CN106924948A - A kind of foldable frame - Google Patents

Abstract

The present invention relates to a kind of foldable frame, it includes the multiple connecting rods being hinged and connected, two connected connecting rods are inserted into the angled connection of pin by one, one of connection boom end stretches out a tenon, the end of another connecting rod has the tongue-and-groove that pin and the tenon are inserted into described in collecting, the tenon have one by connecting rod it is axially extending carve groove, it is described be inserted into pin bottom surface be convexly equipped with an insertion be contained in it is described carve in groove carve bar, the both sides for being inserted into pin have protruded out a pair of lugs, two side wall correspondences of the tongue-and-groove are offered for housing this pair of groove of lug.Above-mentioned foldable frame by tongue-and-groove and the combination of tenon, connected connecting rod is closely connected, and reinforced by being inserted into pin, the stability of framework can be improved, it is safe, and such structure cause to fold and assemble change it is more easy and quick.

Description

A kind of foldable frame

Technical field

The invention belongs to framework technology field, more particularly to a kind of foldable frame.

Background technology

Now, the important component for daily life is moved into, and various sports ratio Match is even more the life for giving people and brings enjoyment.In many sports events, for example football, hockey, Tennis etc., can all use rack.Especially football, is required for a goal with net.

Carry for convenience, these goal frameworks generally use folding structure type, these foldings In structure, it will usually use chain connection.But when being hinged, framework easily pushed over or Easily fall frame or to topple over when being collided, it is more unstable, bring certain unsafe factor to user.

The content of the invention

(1) technical problem to be solved

The technical problem to be solved in the present invention is to provide and a kind of is easy to fold, be convenient for carrying and assemble Afterwards Stability Analysis of Structures safety foldable frame.

(2) technical scheme

In order to solve the above technical problems, after present invention offer one kind is easy to fold, be convenient for carrying and assemble The foldable frame of Stability Analysis of Structures safety, including：

A kind of foldable frame, it includes the multiple connecting rods being hinged and connected, two connected connecting rods The angled connection of pin is inserted into by one, one of connection boom end stretches out a tenon, another The end of individual connecting rod has the tongue-and-groove that pin and the tenon are inserted into described in collecting, and the tenon has one It is individual by connecting rod it is axially extending carve groove, it is described be inserted into pin bottom surface be convexly equipped with an insertion be contained in it is described Carve in groove and carve bar, the both sides for being inserted into pin have protruded out a pair of lugs, two side walls of the tongue-and-groove Correspondence is offered for housing this pair of groove of lug, and the lug extends parallel to the bar direction of carving, The axle that bar bearing of trend is carved parallel to the connecting rod, the lug development length is less than and carves bar institute In the lateral edges length half in face.

Wherein, the slot bottom width for carving groove more than notch width, the top surface for carving bar with it is described The bottom land contact of groove is carved, the top surface width for carving bar is stuck in more than the width for carving bar root so as to carve bar It is described to carve groove.

Wherein, it is characterised in that the groove of carving is served as reasons in the section on the direction of pitman shaft Bottom land to notch be in tapered shape, it is described carve bar in the section on the direction of pitman shaft It is in tapered shape by top to root.

Wherein, the connection boom end with tongue-and-groove is bending end, and the notch of the tongue-and-groove is opened in described The end face of bending end simultaneously extends through the side face relative with end face of connecting rod.

Wherein, the bottom land of the tongue-and-groove perpendicular to the connecting rod axle, the bearing of trend of the groove Parallel to bottom land.

Wherein, the articulated structure of connected connecting rod is installed on the inner side of the bending end, the tongue-and-groove Notch edge on the outside of bending end is arc so as to described in when connected connecting rod is folded and is opened What the lug for being inserted into pin was close to that arc-shaped side is not provided with lug along moving is partially housed in the tongue-and-groove In.

Wherein, the foldable frame is goal rack, connecting rod more long in the multiple connecting rod Foldable structure or stretching structure are provided with the middle.

Wherein, the lug is extended laterally out by positioned at the lowermost position for being inserted into pin side, described convex The bottom surface of ear is concordant with the bottom surface for being inserted into pin, and the lug is in the longitudinal direction by being inserted into the outward flange of pin Edge extends internally.

