Air outlet structure of axial flow fan

Abstract

The invention relates to the technical field of axial fans, in particular to an air outlet structure of an axial fan, which is characterized in that an air outlet grid is arranged on a grid outer frame, the grid outer frame is mounted on an axial fan main body, a shock pad and a mounting mechanism are arranged on the grid outer frame, and a connecting rod is arranged in a connecting hole formed in the mounting mechanism; a supporting block is arranged on the side face of the grille outer frame, and one side of the supporting block is sleeved with a square rubber sleeve. A cushioning pad and a connecting plate are arranged on the fixing plate; the axial flow fan has the beneficial effects that the pushing block extrudes the inclined surface of the clamping block to enable the clamping block to slide out of the clamping groove, locking between the grille outer frame and the axial flow fan body is relieved, the structure is simple, operation is easy, and the device is convenient to disassemble; and through arrangement of a square rubber sleeve, a shock pad, a round rubber sleeve, a cushioning pad and a rubber pad, connection between the grille outer frame and the axial flow fan body is tighter, collision between the grille outer frame and the axial flow fan body can be effectively avoided, and therefore noise is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of axial flow fans, and in particular to an air outlet structure of an axial flow fan. Background Art

[0002] When an axial flow fan is working, the blades push the air to flow in the same direction as the axis, so it is called an axial flow fan. Axial flow fans are divided into large axial flow fans, medium axial flow fans, and small axial flow fans. Choose the appropriate axial flow fan according to the required place of use. Generally speaking, large axial flow fans are mainly suitable for exhaust in places such as dust and gravel fields; medium axial flow fans are mainly suitable for indoor ventilation and heat dissipation, such as granaries; small axial flow fans are mainly suitable for ventilation and heat dissipation of mechanical equipment, such as electrical cabinets.

[0003] In the prior art, after the axial flow fan has been used for a long time, the air outlet grille on the axial flow fan needs to be disassembled to clean the fan blades and the air outlet grille.

[0004] However, the air outlet grille on the traditional axial flow fan is fixed to the axial flow fan by bolts. When the air outlet grille is disassembled, tools are needed to remove the air outlet grille, which is complicated to operate and inconvenient for personnel to use. In addition, the air outlet grille is tightly connected to the axial flow fan. The vibration generated when the axial flow fan is started may cause excessive collision between the air outlet grille and the axial flow fan, which will generate greater noise. Therefore, the present invention proposes an air outlet structure of an axial flow fan to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an air outlet structure of an axial flow fan to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: an air outlet structure of an axial flow fan, comprising an air outlet grille, the air outlet grille is arranged on a grille outer frame, the grille outer frame is installed on the axial flow fan body, a shock absorbing pad and a mounting mechanism are arranged on the grille outer frame, a connecting rod is arranged in a connecting hole opened on the mounting mechanism, and one end of the connecting rod is arranged on the side of a push block in an upper slide groove; The grille outer frame has a support block on the side thereof, a square rubber sleeve is sleeved on one side of the support block, and the square rubber sleeve is arranged in a square groove provided on the mounting mechanism; A fixing plate is provided with a shock absorbing pad and a connecting plate, and one end of a card block arranged on one side of the connecting plate is arranged in a card slot.

[0007] Preferably, the clamping block is in a trapezoidal plate-like structure, and a rubber pad is fixedly connected to the side surface of the clamping block. The rubber pad is in a trapezoidal plate-like structure. The rubber pad and the clamping block can be inserted into a clamping groove opened on the side surface of the installation mechanism along a first sliding groove opened on the fixing plate and a second sliding groove opened on the shock pad. The clamping groove is in a square groove-like structure.

[0008] Preferably, the clamping block is fixedly connected to the connecting plate. The connecting plate is in a "T"-shaped plate-like structure. A limiting block is fixedly connected to the side surface of the connecting plate. The limiting block is in a "convex"-shaped plate-like structure. The limiting block is stuck in a limiting groove opened on the side surface of the fixing plate. The limiting groove is in a "convex"-shaped groove-like structure. The limiting block arranged in the limiting groove can slide along the limiting groove.

[0009] Preferably, the fixing plate is in a "U"-shaped plate-like structure. A shock pad is fixedly connected to the inner side of the fixing plate. The shock pad is in a "U"-shaped plate-like structure. A second sliding groove is opened on the side surface of the shock pad. The second sliding groove is in a square groove-like structure.

