A folding canopy with a middle connecting track

Abstract

The utility model provides a folding canopy with an intermediate connecting track, which belongs to the field of building sunshade. It solves the problem that a large lateral span can easily cause the curtain pieces to collapse downward in the middle due to their own weight, thereby bending and damaging the curtain pieces, and the poor drainage function of traditional canopies. A folding canopy with an intermediate connecting track includes a protective cover, a middle rail and a driving device. The driving device is installed inside the protective cover, side rails are installed at both ends of the driving device, and a middle rail is arranged in the middle of the driving device. A number of curtain pieces that can be retracted or unfolded under the drive of the driving device are arranged on the side rails and the middle rail. It has the advantages of increasing the lateral span of the canopy, enhancing the strength of the curtain pieces, and improving the drainage performance of the canopy.

Description

Technical Field

[0001] The utility model relates to the technical field of building sunshade, in particular to a folding canopy with a middle connecting track. Background Art

[0002] In some use scenarios where a larger canopy is needed, the horizontal span of the canopy is required to be larger. In this case, the length of a single curtain piece is required to be longer, and the longer the curtain piece is, the heavier it is. For a thin plate-shaped curtain piece, a large horizontal span can easily cause the middle of the curtain piece to collapse downward due to its own weight, thereby bending and damaging the curtain piece. In addition, the drainage function of traditional canopies is not perfect. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the shortcomings of the prior art, the utility model provides a folding canopy with an intermediate connecting track, which has the advantages of increasing the lateral span of the canopy, enhancing the strength of the curtain pieces, and improving the drainage performance of the canopy. It solves the problem that a lateral span that is too large can easily cause the middle part of the curtain pieces to collapse downward due to their own weight, thereby bending and damaging the curtain pieces, and the poor drainage function of traditional canopies.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of increasing the lateral span of the canopy, enhancing the strength of the curtain pieces, and improving the drainage performance of the canopy, the utility model provides the following technical solutions: a folding canopy with an intermediate connecting track, comprising a protective cover, a middle rail, and a driving device, wherein the driving device is installed inside the protective cover, side rails are installed at both ends of the driving device, and a middle rail is arranged in the middle of the driving device, and a plurality of curtain pieces that can be retracted or unfolded under the drive of the driving device are arranged on the side rails and the middle rail.

[0007] Preferably, the protective cover 1 includes an upper cover and a front cover, the inner bottom of the upper cover is provided with a hinge groove 1, the top of the front cover is provided with a hinge head 1, the hinge head 1 and the hinge groove 1 are cooperatively connected to each other, and the inner surfaces of the front cover and the upper cover are also provided with angle iron connectors, and the angle iron connectors fix the drive device inside the protective cover 1.

[0008] Preferably, the driving device includes a fixing part and a winding roller, the top of the fixing part is fixedly arranged inside the protective cover one by an angle iron connecting part, at least three fixing parts are arranged in the protective cover one, and a winding roller is mounted in the fixing part by fasteners, and racks are arranged around the two ends of the winding roller located in the fixing part, and a pulley is connected to the other end of the rack, a transmission part is installed on the rack, and a motor is installed on the winding roller, the transmission part includes a matching rack and a threaded column, one end of the threaded column is fixedly connected to the matching rack, a transmission part body is arranged on the threaded column, the threaded column presses the rack between the matching rack and the transmission part body, and the threaded column passes through the top of the transmission part body and is also equipped with disc one and disc two stacked on each other, and roller one is also arranged on both sides of the transmission part body.

[0009] Preferably, the fixing member is provided with a plug, the fixing member in the middle is connected to the middle rail via the plug, and the fixing members at both ends are connected to the side rails via the plug.

[0010] Preferably, the middle rail is a profile, and the cross-section of the middle rail is a quadrilateral as a whole. Slots are respectively provided at the four corners of the middle rail. The slots and plugs are connected to each other in cooperation. An operating space is also provided between the two upper slots. A sliding groove is provided at the top of the operating space, a rolling groove is provided on the inner bottom surface of the operating space, and a clearance opening is provided on the outer side of the slot.