Wherein, described to carve bar identical with the length for carving groove, and the length for carving groove is equal on tenon axial direction Length, the development length for carving bar is the length being inserted on the whole bottom surface axial direction of pin.

(3) beneficial effect

Foldable frame of the present invention is tight by connected connecting rod by tongue-and-groove and the combination of tenon Connection, and reinforced by being inserted into pin, when before folding, being inserted into, pin first takes out or part is exited, tenon Insertion tongue-and-groove and with hinge rotate to right angle when, then pin will be inserted into be inserted into, will two bars firmly Connection.Due to being inserted into pin there is lug to be inserted into the groove of tenon groove sidewall, even if being subject to extraneous punching Hit, for example, force two connecting rod angles to become hours, be inserted into pin and its lug can block two bars will not Relatively rotated around hinge or relative tilt, improve the stability of framework, it is safe, and It is more easy and quick that such structure causes to fold and open change.

Accompanying drawing is said

Fig. 1 is the dimensional structure diagram of the foldable frame that the embodiment of the present invention one is provided；

Fig. 2 is the connecting rod junction partial enlargement structural representation in Fig. 1；

Fig. 3 is the partial enlargement structural decomposition diagram in Fig. 2；

Fig. 4 is the dimensional structure diagram of the foldable frame of the embodiment of the present invention two；

Fig. 5 is the stretching structure decomposing schematic representation of the connecting rod more long in Fig. 4.

Specific embodiment

Refering to Fig. 1, Fig. 2 and Fig. 3, show the foldable frame 10 of the embodiment of the present invention and its connect Connect place's partial structurtes.Foldable frame 10 includes the multiple connecting rods 11 being hinged and connected, connected two Individual connecting rod 11 is inserted into the angled connection of pin 15, the end of one of connecting rod 11 by one A tenon 12 is stretched out, the end of another connecting rod 11 is inserted into pin 15 and tenon with collecting 12 tongue-and-groove 13, tenon 12 have one by connecting rod it is axially extending carve groove 121, be inserted into pin 15 bottom surface 150 is convexly equipped with an insertion and is contained in carve in groove 121 carves bar 151, is inserted into pin 15 both sides have protruded out a pair of lugs 152, and two side wall correspondences of tongue-and-groove 13 are offered for housing This pair of groove of lug 152 132.

Foldable frame 10 can be the goal rack in the various ball game in sports, example Such as football pitch framework, or other suitable foldings, the framework that can be opened and used, such as tent Framework etc..By taking the framework of goal as an example, its structure is as shown in figure 1, including two sides for the embodiment of the present invention Vertical two side levers 101,102 and the cross bar 103 being connected between two edge-on bars 101,102, The side bottom bar 104,105 that is connected with two edge-on bars 101,102 respectively and with two side bottom bars 104th, the rear bottom bar 106 of 105 connections, opens on framework and is provided with net (not shown), the two of cross bar 103 The top respectively with edge-on bar 101,102 is held to connect, one end and side of each side bottom bar 104/105 The bottom connection of vertical rod 101,102, two ends of the other end respectively with rear bottom bar 106 are connected, cross bar 103 ejector rod parts for being alternatively referred to as framework 10.

In embodiment as depicted, the connected connecting rod 11 of each two is all connection at a right angle.This In embodiment, each connecting rod 11 is preferably plastic material and is made.In the junction of connecting rod 11 Side sets hinge 16, and hinge 16 by fastener, fix by such as screw or pin 17.Hinge 16 And fastener 17 is both preferably plastic material and is made.Therefore, the whole framework in the present embodiment is all By plastic material is made, whole goal and net are all made of nonmetallic materials, a side when being fabricated to goal Face is cost-effective, mitigates weight, on the other hand meets the requirement of environmental protection.Current many physical culture devices Material is all difficult to avoid that uses metal material, so as to the environmental protection for being difficult to reach European Union and external numerous places refers to Mark.The present embodiment uses plastic material by whole, so as to fully meet environmental requirement.

