A sunshade tester and a testing method

Abstract

The present invention discloses a sunshade tester and a testing method, which include a bracket body, a traction device, a first pull rod, and a second pull rod. The bracket body includes two first fixing rods located at the top, and the two first fixing rods are arranged in parallel. An first adjusting rod and a second adjusting rod are installed between the two first fixing rods. A first guide wheel and a second guide wheel are respectively installed on the first adjusting rod and the second adjusting rod. The traction device is connected with a rope body, and the rope body respectively bypasses the first guide wheel and the second guide wheel. The frame body further includes a third fixing rod located between the two first fixing rods. The third fixing rod is located on the side of the second adjusting rod away from the first adjusting rod. A first support rod is respectively installed at both ends of the third fixing rod, and the length direction of the first support rod is vertically arranged. A sunshade can be installed between the two first support rods. The sunshade includes a cross bar located on the side away from the first support rod, and a fastening component is installed on the cross bar. The rope body led out by the second adjusting rod can be connected with the fastening component. The present invention provides a sunshade tester and a testing method, which can provide the detection of various outdoor sunshade products and has strong adaptability.

Description

Technical Field

[0001] The present invention relates to the technical field of sunshade testing equipment, and more specifically, to a sunshade testing machine and a testing method. Background Art

[0002] With the increasing usage frequency of outdoor sunshade products in the market, it is necessary to strictly control the windproof ability of such products before leaving the factory. Currently, for such products, a detection method similar to the windproof detection of windows is adopted, that is, the product is placed at the air outlet, and the wind is applied to detect its windproof performance. Due to the variety of outdoor sunshade products, the current detection equipment cannot meet all kinds of outdoor sunshade products. Therefore, there is a lack of an effective testing device for detecting the windproof ability of outdoor sunshade products, resulting in defects in its quality control. Summary of the Invention

[0003] An object of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a sunshade testing machine and a testing method, which can provide detections for various outdoor sunshade products and have strong adaptability.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A sunshade testing machine includes a support body, a traction device, a first pull rod, and a second pull rod. The support body includes two first fixing rods located at the top, the two first fixing rods are arranged in parallel, an adjusting rod one and an adjusting rod two are installed between the two first fixing rods, a first guide wheel and a second guide wheel are respectively installed on the adjusting rod one and the adjusting rod two, the traction device is connected with a rope body, and the rope body respectively bypasses the first guide wheel and the second guide wheel; the support body further includes a third fixing rod located between the two first fixing rods, the third fixing rod is located on the side of the adjusting rod two away from the adjusting rod one, two support rods one are respectively installed at both ends of the third fixing rod, the length direction of the support rod one is vertically arranged, a sunshade can be installed between the two support rods one, the sunshade includes a cross bar located on the side away from the support rod one, the adjusting rod two is located above the cross bar, a fastening component is installed on the cross bar, and the rope body led out from the adjusting rod two can be connected with the fastening component; the support body further includes an adjusting rod three, the adjusting rod three is arranged in parallel with the third fixing rod, a third guide wheel is installed on the adjusting rod three, the rope body can bypass the third guide wheel, the support body further includes a fourth fixing rod located below the third fixing rod, a rolling curtain can be installed between the third fixing rod and the fourth fixing rod, the rolling curtain includes a first curtain, the first pull rod and the adjusting rod three are located in the same horizontal plane and are arranged in parallel, the first pull rod abuts against the first curtain, the first pull rod is located on the side of the first curtain away from the adjusting rod three, and both axial ends of the first pull rod can be connected with the rope body; the support body further includes a fifth fixing rod located at the bottom, the fifth fixing rod and the fourth fixing rod are located in the same horizontal plane and are arranged in parallel, a ceiling curtain can be installed between the fifth fixing rod and the fourth fixing rod, the ceiling curtain includes a second curtain, the second pull rod is located below the second curtain, and both axial ends of the second pull rod can be connected with the rope body.

[0005] The present invention is further configured such that the height position of the adjusting rod three is lower than the height position of the third fixing rod.

[0006] The present invention is further configured such that the support body further includes a fourth adjusting rod located below the second adjusting rod. The fourth adjusting rod is located below the cross bar. A fourth guide wheel is installed on the fourth adjusting rod. The rope body led out by the second guide wheel can bypass the fourth guide wheel and be connected to the fastening member.

