Lifting movable fan

Abstract

The utility model provides a liftable movable fan, and belongs to the technical field of fans. The lifting device comprises a fan, a lifting mechanism is arranged below the fan, the lifting mechanism comprises a base frame arranged below the fan, a transverse shaft driven by a servo motor to rotate is fixed to the base frame, chain wheels are fixed to the two ends of the transverse shaft, and lifting sets which are identical in structure and matched with the chain wheels at the two ends of the transverse shaft are fixed to the two ends of the base frame. The lifting set comprises a fixing rod longitudinally fixed to one side of the transverse shaft, a driven chain wheel meshed with the chain wheel through a loop chain is arranged at the top of the fixing rod, a first sliding rod is fixed to a chain link of the loop chain, a single chain is fixed to the lower end of one side of the fixing rod, and a side chain wheel meshed with the single chain is arranged at the top of the first sliding rod. Second sliding rods are fixed to the other ends of the single chains, and the two sides of the draught fan are connected between the tops of the two second sliding rods. The fan lifting device has the advantages of stable fan lifting, wide application range and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of fans, in particular to a liftable and movable fan. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and discharge gas.

[0003] Usually, high-power fans need to be moved during use to facilitate different working environments. During the movement, the fan makes a certain turn to meet the required gas delivery requirements. However, when there is a high requirement for the fan, the traditional setting and the bracket at the bottom of the fan cannot meet it. Summary of the invention

[0004] The utility model aims to solve the above problems and provide a movable fan which can be lifted and lowered stably and has a wide application range.

[0005] The purpose of the utility model is achieved in this way:

[0006] The yoke is an axial lift mechanism which is arranged on the lower part of the fan, and the axial lift mechanism comprises a base frame arranged on the lower part of the fan, a transverse axis which is rotated by a servo motor and is fixed on the base frame, sprockets are fixed on both ends of the transverse axis, and a lifting group which has the same structure and is compatible with the sprockets at both ends of the transverse axis is fixed on both ends of the base frame, and the lifting group comprises a fixed rod which is longitudinally fixed to one side of the transverse axis, a driven sprocket which is meshed with the sprocket through an endless chain is arranged on the top of the fixed rod, a first sliding bar is fixed on the chain link of the endless chain, a single chain is fixed on the lower end of one side of the fixed rod, a side sprocket which is meshed with the single chain is arranged on the top of the first sliding bar, and a second sliding bar is fixed on the other end of the single chain, and two sides of the fan are connected between the tops of the two second sliding bars, and when the servo motor drives the transverse axis to rotate, the endless chain drives the first sliding bar to rise, and the first sliding bar drives the second sliding bar to move upward synchronously through the single chain.

[0007] The utility model is further configured that a plurality of reinforcing connecting rods are arranged between the two lifting groups.

[0008] The utility model is further configured that the reinforcing connecting rod comprises a first cross frame fixed between two fixing rods, and a first oblique bar fixed between the fixing rods and the base frame.

[0009] The utility model is further configured that the reinforcing connecting rod includes a connecting plate located on the inner side of the first sliding rod, one side of the connecting plate is fixedly connected to the chain link on the ring chain, and a second cross frame is fixed between the connecting plates on both sides.

[0010] The utility model is further configured that an "X"-shaped reinforcement rod is arranged between the two second sliding rods.

[0011] The utility model is further configured such that a hinge frame is fixed on the top of the second sliding rod, a hinge shaft with one end fixed to the side wall of the fan is rotatably arranged in the hinge frame, and a locking nut abutting against the side wall of the hinge frame is screwed on the other end of the hinge shaft.

[0012] The utility model is further configured such that an arc rod is fixed on the second sliding rod, and an arc hole is opened on the arc rod, and an adjustment shaft embedded in the arc hole is fixed on the side wall of the fan, and when the fan rotates along the hinge axis, the adjustment shaft moves along the arc hole.

[0013] The utility model is further configured that a plurality of universal wheels are arranged at the bottom of the base frame.

[0014] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0015] 1. The fan provided by the utility model is driven by a servo motor, which drives the synchronous movement of the single chain and the ring chain through the rotation of the horizontal axis, thereby realizing the synchronous upward or downward movement of the first slide bar and the second slide bar, and realizing the stable upward and downward movement of the fan fixed between the two second slide bars, so that the fan has a wider range of use.

[0016] 2. The utility model further provides several reinforcing connecting rods to provide better stability for each position under synchronous movement.

