Foldable wind-guiding rainproof device

Abstract

The device comprises a transverse supporting frame connected with an air outlet of a load cabinet and a square bottom frame fixedly arranged on the supporting frame, the bottom frame is sequentially sleeved with an n-shaped middle frame and a louver, and after the middle frame and the louver are unfolded in a fan shape, the middle frame and the louver are folded to form a fan shape. The bottom frame, the middle frame and the blind window internally form a bent air channel larger than or equal to 90 degrees, and the blind window is opened and is transversely or downwards inclined. And after the middle frame and the blind window are folded, the blind window is closed. When the load cabinet works, the middle frame and the shutters are unfolded in a fan shape, and after the shutters are opened, normal ventilation and heat dissipation of the load cabinet can be guaranteed. When the load cabinet stops running, the middle frame and the shutter are folded, and the shutter is closed. Rainwater and other sundries are prevented from entering the load cabinet. The foldable load cabinet occupies a small space after being folded, is not easy to collide, can reduce the overall size of the load cabinet, reduces the occupied space, and is more convenient to transport.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation duct systems, and in particular to a foldable wind-guiding and rain-proof device. Background Art

[0002] The load cabinet is a widely used electrical testing equipment, mainly used to detect and inspect the performance and reliability of various generators. The load cabinet can simulate the load state of various power systems, so that the power equipment can be tested and inspected in a real working environment. Since most load boxes need to simulate high-power loads, the heat generated is also very large. Usually, there are one or more fans and one or more air outlets inside the load cabinet to dissipate heat. Usually, the working environment of the load cabinet is complex. Some load cabinets are operated outdoors for a long time, and their air outlets cannot be rainproof, or although a rain cover is provided, the rain cover is too large. Since it cannot be folded, the overall height or volume of the load cabinet is too large, which makes it inconvenient to transport. It also occupies a large space when stored, which makes it inconvenient to transport and easy to be bumped.

[0003] In addition, if the load cabinet stops running, the corresponding fan used for heat dissipation will also stop running, and rainwater and other debris (such as dust, leaves, insects and small animals, etc.) from the outside will enter the load cabinet through the air outlet, which can easily cause the load cabinet to malfunction.

[0004] The patent application with publication number CN221428268U discloses an improved high-voltage control cabinet, including a cabinet body and a rain cover slidably mounted on the cabinet body. The rain cover can be installed when in use to achieve a rainproof function. The rain cover can be removed when the control cabinet is transported. Since the rain cover will be separated from the cabinet body when removed, it is easy to cause the rain cover to be lost, and the air outlet of the cabinet body will not be closed when the control cabinet stops running, and it is easy for debris to enter.

[0005] The patent application with publication number CN114421335A discloses a mechatronic switchboard protection device, in which a folding canopy is provided on the top of the switchboard body and is lifted and lowered by a cylinder. When the switchboard is working, the folding canopy is lifted by the cylinder to prevent rainwater from entering the switchboard body and affecting the use of the switchboard. Since the folding canopy is driven by a cylinder, it needs to be equipped with a corresponding compressed air source, and it cannot be used normally without a corresponding compressed air source. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a foldable wind-guiding and rain-proof device, which is used to solve the problem that the overall size of the load cabinet is too large due to the installation of a rain cover, resulting in inconvenience in transportation and large space occupied during storage.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A foldable wind-guiding and rain-proof device comprises a horizontal support frame and a U-shaped bottom frame fixedly arranged on the support frame, a door-shaped middle frame and shutters are sequentially sleeved outside the bottom frame, the sides of the bottom frame, the middle frame and the shutters gradually increase in size from the inside to the outside, the bottom frame, the middle frame and the shutters are nested in sequence to form a fan shape, and the inner ends of the bottom frame, the middle frame and the shutters are rotatably connected to the bottom frame; after the middle frame and the shutters are unfolded in a fan shape, a curved air duct greater than or equal to 90 degrees is formed inside the bottom frame, the middle frame and the shutters, the shutters are opened and the shutters are oriented horizontally or tilted downward; after the middle frame and the shutters are folded, the shutters are closed.

[0009] Furthermore, the shutters include a door-shaped window frame that is sleeved outside the corresponding middle frame and a plurality of transverse rectangular blades arranged between two side panels of the window frame, the size of the side panels gradually increases from the inside to the outside, the inner ends of the side panels are hinged to the bottom frame, the blades are parallel to each other, the inner corners of the blades are rotatably connected to the side panels of the window frame, a pull strip is provided between the blades and the side panels, the outer corners of the blades are rotatably connected to the pull strip, a connecting rod is provided at one end of the pull strip close to the rotation center of the shutter, one end of the connecting rod is rotatably connected to the pull strip, and the other end is rotatably connected to the bottom frame, the rotational connection position of the connecting rod and the bottom frame is located on the side of the rotation axis of the shutter away from the air duct, and after the middle frame and the shutter are folded, the blades overlap each other.

