Air volume adjusting mechanism of cross flow fan

Abstract

The utility model discloses an air volume adjusting mechanism of a cross flow fan, which comprises a shell, an adjustable exhaust guide plate is arranged on the front side of the shell, a plurality of exhaust outlets are arranged on the surface of the exhaust guide plate, and a longitudinal adjusting component mounted in the shell is arranged above the exhaust guide plate. A transverse adjusting assembly installed in the shell is arranged on the back face of the exhaust guide plate. The transverse adjusting assembly comprises a guide rail fixed to the inner wall of the shell, sliding blocks are connected to the guide rail in a sliding mode, a wind shield is fixedly installed between the multiple sliding blocks, and a plurality of wind guide holes are formed in the wind shield. According to the cross flow fan, the air guide hole and the air outlet can be staggered by controlling the relative position between the air baffle and the air exhaust flow guide plate through the arranged transverse adjusting assembly, so that the opening size of the air outlet is controlled, the air exhaust rate of the cross flow fan is adjusted, and the cross flow fan can be used under different conditions; and the effect wanted by people is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cross-flow fans, in particular to an air volume regulating mechanism of a cross-flow fan. Background Art

[0002] The biggest feature of the cross-flow fan is that the fluid flows through the fan impeller twice, the fluid flows in radially and then flows out radially, the air intake and exhaust directions are in the same plane, and the exhaust gas is evenly distributed along the width of the fan. Due to its simple structure, small size, high dynamic pressure coefficient and long reach, it is widely used in equipment that requires blowing.

[0003] Although the existing cross-flow fans can meet people's needs when used, the air volume at the air outlet of many cross-flow fans cannot be adjusted, which sometimes leads to too much air volume, and it is difficult to control the air volume, which greatly reduces the effect of people's use of the cross-flow fans and cannot meet people's expected optimal use effect. Therefore, it is urgent to design an air volume adjustment mechanism for cross-flow fans to solve the above problems. Utility Model Content

[0004] The utility model aims to provide an air volume regulating mechanism for a cross-flow fan to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wind volume adjustment mechanism for a cross-flow fan, comprising a housing, an adjustable exhaust guide plate is arranged on the front of the housing, and a plurality of exhaust ports are arranged on the surface of the exhaust guide plate, a longitudinal adjustment component installed inside the housing is arranged above the exhaust guide plate, and a transverse adjustment component installed inside the housing is arranged on the back of the exhaust guide plate;

[0007] The lateral adjustment assembly includes a guide rail fixed on the inner wall of the outer shell, and a slider is slidably connected to the guide rail, a wind shield is fixedly installed between several of the sliders, and several air guide holes are arranged on the wind shield, a rack is welded on the outer wall of one side of the wind shield, and a gear is meshingly connected to the rack above, a rotating handle that passes through the outside of the outer shell is installed on the central axis of the gear, and the rotating handle is arranged on the surface of the exhaust guide plate.

[0008] Preferably, pre-tightening screws are provided on both side outer walls of the shell, and brackets are provided on both sides of the shell through the pre-tightening screws.

[0009] Preferably, a bottom plate is welded to the outer wall of the bottom end of the bracket, and a plurality of bolt holes are arranged on the outer wall of the top of the bottom plate.

[0010] Preferably, the specifications of the air guide holes are matched with the specifications of the air outlets, the exhaust guide plate and the wind shield plate are staggered and distributed in parallel, and the air guide holes and the air outlets are staggered and distributed.

[0011] Preferably, the longitudinal adjustment component includes a bearing seat installed on the outer side wall of the outer shell, and the exhaust deflector is installed on the bearing seat through a rotating shaft, a through hole is provided on the outer wall of the top of the outer shell, and a guide sleeve is fixedly installed inside the through hole, a guide rod is inserted inside the guide sleeve, a rotating hinge seat 2 is fixedly provided at the bottom end of the guide rod, and a connecting rod is rotatably connected to the rotating hinge seat 2, a rotating hinge seat 1 is provided at the bottom end of the connecting rod, and the rotating hinge seat 1 is installed on the outer wall on one side of the top of the exhaust deflector.

