CN103669982A

CN103669982A - Tent

Info

Publication number: CN103669982A
Application number: CN201310462604.3A
Authority: CN
Inventors: 黄长久
Original assignee: Spectrum Of Heron (xiamen) Outdoor Goods Co Ltd
Current assignee: Spectrum Of Heron (xiamen) Outdoor Goods Co Ltd
Priority date: 2013-09-30
Filing date: 2013-09-30
Publication date: 2014-03-26
Anticipated expiration: 2033-09-30
Also published as: CN103669982B

Abstract

The invention discloses a tent. The tent comprises a tent frame and a tent cloth. The tent frame comprises a center part and at least two tent bar sets. Each tent bar set comprises an upper tent bar, a middle tent bar and a lower tent bar. The first ends of the upper tent bars are pivoted to the center part, the second ends of the upper tent bars and the first ends of the middle tent bars are connected through first rotational joints, and the second ends of the middle tent bars and the first ends of the lower tent bars are connected through second rotational joints. The tent frame can be changed between an unfolded state and a folded state, in the moving process from the folded state to the unfolded state, the upper tent bars are rotated from top to bottom relative to the center part, turning of the middle tent bars relative to the upper tent bars is the same as turning of the upper tent bars relative to the center part, and turning of the lower tent bars relative to the middle tent bars is opposite to turning of the middle tent bars relative to the upper tent bars. The tent cloth is connected with the center part, the upper tent bars, the middle tent bars and the lower tent bars. The tent has the following advantages that the lower tent bars are folded downwards (inwards), bottom angles of the tent cloth are folded inwards, unfolding and folding are convenient, the structure is simple, and the cost is low.

Description

Tent

Technical field

The present invention relates to a kind of tent.

Background technology

Existing tent, comprise paulin frame and tarpaulin, this paulin frame comprises that a core and at least two is articulated in core and with the tarpaulin rod group of annular display arrangement, this each tarpaulin rod group comprises the first tarpaulin rod and the second tarpaulin rod, this the first tarpaulin rod first end is articulated in core, this the second tarpaulin rod second end pivot joint first tarpaulin rod first end, this second tarpaulin rod is expansion link, this tarpaulin connects paulin frame.There is following defect in this existing tent: in that time of opening and packing up tent, because of tarpaulin, tighten stressedly, telescoping tube inner tube stress deformation causes sliding and has some setbacks, and is inconvenient to operate, and particularly adopts the situation of flexible fiber bar; Tarpaulin bottom size undersize when folding when tent is packed up, can folding for increasing the slip ribbon of bottom size therefore must set up in bottom.

Summary of the invention

The invention provides tent, it has overcome the existing deficiency of tent in background technology.

The technical scheme adopting that the present invention solves its technical problem is:

Tent, comprise paulin frame and tarpaulin, this paulin frame comprises that a core and at least two is articulated in core and with the tarpaulin rod group of annular display arrangement, this each tarpaulin rod group comprises tarpaulin rod, middle tarpaulin rod and lower tarpaulin rod, on this, tarpaulin rod first end is articulated in core, on this, tarpaulin rod the second end is connected to relatively rotate with middle tarpaulin rod first end by the first cradle head, and in this, tarpaulin rod the second end is connected to relatively rotate with lower tarpaulin rod first end by the second cradle head; This paulin frame can change between deployed condition and folding state, while moving from folding state to deployed condition, tarpaulin rod rotates from top to down relative to core, and, in this tarpaulin rod relatively go up tarpaulin rod turn to identical with turning to of the relative core of upper tarpaulin rod, this lower tarpaulin rod relatively in tarpaulin rod turn to the switched in opposite of upper tarpaulin rod relative to middle tarpaulin rod; This tarpaulin connects core, upper tarpaulin rod, middle tarpaulin rod and lower tarpaulin rod.

