CN103126481A - Groined support and intersecting rod fixing device thereof - Google Patents

Abstract

The invention discloses a groined support and an intersecting rod fixing device of the groined support. The groined support and the intersecting rod fixing device of the groined support are mainly used for airing clothes and hanging clothes for families and hanging clothes for business. The groined support and the intersecting rod fixing device of the groined support are characterized in that the cross section of each longitudinal rod is rectangular, two ends of a main cross rod (6) and two ends of an auxiliary cross rod (10) and an upper bottom rod (2) and a lower bottom rod (2) respectively penetrate corresponding holes of longitudinal rods (5), each plastic base (1) is sleeved on each end head of each bottom rod (2), and therefore the groined support is formed. Intersecting connection between two rods means that intersecting rod fixing device (16) is used for achieving connection between metal rods. The intersecting connection between the two rods has a connection effect of entity rods. A structure of double cross rods and double bottom rods is applied. The structure of the double cross rods and the double bottom rods means that the strength is multiplied at each right-angle portion and effectively avoids a failure caused by break of existing pure plastic connecting parts. A two-face through hole structure is applied to each longitudinal rod (5) and enables each longitudinal rod to slide on cross rods arbitrarily. The amount of the longitudinal rods can be increased, so that load is increased and the length of the cross rod can be improved. Therefore, the groined support is convenient to disassemble, carry, store and move.

Description

Groined type support and crossbar fixture thereof

Technical field

The present invention is a kind of extension clothing support and cross-coupled fixture of two bar of extension the thing support, particularly a kind of groined type that can independently stand on the ground.

Background technology

Independent extension thing support of standing on the ground, be mainly used in family dry in the air clothing, hang clothing, clothes retailer and early sell clothes and shop and hang clothes and use in the night market, its functional requirement be can conveniently disassemble, carry, deposit, mobile.Existing support is generally the support that is " square shape " shape.

The support of " square shape " shape mainly is connected by cross bar, sheer pole, vertical pole and bottom bar and forms, it is all the pipe that adopts identical thickness due to the cross bar of existing technology and vertical pole and bottom bar, therefore directly interconnection mutually, must could realize by the cooperation of the 3rd connector interconnecting.

Support is independently stood and supported main stressed place is place, two right angles in the above.The effect that adds below cross bar is to guarantee in order to strengthen top two right angles stability and the fastness that it is stood, and therefore forms the square shape support.But below having added, this root cross bar has reduced the height (hanging clothing is an obstacle) of support relatively; Can affect the space that mops floor with mop again in indoor use, secondly this cross bar does not have other function except reinforcing; Cross bar all has defective technically or in appearance with leaning on the 3rd working of plastics connection being connected of vertical pole in addition.

The vertical pole of square shape support need to be strengthened place, right angle intensity with being connected of bottom bar, because clothes hanger needs outward appearance preferably at indoor and other occasion ornaments, therefore can not allow direct, excessive the showing of reinforcement, welding can affect again folding or dismounting.Existing common practices is, " two the is logical " adapter of plastic that adopts plastics three links:link of trade，travel and post formula or turning formula is connected together cross bar and vertical pole are interspersed.Some support simply replaces bottom bar with an integral plastics base; but be the intensity that plastic feet or three links:link of trade，travel and post all need to thicken or improve material; but no matter how the intensity of reinforced plastics still can't be compared with the intensity of metal connecting piece; so frequent meeting fracture, poor reliability.If use the third metalwork that its each bar is connected the restriction that is subjected to again outward appearance, cost, structure, weight.

The width of square shape support is fixed, and can not adjust; What the length of cross bar was fixing can not adjust as required.

Summary of the invention

The present invention is to provide a kind of simple in structure, outward appearance good, lightweight, cost is low, place, right angle interconnection technique adjusts reliably, arbitrarily cross bar length, multi-support, groined type support easy to use; Provide a kind of bar and bar (pipe) cross-coupled fixture.