[0012] Preferably, a damping connection structure is adopted between the guide rod and the guide sleeve, and a ball head is welded on the outer wall of the top end of the guide rod.

[0013] In the above technical solution, the utility model provides an air volume adjustment mechanism for a cross-flow fan, and the beneficial effects are:

[0014] (1) By setting up a lateral adjustment component, the relative position between the wind shield and the exhaust guide plate can be controlled, so that the air guide hole and the exhaust port are offset to control the opening size of the exhaust port, thereby adjusting the exhaust volume of the cross flow fan, meeting the use of the cross flow fan in different situations and achieving the desired effect.

[0015] (2) The longitudinal adjustment component used can adjust the pitch angle of the exhaust guide plate, thereby changing the air outlet angle of the cross flow fan. Driven by the guide rod, rotating hinge seat and connecting rod, the exhaust guide plate can be flipped as a whole on the bearing seat to achieve the change of the pitch angle.

[0016] (3) The provided bracket, base plate and pre-tightening screws can facilitate the installation of the casing, and the overall pitch angle of the casing can also be adjusted. In combination with the longitudinal adjustment component, the pitch angle of the cross flow fan can be greatly changed, fully satisfying people's normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 The utility model provides a schematic structural diagram of an embodiment of an air volume adjustment mechanism of a cross-flow fan.

[0019] Figure 2 A schematic diagram of the transmission structure of a wind shield provided in an embodiment of an air volume adjustment mechanism of a cross-flow fan of the utility model.

[0020] Figure 3 A left view of the partial structure of an embodiment of an air volume adjustment mechanism of a cross-flow fan of the utility model.

[0021] Figure 4 A partial structural front view of an embodiment of an air volume adjustment mechanism of a cross-flow fan of the utility model is provided.

[0022] 1 housing, 2 pre-tightening screws, 3 brackets, 4 bottom plates, 5 exhaust guide plates, 6 exhaust vents, 7 longitudinal adjustment components, 8 lateral adjustment components, 9 wind shields, 10 air guide holes, 11 guide rails, 12 sliders, 13 racks, 14 gears, 15 rotating handles, 16 bearing seats, 17 rotating hinge seats 1, 18 connecting rods, 19 rotating hinge seats 2, 20 guide sleeves, 21 guide rods, 22 ball heads. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-4 As shown, an air volume adjustment mechanism of a cross-flow fan provided by an embodiment of the utility model comprises a shell 1, an adjustable exhaust guide plate 5 is arranged on the front of the shell 1, and a plurality of exhaust ports 6 are arranged on the surface of the exhaust guide plate 5, a longitudinal adjustment component 7 installed inside the shell 1 is arranged above the exhaust guide plate 5, and a transverse adjustment component 8 installed inside the shell 1 is arranged on the back of the exhaust guide plate 5; the transverse adjustment component 8 comprises a guide rail 11 fixed on the inner wall of the shell 1, and a slider 12 is slidably connected to the guide rail 11, a wind shield 9 is fixedly installed between the plurality of sliders 12, and a plurality of air guide holes 10 are arranged on the wind shield 9, a rack 13 is welded on the outer wall on one side of the wind shield 9, and a gear 14 is meshingly connected to the rack 13 above the rack, a rotating handle 15 penetrating to the outside of the shell 1 is installed on the central axis of the gear 14, and the rotating handle 15 is arranged on the surface of the exhaust guide plate 5.