As shown in Figures 2 and 3, the partial enlargement structure of coupling part is shown.Lug 152 parallel to The extension of the direction of bar 151 is carved, (the present embodiment is straight parallel to connecting rod 11 to carve the bearing of trend of bar 151 End connecting rod) axle.So, it is easy to that pin 15 will be inserted into and is inserted into tenon 12 and tongue-and-groove 13, And when being collided by external force, the both sides at connected connecting rod 11 such as same angle compressed or Open, such as edge-on bar 101 and side bottom bar 104, when external force is collided on edge-on bar 101, side The side bottom bar 104 of vertical rod 101 towards occur angle rotate, i.e. doubling, strength direction be in the axial direction, Therefore, these parts are along axially arranged strengthening steadiness.Preferably, lug 152 extends Length is less than carves the lateral edges length half in the place face of bar 151, i.e., lug 152 is one section, can be with Regard a projection as, should not be too short, it is too short insecure.Lug 152 is in the longitudinal direction by outside Along extending internally, i.e., lug 152 is arranged at and is inserted into pin 15 in the outer part, may also set up in certainly Between or inner side even its development length be whole side length, the present embodiment is in order that pin must be inserted into 15 need not exit in opening and folding, so that lug 152 is arranged at edge as far as possible, so as to In opening and folding, be inserted into pin 15 has more spaces to protect in the place for being not provided with lug 152 Be held in tongue-and-groove 13, be maintained at carve in groove 121 to carve the part of bar 151 longer.Due to carving without pulling down Enter pin 15, pin 15 is inserted into during so as to avoiding pulling down and is easily lost, without searching when taking apart and folding Or placement is inserted into pin 15, convenient operation.Further, lug 152 is by positioned at being inserted into the side of pin 15 The lowermost position in face is extended laterally out, i.e. the bottom surface of lug 152 (contacts down with groove 132 Surface) it is concordant with the bottom surface 150 (protrude out carve bar 151 face) for being inserted into pin 15, it is same water Plane, can so improve the structural strength of lug 152, be unlikely to be collided by external force in connecting rod 11 When fracture.

Groove 121 is carved along the axially extending of connecting rod 11, the slot bottom width of groove 121 is carved more than notch Width, the top surface for carving bar 151 contacts with the bottom land for carving groove 121, carves the top surface width of bar 151 More than the width for carving the root of bar 151 so as to carve during bar 151 is stuck in and carves groove 121.By this structure, Pin 15 will be inserted into be stuck in tenon 12.For example, carving groove 121 in the axle perpendicular to connecting rod 11 Direction on section be in tapered shape, to carve bar 151 perpendicular to connecting rod by bottom land to notch Section on the direction of 11 axle is in tapered shape by top to root.Certainly, the He of groove 121 is carved Carving bar 151 can also be using other specific constructive form, for example, carving groove 121 perpendicular to connection Section on the direction of the axle of bar 11 is " T " or "+" shape etc., equally, carves bar 151 and is hanging down It is straight in the section on the direction of the axle of connecting rod 11 be " T " or "+" shape etc., however it is not limited to this. Carve bar 151 and carve the same length of groove 121, carve axial direction of the groove 121 along connecting rod 11 Development length can be the length (length i.e. on the axial direction of 12 surface of tenon 120 on the axial direction of tenon 12 Degree), the development length for carving bar 151 can be the length on the axial direction of whole bottom surface 150.It is inserted into pin 15 With the bottom surface 150 for carving bar 151 and the area of 12 surface of tenon 120 for opening up fluted 121 It is identical to be preferably shaped to, and both are mutually brought into close contact together, and is tightly accommodated in tongue-and-groove 13 In.Carve bar 151 and be preferably located at the axis line position for being inserted into the bottom surface 150 of pin 15, carve groove 121 It is preferably located at the axis line position on the surface 120 of tenon 12.

As shown in Figures 2 and 3, the end of connecting rod 11 with tongue-and-groove 13 is bending end, tongue-and-groove 13 notch is opened in the end face of bending end and extends through the week relative with end face of connecting rod 11 Face.So, another connecting rod 11 can be straight end connecting rod, and tongue-and-groove 13 connects along straight end The direction (i.e. the axial direction of straight end connecting rod 11) of the insertion of extension bar 11 extends through the end face of tenon 12 And with the end face relative side face relative with end face.The bottom land of tongue-and-groove 13 is perpendicular to connecting rod 11 Axle, the bearing of trend of groove 132 parallel to bottom land, i.e., parallel to the connecting rod 11 of insertion tongue-and-groove 13 Axle, i.e. tenon 12 is axially inserted into tongue-and-groove 13 along straight end connecting rod 11.