Among one embodiment: be provided with the second limit rotation structure for limiting the relative core of upper tarpaulin rod maximum rotation angle from top to down between tarpaulin rod and core on this;

This first cradle head comprises the first solid seat of affixed upper tarpaulin rod second end and the first swivel base of an affixed middle tarpaulin rod first end, this first swivel base and the first solid seat can be rotationally connected, and between this first swivel base and the first solid seat, are provided with the first limit rotation structure for limiting the maximum expanded angle between upper tarpaulin rod and tarpaulin rod;

This second cradle head comprises the second solid seat of affixed middle tarpaulin rod second end and the second swivel base of an affixed lower tarpaulin rod first end, this second swivel base and the second solid seat can be rotationally connected, and between this second swivel base and the second solid seat, are provided with the lock-connection structure that can select interlocking and release the lock.

Among one embodiment: this core comprises a centre mount and at least two pin joint seats, this centre mount is established at least two box structures of annular display arrangement, this pin joint seat is provided with pin thread structure and articulated section, what this pin thread structure and box structure formation can be torn open along vertical card can install and remove syndeton, and on this, tarpaulin rod and articulated section are articulated.

Among one embodiment: this first solid seat has the first affixed head of affixed upper tarpaulin rod second end and the U-shaped part of an affixed first affixed head, has U-lag in this U-shaped part; The affixed middle tarpaulin rod first end of described the first swivel base and being articulated in the U-lag of U-shaped part, the bottom surface of this U-lag can coordinate the first swivel base to form described the first limit rotation structure.

Among one embodiment: the pivot joint axis of this second swivel base and the second solid seat is axis X, this button comprises a button part and a keyed portions, separately set button and elastic body, this button is articulated in the second swivel base and can between lock position and loose position, rotates, this elastic body contact between the second swivel base and button so that button is subject to the torsion towards lock position by loose position; Affixed and the V-shaped structure of this button part and keyed portions, what this lock-joining part divided convexes with projection in the face of on the side of button part; This second solid seat has an arcwall around axis X, and this arcwall place is concaved with groove, should the projection in lock position insert in groove.

Among one embodiment: on this, tarpaulin rod, middle tarpaulin rod and lower tarpaulin rod are all rigid bar.

Among one embodiment: on this, tarpaulin rod, middle tarpaulin rod and lower tarpaulin rod are all elastomer bar.

Among one embodiment: this lower tarpaulin rod is installed with limited block; This tarpaulin has the side that is extended to corner, bottom by top center, is connected with a plurality of companies parts on this side, and a plurality of the company in parts of this side has at least company's part to slip at lower tarpaulin rod and between the second cradle head and limited block.

Among one embodiment: this corner, tarpaulin bottom is connected to lower tarpaulin rod bottom.

Among one embodiment: the number of this tarpaulin rod group is two or three or four or six or eight.

The technical program is compared with background technology, and its tool has the following advantages:

1, pack up at present tarpaulin rod relatively in tarpaulin rod for rotating, middle tarpaulin rod is relative to going up tarpaulin rod for upwards to rotate, upper tarpaulin rod upwards rotates along center, (inwardly) folding downwards of the lower tarpaulin rod of tarpaulin rod group, the base angle of tarpaulin is toward interior gathering, thereby avoided the undersize of tarpaulin bottom size in folding process, launches convenient folding, simple in structure, cost is low.

2, lower tarpaulin rod is installed with limited block, and company's part of restriction tent tarpaulin while packing up the down lower end of tarpaulin rod slides, the opening of Convenient tent.

3, on this, between tarpaulin rod and core, be provided with the second limit rotation structure for limiting the relative core of upper tarpaulin rod maximum rotation angle from top to down; Between this first swivel base and the first solid seat, be provided with the first limit rotation structure for limiting the maximum expanded angle between upper tarpaulin rod and tarpaulin rod; Between this second swivel base and the second solid seat, be provided with the lock-connection structure that can select interlocking and release the lock, support strength is high, and convenient folding is quick.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the invention will be further described.

Fig. 1 has illustrated the structural representation of the tent of a preferred embodiment.

Fig. 2 has illustrated the A place enlarged diagram of Fig. 1.