The technical scheme that the present invention solves is, the cross section of vertical pole is rectangular, establish time cross bar hole and main cross bar hole on two corresponding surfaces of upper end, between two holes, at a distance of corresponding distance, main cross bar and time cross bar two ends penetrate formation groined type support after inferior cross bar hole on vertical pole and main cross bar hole; The fixture of establishing in the pipe (bar) of two pipe infalls, this device is comprised of hole seat, contraction mouth, holding screw, the profile of crossbar fixture matches with the inner wall shape of vertical pole, and the screw hole that holding screw passes on the corresponding Kong Yukong seat of vertical pole is connected.

The cross section is that the vertical pole lower end of rectangle is that hole on the rectangle bottom bar is connected by hinge and hook and cross section.

Another kind of embodiment, the cross section is to establish bottom bar hole and lower bottom bar hole on two corresponding surfaces of bottom of rectangle vertical pole, between two holes at a distance of corresponding distance, the cross section is that circular upper bottom bar and lower bottom bar intert respectively in bottom bar hole and lower bottom bar hole, and on plastic seat, be inserted in respectively on two terminations of bottom bar and lower bottom bar in two set holes.

Vertical pole is comprised of upper vertical bar and lower vertical bar, and upper vertical bar is connected with lower vertical bar by plastic sheath, establishes several adjusting holes on upper vertical bar, and plastic sheath and lower vertical bar are established pin-and-hole.Another kind of embodiment is that upper vertical bar and lower vertical bar are one.Establish respectively the cross pipe fixture in the inner tube at the inferior cross bar hole of vertical pole and main cross bar hole and upper bottom bar hole and place, lower bottom bar hole.

Establish slideway on two end caps of main cross bar and time cross bar, slide bar can extend and conceal by pull in slideway.

The invention has the beneficial effects as follows: be that pipe interts the rectangle square tube and carries out the connection function that is connected and just can reaches firm between self metalwork and metalwork at the place, right angle; Adopt two bar structures to increase the intensity that right angle quantity is strengthened the position, right angle, can deduct the cross bar of establishing in the bottom, the groined type support of complete space is arranged on realizing at the bottom of frame; Utilize rectangle square tube (bar) and pipe (bar) to intert the syndeton that is connected, solved the difficult problem that two bars of traditional identical thickness and identical circle can't directly be connected; Be that the structural reliability that is connected with metal of metal is high between two bars, avoid the fault of plastic fastening fracture to occur, saved the 3rd connector, simple in structure, do not increase cost; Cross bar adopts the structure of primary and secondary two bars, the one, only have original top the structure at two right angles to become four right-angle structures, the support stability of groined type is strengthened up greatly, can be relieved remove cross bar under tradition, relatively increased the height of support; The 2nd, the relative diameter that can reduce cross bar particularly can reduce the diameter of time cross bar, because when main cross bar load-bearing, the supporting role of inferior cross bar can not be bent downwardly main cross bar, and therefore increasing a bar is not to lean on the multiple increase of material to realize; The 3rd, can establish slidably Self-locking hanging hook and hang thing on inferior cross bar, increased again a kind of new function; Structure at two bottom bars of vertical pole bottom connection can become four triangles by two original triangles, has strengthened the stable reliability of bottom bar, has also increased in addition the effect of outward appearance; Two bottom bars are provided with corresponding distance and with the structure that two plastic seats link up in the two rod end points parallel connections bottom bar diameter of several times that has been equivalent on this stress surface overstriking, and the actual diameter that reduces bottom bar, keep two bars to remain on original level in total materials amount.

Vertical pole is divided into upper vertical bar and lower vertical bar has not only increased the function of adjusting height, and the prior lower vertical bar that can make can be established relatively slightly, and upper vertical bar is established more carefully, and the reinforcement that is conducive to base does not affect again the connection of two cross bars.

