Cross beam, support frame and perovskite coating device

Abstract

The utility model relates to a cross beam, a support frame and a perovskite coating device. The cross beam comprises a hollow main beam; the first reinforcing assembly comprises a first support, a second support and a first reinforcing beam frame, and the first support and the second support are fixedly connected into the hollow main beam and located at the two lengthwise ends of the hollow main beam respectively; one end of the first reinforcing beam frame is rotatably connected to the first support around a first rotating axis, the other end of the first reinforcing beam frame is rotatably connected to the second support around a second rotating axis, and the first rotating axis and the second rotating axis are both parallel to the first direction; the first locking assemblies are arranged at intervals in the lengthwise direction of the hollow main beam, each first locking assembly comprises a first locking rod, the first locking rods are connected to the first reinforcing beam frame, and the two ends of each first locking rod are connected with the two sides, in the second direction, of the hollow main beam correspondingly; the first direction, the second direction and the lengthwise direction of the hollow main beam intersect pairwise.

Description

Technical Field

[0001] The utility model relates to the technical field of perovskite coating, in particular to a crossbeam, a support frame and a perovskite coating device. Background Art

[0002] Solar energy is abundant in resources, green, environmentally friendly and pollution-free, and is one of the new energy sources that is expected to be widely used in the future. In the field of new solar cells, the rapid development of perovskite solar cells in recent years has attracted widespread attention from the scientific research community and the industrial community.

[0003] In the process of preparing perovskite solar cells, it is necessary to coat the perovskite slurry on the substrate (such as glass). Due to the large coating area, thin coating layer and low viscosity of the slurry, the coating process is difficult. Therefore, the movement accuracy of the coating mechanism is extremely high, often requiring micron-level accuracy.

[0004] Traditionally, the coating mechanism is generally installed on the crossbeam of the support frame, and the movement of the support frame drives the coating mechanism to move. However, due to the large coating area, the span of the crossbeam is long, which makes the crossbeam prone to sagging in the middle (i.e., sagging waist), greatly reducing the movement accuracy of the coating mechanism and thus reducing the coating quality. Utility Model Content

[0005] Based on this, it is necessary to provide a beam, support frame and perovskite coating device that improve the above defects, in order to address the problem that the beam in the prior art is prone to sagging in the middle (i.e., sagging waist), which greatly reduces the movement accuracy of the coating mechanism and thus reduces the coating quality.

[0006] A beam comprising:

[0007] Hollow main beam;

[0008] A first reinforcement assembly comprises a first bracket, a second bracket and a first reinforcement beam, wherein the first bracket and the second bracket are both fixedly connected in the hollow main beam and are respectively located at two ends of the longitudinal length of the hollow main beam; one end of the first reinforcement beam is rotatably connected to the first bracket around a first rotation axis, and the other end of the first reinforcement beam is rotatably connected to the second bracket around a second rotation axis, and the first rotation axis and the second rotation axis are both parallel to the first direction; and

[0009] Multiple first locking assemblies are arranged at intervals along the longitudinal direction of the hollow main beam, and each of the first locking assemblies includes a first locking rod, the first locking rod is connected to the first reinforcing beam frame, and the two ends of the first locking rod are respectively connected to the two sides of the hollow main beam in the second direction, and the first direction, the second direction and the longitudinal direction of the hollow main beam intersect each other.

[0010] In one embodiment, the first reinforcing beam frame includes a first reinforcing beam, a second reinforcing beam and a plurality of first connecting rods, the first reinforcing beam and the second reinforcing beam are arranged at intervals along the first direction, and each of the first connecting rods is connected between the first reinforcing beam and the second reinforcing beam;

[0011] The first reinforcement component also includes a first hinge axis and a second hinge axis, one end of the first reinforcement beam and one end of the second reinforcement beam are both hinged to the first bracket through the first hinge axis, and the other end of the first reinforcement beam and the other end of the second reinforcement beam are both hinged to the second bracket through the second hinge axis.

[0012] In one embodiment, the first locking rods of a portion of the first locking assemblies are connected to the first reinforcing beam, and the first locking rods of another portion of the first locking assemblies are connected to the second reinforcing beam.