Fig. 3 has illustrated one of the schematic perspective view of the paulin frame of a preferred embodiment, now in deployed condition.

Fig. 4 illustrated a preferred embodiment paulin frame schematic perspective view two, now in folding first step.

Fig. 5 illustrated a preferred embodiment paulin frame schematic perspective view two, now in folding second step.

Fig. 5-1 has illustrated the B place enlarged diagram of Fig. 5.

Fig. 6 illustrated a preferred embodiment paulin frame schematic perspective view three, now in folding third step.

Fig. 7 illustrated a preferred embodiment paulin frame schematic perspective view four, now in folding the 4th step.

Fig. 8 illustrated a preferred embodiment paulin frame schematic perspective view five, now in folding the 5th step.

Fig. 9 illustrated a preferred embodiment paulin frame schematic perspective view six, now in folding state.

Figure 10 has illustrated the three-dimensional structure diagram in deployed condition of central module and upper tarpaulin rod.

Figure 11 has illustrated the three-dimensional structure diagram in rounding state of central module and upper tarpaulin rod.

Figure 12 has illustrated partly cut-away's structure chart of central module and upper tarpaulin rod.

Figure 13 has illustrated the schematic perspective view of centre mount.

Figure 14 has illustrated the sectional drawing of centre mount.

Figure 15 has illustrated one of schematic perspective view of pin joint seat.

Figure 16 illustrated pin joint seat schematic perspective view two.

What Figure 17 had illustrated pin joint seat partly cuts open schematic diagram.

Figure 18 has illustrated the generalized section of middle tarpaulin rod, lower tarpaulin rod and the second cradle head, and in deployed condition, button is in lock position.

Figure 19 has illustrated the generalized section of middle tarpaulin rod, lower tarpaulin rod and the second cradle head, and in deployed condition, button is in lock position.

Figure 20 has illustrated the generalized section of middle tarpaulin rod, lower tarpaulin rod and the second cradle head, in folding process.

Figure 21 has illustrated the perspective exploded view of middle tarpaulin rod, lower tarpaulin rod and the second cradle head.

The master that Figure 22 has illustrated middle tarpaulin rod, lower tarpaulin rod and the second cradle head looks decomposing schematic representation.

Figure 23 has illustrated the structural representation of the tent of the second embodiment.

Figure 24 has illustrated the C place enlarged diagram of Figure 23.

The specific embodiment

Please refer to Fig. 1 to Fig. 9, tent, comprises paulin frame 100 and tarpaulin 200, and this paulin frame 100 comprises that a core 110 and at least two is articulated in core 110 and with the tarpaulin rod group 120 of annular display arrangement.Among the present embodiment, the number of this tarpaulin rod group 120 is four but not as limit, as required, also can adopt two, three, five, six or eight for example, as two a plurality of paulin framves to form total paulin frame, connect again tarpaulin side by side.

This each tarpaulin rod group 120 comprises tarpaulin rod 121, middle tarpaulin rod 122 and lower tarpaulin rod 123, on this, tarpaulin rod 121 first ends are articulated in core 110, on this, tarpaulin rod 121 second ends are connected to relatively rotate with middle tarpaulin rod 122 first ends by the first cradle head 130, in this, tarpaulin rod 122 second ends are connected to relatively rotate with lower tarpaulin rod 123 first ends by the second cradle head 140, so that this paulin frame 100 can change between deployed condition and folding state, while moving from folding state to deployed condition, tarpaulin rod 121 rotates from top to down relative to core 110, and, in this, tarpaulin rod 122 is relatively gone up tarpaulin rod 121 and is turned to identical with turning to of the relative core 110 of upper tarpaulin rod 121, the relatively middle tarpaulin rod 122 of this lower tarpaulin rod 123 turns to the switched in opposite of upper tarpaulin rod 121 relative to middle tarpaulin rod 122.

On this, tarpaulin rod 121 is provided with the second limit rotation structure for limiting the relative core 110 of upper tarpaulin rod 121 maximum rotation angle from top to down with 110 of cores.

