Unit type aluminum alloy ventilation grille

Abstract

The utility model relates to the technical field of construction and building materials, in particular to a unit type aluminum alloy ventilation grille which comprises a plurality of splicing units, each splicing unit comprises a first connecting plate, a second connecting plate and a partition rod, the first connecting plates are located above the second connecting plates, and the partition rods are located above the second connecting plates. The multiple separation rods are arranged between the first connecting plate and the second connecting plate, and the two ends of the multiple separation rods are fixedly connected with the first connecting plate and the second connecting plate correspondingly; a sliding groove is formed in the top wall of each first connecting plate, a connecting piece is arranged in each sliding groove, the connecting pieces are in sliding connection with the sliding grooves, when the sliding grooves abut against the sliding grooves of the adjacent first connecting plates, the connecting pieces are used for abutting against the sliding grooves and the sliding grooves of the adjacent first connecting plates, and the connecting pieces are used for connecting the adjacent splicing units; and the effect of reducing the maintenance cost when the partial area of the ventilation grille is damaged is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of building materials, and particularly to a unitized aluminum alloy ventilation grille. Background Art

[0002] Currently, ventilation grilles are widely used in commercial buildings, office buildings, hospitals, schools and other places, especially suitable for occasions that require large-area ventilation and air exchange.

[0003] The existing ventilation grilles are usually of one-piece type. After being manufactured in the factory according to the required installation size, they are transported to the construction site for installation.

[0004] The above-mentioned prior art solutions have the following defects: The ventilation grille is of one-piece type as a whole, and when it is damaged later, it needs to be replaced in a large area, resulting in high maintenance costs. Summary of the Utility Model

[0005] In order to reduce the maintenance cost when a part of the ventilation grille is damaged, the present application provides a unitized aluminum alloy ventilation grille.

[0006] The above technical objectives of the present application are achieved through the following technical solutions:

[0007] A unitized aluminum alloy ventilation grille includes a plurality of splicing units. Each splicing unit includes a first connecting plate, a second connecting plate and a partition rod. The first connecting plate is located above the second connecting plate. The partition rod is arranged between the first connecting plate and the second connecting plate. A plurality of partition rods are provided, and both ends of the plurality of partition rods are respectively fixedly connected to the first connecting plate and the second connecting plate; a chute is provided on the top wall of each first connecting plate, and a connecting member is arranged in each chute. The connecting member is slidably connected to the chute. When the chute abuts against the chute of the adjacent first connecting plate, the connecting member is used to abut against both the chute and the chute of the adjacent first connecting plate; threaded holes are provided on both sides of the connecting member, and a fixing rod is correspondingly arranged on each threaded hole. Each fixing rod is threadedly connected to the threaded hole, and each fixing rod passes through the threaded hole and abuts against the connecting member.

[0008] By adopting the above scheme, the entire ventilation grille is divided into several splicing units. Since connecting pieces are provided, when splicing between the splicing units, first abut one splicing unit against an adjacent splicing unit, and then push the connection piece to slide in the chute until the connection piece abuts against the chutes of two adjacent splicing units. Also, since fixing pieces are provided, at this time, rotate the fixing piece, and the fixing piece moves towards the direction close to the connection piece, thereby pushing the connection piece towards the direction close to the bottom wall of the chute, and then making the connection piece abut against the bottom wall of the chute, thus completing the splicing between adjacent splicing units. The entire ventilation grille is divided into several splicing units. When the ventilation grille is damaged, only the splicing unit where it is located needs to be replaced, achieving the effect of reducing the maintenance cost when a partial area of the ventilation grille is damaged.

[0009] Furthermore, a plurality of first dovetail grooves are formed on the first connecting plate, and a plurality of second dovetail grooves are formed on the side wall of the second connecting plate. When the first connecting plate and the second connecting plate are placed correspondingly, there is a first dovetail groove vertically corresponding to the second dovetail groove; both ends of each partition rod are respectively fixedly connected with a first dovetail bar and a second dovetail bar, the first dovetail bar is in plug-in fit with the first dovetail groove, and the second dovetail bar is in plug-in fit with the second dovetail groove;

[0010] A reinforcing hole is formed on each first dovetail groove, and a reinforcing rod is threadedly connected to each reinforcing hole. The reinforcing rod passes through the reinforcing hole and abuts against the first dovetail bar.