[0013] In one of the embodiments, each of the first locking components further includes a first screw hole plate, which is fixedly connected to the first reinforcing beam or the second reinforcing beam and is threadedly connected to the first locking rod.

[0014] In one embodiment, each of the first locking components also includes a first buffer elastic member and a first threaded fastener, the hollow main beam has a first side wall and a second side wall opposite to each other in the second direction, one end of the first locking rod passes through the outside of the first side wall and is sleeved with the first buffer elastic member; the other end of the first locking rod passes through the outside of the second side wall and is threadedly connected to the first threaded fastener, and the first buffer elastic member is used to provide a pre-tightening force that causes the first locking rod to have a movement tendency to pass through the first side wall.

[0015] In one of the embodiments, each of the first locking components further includes a first boss gasket, the first boss gasket is sleeved on the first locking rod, and the first buffer elastic member abuts between the first boss gasket and the first side wall.

[0016] In one embodiment, the crossbeam further includes a second reinforcement assembly and a plurality of second locking assemblies; the second reinforcement assembly includes a third bracket, a fourth bracket and a second reinforcement beam frame, the third bracket and the fourth bracket are both fixedly connected to the hollow main beam and are respectively located at both ends of the longitudinal length of the hollow main beam; one end of the second reinforcement beam frame is rotatably connected to the third bracket around a third rotation axis, and the other end of the second reinforcement beam frame is rotatably connected to the fourth bracket around a fourth rotation axis, and the third rotation axis and the fourth rotation axis are both parallel to the second direction; and

[0017] Multiple second locking assemblies are arranged at intervals along the longitudinal direction of the hollow main beam, and each second locking assembly includes a second locking rod, the second locking rod is connected to the second reinforcing beam frame, and the two ends of the second locking rod are respectively connected to the two sides of the hollow main beam in the first direction.

[0018] In one embodiment, the second reinforcement beam frame includes a third reinforcement beam, a fourth reinforcement beam and a plurality of second connecting rods, the third reinforcement beam and the fourth reinforcement beam are arranged at intervals along the second direction, and each of the second connecting rods is connected between the third reinforcement beam and the fourth reinforcement beam;

[0019] The second reinforcement component also includes a third hinge axis and a fourth hinge axis, one end of the third reinforcement beam and one end of the fourth reinforcement beam are hinged to the third bracket through the third hinge axis, and the other end of the third reinforcement beam and the other end of the fourth reinforcement beam are hinged to the fourth bracket through the fourth hinge axis.

[0020] In one embodiment, the second locking rods of a portion of the second locking assemblies are connected to the third reinforcing beam, and the second locking rods of another portion of the second locking assemblies are connected to the fourth reinforcing beam.

[0021] In one of the embodiments, each of the second locking components further includes a second screw hole plate, the second screw hole plate is fixedly connected to the third reinforcement beam or the fourth reinforcement beam, and is threadedly connected to the second locking rod.

[0022] In one embodiment, each of the second locking assemblies further includes a second buffer elastic member and a second threaded fastener, the hollow main beam has a third side wall and a fourth side wall opposite to each other in the first direction, one end of the second locking rod passes through the outside of the third side wall and is sleeved with the second buffer elastic member; the other end of the second locking rod passes through the outside of the fourth side wall and is threadedly connected to the second threaded fastener, and the second buffer elastic member is used to provide a pre-tightening force that causes the second locking rod to have a movement tendency to pass through the third side wall.

[0023] In one embodiment, each of the second locking assemblies further includes a second boss gasket, the second boss gasket is sleeved on the second locking rod, and the second buffer elastic member abuts between the second boss gasket and the third side wall.

[0024] In one embodiment, the second direction, the first direction and the longitudinal direction of the hollow main beam are perpendicular to each other.

[0025] A support frame includes a first lifting unit, a second lifting unit and a crossbeam as described in any of the above embodiments, wherein the longitudinal ends of the hollow main beam are respectively installed on the first lifting unit and the second lifting unit, and the first lifting unit and the second lifting unit are used to drive the hollow main beam to rise or fall.