[0011] Preferably, the side rail is a profile, and the cross-section of the side rail is a quadrilateral as a whole. Slots 2 are respectively provided on the four corners of the side rail, and the slots 2 and the plug are matched and connected with each other. An operating space 2 is also provided between the two upper slots 2, and a sliding groove 2 is provided on the top of the operating space 2, and a rolling groove 1 is provided on the inner bottom surface of the operating space 2. A yield opening 2 is provided on the outer side of the slot 2, and a fastening groove 1 and a fastening groove 2 are also provided above the slot 2 near the inner top during installation, and side rail covers are assembled in the fastening grooves 1 and 2, and fastening strips 1 and 2 are provided at the bottom of the side rail cover, and when installed, the fastening strips 1 and 2 are respectively plugged into the fastening grooves 2 and 1.

[0012] Preferably, rain gutters are installed in slots 1 on both sides of the bottom of the middle rail, and rain gutters are installed in slots 2 near the inner bottom of the side rail. The rain gutters are profiles, and the cross-section of the rain gutters is L-shaped as a whole. Two hook grooves are arranged on the outer sides of the vertical edges of the rain gutters, and flow channels are formed on the horizontal edges of the rain gutters. The two hook grooves can be hooked in the first and second make way openings.

[0013] Preferably, a connecting piece 1 is arranged between the disc 1 and the disc 2 of the transmission part located on the side rail, and a connecting piece 2 is arranged between the disc 1 and the disc 2 of the transmission part located on the middle rail, the connecting piece 1 is L-shaped, and the connecting piece 2 is T-shaped, a movable part is arranged between the connecting piece 1 and the connecting piece 2, the movable part is a profile, and the cross-section of the movable part is a quadrilateral, convex strips are respectively arranged on the tops of the two side surfaces inside the movable part, and an insertion groove is formed between the convex strip and the top surface, and the connecting piece 1 and the connecting piece 2 are respectively arranged in the insertion groove, and a hinge groove 5 is arranged on the outer side surface of the movable part close to the protective cover 1, and a curtain piece is assembled in the hinge groove 5.

[0014] Preferably, a hinge groove 2 is provided at the bottom of the plane near the movable part of the upper cover, a curtain piece is installed in the hinge groove 2, hinge heads 2 are respectively provided on the two side edges of the curtain piece, the hinge head 2 on one side is rotatably assembled with the hinge groove 2, and the hinge head 2 on the other side is rotatably assembled with a hinge part, hinge grooves 3 are respectively provided on both sides of the top of the hinge part, hinge head 2 is rotatably assembled in the hinge groove 3, hinge groove 4 is further provided inside the hinge part, and roller 2 is installed in the hinge groove 4 of the downward hinge part, and the roller 2 is mounted on the side rail and the middle rail to support the curtain piece, and a number of curtain pieces and hinges are sequentially arranged between the upper cover and the movable part.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a folding canopy with an intermediate connecting track, which has the following beneficial effects:

[0017] The folding canopy with a middle connecting track is used by the mutual cooperation of the protective cover 1, the driving device, the middle rail, the side rail and the curtain piece. First, all the parts are assembled in place. In the folding canopy, the number of middle rails can be increased according to the width of the horizontal span that the curtain piece needs to span, so as to achieve a wider span, and at the same time, it can also play a good supporting role for the curtain piece. In this patent, a middle rail is used in the middle to illustrate its working principle. The left and right ends of the curtain piece are respectively placed between the side rail and the middle rail, and can be retracted or unfolded through the roller 2. First, when the curtain piece is in a retracted state, the movable part is closest to the protective cover 1, and the curtain piece located between the protective cover 1 and the movable part is in a vertical state. When the curtain piece needs to be unfolded, the motor is turned on to drive the winding roller to rotate. At this time, the rack located on the winding roller will move under the drive of the winding roller, and the transmission part fixed on the rack will gradually move away from the protective cover 1. Since the transmission part is fixedly connected to the movable part through the connecting piece 1 and the connecting piece 2, the movable part is driven away from the protective cover 1 during the process of the transmission part moving away from the protective cover 1, thereby realizing the unfolding of the curtain piece. The sunshade design requires a motor to be connected to the winding roller to realize the operation of the entire device. In addition, the rainwater gutters installed at the bottom of the side rails and the middle rails can effectively receive the rainwater falling from the gap between the two sets of curtain pieces, and then drain it through the gutter to improve the drainage effect of the device. This achieves the effect of increasing the horizontal span of the canopy, enhancing the strength of the curtain pieces, and improving the drainage performance of the canopy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of a folding canopy structure with an intermediate connecting track according to the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of a folding canopy with a middle connecting track according to the utility model;