[0011] By adopting the above scheme, the number of partition rods in each splicing unit can be controlled by adjusting the positional relationship between the partition rod and the first dovetail groove and the second dovetail groove, so that the splicing unit can be applied to scenarios with different requirements. Also, since the reinforcing rod is provided, after the positional relationship between the partition rod and the first dovetail groove and the second dovetail groove is determined, rotate the reinforcing rod, and the reinforcing rod moves towards the direction close to the first dovetail bar, thereby pushing the dovetail groove towards the direction close to the second dovetail groove, and then pushing the partition rod towards the direction close to the second dovetail groove. At this time, the second dovetail groove and the reinforcing rod have a mutually opposing force on the partition rod, making the partition rod stably connected between the first dovetail groove and the second dovetail groove.

[0012] Furthermore, each partition rod is composed of an outer rod, an inner rod and a first set screw. Each partition rod includes two outer rods, the inner rod is arranged between the two outer rods, a lifting groove is formed on each outer rod, both ends of the inner rod are inserted into the lifting groove, and both ends of the inner rod are slidably connected with the lifting groove. The mutually remote ends of the two outer rods are respectively fixedly connected with a first dovetail bar and a second dovetail bar. A through hole is formed on each outer rod, and a first set screw is threadedly connected to each through hole. Each first set screw passes through the through hole and abuts against the inner rod.

[0013] By adopting the above scheme, the length of the partition rod can be controlled by controlling the movement of the inner rod in the lifting slot, so that the height of the splicing unit can be adjusted, so that the splicing unit can be suitable for installation scenarios with different requirements. In addition, because the first top screw is provided, when the positional relationship between the inner rod and the lifting slot is determined, the first top screw is rotated, and the first top screw pushes the inner rod toward the lifting slot away from the first top screw until the positional relationship between the inner rod and the lifting slot is locked.

[0014] Furthermore, each inner rod is provided with a linkage hole, each linkage hole corresponds to each other horizontally, and a linkage rod is also provided on the inner rod, and the linkage rod passes through each linkage hole in turn; locking components are provided on the partition rods on both sides of each splicing unit, and each locking component is used to lock the linkage rod and the linkage hole.

[0015] By adopting the above solution, the linkage rod is inserted into each linkage hole in the same splicing unit, and then the two ends of the linkage rod are locked with the linkage holes using the locking assembly. At this time, by pulling the linkage rod, all the inner rods connected to the linkage rod can be controlled to slide along the lifting groove.

[0016] Furthermore, the locking assembly includes a pushing rod, a toggle rod and a fastening rod. A pushing groove is provided on the inner rod, the pushing rod is arranged in the pushing groove, one end of the pushing rod passes through and abuts against the linkage rod, the pushing rod is slidably connected to the pushing groove, the toggle rod and the pushing rod are perpendicular to each other, and a moving groove is also provided on the inner rod, the toggle rod is arranged in the moving groove, one end of the toggle rod is fixedly connected to an end of the pushing rod away from the inner rod, the toggle rod moves in the moving groove, and is used to drive the pushing rod to move in the pushing groove, the fastening rod passes through the side wall of the moving groove and abuts against the toggle rod, and the fastening rod is threadedly connected to the moving groove.

[0017] By adopting the above scheme, since the toggle rod is fixedly connected with the push rod, the toggle rod can be moved in the moving groove by toggling the toggle rod, and since the push rod abuts against the linkage rod, the push rod can push the linkage rod toward the side wall of the linkage hole until the linkage rod is pushed to abut against the inner wall of the linkage hole. Since a fastening rod is provided, the fastening rod is rotated at this time, and the fastening rod moves in the direction close to the toggle rod until the fastening rod abuts against the toggle rod, and the toggle rod is pushed to abut against the inner wall of the moving groove, thereby completing the locking of the toggle rod. The toggle rod is locked, which further proves that the locking of the positional relationship between the push rod and the linkage rod is completed.

