear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a sun-proof canopy of steel construction, including rack 5, shed roof 1, bearing top 2, puggaree 4 and actuating mechanism 3, shed roof 1 is the arch, and shed roof 1 includes first framework 10 and first transparent filling block 11, and the first transparent filling block 11 of polylith all sets up on first framework 10, and first transparent filling block 11 can be the glass material, can be the joint with the connected mode of first framework 10. The bearing top 2 comprises a second frame body 20 and a second transparent filling block 21, the second transparent filling blocks 21 are all arranged on the second frame body 20, the second transparent filling block 21 can be made of glass, and the second transparent filling block can be connected with the second frame body 20 in a clamping mode. Shed roof 1 and bearing roof 2 all set up on 5 tops of rack, and bearing roof 2 sets up in the below of shed roof 1, and bearing roof 2 can be bolted connection with the connected mode of rack 5, and rack 5 can have many spinal branchs vaulting pole 50, and bracing piece 50 can be square pole, and bracing piece 50 supports and plays the supporting role at ground to rack 5 just can stabilize and set up subaerial. Meanwhile, the first transparent filling block 11 and the second transparent filling block 21 are opposite, so that sunlight can be injected into the interior of the rainshed through the first transparent filling block 11 and the second transparent filling block 21.

Meanwhile, as shown in fig. 1, an accommodating groove 6 for accommodating the sunshade cloth 4 is formed between the supporting roof 2 and the shed roof 1, and the sunshade cloth 4 is a common cloth capable of shielding sunlight, so that many special requirements are not needed, and further description is omitted here. The sunshade cloth 4 has a first side 40 and a second side 41 opposite to each other, and the first side 40 is fixedly connected with a groove wall at one end of the accommodating groove 6, and the fixed connection mode can be through a screw connection. The second side 41 of the sunshade cloth 4 is movably arranged on the supporting top 2, the second side 41 of the sunshade cloth 4 is in a fully unfolded state when moving to the first position and is in a fully folded state when moving to the second position, and the second side 41 of the sunshade cloth 4 is used for moving between the first position and the second position to adjust the sunshade area of the sunshade cloth 4, so that a user can adjust the sunshade area of the sunshade cloth 4 according to the intensity of sunlight, and pedestrians can not feel dazzling when passing through a rainshed. The driving mechanism 3 is arranged on the bearing top 2, and the driving mechanism 3 is used for driving the second side 41 of the sun-shading cloth 4 to move.

As for the specific arrangement of the driving mechanism 3, as shown in fig. 1 and fig. 2, the driving mechanism 3 includes a first lead screw 30, a first nut seat 31 and a first limit groove 32, and the second side 41 of the sunshade cloth 4 is fixedly connected with the first nut seat 31, and the fixed connection may be through a screw connection. The first nut seat 31 is sleeved on the first lead screw 30, the first limit groove 32 is arranged on the bearing top 2, the first limit groove 32 is used for limiting the first nut seat 31, so that the first nut seat 31 moves along the length direction of the first lead screw 30 when the first lead screw 30 is driven to rotate, the first nut seat 31 can be a square nut seat, correspondingly, the first limit groove 32 can be a square limit groove, the first nut seat 31 can be arranged in the first limit groove 32, under the action of the first limit groove 32, the first nut seat 31 cannot synchronously rotate along with the first lead screw 30 when the first lead screw 30 rotates and only can move in the first limit groove 32, and therefore the first limit groove 32 realizes limiting the first nut seat 31, and the first nut seat 31 moves along the length direction of the first lead screw 30 when the first lead screw 30 is driven to rotate. Because the first nut seat 31 is fixedly connected with the second side 41 of the sunshade cloth 4, when the first nut seat 31 moves, the second side 41 of the sunshade cloth 4 correspondingly moves, and because the first side 40 of the sunshade cloth 4 is fixed on the groove wall of the accommodating groove 6, when the second side 41 of the sunshade cloth 4 moves, the sunshade cloth 4 correspondingly expands or contracts, when the sunshade cloth 4 is completely expanded, the first position is formed, and when the sunshade cloth 4 is completely contracted, the second position is formed, so that when the first nut seat 31 moves, the second side 41 of the sunshade cloth 4 can be driven to move between the first position and the second position, the sunshade cloth 4 correspondingly expands or contracts, and the sunshade area of the sunshade cloth 4 is changed.