What establish on the vertical pole of groined type support is that main cross bar hole and time cross bar hole are through holes, and vertical pole can slide arbitrarily on two cross bars.Therefore can adjust according to the actual needs the position of vertical pole: the inside contraction of two bars can be reduced floor space; Two bars are outwards moved to edge increase cross bar length come the large clothing of airing coverlet; Can also add again in the centre vertical pole or more than one vertical pole, realize that multi-support satisfies the needs of load-bearing needs or lengthening overall width (being equivalent to one and half or two, three supports that combine).

The structure of establishing slideway on two port cap of main cross bar and time cross bar, utilized fully the space in two cross bars (hollow pipe), long slide bar can be collected in this space, is equivalent to increase cross bar length, the used time can not shrink again, and this function is very important to such support.The effect of connecting rod is, when slide bar inserts in the slideway of port cap fully, is again one main cross bar and time two unsettled external parts of cross bar are coupled together, and played the effect of drawing main cross bar or the effect of supporting time cross bar of hanging.

Adopt the flexible structure of the thin pull of thin, the inferior cross bar one thick of main cross bar one thick, can increase cross bar length.Such support effect is, the used time is not a little hat rack of occupation of land at ordinary times, two expansion links are concealed in each thick bar inner tube, if using the clothing that dries in the air (only to establish one with long thin bar) at any time from both ends or one end extracts out, increase a vertical pole (only establishing in the situation of a thin bar) and support, increase the required carrying quantity of carrying clothing.

The profile of crossbar fixture matches with the inner wall shape of vertical pole and makes vertical pole become the entity bar in interconnection place, establish contraction mouth and holding screw on the crossbar fixture, realized the seamless connectivity effect of two crossbars, increased the reliability that be connected and the robustness of metal tube with metal tube, actual effect is that two crossbars realize that metal is connected with the entity of metal, and to show in appearance be that two no-welding-spots that intersect Metallic rod connect.

Establish the crossbar fixture in rectangular tube, can utilize the characteristics of spring function that plastics have and antiwear characteristic to guarantee that two cross one another bars (pipe) the closely cooperating of fastening rear non-loosening, have guaranteed again can make between two pipes simultaneously and freely interted when unclamping.This is also the requisite measure that realizes groined type supporting structure and function.

Description of drawings

The present invention is further illustrated below in conjunction with drawings and Examples.

Accompanying drawing 1 is the schematic diagram of structure of the present invention;

Accompanying drawing 2 is structural representations of crossbar fixture;

Accompanying drawing 3 is structural representations of plastic sheath;

Accompanying drawing 4 is bar structure schematic diagrames of establishing intermediate bar;

Accompanying drawing 5 is structural representations of a plurality of vertical pole supportings and the cross bar that stretches;

Accompanying drawing 6 is structural representations of flexible cross bar in two vertical poles.

In figure, 1, plastic seat, 2, bottom bar, 3, hinge, 4, hook, 5, vertical pole, 6, main cross bar, 7, main cross bar hole, 8, inferior cross bar hole, 9, Self-locking hanging hook, 10, inferior cross bar, 11, plastic sheath, 13, pin, 16, crossbar fixture, 17, trepanning, 18, contraction mouth, 19, screw hole, 20, holding screw, 21, pin-and-hole, 22, the round plastic cover, 23, intermediate bar, 24, plastic end, 25, slideway, 26, port cap, 27, slide bar, 28, connecting rod.

Specific embodiment

With reference to accompanying drawing 1, vertical pole [5] is rectangular tube, and its cross section is rectangular, establishes time cross bar hole [8] and main cross bar hole [7] on two corresponding surfaces of upper end, and between two holes, at a distance of corresponding distance, more the big bear effect is better for this distance.Main cross bar [6] and time cross bar [10] can be the bars with diameter, can be also that main cross bar [6] diameter is large, and inferior cross bar [10] diameter is little.Main cross bar [6] and time cross bar [10] two ends penetrate respectively formation groined type support after twice cross bar hole [8] and main cross bar hole [7].