[0020] Figure 3 This is an internal side view of a folding canopy with a middle connecting track according to the utility model;

[0021] Figure 4 This is a schematic diagram of the enlarged structure of the A part of the folding canopy with a middle connecting track of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of a foldable skylight protective cover with a middle connecting track of the utility model;

[0023] Figure 6 This is a structural schematic diagram of a foldable skylight protective cover with a middle connecting track of the utility model;

[0024] Figure 7 This is a schematic diagram of the enlarged structure of the B part of a folding canopy with a middle connecting track of the utility model;

[0025] Figure 8 This is a schematic diagram of the structure of a folding canopy transmission component with an intermediate connecting track of the utility model;

[0026] Fig. 9 This is a schematic diagram of the middle rail structure of a folding canopy with an intermediate connecting rail according to the utility model;

[0027] Fig.10 This is a schematic diagram of the enlarged structure of the C position of a folding canopy with a middle connecting track of the utility model;

[0028] Fig.11 This is a schematic diagram of a folding canopy and a water tank structure with an intermediate connecting track of the utility model;

[0029] Fig.12 This is a schematic diagram of the enlarged structure of the D position of a folding canopy with a middle connecting track of the utility model;

[0030] Fig.13 This is a schematic diagram of a folding awning side rail structure with an intermediate connecting rail according to the utility model;

[0031] Fig.14 This is a schematic diagram of the enlarged structure of the E position of a folding canopy with a middle connecting track of the utility model;

[0032] Fig.15 This is a schematic diagram of the structure of a folding canopy with a middle connecting track when it is retracted;

[0033] Fig.16 This is a schematic diagram of the enlarged structure of the F position of a folding canopy with a middle connecting track of the utility model;

[0034] Fig.17 This is a schematic diagram of the structure of a folding canopy side rail cover with an intermediate connecting rail according to the utility model;

[0035] Fig.18 This is a schematic diagram of the enlarged structure of the G position of a folding canopy with a middle connecting track of the utility model;

[0036] Fig.19 This is a schematic diagram of a folding canopy curtain sheet with a middle connecting track in a retracted state according to the utility model;

[0037] Fig. 20 This is a schematic diagram of the structure of a folding skylight movable part with an intermediate connecting track of the utility model;

[0038] Fig.21 This is a schematic diagram of the enlarged structure of the H position of a folding canopy with a middle connecting track of the utility model;

[0039] Fig. 22 This is a schematic diagram of the first type of curtain sheet structure of a folding canopy with an intermediate connecting track according to the utility model;

[0040] Fig.23 The utility model is a schematic diagram of the second curtain piece structure of a folding canopy with a middle connecting track.

[0041] In the figure: 1 protective cover 1, 2 upper cover, 3 front cover, 4 hinge groove 1, 5 hinge head 1, 6 angle iron connecting piece, 7 hinge groove 2, 8 driving device, 9 plug, 10 fixing piece, 11 winding roller, 12 fastener, 13 rack, 14 pulley, 15 transmission piece, 16 threaded column, 17 disc 1, 18 disc 2, 19 roller 1, 20 matching rack, 21 middle rail, 22 clearance opening 1, 23 rolling groove 1, 24 sliding groove 1, 25 running space 1, 26 rainwater gutter, 27 hook groove, 28 water flow trough, 29 side rail, 30 fastening groove one, 31 fastening groove two, 32 give way opening two, 33 rolling groove two, 34 sliding groove two, 35 operating space two, 52 slot two, 36 curtain plate, 37 hinge head two, 38 hinged part, 39 hinged groove three, 40 roller two, 41 side rail cover, 42 fastening strip one, 43 fastening strip two, 44 ​​movable part, 45 convex strip, 46 insertion groove, 47 hinged groove five, 48 connecting piece one, 49 connecting piece two, 50 hinged groove four, 51 slot one. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] See also Figure 1-23A folding canopy with a middle connecting track includes a protective cover 1, a middle rail 21 and a driving device 8. The driving device 8 is installed inside the protective cover 1, and side rails 29 are installed at both ends of the driving device 8. The middle rail 21 is arranged in the middle of the driving device 8. The side rails 29 and the middle rail 21 are both provided with a plurality of curtain pieces 36 that can be retracted or expanded under the drive of the driving device 8. When assembling the canopy, multiple middle rails 21 can be selected to be installed between two side rails 29 according to the required width of the span, so as to better support the curtain pieces 36 therein. In this patent, a middle rail 21 is arranged between two side rails 29 to explain the function and role of the canopy. When multiple middle rails 21 are installed between two side rails 29, the same is also applicable. The driving device 8 is driven by a motor (not shown in the figure) arranged in the middle rail 21. In this patent, only one motor is required to drive the array of curtain pieces 36 to retract and expand, which is more economical.