Preferably, in order to make the second side 41 of the sunshade cloth 4 move smoothly, as shown in fig. 1, the steel structure sunscreen canopy further includes a linkage mechanism 7, the driving mechanism 3 further includes a second lead screw 33, a second nut seat 34 and a second limiting groove 35, the second side 41 of the sunshade cloth 4 includes a first end 411 and a second end 412 which are opposite, the first lead screw 30 and the second lead screw 33 are opposite, the second limiting groove 35 is disposed on the supporting roof 2, and the first limiting groove 32 and the second limiting groove 35 can be disposed on two opposite sides of the supporting roof 2, respectively. The first end 411 is fixedly connected to the first nut seat 31 by a screw, and the second end 412 is fixedly connected to the second nut seat 34 by a screw. The second nut seat 34 is sleeved on the second lead screw 33, and the second limiting groove 35 is used for limiting the second nut seat 34, so that the second nut seat 34 moves along the length direction of the second lead screw 33 when the second lead screw 33 rotates; the second nut seat 34 may be a square nut seat, correspondingly, the second limiting groove 35 may be a square limiting groove, the second nut seat 34 may be disposed inside the second limiting groove 35, and under the action of the second limiting groove 35, when the second lead screw 33 rotates, the second nut seat 34 cannot rotate synchronously with the second lead screw 33, and only can move inside the second limiting groove 35, so that the second limiting groove 35 realizes the limitation of the second nut seat 34, and the second nut seat 34 moves along the length direction of the second lead screw 33 when the second lead screw 33 is driven to rotate. When the first lead screw 30 is used for rotating, the linkage mechanism 7 drives the second lead screw 33 to rotate. Therefore, when the first lead screw 30 rotates, the second lead screw 33 also rotates correspondingly under the action of the linkage mechanism 7, so that the first end 411 and the second end 412 of the second side 41 of the sunshade cloth 4 move between the first position and the second position at the same time, and the movement of the sunshade cloth 4 is smoother.

As shown in fig. 2, the linkage mechanism 7 includes a linkage rod 70, a first gear 71 and a second gear 72, the first gear 71 and the second gear 72 are respectively fixedly sleeved at two opposite ends of the linkage rod 70, the fixed sleeving manner can be a key connection, the first lead screw 30 is fixedly sleeved with the third gear 36, the fixed sleeving manner can be a key connection, the first gear 71 and the third gear 36 are engaged, the second lead screw 33 is fixedly sleeved with the fourth gear 37, the fixed sleeving manner can be a key connection, the second gear 72 is engaged with the fourth gear 37, the first gear 71, the second gear 72, the third gear 36 and the fourth gear 37 can all be end face gears, and the linkage rod 70 is perpendicular to the first lead screw 30 and the second lead screw 33.

In order to make the user feel better, as shown in fig. 2 and 3, the driving mechanism 3 may further include a driving rod 38, the driving rod 38 is vertically disposed on the supporting rod 50, the driving rod 38 and the supporting rod 50 may be connected by a bearing, the driving rod 38 is a cylindrical rod, the driving rod 38 is perpendicular to the first lead screw 30, a fifth gear 39 is disposed at an end of the driving rod 38, the fifth gear 39 is also a face gear, and the fifth gear 39 is meshed with the third gear 36. Preferably, this steel construction sun-proof canopy still includes rotates handle 8 and reversing mechanism 9, reversing mechanism 9 includes reversing lever 90, reversing lever 90 sets up on bracing piece 50, the connected mode of reversing lever 90 and bracing piece 50 can be for being connected through the bearing, reversing lever 90 is perpendicular with actuating lever 38, it sets up on reversing lever 90 to rotate handle 8, the connected mode of rotating handle 8 and reversing lever 90 can be for the welding, the one end that actuating lever 38 deviates from fifth gear 39 is equipped with sixth gear 91, the one end that reversing lever 90 deviates from to rotate handle 8 is equipped with seventh gear 92, sixth gear 91 and the meshing of seventh gear 92, sixth gear 91 and seventh gear 92 are face gear. Therefore, only the rotating handle 8 needs to be rotated, the reversing rod 90 can correspondingly rotate, the seventh gear 92 rotates and drives the sixth gear 91 to rotate, the driving rod 38 rotates, the driving rod 38 can rotate only by rotating the rotating handle 8, and the reversing rod 90 is perpendicular to the driving rod 38, so that a user can rotate the rotating handle 8 in a direction beneficial to operation through rotation, the sun-shading cloth 4 is adjusted, meanwhile, the force application area of the user is increased by rotating the handle 8, and the use feeling of the user is better.

