Abstract
The present invention provides a cross beam of a canopy, which addresses the problem that existing cross beams cannot simultaneously ensure convenience of assembly and guarantee stability in use. The present cross beam of a canopy comprises a plurality of hollow elongated beams, an inner side surface of each of the beams has at least one protruding and elongated protrusion along a length direction of the beams, each of the protrusions is provided with an mounting hole or a mounting groove penetrating along the length direction of the beams, at least one long rod is inserted into the mounting holes or the mounting grooves to connect all the beams in series, and two ends of the long rod protrude out of the beams and are detachably connected with a locking fastener respectively. The present invention ensures convenience of installation and guarantees the assembled cross beam has good stability.
Claims
1. A cross beam of a canopy comprising a plurality of hollow elongated beams, wherein an inner side surface of each of the beams has at least one protruding and elongated protrusion along a length direction of the beams, each of the protrusions is provided with a mounting hole or a mounting groove penetrating along the length direction of the beams, at least one long rod is inserted into the mounting holes or the mounting grooves to connect all the beams in series, and two ends of the long rod protrude out of the beams and are detachably connected with a locking fastener respectively.
2. The cross beam of the canopy as claimed in claim 1, wherein all the beams are butted with each other in sequence along the length direction of the beams, end faces of the two adjacent beams are disposed opposite to each other, the end faces of the two adjacent beams are abutted against each other tightly with the locking fastener, and end faces of two ends of each of the protrusions are flush with the end faces of two ends of the beams respectively.
3. The cross beam of the canopy as claimed in claim 2, wherein the locking fastener is a locking nut, the locking fastener is sleeved on the long rod and thread-connected with the long rod, and the locking fastener is capable of abutting against the end faces of the beams tightly.
4. The cross beam of the canopy as claimed in claim 3, wherein the locking fastener is capable of abutting against the end faces of the protrusions tightly.
5. The cross beam of the canopy as claimed in claim 1, wherein the beams have a square tube shape, two opposite inner side surfaces of the beams are respectively provided with the protrusions, and the protrusions on the two opposite inner side surfaces are disposed symmetrically in pairs.
6. The cross beam of the canopy as claimed in claim 5, wherein a quantity of the protrusions is four, the four protrusions are distributed in pairs on the two opposite inner side surfaces of the beams, and the protrusions on each of the two opposite inner side surfaces are disposed symmetrically.
7. The cross beam of the canopy as claimed in claim 2, wherein a watertight sealing member is provided between the end faces of the two adjacent beams, and the locking fastener is capable of pushing the two adjacent beams to move closer to each other to clamp the watertight sealing member tightly to form a seal between the two adjacent beams.
8. The cross beam of the canopy as claimed in claim 7, wherein the watertight sealing member is waterproof glue.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0033] FIG. 1 is a perspective view of a structure of a first embodiment of the present invention;
[0034] FIG. 2 is an enlarged perspective view of the structure at a location “A” in FIG. 1;
[0035] FIG. 3 is an exploded perspective view of the first embodiment;
[0036] FIG. 4 is a perspective view of a structure of the beam in the first embodiment;
[0037] FIG. 5 is a side view of the beam in the first embodiment;
[0038] FIG. 6 is a perspective view of a structure of a long rod in the first embodiment;
[0039] FIG. 7 is a perspective view of a structure of a canopy installed with the cross beam in accordance with the first embodiment;
[0040] FIG. 8 is a side view of a beam in a second embodiment of the present invention.
DETAILED DESCRIPTION
[0041] Set forth below are specific embodiments of the present invention and a further description of the technical solutions of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.
First Embodiment
[0042] As shown in FIGS. 1 and 3, one embodiment of a cross beam of a canopy according to the present invention comprises: two beams 1 both having an elongated square tube shape, and four long rods 2. The two beams 1 are arranged along a straight line, and two end faces of the two beams 1 are set opposite to each other. Two vertically opposite inner side surfaces of each of the beams 1 are respectively provided with two protruding protrusions 1b which are arranged in a vertical direction, with the positions of the two protrusions 1b on the opposite inner side surfaces being set opposite to each other. Each of the protrusions 1b is elongated, and end faces of the two ends of each of the protrusions 1b are flush with end faces of the two ends of the beam 1. Each of the protrusions 1b is provided with a mounting hole 1a along the length direction penetrating through the two end faces of the two ends of the protrusion 1b, with each of the mounting holes 1a being set eccentrically relative to the beam 1. The two beams 1 are aligned and butted along the length direction, such that the mounting holes 1a on the respective beams 1 are butted in sequence and fluidly communicate to form a straight elongated locking passage. Each of the long rods 2 is inserted through the locking passage to connect the two beams 1 in series, and each of the long rods 2 is set close to the side walls of the beams 1. The two ends of each of the long rods 2 protrude respectively out of the two ends of the locking passage, i.e., the two ends of the long rod 2 protrude respectively out of the end faces of the outer ends of the two beams 1, and at the same time the both ends of the long rod 2 are detachably connected with a locking fastener 3 that can make the end faces of the two beams 1 to abut against each other and to be positioned. After the two beams are connected in series by the long rods 2 to form a cross beam, the outer ends of the two beams 1 become two ends of the cross beam, and the two ends of the cross beam are fixedly connected to a column 5 respectively. The long rods 2 provided in the mounting holes 1a of the beams 1, in addition to connecting the individual beams 1, also share the gravity of the beams 1, thus improving structural strength of the beams 1. When the beams 1 per se without the long rod 2 would be deformed due to excessive load-bearing after installation of a covering, installing the long rods 2 on the beams 1 is capable of improving structural strength of the beams 1, making the individual beams 1 maintain the flat attitude, thus the long rods 2 are capable of avoiding deformation of the beams 1 per se.