[0044] The protective cover 1 includes an upper cover 2 and a front cover 3. A hinge groove 54 is provided at the inner bottom of the upper cover 2, and a hinge joint 1 is provided at the top of the front cover 3. The hinge joint 1 and the hinge groove 54 are connected to each other. An angle iron connector 6 is also provided on the inner surface of the front cover 3 and the upper cover 2. The angle iron connector 6 fixes the driving device 8 inside the protective cover 1. The upper cover 2 and the front cover 3 mainly protect the fixing member 10 and the winding roller 11 installed therein to prevent external dust or rain from affecting their work. During installation, the front cover 3 can be installed on the upper cover 2 after the hinge joint 1 and the hinge groove 54 are clamped together, and the fixing member 10 is fixedly installed on the inner side of the upper cover 2 and the front cover 3 by fasteners 12 such as bolts and the angle iron connector 6.

[0045] The driving device 8 includes a fixing member 10 and a winding roller 11. The top of the fixing member 10 is fixedly arranged inside the protective cover 1 through an angle iron connector 6. At least three fixing members 10 are arranged inside the protective cover 1. The two fixing members 10 at the two ends of the three fixing members 10 correspond to the two side rails 29 on both sides, and the middle fixing member 10 corresponds to the middle middle rail 21. If more than three fixing members 10 are installed, the fixing members 10 at both ends still correspond to the two side rails 29, and the middle fixing members 10 correspond to the middle middle rails 21. The winding roller 11 is mounted inside the fixing member 10 through a fastener 12. The winding roller 11 is rotatably arranged in the fixing member 10 through the fastener 12, and the fixing member 10 supports the winding roller 11. Racks 13 are arranged around the two ends of the winding roller 11 located in the fixing member 10, and the other end of the rack 13 is connected to a pulley 14. The pulley 14 is installed at the end of the side rail 29 or the middle rail 21 away from the protective cover 1. The rack 13 can drive the transmission member 15 fixed thereon to move back and forth under the drive of the winding roller 11 , thereby realizing the contraction and expansion of the curtain piece 36 .

[0046] The transmission member 15 includes a matching rack 20 and a threaded column 16, one end of the threaded column 16 is fixedly connected to the matching rack 20, the transmission member 15 body is arranged on the threaded column 16, and the threaded column 16 presses the rack 13 between the matching rack 20 and the transmission member 15 body. The transmission member 15 body is installed in the operation space 1 25 and the operation space 2 35. The top of the threaded column 16 passing through the transmission member 15 body is also equipped with a disc 17 and a disc 2 18 stacked on each other, the disc 17 and the disc 2 18 are threadedly connected to the threaded column 16, and a connecting piece 1 48 and a connecting piece 2 49 are arranged between the disc 17 and the disc 2 18, and the connecting piece 1 48 and the connecting piece 2 49 are pressed between the disc 17 and the disc 2 18. The rollers 19 disposed on both sides of the main body of the transmission member 15 cooperate with the rolling grooves 1 23 and 2 33 at the bottom of the operating space 1 25 and the operating space 2 35 to ensure the accuracy and stability of the transmission member 15 during the back and forth movement.