[0026] A perovskite coating device comprises a base platform, a coating mechanism and a support frame as described in any of the above embodiments;

[0027] The first lifting unit and the second lifting unit are movably connected to the base platform, and the coating mechanism is arranged on the hollow main beam.

[0028] The above-mentioned crossbeam, support frame and perovskite coating device, when actually used, the coating mechanism is installed on the hollow main beam, so that the hollow main beam bears the load in the vertical plane (i.e., the load downward along the second direction). The two ends of the first reinforcing beam frame are rotatably connected to the first bracket and the second bracket, thereby forming a simply supported beam structure. The load downward along the second direction borne by the hollow main beam is transmitted to the first reinforcing beam frame through the first locking rods of each first locking assembly, so that the first reinforcing beam frame produces elastic deformation (i.e., the two ends of the first reinforcing beam frame rotate around the first rotation axis and the second rotation axis respectively by a certain angle), thereby providing multi-point support for the hollow main beam, and utilizing the elastic deformation of the first reinforcing beam frame to absorb the deformation of the hollow main beam, thereby greatly improving the bending moment resistance of the hollow main beam, avoiding the collapse of the hollow main beam, and being conducive to improving the movement accuracy of the coating mechanism, thereby improving the coating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a front view of a crossbeam in one embodiment of the utility model;

[0030] Figure 2 for Figure 1 A top view of the beam shown;

[0031] Figure 3 for Figure 1 A side view of the beam shown;

[0032] Figure 4 for Figure 1 A cross-sectional view of the beam shown along the AA direction;

[0033] Figure 5 for Figure 2 A cross-sectional view of the beam shown along direction BB;

[0034] Figure 6 for Figure 1 A partial cross-sectional view of the first locking assembly of the cross beam shown;

[0035] Figure 7 for Figure 1 A partial cross-sectional view of the second locking assembly of the beam is shown. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0042] See also Figures 1 to 5 An embodiment of the utility model provides a cross beam, including a hollow main beam 10, a first reinforcement component 20 (see Figure 4 or Figure 5 ) and a plurality of first locking assemblies 30. The first reinforcement assembly 20 includes a first bracket 21, a second bracket 22 and a first reinforcement beam frame 23. The first bracket 21 and the second bracket 22 are both installed in the hollow main beam 10 and are respectively located at the two ends of the longitudinal length of the hollow main beam 10. One end of the first reinforcement beam frame 23 is rotatably connected to the first bracket 21 around a first rotation axis, and the other end of the first reinforcement beam frame 23 is rotatably connected to the second bracket 22 around a second rotation axis, so that the first reinforcement beam frame 23 forms a simply supported beam structure. The first rotation axis and the second rotation axis are both parallel to the first direction X1. A plurality of first locking assemblies 30 are arranged at intervals along the longitudinal direction of the hollow main beam 10. Each first locking assembly 30 includes a first locking rod 31, which is fixedly connected to the first reinforcement beam frame 23, and the two ends of the first locking rod 31 are respectively fixedly connected to the two sides of the hollow main beam 10 in the second direction X2. The first direction X1, the second direction X2 and the longitudinal direction of the hollow main beam 10 intersect each other. Preferably, the first direction X1, the second direction X2 and the longitudinal direction of the hollow main beam 10 are perpendicular to each other.

[0043] The above-mentioned crossbeam, when in actual use, the coating mechanism is installed on the hollow main beam 10, so that the hollow main beam 10 bears the load in the vertical plane (i.e., the load downward along the second direction X2). The two ends of the first reinforcing beam frame 23 are rotatably connected to the first bracket 21 and the second bracket 22, thereby forming a simply supported beam structure. The load downward along the second direction X2 borne by the hollow main beam 10 is transmitted to the first reinforcing beam frame 23 through the first locking rods 31 of each first locking assembly 30, so that the first reinforcing beam frame 23 produces elastic deformation (i.e., the two ends of the first reinforcing beam frame 23 rotate around the first rotation axis and the second rotation axis respectively by a certain angle), thereby providing multi-point support for the hollow main beam 10, and utilizing the elastic deformation of the first reinforcing beam frame 23 to absorb the deformation of the hollow main beam 10, thereby greatly improving the bending moment resistance of the hollow main beam 10, avoiding the collapse of the hollow main beam 10, and being conducive to improving the movement accuracy of the coating mechanism, thereby improving the coating quality.