[0043] As shown in FIG. 7, the two ends of the cross beam are connected to the column 5 respectively, i.e., one end of the beams 1 at the two end positions is supported by the column 5 while the other end abuts against the adjacent beam 1. Based on a state of the present cross beam of the canopy after the cross beam is assembled with the column 5, the side of the cross beam connected to the column 5 is referred to as a lower side, and the side of the cross beam away from the column 5 is referred to as an upper side. As shown in FIGS. 1 and 3, two opposite protrusions 1b on the inner side surfaces of the beam 1 are provided close to the lower side of the beam 1, and the long rods 2 after being inserted into the mounting holes 1a on those protrusions 1b are connected to locking fasteners 3, and those two long rods 2 inserted through the mounting holes 1a are located close to the column 5 in the vertical direction; when the inner ends of the two beams 1 tilts downward due to load-bearing, upper sides of the two abutting end faces of the two adjacent beams 1 will abut against each other tightly, while lower sides of the two abutting end faces of the two adjacent beams 1 will have a tendency to expand outward; at this point, the long rods 2 inserted through the protrusions 1b and the locking fasteners 3 at both ends of the long rods 2 can clamp the lower sides of the two beams 1 sufficiently tightly, inhibiting the outward expanding tendency of the lower sides of the abutting end faces of the two adjacent beams 1, limiting the degree of tilting of the beams 1, reducing the force that drives the long rods 2 to bend due to the tilting of the beams 1, and thus ensuring a straight and stable connection between the individual beams 1. Moreover, when the lower sides of the abutting end faces of the two adjacent beams 1 have the above-mentioned outward expanding tendency, the outer ends of the two adjacent beams 1 exert an outward pushing force on the locking fasteners 3, thereby the locking fasteners 3 can take advantage of this force to straighten the long rods 2, so as to alleviate the bending force on the long rods 2 due to load bearing of the long rods 2, thus ensuring that the two adjacent beams 1 are connected in a straight state.
[0044] As shown in FIG. 3, one embodiment of the mounting holes 1a are round holes, and the long rods 2 are round rods; assembly clearance between hole walls of the mounting holes 1a and outer circumferential surfaces of the long rods 2 makes the hole walls of the mounting holes 1a have a limiting effect on the long rods 2. In conventional assembly, the assembly clearance facilitates installation of the long rods 2, while in practice the assembly clearance may not be set too large, i.e., outer diameters of the long rods 2 may be slightly smaller than hole diameters of the mounting holes 1a, and in this way, when the long rod 2 tends to bend under load, the hole walls of the mounting holes 1a can limit the bending extent of the long rod 2, or even if the long rod 2 bends, the outer circumferential surface of the long rod 2 will directly abut against the hole walls of the mounting holes 1a to makes the long rod 2 cannot continue to bend, that is capable of keeping the long rod 2 straight, and thus limiting the degree of tilt of the beams 1. Keeping the long rod 2 straight at all times can counteract bending tendency of the individual beams 1 due to weight and load, making the individual beams 1 arranged in a straight state and connected stably, thus improving stability of the entire cross beam in use.
[0045] As shown in FIGS. 4 and 5, one embodiment of the two protrusions 1b provided on the same inner side surface of the beam 1 are arranged in a straight line along the vertical direction, and are disposed symmetrically with respect to a horizontal centerline of that inner side surface. After the cross beam is installed on the columns 5, the protrusions 1b provided on the two vertically opposite inner side surfaces within the cross beam are positioned symmetrically with respect to each other, and are capable of sharing the gravitational force within the cross beam and serving to support the individual beams 1.
[0046] As shown in FIG. 2, one embodiment of the locking fastener 3 is a locking nut, and the locking fastener 3 is sleeved on the long rod 2 and thread-connected with the end of the long rod 2. When the long rod 2 is inserted through the mounting holes 1a on the two beams 1, the locking fastener 3 can move on the long rod 2 and push the two beams 1 to move toward each other so that the end faces of the two beams 1 abut against each other tightly; after the end faces of the two beams 1 abut against each other tightly, the locking nut abut against the end face of the protrusion 1b, thereby the locking fasteners 3 at the two ends of the long rod 2 can straighten the long rod 2, thus ensuring stability of the long rod 2.
