A kind of fastening device for the fan column tube
Technical field
The present invention is a kind of clamping and fixing body of the column tube for fan, belongs to the improvement innovative technology of fan column tube fastening device.
Background technique
The existing column tube fastening device that is used for fan adopts the mode that realizes clamping column tube by the instrument lock screw mostly, this structure deficiency is the installation and removal of necessary tool using ability, then can't operate when no instrument, problem such as waste time and energy when having operation simultaneously.
Summary of the invention
The objective of the invention is to overcome above-mentioned shortcoming and provide a kind of component simple in structure, required less, very practical, need not use other instrument is the dismantled and assembled fastening device that is used for the fan column tube.
Technological scheme of the present invention is: a kind of clamping and fixing body for the fan column tube, comprise column tube and body, and an end of column tube can directly insert in the column pore on the body, it is characterized in that also comprising depression bar; Wherein said body is provided with first mounting arm and second mounting arm, is provided with the elasticity tongue structure at the wall of body, and described elasticity tongue structure is between first mounting arm and second mounting arm; Described depression bar is installed between first mounting arm and second mounting arm, depression bar is lever construction, the long end of depression bar is for exposing exercisable movable button, the short end of depression bar is for realizing the dome of substrate hold-down function, the both sides of the short end of depression bar are rotationally connected with first mounting arm and second mounting arm respectively, and described dome can radially inwardly push the elasticity tongue structure along with the rotation of depression bar can cooperate with the elasticity tongue structure also.
Short end both sides at described depression bar are provided with the first concentric circular shaft and the second concentric circular shaft, be provided with first mounting hole at described first mounting arm, be provided with second mounting hole at described second mounting arm, the described first concentric circular shaft is located in first mounting hole and turns, and the described second concentric circular shaft is located in second mounting hole and turns.
The described first concentric circular shaft and the second concentric circular shaft and depression bar is structure as a whole or also can be the split structure.
The present invention's advantage compared with prior art is: owing to realize unclamping or the column tube that is locked by the operate lever principle, structure realizes simple, and required component are less, need not use any instrument can finish dismounting, and are very practical.
Description of drawings
Fig. 1 is STRUCTURE DECOMPOSITION figure of the present invention;
Fig. 2 is the STRUCTURE DECOMPOSITION figure that each member of the present invention turns over another angle;
Fig. 3 is the external view of the present invention when being in releasing orientation;
Fig. 4 is the A-A sectional view among Fig. 3;
Fig. 5 is the external view of the present invention when being in locking state;
Fig. 6 is the B-B sectional view among Fig. 5.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in further detail.
Shown in Fig. 1 to 6, a kind of clamping and fixing body for the fan column tube comprises column tube 1 and body 3, and an end of column tube 1 can directly insert in the column pore 32 on the body 3, and characteristics of the present invention are also to comprise depression bar 2; Wherein said body 3 is provided with first mounting arm 31 and second mounting arm 34, is provided with elasticity tongue structure 33 at the wall of body 3, and described elasticity tongue structure 33 is between first mounting arm 31 and second mounting arm 34; Described depression bar 2 is installed between first mounting arm 31 and second mounting arm 34, depression bar 2 is lever construction, the long end of depression bar 2 is for exposing exercisable movable button 24, the short end of depression bar 2 is for realizing the dome 21 of substrate hold-down function, the both sides of the short end of depression bar 2 are rotationally connected with first mounting arm 31 and second mounting arm 34 respectively, and described dome 21 can radially inwardly push elasticity tongue structure 33 along with the rotation of depression bar 2 can cooperate with elasticity tongue structure 33 also.
When the present invention was in releasing orientation, shown in Fig. 3,4, the dome 21 on the depression bar 2 separated with elasticity tongue structure 33 on the body 3, and column tube 1 is in releasing orientation, can detach from body.When needs clamp during column tube 1, shown in Fig. 5,6, one end of column tube 1 is inserted in the column pore 32 of design on the body 3, the movable button 24 of the long end that exposes by moulded rod 2 to body 3 one sides, dome 21 on the depression bar 2 rotates at first mounting arm 31 and second mounting arm 34, the outer side surface that turns to the elasticity tongue structure 33 on the certain position extrusion body 3 makes elasticity tongue structure 33 inside lateral surface compressing column tubes 1, plays the effect that column tube 1 is fixed that clamps.
In the present embodiment, short end both sides at described depression bar 2 are provided with the first concentric circular shaft 23 and the second concentric circular shaft 22, be provided with first mounting hole 311 at described first mounting arm 31, be provided with second mounting hole 341 at described second mounting arm 34, the described first concentric circular shaft 23 is located in first mounting hole 311 and turns, and the described second concentric circular shaft 22 is located in second mounting hole 341 and turns.During operation, dome 2A on the depression bar 2 can rotate around first mounting hole 311, second mounting hole, 341 concentrics of body 3, the outer side surface that turns to the elasticity tongue structure 33 on the certain position extrusion body 3 makes elasticity tongue structure 33 inside lateral surface compressing column tubes 1, plays the effect that column tube 1 is fixed that clamps.The described first concentric circular shaft 23 and the second concentric circular shaft 22 are structure as a whole with depression bar 2 or also can be the split structure.