CN213097120U

CN213097120U - A foldable support frame and a folding device comprising the same

Info

Publication number: CN213097120U
Application number: CN202022506281.1U
Authority: CN
Inventors: 赵发喜
Original assignee: Shanghai Kunjie Hardware Tool Co Ltd
Current assignee: Shanghai Kunjie Hardware Tool Co Ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2021-05-04
Anticipated expiration: 2030-11-03

Abstract

The utility model discloses a foldable support frame and a folding device including the same. The foldable support frame includes at least two sets of support mechanisms, and the support mechanisms include a main support rod, a first main rod, a first hinge rod and an auxiliary support structure , the first main rod is slidably connected to the main support rod, and the first hinge rod is hinged to the main support rod and the first main rod respectively; the first main rod can slide along the main support rod and be relatively fixed so that the support mechanism is in an unfolded state or The folded state; wherein, the two groups of support mechanisms are movably connected through their respective main support rods. The support mechanism of the utility model can be fixed in the unfolded state and the folded state, and does not involve the disassembly and assembly of the parts, so the use is more convenient and fast, and the space occupied by the support frame and the space occupied by the transportation can be saved after being folded. , thus reducing transportation costs.

Description

Foldable support frame and folding device comprising same

Technical Field

The utility model relates to the technical field of life, in particular to convenient folding collapsible support frame, folding hammock and folding hanging seat.

Background

With the improvement of living standard, how to make comfortable and convenient life and leisure become the targets of consistent pursuit.

Hammocks are portable and easy to carry bedding for field activities, and the materials from which the hammocks are made are usually tied to trees. In addition to outdoor places, the daily leisure and recreation places are more indoor or in courtyards, and the places where the hammocks are bolted are difficult to find, so that the use of the leisure articles is limited.

JP5369064B2 discloses a movable folding hammock, wherein two large support frames provide the bolting position of the hammock, and the two support frames can be easily folded, so that the folding hammock can be folded to a certain extent, but the overall structure is still large after being folded, and besides the moving hammock is difficult, most importantly, the occupied space is large, and the transportation cost is high.

US8656532B2 discloses a folding hammock comprising a plurality of support bars and connectors which are interconnected in use to allow the hammock to be suspended after assembly. This kind of structure can save space in fold condition, but need assemble when using, need dismantle after using and just can accomodate, consequently use and fold up very loaded down with trivial details.

It is therefore desirable to provide a new folding structure to facilitate the use of a hammock or chair.

SUMMERY OF THE UTILITY MODEL

The utility model provides a collapsible support frame can solve the above-mentioned defect among the prior art.

The technical scheme of the utility model as follows:

a foldable support frame comprises at least two groups of support mechanisms, wherein each support mechanism comprises a main support rod, a first main rod, a first hinge rod and an auxiliary support structure playing a role in auxiliary support, one end of each first main rod is connected to the main support rod in a sliding mode, and two ends of each first hinge rod are hinged to the main support rod and the first main rod respectively; the first main bar is slidable along the main support bar and fixed at a predetermined position to place the support mechanism in an unfolded state or a folded state; wherein, two groups of the supporting mechanisms are movably connected through respective main supporting rods.

The two groups of supporting mechanisms of the utility model can be fixed in the unfolding state and the folding state to realize the folding of the supporting frame, the occupied space can be saved after the supporting frame is folded, the storage is convenient, and the occupied space for transportation is saved, thereby reducing the transportation cost; in addition, for current supporting frame structure, the utility model discloses do not relate to the dismouting of spare part, consequently it is convenient more, swift when launching and folding, accord with modern's consumption and life theory more.

Preferably, the auxiliary supporting structure includes at least one diagonal brace and at least one bottom frame rod, one end of the bottom frame rod is hinged to the main support rod, and two ends of the diagonal brace are movably connected to the first main rod and the bottom frame rod, respectively. The auxiliary supporting structure is used for stabilizing the whole structure of the supporting frame, the bottom frame rod and the main supporting rod are respectively attached to the ground in the unfolded state, and the inclined supporting rod is used for supporting the first main rod to prevent torsional deformation in the using process. Meanwhile, in the unfolding and folding processes of the support frame, the inclined support rods are used for pushing the underframe rods to unfold and pulling the underframe rods to fold, and the linkage effect is achieved.