Establish several Self-locking hanging hooks [9] on inferior cross bar [10], increased the function of hanging thing, also can establish Self-locking hanging hook [9] and establish self-marketing hook [9] on two external parts of main cross bar [6] on main cross bar [6].

Establish port cap [26] on the termination of main cross bar [6] and time cross bar [10], establishing slideway [25] on port cap (is one to have the hole of corresponding length, the character and the function that are equivalent to plastic sheath [11] and round plastic cover [22]), with two slide bars in two up and down [27] that a steel wire is converted into, connecting rod [28] links together two slide bars [27].Upper drop shot [27] inserts in two skidway holes in up and down [25], and insertion portion is concealed in the inner tube of main cross bar [6] and time cross bar [10].Formation can pull the rack of slip.Rack is extracted corresponding length out, can carry lighter clothing; Main cross bar [6] and time cross bar [10] are linked together, and restriction, be also the device of an anti-collision and decoration in addition mutually.

The embodiment that bottom bar is connected with vertical pole is a kind of is: vertical pole [5] by hinge [3] and two or four hook [4] with bottom bar [1] connection at standing state.Be that two hooks [4] of the upper band of vertical pole [5] are hung respectively when in bottom bar [2] two holes, bottom bar [2] and the rectangular shape of vertical pole [5]; When two the hook [4] take off, bottom bar [2] can fold and vertical pole [5] parastate, take off two the hook [4] can leave in the hole of vertical pole [5].In order to increase the intensity at two right angles, can also establish again two hooks [4] and hanging hole at another side, this situation is equivalent to hang in bottom bar [2] hole by four hooks.

Cross bar hole [8] and main cross bar hole [7] on groined type rack vertical rod [5] are the structures of through hole, and vertical pole [5] can upward be slided at main cross bar [6] and time cross bar [10] arbitrarily, and this meaning is embodied in each function.

Vertical pole [5] is the rectangle square tube, establishes main cross bar hole [7] and time cross bar hole [8] on two corresponding surfaces, and main cross bar [6] and time cross bar [10] intert respectively becomes owner of in cross bar hole [7] and time cross bar hole [8].

Vertical pole [5] can be comprised of two vertical poles, this embodiment is that the groined type rack vertical rod [5] with level altitude can be set as two parts, namely divide upper vertical bar [5] and lower vertical bar [5], lower vertical bar [5] upper section is long-pending greater than upper vertical bar [5], therefore after upper vertical bar [5] is adjusted sectional area by plastic sheath [11], insert in lower vertical bar [5], establish several adjusting holes [12] on upper vertical bar [5], need to insert pin [13] after height and locate by adjusting to.

Because the length of upper bottom bar [2] and lower bottom bar [2] is shorter, be again to have adopted two bars to do supporting, therefore can adopt relatively thin pipe also not affect its bearing capacity.Establish bottom bar hole and lower bottom bar hole on another two corresponding surfaces of lower vertical bar [5] lower end (residing two corresponding surfaces of cross bar hole that refer to these two corresponding surfaces and upper vertical bar [5] upper end differ 90 degree).Upper bottom bar [2] and lower bottom bar [2] intert respectively in bottom bar hole and lower bottom bar hole, be inserted in respectively on two terminations of bottom bar [2] and lower bottom bar [2] in the upper two set holes of plastic seat [1], when plastic seat [1] when landing, the reaction force acts on ground is on upper bottom bar [2] and lower bottom bar [2], and namely both sides lower vertical bar [5] is by eight right angle effects of upper bottom bar [2] and lower bottom bar [2] and stable standing.