[0044] In the embodiment of the present application, the first reinforcing beam frame 23 includes a first reinforcing beam 231, a second reinforcing beam 232 and a plurality of first connecting rods 233. The first reinforcing beam 231 and the second reinforcing beam 232 are arranged at intervals along the first direction X1, and each first connecting rod 233 is connected between the first reinforcing beam 231 and the second reinforcing beam 232, so that the first reinforcing beam 231 and the second reinforcing beam 232 are connected as a whole. The first reinforcing assembly 20 also includes a first hinge shaft 24 and a second hinge shaft 25. One end of the first reinforcing beam 231 and one end of the second reinforcing beam 232 are both hinged to the first bracket 21 through the first hinge shaft 24. It can be understood that the axis of the first hinge shaft 24 is the above-mentioned first rotation axis. The other end of the first reinforcing beam 231 and the other end of the second reinforcing beam 232 are both hinged to the second bracket 22 through the second hinge shaft 25, and the axis of the second hinge shaft 25 is the above-mentioned second rotation axis. In this way, the first reinforcing beam 231 and the second reinforcing beam 232 are connected into a whole by using multiple first connecting rods 233, and the whole is hinged to the first bracket 21 and the second bracket 22 through the first hinge shaft 24 and the second hinge shaft 25 respectively, thereby improving the bending moment resistance of the first reinforcing beam frame 23, and further improving the bending moment resistance of the hollow main beam 10.

[0045] See also Figure 5 and Figure 6 As shown, further, the first locking rods 31 of some first locking assemblies 30 are fixedly connected to the first reinforcing beam 231, and the first locking rods 31 of the other first locking assemblies 30 are connected to the second reinforcing beam 232. In this way, the downward load along the second direction X2 borne by the hollow main beam 10 is transmitted to the first reinforcing beam 231 and the second reinforcing beam 232 through each first locking rod 31, ensuring that the hollow main beam 10 can be better supported at multiple points, thereby improving the moment resistance of the hollow main beam 10.

[0046] Furthermore, each first locking assembly 30 further includes a first screw hole plate 32. The first screw hole plate 32 is fixedly connected to the first reinforcing beam 231 or the second reinforcing beam 232, and is threadedly connected to the first locking rod 31, thereby achieving a fixed connection between the first locking rod 31 and the first reinforcing beam 231 or the second reinforcing beam 232. Optionally, the first screw hole plate 32 is welded and fixed to the first reinforcing beam 231 or the second reinforcing beam 232.

[0047] Specifically in the embodiment, each first locking assembly 30 also includes a first buffer elastic member 33 and a first threaded fastener 34. The hollow main beam 10 has a first side wall 11 and a second side wall 12 that are opposite to each other in the second direction X2. One end of the first locking rod 31 passes through the outer side of the first side wall 11 of the hollow main beam 10, and is sleeved with the first buffer elastic member 33. The other end of the first locking rod 31 passes through the outer side of the second side wall 12 of the hollow main beam 10, and is threadedly connected to the first threaded fastener 34. The first buffer elastic member 33 is used to provide a pre-tightening force that causes the first locking rod 31 to have a movement tendency to penetrate to the outer side of the first side wall 11. Optionally, the first threaded fastener 34 can be a nut. The first buffer elastic member 33 can be a compression spring.

[0048] In this way, when the hollow main beam 10 generates downward bending deformation in the middle due to the downward load along the second direction X2, the bending deformation is transmitted to the first reinforcing beam frame 23 through each of the first locking rods 31, the first buffer elastic member 33 and the first screw hole plate 32, so that the first reinforcing beam frame 23 also generates downward bending deformation in the middle. Since the first reinforcing beam frame 23 generates downward bending deformation in the middle, the first reinforcing beam frame 23 generates an upward reaction force along the second direction X2. The upward reaction force along the second direction X2 is transmitted to the hollow main beam 10 through each of the first screw hole plates 32, the first locking rod 31 and the first buffer elastic member 33, so that the upward reaction force along the second direction X2 corrects the downward bending deformation in the middle of the hollow main beam 10, thereby greatly improving the bending moment resistance of the hollow main beam 10 in the vertical plane and avoiding the phenomenon of waist collapse.