This first cradle head 130 comprises the first transposase 11 32 of the first solid seat 131 and one affixed middle tarpaulin rod first end of affixed upper tarpaulin rod second end, this first transposase 11 31 and the first solid seat 132 can be rotationally connected, and between this first swivel base and the first solid seat, are provided with the first limit rotation structure for limiting the maximum expanded angle between upper tarpaulin rod and tarpaulin rod.Among the present embodiment, this first solid seat 131 has first affixed 1311 and the U-shaped part 1312 of an affixed first affixed head of affixed upper tarpaulin rod second end, in this U-shaped part, has U-lag 1313; The affixed middle tarpaulin rod first end of described the first transposase 11 32 and being articulated in the U-lag 1313 of U-shaped part 1312, the bottom surface of this U-lag can coordinate the first swivel base to form described the first limit rotation structure.

This second cradle head 140 comprises the second transposase 11 42 of the second solid seat 141 and one affixed lower tarpaulin rod first end of affixed middle tarpaulin rod second end, this second swivel base and the second solid seat can be rotationally connected, and between this second swivel base and the second solid seat, are provided with the lock-connection structure that can select interlocking and release the lock.

This lower tarpaulin rod 123 is installed with limited block 1231, and this limited block 1231 for example adopts solid ring.

This tarpaulin 200, have with the number such as tarpaulin rod number by top center, extend to the side 210 of corner, bottom, on this side 210, be connected with a plurality of parts 220 that connect, among the present embodiment, this connects part 220 and is seamed in tarpaulin 200 by ribbon, and this connects part and selects hook, but not as limit, sliding sleeve for example.This tarpaulin connects core, upper tarpaulin rod, middle tarpaulin rod and lower tarpaulin rod, and this connection for example adopts: tarpaulin top center is hung and connect or be articulated in core, and this hook articulates tarpaulin rod, middle tarpaulin rod or lower tarpaulin rod.Best: to have at least company's part to slip at lower tarpaulin rod and between the second cradle head and limited block, by the second cradle head and limited block restriction, connect the slip spacing of the relative lower tarpaulin rod of part; This corner, tarpaulin bottom is connected to lower tarpaulin rod bottom.

Among the present embodiment, on this, tarpaulin rod 121, middle tarpaulin rod 122 and lower tarpaulin rod 123 are all elastomer bar, make this tent be the yurt shape tent of arch.

This second limit rotation structure can adopt various structures to realize, and for example: core is baffled, by upper tarpaulin rod, rotates and abut against baffle plate restriction maximum rotation angle; Or pivot section or upper tarpaulin rod are partly established projection, during by projection contact core, limit maximum rotation angle degree; Or, the structure of introducing below.Among the present embodiment, this core 110 adopts structure:

Please refer to 10 to Figure 17, this core 110 comprises a centre mount 111 and at least two pin joint seats 112, this centre mount 111 is established at least two box structures 113 of annular display arrangement, this pin joint seat 112 is provided with pin thread structure 114 and articulated section 115, what this pin thread structure and box structure formation can be torn open along vertical card can install and remove syndeton, and on this, tarpaulin rod and articulated section are articulated.

This pin thread structure 114 and box structure 113 form can tear open along vertical card can install and remove syndeton, for example: this box structure 113 comprises that two circumferential intervals are arranged with chute 1131 and that layout and bottom the pass to centre mount 111 bottom surfaces protuberance 1132 between between two chutes; This pin thread structure 114 comprises the solid sheet 1142 of two slide plates 1141 and affixed two slide plates, and 1141 of this two slide plates form buckling groove 1144, the adaptive chute 1131 of this slide plate 1141, the adaptive protuberance 1132 of this buckling groove 1144; This protuberance 1132 is established barb 1133, this solid sheet 1142 is established locating slot 1143, this barb 1133 and locating slot 1143 forms interface arrangments, by pin thread structure being slipped into box structure and barb from bottom to top, snaps in locating slot, can avoid the pin joint seat centre mount that slips away.One preferred version: these centre mount 111 end faces are baffled 116, this baffle plate 116 forms the shield portions on chute tops, is construed as limiting Slipped Clove Hitch structure; This buckling groove is the young large structure of telling, for example, be the trapezium structure in dovetail groove or figure.Among the present embodiment, the chute 1131 of these every adjacent two box structures combines and forms a total groove 117.