Produce " eight " font that when being bent downwardly, the support of groined type become when main cross bar [6] is hung thing, at this moment time cross bar [10] effect of having played supporting does not allow its distortion; When " eight " word was out of shape in the groined type support is subjected to the External Force Acting generation, inferior cross bar [10] played again the pulling force effect, limits its distortion.Therefore establish between primary and secondary cross bar [6], [10] and its and establish corresponding distance, can be with the reduced of inferior cross bar [10] and main cross bar [6], be not that at double increase material cost exchanges in the situation of namely gaining in strength.Can establish the Self-locking hanging hook [9] that can slide and adjust the position on inferior cross bar [10], be used for hanging the needs of thing.Because setting up of this cross bar [10] is also to have increased a function.

The another kind of embodiment of slide bar [27] establishes the pipe bar, and is a kind of thinner than main cross bar [6] and time cross bar [10] in other words conj.or perhaps, can enter the little primary and secondary cross bar in main cross bar [6] and time cross bar [10] pipe.Slide bar [27] front end of pipe rod-type is established port cap [26] again, and plastic end [24] (with reference to accompanying drawing 4) is established in the rear end, and pipe bar slide bar [27] insertion portion is concealed in the inner tube of main cross bar [6] and time cross bar [10].This slide bar [27] can be connected by connecting rod [28], also can only set up separately slide bar [27], can also only establish a slide bar [27].The length that slide bar [27] is equivalent to increase rack cross-bar is extracted at two ends at main cross bar [6] or inferior cross bar [10] out, has increased the quantity of carrying clothing.

With reference to accompanying drawing 2, the crossbar fixture [16] of establishing respectively injection molding in the interior bar (pipe) in main cross bar hole [7] and time cross bar hole [8] and upper bottom bar hole and lower bottom bar hole, crossbar fixture [16] is embedded in the rectangle square tube, utilize profile to match with the inner tube arm of bar, make itself and bar become one, namely the vicinity, hole of vertical pole [5] becomes local entity bar.Trepanning [17] and bar respective aperture (hole of the present invention is: main cross bar hole [7] and time cross bar hole [8] and upper bottom bar hole and lower bottom bar hole) overlap, fixed screw [20] penetrates screw hole [19] from the outer face of rectangular shaft, fixed screw [20] screws in the metal nut of inlaying in screw hole [19], by screwing screw, contraction mouth [18] is shunk, the round bar (pipe) that trepanning [17] can handle tightly penetrates is fastening, therefore this structure can be inserted smoothly round bar (pipe) and can tightly fix, and is for convenience detach fastening with installation.This crossbar fixture [16] can be applied in the syndeton that similar two pipes intersect and use.

With reference to accompanying drawing 3, plastic sheath [11] is the upper vertical bar [5] and the slip of lower vertical bar [5] and the device of location that connects two different thicknesses.Insert by cooperation in the bar of lower vertical bar [5], its overcoat is inserted in outside the bar of lower vertical bar [5].Twitch upper vertical bar [5] and slide up and down when needs adjustment height, establish the adjusting hole [12] that several adjust the position on upper vertical bar [5]; Establish the pin-and-hole [21] that coincides on plastic sheath [11] and lower vertical bar [5], pin [13] penetrates two Kong Zhonghou of plastic sheath [11] and lower vertical bar [5] (also will pass through the adjusting hole [12] of upper vertical bar [5] during use), and the other end rests in plastic sheath [6] and do not expose.Can be inlaid in concave station in plastic sheath [11] and the rear end of pin [21] is plastic cap, keep outward appearance preferably.Aforesaid plastic cap can be linked to be one with plastic sheath [11], prevents pin [13] loss.Establish plastic end [24] (seeing accompanying drawing 4) on the lower end of vertical pole [5], its straight line on a normal track is slided up and down.