[0010] Preferably, a tension spring is fixedly connected to the side surface of the connecting plate. The other end of the tension spring is fixedly connected to the side surface of the axial flow fan body. A positioning hole is opened on the axial flow fan body. A support rod with a circular rubber sleeve fixedly connected to the side surface is clamped in the positioning hole. The support rod is in a cylindrical structure. The support rod is fixedly connected to the grille outer frame.

[0011] Preferably, a support block is fixedly connected to the side surface of the grille outer frame. The support block is in a "T"-shaped plate-like structure. A square rubber sleeve is fixedly connected to one end of the support block. The square rubber sleeve and the support block can be inserted into a square groove opened on a fixing block fixedly connected to the side surface of the axial flow fan body. The square groove is in a square groove-like structure.

[0012] Preferably, the upper sliding groove is in a square groove-like structure. The pushing block arranged in the upper sliding groove can slide along the upper sliding groove. The pushing block is in a square plate-like structure. One side of the pushing block is fixedly connected to an elastic spring, and the other end is fixedly connected to the installation mechanism. The installation mechanism is in an "L"-shaped plate-like structure.

[0013] Preferably, the connecting hole is in a circular groove-like structure. The connecting rod arranged in the connecting hole can slide along the connecting hole. The connecting rod is in a cylindrical structure. An elastic limiter is clamped on the connecting rod. One end of the connecting rod is fixedly connected to the pushing block, and the other end is fixedly connected to the pressing block. The pressing block is in a circular plate-like structure.

[0014] Preferably, the shock pad is in an annular plate-like structure. The shock pad is fixedly connected to the grille outer frame. The grille outer frame is in an annular plate-like structure. An air outlet grille is fixedly connected to the grille outer frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The present invention proposes an air outlet structure of an axial flow fan. By pressing a pressing block, a connecting rod slides along a connecting hole and pushes the pushing block to be inserted into a slot to squeeze the inclined surface of the block, so that the block slides out of the slot, thereby releasing the lock between the grille outer frame and the axial flow fan body, and the grille outer frame can be removed. The structure is simple and the operation is simple, and it is convenient for personnel to disassemble the device. By arranging a square rubber sleeve, a shock-absorbing pad, a round rubber sleeve, a shock-absorbing pad and a rubber pad on the device, the connection between the grille outer frame and the axial flow fan body can be made tighter, and a collision between the grille outer frame and the axial flow fan body can be effectively avoided, thereby reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the device of the present invention; Figure 2 for Figure 1 The enlarged structural diagram at A in the middle; Figure 3 This is a schematic diagram of the normal installation and use of the structural device of the present invention; Figure 4 for Figure 3 The enlarged structural diagram at B in the middle; Figure 5 for Figure 3 The enlarged structural diagram at C in the middle; Figure 6 It is a schematic diagram of the local structure of the device of the present invention; Figure 7 for Figure 6 The enlarged structural diagram at D in the middle; Figure 8 for Figure 6 The enlarged structural diagram at E in the middle; Fig. 9 It is a partial structural schematic diagram of the device of the present invention; Fig.10 for Fig. 9 Enlarged structural diagram at F in the middle.

[0017] In the figure: 1. Axial fan body; 2. Grille outer frame; 3. Air outlet grille; 4. Support block; 5. Square rubber sleeve; 6. Fixed block; 7. Square groove; 8. Shock-absorbing pad; 9. Support rod; 10. Round rubber sleeve; 11. Mounting mechanism; 12. Connecting hole; 13. Connecting rod; 14. Elastic limiter; 15. Pressing block; 16. Elastic spring; 17. Upper slide; 18. Push block; 19. Connecting plate; 20. Block; 21. Fixed plate; 22. First slide; 23. Shock-absorbing pad; 24. Second slide; 25. Rubber pad; 26. Slot; 27. Limiting slot; 28. Limiting block; 29. ​​Tension spring; 30. Positioning hole. DETAILED DESCRIPTION