The articulated structure of connected connecting rod 11 is installed on the inner side of bending end, and tongue-and-groove 13 is in bending Notch edge on the outside of end is arc to be inserted into pin when connected connecting rod 11 is folded and is opened What 15 lug 152 was close to that arc-shaped side is not provided with lug 152 along moving is partially housed in tenon In groove 13, can realize opening and folded frame 10 so that being inserted into pin 15 and not falling off yet.

Further, the profile of outer surface for being inserted into pin 15 is engaged with the surface of bending end, smooth Connection transition, does not have rough vestige.Be inserted into pin 15 expose outside outer surface on be provided with Ripple, so as in folding or opening, there is provided frictional force is exited to be relatively easy to that pin 15 will be inserted into Or by entering.

Figure 4 and 5 are referred to, is the foldable frame 20 of the embodiment of the present invention two.Embodiment two Have in multiple connecting rods 11 in framework 20 one it is more long.The foldable frame 20 of embodiment one with The structure of foldable frame 10 of embodiment two is essentially identical, and difference is essentially consisted in more long Connecting rod 11, Figure 4 and 5 use identical label with identical element in Fig. 1-3.Embodiment It is connecting rod more long to be mainly cross bar 203 and rear bottom bar 206 in two foldable frame 20.

The structure of cross bar 203 and the material of rear bottom bar 206 and junction all with embodiment one in cross bar 103 and rear bottom bar 106 it is essentially identical, mainly cross bar 203 and rear bottom bar 206 is respectively at middle part Position increases stretching structure 208.The stretching structure 208 of the present embodiment is convex including what can mutually be fastened Block and circumferential groove, as shown in figure 5, by taking cross bar 203 as an example, it include bar insertion section 203a and Bar resettlement section 203b two parts, 203b two parts in bar resettlement section are hollow structure, hollow aperture with The external diameter of bar insertion section 203a is engaged, so that bar insertion section 203a can be inserted and is contained in bar In the 203b of resettlement section, so as to realize stretching.Stretching structure includes being arranged at bar resettlement section 203b's Internal surface of hole and the concavo-convex buckle structure of bar insertion section 203a outer surfaces.Specifically, for example, The hole inner ring surface setting circumferential groove 208a of bar resettlement section 203b, and bar insertion section 203a appearances Face sets projection 208b, during projection 208b can be embedded in circumferential groove 208a under thrust, with Just two parts of cross bar 203 are connected.Projection 208b can be energy elastic compression, or in bar The internal surface of hole of resettlement section 203b sets one from end face to circumferential groove 208a and axially extending leads Groove 208c, circumferential groove 208a and rotates so that projection 208b can be reached along guide groove 208c Buckle into circumferential groove 208a.Projection 208b can be two or more, and correspondence guide groove 208c also sets Multiple is put, the intensity of bar can be improved, when using foldable structure, it would however also be possible to employ chain connection side Formula, or other modes, however it is not limited to this.

Referring again to Fig. 1 and 4, when pleated, first by two connected doublings of connecting rod 11, incite somebody to action The part that being inserted into pin 15 has lug 152 is exited, and is inserted into during pin 15 remains at tongue-and-groove 13, does not have It is inserted into pin 15 and its lug 152 blocks connecting rod 11, connected connecting rod 11 can folding Stack.The order for having six roots of sensation connecting rod 11, folding in Fig. 1 is, the opposite side of edge-on bar 101 The doubling of bottom bar 104, the doubling of 102 opposite side bottom bar of edge-on bar 105, this four bars all doublings are folded Afterwards, cross bar 103 and rear bottom bar 106 are close to (overlap), then by the phase of side bottom bar 104 and 105 To the doubling of rear bottom bar 106, the doubling of 101 and 102 opposing rail of edge-on bar 103, these doublings All it is junction doubling, last whole framework is folded into only has a length for bar, six roots of sensation bar all bases This overlap, so as to be convenient for carrying.For the framework 20 of embodiment two, for convenience of fold, can first by compared with Cross bar 203 and 206 long is flexible or folds, and repeats above-mentioned folding step, equally accomplishes to fold Afterwards, only there is a length for bar (edge-on bar or side bottom bar), six roots of sensation bar is all substantially overlapping.