[0025] Specifically, in this embodiment, a housing 1 is included, and an adjustable exhaust guide plate 5 is provided on the front of the housing 1. The exhaust guide plate 5 can rotate up and down on the front of the housing 1. The exhaust guide plate 5 is used to realize the exhaust of the impeller inside the housing 1 after rotation, and a plurality of exhaust ports 6 are provided on the surface of the exhaust guide plate 5. The wind generated by the impeller is discharged through the exhaust ports 6. A longitudinal adjustment component 7 installed inside the housing 1 is provided above the exhaust guide plate 5. The pitch angle of the exhaust guide plate 5 is adjusted by the longitudinal adjustment component 7, and a transverse adjustment component 8 installed inside the housing 1 is provided on the back of the exhaust guide plate 5. The size of the opening of the exhaust port 6 is adjusted by the transverse adjustment component 8, thereby controlling the exhaust volume of the cross-flow fan;

[0026] The lateral adjustment assembly 8 includes a guide rail 11 fixed on the inner wall of the housing 1, and a slider 12 is slidably connected to the guide rail 11, a windshield 9 is fixedly installed between the sliders 12, and the windshield 9 is provided with a plurality of air guide holes 10, a rack 13 is welded on the outer wall of one side of the windshield 9, and a gear 14 is meshingly connected to the top of the rack 13, a rotating handle 15 penetrating to the outside of the housing 1 is installed on the central axis of the gear 14, and the rotating handle 15 is provided on the surface of the exhaust guide plate 5;

[0027] When the operator wants to control the exhaust volume of the cross flow fan, he can hold the rotating handle 15 with his hand, so that the rotating handle 15 drives the gear 14 to rotate, and the gear 14 drives the rack 13 to move laterally. At the same time, the wind shield plate 9 is laterally guided on the guide rail 11 by the slider 12, and finally the wind shield plate 9 is moved laterally along the exhaust guide plate 5, so that the exhaust port 6 on the exhaust guide plate 5 and the air guide hole 10 on the wind shield plate 9 are misaligned to varying degrees, so as to realize the control and adjustment of the exhaust volume of the cross flow fan.

[0028] The utility model provides an air volume adjustment mechanism for a cross flow fan. Through the provided lateral adjustment component 8, the relative position between the wind shield plate 9 and the exhaust guide plate 5 can be controlled, so as to allow the air guide hole 10 to be misaligned with the exhaust port 6, so as to control the opening size of the exhaust port 6, thereby realizing the adjustment of the exhaust volume of the cross flow fan, meeting the use of the cross flow fan in different situations and achieving the desired effect.

[0029] As an embodiment provided by the utility model, pre-tightening screws 2 are provided on the outer walls of both sides of the shell 1, and brackets 3 are provided on both sides of the shell 1 through the pre-tightening screws 2, a bottom plate 4 is welded on the outer wall at the bottom end of the bracket 3, and a plurality of bolt holes are provided on the outer wall at the top of the bottom plate 4. The bracket 3 and the bottom plate 4 serve as supporting parts of the fan. The operator can flip the shell 1 on the bracket 3 by loosening the pre-tightening screws 2, and then lock it by the pre-tightening screws 2 after the flipping position, which can greatly change the exhaust direction of the cross flow fan.

[0030] As another embodiment provided by the utility model, the specifications of the air guide hole 10 are matched with the specifications of the exhaust port 6, the exhaust guide plate 5 and the wind shield plate 9 are staggered and distributed in parallel, and the air guide hole 10 and the exhaust port 6 are staggered and distributed. The principle of adjusting the exhaust volume of the cross flow fan is to change the relative position between the air guide hole 10 and the exhaust port 6, thereby achieving control of the exhaust volume of the cross flow fan.

