CN2200748Y - Landing extension pipe-head for lamp stand - Google Patents

Abstract

The utility model relates to a landing extension pipe head for a lamp stand, particularly a landing extension pipe head for a lamp stand which can be lightly fallen. The utility model comprises an outer pipe body, an inner pipe body, a check body, a rubber body and a segment joining body. The bottom of the inner pipe body is put into the check body, the trepan boring of the rubber body is sheathed in the nick slot of the check body which is put into the inner pipe body, and the inner pipe body is impacted to a forced combination pipe continuing to the face of an inclined pipe; concave holes are opened on the rolling ring groove of the inner pipe body to make the check body positioned, a C-shaped pumping stopping ring is put in the rolling ring groove, and a bottom plug body is arranged at the bottom of the outer pipe body. The utility model can make the lamp stand lightly fallen and has the functions of pumping stopping and discharge stopping. The utility model has the advantages of safe extension and simple structure.

Description

Landing extension pipe-head for lamp stand

The utility model relates to the flexible tube head of the used lamp bracket landing of light fixture.

Must use the bigger polishing of body light fixture than the photography of tool scale and film making scene etc., the employed fixedly lamp bracket of this light fixture, must be relatively more firm, the height and the angle of light should be adjusted arbitrarily simultaneously, also are the form that the structure of lamp bracket will be designed to adjustable flexible height.In the prior art, the lower end central authorities of respectively managing at its layer overlaps are equipped with steam vent, when body descend to shrink, inner air is discharged gradually by steam vent, at the set airtight construction in steam vent end is to be plugged with the stopping leak body in body, it is roll extrusion location outside body only, just can reach the effect of leak-stopping air; Below the stopping leak body, be provided with the leather cup public affairs, and can reach airtight requirement by E shape button is fixing.This whole stopping leak structure is very complicated, and the processing trouble, the assembling difficulty, and relative cost is also high.

Because the shortcoming of the flexible tube head of prior art lamp bracket landing, the design people sets about developing, having collected the flexible tube head of all relevant lamp bracket landing is assessed, rely on the designer to be engaged in the experience of the industry designing institute accumulation, again via after the computer simulation correction, constantly study improvement and field test, develop the utility model finally.

The purpose of this utility model is: provide a kind of lamp bracket landing to shrink tube head, this tube head makes lamp bracket relax landing and safety is flexible, and flexible link is closely stable, stopping leak is arranged and only take out function.

Another purpose of the utility model is, provides a kind of lamp bracket landing to shrink tube head, and this tube head is simple in structure, uses effect good and cheap for manufacturing cost.

The purpose of this utility model reaches like this; Provide a kind of lamp bracket landing to shrink tube head, the flexible tube head of this lamp bracket landing has more piece on lamp bracket, size is dwindled one by one, the wideest outer tube body of each joint can be taken in each joint interior tube body corresponding with it one by one, and the flexible tube head of lamp bracket landing that said its size and interior tube body adapt is in each interior tube body end, and its size is corresponding with the interior tube body footpath of different joints, the flexible tube head of said lamp bracket landing comprises outer tube body, interior tube body, stopping leak body, rubber body and joint conjugant; Least significant end at outer tube body is provided with the bottom plug body, is provided with pore in the middle of this bottom plug body, is provided with the roll extrusion annular groove on interior tube body, is equipped with the shrinkage pool that makes the stopping leak location on this roll extrusion annular groove, puts the C type and only take out ring in this roll extrusion annular groove; This C type is only taken out ring and is tight against outer tube jointly with the rubber body or removes on the wall of each interior tube body of another interior tube body of epimerite; The stopping leak body is inserted interior tube body, be provided with base in stopping leak body bottom, up be provided with bulge loop in regular turn, compel to close pipe and inclined tube, be provided with annular short slot between base and bulge loop, be extended with interior endless tube in the middle of this base, the endless tube top is provided with the back taper hole in this, form the backflow air chamber at interior endless tube and from compeling to close between the tube wall that pipe is extended to inclined tube, the roll extrusion annular groove is urgent in from compeling to close on the face that pipe is extended to inclined tube; Have the shape of falling disc rubber body at stopping leak body base, in the middle of the rubber body, have a trepanning; Each saves and is provided with the joint conjugant between the outer tube body, is provided with the packing button outside this conjugant, and interior is the convex annular groove, below this joint conjugant, be provided with urgent cyclization, the C type is only taken out ring and is sticked on the interior tube body, is closely against urgent cyclization again, compels cyclization and is butted on convex ring groove convex section by the bulge loop on it.