[0049] Furthermore, each first locking assembly 30 further includes a first boss gasket 35. The first boss gasket 35 is sleeved on the first locking rod 31, and the first buffer elastic member 33 abuts between the first boss gasket 35 and the first side wall 11. Thus, when the first threaded fastener 34 is locked, the first buffer elastic member 33 is compressed between the first boss gasket 35 and the first side wall 11 of the hollow main beam 10, so that the first reinforcing beam frame 23 is locked with the first side wall 11 and the second side wall 12 of the hollow main beam 10 by the pre-tightening force provided by the first buffer elastic member 33.

[0050] It should be noted that in the prior art, in addition to the bending deformation of the middle part of the beam (i.e., bending deformation in the vertical plane), the center of gravity of the beam and the load thereon may deviate from the geometric center of the beam due to the uncertain position of the load, resulting in the beam also being able to bend and deform in the horizontal plane. It should be noted that in this application, the vertical plane refers to a plane parallel to both the longitudinal direction and the second direction X2 of the hollow main beam 10, and the horizontal plane refers to a plane parallel to both the longitudinal direction and the first direction X1 of the hollow main beam 10.

[0051] See also Figures 1 to 5 As shown, in order to prevent the crossbeam from bending and deforming in the horizontal plane, in this embodiment, the crossbeam also includes a second reinforcement assembly 40 and a plurality of second locking assemblies 50. The second reinforcement assembly 40 includes a third bracket 41, a fourth bracket 42 and a second reinforcement beam frame 43. The third bracket 41 and the fourth bracket 42 are both fixedly connected to the hollow main beam 10 and are respectively located at the longitudinal ends of the hollow main beam 10. One end of the second reinforcement beam frame 43 is rotatably connected to the third bracket 41 around the third rotation axis, and the other end of the second reinforcement beam frame 43 is rotatably connected to the fourth bracket 42 around the fourth rotation axis, so that the second reinforcement beam frame 43 forms a simply supported beam structure. The third rotation axis and the fourth rotation axis are both parallel to the second direction X2. A plurality of second locking assemblies 50 are arranged at intervals along the longitudinal direction of the hollow main beam 10. Each second locking assembly 50 includes a second locking rod 51 , which is connected to the second reinforcing beam frame 43 , and two ends of the second locking rod 51 are respectively fixedly connected to two sides of the hollow main beam 10 in the first direction X1 .

[0052] In actual use, the coating mechanism is installed on the hollow main beam 10, so that the center of gravity of the crossbeam and the coating mechanism deviates from the geometric center of the hollow main beam 10 along the first direction X1, so that the load borne by the hollow main beam 10 has a partial load along the first direction X1. The two ends of the second reinforcing beam frame 43 are rotatably connected to the third bracket 41 and the fourth bracket 42, respectively, so as to form a simply supported beam structure. The partial load along the first direction X1 borne by the hollow main beam 10 is transmitted to the second reinforcing beam frame 43 through the second locking rods 51 of each second locking assembly 50, so that the second reinforcing beam frame 43 is elastically deformed (that is, the two ends of the second reinforcing beam frame 43 are respectively rotated around the third rotation axis and the fourth rotation axis by a certain angle), so as to support the hollow main beam 10 at multiple points, and the elastic deformation of the second reinforcing beam frame 43 is used to absorb the bending deformation of the hollow main beam 10, greatly improving the bending moment resistance of the hollow main beam 10 in the horizontal plane, which is conducive to improving the movement accuracy of the coating mechanism, and then improving the coating quality.

[0053] It should be noted that, in the present application, the bending moment resistance of the hollow main beam 10 in the vertical plane is improved by the first reinforcement assembly 20 and each first locking assembly 30, and the bending deformation degree of the hollow main beam 10 in the vertical plane is greatly reduced. The bending moment resistance of the hollow main beam 10 in the horizontal plane is improved by the second reinforcement assembly 40 and multiple second locking assemblies 50, and the bending deformation degree of the hollow main beam 10 in the horizontal plane is greatly reduced.