[0018] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1

[0019] See also Figures 1 to 10 The present invention provides a technical solution: an air outlet structure of an axial flow fan, comprising an air outlet grille 3, the air outlet grille 3 is arranged on a grille outer frame 2, the grille outer frame 2 is installed on an axial flow fan body 1, a shock absorbing pad 8 and a mounting mechanism 11 are arranged on the grille outer frame 2, a connecting rod 13 is arranged in a connecting hole 12 opened on the mounting mechanism 11, one end of the connecting rod 13 is arranged on the side of a push block 18 in an upper slide groove 17; a grille outer frame 2, a support block 4 is arranged on the side of the grille outer frame 2, a square rubber sleeve 5 is sleeved on one side of the support block 4, and the square rubber sleeve 5 is arranged in a square groove 7 opened on the mounting mechanism 11; a fixing plate 21, a shock absorbing pad 23 and a connecting plate 19 are arranged on the fixing plate 21, and one end of a clamping block 20 arranged on one side of the connecting plate 19 is arranged in a clamping groove 26; When in use, the push block 18 is inserted into the slot 26 to squeeze the inclined surface of the block 20, so that the block 20 slides out of the slot 26, thereby releasing the lock between the grille outer frame 2 and the axial flow fan body 1, and the grille outer frame 2 can be removed. The structure is simple, the operation is simple, and it is convenient for personnel to disassemble the device. Embodiment 2

[0020] On the basis of the first embodiment, in order to facilitate practical use, a connecting plate 19 is provided, a tension spring 29 is fixedly connected to the side of the connecting plate 19, and the other end of the tension spring 29 is fixedly connected to the side of the axial flow fan body 1. A positioning hole 30 is opened on the axial flow fan body 1, and a support rod 9 with a circular rubber sleeve 10 fixedly connected to the side is clamped in the positioning hole 30. The support rod 9 has a cylindrical structure, and the support rod 9 is fixedly connected to the grille outer frame 2. The positioning hole 30 has a circular hole structure, and the circular rubber sleeve 10 has a tubular structure. The circular rubber sleeve 10 is fixedly connected to the support rod 9, and the connecting plate 19 has a "T"-shaped plate structure. By aligning the support rod 9 and the circular rubber sleeve 10 and clamping them into the positioning hole 30, the calibration work is completed, which is convenient for personnel to install; A support block 4 is fixedly connected to the side of the grille outer frame 2. The support block 4 is in the shape of a "T"-shaped plate structure. One end of the support block 4 is fixedly connected to a square rubber sleeve 5. The square rubber sleeve 5 and the support block 4 can be inserted into a square groove 7 opened on a fixing block 6 fixedly connected to the side of the axial flow fan main body 1. The square groove 7 is in the shape of a square groove structure. The square rubber sleeve 5 is fixedly connected to the side of the support block 4. The air outlet grille 3 is fixedly connected to the grille outer frame 2. Continuing to push the grille outer frame 2, one end of the square rubber sleeve 5 and the support block 4 is inserted into the square groove 7 opened on the fixing block 6 to support the whole grille outer frame 2, and together with the circular rubber sleeve 10 and the support rod 9 stuck in the positioning hole 30, they jointly support the grille outer frame 2; The fixing plate 21 is in the shape of a "U"-shaped plate structure. A shock-absorbing pad 23 is fixedly connected to the inner side of the fixing plate 21. The shock-absorbing pad 23 is in the shape of a "U"-shaped plate structure. A second sliding groove 24 is opened on the side of the shock-absorbing pad 23. The second sliding groove 24 is in the shape of a square groove structure. One end of the installation mechanism 11 slides into the shock-absorbing pad 23, and the installation mechanism 11 contacts the inner side surface of the shock-absorbing pad 23. During this process, the installation mechanism 11 presses the inclined surface of the clamping block 20, causing the clamping block 20 to slide along the first sliding groove 22 and the second sliding groove 24. When the clamping groove 26 opened on the installation mechanism 11 is flush with the first sliding groove 22 and the second sliding groove 24, the clamping block 20 is fixedly connected to the connecting plate 19. The connecting plate 19 is in the shape of a "T"-shaped plate structure. A limiting block 28 is fixedly connected to the side of the connecting plate 19. The limiting block 28 is in the shape of a "convex"-shaped plate structure. The limiting block 28 is stuck in a limiting groove 27 opened on the side of the fixing plate 21. The limiting groove 27 is in the shape of a "convex"-shaped groove structure. The limiting block 28 arranged in the limiting groove 27 can slide along the limiting groove 27. The tension spring 29 pulls the connecting plate 19, causing the limiting block 28 fixedly connected to the connecting plate 19 to slide along the limiting groove 27 opened on the side of the fixing plate 21, so that the clamping block 20 is inserted into the clamping groove 26 opened on the side of the installation mechanism 11, completing the locking of the installation mechanism 11 and the grille outer frame 2, and cooperating with the above-mentioned structure, the grille outer frame 2 is fixed on the axial flow fan main body 1; The shock-absorbing pad 8 is in the shape of an annular plate structure. The shock-absorbing pad 8 is fixedly connected to the grille outer frame 2. The grille outer frame 2 is in the shape of an annular plate structure. An air outlet grille 3 is fixedly connected to the grille outer frame 2. And the square rubber sleeve 5, the shock-absorbing pad 8, the circular rubber sleeve 10, the shock-absorbing pad 23 and the rubber pad 25 fixedly connected to the grille outer frame 2 and its additional structures are in contact with the axial flow fan main body 1. Through the above cooperation, collisions between the grille outer frame 2 and the axial flow fan main body 1 can be avoided, thereby generating noise, and the use effect of the device is improved. Embodiment Three

