CN202301110U

CN202301110U - Pitching mechanism of centrifugal blower

Info

Publication number: CN202301110U
Application number: CN201120368859XU
Authority: CN
Inventors: 王伟光; 刘维亮; 彭建军; 邓建辉
Original assignee: Midea Group
Current assignee: Midea Group Co Ltd
Priority date: 2011-10-06
Filing date: 2011-10-06
Publication date: 2012-07-04
Anticipated expiration: 2021-10-06

Abstract

The utility model relates to a centrifugal blower's every single move mechanism, including wind channel and shell, wherein the wind channel device is in the shell, its characterized in that still includes every single move support and support shell, wherein the every single move support is the short ring cylinder that has outside turn-ups, be equipped with the inside turn-ups round hole on the shell, the end edge of inside turn-ups round hole is provided with spacing recess, the short ring cylinder of every single move support passes inside turn-ups round hole and with inside turn-ups round hole tight fit from the inboard of shell, the spacing muscle cooperation that its turn-ups inboard was established falls in spacing recess and makes the turn-ups hug closely on the end edge of inside turn-ups round hole, the short ring cylinder end is fixed on the support shell, the wind channel is held to paste tightly towards the one end of. The utility model discloses a every single move support and support shell and the spacing structure of wind channel cooperation, effectual every single move regulation and the stepless regulation of every single move angle that has realized centrifugal blower, not only simple structure, simple to operate, mechanism's mechanical strength is stronger, and angular positioning is accurate, reliable moreover, and maneuverability is very high.

Description

A kind of luffing mechanism of centrifugal blower

Technical field

The utility model relates to the luffing mechanism of a kind of centrifugal blower, particularly a kind of centrifugal blower, belongs to the improvement technology of centrifugal blower luffing mechanism.

Background technique

At present, commercially available centrifugal blower does not have pitching function mostly, mainly is to lean on the swing of air outlet window grid to regulate wind direction, because wind direction is less, can't satisfy the demand of user to the wide-angle air-supply.

Summary of the invention

The purpose of the utility model be to consider the problems referred to above and provide that the air-supply of a kind of accurate positioning, wide-angle is reliable, the luffing mechanism of centrifugal blower that strong operability, mechanical strength are higher.

The technical solution of the utility model is: a kind of centrifugal blower luffing mechanism; Comprise air channel and shell; Wherein air-duct apparatus is characterized in that also comprising pitching support and support shell in the enclosure, and wherein the pitching support is the becate cylinder that has outward flanging; Shell is provided with the in-flanges circular hole; The end of in-flanges circular hole is along being provided with limited impression, the becate cylinder of pitching support pass from the inboard of shell the in-flanges circular hole and with in-flanges circular hole drive fit, the inboard set spacing muscle of its flange cooperates and drops in the limited impression and make end that flange is close to the in-flanges circular hole along last; Becate cylinder end is fixed on the support shell, and the air channel is adjacent to towards an end of pitching support and the lapped pipe end of pitching support.

Said spacing muscle is the square shape; Be arranged on the place, neck angle that flange and becate cylinder join; The end of becate cylinder is installed bayonet socket along the limited bayonet that is provided with two symmetries and with limited bayonet staggers more than three, and corresponding each internal surface that bayonet socket becate cylinder is installed is provided with the screw erection column.

Said support shell comprises backboard and circular arc half housing; The bottom of its dorsulum and half housing link together; The middle and upper part offers the corresponding circular hole of becate cylinder with the pitching support; The vertical radial line of circular hole is provided with and the corresponding positioning bar of limited bayonet, and the madial wall of circular hole is provided with and installs the corresponding fixture block of bayonet socket.

The in-flanges circular hole of said shell is arranged on the middle part of shell, and limited impression is the arc groove of 90 degree.

The utility model adopts pitching support and support shell to cooperate spacing structure with shell and air channel, has effectively realized the pitch regulation and the luffing angle step-less adjustment of centrifugal blower, and is not only simple in structure, easy for installation, and angular positioning accurately, reliably.

Description of drawings

Fig. 1 is the decomposition texture schematic representation of the utility model;

Fig. 2 is the sectional view of the utility model;

Fig. 3 is the structural representation of the pitching support of the utility model;

Fig. 4 is the shell mechanism schematic representation of the utility model;

Fig. 5 is the support shell structural representation of the utility model;

Fig. 6 acts on the schematic representation on the utility model shell for external force;

Fig. 7 is the partial enlarged drawing at E place among Fig. 2.

Embodiment

Following structure accompanying drawing and embodiment further describe the utility model.