Wherein, this protuberance 1132 has a lateral surface in the face of solid sheet 1142, this solid sheet 1142 has a medial surface in the face of protuberance 1132, this barb 1133 is located at the lateral surface of protuberance 1132, this locating slot 1143 is located at the medial surface of solid sheet 1142, by the relative box structure of the clamping restriction pin thread structure down sliding of barb 1133 and locating slot 1143.

On this, tarpaulin rod 121 and articulated section 115 are articulated and are configured to the position limiting structure that tarpaulin rod 121 could rotate and can limit maximum rotation angle from top to down, for example: this articulated section 115 comprises two lugs 1151, and an affixed limiting plate 1152 between this two lug; On this, tarpaulin rod 121 ends set firmly pivot connector 1211, this pivot connector 1211 comprises at least one pin-jointing piece 1212, this pin-jointing piece 1212 is in two lugs 1151 and pivot joint lug 1151, and the pivot joint axis of this pivot connector and articulated section is positioned on limiting plate, and this position limiting structure comprises described limiting plate.

This central module can produce following beneficial effect: what 1, pin thread structure and box structure formation can be torn open along vertical card can install and remove syndeton, upper tarpaulin rod and articulated section are articulated and are configured to the position limiting structure that tarpaulin rod could rotate and can limit maximum rotation angle from top to down, during assembling, can first cloth cover be enclosed within to upper tarpaulin rod, again upper tarpaulin rod and centre mount are connected together, mounting or dismounting fast and easy, mounting or dismounting cost is low, and mould structure is simple, die sinking cost is low, and product percent defective is low.2, box structure comprises that two circumferential intervals are arranged with and arranges and chute and that bottom the passes to centre mount bottom surface protuberance between between two chutes; Pin thread structure comprises the solid sheet of two slide plates and affixed two slide plates, between two slide plates, forms buckling groove; Barb and locating slot form interface arrangment; By pin thread structure being slipped into box structure and barb from bottom to top, snap in locating slot, mounting or dismounting fast and easy, can rapid-assembling without any instrument, firm and reliable connection.3, buckling groove is the young large structure of telling, and firm and reliable connection is avoided pin joint seat off center seat.4, the predeterminable a plurality of box structures of central module, the radical that optionally connects tarpaulin rod on tent according to product difference, the quantity that can connect arbitrarily tarpaulin rod on two or four or the six roots of sensation or eight tents, realizes the maximum commonality of production mould, large Talon low production cost.

Between this second swivel base and the second solid seat, be provided with the lock-connection structure that can select interlocking and release the lock, this lock-connection structure for example adopts: set latch, after rotateing in place, the solid seat of latch grafting second and the second swivel base are realized interlocking with this; Or, adopt following structure to realize:

Please refer to 18 to Figure 22, the concrete structure of this second cradle head 140 for example: comprise the second transposase 11 42, the second solid seat 141, button 143 and elastic body 144.This second transposase 11 42 and the second solid seat 141 are axis X by pivot 145 pivot joints and pivot joint axis.This button 143 comprises a button part 1431 and a keyed portions 1432, and the affixed and V-shaped structure of this button part 1431 and keyed portions 1432 is best, the one-body molded mode of this affixed employing.This keyed portions 1432 has a medial surface and in the face of button part 1431 lateral surface of medial surface dorsad, and this medial surface convexes with projection 1433.This button 143 is articulated in the second transposase 11 42 and can between lock position and loose position, rotates, and preferably this pivot points is positioned at the junction of V-arrangement.These elastic body 144 contacts at the second transposase 11 42 and 143, button so that button 143 is subject to the torsion towards lock position by loose position.This second solid seat 141 has an arcwall 1411 around axis X, and these arcwall 1411 places are concaved with groove 1412, should the projection 1433 in lock position insert in groove 1412.

