CN201335495Y

CN201335495Y - Automatic lifting grille of air-conditioner

Info

Publication number: CN201335495Y
Application number: CNU2008202017261U
Authority: CN
Inventors: 毛先友; 舒乐华; 程竑理; 陈睿
Original assignee: Guangdong Midea Electric Appliances Co Ltd
Current assignee: Midea Group Wuhan Refrigeration Equipment Co Ltd
Priority date: 2008-10-07
Filing date: 2008-10-07
Publication date: 2009-10-28
Anticipated expiration: 2018-10-07

Abstract

The utility model relates to an automatic lifting grille of an air-conditioner. The automatic lifting grille comprises the air-conditioner. An air-inlet grille of the air-conditioner adopts a lift type, and a ratchet lifter is arranged above the air-inlet grille; the ratchet lifter comprises an electrical motor, a worm shaft, worms, worm wheels, worm-wheel shafts and ratchet mechanisms which are connected sequentially; the ratchet lifter is fixed on a pedestal of the air-inlet grille; the worms respectively fixed at two ends of the worm shaft are meshed with the worm wheels respectively; the ratchet mechanisms are respectively arranged at the two ends of each worm-wheel shaft; a ratchet wheel, a ratchet shaft and a belt pulley are arranged in each ratchet mechanism; the four belt pulleys are wrapped by belts; and the other end of each belt is respectively fixed to four corners of the air-inlet grille. When a user needs to clean an air screen, the air-inlet grille can be controlled to be lowered automatically through a remote controller of the air-conditioner, and the user can remove the air screen conveniently on the floor; and the air-inlet grille is controlled to be lifted to an original position automatically through the remote controller after being cleaned. The utility model has the advantages of simple structure and convenient disassembly and assembly.

Description

The automatic lifting grid of air-conditioner

Technical field

The utility model relates to the automatic lifting grid and the ratchet elevator structure of a kind of air-conditioner, particularly air-conditioner.

Background technology

Air-conditioner in use often will clean airstrainer.But traditional air-conditioner air-inlet grille panel is all fastening with forms such as screw or buckles, and the user wants to take out airstrainer, must remove hold-down screw earlier or unclamp its buckle, takes off the air-inlet grille panel, and then takes out airstrainer.Because the part air-conditioner is installed on the overhead higher position, the user must stand on the higher stool or on other brace table, removes trip bolt earlier or unclamp its buckle when removing airstrainer, open the air-inlet grille panel then, take out airstrainer again and clean.This mode of operation has caused very big inconvenience to users, and dangerous.

The utility model content

The purpose of this utility model aims to provide a kind of automatic lifting grid and ratchet elevator structure thereof of air-conditioner simple and reasonable, easy and safe to operate, to overcome weak point of the prior art.

Press the automatic lifting grid of a kind of air-conditioner of this purpose design, comprise air-conditioner, its architectural feature is that the air-inlet grille of air-conditioner is a lift, and a ratchet elevator structure is set above air-inlet grille.

Described ratchet elevator structure comprises motor, worm shaft, worm screw, worm gear, worm-wheel shaft and the ratchet mechanism that connects successively.The ratchet elevator structure is fixed on the air-inlet grille base, and the worm shaft two ends are fixed with worm screw respectively, and worm screw meshes with worm gear respectively, and the two ends of worm-wheel shaft are respectively arranged with ratchet mechanism, are provided with ratchet, ratchet shaft and belt pulley in the ratchet mechanism; Be wound with belt respectively on four belt pulleys, the other end of belt is separately fixed on four corners of air-inlet grille.

Described ratchet elevator structure comprises motor, worm screw, worm gear and the ratchet mechanism that is arranged on the supporting seat wherein; Worm screw on another supporting seat, worm gear and ratchet mechanism; Ratchet mechanism on all the other two supporting seats; And connect and transmit motion by worm shaft and two worm-wheel shafts; Described supporting seat is by square arrangement, and air-inlet grille also is square, and belt is quadrangle and arranges.Belt section is to prevent the pancake of skidding.

The air-conditioner air-inlet grille with automatic lifting function of the utility model design, when the user need clean airstrainer, can control air-inlet grille by air-conditioning remote control and lower automatically, subscriber station just can take out airstrainer easily on the floor; Put back to the origin-location behind the scavenging air screen pack again, automatically rise to original position by remote controller control air-inlet grille again, air-conditioner can recover normal use.It has advantage simple in structure, dismounting airstrainer simple and convenient, has improved the air-conditioner humanized design concept greatly.

Description of drawings

Fig. 1 is the utility model ratchet elevator structure one example structure schematic diagram.

Fig. 2 is an A place enlarged drawing among Fig. 1.

Fig. 3 is ratchet elevator structure and air-inlet grille and panel base assembly structure front view.

Fig. 4 is ratchet elevator structure and air-inlet grille and panel base assembly structure stereogram.

Fig. 5 is the ratchet mechanism structural representation.

Fig. 6 is the decomposition texture schematic diagram of Fig. 5.

Fig. 7 is the belt pulley cutaway view.

Fig. 8 is the ratchet front view.

Fig. 9 is the ratchet shaft stereogram.