[0007] The present invention is further configured such that the fastening member is sleeved on the cross bar. The fastening member includes hooks located on both axial sides of the cross bar. The hooks are threadedly connected to the fastening member. The two hooks approach each other to press the cross bar tightly. The hooks can connect the rope body.

[0008] The present invention is further configured such that a clamping member is installed on the first adjusting rod. The clamping members are arranged in one-to-one correspondence with the guide wheels. Two clamping jaws are installed at the output end of the clamping member. The rope body passes between the two clamping jaws.

[0009] The present invention is further configured such that second support rods are respectively installed at both ends in the length direction of the fifth fixing rod. Both axial ends of the fourth adjusting rod are detachably connected to the corresponding second support rods.

[0010] The present invention is further configured such that the support body further includes a second fixing rod located below the first adjusting rod. The second fixing rod is located on the side of the support body away from the fifth fixing rod. A traction device is installed on the second fixing rod.

[0011] The present invention also adopts the following technical solution: A testing method for a sunshade testing machine, including the following detection methods:

[0012] S1 Detection of the sunshade

[0013] ① Install the sunshade on the first support rod. Set the distance that the cross bar is pulled out from the first support rod as h4. h4 is half of the maximum distance that the cross bar can be pulled out from the first support rod. The two rope bodies are led out from the second guide wheel, bypass the fourth guide wheel and are hung on the cross bar. The force exerted by the rope body on the cross bar is vertically upward or vertically downward F4, and F4 = Fn / 4;

[0014] ② Set the distance that the cross bar is pulled out from the first support rod as h3. h3 is the maximum distance that the cross bar can be pulled out from the first support rod. Use 6 rope bodies to hang the cross bar and apply 6 vertically upward or vertically downward acting forces. F2 = Fn / 4, F1 = Fn / 8, F3 = Fn / 8. F1, F2, and F3 are symmetrically distributed along the central axis of the sunshade;

[0015] S2 Detection of the roller blind

[0016] ① Install the roller blind between the fourth fixing rod and the fifth fixing rod;

[0017] ② The rope bodies are respectively connected to both axial ends of the first pull rod. The rope bodies at both axial ends of the first pull rod are led out from the third guide wheel. The rope bodies respectively exert horizontal acting forces F5 on both axial ends of the first pull rod, and F5 = Fn / 2.

[0018] S3 Detection of the ceiling curtain

[0019] ① Install the ceiling curtain between the fixed rod four and the fixed rod five, and the pull rod two is located below the center of the curtain two;

[0020] ② The two ends of the pull rod two extend out of the curtain two. The two ends of the pull rod two are respectively connected to the rope bodies. The rope bodies are led out from the guide pulley two. The two rope bodies respectively apply upward vertical forces F6 to the two axial ends of the pull rod two, and F6 = Fn / 2.

[0021] The present invention is further set as follows: In step S1, the acting point of the force F4 is the connection point between the cross bar and the arm bar. The acting point of the force F1 is at a distance h1 from the side line, h1 = 50 mm. The acting point of the force F3 is at a distance h2 from the central axis of the sunshade awning L1, h2 = L2 / 8, and L2 is the distance between the two struts one.

[0022] In summary, the present invention has the following beneficial effects:

[0023] 1. By performing tensile tests on outdoor sunshade products such as sunshade awnings, and indirectly detecting their wind resistance performance, strict control over the factory quality of the products can be achieved.

[0024] 2. The sunshade tester has the ability to detect various outdoor sunshade products such as sunshade awnings, roller blinds, and ceiling curtains, with strong adaptability, reduced manufacturing costs, and reduced floor space. Brief Description of the Drawings

[0025] Figure 1 Isometric view of the embodiment Figure 1 ;

[0026] Figure 2 Is the connection cross-sectional view of the fastening component and the cross bar in the embodiment;

[0027] Figure 3 Is the installation schematic diagram of the adjusting rod one and the clamping component in the embodiment;

[0028] Figure 4 Is the force schematic diagram of the sunshade awning Figure 1 ;

[0029] Figure 5 Is the force schematic diagram of the sunshade awning Figure 2 ;

[0030] Figure 6 Is the isometric view of the embodiment Figure 2 ;

[0031] Figure 7 Is Figure 6 The enlarged view of the A position in

[0032] Figure 8 Is the test schematic diagram of the ceiling curtain in the embodiment.