The utlity model has remarkable result and advantage;

1, the gas in the flexible tube head interior tube body of the utility model lamp bracket landing can be discharged to outer tube body from the back taper hole of stopping leak body, air produces the quick decline that backflow phenomenon can be contained another interior tube body on the interior tube body in the backflow air chamber, backflow phenomenon can be discharged the part interior tube body concurrent air-out streaming voice again simultaneously;

2, each interior tube body of the present utility model is all independent air chamber, and the stopping leak body in each interior tube body all has the back taper hole, produces common air chamber to each other, constitutes telescopic lifting structure from level to level;

3, the utility model has the effect of leak-stopping, and the two-layer gas side leakage that prevents is arranged aspect leak-stopping, and wherein, one stops most of air for the stopping leak physical efficiency; The 2nd, urgent in from compeling to close on the face that pipe is extended to inclined tube by the roll extrusion annular groove, thereby gas can only go out from the back taper orifice flow, and the roll extrusion annular groove is provided with packing ring (not drawing among the figure) and is tight against body jointly with the rubber body, can prevent because weight power makes incorrect operation downslide due to the channelling on the air, thereby have the leak-stopping function.

4, the utility model also has and only takes out function, wherein, utilizes packing button internal lock, and envoy's conjugant and urgent cyclization form powerful locking simultaneously, and envoy's conjugant and outer tube body, urgent cyclization, interior tube body clamp mutually, therefore, can't pull, reach fixing function; And the C type is only taken out and is encircled the roll extrusion annular groove that is sticked on the interior tube body, props up urgent cyclization again, and therefore, body can't all be pulled out the joint conjugant, reaches excellence and only takes out function.

Below in conjunction with accompanying drawing the utility model is elaborated as embodiment;

Accompanying drawing 1 is a stereo appearance figure of the present utility model;

Accompanying drawing 2 is plan cross-section schematic diagrames of the present utility model;

Accompanying drawing 3 is A facial planes cutaway view Amplified images of accompanying drawing 2 of the present utility model;

Accompanying drawing 4 is joint adapter ring cut-away views of the present utility model;

Accompanying drawing 5 is that lamp bracket of the present utility model is implemented illustration;

The corresponding relation of each parts of the utility model and its label is as follows;

Outer tube body 1; Bottom plug body 11; Pore 12;

Interior tube body 2; Roll extrusion annular groove 21; Shrinkage pool 22;

The C type is only taken out ring 23; Stopping leak body 3; Base 31;

Bulge loop 33; Compel to close pipe 34; Inclined tube 35;

Annular shape short slot 32; Interior endless tube 36; Reverse taper 37;

Backflow air chamber 38; Rubber body 4; Trepanning 41;

Joint conjugant 5; Packing button 51; Convex annular groove 52;

Compel cyclization 53 bulge loops 531; Epimerite interior tube body 2A;

The flexible tube head of this lamp bracket landing is exclusively used in for large-scale light fixture and sets up illumination usefulness, on lamp bracket, has more piece, size is dwindled one by one, the wideest outer tube body 1 of each joint can be taken in each joint interior tube body 2 corresponding with it one by one, the flexible tube head of this lamp bracket landing that said its size and interior tube body 2 adapt is in each interior tube body 2 end, and its size is corresponding with caliber in the different layers; The flexible tube head (seeing accompanying drawing 1) of said lamp bracket landing includes outer tube body 1, interior tube body 2, stopping leak body 3, rubber body 4 and joint conjugant 5; Lowermost end at outer tube body is provided with bottom plug body 11, is provided with pore 12 in the middle of this bottom plug body 11; On interior tube body 2, be provided with roll extrusion annular groove 21, on this roll extrusion annular groove, be equipped with and make the shrinkage pool 22 of letting out the body location, insert the C type and only take out ring 23 in roll extrusion annular groove 21, this C type is only taken out ring 23 and is tight against jointly on the wall of outer tube 1 or each interior tube body 2 except that another interior tube body 2A of epimerite with rubber body 4; Stopping leak body 3 is inserted interior tube body 2, be provided with base 31 in stopping leak body 3 bottoms, up be provided with bulge loop 33 in regular turn, compel to close pipe 34 and inclined tube 35, be provided with annular shape short slot 32 at base 31 and 33 of bulge loops, endless tube 36 in the middle of this base 31, being extended with, the endless tube top is provided with back taper hole 37 in this, be extended between the tube wall of inclined tube 35 and form backflow air chamber 38 at interior endless tube 36 and from compeling to close pipe 34, roll extrusion annular groove 21 is urgent in being extended on the face of inclined tube 35 from compeling to close pipe 34; Have the rubber body 4 of the shape of falling the disc at stopping leak body 3 bases, in the middle of rubber body 4, have a trepanning 41; Each saves and is provided with joint conjugant 5 between the outer tube body 1, is provided with packing button 51 outside this joint conjugant 5; Interior is convex annular groove 52, below this joint conjugant 5, be provided with and compel cyclization 53, the C type is only taken out ring 23 and is sticked on the interior tube body 2, be closely against again and compel cyclization 53, compel cyclization 53 and can be butted on convex annular groove 52 convex sections by the bulge loop on it 531, when its interior tube body is inserted joint conjugant 5 for 2 times and exceeded, the C type only can be taken out ring 23 and be enclosed within on the roll extrusion annular groove 21.