[0018] Further, the linkage rod includes a sleeve rod, a telescopic rod, and a second set screw. There are two sleeve rods, and the two sleeve rods are respectively sleeved at both ends of the telescopic rod. Both ends of the telescopic rod are inserted into the sleeve rods, and both ends of the telescopic rod are slidably connected to the sleeve rods. A through hole is provided on each sleeve rod, and a second set screw is correspondingly provided on each sleeve rod. Each second set screw passes through the through hole and abuts against the telescopic rod, and each second set screw is threadedly connected to the through hole.

[0019] By adopting the above scheme, by controlling the positional relationship between the telescopic rod and the sleeve rod, the length of the entire linkage rod can be controlled, so that the linkage rod can act on splicing units of different specifications. Also, because the second set screw is provided, when the positional relationship between the telescopic rod and the sleeve rod is determined, rotating the second set screw will tighten the telescopic rod against the inner wall of the sleeve rod, thereby completing the locking of the positional relationship between the telescopic rod and the sleeve rod.

[0020] Further, a handrail rod is fixedly connected to the end of the toggle rod away from the push rod. An elastic member is provided between the toggle rod and the handrail rod, and both ends of the elastic member are fixedly connected to the toggle rod and the handrail rod respectively.

[0021] By adopting the above scheme, because the handrail rod is provided, the toggle rod can be driven to move in the moving groove by controlling the handrail rod. Also, because an elastic member is provided between the handrail rod and the push rod, when adjacent splicing units abut against each other, the handrail rod receives a force from the adjacent splicing unit towards the bottom wall of the moving groove, thereby driving the elastic member to contract, and then the handrail rod is buried in the moving groove.

[0022] Further, a groove is provided on the threaded hole. When the fixing rod passes through the threaded hole and abuts against the connecting member, the end of the fixing rod away from the fixing hole is clamped in the groove.

[0023] By adopting the above scheme, because the groove is provided, when the fixing rod abuts against the connecting member, the end of the fixing rod is clamped in the groove, so that there is no protrusion on the surface of the first connecting plate, avoiding a gap between the connection of the first connecting plate and the working surface.

[0024] In summary, the present application has the following technical effects:

[0025] 1. By providing splicing units, the entire ventilation grille is divided into several splicing units. Since connecting pieces are provided, when splicing between the splicing units, first abut one splicing unit against an adjacent splicing unit, and then push the connection piece to slide in the chute until the connection piece abuts against the chutes of two adjacent splicing units. Also, since fixing pieces are provided, at this time, rotate the fixing piece, and the fixing piece moves towards the direction close to the connection piece, thereby pushing the connection piece towards the direction close to the bottom wall of the chute, and then making the connection piece abut against the bottom wall of the chute, thus completing the splicing between adjacent splicing units. The entire ventilation grille is divided into several splicing units. When the ventilation grille is damaged, only the splicing unit where the damage occurs needs to be replaced, achieving the effect of reducing the maintenance cost when a partial area of the ventilation grille is damaged;

[0026] 2. By providing a handrail rod and an elastic member, since the handrail rod is provided, by controlling the handrail rod, the toggle rod can be driven to move in the moving groove. Also, since an elastic member is provided between the handrail rod and the push rod, when adjacent splicing units abut against each other, the handrail rod receives a force from the adjacent splicing unit towards the bottom wall of the moving groove, thereby driving the elastic member to contract, and then the handrail rod is buried in the moving groove;

[0027] 3. By providing a linkage rod, insert the linkage rod into each linkage hole within the same splicing unit, and then use a locking assembly to lock the two ends of the linkage rod to the linkage holes. At this time, by pulling the linkage rod, all the inner rods connected to the linkage rod can be controlled to slide along the lifting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of a unitized aluminum alloy ventilation grille of the present application;

[0029] Figure 2 is a schematic structural diagram of the locking assembly of the present application;

[0030] Figure 3 is a schematic structural diagram of the connection part of the partition rod of the present application.