[0047] A plug 9 is provided on the fixing member 10, and the fixing member 10 located in the middle is connected to the middle rail 21 through the plug 9, and the fixing members 10 located at both ends are connected to the side rails 29 through the plugs 9. The plug 9 on the fixing member 10 can be inserted into four slots 51 of the middle rail 21 to fix the middle rail 21 on the fixing member 10. Similarly, the plug 9 on the fixing member 10 can be inserted into four slots 52 of the side rail 29 to fix the side rail 29 on the fixing member 10, thereby forming the main frame support structure of the entire canopy.

[0048] The middle rail 21 is a profile, and the middle rail 21 can be made of profiles such as aluminum profiles. The cross-section of the middle rail 21 is a quadrilateral as a whole, and slots 51 are respectively provided at the four corners of the middle rail 21. The slots 51 and the plugs 9 are connected with each other, so that the middle rail 21 and the fixing member 10 are fixedly connected together, and the curtain pieces 36 can be supported at the connection between each two sets of curtain pieces 36. An operating space 25 is also provided between the two upper slots 51, and a sliding groove 24 is provided at the top of the operating space 25. A rolling groove 23 is provided on the inner bottom surface of the operating space 25. A transmission member 15 is installed in the operating space 25 and the sliding groove 24, so that the transmission member 15 can slide back and forth in the middle rail 21 along its length direction and maintain a certain degree of accuracy and stability. The outer side of the slot 1 51 is provided with a clearance opening 22, in which a rain gutter 26 is installed. The rain gutter 26 can collect leaked rainwater and discharge it, ensuring that the user at the bottom of the canopy will not be wetted by the leaked rainwater.

[0049] The side rail 29 is a profile, and the side rail 29 can be made of profiles such as aluminum profiles. The cross section of the side rail 29 is a quadrilateral as a whole, and slots 2 52 are respectively provided at the four corners of the side rail 29. The slots 2 52 and the plug 9 are connected to each other, so that the side rail 29 and the fixing member 10 are fixedly connected together, and the outermost ends of the two groups of curtain pieces 36 near the outside can be supported. An operating space 2 35 is also provided between the two upper slots 2 52, and a sliding groove 2 34 is provided on the top of the operating space 2 35. A rolling groove 1 23 is provided on the inner bottom surface of the operating space 2 35. A transmission member 15 is also installed in the operating space 2 35. The transmission members 15 move together to drive the curtain pieces 36 to shrink and expand. A clearance opening 2 32 is provided on the outside of the slot 2 52, and a rain gutter 26 is also installed in the clearance opening 2 32. The rain gutter 26 can collect leaked rainwater and discharge it to ensure that the user at the bottom of the canopy will not be wet by the leaked rainwater. During installation, fastening groove 1 30 and fastening groove 2 31 are arranged above the slot 2 52 near the inner top, and side rail cover plate 41 is installed in fastening groove 1 30 and fastening groove 2 31, and fastening strip 1 42 and fastening strip 2 43 are arranged at the bottom of side rail cover plate 41, and fastening strip 1 42 and fastening strip 2 43 are respectively plugged into fastening groove 2 31 and fastening groove 1 30 during installation. After the transmission member 15 is installed in the side rail 29, a part of its top is still exposed outside the upper part of the side rail 29, and in order to ensure that the side rail 29 is not polluted by rainwater, a side rail cover plate 41 is arranged on its top, and the two fastening strips 1 42 and fastening strip 2 43 at the bottom of the side rail cover plate 41 are inserted into fastening groove 2 31 and fastening groove 1 30 at the top of the side rail 29 to achieve fixation between the two, thereby protecting the internal side rail 29 and the transmission member 15.