Preferably, the auxiliary supporting structure includes at least two diagonal braces and at least two bottom frame rods, the two diagonal braces are symmetrically disposed on two sides of the first main frame, the two bottom frame rods are symmetrically disposed on two sides of the main supporting rod, and each diagonal brace is connected to one bottom frame rod on the same side. The diagonal braces and the underframe bars are respectively arranged in pairs, so that the auxiliary support structure is a structure symmetrical about the first main bar or the main support bar. The diagonal brace and the bottom frame rod which are arranged in pairs provide symmetrical supporting force for the first main rod, and the situation that the first main rod deviates towards one side in the use process to influence the stability of the supporting frame is prevented.

Preferably, a hinge point of the bottom frame rod and the main support rod is located between an end of the first hinge rod and an end of the first main rod. The structure makes the structure of the supporting mechanism more compact in the unfolding state and the folding state, and improves the compression ratio of the folding bracket, thereby further saving the space occupied by the supporting bracket in the folding state.

Preferably, in the unfolded state, the base frame rod is perpendicular to the main support rod and the first main rod, respectively. The main supporting rod and the underframe rods at the two sides form a cross supporting frame together, so that a more stable supporting force is formed.

Preferably, the inclined strut is connected with the first main rod or the bottom frame rod through a movable connecting structure, the movable connecting structure enables the inclined strut to rotate around a connecting point, and the inclined strut can deflect at an angle relative to the rotating plane.

Preferably, a mounting part is arranged at a predetermined position of the main support rod, the underframe rod is hinged to the main support rod through the mounting part, and a limiting part for limiting the rotation range of the underframe rod is arranged in the direction away from the sliding end of the first main rod on the mounting part. The mounting part enables the underframe rods to gradually draw close to the main support rod in the folding process of the support frame; under the unfolding state, the inclined stay bar applies a thrust to the bottom frame bar, and the mounting part provides a fixing force through the limiting part, so that the bottom frame bar is fixed under the combined action of the inclined stay bar and the mounting part, and the stability of the support frame is ensured.

Preferably, the first main rod is in sliding connection with the main support rod through a sliding sleeve, wherein the sliding sleeve is further provided with a locking structure, and the first main rod is locked in the unfolding state through the locking structure.

Preferably, the movable connection mode between the two groups of supporting mechanisms is hinged connection or plug connection. The articulated mode makes to be connected as a whole between two supporting mechanism, also is a whole after folding accomodate, the convenient removal. When the support frame is used for hanging the hanging seat, the individual weight of supporting mechanism, height or length etc. are great relatively, to the less user of strength, the whole operation degree of difficulty is big when folding or expanding, the structure that adopts plug-in connection makes this two sets of supporting mechanism can at first part through plug-in structure when folding, the rethread is folded two sets of supporting mechanism and is accomodate, when needs expand the support frame, also can at first expand two sets of supporting mechanism respectively, expand the back again and carry out plug-in connection with both respectively, reduced folding and the degree of difficulty that expands, plug-in connection's mode makes the utility model discloses an operation of support frame is easier, and is more friendly to the little user of power.

The utility model also provides a folding device, include as above arbitrary collapsible support frame to and including the load-bearing part that is used for supporting human structure, load-bearing part hang in the support frame, wherein, load-bearing part be hammock or hammock.

Compared with the prior art, the beneficial effects of the utility model are as follows:

firstly, the two groups of supporting mechanisms of the foldable supporting frame of the utility model can be fixed in the unfolded state and the folded state, so that the supporting frame can be folded, the space occupied by the supporting frame can be saved after folding, the folding is convenient for storage, and the space occupied by transportation is saved, thereby reducing the transportation cost and improving the market competitiveness; in addition, for current supporting frame structure, the utility model discloses do not relate to the dismouting of spare part, consequently it is convenient more, swift when launching and folding, accord with modern's consumption and life theory more.