[0054] See also Figure 5 and Figure 7 In some embodiments, the second reinforcing beam frame 43 includes a third reinforcing beam 431, a fourth reinforcing beam 432 and a plurality of second connecting rods 433. The third reinforcing beam 431 and the fourth reinforcing beam 432 are arranged at intervals along the second direction X2, and each second connecting rod 433 is connected between the third reinforcing beam 431 and the fourth reinforcing beam 432, so that the third reinforcing beam 431 and the fourth reinforcing beam 432 are connected as a whole. The second reinforcing assembly 40 also includes a third hinge shaft 44 and a fourth hinge shaft 45. One end of the third reinforcing beam 431 and one end of the fourth reinforcing beam 432 are both hinged to the third bracket 41 through the third hinge shaft 44. It can be understood that the axis of the third hinge shaft 44 is the third rotation axis mentioned above. The other end of the third reinforcing beam 431 and the other end of the fourth reinforcing beam 432 are both hinged to the fourth bracket 42 through the fourth hinge shaft 45, and the axis of the fourth hinge shaft 45 is the fourth rotation axis mentioned above. In this way, the third reinforcing beam 431 and the fourth reinforcing beam 432 are connected into a whole by using multiple second connecting rods 433, and the whole is hinged to the third bracket 41 and the fourth bracket 42 through the third hinge shaft 44 and the fourth hinge shaft 45 respectively, thereby improving the bending moment resistance of the second reinforcing beam frame 43, and further improving the bending moment resistance of the hollow main beam 10.

[0055] Furthermore, the second locking rods 51 of some second locking assemblies 50 are fixedly connected to the third reinforcing beam 431, and the second locking rods 51 of other second locking assemblies 50 are connected to the fourth reinforcing beam 432. In this way, the load borne by the hollow main beam 10 is transmitted to the third reinforcing beam 431 and the fourth reinforcing beam 432 through each second locking rod 51, ensuring that the hollow main beam 10 can be better supported at multiple points.

[0056] Further, each second locking assembly 50 further includes a second screw hole plate 52. The second screw hole plate 52 is fixedly connected to the third reinforcing beam 431 or the fourth reinforcing beam 432, and is threadedly connected to the second locking rod 51, thereby achieving a fixed connection between the second locking rod 51 and the third reinforcing beam 431 or the fourth reinforcing beam 432. Optionally, the second screw hole plate 52 is welded and fixed to the third reinforcing beam 431 or the fourth reinforcing beam 432.

[0057] Specifically in the embodiment, each second locking assembly 50 also includes a second buffer elastic member 53 and a second threaded fastener 55. The hollow main beam 10 has a third side wall 13 and a fourth side wall 14 that are opposite to each other in the first direction X1. One end of the second locking rod 51 passes through the outer side of the third side wall 13 of the hollow main beam 10, and is sleeved with the second buffer elastic member 53. The other end of the second locking rod 51 passes through the outer side of the fourth side wall 14 of the hollow main beam 10, and is threadedly connected to the second threaded fastener 55. The second buffer elastic member 53 is used to provide a pre-tightening force that causes the second locking rod 51 to have a movement tendency to penetrate to the outer side of the third side wall 13. Optionally, the second threaded fastener 55 can be a nut. The second buffer elastic member 53 can be a compression spring.

[0058] In this way, when the hollow main beam 10 generates bending deformation in the horizontal plane due to the load, the bending deformation in the horizontal plane is transmitted to the second reinforcing beam frame 43 through each second locking rod 51, the second buffer elastic member 53 and the second screw hole plate 52, so that the second reinforcing beam frame 43 also generates bending deformation in the horizontal plane. Since the second reinforcing beam frame 43 generates elastic deformation in the horizontal plane, the second reinforcing beam frame 43 generates a reverse force. The reverse force is transmitted to the hollow main beam 10 through each second screw hole plate 52, the second locking rod 51 and the second buffer elastic member 53, so that the reverse force corrects the bending deformation in the horizontal plane of the hollow main beam 10, thereby greatly improving the bending moment resistance of the hollow main beam 10 in the horizontal plane, which is conducive to improving the movement accuracy of the coating mechanism, and then improving the coating quality.