[0033] Reference numerals: support body 1, first fixed rod 11, first adjusting rod 12, first guide wheel 121, second adjusting rod 13, second guide wheel 131, third adjusting rod 14, third guide wheel 141, second fixed rod 15, traction device 151, fourth adjusting rod 16, fourth guide wheel 161, third fixed rod 17, first support rod 171, fourth fixed rod 18, fifth fixed rod 19, second support rod 191, sunshade awning 2, cross bar 21, arm rod 22, clamping member 3, jaw 31, rope body 4, first pull rod 5, rolling curtain 6, first curtain 61, ceiling curtain 7, second curtain 71, second pull rod 72, fastening member 8, hook 81. Detailed implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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, rather than all 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.

[0035] As Figures 1 - 8 shown, this embodiment discloses a sunshade tester for testing the wind resistance of a sunshade awning 2, a rolling curtain 6, and a ceiling curtain 7 by means of tensile force.

[0036] As Figure 1 shown, the sunshade tester includes a support body 1. The support body 1 includes a second fixed rod 15 and two first fixed rods 11 at the top. The two first fixed rods 11 are located on the same horizontal plane and are arranged in parallel. An first adjusting rod 12 and a second adjusting rod 13 are installed between the two first fixed rods 11. The first adjusting rod 12 and the second adjusting rod 13 are respectively installed with a first guide wheel 121 and a second guide wheel 131. The second fixed rod 15 is located at the left bottom of the support body 1. The second fixed rod 15 is installed with a traction device 151. The traction device 151 includes a motor and a winch. The winch is wound with a rope body 4, and the rope body 4 can be tightened or loosened by the traction device 151. The rope body 4 pulled by the traction device 151 bypasses the first guide wheel 121 and the second guide wheel 131. There are six traction devices 151, and the first guide wheel 121 and the second guide wheel 131 are respectively arranged in one-to-one correspondence with the traction device 151.

[0037] As Figure 1 shown, the support body 1 further includes a third fixed rod 17 between the two first fixed rods 11. The third fixed rod 17 is arranged in parallel with the second adjusting rod 13. The third fixed rod 17 is located on the side of the second adjusting rod 13 away from the first adjusting rod 12. First support rods 171 are respectively installed at both ends of the third fixed rod 17 in the length direction. The first support rods 171 are arranged vertically in the length direction. A sunshade awning 2 can be installed between the two first support rods 171. The sunshade awning 2 includes a cross bar 21 on the side away from the first support rod 171. Refer to Figure 4, the connecting part between the sunshade awning 2 and the first support rod 171 is connected to the cross bar 21 through an arm rod 22, and the arm rod 22 is a folding rod.

[0038] The second adjusting rod 13 is located above the cross bar 21. The cross bar 21 is provided with a fastening member 8, and the rope body 4 led out by the second adjusting rod 13 is connected to the fastening member 8. Specifically, in combination with Figure 2 , the fastening member 8 is sleeved on the cross bar 21. The fastening member 8 includes hooks 81 located on both axial sides of the cross bar 21. The hooks 81 are threadedly connected to the fastening member 8. The two hooks 81 approach each other to press the cross bar 21, and the hooks 81 can connect the rope body 4.

[0039] As Figure 1 shown, the support body 1 further includes a fourth fixing rod 18 located below the third fixing rod 17. The fourth fixing rod 18 is arranged in parallel with the third fixing rod 17. The support body 1 further includes a fifth fixing rod 19 at the bottom. The fifth fixing rod 19 is located in the same horizontal plane as the fourth fixing rod 18 and is arranged in parallel. At both ends in the length direction of the fifth fixing rod 19, second support rods 191 are respectively installed. The second support rods 191 are fixedly connected to the fourth fixing rod 18. An adjusting rod 16 is installed between the two second support rods 191. Axial ends of the adjusting rod 16 are respectively detachably connected to the corresponding second support rods 191. The adjusting rod 16 is located below the second adjusting rod 13 and below the cross bar 21. The adjusting rod 16 is provided with a fourth guide wheel 161. The rope body 4 selectively connects to the hooks 81 on the upper and lower sides of the fastening member 8. When the rope body 4 connects to the lower hook 81, the rope body 4 led out by the second guide wheel 131 bypasses the fourth guide wheel 161 and then connects to the hook 81, so that the rope body 4 can generate a vertically upward or vertically downward force on the cross bar 21.