Finally, in order to make the maintenance of the sunshade cloth 4 more convenient, as shown in fig. 1, the two sides of the supporting roof 2 are both provided with first connecting parts 22, the first connecting parts 22 can be square, and can be integrally formed with the supporting roof 2, the two sides of the shed roof 1 are both provided with second connecting parts 12, the second connecting parts 12 can be square, and can be integrally formed with the shed roof 1, and the first connecting parts 22 and the second connecting parts 12 are connected through bolts. Shed roof 1 passes through bolted connection with bearing top 2, so shed roof 1 and bearing top 2 can be dismantled relatively, only need use tool to unscrew the bolt and just enable shed roof 1 and bearing top 2 phase separation, because sunshade cloth 4 sets up holding tank 6 between shed roof 1 and bearing top 2, so when sunshade cloth 4 damages, only need tear out shed roof 1, just can be convenient maintain sunshade cloth 4, sunshade cloth 4's maintenance is comparatively convenient. Preferably, be equipped with lid limit 13 on the second connecting portion 12, lid limit 13 is corresponding square, lid limit 13 can be for welding or integrated into one piece with the connected mode of second connecting portion 12, lid limit 13 is used for offseting with the outer edge of second connecting portion 12 when shed roof 1 is connected with bearing top 2, so the rainwater is difficult for seam infiltration holding tank 6 from first connecting portion 22 and the 12 junction of second connecting portion during rainy, thereby the inside puggaree 4 of holding tank 6 is difficult for suffering the rainwater erosion, puggaree 4's life is longer.

The implementation principle of the embodiment is as follows: when the sunlight is strong, the rotating handle 8 is rotated, so that the reversing lever 90 correspondingly rotates, the seventh gear 92 rotates and drives the sixth gear 91 to rotate, the driving lever 38 rotates, because the fifth gear 39 sleeved on the driving lever 38 is meshed with the third gear 36 sleeved on the first lead screw 30, the first lead screw 30 correspondingly rotates, when the first lead screw 30 rotates, the third gear 36 is driven to rotate, so that the first gear 71 meshed with the third gear 36 also rotates, so that the linkage lever 70 rotates to drive the second gear 72 to rotate, correspondingly, when the second gear 72 rotates, the fourth gear 37 meshed with the second lead screw is driven to rotate, so that the second lead screw 33 rotates, when the first lead screw 30 rotates, the second lead screw 33 also simultaneously rotates, when the first lead screw 30 and the second lead screw 33 simultaneously rotate, the first nut seat 31 moves along the first lead screw 30 under the action of the first limit groove 32, the second nut seat 34 moves along the second screw rod 33 under the action of the second limiting groove 35, because the first side 40 of the sunshade cloth 4 is fixedly connected with the groove wall of the accommodating groove 6, the second side 41 of the sunshade cloth 4 has a first end 411 and a second end 412 which are opposite, the first end 411 is fixedly connected with the first nut seat 31, and the second end 412 is fixedly connected with the second nut seat 34, when the first screw rod 30 and the second screw rod 33 rotate simultaneously, the first nut seat 31 and the second nut seat 34 move simultaneously, so that the two ends of the second side 41 of the sunshade cloth 4 move simultaneously, and the sunshade cloth 4 can be unfolded or folded correspondingly, so that the sunshade area of the sunshade cloth 4 is changed, the sunshade cloth 4 has the sunshade effect, and the sunshade cloth 4 can shield the sunlight irradiated from the first transparent filling block 11 of the shed frame 5 when unfolded, so that the sunlight cannot irradiate people under rain through the second transparent filling block 21 of the bearing top 2, therefore, the problem that pedestrians feel dazzling when passing through the rain shed and cause discomfort to eyes is successfully solved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a sun-proof canopy of steel construction, includes rack (5) and shed roof (1), its characterized in that: the sunshade cloth is characterized by further comprising a supporting roof (2), sunshade cloth (4) and a driving mechanism (3), wherein the shed roof (1) is arched, the shed roof (1) comprises a first frame body (10) and first transparent filling blocks (11), the first transparent filling blocks (11) are arranged on the first frame body (10), the supporting roof (2) comprises a second frame body (20) and second transparent filling blocks (21), the second transparent filling blocks (21) are arranged on the second frame body (20), the shed roof (1) and the supporting roof (2) are arranged at the top end of the shed frame (5), the supporting roof (2) is arranged below the shed roof (1), and the first transparent filling blocks (11) are opposite to the second transparent filling blocks (21);