[0017] 3. The utility model further provides an articulated frame on the top of the second slide bar, which facilitates the fan to be adjusted to a certain angle, so that it has a wider range of applicable directions.

[0018] 4. The utility model further provides an arc hole, which facilitates fixing the fan after rotating and adjusting the direction, ensuring normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a partial structure diagram of the utility model. Figure 1 ;

[0021] Figure 3 It is a partial structure diagram of the utility model. Figure 2 ;

[0022] Reference numerals:

[0023] 1-Blower

[0024] 2-lifting mechanism; 20-base frame; 21-servo motor; 22-horizontal axis; 23-sprocket;

[0025] 3-lifting group; 30-fixed rod; 300-ring chain; 301-driven sprocket; 302-single chain; 31-first slide bar; 310-side sprocket; 32-second slide bar; 33-arc rod; 330-arc hole; 331-adjusting shaft;

[0026] 4-reinforced connecting rod; 40-first cross frame; 41-first slash; 42-connecting plate; 43-second cross frame; 44-"X" type reinforcing rod;

[0027] 5-articulated frame; 50-articulated shaft. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings. Figure 1 — Figure 3 :

[0029] A liftable fan comprises a fan 1, a lifting mechanism 2 is arranged below the fan 1, the lifting mechanism 2 comprises a base frame 20 arranged below the fan 1, a horizontal shaft 22 driven by a servo motor 21 is fixed on the base frame 20, sprockets 23 are fixed at both ends of the horizontal shaft 22, lifting groups 3 with the same structure and adapted to the sprockets 23 at both ends of the horizontal shaft 22 are fixed at both ends of the base frame 20, the lifting group 3 comprises a fixing rod 30 fixed longitudinally to one side of the horizontal shaft 22, a driven chain 300 meshed with the sprocket 23 through a ring chain 300 is arranged on the top of the fixing rod 30 Wheel 301, a first slide bar 31 is fixed on the chain link of the ring chain 300, a single chain 302 is fixed to the lower end of one side of the fixed rod 30, a side sprocket wheel 310 meshing with the single chain 302 is arranged on the top of the first slide bar 31, a second slide bar 32 is fixed to the other end of the single chain 302, and both sides of the fan 1 are connected between the tops of the two second slide bars 32. When the servo motor 21 drives the horizontal shaft 22 to rotate, the ring chain 300 drives the first slide bar 31 to rise, and the first slide bar 31 drives the second slide bar 32 to move upward synchronously through the single chain 302.

[0030] During the implementation, the horizontal axis is driven by a servo motor 21 on one side, so that it rotates and drives the sprocket on one side to rotate synchronously. Further, it drives the ring chain on one side to transmit. Since the first slide bar is a link on the ring chain, when the ring chain is transmitted along the sprocket, the first slide bar on the link moves up or down. Further, according to the single chain, the side sprocket set on the top side of the first slide bar moving upward or downward drives the second slide bar at the end of the single chain to move upward or downward.

[0031] By adopting the above-mentioned implementation mode, both sides of the fan can rise or fall synchronously, making the rise and fall more stable without jamming.

[0032] In the above structure, chain cases are provided outside the ring chain and the single chain. The chain cases can not only ensure that the two chains will not be twisted during the transmission process, but also allow the first slide bar and the second slide bar provided on the chain links to maintain good stability and are not prone to deflection.

[0033] Preferably, a plurality of reinforcing connecting rods 4 are provided between the two lifting groups 3 .

[0034] In the above structure, although the two lifting groups 3 are lifted and lowered synchronously by the rotation of the horizontal axis, in order to further enhance the stability of both sides, the reinforcing connecting rods 4 are provided to provide more reasonable supporting performance.

[0035] Preferably, it is characterized in that the reinforcing connecting rod 4 includes a first cross frame 40 fixed between two fixing rods 30 , and a first oblique bar 41 fixed between the fixing rod 30 and the base frame 20 .

[0036] Preferably, the reinforcing connecting rod 4 includes a connecting plate 42 located inside the first sliding rod 31 , one side of the connecting plate 42 is fixedly connected to the link on the endless chain 300 , and a second cross frame 43 is fixed between the connecting plates 42 on both sides.

[0037] Preferably, an “X”-shaped reinforcing rod 44 is provided between the two second sliding rods 31 .

[0038] In the above implementation process, the first cross frame 40, the first diagonal bar 41, the connecting plate 42 and the ends of the second cross frame 43 are all fixed by bolts, and all of them are for enhancing the stability when ascending or descending.