[0031] In the figure: 1, working surface; 2, splicing unit; 21, first connecting plate; 211, chute; 212, first dovetail groove; 22, second connecting plate; 221, second dovetail groove; 23, partition rod; 231, first dovetail bar; 232, second dovetail bar; 233, outer rod; 234, inner rod; 235, first set screw; 3, connecting piece; 4, fixed rod; 5, reinforcing rod; 6, linkage rod; 61, sleeve rod; 62, telescopic rod; 63, second set screw; 7, locking assembly; 71, push rod; 72, toggle rod; 73, fastening rod; 8, moving groove; 9, handrail rod; 10, elastic member; 20, limiting rod; 30, sliding rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The present application will be further described in detail below with reference to the accompanying drawings.

[0033] Referring to Figure 1 , a unitary aluminum alloy ventilation grille provided in this embodiment includes a plurality of splicing units 2. Each splicing unit 2 includes a first connecting plate 21, a second connecting plate 22, and a partition rod 23. The first connecting plate 21 is located above the second connecting plate 22. The partition rod 23 is disposed between the first connecting plate 21 and the second connecting plate 22. A plurality of partition rods 23 are provided, and both ends of the plurality of partition rods 23 are fixedly connected to the first connecting plate 21 and the second connecting plate 22 respectively; the plurality of splicing units 2 are connected to each other to form a whole.

[0034] Referring to Figure 1 , a sliding groove 211 is formed in the top wall of each first connecting plate 21. A connecting member 3 is disposed in the sliding groove 211 of each first connecting plate 21. The connecting member 3 is slidably connected to the sliding groove 211. When splicing two splicing units 2, the sliding groove 211 abuts against the sliding groove of the adjacent splicing unit. At this time, the connecting member 3 is pushed into the adjacent sliding groove 211 until the connecting member 3 abuts against the connecting grooves of the adjacent first connecting plate 21; threaded holes are formed on both sides of the connecting member 3, and a fixing rod 4 is correspondingly disposed on each threaded hole. Each fixing rod 4 is threadedly connected to the threaded hole. Each fixing rod 4 passes through the threaded hole and abuts against the connecting member 3. By rotating the fixing rod 4, each fixing member moves towards the direction close to the connecting member 3, thereby pushing the connecting member 3 towards the direction close to the bottom wall of the sliding groove 211, and further abutting the connecting member 3 against the bottom wall of the sliding groove 211, thereby completing the locking between the adjacent splicing units 2; grooves are formed on each threaded hole. When the fixing rod 4 passes through the threaded hole and abuts against the connecting member 3, the end of the fixing rod 4 away from the fixing hole is clamped in the groove. The end of the fixing rod 4 is clamped in the groove, so that there is no protrusion on the surface of the first connecting plate 21, avoiding gaps when the first connecting plate 21 is connected to the working surface 1.

[0035] Referring to Figure 1 and Figure 3, a plurality of first dovetail grooves 212 are formed in the first connecting plate 21, and a plurality of second dovetail grooves 221 are formed in the side wall of the second connecting plate 22. When the first connecting plate 21 and the second connecting plate 22 are placed correspondingly, one first dovetail groove 212 is vertically corresponding to the second dovetail groove 221; both ends of each partition rod 23 are fixedly connected with a first dovetail bar 231 and a second dovetail bar 232 respectively. The first dovetail bar 231 is inserted and matched with the first dovetail groove 212, and the second dovetail bar 232 is inserted and matched with the second dovetail groove 221. By adjusting the positional relationship between the partition rod 23 and the first dovetail groove 212 and the second dovetail groove 221, the number of partition rods 23 in each splicing unit 2 can be controlled, so that the splicing unit 2 can be applied to scenarios with different requirements; a reinforcing hole is formed in each first dovetail groove 212, and a reinforcing rod 5 is threadedly connected to each reinforcing hole. Each reinforcing rod 5 passes through the reinforcing hole and abuts against the first dovetail bar 231; after the positional relationship between the first dovetail bar 231 and the first dovetail groove 212 is determined, rotate the reinforcing rod 5, and the reinforcing rod 5 moves towards the direction close to the first dovetail bar 231, thereby pushing the dovetail groove towards the direction close to the second dovetail groove 221, and further pushing the partition rod 23 towards the direction close to the second dovetail groove 221. At this time, there is a mutually opposing force on the partition rod 23 between the second dovetail groove 221 and the reinforcing rod 5, so that the partition rod 23 is stably connected between the first dovetail groove 212 and the second dovetail groove 221.