Like Fig. 1,2, shown in 4; The utility model centrifugal blower luffing mechanism; Comprise air channel 1, shell 2, pitching support 3 and support shell 4, wherein air channel 1 device is in shell 2, and pitching support 3 is the becate cylinder 32 that has outward flanging 31; Shell 2 is provided with in-flanges circular hole 21; The end of in-flanges circular hole 21 is along being provided with limited impression 211, the becate cylinder 32 of pitching support 3 pass from the inboard of shell 2 in-flanges circular hole 21 and with in-flanges circular hole 21 inwall drive fits, its flange 31 inboard set spacing muscle 33 cooperate and drop in the limited impression 211 and make end that flange 31 is close to the in-flanges circular hole along last; Becate cylinder end is fixed on the support shell 4, and air channel 1 is adjacent to towards an end of pitching support 3 and flange 31 ends of pitching support 3.In the present embodiment, the in-flanges circular hole 21 of said shell 2 is arranged on the middle part of shell 2, and limited impression 211 is the arc groove of 90 degree.

As shown in Figure 3; Said spacing muscle 33 is the square shape; Being arranged on flange 31 locates with the neck angle that becate cylinder 32 joins; The end edge of becate cylinder 32 is provided with the limited bayonet 35 of two symmetries and the installation bayonet socket 36 more than three that staggers with limited bayonet 35, and the internal surface of corresponding each installation bayonet socket 36 becate cylinder 32 is provided with screw erection column 34.

As shown in Figure 5; Said support shell 4 comprises backboard 41 and circular arc half housing 42; The bottom of its dorsulum 41 and half housing 42 link together; The middle and upper part offers the becate cylinder 32 corresponding circular holes with pitching support 3, and the vertical radial line of circular hole is provided with and limited bayonet 35 corresponding positioning bars 43, and the madial wall of circular hole is provided with and installs bayonet socket 36 corresponding fixture blocks 44.

The utility model working principle is following: air channel 1 forms whole A through the screw connection set in shell 2, and support shell connects and whole B of pitching support formation through screw.These two integral body cooperate realization to rotate each other through the becate cylinder of pitching support and the in-flanges circular hole of shell, and cooperate the location of realizing angle through the spacing muscle of pitching support with the limited impression of shell.As shown in Figure 6; When external force F acts on the shell; Above-mentioned whole A is rotated with pitching carriage center C; Thereby the realization pitch regulation, meanwhile, frictional force and the lapped pipe end of pitching support and the accurate location that the frictional force between the air channel realizes angle between the in-flanges circular hole of two whole A, B becate cylinder and the shell through the pitching support.Because adopt frictional force to realize angular positioning, so luffing angle does not have clear and definite gear, head can be located on any angular position, thereby realize the step-less adjustment of luffing angle in 0～90 degree scope.

[0014]The frictional force between the becate cylinder 32 of pitching support and the in-flanges circular hole 21 of shell and the flange 31 of pitching support and the frictional force between the air channel 1 are that the double insurance effect has been played in the accurate location of blower luffing angle; Reduced the possibility that pitching function lost efficacy; Like accompanying drawing 7, in addition, carry out the location of luffing angle through frictional force and reduced special luffing mechanism; Simplify product structure, improved efficiency of assembling.

Claims

1. the luffing mechanism of a centrifugal blower; Comprise air channel (1) and shell (2); Wherein air channel (1) device is in shell (2); It is characterized in that also comprising pitching support (3) and support shell (4); Wherein pitching support (3) is the becate cylinder that has outward flanging (31), and shell (2) is provided with in-flanges circular hole (21), and the end of in-flanges circular hole (21) is along being provided with limited impression (211); The becate cylinder (32) of pitching support (3) pass from the inboard of shell (2) in-flanges circular hole (21) and with in-flanges circular hole drive fit; The inboard set spacing muscle (33) of its flange (31) cooperates and drops in the limited impression (211) and make end that flange (31) is close to the in-flanges circular hole along last, and becate cylinder end is fixed on the support shell (4), and air channel (1) is held towards the flange (31) of end of pitching support (3) and pitching support (3) and is adjacent to.

2. the luffing mechanism of blower according to claim 1; It is characterized in that said spacing muscle (33) is the square shape; Be arranged on the place, neck angle that flange (31) and becate cylinder (32) join; The end of becate cylinder (32) is installed bayonet socket (36) along the limited bayonet (35) that is provided with two symmetries and with limited bayonet (35) staggers more than three, corresponding each internal surface that bayonet socket (36) becate cylinder (32) is installed is provided with screw erection column (34).

3. the luffing mechanism of blower according to claim 2; It is characterized in that said support shell (4) comprises backboard (41) and circular arc half housing (42); Bottom of its dorsulum (41) and half housing (42) link together; The middle and upper part offers the corresponding circular hole of becate cylinder (32) with pitching support (3); The vertical radial line of circular hole is provided with and the corresponding positioning bar of limited bayonet (35) (43), and the madial wall of circular hole is provided with and installs the corresponding fixture block of bayonet socket (36) (44).

4. according to the luffing mechanism of each described blower of claim 1 to 3, it is characterized in that the in-flanges circular hole (21) of said shell (2) is arranged on the middle part of shell (2), limited impression (211) is the arc groove of 90 degree.