With reference to accompanying drawing 4, main cross bar [6] is comprised of three bars with every bar of time cross bar [10].For example formed by two bar and intermediate bars [23] that are enclosed within these two bars that insert in vertical pole [5].The diameter of intermediate bar [23] greater than insertion rod, is to be inserted in insertion rod by circle plastic sheath [22] to be connected, and for the requirement of energy load-bearing after the connection that increases by two kinds of different-diameter bars, establishes plastic end [24] on the termination of the insertion rod that is inserted into intermediate bar [23]; If the structure of plastic end [24] also can be applied on the lower end of upper vertical bar [5] (see above and state); If the structure of plastic end [24] also can be applied on the termination of slide bar [27] (see above and state).Guarantee on the termination that namely insertion rod and the internal diameter of intermediate bar [23] keep mutual bearing state, the reliability of assurance load-bearing (other answer use principle identical).The one side overstriking of this embodiment the diameter of main cross bar [6] and the diameter, particularly cross bar of time cross bar [10] can equate with the rectangular surfaces width of the vertical pole that is inserted into; Make on the other hand main cross bar [6] and time cross bar [10] adjust at any time according to actual needs length, make the function of the horizontal adjustment of support in two vertical poles of groined type, applicable user's difference needs.

With reference to accompanying drawing 1, accompanying drawing 5, regulating main cross bar [6] increases vertical pole [5] (comprising other annexes such as bottom bar [2]) with the length of time cross bar [10] and the embodiment of its weight capacity of increase, and for example main cross bar [6] interts on three vertical poles [5] with time cross bar [10].The structure of the multi-point support of this twin-well word or many wells word can satisfy the needs of different user, is also the beneficial effect that this interspersed structure of the present invention can realize.Vertical pole [5] is a kind of standard component, just can at will make up as long as increase the length of main cross bar [6] and time cross bar [10].

Can also be as the support (being connected in parallel) of two slide bars (pipe bar) [27] of extraction the slideway [25] on the port cap [26] of main cross bar [6] and time cross bar [10] with reference to accompanying drawing 5, vertical pole [5].Embodiment is: only deposit two slide bars [27] with its equal length in main cross bar [6] and time cross bar [10], when extracting two slide bars [27] out, be equivalent to increase the support of nearly, two termination is inserted in (matching with the diameter of two slide bars [27]) supporting with a vertical pole [5], just can have formed nearly two supports.When removing vertical pole [5], two slide bars [27] are retracted in the pipe of main cross bar [6] and time cross bar [10] and are covered up, become a hat rack that floor space is little.

If add again standby two slide bars [27] at another side, then add a vertical pole [5] supporting is inserted in two termination, just can form nearly three supports.

With reference to accompanying drawing 6, main cross bar [6] is all by one thick one thin (the thin slide bar that is equivalent to [27] with the every bar that time cross bar [10] is, therefore illustrate that here drop shot [27] is equivalent to thin main cross bar [6], slide bar [27] is equivalent on thin time cross bar [10]) form, be can slide (structure is seen accompanying drawing 4 and above-mentioned) in thin bar insertion thick bar, insertion portion is concealed in the inner tube of main cross bar [6] and time cross bar [10] thick bar.Each is different for main cross bar hole [7] on two vertical poles [5] and time cross bar hole [8], is also to be matched by one thick one thin Kong Yuqi.This is a kind of embodiment that adjusts cross bar within two vertical poles [5].Can be adjusted into two ends and expose respectively corresponding length, quarter (in two both sides one); Length is revealed at two ends less, and is middle long, interior full cross bar length; Narrow down to minimum length, floor space is few, does not reveal the length of slide bar [27].

The comprehensive conclusion:

A kind of groined type support, mainly be connected by vertical pole [5], main cross bar [6] and bottom bar [2] and form, it is characterized in that, the cross section of vertical pole [5] is rectangular, establish time cross bar hole [8] and main cross bar hole [7] on two corresponding surfaces of upper end, between two holes, at a distance of corresponding distance, main cross bar [6] and time cross bar [10] penetrate respectively main cross bar hole [7] and the rear groined type support that forms of time cross bar hole [8] at least two vertical poles [5].