[0021] On the basis of the second embodiment, in order to facilitate the staff to disassemble the device, a connecting hole 12 is provided, and the connecting hole 12 is a circular groove structure. The connecting rod 13 provided in the connecting hole 12 can slide along the connecting hole 12. The connecting rod 13 is a cylindrical structure. An elastic limiter 14 is clamped on the connecting rod 13. One end of the connecting rod 13 is fixedly connected to the push block 18 and the other end is fixedly connected to the pressing block 15. The pressing block 15 is a circular plate-shaped structure. The elastic limiter 14 is clamped on the connecting rod 13 to limit the connecting rod 13 and the pressing block 15. After removing the elastic limiter 14, the staff can press the pressing block 15 to make the pushing block 18 slide along the upper slide groove 17 opened on the side of the mounting mechanism 11; The upper slide groove 17 is a square groove-shaped structure, and the push block 18 arranged in the upper slide groove 17 can slide along the upper slide groove 17. The push block 18 is a square plate-shaped structure. One side of the push block 18 is fixedly connected to the elastic spring 16, and the other end is fixedly connected to the mounting mechanism 11. The mounting mechanism 11 is an "L"-shaped plate-shaped structure. The upper slide groove 17 is communicated with the card slot 26. The card slot 26 is a square groove-shaped structure. The push block 18 slides along the upper slide groove 17 opened on the side of the mounting mechanism 11, so that the elastic spring 16 fixedly connected to the push block 18 is extended, so that the card block 20 is inserted into the card slot 26 to push the inclined surface of the card block 20; The card block 20 is a trapezoidal plate-shaped structure, and a rubber pad 25 is fixedly connected to the side of the card block 20. The rubber pad 25 is a trapezoidal plate-shaped structure. The rubber pad 25 and the card block 20 can be inserted into the card slot 26 opened on the side of the installation mechanism 11 along the first slide groove 22 opened on the fixed plate 21 and the second slide groove 24 opened on the shock-absorbing pad 23. The card slot 26 is a square slot-shaped structure. The first slide groove 22 and the second slide groove 24 are both square slot-shaped structures. The card block 20 is inserted into the card slot 26 to push the inclined surface of the card block 20, which can push the card block 20 to slide along the first slide groove 22 opened on the fixed plate 21 and the second slide groove 24 opened on the shock-absorbing pad 23, and slide out of the card slot 26, thereby releasing the lock of the installation mechanism 11, and the staff can pull the grille outer frame 2 and remove the grille outer frame 2 installed on the axial flow fan body 1. The structure is simple and the operation time is convenient for the staff to disassemble the device, which is convenient for the staff to actually use.

[0022] Working principle: In actual use, by pressing the pressing block 15, the connecting rod 13 slides along the connecting hole 12 and pushes the pushing block 18 to get into the card slot 26 to squeeze the inclined surface of the card block 20, so that the card block 20 slides out of the card slot 26, and the lock between the grille outer frame 2 and the axial flow fan body 1 is released, and the grille outer frame 2 can be removed. The structure is simple and the operation is simple, which is convenient for personnel to disassemble the device. By arranging the square rubber sleeve 5, the shock-absorbing pad 8, the round rubber sleeve 10, the shock-absorbing pad 23 and the rubber pad 25 on the device, the connection between the grille outer frame 2 and the axial flow fan body 1 can be made tighter, and the collision between the grille outer frame 2 and the axial flow fan body 1 can be avoided, thereby reducing noise and improving the use effect of the device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air outlet structure of an axial flow fan, comprising an air outlet grille (3), wherein the air outlet grille (3) is arranged on a grille outer frame (2), and the grille outer frame (2) is mounted on an axial flow fan body (1), characterized in that: A shock-absorbing pad (8) and a mounting mechanism (11) are provided on the outer grille frame (2). A connecting rod (13) is arranged in a connecting hole (12) opened on the mounting mechanism (11), and one end of the connecting rod (13) is arranged on the side of a push block (18) in an upper sliding groove (17). The outer grille frame (2), a support block (4) is arranged on the side of the outer grille frame (2), a square rubber sleeve (5) is sleeved on one side of the support block (4), and the square rubber sleeve (5) is arranged in a square groove (7) opened on the mounting mechanism (11). A fixing plate (21), a shock-absorbing pad (23) and a connecting plate (19) are arranged on the fixing plate (21), and one end of a clamping block (20) arranged on one side of the connecting plate (19) is arranged in a clamping groove (26).