an accommodating groove (6) for accommodating the sunshade cloth (4) is formed between the supporting top (2) and the shed top (1), the sunshade cloth (4) is provided with a first side (40) and a second side (41) which are opposite, the first side (40) is fixedly connected with a groove wall at one end of the accommodating groove (6), the second side (41) of the sunshade cloth (4) is movably arranged on the supporting top (2), the second side (41) of the sunshade cloth (4) is in a fully unfolded state when moving to a first position and is in a fully folded state when moving to a second position, and the second side (41) of the sunshade cloth (4) is used for moving between the first position and the second position so as to adjust the sunshade area of the sunshade cloth (4);

the driving mechanism (3) is arranged on the supporting top (2), and the driving mechanism (3) is used for driving the second side (41) of the sunshade cloth (4) to move.

2. The steel structure sun protection canopy according to claim 1, wherein: the driving mechanism (3) comprises a first screw rod (30), a first nut seat (31) and a first limiting groove (32), the second side (41) is fixedly connected with the first nut seat (31), the first nut seat (31) is sleeved on the first screw rod (30), the first limiting groove (32) is arranged on the bearing top (2), and the first limiting groove (32) is used for limiting the first nut seat (31) so that the first nut seat (31) moves along the length direction of the first screw rod (30) when the first screw rod (30) is driven to rotate;

the first nut seat (31) is used for driving the second side (41) of the sunshade cloth (4) to move between the first position and the second position when moving.

3. The steel structure sun protection canopy according to claim 2, wherein: the sun-shading cloth is characterized by further comprising a linkage mechanism (7), the driving mechanism (3) comprises a second screw rod (33), a second nut seat (34) and a second limiting groove (35), the second side (41) of the sun-shading cloth (4) comprises a first end (411) and a second end (412) which are opposite, the first screw rod (30) is opposite to the second screw rod (33), the second limiting groove (35) is formed in the bearing top (2), the first end (411) is fixedly connected with the first nut seat (31), the second end (412) is fixedly connected with the second nut seat (34), the second nut seat (34) is sleeved on the second screw rod (33), and the second limiting groove (35) is used for limiting the second nut seat (34) so that the second nut seat (34) moves along the length direction of the second screw rod (33) when the second screw rod (33) rotates;

the first screw rod (30) is used for driving the second screw rod (33) to rotate through the linkage mechanism (7) when rotating.

4. A steel structure sunscreen rainshed as claimed in claim 3, wherein: the linkage mechanism (7) comprises a linkage rod (70), a first gear (71) and a second gear (72), the first gear (71) and the second gear (72) are fixedly sleeved at two opposite ends of the linkage rod (70) respectively, a third gear (36) is fixedly sleeved on the first screw rod (30), the first gear (71) is meshed with the third gear (36), a fourth gear (37) is fixedly sleeved on the second screw rod (33), the second gear (72) is meshed with the fourth gear (37), and the linkage rod (70) is perpendicular to the first screw rod (30) and the second screw rod (33).

5. The steel structure sun protection canopy according to claim 4, wherein: actuating mechanism (3) still include actuating lever (38), rack (5) have many spinal branchs vaulting pole (50), actuating lever (38) are vertical to be set up on bracing piece (50), actuating lever (38) with first lead screw (30) are perpendicular, the tip of actuating lever (38) is equipped with fifth gear (39), fifth gear (39) with third gear (36) meshing.

6. The steel structure sun protection canopy according to claim 5, wherein: still including rotating handle (8) and reversing mechanism (9), reversing mechanism (9) are including reversing lever (90), reversing lever (90) set up on bracing piece (50), reversing lever (90) with actuating lever (38) are perpendicular, it sets up to rotate handle (8) on reversing lever (90), the one end that actuating lever (38) deviate from fifth gear (39) is equipped with sixth gear (91), the one end that reversing lever (90) deviate from rotation handle (8) is equipped with seventh gear (92), sixth gear (91) and seventh gear (92) meshing.

7. The steel structure sun protection canopy according to claim 6, wherein: the both sides of bearing top (2) all have first connecting portion (22), the both sides of canopy top (1) all have second connecting portion (12), first connecting portion (22) and second connecting portion (12) pass through bolted connection.

8. The steel structure sun protection canopy according to claim 7, wherein: and a cover edge (13) is arranged on the second connecting part (12), and the cover edge (13) is used for abutting against the outer edge of the second connecting part (12) when the shed roof (1) is connected with the bearing roof (2).

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