[0047] As shown in FIGS. 1 and 7, one embodiment of a watertight sealing member 4 is provided between the end faces of the two adjacent beams 1; when the two adjacent beams 1 move closer to each other under action of the locking fasteners 3, the two adjacent beams 1 can clamp the watertight sealing member 4 tightly to form a seal between the two adjacent beams 1. In this embodiment, the watertight sealing member 4 is waterproof glue, which is compression-resistant, drop-proof, frozen-resistant and has strong sealing capability; the waterproof glue solidifies under squeezing of the beams 1, ensuring reliability of the waterproof glue.
[0048] In one embodiment, the long rod 2 is a thin rod, which is relatively lightweight and easy to transport, but the thin rod has the challenge of poor load-bearing performance; the structure provided by the present application makes it possible to maintain a stable fitting between the individual beams even using a thin rod for connection, ensuring stability between the individual beams while improving convenience of transportation, therefore, the present application is of good practicality.
[0049] In one embodiment, the protruding degree of the protrusions 1b should be adapted to outer diameter of the long rod 2, i.e., slightly larger than the outer diameter of the long rod 2, otherwise, too large protruding degree will impair structural strength of the protrusions 1b. As shown in FIG. 7, the canopy in this embodiment is a louver canopy, and the canopy comprises vertically disposed columns 5 and a top frame fixed to top ends of the columns 5 and in a quadrilateral shape. The top frame may be constituted entirely by the cross beams provided in this embodiment or by the cross beams provided in this embodiment and one-piece short beams 7, depending on actual requirements for dimensions. In this embodiment, the top frame of the canopy is in a rectangular shape and is formed by combination and assembly of two oppositely disposed cross beams and two oppositely disposed short beams 7, among which a number of louvers 6 are rotatably connected to the two oppositely disposed cross beams.
[0050] Both vertical and horizontal directions in this embodiment are based on the state of the cross beam after it is installed on the column 5 and assembled into the canopy.
Second Embodiment
[0051] As shown in FIG. 8, this embodiment has substantially the same structure and principle as the first embodiment, with the following differences: each protrusion 1b on each of the beams 1 is provided with an elongated mounting groove 8 which penetrates through the protrusion 1b in the length direction and has a groove opening 8a. The long rod 2 is inserted through the mounting groove 8 along the length direction of the mounting groove 8, with each end of the long rod 2 protruding out of the mounting groove 8. Such adopted form of the mounting groove 8 reduces the area of the long rod 2 contacting with the inner side wall of the mounting groove 8 when passing through the mounting groove 8, thereby facilitating the long rod 2 smoothly passing through the mounting groove 8; in the meantime, the groove opening 8a of the mounting groove 8 has a convergent shape such that each of the protrusions 1b has a C-shaped vertical cross-section, hence the groove opening 8a of the mounting groove 8 reduces area of the end face of the protrusion 1b, allowing improving flatness of both the end face of the protrusion 1b and the end face of the beam 1 during machining, and further allowing improving fitting of the abutting end faces of the two adjacent beams 1 as being clamped tightly under action of the locking fasteners 3, thus improving stability of fitting between the individual beams 1; the groove openings 8a of the mounting grooves 8 on the two opposite protrusions 1b that are disposed symmetrically and provided on the two inner vertically opposite side surfaces of each of the beams 1 respectively, are set opposite to each other, so that internal air of the mounting grooves 8 and internal air of the beams 1 circulate with each other; if the cross beam is used in rainy environment for a long time, humid air or water droplets will easily enter the mounting groove 8 from both ends of the mounting groove 8, the designed form of the groove opening 8a of the mounting groove 8 can accelerate evaporation of moisture and air circulation in the mounting groove 8 to avoid the long rod 2 from rusting due to long-term contact with the humid air or water droplets, thus ensuring solidity and stability of the cross beam of the present application.
[0052] Descriptions related to orientation in this embodiment is based on a state of the cross beam after it is installed on the column.
[0053] Although terms such as beam, locking fastener, etc. are used herein, the possibility of using other technical terms is not excluded. These technical terms are merely used to describe and explain the nature of the invention more conveniently; construing them as any additional limitation is contrary to the scope of the invention.
LIST OF REFERENCED PARTS
[0054] 1 Beam [0055] 1a Mounting Hole [0056] 1b Protrusion [0057] 2 Long Rod [0058] 3 Locking Fastener [0059] 4 Watertight Sealing Member [0060] 5 Column [0061] 6 Louver [0062] 7 Short Beam [0063] 8 Mounting Groove [0064] 8a Groove Opening