When needing to open again (prop) framework 10 after folding, be inserted into pin 15 equally partly exit it is (convex Ear 152 is exited) or all exit, allow tenon 12 to insert tongue-and-groove 13, then will be inserted into pin 15 tight Patch tenon 12 is entirely insertable tongue-and-groove 13, and lug 152 is inserted along groove 132, and carves bar 151 Along groove 121 is carved, that is, realize opening, that is, install or assemble framework 10, for framework 20, can Connecting rod more long is redrawn after opening again.

Above-mentioned foldable frame 10,20 is by tongue-and-groove and the combination of tenon, the connection that will be connected Bar 11 is closely connected, and is reinforced by being inserted into pin 15, is first taken out when pin 15 before folding, is inserted into Or part is exited, tenon insertion tongue-and-groove and with hinge rotate to right angle when, then pin 15 will be inserted into carve Enter, will two bars firmly connect.Due to being inserted into pin 15 tongue-and-groove is inserted into lug 152 In the groove 132 of 13 side walls, even if being subject to extraneous collision, for example, two connecting rods 11 are forced to be pressed from both sides Angle becomes hour, and being inserted into pin 15 and its lug 152 can block two bars and will not occur relatively around hinge Rotate or relative tilt, improve the stability of framework, it is safe, and also such structure causes folding Folded and opening change is more easy and quick.

The above is only the preferred embodiment of the present invention, it is noted that for the art For those of ordinary skill, on the premise of the technology of the present invention principle is not departed from, can also make some Improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.

Claims (9)

1. a kind of foldable frame, it includes the multiple connecting rods being hinged and connected, and its feature exists In two connected connecting rods are inserted into the angled connection of pin, one of connecting rod by one End stretches out a tenon, the end of another connecting rod have house described in be inserted into pin and institute State the tongue-and-groove of tenon, the tenon have one by connecting rod it is axially extending carve groove, it is described to carve Enter pin bottom surface be convexly equipped with an insertion be contained in it is described carve in groove carve bar, it is described to be inserted into the two of pin Side has protruded out a pair of lugs, and two side walls correspondences of the tongue-and-groove offer convex for housing this pair The groove of ear, the lug extends parallel to the bar direction of carving, and the bar bearing of trend of carving is put down Row is in the axle of the connecting rod, and the lateral edges that the lug development length is less than face where bar of carving are long Degree half.

2. foldable frame as claimed in claim 1, it is characterised in that the groove of carving Slot bottom width is more than the width of notch, and the top surface for carving bar is contacted with the bottom land for carving groove, The top surface width for carving bar is more than the width of carving bar root and described carves groove so as to carve bar and be stuck in.

3. foldable frame as claimed in claim 1, it is characterised in that the groove of carving exists Section on the direction of pitman shaft be by bottom land to notch in tapered shape, it is described Carve bar is in tapered by top to root in the section on the direction of pitman shaft Shape.

4. foldable frame as claimed in claim 1, it is characterised in that with tongue-and-groove Connection boom end is bending end, and the notch of the tongue-and-groove is opened in the end face of the bending end and prolongs Stretch the side face relative with end face through connecting rod.

5. foldable frame as claimed in claim 4, it is characterised in that the tongue-and-groove , perpendicular to the axle of the connecting rod, the bearing of trend of the groove is parallel to bottom land for bottom land.

6. foldable frame as claimed in claim 4, it is characterised in that connected connection The articulated structure of bar is installed on the inner side of the bending end, groove of the tongue-and-groove on the outside of bending end Mouthful edge is arc to be inserted into the convex of pin described in when connected connecting rod is folded and is opened Ear is close to arc-shaped side and being partially housed in the tongue-and-groove of lug is not provided with along moving.

7. foldable frame as claimed in claim 1, it is characterised in that described foldable Framework is goal rack, and connecting rod more long is provided with folding in the middle in the multiple connecting rod Structure or stretching structure.

8. foldable frame as claimed in claim 1, it is characterised in that the lug by Extended laterally out positioned at the lowermost position for being inserted into pin side, the bottom surface of the lug be inserted into pin Bottom surface it is concordant, the lug is in the longitudinal direction by being inserted into the outward flange of pin along extending internally.

9. foldable frame as claimed in claim 1, it is characterised in that it is described carve bar and The length for carving groove is identical, and the length for carving groove is equal to the length on tenon axial direction, described to carve bar Development length be the length being inserted on the whole bottom surface axial direction of pin.