[0050] The slots 1 51 on both sides of the bottom of the middle rail 21 are equipped with rain gutters 26, and the slots 2 52 near the inner bottom of the side rail 29 are equipped with rain gutters 26. The rain gutters 26 are profiles, and the cross section of the rain gutters 26 is L-shaped as a whole. Two hook grooves 27 are arranged on the outer side of the vertical side of the rain gutters 26, and a water flow trough 28 is formed on the horizontal side of the rain gutters 26. The two hook grooves 27 can be hooked in the first and second clearance openings 22 and 32. The rain gutters 26 can be made of profiles such as aluminum profiles. Rain gutters 26 are arranged on both sides of the bottom of the middle rail 21, because both sides of the middle rail 21 need to play a waterproof role, while on the side rail 29, only the inner side is provided with rain gutters 26, because for the side rail 29, only the inner side needs to play a waterproof effect. The rain gutter 26 is hooked in the first opening 22 of the middle rail 21 through two hook grooves 27. The rain gutter 26 is hooked in the second opening 32 of the middle rail 21 through two hook grooves 27. The leaked rainwater is received through the water flow groove 28 and discharged through the water flow groove 28, thereby achieving a better waterproof effect.

[0051] A connecting piece 148 is arranged between the disc 17 and the disc 2 18 of the transmission member 15 located on the side rail 29, and a connecting piece 249 is arranged between the disc 17 and the disc 2 18 of the transmission member 15 located on the middle rail 21. The connecting piece 148 is L-shaped, and the connecting piece 249 is T-shaped. A movable member 44 is arranged between the connecting piece 148 and the connecting piece 249. The movable member 44 is a profile, and the cross-section of the movable member 44 is a quadrilateral. The tops of the two side surfaces inside the movable member 44 are respectively provided with convex strips 45, and an insertion groove 46 is formed between the convex strip 45 and the top surface. The connecting piece 148 and the connecting piece 249 are respectively arranged in the insertion groove 46. A hinge groove 547 is arranged on the outer side surface of the movable member 44 close to the protective cover 1, and the curtain piece 36 is assembled in the hinge groove 547. In order to drive the curtain 36 to contract or expand during the movement of the transmission member 15, firstly, all the two ends connected in series by the hinge 38 should be supported, so the starting end of the curtain 36 connected in series is rotatably connected to the hinge groove 2 7 set at the bottom of the upper cover 2 near the plane of the movable member 44, so as to achieve the fixation of the starting section of the curtain 36, and the tail end is supported by the connecting piece 1 48 and the connecting piece 2 49. The connecting piece 1 48 is L-shaped, one end is pressed and fixed by the round piece 1 17 and the round piece 2 18, and the other end is inserted into the insertion groove 46 of the movable member 44. Similarly, the connecting piece 2 49 is T-shaped, the middle end is pressed and fixed by the round piece 1 17 and the round piece 2 18, and the two side ends are inserted into the insertion groove 46 of the movable member 44, so as to set up the movable member 44 between the connecting piece 1 48 and the connecting piece 2 49, and finally the terminal end of the curtain 36 connected in series is rotatably connected to the hinge groove 5 47, so as to achieve the fixation of all the curtain 36.

[0052] The upper cover 2 is provided with a hinge groove 27 at the bottom of the plane near the movable member 44. The hinge groove 27 is equipped with a curtain piece 36. The hinge groove 27 is used to connect the starting ends of the curtain pieces 36 connected in series. The two sides of the curtain pieces 36 are respectively provided with hinge joints 27. For the two hinge joints 27 of the curtain pieces 36 at the starting end and the terminal end, one of them is connected to the hinge groove 27 or the hinge groove 547, and the other is connected to the hinge member 38. For the middle curtain piece 36, the two hinge joints 27 are both rotatably connected to the hinge groove 39 of the hinge member 38.

[0053] The hinge 38 is also provided with a hinge groove 40 inside, and a roller 2 40 is installed in the hinge groove 40 of the downward hinge 38, and the roller 2 40 is mounted on the side rail 29 and the middle rail 21 to support the curtain piece 36. Since the unfolded length of the curtain piece 36 is also long, the middle curtain piece 36 also needs a certain support, so the roller 2 40 is installed in the hinge groove 40 of the downward hinge 38, and then the roller 2 40 is mounted on the side rail 29 and the middle rail 21, which can not only support the middle curtain piece 36, but also make the curtain piece 36 more stable to shrink and unfold.

[0054] In this patent, the curtain piece 36 has two specifications, the first one has a sun-shaped structure in the middle, and the second one has a straight-line structure in the middle.