[0010] Furthermore, the side of the top plate of the window frame close to the middle frame is a second inner turn-over edge turned inward, the side of the frame plate at the top of the middle frame close to the window frame is a first outer turn-over edge turned outward, and the side of the frame plate at the top of the middle frame away from the window frame is a first inner turn-over edge turned inward; after the middle frame and the blinds are fan-shaped, the second inner turn-over edge overlaps with the corresponding first outer turn-over edge, and the first inner turn-over edges and the first outer turn-over edges on the two adjacent middle frames overlap.

[0011] Furthermore, a side of the top plate of the bottom frame close to the middle frame is a third outer flange turned outward; after the middle frame and the shutter are fan-shaped, the third outer flange overlaps with the first inner flange on the corresponding middle frame.

[0012] Furthermore, a side of the blade close to the side plate is an end plate, and the end plate is hinged to the tie rod.

[0013] Furthermore, the edges of the blades away from the middle frame are turned downward, and the edges of the blades close to the middle frame are turned upward. After the bottom frame, the middle frame and the shutter are folded, the downward-turned edges of the blades overlap the upward-turned edges of the adjacent blades.

[0014] Furthermore, a reduction motor is fixedly connected to the outer side of the support frame, a rotating shaft is rotatably connected to the support frame, the shutter is fixedly connected to the rotating shaft, and the reduction motor is drivingly connected to the rotating shaft.

[0015] Furthermore, a travel switch is fixedly connected to the outside of the support frame, and after the middle frame and the shutter are folded, the shutter abuts against the travel switch.

[0016] The positive effects of the present invention are:

[0017] The present invention is provided with a support frame, on which a bottom frame, an intermediate frame and a louver are sequentially arranged, and the bottom frame is installed at the air outlet of the load cabinet. When the load cabinet is working, the intermediate frame and the louver are sequentially unfolded in a fan shape, and after the louver is opened, normal ventilation and heat dissipation of the load cabinet can be ensured. Since the hot air in the load cabinet is blown out from the louver through the air duct inside the intermediate frame, and the air outlet of the louver is slightly inclined downward, rainwater and other debris will not enter the load cabinet through the air duct, thereby ensuring the normal operation of the load cabinet. When the load cabinet stops running, the intermediate frame and the louver are folded, and the louver is closed. The top surface of the louver after closing is in an inclined state, so that rainwater falling on the louver will flow out, and other debris will not enter the load cabinet through the louver, thereby preventing the load cabinet from malfunctioning when it is running again. At the same time, the space occupied by the present invention after folding is very small, it is not easy to be bumped, and the overall size of the load cabinet can be reduced, the space occupation is reduced, and transportation is also more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a stereogram of the present invention after being unfolded;

[0019] Figure 2 is a schematic structural diagram of the shutter after unfolding of the present invention;

[0020] Figure 3 is a cross-sectional view of the present invention after expansion;

[0021] Figure 4 Figure 3 A partial enlarged view of the middle I part;

[0022] Figure 5 yes Figure 3 A partial enlarged view of the middle II part;

[0023] Figure 6 Stereoscopic image of the middle frame;

[0024] Figure 7 It is from left to right Figure 2 A perspective view of the middle shutter;

[0025] Figure 8 is a schematic diagram of the interior of the blind after the window frame is removed after the blind is unfolded;

[0026] Fig. 9 is a cross-sectional view of the shutter after unfolding of the present invention;

[0027] Fig.10 is a schematic diagram of the present invention after folding;

[0028] Fig.11 is a cross-sectional view of the present invention after folding;

[0029] In the figure:

[0030] 1. Support frame; 2. Bottom frame; 3. Middle frame; 4. Shutter; 5. Gear motor; 6. Mounting plate; 7. Travel switch; 8. Window frame; 9. Blades; 10. Pull rod; 11. Rotating shaft; 12. Mounting seat; 13. First outer flange; 14. First inner flange; 15. Frame plate; 16. Second inner flange; 17. End plate; 18. Third outer flange; 19. Connecting rod; 20. Side plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. The described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0032] Example 1