Secondly, the utility model discloses a collapsible support frame, auxiliary supporting structure are used for stabilizing the overall structure of support frame, and under the expanded state, the underframe pole pastes ground respectively with the main tributary vaulting pole, and the diagonal brace is used for supporting first mobile jib, second mobile jib, prevents that first mobile jib, second mobile jib from taking place torsional deformation in the use; meanwhile, when the support frame is unfolded and folded, the support frame can be linked in the folding and unfolding processes through the connection of the inclined support rods, so that the use is more convenient.

Thirdly, the diagonal brace and the underframe rod of the foldable support frame of the utility model are respectively arranged in pairs, so that the auxiliary support structure is a symmetrical structure, and the diagonal brace and the underframe rod which are arranged in pairs provide symmetrical support force for the first main rod and the second main rod, thereby preventing the first main rod from deviating towards one side in the use process and influencing the stability of the support frame; the main supporting rods and the underframe rods on the two sides form a cross-shaped supporting frame together, so that more stable supporting force is formed; the installation department that sets up on the main tributary vaulting pole provides a retention power through spacing portion for under the expansion state hack lever realize fixedly under the combined action of diagonal brace and installation department, in order to guarantee the stability of support frame.

Fourthly, the position of the hinge point of the base frame rod and the main support rod of the foldable support frame of the utility model enables the structure of the support frame to be more compact in the folded state and the unfolded state, which is beneficial to improving the compression ratio; the structure of rotation connection make the carriage expand and folding in-process, the diagonal brace is more smooth and easy to the promotion and the pulling effect of chassis pole to can guarantee under fold condition, diagonal brace, chassis pole can be at utmost hold the main tributary vaulting pole tightly, further improve the compression ratio, save the occupation space of support frame.

Fifth, in the foldable support frame of the present invention, two sets of support mechanisms are movably connected in a hinged or inserting manner, wherein the two support mechanisms are connected into a whole in the hinged manner, and the support frame is also a whole after being folded and stored, so that the support frame is more convenient to fold, unfold and move; when the support frame is used for hanging the hanging seat, the individual weight of supporting mechanism, height or length etc. are great relatively, and consequently the operation degree of difficulty is bigger than normal when wholly folding or expand, and the structure that adopts plug-in connection makes two supporting mechanism fold respectively and expand respectively when folding, has reduced the degree of difficulty of folding and expansion, consequently to the user that the strength is little, plug-in connection's mode makes the utility model discloses an operation of support frame is easier.

Sixth, the folding chair or the folding hammock of the utility model has stable structure, can realize linkage in the unfolding process or the folding process, and does not need to disassemble and assemble part of the structure, thus having more convenient and rapid use; due to the design of the supporting frame structure, the folding chair sling or the folding hammock has high compression ratio, can greatly save the occupied space after folding, reduces the transportation cost and improves the market competitiveness.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a foldable support frame in an unfolded state according to embodiment 1 of the present invention;

fig. 2 is a side view of the foldable support stand according to embodiment 1 of the present invention in an unfolded state;

fig. 3 is a front view of the foldable support stand according to embodiment 1 of the present invention during unfolding or folding;

fig. 4 is a schematic perspective view of the foldable support frame of embodiment 1 of the present invention in the process of folding or unfolding;

fig. 5 is a schematic perspective view of the foldable support frame of embodiment 1 of the present invention in the process of folding or unfolding;

fig. 6 is a schematic perspective view of the foldable support frame of embodiment 1 of the present invention in a folded state;

fig. 7 is a front view of the foldable support stand of embodiment 1 of the present invention in a folded state;

fig. 8 is a partial structural schematic view of the foldable support frame in the folding process or the unfolding process according to embodiment 1 of the present invention;

fig. 9 is another partial structural schematic view of the foldable support stand according to embodiment 1 of the present invention;

fig. 10 is another partial structural schematic view of the foldable support stand according to embodiment 1 of the present invention during the folding or unfolding process;

fig. 11 is a front view of the folding hammock of embodiment 2 of the present invention;

fig. 12 is a front view of a folding chair lift according to embodiment 3 of the present invention.