[0059] Furthermore, each second locking assembly 50 further includes a second boss gasket 54. The second boss gasket 54 is sleeved on the second locking rod 51, and the second buffer elastic member 53 abuts between the second boss gasket 54 and the third side wall 13. In this way, when the second threaded fastener 55 is locked, the second buffer elastic member 53 is compressed between the second boss gasket 54 and the third side wall 13 of the hollow main beam 10, so that the second reinforcing beam frame 43 is locked with the third side wall 13 and the fourth side wall 14 of the hollow main beam 10 by the pre-tightening force provided by the second buffer elastic member 53.

[0060] Based on the above-mentioned crossbeam, the utility model also provides a support frame, including a first lifting unit, a second lifting unit and a crossbeam as described in any of the above embodiments. A first mounting seat 100 and a second mounting seat 101 are respectively installed at both ends of the longitudinal length of the hollow main beam 10. The first mounting seat 100 is installed on the first lifting unit. The second mounting seat 101 is installed on the second lifting unit. The first lifting unit and the second lifting unit are used to drive the hollow main beam 10 to rise or fall, thereby driving the coating mechanism installed on the hollow main beam 10 to rise or fall to complete the coating action. It should be noted that the first lifting unit, the second lifting unit and the crossbeam form a gantry structure.

[0061] Based on the above support frame, the utility model also provides a perovskite coating device, including a base platform, a coating mechanism and a support frame as described in any of the above embodiments. The first lifting unit and the second lifting unit are movably connected to the base platform, and the coating mechanism is arranged on the hollow main beam 10.

[0062] Furthermore, the base platform has two tracks parallel to each other, and the first lifting unit and the second lifting unit are respectively arranged on the two tracks, so that the first lifting unit and the second lifting unit can move along the two tracks, thereby driving the hollow main beam 10 and the coating mechanism to move, so that the coating mechanism completes the coating operation.

[0063] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A beam, characterized in that: include: Hollow main beam; A first reinforcement assembly comprises a first bracket, a second bracket and a first reinforcement beam, wherein the first bracket and the second bracket are both fixedly connected in the hollow main beam and are respectively located at two ends of the longitudinal length of the hollow main beam; one end of the first reinforcement beam is rotatably connected to the first bracket around a first rotation axis, and the other end of the first reinforcement beam is rotatably connected to the second bracket around a second rotation axis, and the first rotation axis and the second rotation axis are both parallel to the first direction; and Multiple first locking assemblies are arranged at intervals along the longitudinal direction of the hollow main beam, and each of the first locking assemblies includes a first locking rod, the first locking rod is connected to the first reinforcing beam frame, and the two ends of the first locking rod are respectively connected to the two sides of the hollow main beam in the second direction, and the first direction, the second direction and the longitudinal direction of the hollow main beam intersect each other.

2. The crossbeam according to claim 1, characterized in that The first reinforcement beam frame includes a first reinforcement beam, a second reinforcement beam and a plurality of first connecting rods, the first reinforcement beam and the second reinforcement beam are arranged at intervals along the first direction, and each of the first connecting rods is connected between the first reinforcement beam and the second reinforcement beam; The first reinforcement component also includes a first hinge axis and a second hinge axis, one end of the first reinforcement beam and one end of the second reinforcement beam are both hinged to the first bracket through the first hinge axis, and the other end of the first reinforcement beam and the other end of the second reinforcement beam are both hinged to the second bracket through the second hinge axis.

3. The crossbeam according to claim 2, characterized in that: The first locking rods of a portion of the first locking assemblies are connected to the first reinforcing beam, and the first locking rods of another portion of the first locking assemblies are connected to the second reinforcing beam.

4. The crossbeam according to claim 3, characterized in that: Each of the first locking components further includes a first screw hole plate, which is fixedly connected to the first reinforcing beam or the second reinforcing beam and is threadedly connected to the first locking rod.