[0040] As Figure 6 shown, the support body 1 further includes an adjusting rod 14. The adjusting rod 14 is arranged in parallel with the third fixing rod 17. The height position of the adjusting rod 14 is lower than the height position of the third fixing rod 17. The adjusting rod 14 is provided with a third guide wheel 141. The rope body 4 led out from the second guide wheel 131 can bypass the third guide wheel 141. A roller blind 6 can be installed between the third fixing rod 17 and the fourth fixing rod 18. The roller blind 6 includes a first curtain 61. The first pull rod 5 is located in the same horizontal plane as the adjusting rod 14 and is arranged in parallel with each other. The first pull rod 5 abuts against the first curtain 61. The first pull rod 5 is located on the side of the first curtain 61 away from the adjusting rod 14. Axial ends of the first pull rod 5 can connect the rope body 4.

[0041] As Figure 8 shown, a ceiling curtain 7 can be installed between the fifth fixing rod 19 and the fourth fixing rod 18. The ceiling curtain 7 includes a second curtain 71. The second curtain 71 is laid flat in the horizontal direction. A second pull rod 72 is located below the second curtain 71. Axial ends of the second pull rod 72 can connect the rope body 4. By pulling up the second pull rod 72, the second curtain 71 can be lifted upward.

[0042] AsFigure 3 As shown, a clamping component 3 is installed on the adjusting rod 12. The clamping components 3 are arranged in one-to-one correspondence with the first guide wheels 121. Two clamping jaws 31 are installed at the output end of the clamping component 3. The rope body 4 passes between the two clamping jaws 31. When the rope body 4 changes from the tensioned state to the relaxed state, the rope body 4 is clamped by the clamping jaws 31 to prevent the rope body 4 from being pulled back.

[0043] The test method of the sunshade tester includes:

[0044] S1 Detection of the sunshade awning 2

[0045] ① As Figure 1 shown, the sunshade awning 2 is installed on the first support rod 171. As Figure 5 shown, the cross bar 21 is pulled out from the first support rod 171 by a distance h4. h4 is half of the maximum distance that the cross bar 21 can be pulled out from the first support rod 171. The two rope bodies 4 are led out from the second guide wheels 131, bypass the fourth guide wheels 161 and are hung on the cross bar 21, and two vertically downward acting forces F4 are applied. The acting point of F4 is the connection between the cross bar 21 and the arm rod 22.

[0046] F4 = Fn / 4, where Fn is the rated detection force value.

[0047] Fn = β × P × H × L,

[0048] where β = 0.5, L is the dimension L2 shown in Figure 3 , L2 is the length of the sunshade awning 2, or it can also be the distance between the two first support rods 171. H = h4, and P is the wind pressure to be detected.

[0049] The wind pressure is obtained according to the wind speed. P (wind pressure) = 0.5 × r × v2 / g, where r takes the value of 0.01225 and g takes the value of 9.8. According to the wind speed values defined for different wind force levels, the highest value is substituted to obtain the value of Fn corresponding to the wind force level.

[0050] ② As Figure 4 shown, the cross bar 21 is pulled out from the first support rod 171 by a distance h3. h3 is the maximum distance that the cross bar 21 can be pulled out. Six rope bodies 4 are used to hang the cross bar 21 and six vertically downward acting forces are applied. The acting point of F2 is the connection between the cross bar 21 and the arm rod 22. F2 = Fn / 4. The acting point of the force F1 is at a distance h1 from the side line, h1 = 50 mm, F1 = Fn / 8. The acting point of the force F3 is at a distance h2 from the central axis L1, h2 = L2 / 8, and F3 = Fn / 8. F1, F2, and F3 are symmetrically distributed along the central axis L1 of the sunshade awning 2.

[0051] In the above steps, the cross bar 21 is detected in the downward pulling state. The cross bar 21 also needs to be detected in the same way when it is pulled upward.