This second transposase 11 42 comprises the first pedestal 1421 and stretches out the first lug 1422 of the first pedestal, these the first lug 1422 numbers are one, this first lug 1422 is outstanding from the first pedestal 1421 middle parts, makes the first pedestal 1421 also have the mating part that is positioned at the first lug 1422 both sides.Two the second lugs 1414 that this second solid seat 141 comprises the second pedestal 1413 and stretches out the second pedestal 1413, this first lug 1422 is between 1414 of two second lugs, this pivot 145 is through the first lug 1422 and the second lug 1414, rivet for example, or bolt etc., so that form pin-jointed structure between them; This second lug 1414 is established above-mentioned arcwall 1411.This first lug 1422 also has the arcwall around axis X.This keyed portions 1432 is between 141 of the first pedestal 1421 and the second solid seats, and in a preferred version, keyed portions 1432 is positioned at 1414 of the mating part of the first pedestal 1421 and the second lugs.

This keyed portions 1432 comprises two interlocking seats, this projection 1433 is located at interlocking seat, this two interlockings seat interval and be fixed in respectively button part 1431 both sides, and this two interlockings seat lays respectively at the first lug 1422 both sides, in other words, this first lug 1422 is positioned between two interlocking seats.In one preferred version, these button part 1431 both sides are all connected with affixed 1434, this two interlockings seat is fixed in respectively the side of practising physiognomy of two affixed 1434, these two affixed 1434 are positioned at outside the second solid seat 141, or this two second lug is positioned at two affixed 1434, makes appearance looks elegant by this structure, compact conformation, can also avoid user to point and be pressed from both sides.In one preferred version, this projection 1433 has a medial surface and in the face of the button part lateral surface of medial surface dorsad, and the included angle B between this medial surface and keyed portions is not more than 90 degree, best, and described angle is 80-90 degree.

In one preferred version, these the first lug 1422 end faces are arranged with a locating slot, and this elastic body 144 is Compress Spring, and this Compress Spring is positioned at the side towards keyed portions of locating slot and contact button part 1431, preferably this place, side is convexly equipped with a short column, described spring socket short column.

In one preferred version, these two second lugs 1414 practise physiognomy to the affixed limited block 1415 in inner side, outside these the first lug 1422 two sides, enclose to be arranged with and form arc notch 1423, the center of circle of this arc notch 1423 is positioned in axis X, when middle tarpaulin rod and lower tarpaulin rod relatively rotate, arc notch 1423 motions relatively of this limited block 1415, when limited block 1415 is arranged in arc notch 1423 one end, the angle of tarpaulin rod and lower tarpaulin rod is 0 degree or approaches 0 degree, middle tarpaulin rod is parallel with lower tarpaulin rod, while being arranged in arc notch 1423 other end, the angle of tarpaulin rod and lower tarpaulin rod is 180 degree, middle tarpaulin rod and lower tarpaulin rod launch.

This second cradle head tool has the following advantages: 1, the V-shaped structure of button part and keyed portions, what lock-joining part divided convexes with projection in the face of on the side of button part, the second solid seat has an arcwall around axis X, arcwall place is concaved with groove, projection in lock position is inserted in groove, therefore: a, compact conformation; B, easy to operate, easy to assembly, location is flexibly; C, can avoid finger blocked, security performance is high; D, interlocking intensity are large, no matter positive direction is rotated or counter-rotation can be firmly limited to avoid disengaging, stopping effect is good.2, keyed portions is between between the second pedestal and the second solid seat, and interlocking intensity is larger, and stopping effect is better.3, limited block arc notch motion relatively, coordinates the structure between draw-in groove and projection, and while making to rotate in place, projection just snaps in draw-in groove, handled easily.4, the angle between medial surface and keyed portions is not more than 90 degree, and interlocking intensity is large, no matter positive direction is rotated or counter-rotation can be firmly limited to avoid disengaging, stopping effect is good.

As required, in this lower tarpaulin rod, be slidably connected with the fluffy bar in the end.