Among the figure:

1 is ratchet mechanism, and 2 is worm gear, and 3 is worm screw, and 4 is motor, 5 is worm-wheel shaft, and 6 is fixation clip, and 7 is worm shaft, and 8 is supporting seat, 9 is the ratchet elevator structure, and 10 is the air-inlet grille base, and 11 is belt, and 12 is airstrainer, 13 is air-inlet grille, and 14 is belt pulley, and 14.1 is the spill end cap, and 14.2 is trip, 15 is ratchet, and 15.1 is the elasticity ratchet, and 15.2 is the strain point of rotation, and 15.3 is end face, 15.4 be the side, 16 is ratchet shaft, 16.1 is vertical screens, and 16.2 is oblique screens.

The specific embodiment

Referring to Fig. 1--Fig. 4, this ratchet elevator structure 9 comprises successively the motor 4 that connects, worm shaft 7, two worm screws 3, two worm gears 2 and two worm-wheel shafts 5, motor 4 is fixed on the supporting seat 8, and four ratchet mechanisms 1 are fixed on four supporting seats, the 8 corresponding positions.Ratchet mechanism 1 is assembled by ratchet 15, ratchet shaft 16 and belt pulley 14, and wherein ratchet 15 is fixedlyed connected with belt pulley 14, or ratchet 15 and belt pulley 14 are designed to an integral body; Ratchet 15 be provided with one to several by clockwise or counterclockwise evenly distributed elasticity ratchet 15.1, the ratchet of ratchet shaft 16 also correspondingly be provided with one to several by clockwise or evenly distributed screens counterclockwise, the root of each the elasticity ratchet on the ratchet 15 is provided with the strain point of rotation 15.2, minimum wall thickness (MINI W.) is the 1/2t to 2/3t of rib wall thickness t herein, as shown in Figure 8.Ratchet shaft 16 is snapped in the ratchet 15, the end face 15.3 of each elasticity ratchet 15.1 on the ratchet 15 is contacted with each vertical screens 16.1 of ratchet shaft 16 ratchets; The side 15.4 of each elasticity ratchet 15.1 on the ratchet 15 is contacted with each oblique screens 16.2 of ratchet shaft 16 ratchets, constitute ratchet mechanism.On four belt pulleys 1, twine four belts 11 respectively, belt be wound with the certain requirement of direction, as shown in Figure 6, see along ratchet shaft 16 end faces, it is evenly distributed that elasticity ratchet 15.1 on the ratchet 15 is defined as clockwise direction, belt on the belt pulley 14 just twines by counter clockwise direction so. and the purpose of Chan Raoing is to guarantee can correctly be in place after air-inlet grille rises like this, the position that promptly touches the air-inlet grille base earlier makes the ratchet elasticity ratchet 15.1 in the ratchet mechanism produce deformation under the effect of resistance, ratchet 15 and belt pulley 14 are stopped the rotation, ratchet shaft 16 continues rotation, by default motor rotational time, after being risen, air-inlet grille can correctly be in place.For the difference that guarantees four belts 11 dropping distance in the process that descends better as much as possible little, specially belt 11 is designed to pancake, and have certain toughness and intensity, and an end of belt 11 and belt pulley 14 are fixing, and the air-inlet grille 13 of the other end and air-conditioner is fixing.Ratchet elevator structure 9 is fixed on the air-inlet grille base 10 of air-conditioner.

The present embodiment course of work is as follows:

Motor 4 drives 3 rotations of two worm screws by coupled worm shaft 7, worm screw 3 transmission is again given two worm gears 2, simultaneously the original direction of motion is carried out spatial alternation (promptly being transformed to two by horizontal rotatablely moving rotatablely moves longitudinally), two worm gears 2 drive 16 rotations of four ratchet shafts by worm-wheel shaft 5, ratchet shaft 16 drives ratchet 15 and belt pulley 14 rotations, and belt 11 will progressively be wrapped on the belt pulley 14 or progressively unclamp winding at this moment.As shown in Figure 5, when belt pulley 14 is pressed direction shown in the ω 1 when rotation, the end face 15.3 of each elasticity ratchet 15.1 contact and transmits motion on ratchet shaft 16 each vertical screens 16.1 by ratchet and the ratchet 15, and drive ratchet 15 and belt pulley 14 rotate.When belt pulley 14 is pressed direction shown in the ω 2 when rotation, the side 15.4 of each elasticity ratchet 15.1 contact and transmits motion drive ratchet 15 and belt pulley 14 rotates on ratchet shaft 16 each oblique screens 16.2 by ratchet and the ratchet 15.Simultaneously when ratchet shaft 16 is pressed the rotation of ω 2 directions, ratchet 15 and belt pulley 14 can be controlled it and ratchet shaft 16 rotates synchronously by the elastic force of default elasticity ratchet, still stop the rotation, when the suffered moments of resistance of ratchet 15 and belt pulley 14 than the elastic force resultant moment of default elasticity ratchet hour, it will rotate synchronously with ratchet shaft 16; When the suffered moments of resistance of ratchet 15 and belt pulley 14 are bigger than the elastic force resultant moment of default elasticity ratchet, it will stop the rotation.The big I of moment shell is carried out rational design load in practice, to satisfy corresponding requirement.