2. The air outlet structure of an axial flow fan according to claim 1, characterized in that: The clamping block (20) has a trapezoidal plate-like structure. A rubber pad (25) is fixedly connected to the side of the clamping block (20). The rubber pad (25) has a trapezoidal plate-like structure. The rubber pad (25) and the clamping block (20) can be clamped into a clamping groove (26) opened on the side of the mounting mechanism (11) along a first sliding groove (22) opened on the fixing plate (21) and a second sliding groove (24) opened on the shock-absorbing pad (23). The clamping groove (26) has a square groove-like structure.

3. The air outlet structure of an axial flow fan according to claim 1, characterized in that: The clamping block (20) is fixedly connected to the connecting plate (19). The connecting plate (19) has a "T"-shaped plate-like structure. A limiting block (28) is fixedly connected to the side of the connecting plate (19). The limiting block (28) has a "convex"-shaped plate-like structure. The limiting block (28) is clamped in a limiting groove (27) opened on the side of the fixing plate (21). The limiting groove (27) has a "convex"-shaped groove-like structure. The limiting block (28) arranged in the limiting groove (27) can slide along the limiting groove (27).

4. The air outlet structure of an axial flow fan according to claim 1, characterized in that: The fixing plate (21) has a "U"-shaped plate-like structure. A shock-absorbing pad (23) is fixedly connected to the inner side of the fixing plate (21). The shock-absorbing pad (23) has a "U"-shaped plate-like structure. A second sliding groove (24) is opened on the side of the shock-absorbing pad (23). The second sliding groove (24) has a square groove-like structure.

5. The air outlet structure of an axial flow fan according to claim 1, characterized in that: A tension spring (29) is fixedly connected to the side of the connecting plate (19). The other end of the tension spring (29) is fixedly connected to the side of the axial flow fan main body (1). A positioning hole (30) is opened on the axial flow fan main body (1). A support rod (9) with a circular rubber sleeve (10) fixedly connected to the side is clamped in the positioning hole (30). The support rod (9) has a cylindrical structure. The support rod (9) is fixedly connected to the outer grille frame (2).

6. The air outlet structure of an axial flow fan according to claim 1, characterized in that: The outer grille frame (2) is fixedly connected to a support block (4) on the side. The support block (4) has a "T"-shaped plate-like structure. One end of the support block (4) is fixedly connected to a square rubber sleeve (5). The square rubber sleeve (5) and the support block (4) can be clamped into a square groove (7) opened on a fixing block (6) fixedly connected to the side of the axial flow fan main body (1). The square groove (7) has a square groove-like structure.

7. The air outlet structure of an axial flow fan according to claim 1, characterized in that: The upper slide groove (17) is in the form of a square groove. A push block (18) arranged in the upper slide groove (17) can slide along the upper slide groove (17). The push block (18) is in the form of a square plate. One end of the push block (18) is fixedly connected to the elastic spring (16), and the other end is fixedly connected to the mounting mechanism (11). The mounting mechanism (11) is in the form of an "L"-shaped plate.

8. The air outlet structure of an axial flow fan according to claim 1, characterized in that: The connecting hole (12) is in the form of a circular groove. A connecting rod (13) arranged in the connecting hole (12) can slide along the connecting hole (12). The connecting rod (13) is in the form of a cylindrical structure. An elastic limiter (14) is clamped on the connecting rod (13). One end of the connecting rod (13) is fixedly connected to the push block (18) and the other end is fixedly connected to the pressing block (15). The pressing block (15) is in the form of a circular plate.

9. The air outlet structure of an axial flow fan according to claim 1, characterized in that: The shock-absorbing pad (8) is in the form of a circular plate-shaped structure, the shock-absorbing pad (8) is fixedly connected to the grille outer frame (2), the grille outer frame (2) is in the form of a circular plate-shaped structure, and an air outlet grille (3) is fixedly connected to the grille outer frame (2).

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