[0036] Referring to Figure 1 , each partition rod 23 is composed of an outer rod 233, an inner rod 234 and a first set screw 235. In this embodiment, each partition rod 23 includes two outer rods 233. The inner rod 234 is arranged between the two outer rods 233. A lifting groove is formed in each outer rod 233. Both ends of the inner rod 234 are inserted into the lifting groove, and both ends of the inner rod 234 are slidably connected with the lifting groove. The mutually remote ends of the two outer rods 233 are fixedly connected with the first dovetail bar 231 and the second dovetail bar 232 respectively. A through hole is formed in each outer rod 233, and a first set screw 235 is threadedly connected to each through hole. Each first set screw 235 passes through the through hole and abuts against the inner rod 234. By controlling the movement of the inner rod 234 in the lifting groove, the positional relationship between the inner rod 234 and the lifting groove can be controlled. After the positional relationship between the inner rod 234 and the lifting groove is determined, rotate the first set screw 235, and the first set screw 235 pushes the inner rod 234 towards the direction away from the first set screw 235 in the lifting groove until the positional relationship between the inner rod 234 and the lifting groove is locked.

[0037] Referring to Figure 1 - Figure 2, linkage holes are formed in each inner rod 234, and each linkage hole is horizontally corresponding. A linkage rod 6 is further arranged on the inner rod 234, and the linkage rod 6 sequentially passes through each linkage hole; the linkage rod 6 includes a sleeve rod 61, a telescopic rod 62 and a second set screw 63. The sleeve rod 61 is sleeved outside the telescopic rod 62. In this embodiment, there are two sleeve rods 61. Both ends of the telescopic rod 62 are inserted into the sleeve rods 61, and both ends of the telescopic rod 62 are slidably connected to the sleeve rods 61. A perforation is formed in each sleeve rod 61, and a second set screw 63 is correspondingly arranged on each sleeve rod 61. Each second set screw 63 passes through the perforation and abuts against the telescopic rod 62. Each second set screw 63 is threadedly connected to the perforation, so that the length of the linkage rod 6 can be controlled by controlling the telescopic rod 62 to slide in the sleeve rod 61. When the relative position relationship between the telescopic rod 62 and the sleeve rod 61 is determined, rotate the second set screw 63, and the second set screw 63 moves towards the direction close to the telescopic rod 62 until the second set screw 63 pushes the sleeve and the telescopic rod 62 tightly together, that is, the relative position relationship between the telescopic rod 62 and the sleeve rod 61 is locked.

[0038] Refer to Figure 1 - Figure 2, locking components 7 are provided on the partition rods 23 on both sides inside each splicing unit 2, and each locking component 7 is used to lock the linkage rod 6 and the linkage hole; each locking component 7 includes a push rod 71, a toggle rod 72 and a fastening rod 73. A push groove is provided on the inner rod 234, and the push rod 71 is arranged in the push groove. One end of the push rod 71 abuts against the linkage rod 6, and the push rod 71 is slidably connected to the push groove. The toggle rod 72 is perpendicular to the push rod 71. A moving groove 8 is also formed on the inner rod 234, and the toggle rod 72 is arranged in the moving groove 8. One end of the toggle rod 72 is fixedly connected to the end of the push rod 71 away from the inner rod 234. The toggle rod 72 moves in the moving groove 8 to drive the push rod 71 to move in the push groove. The fastening rod 73 passes through the side wall of the moving groove 8 and abuts against the toggle rod 72, and the fastening rod 73 is threadedly connected to the moving groove 8; a handrail rod 9 is fixedly connected to the end of the toggle rod 72 away from the push rod 71. An elastic member 10 is arranged between the toggle rod 72 and the handrail rod 9. Two ends of the elastic member 10 are respectively fixedly connected to the toggle rod 72 and the handrail rod 9. A limiting rod 20 is fixedly connected to the handrail rod 9, and a sliding rod 20 is arranged on the toggle rod 72. A groove is formed on the sliding rod 20, and the limiting rod 20 is slidably connected to the groove; by controlling the handrail rod 9, the toggle rod 72 can be driven to move in the moving groove 8. The movement of the toggle rod 72 drives the push rod 71 to move in the push groove. Since the push rod 71 abuts against the linkage rod 6, the push rod 71 can push the linkage rod 6 towards the side wall of the linkage hole until the linkage rod 6 is pushed to abut against the inner wall of the linkage hole. At this time, rotate the fastening rod 73, and the fastening rod 73 moves towards the direction close to the toggle rod 72 until the fastening rod 73 abuts against the toggle rod 72 and pushes the toggle rod 72 to abut against the inner wall of the moving groove 8, then the locking of the toggle rod 72 is completed. The toggle rod 72 is locked, which further proves that the locking of the positional relationship between the push rod 71 and the linkage rod 6 is completed.