Reference numerals: a main support bar 10; a main support bar 11; a support mechanism 20; a support mechanism 30; the first main lever 21; a first hinge rod 22; an auxiliary support structure 23; the second main bar 31; a second hinge rod 32; the auxiliary support structure 33; a diagonal stay 231; a chassis bar 232; a positioning pin 4; a collar 5; a first hinge 6; a second hinge 7; a perforation 8; a sliding sleeve 9; a pin hole 91; a mounting portion 101; a stopper portion 102; a hammock 200; a chair sling 300.

Detailed Description

In the description of the present invention, it should be noted that the term "degree of freedom" or "degree of freedom" refers to the number of unknown node variable bits on an effective structure node when analyzing a structure system. This is called "effective" because any point on a structural member should have the opportunity to have a degree of freedom, and we choose only to discuss the node shifts that are useful for analyzing the overall structure, while "unknown" because to solve for ease, we usually reduce the number of degrees of freedom as much as possible, thus subtracting the known shifts.

In the description of the present invention, it should be noted that the terms "middle point", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be further described with reference to the following specific examples.

Example 1

The present embodiment provides a foldable support frame, referring to fig. 1 to 11, the foldable support frame includes two sets of support mechanisms, a support mechanism 20 and a support mechanism 30, wherein one set of support mechanism 20 includes a main support rod 10, a first main rod 21, a first hinge rod 22 and an auxiliary support structure 23 for performing an auxiliary support function, one end of the first main rod 20 is slidably connected to the main support rod 10, and two ends of the first hinge rod 22 are respectively hinged to the main support rod 10 and the first main rod 21; the first main bar 21 is slidable along the main support bar 10 and fixed at a predetermined position so that the support mechanism 20 is in an unfolded state or a folded state; wherein, the supporting mechanism 20 and the supporting mechanism 30 are movably connected through respective main supporting rods.

The supporting mechanism 20 and the supporting mechanism 30 of the embodiment can be fixed in the unfolded state and the folded state, and after the supporting frame is folded, the occupied space can be saved, the storage and the storage are convenient, and meanwhile, the occupied space for transportation is saved, so that the transportation cost is reduced; in addition, for current support frame structure, the support frame of this embodiment is folded and is not related to the dismouting of spare part with the expansion in-process, consequently expand and more convenient, swift when folding, accord with modern's consumption and life theory more.

Referring to the drawings, fig. 1 and 2 are schematic structural diagrams of the foldable support frame of the present embodiment in an unfolded state, fig. 3, 4 and 5 are schematic structural diagrams of an unfolding process or a folding process of the foldable support frame of the present embodiment, and fig. 6 and 7 are schematic structural diagrams of the foldable support frame of the present embodiment in a folded state.

In this embodiment, the two support mechanisms are symmetrical structures, and the support mechanism 30 includes a main support rod 11, a second main rod 31, a second hinge rod 32, and an auxiliary support structure 33, wherein the main support rod (10, 11), the first main rod 21, the first hinge rod 22, the second main rod 31, and the second hinge rod 32 are straight rods. The first main bar 21 and the second main bar 31 are respectively hinged at predetermined positions near one end of the main support bars (10, 11). In the unfolded state, the first hinge rod 22 and the second hinge rod 32 are respectively supported below the first main rod 21 and the second main rod 31, when a downward acting force is applied to the first main rod 21 and the second main rod 31, the ends of the first main rod 21 and the second main rod 31 respectively slide to the other ends close to the main support rods (10 and 11) along the main support rod 10, the support frame is switched to the folded state, and then the main support rods (10 and 11) are folded through the movable connection of the two support frames, so that the support frame is folded.