Please refer to Figure 23 and Figure 24, they have illustrated the second preferred embodiment, and it and the first preferred embodiment difference are: on this, tarpaulin rod, middle tarpaulin rod and lower tarpaulin rod are all rigid bar.

The above, only for preferred embodiment of the present invention, therefore can not limit according to this scope of the invention process, the equivalence of doing according to the scope of the claims of the present invention and description changes and modifies, and all should still belong in the scope that the present invention contains.

Claims

1. tent, comprise paulin frame and tarpaulin, this paulin frame comprises that a core and at least two is articulated in core and with the tarpaulin rod group of annular display arrangement, it is characterized in that: this each tarpaulin rod group comprises tarpaulin rod, middle tarpaulin rod and lower tarpaulin rod, on this, tarpaulin rod first end is articulated in core, on this, tarpaulin rod the second end is connected to relatively rotate with middle tarpaulin rod first end by the first cradle head, and in this, tarpaulin rod the second end is connected to relatively rotate with lower tarpaulin rod first end by the second cradle head; This paulin frame can change between deployed condition and folding state, while moving from folding state to deployed condition, tarpaulin rod rotates from top to down relative to core, and, in this tarpaulin rod relatively go up tarpaulin rod turn to identical with turning to of the relative core of upper tarpaulin rod, this lower tarpaulin rod relatively in tarpaulin rod turn to the switched in opposite of upper tarpaulin rod relative to middle tarpaulin rod; This tarpaulin connects core, upper tarpaulin rod, middle tarpaulin rod and lower tarpaulin rod.

2. tent according to claim 1, is characterized in that:

On this, between tarpaulin rod and core, be provided with the second limit rotation structure for limiting the relative core of upper tarpaulin rod maximum rotation angle from top to down;

3. tent according to claim 2, it is characterized in that: this core comprises a centre mount and at least two pin joint seats, this centre mount is established at least two box structures of annular display arrangement, this pin joint seat is provided with pin thread structure and articulated section, what this pin thread structure and box structure formation can be torn open along vertical card can install and remove syndeton, and on this, tarpaulin rod and articulated section are articulated.

4. tent according to claim 2, is characterized in that: this first solid seat has the first affixed head of affixed upper tarpaulin rod second end and the U-shaped part of an affixed first affixed head, in this U-shaped part, has U-lag; The affixed middle tarpaulin rod first end of described the first swivel base and being articulated in the U-lag of U-shaped part, the bottom surface of this U-lag can coordinate the first swivel base to form described the first limit rotation structure.

5. tent according to claim 2, it is characterized in that: the pivot joint axis of this second swivel base and the second solid seat is axis X, separately set button and elastic body, this button comprises a button part and a keyed portions, this button is articulated in the second swivel base and can between lock position and loose position, rotates, this elastic body contact between the second swivel base and button so that button is subject to the torsion towards lock position by loose position; Affixed and the V-shaped structure of this button part and keyed portions, what this lock-joining part divided convexes with projection in the face of on the side of button part; This second solid seat has an arcwall around axis X, and this arcwall place is concaved with groove, should the projection in lock position insert in groove.

6. according to the tent described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that: on this, tarpaulin rod, middle tarpaulin rod and lower tarpaulin rod are all rigid bar.

7. according to the tent described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that: on this, tarpaulin rod, middle tarpaulin rod and lower tarpaulin rod are all elastomer bar.

8. according to the tent described in claim 1 or 2 or 3 or 4 or 5, it is characterized in that: this lower tarpaulin rod is installed with limited block; This tarpaulin has the side that is extended to corner, bottom by top center, is connected with a plurality of companies parts on this side, and a plurality of the company in parts of this side has at least company's part to slip at lower tarpaulin rod and between the second cradle head and limited block.

9. tent according to claim 8, is characterized in that: this corner, tarpaulin bottom is connected to lower tarpaulin rod bottom.

10. tent according to claim 8, is characterized in that: the number of this tarpaulin rod group is two or three or four or six or eight.