[0039] The implementation principle of a unitary aluminum alloy ventilation grille in an embodiment of this application is as follows: First, insert the first dovetail bar 231 into the first dovetail groove 212 in a mating manner, so that one end of each partition rod 23 is fixed to the first connecting plate 21; then, sequentially rotate the first set screws 235 close to the second dovetail bar 232, so that the outer rod 233 fixedly connected to the second dovetail bar 232 and the inner rod 234 are locked between them; then, adjust the relative positional relationship between the telescopic rod 62 and the sleeve, and further control the length of the linkage rod 6, and then rotate the second set screw 63 to lock the relative positional relationship between the telescopic rod 62 and the sleeve; then, pass the linkage rod 6 through each linkage hole in sequence, and then control the linkage rod 6. The linkage rod 6 drives the inner rod 234 to move along the lifting groove, so as to determine the length of each partition rod 23. Then, rotate the first set screw 235 close to the first dovetail groove 212 until the length of each partition rod 23 is determined. Then, insert the second dovetail bar 232 into the second dovetail groove 221 in a mating manner, that is, fix both ends of each partition rod 23 to the first connecting plate 21 and the second connecting plate 22 respectively; then, push the handrail rod 9, the handrail rod 9 drives the toggle rod 72 to move, the toggle rod 72 drives the push rod 71 to move until the push rod 71 pushes the linkage rod 6 to abut against the inner wall of the linkage hole, and then rotate the fastening rod 73 until the fastening rod 73 passes through the side wall of the moving groove 8 and abuts against the toggle rod 72, so as to lock the position of the toggle rod 72. Repeat the above steps to lock both ends of the linkage rod 6 to the linkage hole; after assembling each splicing unit 2 as above, then abut two adjacent splicing units 2, push the connecting piece 3 until the connecting piece 3 abuts against both adjacent sliding grooves 211, and then sequentially rotate the fixing rod 4 to connect the two splicing units 2.

[0040] This specific embodiment is only an interpretation of this application, and it is not a limitation of this application. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of this application, it is protected by the patent law.

Claims

1. A unitized aluminum alloy ventilation grille, characterized in that: The invention comprises a plurality of splicing units (2), each of which comprises a first connecting plate (21), a second connecting plate (22) and a partition rod (23), the first connecting plate (21) being located above the second connecting plate (22), the partition rod (23) being arranged between the first connecting plate (21) and the second connecting plate (22), a plurality of partition rods (23) being arranged, and both ends of the plurality of partition rods (23) being respectively fixedly connected to the first connecting plate (21) and the second connecting plate (22); a top wall of each first connecting plate (21) is provided with a slide groove (211), and each slide groove A connecting piece (3) is arranged inside (211), and the connecting piece (3) is slidably connected to the slide groove (211). When the slide groove (211) abuts against the slide groove (211) of the adjacent first connecting plate (21), the connecting piece (3) is used to abut against the slide groove (211) and the slide groove (211) of the adjacent first connecting plate (21); threaded holes are arranged on both sides of the connecting piece (3), and a fixing rod (4) is correspondingly arranged on each threaded hole, and each fixing rod (4) is threadedly connected to the threaded hole, and each fixing rod (4) passes through the threaded hole and abuts against the connecting piece (3).