With continued reference to fig. 1-8, in one embodiment, the auxiliary support structure 23 includes at least one diagonal brace 231 and at least one undercarriage brace 232, one end of the undercarriage brace 232 is hinged to the main support bar 10, and two ends of the diagonal brace 231 are movably connected to the first main bar 21 and the undercarriage brace 232, respectively. The diagonal brace 231 and the bottom frame rod 232 are straight rods, in the unfolded state, the bottom frame rod 232 and the main support rod 10 are respectively attached to the ground, and the diagonal brace 231 is used for supporting the first main rod 21 and preventing torsional deformation in the using process. Meanwhile, in the process of unfolding and folding the support frame, the inclined support rod 231 is used for pushing the bottom frame rod 232 to unfold and pulling the bottom frame rod 232 to fold, so that the linkage effect is achieved.

Further, the auxiliary support structure 23 includes two diagonal support rods 231 and two bottom frame rods 232, the two diagonal support rods 232 are symmetrically disposed on two sides of the first main bar 21, the two bottom frame rods 232 are symmetrically disposed on two sides of the main support bar 10, each diagonal support rod 232 is connected to one bottom frame rod 232 on the same side, where "on the same side" refers to being located on a single side of the first main bar 21 or on a single side of the main support bar 10. The diagonal support rods 232 and the underframe rods 232 are arranged in pairs, respectively, such that the auxiliary support structure 23 is a structure symmetrical with respect to the first main bar 21 or the main support bar 10. The diagonal brace 232 and the underframe bar 232 arranged in pairs provide symmetrical supporting force for the first main bar 21, so that the first main bar 21 is prevented from deviating towards one side in the using process to influence the stability of the supporting frame.

Further, the hinge point between the base frame rod 232 and the main support rod 10 is located between the end of the first hinge rod 22 and the end of the first main rod 21, so that the structure of the support mechanism 20 is more compact in the unfolded state and the folded state, the compression ratio of the folding bracket is improved, and the space occupied by the support bracket in the folded state is further saved. Of course, in other alternative embodiments, the hinge point of the undercarriage bar 232 with the main support bar 10 may also be provided between the end of the first hinge bar 22 and the main support bar 11.

Further, with continued reference to fig. 1 and fig. 2, in the unfolded state, the undercarriage bars 232 are perpendicular to the main supporting bar 10 and the first main bar 21, respectively, that is, the undercarriage bars 232 are perpendicular to the plane of the main supporting bar 10 and the first main bar 21. So that the main support bar 10 and the two bottom frame bars 232 at both sides form a cross structure, which makes the support frame more stable when unfolded against the ground.

In this embodiment, the inclined strut 231 and the first main rod 21, and the inclined strut 231 and the bottom frame rod 232 are connected by a movable connection structure, respectively, the movable connection structure enables the inclined strut 231 to rotate around a connection point, and the inclined strut 231 can deflect at an angle relative to the rotation plane. This swing joint structure for the bracing frame of this embodiment is under folded condition, and diagonal brace 231, chassis pole 232 can hug closely main tributary vaulting pole 10, thereby has further improved the compression ratio of support frame. Specifically, one end of the diagonal brace 231 can be rotated both along the plane defined by the first main bar 21 and the main support bar 10 and outward, where "outward" refers to a direction outside the plane defined by the first main bar 21 and the main support bar 10. The other end of the diagonal brace 231 can rotate along the plane defined by the undercarriage bar 232 and the main support bar 10, and can also rotate along the direction in which the undercarriage bar 232 and the plane defined by the main support bar 10 are at a predetermined angle, which enables the diagonal brace 231 to be more smoothly pulled or pushed by the undercarriage bar 232, the predetermined angle being related to the position at which the articulating mechanism is disposed.