Establish slideway [25] on the port cap [26] of main cross bar [6] and time cross bar [10], slide bar [27] interts and is connected in slideway [25], and insertion portion is concealed in the inner tube of main cross bar [6] and time cross bar [10].

By connecting rod [28], two slide bars [27] are linked together up and down.

Slide bar [27] is independently to manage bar, and plastic end [24] is established in slide bar [27] insertion end termination.

Vertical pole [5] is connected by the hole of establishing on hinge [3] and two or four hook [4] and bottom bar [2].

Establish upper bottom bar hole and lower bottom bar hole on another two corresponding surfaces of vertical pole [5] bottom, between two holes at a distance of corresponding distance, upper bottom bar [2] and lower bottom bar [2] intert respectively in bottom bar hole and lower bottom bar hole, and be inserted in respectively on the termination, two ends of bottom bar [2] and lower bottom bar [2] in plastic seat [1] upper two set holes.

Establish respectively fixture [16] in the inner tube at bottom bar hole, place, lower bottom bar hole on inferior cross bar hole [8] on vertical pole [5], main cross bar hole [7], fixture [16] profile matches with vertical pole [5] inner wall shape.

A kind of fixture of crossbar, formed by hole seat [17], contraction mouth [18], holding screw [20], it is characterized in that, the profile of crossbar fixture [16] matches with the inner wall shape of vertical pole [5], and the screw hole [19] that holding screw [20] passes on the corresponding Kong Yukong seat [17] of vertical pole [5] is connected.

Claims (8)

1. groined type support, mainly be connected by vertical pole [5], main cross bar [6] and bottom bar [2] and form, it is characterized in that, the cross section of vertical pole [5] is rectangular, establish time cross bar hole [8] and main cross bar hole [7] on two corresponding surfaces of upper end, between two holes, at a distance of corresponding distance, main cross bar [6] and time cross bar [10] penetrate respectively main cross bar hole [7] and the rear groined type support that forms of time cross bar hole [8] at least two vertical poles [5].

2. groined type support described according to right 1, is characterized in that, establishes slideway [25] on the port cap [26] of main cross bar [6] and time cross bar [10], and slide bar [27] interts and is connected in slideway [25], and insertion portion is concealed in the inner tube of main cross bar [6] and time cross bar [10].

3. groined type support described according to right 2, is characterized in that, by connecting rod [28], two slide bars [27] linked together up and down.

4. groined type support described according to right 2, is characterized in that, slide bar [27] is independently to manage bar, and plastic end [24] is established in slide bar [27] insertion end termination.

5. groined type support described according to right 1, is characterized in that, vertical pole [5] is connected by the hole of establishing on hinge [3] and two or four hook [4] and bottom bar [2].

6. groined type support described according to right 1, it is characterized in that, establish upper bottom bar hole and lower bottom bar hole on another two corresponding surfaces of vertical pole [5] bottom, between two holes at a distance of corresponding distance, upper bottom bar [2] and lower bottom bar [2] intert respectively in bottom bar hole and lower bottom bar hole, and be inserted in respectively on the termination, two ends of bottom bar [2] and lower bottom bar [2] in plastic seat [1] upper two set holes.

7. according to right 1,2,5,6 described groined type supports, it is characterized in that, establish respectively fixture [16] in the inner tube at bottom bar hole, place, lower bottom bar hole on inferior cross bar hole [8] on vertical pole [5], main cross bar hole [7], fixture [16] profile matches with vertical pole [5] inner wall shape.

8. the fixture of a crossbar, formed by hole seat [17], contraction mouth [18], holding screw [20], it is characterized in that, the profile of crossbar fixture [16] matches with the inner wall shape of vertical pole [5], and the screw hole [19] that holding screw [20] passes on the corresponding Kong Yukong seat [17] of vertical pole [5] is connected.

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