2. The unitized aluminum alloy ventilation grille according to claim 1, characterized in that: The first connecting plate (21) is provided with a plurality of first dovetail grooves (212), and the side wall of the second connecting plate (22) is provided with a plurality of second dovetail grooves (221); when the first connecting plate (21) and the second connecting plate (22) are placed correspondingly, there is a first dovetail groove (212) vertically corresponding to the second dovetail groove (221); the two ends of each partition rod (23) are respectively fixedly connected with a first dovetail bar (231) and a second dovetail bar (232); the first dovetail bar (231) is plug-fitted with the first dovetail groove (212), and the second dovetail bar (232) is plug-fitted with the second dovetail groove (221); each first dovetail groove (212) is provided with a reinforcement hole, and each reinforcement hole is threadedly connected with a reinforcement rod (5), and the reinforcement rod (5) passes through the reinforcement hole and abuts against the first dovetail bar (231).

3. The unitized aluminum alloy ventilation grille according to claim 1, characterized in that: Each of the partition rods (23) is composed of an outer rod (233), an inner rod (234) and a first top screw (235). Each of the partition rods (23) includes two outer rods (233). The inner rod (234) is arranged between the two outer rods (233). Each of the outer rods (233) is provided with a lifting slot. Both ends of the inner rod (234) are inserted into the lifting slot. Both ends of the inner rod (234) are slidably connected to the lifting slot. One end of the two outer rods (233) away from each other is fixedly connected to the first dovetail bar (231) and the second dovetail bar (232). Each of the outer rods (233) is provided with a through hole. Each through hole is threadedly connected to a first top screw (235). Each first top screw (235) passes through the through hole and abuts against the inner rod (234).

4. The unitized aluminum alloy ventilation grille according to claim 3, characterized in that: Each inner rod (234) is provided with a linkage hole, each linkage hole corresponds to each other horizontally, and a linkage rod (6) is also provided on the inner rod (234), and the linkage rod (6) passes through each linkage hole in sequence; and locking components (7) are provided on the partition rods (23) on both sides of each splicing unit (2), and each locking component (7) is used to lock the linkage rod (6) with the linkage hole.

5. The unitized aluminum alloy ventilation grille according to claim 4, characterized in that: The locking assembly (7) comprises a pushing rod (71), a toggle rod (72) and a fastening rod (73); a pushing groove is provided on the inner rod (234); the pushing rod (71) is arranged in the pushing groove; one end of the pushing rod (71) abuts against the linkage rod (6); the pushing rod (71) is slidably connected to the pushing groove; the toggle rod (72) and the pushing rod (71) are perpendicular to each other; a moving groove (8) is also provided on the inner rod (234); the toggle rod (72) is arranged in the moving groove (8); one end of the toggle rod (72) is fixedly connected to one end of the pushing rod (71) away from the inner rod (234); the toggle rod (72) moves in the moving groove (8) to drive the pushing rod (71) to move in the pushing groove; the fastening rod (73) passes through the side wall of the moving groove (8) and abuts against the toggle rod (72); the fastening rod (73) is threadedly connected to the moving groove (8).

6. The unitized aluminum alloy ventilation grille according to claim 4, characterized in that: The linkage rod (6) comprises a sleeve rod (61), a telescopic rod (62) and a second top screw (63). Two sleeve rods (61) are provided. The two sleeve rods (61) are respectively sleeved at two ends of the telescopic rod (62). Both ends of the telescopic rod (62) are inserted into the sleeve rod (61). Both ends of the telescopic rod (62) are slidably connected to the sleeve rod (61). Each sleeve rod (61) is provided with a through hole. Each sleeve rod (61) is correspondingly provided with a second top screw (63). Each second top screw (63) passes through the through hole to abut against the telescopic rod (62), and each second top screw (63) is threadedly connected to the through hole.

7. The unitized aluminum alloy ventilation grille according to claim 5, characterized in that: One end of the toggle rod (72) away from the push rod (71) is fixedly connected to a handrail rod (9), an elastic member (10) is provided between the toggle rod (72) and the handrail rod (9), and two ends of the elastic member (10) are respectively fixedly connected to the toggle rod (72) and the handrail rod (9).

8. The unitized aluminum alloy ventilation grille according to claim 1, characterized in that: The threaded hole is provided with a groove, and when the fixing rod (4) passes through the threaded hole and abuts against the connecting piece (3), the end of the fixing rod (4) away from the fixing hole is clamped in the groove.

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