In one embodiment, referring to fig. 9, the above-mentioned movable connection structure comprises: the positioning pin 4 is fixed, the collar 5 is sleeved on the collar 4, the first hinge part 6 is fixedly arranged in the circumferential direction of the collar 5, the second hinge part 7 is fixed, the second hinge part 7 is hinged with the first hinge part 6, the rotating directions of the first hinge part 6 and the second hinge part 7 and the extending direction of the positioning pin 4 are arranged at a preset angle, the preset angle enables the inclined strut 231 to be smoother when the bottom frame rod 232 is pulled or pushed, the bottom frame rod 232 can be tightly attached to the main strut rod 10 in a folded state, the compression ratio of the strut is improved, and the preset angle is related to the position of the bottom frame rod 232 and the position of the rotating structure.

Further, taking the movable connection structure between the diagonal brace 231 and the first main rod 21 as an example, the positioning pin 4 is vertically fixed at a predetermined position of the first main rod 21, the lantern ring 5 is sleeved on the positioning pin 4, the lantern ring 5 can freely rotate along the circumferential direction of the positioning pin 4, the first hinge portion 6 is convexly arranged in the circumferential direction of the lantern ring 5, the first hinge portion 6 is provided with a through hole 8, wherein the extending direction of the through hole 8 is perpendicular to the extending direction of the positioning pin 4. The end of the diagonal rod 231 is fixedly provided with a second hinge portion 7, the second hinge portion 7 comprises two extending arms, the two extending arms are opposite and are respectively provided with a through hole 8, wherein the first hinge portion 6 is arranged between the two extending arms of the second hinge portion 7 in a penetrating manner, and a pin shaft is connected with the second hinge portion 7 and the first hinge portion 6 through the through holes 8, so that the first hinge portion 6 and the second hinge portion 7 are hinged and can rotate relative to the pin shaft. The collar 5 allows the diagonal brace 231 to rotate relative to the positioning pin 4 on the first main lever 21, and the extending direction of the through hole 8 is perpendicular to the extending direction of the positioning pin 4, so that the first hinge part 6 and the second hinge part 7 can rotate in the direction perpendicular to the extending direction of the positioning pin 4. That is, the diagonal brace 231 can be rotated along the plane of the first main lever 21 while being also rotated outward.

In this embodiment, the two end portions of the diagonal rod 231 are respectively and fixedly provided with the second hinge portion 7, and the rotational connection structure between the diagonal rod 231 and the bottom frame rod 232 is similar to the movable connection structure between the diagonal rod 231 and the first main rod 21, except that during the folding and unfolding processes of the support frame, the diagonal rod 231 applies a pushing force or a pulling force to the bottom frame rod to push the bottom frame rod 232 to support or pull the bottom frame rod 232 to fold, so that in order to make the pushing or pulling process smoother, the through hole 8 of the first hinge portion of the circumferential collar disposed on the bottom frame rod 232 should form a predetermined angle with the extending direction of the positioning pin, so that the diagonal rod 231 can smoothly unfold the bottom frame rod 232.

In this embodiment, only one movable connection structure is taken as an example, and certainly in other alternative embodiments, the movable connection structure may also be another movable connection structure that can provide 3 degrees of freedom, which is not described herein again.

Further, with continued reference to fig. 8, a mounting portion 101 is disposed at a predetermined position of the main supporting rod 10, and the bottom frame rod 232 is hinged to the main supporting rod 10 through the mounting portion 101, wherein the mounting portion 101 is provided with a limiting portion 102 for limiting a rotation range of the bottom frame rod 232 in a direction away from a sliding end (a sliding sleeve 9 described below) of the first main rod 21. The mounting portion 101 enables the undercarriage bar 232 to gradually move toward the main support bar 10 during the folding of the support frame; in the unfolded state, the inclined strut 231 applies a pushing force to the bottom frame rod 232, and the mounting portion 101 provides a fixing force through the limiting portion 102, so that the bottom frame rod 232 is fixed under the combined action of the inclined strut 231 and the mounting portion 101, and the stability of the support frame is ensured.