5. The crossbeam according to any one of claims 1 to 4, characterized in that: Each of the first locking assemblies further includes a first buffer elastic member and a first threaded fastener, the hollow main beam has a first side wall and a second side wall opposite to each other in the second direction, one end of the first locking rod penetrates to the outside of the first side wall and is sleeved with the first buffer elastic member; The other end of the first locking rod passes through the outside of the second side wall and is threadedly connected to the first threaded fastener. The first buffer elastic member is used to provide a pre-tightening force that enables the first locking rod to have a movement tendency to pass through the first side wall.

6. The crossbeam according to claim 5, characterized in that Each of the first locking assemblies further includes a first boss gasket, the first boss gasket is sleeved on the first locking rod, and the first buffer elastic member abuts between the first boss gasket and the first side wall.

7. The crossbeam according to claim 1, characterized in that The cross beam further includes a second reinforcement assembly and a plurality of second locking assemblies; the second reinforcement assembly includes a third bracket, a fourth bracket and a second reinforcement beam frame, the third bracket and the fourth bracket are both fixedly connected to the hollow main beam and are respectively located at both ends of the longitudinal length of the hollow main beam; one end of the second reinforcement beam frame is rotatably connected to the third bracket around a third rotation axis, and the other end of the second reinforcement beam frame is rotatably connected to the fourth bracket around a fourth rotation axis, and the third rotation axis and the fourth rotation axis are both parallel to the second direction; Multiple second locking assemblies are arranged at intervals along the longitudinal direction of the hollow main beam, and each second locking assembly includes a second locking rod, the second locking rod is connected to the second reinforcing beam frame, and the two ends of the second locking rod are respectively connected to the two sides of the hollow main beam in the first direction.

8. The crossbeam according to claim 7, characterized in that The second reinforcement beam frame includes a third reinforcement beam, a fourth reinforcement beam and a plurality of second connecting rods, the third reinforcement beam and the fourth reinforcement beam are arranged at intervals along the second direction, and each of the second connecting rods is connected between the third reinforcement beam and the fourth reinforcement beam; The second reinforcement component also includes a third hinge axis and a fourth hinge axis, one end of the third reinforcement beam and one end of the fourth reinforcement beam are hinged to the third bracket through the third hinge axis, and the other end of the third reinforcement beam and the other end of the fourth reinforcement beam are hinged to the fourth bracket through the fourth hinge axis.

9. The crossbeam according to claim 8, characterized in that The second locking rods of a portion of the second locking assemblies are connected to the third reinforcing beam, and the second locking rods of another portion of the second locking assemblies are connected to the fourth reinforcing beam.

10. The crossbeam according to claim 9, characterized in that Each of the second locking components further includes a second screw hole plate, which is fixedly connected to the third reinforcing beam or the fourth reinforcing beam and is threadedly connected to the second locking rod.

11. The crossbeam according to any one of claims 7 to 10, characterized in that: Each of the second locking assemblies also includes a second buffer elastic member and a second threaded fastener. The hollow main beam has a third side wall and a fourth side wall opposite to each other in the first direction. One end of the second locking rod passes through the outside of the third side wall and is sleeved with the second buffer elastic member. The other end of the second locking rod passes through the outside of the fourth side wall and is threadedly connected to the second threaded fastener. The second buffer elastic member is used to provide a pre-tightening force that causes the second locking rod to have a movement tendency to pass through the third side wall.

12. The crossbeam according to claim 11, characterized in that Each of the second locking assemblies further includes a second boss gasket, the second boss gasket is sleeved on the second locking rod, and the second buffer elastic member abuts between the second boss gasket and the third side wall.

13. The crossbeam according to claim 1, characterized in that The second direction, the first direction and the longitudinal direction of the hollow main beam are perpendicular to each other.

14. A support frame, characterized in that: It comprises a first lifting unit, a second lifting unit and the crossbeam as described in any one of claims 1 to 13, wherein the longitudinal ends of the hollow main beam are respectively mounted on the first lifting unit and the second lifting unit, and the first lifting unit and the second lifting unit are used to drive the hollow main beam to rise or fall.

15. A perovskite coating device, characterized in that: It comprises a base platform, a coating mechanism and a support frame as claimed in claim 14; The first lifting unit and the second lifting unit are movably connected to the base platform, and the coating mechanism is arranged on the hollow main beam.

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