[0031] As another embodiment provided by the utility model, the longitudinal adjustment component 7 includes a bearing seat 16 installed on the outer side wall of the shell 1, and the exhaust deflector 5 is installed on the bearing seat 16 through a rotating shaft, a through hole is provided on the outer wall of the top of the shell 1, and a guide sleeve 20 is fixedly installed inside the through hole, a guide rod 21 is inserted inside the guide sleeve 20, a rotating hinge seat 2 19 is fixedly provided at the bottom end of the guide rod 21, and a connecting rod 18 is rotatably connected to the rotating hinge seat 2 19, a rotating hinge seat 17 is provided at the bottom end of the connecting rod 18, and the rotating hinge seat 17 is installed on the outer wall of the top side of the exhaust deflector 5, a damping connection structure is adopted between the guide rod 21 and the guide sleeve 20, and a ball head 22 is welded on the outer wall of the top end of the guide rod 21;

[0032] The longitudinal adjustment component 7 adopted can adjust the pitch angle of the exhaust guide plate 5, so as to change the air outlet angle of the cross flow fan. The operator holds the ball head 22 to make the guide rod 21 have a linear motion up and down, so that the guide rail 21 slides inside the guide sleeve 20. Driven by the guide rod 21, the rotating hinge seat (rotating hinge seat 1 17 and rotating hinge seat 2 19) and the connecting rod 18, the exhaust guide plate 5 can be flipped as a whole on the bearing seat 16 and the rotating shaft to realize the change of the pitch angle.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An air volume adjustment mechanism for a cross-flow fan, comprising a housing (1), characterized in that: The front of the housing (1) is provided with an adjustable exhaust air guide plate (5), and the surface of the exhaust air guide plate (5) is provided with a plurality of exhaust ports (6); a longitudinal adjustment component (7) installed inside the housing (1) is provided above the exhaust air guide plate (5), and a transverse adjustment component (8) installed inside the housing (1) is provided on the back of the exhaust air guide plate (5); The lateral adjustment assembly (8) comprises a guide rail (11) fixed on the inner wall of the outer shell (1), and a slider (12) is slidably connected to the guide rail (11), a windshield (9) is fixedly installed between a plurality of the sliders (12), and a plurality of air guide holes (10) are arranged on the windshield (9), a rack (13) is welded on the outer wall of one side of the windshield (9), and a gear (14) is meshingly connected to the top of the rack (13), a rotating handle (15) penetrating to the outside of the outer shell (1) is installed on the central axis of the gear (14), and the rotating handle (15) is arranged on the surface of the exhaust air guide plate (5).

2. The air volume adjustment mechanism of a cross flow fan according to claim 1, characterized in that: Pre-tightening screws (2) are provided on both sides of the outer wall of the shell (1), and brackets (3) are provided on both sides of the shell (1) through the pre-tightening screws (2).

3. The air volume adjustment mechanism of a cross flow fan according to claim 2, characterized in that: A bottom plate (4) is welded to the outer wall of the bottom end of the bracket (3), and a plurality of bolt holes are arranged on the outer wall of the top of the bottom plate (4).

4. The air volume adjustment mechanism of a cross flow fan according to claim 1, characterized in that: The specifications of the air guide hole (10) are compatible with the specifications of the air outlet (6); the air exhaust guide plate (5) and the wind shield plate (9) are staggered and parallel, and the air guide hole (10) and the air outlet (6) are staggered and distributed.

5. The air volume adjustment mechanism of a cross flow fan according to claim 1, characterized in that: The longitudinal adjustment assembly (7) comprises a bearing seat (16) mounted on the outer wall of the housing (1), and the exhaust air deflector (5) is mounted on the bearing seat (16) via a rotating shaft, a through hole is provided on the outer wall of the top of the housing (1), and a guide sleeve (20) is fixedly installed inside the through hole, a guide rod (21) is inserted inside the guide sleeve (20), a rotating hinge seat 2 (19) is fixedly provided at the bottom end of the guide rod (21), and a connecting rod (18) is rotatably connected to the rotating hinge seat 2 (19), a rotating hinge seat 1 (17) is provided at the bottom end of the connecting rod (18), and the rotating hinge seat 1 (17) is mounted on the outer wall of one side of the top of the exhaust air deflector (5).

6. The air volume adjustment mechanism of a cross flow fan according to claim 5, characterized in that: A damping connection structure is adopted between the guide rod (21) and the guide sleeve (20), and a ball head (22) is welded on the outer wall of the top end of the guide rod (21).

Images