Specifically, the mounting portion 101 has an L-shaped structure, an opening of the L-shaped structure is disposed in a manner of being slid toward the sliding sleeve 9 of the main support bar 10, an end of the bottom frame bar 232 is hinged in the L-shaped opening structure, and the L-shaped structure limits a rotation range of the bottom frame bar 231. When folded, the end of the first main bar 21 slides towards the end of the main support bar 10, and the diagonal support bar 231 pulls the bottom bar 232 to rotate close to the main support bar 10. When the main support rod 10 is unfolded, the end of the first main rod 21 slides away from the end of the main support rod 10, and the inclined support rod 231 pushes the bottom support rod 232 to rotate to a position 90 ° to the main support rod 10, and is fixed in this position by the inclined support rod 231 and the mounting part 101.

Further, referring to fig. 6, 7, 8, 10, the first main lever 21 is slidably connected to the main support lever 10 by a sliding sleeve 9, wherein the sliding sleeve 9 is further provided with a locking structure by which the first main lever 21 is respectively locked in the unfolded state. In this embodiment, the locking structure is a structure in which a locking pin is matched and connected with a pin hole, wherein a locking pin is protruded at a predetermined position of the main support rod 10, the locking pin is fixed inside the main support rod 10 by an elastic member such as a spring, the sliding sleeve 9 is provided with a pin hole 91 corresponding to the locking pin, and when the first main rod 21 slides to the predetermined position, the locking pin is inserted into the pin hole 91 of the sliding sleeve 9, so as to lock the first main rod 21 at the predetermined position. When a force is applied to the lock pin to retract the lock pin into the main support bar 10, the locking is released, so that the main support bar 21 can be slid to adjust the state. The locking structure may further include an operation button provided on the sliding sleeve 9 for operating the locking pin to facilitate unlocking in the locked state. Of course, in other embodiments, the locking structure may also be a riveted structure, such as a screw-threaded structure screwed into the pin hole 91 of the sliding sleeve 9, and the rotating screw-threaded structure is snapped into the main support rod 10 to achieve locking. Wherein, locking structure not be used for the restriction the utility model discloses a protection scope can select according to actual production demand, no longer gives unnecessary details here.

Further, the supporting mechanism 30 is movably connected with the supporting mechanism 20 by means of hinge or plug connection. In one embodiment, the main support bar 10 is hingedly connected to the secondary main support bar 11, such as by a hinge at the connection O between the main support bar 10 and the secondary main support bar 11. The support mechanism 30 and the support mechanism 20 are connected into a whole in a hinged mode, and the support frame is also integrated after being folded and stored, so that the support frame is convenient to fold, unfold and move integrally.

When the support frame is used for hanging a hanging chair or a hammock, the individual weight, height or length of the support mechanism (20, 30) is relatively large, and the operation difficulty is large when the support frame is folded or unfolded integrally for users with small strength. Therefore, in one embodiment, the support mechanism 30 and the support mechanism 20 are movably connected by plugging. That is, the main support bar 10 and the main support bar 11 are connected by a plug-in structure at the connection point O. Specifically, near the junction O, one of the main support rods (10, 11) has a slightly smaller radial dimension, so that the smaller radial dimension can be inserted into the other at the junction O and locked by a locking pin structure, which is referred to as a locking pin and pin hole structure between the sliding sleeve 9 and the main support rod 10, and will not be described herein.

Plug-in connection makes supporting mechanism 30, supporting mechanism 20 can at first part through grafting structure when folding, and the rethread is folded both and is accomodate, when needs expand the support frame, also can at first expand supporting mechanism 30 and supporting mechanism 20 respectively, expands the back respectively and carries out plug-in connection with both again, has reduced folding and the degree of difficulty that expands, and plug-in connection's mode makes the utility model discloses an operation of support frame is easier, and is more friendly to the user that the power is little.

The support frame in this embodiment can be used to hang a carrying part for supporting a human body in an unfolded state, such as a hanging chair or a hammock, and specifically, a hanging part for hanging the hammock or the hammock is further provided at a predetermined position of the first main rod 21 and the second main rod 31 for hanging the hammock or the hammock.