[0033] like Figures 1 to 6 As shown, a foldable wind-guiding and rain-proof device comprises a horizontal support frame 1 and a bottom frame 2 with a U-shaped cross section riveted on the support frame 1, the bottom frame 2 is sequentially covered with a door-shaped middle frame 3 and a shutter 4, the side of the bottom frame 2 is a right-angled trapezoid with the large end facing outward, the side of the middle frame 3 is an isosceles triangle with the bottom edge facing outward, and the middle frame 3 is seven nested in sequence in a fan shape, and the inner ends of the bottom frame 2, the middle frame 3 and the shutter 4 (i.e., the end close to the center of the fan shape) are hinged to the support frame 1. The support frame 1 is welded by a square tube 1 to form a rectangular frame structure, and the bottom frame 2 and the middle frame 3 are both cut and bent from plates. When the middle frame 3 and the shutter 4 are unfolded in a fan shape, the inside is a fan-shaped curved air duct greater than 90 degrees, at which time the shutter 4 is open and the right side of the shutter 4 is slightly tilted downward. When the middle frame 3 and the shutter 4 are folded as shown in the figure, the inner end of the bottom frame 2, the middle frame 3 and the shutter 4 are hinged to the support frame 1. Fig.10 After the state shown, the shutter 4 is closed.

[0034] In actual installation, the bottom of the bottom frame 2 is fixed to the air outlet of the load cabinet by screws. When the load cabinet is working, the seven middle frames 3 and the shutters 4 are unfolded in a fan shape, and the shutters 4 are opened, so as to ensure the normal heat dissipation of the load cabinet. Since the hot air in the load cabinet is blown out from the shutters 4 through the air duct, and the air outlet of the shutters 4 is slightly tilted downward, rainwater and other debris will not enter the load cabinet through the air duct, thereby ensuring the normal operation of the load cabinet.

[0035] When the load cabinet stops running, the seven middle frames 3 and the shutters 4 are folded into Fig.10 In the state shown, the shutter 4 is closed, and the top surface of the shutter 4 is in an inclined state after closing, so that rainwater falling on the shutter 4 will flow out, and other debris will not enter the load cabinet through the shutter 4, thereby preventing the load cabinet from malfunctioning when it is operated again. At the same time, the space occupied by the present invention after folding is very small, and it is not easy to be bumped, and the overall size of the load cabinet can be reduced, reducing the space occupied, and the transportation is more convenient, and it will not be lost or missed.

[0036] Example 2

[0037] Combination Figures 7 to 9 As shown, this embodiment is improved on the basis of embodiment 1, and the difference between this embodiment and embodiment 1 is that:

[0038] The shutter 4 comprises a window frame 8 with a door-shaped cross section and twelve transverse rectangular blades 9 arranged between two side panels 20 of the window frame 8. The side panel 20 is in the shape of a right-angled trapezoid with the long side facing upwards, and its upper left corner is a right angle. The left position of the bottom of the side panel 20 is hinged to the bottom frame 2, and the left side of the window frame 8 is connected to the corresponding middle frame 3. The blades 9 are parallel to each other, and the blades 9 are perpendicular to the side panels 20. The right end of the blade 20 is slightly inclined downward. The inner corners of the blades 9 (i.e., close to the air duct) are respectively rotatably connected to the corresponding side panels 20. A brace 10 is provided between the blades 9 and the side panels 20, and the outer corners of the blades 9 (i.e., away from the air duct) are respectively hinged to the corresponding brace 10. The pull rod 10 is provided with a connecting rod 19 at one end close to the rotation center of the shutter 4. One end of the connecting rod 19 is hinged to the corresponding lower end of the pull rod 10, and the other end is hinged to the side of the bottom frame 2 corresponding to the bottom frame 2. The hinge position of the connecting rod 19 and the bottom frame 2 is located on the right side of the rotation axis of the shutter 4.

[0039] When the present invention is Figure 1 The status shown is Fig.10 When folded in the state shown, the window frame 4 rotates around its lower end, and at the same time, the connecting rod 19 pulls the tie rod 10, and the tie rod 10 pulls the outer corners of the blades 9, so that the blades 9 overlap each other. The blades 9 form an inclined step shape after overlapping, which facilitates the discharge of rainwater on the blades and prevents rainwater from accumulating on the blades 9.

[0040] Example 3

[0041] like Figures 3 to 5 As shown, this embodiment is further improved on the basis of Embodiment 2. Specifically, the difference between this embodiment and Embodiment 2 is that:

[0042] The frame plate 15 at the top of the window frame 8 has a second inner flange 18 turned inward (i.e., toward the direction of the air duct) on one side close to the middle frame 2, the top plate of the middle frame 3 has a first outer flange 13 turned outward (i.e., away from the direction of the air duct) on one side close to the window frame 8, and the top plate of the middle frame 3 has a first inner flange 14 turned inward on one side away from the window frame 8.