[0052] S2 Detection of the roller blind 6

[0053] ① As Figure 6 , Figure 7 shown, the rolling curtain 6 is an outdoor guiding rolling curtain. The rolling curtain 6 is installed between the fixing rod four 18 and the fixing rod five 19. The bottom of the rolling curtain 6 is pulled up to a distance h5 from the fixing rod four 18, and h5 = H / 3, where H is the maximum distance value between the top and bottom of the rolling curtain 6.

[0054] ② The two axial ends of the pull rod one 5 are respectively connected to the rope body 4. The rope bodies 4 at the two axial ends of the pull rod one 5 are led out from the guide pulley three 141. The two rope bodies 4 respectively apply horizontal forces F5 to the two axial ends of the pull rod one 5, and F5 = Fn / 2.

[0055] Fn = β×P×H×L,

[0056] where β = 1, and H takes the value of

[0057] the maximum height between the top and bottom of the rolling curtain 6,

[0058] L is the width of the rolling curtain 6, or can also take the value of the distance between the two support rods one 171.

[0059] Detection of the ceiling curtain 7 by S3

[0060] ① As Figure 8 shown, the ceiling curtain 7 is installed between the fixing rod four 18 and the fixing rod five 19. The pull rod two 72 is located below the center of the curtain two 71.

[0061] ② The two ends of the pull rod two 72 extend out of the curtain two 71. The two ends of the pull rod two 72 are respectively connected to the rope body 4. The rope bodies 4 are led out from the guide pulley two 131. The two rope bodies 4 respectively apply vertically upward forces F6 to the two axial ends of the pull rod two 72, and F6 = Fn / 2.

[0062] Fn = β×P×H×L,

[0063] where β = 1,

[0064] H takes the value of the left - right length of the ceiling curtain 7 Figure 8 in

[0065] and L takes the value of the width of H.

[0066] The time for applying the load in each of the above - mentioned tests is 2 min. After unloading and standing still for 2 min, the operating force test is carried out again. The load - bearing capacity of the test sample is evaluated according to whether there is damage or functional disorder in the test sample, and its wind - proof ability is obtained through conversion.

[0067] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A sunshade testing machine, characterized in that: The invention comprises a support body (1), a traction device (151), a pull rod one (5), and a pull rod two (72); the support body (1) comprises two fixed rods one (11) located at the top, the two fixed rods one (11) are arranged in parallel, an adjustment rod one (12) and an adjustment rod two (13) are installed between the two fixed rods one (11), the adjustment rod one (12) and the adjustment rod two (13) are respectively installed with a guide wheel one (121) and a guide wheel two (131); the traction device (151) is connected with a rope body (4), and the rope body (4) passes around the guide wheel one (121) and the guide wheel two (131) respectively; The support body (1) further comprises a fixing rod (17) located between the two fixing rods (11), the fixing rod (17) being located on the side of the adjusting rod (13) away from the adjusting rod (12), and supporting rods (171) are respectively installed at both ends of the fixing rod (17), the supporting rods (171) being vertically arranged in the length direction, and a sunshade (2) can be installed between the two supporting rods (171), the sunshade (2) comprises a cross bar (21), the adjusting rod (13) is located above the cross bar (21), a fastening component (8) is installed on the cross bar (21), and the rope body (4) led out from the adjusting rod (13) can be connected to the fastening component (8); The support body (1) further comprises an adjusting rod three (14), wherein the adjusting rod three (14) is arranged in parallel with the fixing rod three (17), and the adjusting rod three (14) is provided with a guide wheel three (141), and the rope body (4) can pass around the guide wheel three (141); the support body (1) further comprises a fixing rod four (18) located below the fixing rod three (17), and a rolling curtain (6) can be installed between the fixing rod three (17) and the fixing rod four (18), and the rolling curtain (6) comprises a curtain one (61); the pull rod one (5) and the adjusting rod three (14) are located in the same horizontal plane and are arranged in parallel with each other, the pull rod one (5) abuts against the curtain one (61), and the pull rod one (5) is located on the side of the curtain one (61) away from the adjusting rod three (14), and the axial ends of the pull rod one (5) can be connected to the rope body (4); The support body (1) further comprises a fixing rod five (19) located at the bottom, the fixing rod five (19) and the fixing rod four (18) are located in the same horizontal plane and are arranged in parallel, a ceiling curtain (7) can be installed between the fixing rod five (19) and the fixing rod four (18), the ceiling curtain (7) comprises a curtain two (71), the pull rod two (72) is located below the curtain two (71), and the axial ends of the pull rod two (72) can be connected to the rope body (4); The support body (1) further comprises an adjusting rod four (16) located below the adjusting rod two (13), the adjusting rod four (16) being located below the cross bar (21), the adjusting rod four (16) being provided with a guide wheel four (161), the rope body (4) guided by the guide wheel two (131) being able to bypass the guide wheel four (161) and be connected to the fastening component (8); The fastening component (8) is inserted into the cross bar (21), and the fastening component (8) includes hooks (81) located on both axial sides of the cross bar (21), and the hooks (81) are threadedly connected to the fastening component (8). The two hooks (81) are close to each other to press the cross bar (21), and the hooks (81) can be connected to the rope body (4).