[0055] Working principle: First, assemble all the parts in place. In this folding canopy, the number of middle rails 21 can be increased according to the width of the horizontal span that the curtain piece 36 needs to span, so as to achieve a wider span, and at the same time, it can also play a good supporting role for the curtain piece 36. In this patent, a middle rail 21 is used in the middle to illustrate its working principle. The left and right ends of the curtain piece 36 are respectively placed between the side rails 29 and the middle rail 21, and can be retracted or unfolded through the roller 2 40. First, when the curtain piece 36 is in a retracted state, the movable part 44 is closest to the protective cover 1, and the curtain piece 36 located between the protective cover 1 and the movable part 44 is in a vertical state. When the curtain 36 needs to be unfolded, the motor is turned on to drive the winding roller 11 to rotate. At this time, the rack 13 on the winding roller 11 will move under the drive of the winding roller 11, and the transmission member 15 fixed on the rack 13 will gradually move away from the protective cover 1. Since the transmission member 15 is fixedly connected to the movable member 44 through the connecting piece 1 48 and the connecting piece 2 49, the movable member 44 is driven away from the protective cover 1 in the process of the transmission member 15 moving away from the protective cover 1, thereby realizing the unfolding of the curtain 36. The sunshade design only requires a motor to be connected to the winding roller 11 to realize the operation of the entire device. In addition, the rainwater gutter 26 installed at the bottom of the side rail 29 and the middle rail 21 can effectively receive the rainwater falling from the gap between the two groups of curtains 36, and then drain it through the water gutter 28, thereby improving the drainage effect of the device. Thereby, the effect of increasing the horizontal span of the canopy, enhancing the strength of the curtain 36, and improving the drainage performance of the canopy is achieved.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A folding canopy with an intermediate connecting track, characterized in that: The invention comprises a protective cover (1), a middle rail (21) and a driving device (8), wherein the driving device (8) is installed inside the protective cover (1), side rails (29) are installed at both ends of the driving device (8), a middle rail (21) is arranged in the middle of the driving device (8), and a plurality of curtain blades (36) that can be retracted or expanded under the drive of the driving device (8) are arranged on the side rails (29) and the middle rail (21).

2. The foldable canopy with a middle connecting track according to claim 1, characterized in that: The protective cover (1) comprises an upper cover (2) and a front cover (3), the inner bottom of the upper cover (2) is provided with a hinge groove (5) (4), the top of the front cover (3) is provided with a hinge head (1), the hinge head (1) and the hinge groove (5) (4) are connected to each other in a coordinated manner, and the inner surfaces of the front cover (3) and the upper cover (2) are also provided with angle iron connecting pieces (6), and the angle iron connecting pieces (6) fix the driving device (8) inside the protective cover (1).

3. The foldable canopy with a middle connecting track according to claim 1, characterized in that: The driving device (8) comprises a fixing member (10) and a winding roller (11); the top of the fixing member (10) is fixedly arranged inside the protective cover (1) via an angle iron connecting member (6); at least three fixing members (10) are arranged inside the protective cover (1); the winding roller (11) is mounted inside the fixing member (10) via a fastener (12); racks (13) are arranged around the two ends of the winding roller (11) located in the fixing member (10); the other end of the rack (13) is connected to a pulley (14); a transmission member (15) is mounted on the rack (13); the winding roller (11) 11) is equipped with a motor, the transmission member (15) includes a matching rack (20) and a threaded column (16), one end of the threaded column (16) is fixedly connected to the matching rack (20), the transmission member (15) body is arranged on the threaded column (16), the threaded column (16) presses the rack (13) between the matching rack (20) and the transmission member (15) body, the threaded column (16) passes through the top of the transmission member (15) body and is also equipped with a disc 1 (17) and a disc 2 (18) stacked on each other, and rollers 1 (19) are also arranged on both sides of the transmission member (15) body.

4. The foldable canopy with a middle connecting track according to claim 3, characterized in that: The fixing member (10) is provided with a plug (9), the fixing member (10) located in the middle is connected to the middle rail (21) via the plug (9), and the fixing members (10) located at both ends are connected to the side rails (29) via the plug (9).