[0039] Preferably, an articulated frame 5 is fixed to the top of the second slide rod 32 , and an articulated shaft 50 is rotatably provided inside the articulated frame 5 , one end of which is fixed to the side wall of the fan 1 , and the other end of the articulated shaft 50 is threaded with a locking nut that abuts against the side wall of the articulated frame 5 .

[0040] In the above structure, the hinge shaft 50 provides connection between the two ends of the fan, so that it can be fixed between the tops of the two second slide bars.

[0041] Preferably, an arc rod 33 is fixed on the second sliding rod 32, and an arc hole 330 is opened on the arc rod 33. An adjustment shaft 331 embedded in the arc hole 330 is fixed on the side wall of the fan 1. When the fan 1 rotates along the hinge shaft 331, the adjustment shaft 331 moves along the arc hole 330.

[0042] Furthermore, if the fan needs to be rotated to a certain angle, the fan is rotated along the hinge shaft 331 , and the adjustment shaft 331 is rotated along the arc hole to the required angle, and the adjustment shaft 331 is tightened to achieve locking.

[0043] Preferably, a plurality of universal wheels are provided at the bottom of the base frame 20 for overall movement of the fan.

[0044] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A movable fan that can be raised and lowered, It is characterized in that The invention comprises a fan (1), wherein a lifting mechanism (2) is arranged below the fan (1), wherein the lifting mechanism (2) comprises a base frame (20) arranged below the fan (1), wherein a transverse shaft (22) driven to rotate by a servo motor (21) is fixed on the base frame (20), sprocket wheels (23) are fixed at both ends of the transverse shaft (22), and lifting groups (3) having the same structure and matching the sprocket wheels (23) at both ends of the transverse shaft (22) are fixed at both ends of the base frame (20), wherein the lifting group (3) comprises a fixing rod (30) fixed longitudinally to one side of the transverse shaft (22), and a driven sprocket wheel (300) meshed with the sprocket wheel (23) via a chain (300) is arranged at the top of the fixing rod (30). 01), a first slide bar (31) is fixed on the link of the ring chain (300), a single chain (302) is fixed on the lower end of one side of the fixed rod (30), a side sprocket (310) meshing with the single chain (302) is arranged on the top of the first slide bar (31), a second slide bar (32) is fixed on the other end of the single chain (302), both sides of the fan (1) are connected between the tops of the two second slide bars (32), when the servo motor (21) drives the horizontal shaft (22) to rotate, the ring chain (300) drives the first slide bar (31) to rise, and the first slide bar (31) drives the second slide bar (32) to move upward synchronously through the single chain (302).

2. A liftable and movable fan according to claim 1, It is characterized in that A plurality of reinforcing connecting rods (4) are arranged between the two lifting groups (3).

3. A liftable and movable fan according to claim 2, It is characterized in that The reinforcing connecting rod (4) comprises a first cross frame (40) fixed between two fixing rods (30), and a first oblique bar (41) fixed between the fixing rod (30) and the base frame (20).

4. A liftable and movable fan according to claim 2 or 3, It is characterized in that The reinforcing connecting rod (4) comprises a connecting plate (42) located inside the first sliding rod (31), one side of the connecting plate (42) is fixedly connected to the chain link on the endless chain (300), and a second cross frame (43) is fixed between the connecting plates (42) on both sides.

5. A liftable and movable fan according to claim 2 or 3, It is characterized in that An "X"-shaped reinforcing rod (44) is arranged between the two second sliding rods (32).

6. The liftable and movable fan according to claim 1, It is characterized in that An articulated frame (5) is fixed to the top of the second sliding rod (32), and an articulated shaft (50) is rotatably arranged inside the articulated frame (5), one end of which is fixed to the side wall of the fan (1), and the other end of the articulated shaft (50) is threadedly connected to a locking nut that abuts against the side wall of the articulated frame (5).

7. A liftable and movable fan according to claim 6, It is characterized in that An arc-shaped rod (33) is fixed on the second sliding rod (32), and an arc-shaped hole (330) is provided on the arc-shaped rod (33). An adjustment shaft (331) embedded in the arc-shaped hole (330) is fixed on the side wall of the fan (1). When the fan (1) rotates along the hinge shaft (50), the adjustment shaft (331) moves along the arc-shaped hole (330).

8. The liftable and movable fan according to claim 1, It is characterized in that A plurality of universal wheels are arranged at the bottom of the base frame (20).

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