2. A sunshade testing machine according to claim 1, characterized in that: The height position of the adjusting rod three (14) is lower than the height position of the fixing rod three (17).

3. A sunshade testing machine according to claim 1, characterized in that: The adjusting rod (12) is provided with a clamping component (3), the clamping component (3) and the guide wheel (121) are arranged in a one-to-one correspondence, the output end of the clamping component (3) is provided with two clamping claws (31), and the rope body (4) passes through the two clamping claws (31).

4. A sunshade testing machine according to claim 1, characterized in that: The two ends of the fixed rod five (19) in the length direction are respectively installed with supporting rods two (191), and the two ends of the adjusting rod four (16) in the axial direction are respectively detachably connected with the corresponding supporting rods two (191).

5. A sunshade testing machine according to claim 1, characterized in that: The support body (1) further comprises a second fixing rod (15) located below the first adjusting rod (12); the second fixing rod (15) is located on a side of the support body (1) away from the fifth fixing rod (19); and the second fixing rod (15) is provided with the traction device (151).

6. A testing method for a sunshade testing machine according to any one of claims 1 to 5, characterized in that: The following detection methods are included: S1 Inspection of the awning (2) ① Install the sunshade (2) on the support rod one (171), set the distance that the cross bar (21) is pulled out of the support rod one (171) to h4, where h4 is half of the maximum distance that the cross bar (21) can be pulled out of the support rod one (171), and two ropes (4) are led out from the guide wheel two (131), bypass the guide wheel four (161) and hang on the cross bar (21). The force applied by the ropes (4) to the cross bar (21) is F4 in a vertical upward or vertical downward direction, where F4=Fn / 4, and Fn is the rated detection force value; ② The distance that the cross bar (21) is pulled out of the support rod (171) is set to h3, where h3 is the maximum distance that the cross bar (21) can be pulled out of the support rod (171), and 6 rope bodies (4) are used to hang the cross bar (21) and apply 6 vertical upward or vertical downward forces, F2=Fn / 4, F1=Fn / 8, F3=Fn / 8, and F1, F2, and F3 are symmetrically distributed along the central axis of the awning 2; S2 Detection of rolling curtain (6) ① Install the rolling curtain (6) between the fixing rod four (18) and the fixing rod five (19); ② The two axial ends of the pull rod 1 (5) are connected to the rope body (4), and the rope body (4) at the two axial ends of the pull rod 1 (5) is guided out from the guide wheel 3 (141). The rope body (4) applies a horizontal force F5 to the two axial ends of the pull rod 1 (5), F5=Fn / 2; S3 Detection of ceiling curtain (7) ① Install the ceiling curtain (7) between the fixing rod 4 (18) and the fixing rod 5 (19), and the pull rod 2 (72) is located below the center of the curtain 2 (71); ② Both ends of the second pull rod (72) extend out of the second curtain (71), and both ends of the second pull rod (72) are respectively connected to the rope body (4), and the rope body (4) is led out from the second guide wheel (131). The two rope bodies (4) apply a vertical upward force F6 to the two axial ends of the second pull rod (72), and F6=Fn / 2.

7. A testing method according to claim 6, characterized in that: In step ① of S1, the force application point of F4 is the connection point between the crossbar (21) and the arm (22), the force application point of F1 is at a distance h1 from the edge line, h1=50mm, the force application point of F3 is at a distance h2 from the central axis L1 of the awning (2), h2=L2 / 8, and L2 is the distance between the two support rods 171.

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