5. The foldable canopy with a middle connecting track according to claim 4, characterized in that: The middle rail (21) is a profile, and the cross section of the middle rail (21) is generally quadrilateral. The four corners of the middle rail (21) are respectively provided with slots (51), and the slots (51) and the plug (9) are connected to each other in a coordinated manner. An operating space (25) is also provided between the two upper slots (51), and a sliding groove (24) is provided at the top of the operating space (25). A rolling groove (23) is provided on the inner bottom surface of the operating space (25), and a clearance opening (22) is provided on the outer side of the slot (51).

6. The foldable canopy with a middle connecting track according to claim 4, characterized in that: The side rail (29) is a profile, and the cross-section of the side rail (29) is generally quadrilateral. The four corners of the side rail (29) are respectively provided with slots (52). The slots (52) and the plug (9) are connected to each other in a coordinated manner. An operating space (35) is also provided between the two upper slots (52). A sliding groove (34) is provided on the top of the operating space (35). A rolling groove (23) is provided on the inner bottom surface of the operating space (35). The outer side of the slots (52) is provided with a sliding groove (34). A second clearance opening (32) is provided, and a first fastening groove (30) and a second fastening groove (31) are provided above the second slot (52) near the inner top during installation, and a side rail cover plate (41) is installed in the first fastening groove (30) and the second fastening groove (31), and a first fastening strip (42) and a second fastening strip (43) are provided at the bottom of the side rail cover plate (41). During installation, the first fastening strip (42) and the second fastening strip (43) are respectively plugged into the second fastening groove (31) and the first fastening groove (30).

7. The foldable canopy with a middle connecting track according to claim 4, characterized in that: A rain gutter (26) is installed in the slots (51) on both sides of the bottom of the middle rail (21), and a rain gutter (26) is installed in the slots (52) near the inner bottom of the side rail (29). The rain gutter (26) is a profile. The cross section of the rain gutter (26) is L-shaped as a whole. Two hook grooves (27) are arranged on the outer side of the vertical edge of the rain gutter (26). A water flow channel (28) is formed on the horizontal edge of the rain gutter (26). The two hook grooves (27) can be hooked in the first clearance opening (22) and the second clearance opening (32).

8. The foldable canopy with a middle connecting track according to claim 7, characterized in that: A connecting piece 1 (48) is provided between the disc 1 (17) and the disc 2 (18) of the transmission member (15) on the side rail (29); a connecting piece 2 (49) is provided between the disc 1 (17) and the disc 2 (18) of the transmission member (15) on the middle rail (21); the connecting piece 1 (48) is L-shaped, the connecting piece 2 (49) is T-shaped, a movable member (44) is provided between the connecting piece 1 (48) and the connecting piece 2 (49); the movable member (44) is provided between the connecting piece 1 (48) and the connecting piece 2 (49); 4) is a profile, the cross section of the movable part (44) is quadrilateral, the tops of the two side surfaces inside the movable part (44) are respectively provided with convex strips (45), an insertion groove (46) is formed between the convex strips (45) and the top surface, a connecting piece 1 (48) and a connecting piece 2 (49) are respectively provided in the insertion groove (46), and a hinge groove 5 (47) is provided on the outer side surface of the movable part (44) close to the protective cover 1 (1), and a curtain piece (36) is mounted in the hinge groove 5 (47).

9. The foldable canopy with a middle connecting track according to claim 2, characterized in that: A second hinge groove (7) is provided at the bottom of the plane of the upper cover (2) close to the movable part (44), a curtain piece (36) is mounted in the second hinge groove (7), two hinge joints (37) are respectively provided on two side edges of the curtain piece (36), the second hinge joint (37) on one side is rotatably mounted with the second hinge groove (7), and the second hinge joint (37) on the other side is rotatably mounted with a hinge piece (38), and three hinge grooves (39) are respectively provided on both sides of the top of the hinge piece (38). A hinge head 2 (37) is rotatably mounted in the hinge groove 3 (39), and a hinge groove 4 (50) is further arranged inside the hinge member (38). A roller 2 (40) is arranged in the hinge groove 4 (50) of the hinge member (38) facing downward, and the roller 2 (40) is mounted on the side rail (29) and the middle rail (21) to support the curtain sheet (36). A plurality of curtain sheets (36) and hinge members (38) are arranged in sequence between the upper cover (2) and the movable member (44).

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