Accompanying drawing 2 illustrates the section plan of the overall structure embodiment after the utility model assembly is closed, from this figure as seen;

At first interior tube body 2 outer surfaces are rolled into roll extrusion annular groove 21 with machine, make interior tube body 2 again from being inserted in stopping leak body 3(simultaneously referring to accompanying drawing 4), make interior tube body 2 urgent in being extended on the face of inclined tube 35 from compeling to close pipe 34, force to make its distortion airtight; Extrude a shrinkage pool 22 again, make stopping leak body 3 location and can't deviate from, trepanning with rubber body 4 is inserted in the short slot 32 of stopping leak body 3 again, and will compel cyclization 53 inserts in the joint conjugant 5, make interior tube body 2 pass joint conjugant 5 and make and exceed, the C type only can be taken out ring 23 and be placed on the roll extrusion annular groove 21, and outer tube body 1 is inserted between joint conjugant 5 and the urgent cyclization 53, at joint conjugant 5 outer locking packing buttons 51, make flexible link reach closely stable combination; Other respectively saves interior tube body 2 all with the same manner assembling, and bottom plug body 11 is inserted in outer tube body 1 bottom, can finish the assembling of the flexible tube head of this lamp bracket landing.

When use has the light fixture of the flexible tube head of this lamp bracket landing (seeing shown in the accompanying drawing 5), when adjusting height, decontrol knob earlier, because of the weight of light fixture can make interior tube body 2 land downwards, its gas can be discharged from the back taper hole 37 under the stopping leak body 3 to outer tube body 1, but because the hole in back taper hole 37 is slightly little, air can't be discharged immediately, therefore, air produces backflow phenomenon at backflow air chamber 38, this backflow phenomenon can be held back the rapid decline of another interior tube body 2A on the resistance interior tube body 2, the backflow of air can be discharged part interior tube body 2 again, and send sound of the wind, therefore, each interior tube body 2 all is an independent air chamber, and each interior tube body 2 has back taper hole 37 3 ones of stopping leak bodies, therefore, produce common air chamber to each other, the air-tightness height of interior tube body 2, high former of its air-tightness because two-layerly prevent the gas side leakage, first stopping leak body 3 stops most air, it two is urgent in being extended on the face of inclined tube 35 from compeling sleeve pipe 34 by roll extrusion annular groove 21, thereby the only past back taper hole 37 of gas is flowed out, on roll extrusion annular groove 21, be equipped with the C type again and only take out ring 23,21 it and rubber bodies 4 push against jointly on the wall of outer tube body 1 or each interior tube body 2 except that top layer interior tube body 2A, thereby can prevent, thereby reach the function of stopping leak owing to weight makes the up downslide of incorrect operation due to the channelling of air.The function of only taking out in addition in addition, (as shown in Figure 4), when packing button 51 internal locks,, envoy's conjugant 5 forms powerful tight lock with urgent loopful 53, simultaneously, the C type is only taken out ring 23 and is sticked on the interior tube body roll extrusion annular groove 21, and roll extrusion annular groove 21 props up urgent cyclization 53, therefore, interior tube body 2 can't all be pulled out from joint conjugant 5, therefore has and only takes out and fixed function.

Above only is the preferable feasible embodiment of the utility model not; they do not limit the utility model claim protection domain; therefore, the equivalent structure done of every utilization the utility model specification and graphic content changes and all should be contained in the utility model claim protection domain.

Claims (1)

1, the flexible tube head of a kind of lamp bracket landing, the flexible tube head of this lamp bracket landing has more piece on lamp bracket, size is dwindled one by one, the wideest outer tube body of each joint can be taken in each joint interior tube body corresponding with it one by one, the flexible tube head of lamp bracket landing that said its size and interior tube body adapt is in each interior tube body end, its size is corresponding with the interior tube body footpath of different joints, it is characterized in that; The flexible tube head of said lamp bracket landing comprises outer tube body, interior tube body, stopping leak body, rubber body and joint conjugant; Least significant end at outer tube body is provided with the bottom plug body, is provided with pore in the middle of this bottom plug body; On interior tube body, be provided with the roll extrusion annular groove, on this roll extrusion annular groove, be equipped with the shrinkage pool that makes the stopping leak location, in this roll extrusion annular groove, put the C type and only take out ring; This C type is only taken out ring and is tight against outer tube jointly with the rubber body or removes on the wall of each interior tube body of another interior tube body of epimerite; The stopping leak body is inserted interior tube body, be provided with base in stopping leak body bottom, up be provided with bulge loop in regular turn, compel to close pipe and inclined tube, be provided with annular short slot between base and bulge loop, be extended with interior endless tube in the middle of this base, the endless tube top is provided with the back taper hole in this, form the backflow air chamber at interior endless tube and from compeling to close between the tube wall that pipe is extended to inclined tube, the roll extrusion annular groove is urgent in from compeling to close on the face that pipe is extended to inclined tube; Have the shape of falling disc rubber body at stopping leak body base, in the middle of the rubber body, have a trepanning; Each saves and is provided with the joint conjugant between the outer tube body, is provided with the packing button outside this conjugant, and interior is the convex annular groove, below this joint conjugant, be provided with urgent cyclization, the C type is only taken out ring and is sticked on the interior tube body, is closely against urgent cyclization again, compels cyclization and is butted on convex ring groove convex section by the bulge loop on it.

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