When the user needs scavenging air screen pack 12 to clean, send corresponding operational order by air-conditioning remote control, mechanism receives instruction and handles accordingly, make motor 4 rotations, as shown in Figure 4, motor 4 makes four belt pulleys 14 by the rotation of the direction shown in the ω 1 by corresponding transmission mechanism, and air-inlet grille 13 is landing downwards automatically under the effect of gravity.When dropping to when being fit to the position, the user can send halt instruction by air-conditioning remote control; Perhaps air-inlet grille 13 stops automatically by the falling head that mechanism sets, and mechanism writes down motor running time T in this course automatically.The user can take out airstrainer 12 easily and cleaned this moment.After the user has cleaned airstrainer 12 and correctly has been installed to air-inlet grille, send corresponding operational order by air-conditioning remote control, mechanism receives instruction and handles accordingly, make motor 4 reverse rotations, and the time that the motor operation is set is T+T1 (T1 is for setting in 1 second to 30 seconds interval according to actual needs), as shown in Figure 4, motor 4 makes four belt pulleys 14 by the direction shown in the ω 2 rotation by corresponding transmission mechanism, air-inlet grille 13 rise that just can make progress automatically this moment.When the motor running time T, because the adjustable height of four belts can be inequal fully, some positions of air-inlet grille may be in place, the ratchet mechanism 1 generation effect of contact area at this moment, this regional belt pulley will stop the rotation, its excess-three ratchet mechanism generation effect in succession in the time T 1 of motor operation makes air-inlet grille 13 and air-inlet grille base 10 be in place at last.Utilize the reverse auto-lock function of worm and gear transmission simultaneously, and the ratchet of design and the elastic deformation resultant moment between the ratchet shaft are than air-inlet grille and 3 times of functions that realize self-locking of big 1.5 ∽ of screen pack gravity torque herein, air-inlet grille 13 is fastened on it on air-inlet grille base 10 by four belts 11, and this moment, air-conditioning returned to normal operating conditions.More than be that the user realizes the process that the primary air screen pack cleans.

Referring to Fig. 5-Fig. 7, the cross section of belt pulley is I-shaped, and an end is provided with spill end cap 14.1, and ratchet embeds in the spill end cap, and the female end cover outer wall is provided with three trip 14.2 fixed ratchet wheels; And belt pulley and ratchet are similar D shape or large semi-circular, are convenient to fastening in order to avoid skid.The inclination angle of the elasticity ratchet of ratchet is 20 degree-60 degree, as shown in Figure 8.Belt pulley and ratchet can also adopt alternate manner to fix.

This ratchet elevator structure can also be applied in other similar device.

Claims

1. the automatic lifting grid of an air-conditioner comprises air-conditioner, it is characterized in that the air-inlet grille (13) of air-conditioner is a lift, and a ratchet elevator structure (9) is set above air-inlet grille.

2. according to the automatic lifting grid of the described air-conditioner of claim 1, it is characterized in that described ratchet elevator structure comprises motor (4), worm shaft (7), worm screw (3), worm gear (2), worm-wheel shaft (5) and the ratchet mechanism (1) that connects successively.

3. according to the automatic lifting grid of the described air-conditioner of claim 2, it is characterized in that described ratchet elevator structure is fixed on the air-inlet grille base (10), the worm shaft two ends are fixed with worm screw respectively, worm screw meshes with worm gear respectively, the two ends of worm-wheel shaft are respectively arranged with ratchet mechanism, are provided with ratchet (15), ratchet shaft (16) and belt pulley (14) in the ratchet mechanism; Be wound with belt (11) on four belt pulleys respectively, the other end of belt is separately fixed on four corners of air-inlet grille.

4. according to the automatic lifting grid of claim 1 or 3 described air-conditioners, it is characterized in that described ratchet elevator structure comprises motor, worm screw, worm gear and the ratchet mechanism that is arranged on the supporting seat wherein; Worm screw on another supporting seat, worm gear and ratchet mechanism; Ratchet mechanism on all the other two supporting seats; And connect and transmit motion by worm shaft and two worm-wheel shafts; Described supporting seat is by square arrangement, and air-inlet grille also is square, and belt is quadrangle and arranges.

5. according to the automatic lifting grid of the described air-conditioner of claim 4, it is characterized in that described ratchet elevator structure comprises belt pulley and belt, one side of belt pulley is fixed with ratchet, the ratchet periphery uniform elasticity ratchet (15.1) that slopes inwardly, ratchet shaft is provided with ratchet and cooperates transmission with the elasticity ratchet, drives belt pulley and twines or decontrol belt; The root of each elasticity ratchet is provided with the strain point of rotation (15.2), and minimum wall thickness (MINI W.) is 1/22/3 of an elasticity ratchet wall thickness herein; The number of teeth of the ratchet of ratchet shaft is identical with the number of teeth of elasticity ratchet.

6. according to the automatic lifting grid of the described air-conditioner of claim 3, it is characterized in that described belt section is to prevent the pancake of skidding.