[0043] After the middle frame 3 and the shutter 4 are fan-shaped, the second inner flange 16 overlaps with the corresponding first outer flange 13, the first inner flange 14 on the two adjacent middle frames 3 overlaps with the first outer flange 13, and the top plate of the bottom frame 2 is close to the middle frame 3 on one side thereof as a third outer flange 18 turned outward.

[0044] When the present invention is Fig.10 The status shown is Figure 1 During the unfolding process in the state shown, the window frame 8 rotates, and under the action of the second inner flange 16 and the first outer flange 13, the first outer flange 13 and the first inner flange 14, each intermediate frame 3 is unfolded in sequence. Figure 1 In the state shown, the second inner flange 16 overlaps with the first outer flange 13, the adjacent first outer flange 13 overlaps with the first inner flange 14, and the third outer flange 18 overlaps with the corresponding first inner flange 14, so that a closed air duct is formed inside the bottom frame 2, the middle frame 3 and the window frame 8, preventing falling rainwater from entering the air duct from the connection between the bottom frame 2, the middle frame 3 and the window frame 8, and then entering the load cabinet, causing a load cabinet failure.

[0045] Combination Figure 7 , Figure 8 , Fig. 9 and Fig.11 As shown, the side of the blade 9 close to the side plate 20 is an upwardly turned end plate 17, and the upper left corner of the end plate 17 is hinged to the tie bar 10. After the end plate 17 is provided, it can prevent the hinged position of the blade 9 and the side plate 20 from interfering with the tie bar 10 after the present invention is folded, resulting in gaps between adjacent blades 9, thereby causing poor sealing and causing rainwater or other debris to enter the load cabinet through the gap.

[0046] like Fig. 9As shown, the left edge of the blade 9 (i.e., the edge away from the middle frame 3) is turned down, the right edge of the blade 9 (i.e., the edge close to the middle frame 3) is turned up, and the bottom of the left edge of the blade 9 is rotatably connected to the corresponding side plate 20. Therefore, when the bottom frame 2, the middle frame 3 and the shutter 4 are folded to the position shown in FIG. Fig.10 and Fig.11 After the state shown, the downwardly turned edge of the blade 9 overlaps the upwardly turned edge of the adjacent blade 9 to form an inclined surface, thereby further improving the sealing between the two adjacent blades 9 and preventing the entry of rainwater.

[0047] Example 4

[0048] like Figure 1 and Figure 2 As shown, this embodiment is further improved on the basis of embodiment 3, and the difference between this embodiment and embodiment 3 is that:

[0049] The outer side of the bottom frame 2 is fixedly connected with a mounting seat 12 at a position corresponding to the bottom of the window frame 8, the lower end of the connecting rod 19 is hinged to the mounting seat 12, one side of the bottom frame 2 is fixedly connected with a mounting plate 6, and a rotating shaft 11 is transmitted through the two mounting seats 12, the middle frame 3 is rotatably connected to the rotating shaft 11, the window frame 8 is fixedly connected to the rotating shaft 11, and a reduction motor 5 is fixedly arranged on the mounting plate 6, and the reduction motor 5 is connected to the rotating shaft 11 through a coupling.

[0050] Driven by the reduction motor 5, the window frame 8 can be rotated, thereby realizing the unfolding and folding of the present invention, which is more convenient to control, more rapid in action, and saves time and effort. Since the reduction motor 5 is used for driving, no additional compressed air equipment is required.

[0051] A travel switch 7 is fixedly connected to the outer side of the support frame 1. When the middle frame 3 and the shutter 4 are folded, the shutter 4 abuts against the travel switch 7, triggering the travel switch 7 to stop the reduction motor 5 from rotating, thereby realizing automatic stopping of the reduction motor 5.

[0052] The present invention can be used not only for load cabinets, but also for ventilation and heat dissipation of other electrical control cabinets.

[0053] The above-mentioned embodiments are described in a relatively detailed and specific manner, expressing the preferred embodiments of the present invention, and are only used to illustrate the technical ideas and features of the present invention. The purpose is to enable technicians in this field to understand the contents of the present invention and implement them accordingly, but are not limited to the present invention. The patent scope of the present invention cannot be limited only by this embodiment, that is, any equivalent changes or modifications made to the spirit disclosed by the present invention, for researchers or technicians in this field, without departing from the structure of the present invention, local improvements within the system and changes and conversions between subsystems, etc., are still within the patent scope of the present invention.

Claims

1. A foldable wind-guiding and rain-proof device, characterized in that: It includes a horizontal support frame (1) and a U-shaped bottom frame (2) fixedly arranged on the support frame (1). An inverted U-shaped intermediate frame (3) and a shutter (4) are sequentially sleeved outside the bottom frame (2). The side dimensions of the bottom frame (2), the intermediate frame (3) and the shutter (4) gradually increase from inside to outside. The bottom frame (2), the intermediate frame (3) and the shutter (4) are sequentially nested to form a sector. The inner ends of the bottom frame (2), the intermediate frame (3) and the shutter (4) are all rotatably connected to the bottom frame (2). After the intermediate frame (3) and the shutter (4) are unfolded in a sector shape, a curved air duct with an angle greater than or equal to 90 degrees is formed inside the bottom frame (2), the intermediate frame (3) and the shutter (4). The shutter (4) is opened and the orientation of the shutter (4) is horizontal or inclined downward. After the intermediate frame (3) and the shutter (4) are folded, the shutter (4) is closed.

2. A foldable wind deflector and rain protection device according to claim 1, characterized in that: The shutter (4) includes a U-shaped window frame (8) sleeved outside the corresponding intermediate frame (3) and a plurality of horizontal rectangular blades (9) arranged between two side plates (20) of the window frame (8). The size of the side plates (20) gradually increases from inside to outside. The inner end of the side plate (20) is hinged to the bottom frame (2). The blades (9) are parallel to each other. The inner corners of the blades (9) are all rotatably connected to the side plates (20) of the window frame (8). A stay bar (10) is arranged between the blades (9) and the side plates (20). The outer corners of the blades (9) are all rotatably connected to the stay bar (10). A connecting rod (19) is arranged at one end of the stay bar (10) close to the rotation center of the shutter (4). One end of the connecting rod (19) is rotatably connected to the stay bar (10), and the other end is rotatably connected to the bottom frame (2). The rotation connection position of the connecting rod (19) and the bottom frame (2) is located on the side of the rotation axis of the shutter (4) away from the air duct. After the intermediate frame (3) and the shutter (4) are folded, the blades (9) overlap each other.

3. A foldable wind deflector and rain protection device according to claim 2, characterized in that: One side of the top plate of the window frame (8) close to the intermediate frame (3) is a second inwardly turned edge (16). One side of the frame plate (15) at the top of the intermediate frame (3) close to the window frame (8) is a first outwardly turned edge (13). One side of the frame plate (15) at the top of the intermediate frame (3) away from the window frame (8) is a first inwardly turned edge (14). After the intermediate frame (3) and the shutter (4) are unfolded in a sector shape, the second inwardly turned edge (16) overlaps with the corresponding first outwardly turned edge (13). The first inwardly turned edge (14) and the first outwardly turned edge (13) on two adjacent intermediate frames (3) overlap.

4. A foldable wind deflector and rain protection device according to claim 3, characterized in that: One side of the top plate of the bottom frame (2) close to the intermediate frame (3) is a third outwardly turned edge (18). After the intermediate frame (3) and the shutter (4) are unfolded in a sector shape, the third outwardly turned edge (18) overlaps with the first inwardly turned edge (14) on the corresponding intermediate frame (3).

5. A foldable wind deflector and rain protection device according to claim 2, characterized in that: One side of the blade (9) close to the side plate (20) is an end plate (17), and the end plate (17) is hinged to the stay bar (10).

6. A foldable wind deflector and rain protection device according to claim 2, characterized in that: The edge of the blade (9) away from the middle frame (3) is turned downward, and the edge of the blade (9) close to the middle frame (3) is turned upward. After the bottom frame (2), the middle frame (3) and the shutter (4) are folded, the edge of the blade (9) turned downward overlaps the edge of the adjacent blade (9) turned upward.

7. A foldable wind deflector and rain protection device according to claim 1, characterized in that: A reduction motor (5) is fixedly connected to the outer side of the support frame (1), a rotating shaft (11) is rotatably connected to the support frame (1), the shutter (4) is fixedly connected to the rotating shaft (11), and the reduction motor (5) is drivingly connected to the rotating shaft (11).

8. The foldable wind deflector and rain protection device according to claim 1, characterized in that: A travel switch (7) is fixedly connected to the outside of the support frame (1); after the middle frame (3) and the shutter (4) are folded, the shutter (4) abuts against the travel switch (7).

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