Referring to fig. 6 and 7, which are schematic structural views of the supporting frame of this embodiment in a folded state, the first hinge rod 22 of this embodiment is folded between the main supporting rod 10 and the first main rod 21, the second hinge rod 32 is folded between the main supporting rod 11 and the second main rod 31, and the auxiliary supporting structure 23 and the auxiliary supporting structure 33 largely embrace the main supporting rod 10 and the main supporting rod 11, so that the supporting frame of this embodiment is approximately a plate-shaped structure after being folded. The supporting frame of the embodiment greatly improves the compression ratio, saves the space occupied by transportation, and greatly saves the transportation cost.

Example 2

The present embodiment provides a foldable hammock, comprising the foldable support frame of embodiment 1 and a carrying part for supporting human body structure, see fig. 11, wherein the carrying part of the present embodiment is a hammock 200, and the hammock 200 is suspended from the first main rod 21 and the second main rod 31.

Example 3

The present embodiment provides a folding chair lift, comprising the foldable support frame of embodiment 1 and a carrying part for supporting human body structure, see fig. 12, wherein the carrying part of the present embodiment is a chair lift 300, and the chair lift 300 is suspended from the first main bar 21 and the second main bar 31.

The above disclosure is only illustrative of the preferred embodiments of the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. It should be understood that these examples are only for illustrating the present invention, and are not intended to limit the scope of the present invention. In practical applications, the improvement and adjustment made by those skilled in the art according to the present invention still belong to the protection scope of the present invention.

Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. a foldable support frame, is characterized in that, comprises at least two groups of support mechanisms,

The support mechanism includes a main support rod, a first main rod, a first hinge rod and an auxiliary support structure that plays an auxiliary supporting role, one end of the first main rod is slidably connected to the main support rod, and the Two ends of the first hinge rod are respectively hinged to the main support rod and the first main rod; the first main rod can slide along the main support rod and be fixed at a predetermined position so that the The support mechanism is in an unfolded or folded state;

Wherein, the two groups of the support mechanisms are movably connected by respective main support rods.

2 . The foldable support frame according to claim 1 , wherein the auxiliary support structure comprises at least one diagonal strut and at least one base frame rod, and one end of the base frame rod is hinged to the main frame. 3 . A support rod, two ends of the diagonal support rod are respectively movably connected with the first main rod and the underframe rod.

3 . The foldable support frame according to claim 2 , wherein the auxiliary support structure comprises at least two diagonal struts and at least two bottom frame rods, and the two diagonal struts are symmetrically arranged on the first and second sides. 4 . On both sides of a main rod, the two underframe rods are symmetrically arranged on both sides of the main support rod, and each of the diagonal support rods is connected with one of the underframe rods on the same side.

4 . The foldable support frame according to claim 2 or 3 , wherein the hinge point of the bottom frame rod and the main support rod is located between the end of the first hinge rod and the first main support rod. 5 . between the ends of the rod.

5 . The foldable support frame according to claim 2 or 3 , wherein, in the unfolded state, the bottom frame rods are respectively perpendicular to the main support rod and the first main rod. 6 .

6 . The foldable support frame according to claim 2 or 3 , wherein the diagonal strut and the first main rod or the bottom frame rod are connected by a movable connection structure, and the movable The connecting structure enables the diagonal strut to rotate about the connection point and the diagonal strut to deflect angularly relative to this plane of rotation.

7 . The foldable support frame according to claim 2 , wherein a predetermined position of the main support rod is provided with a mounting portion, and the bottom frame rod is hinged to the mounting portion through the mounting portion. 8 . In the main support rod, wherein the installation part is provided with a limit part for limiting the rotation range of the base rod in the direction away from the sliding end of the first main rod.

8 . The foldable support frame according to claim 1 , wherein the first main rod is slidably connected to the main support rod through a sliding sleeve, wherein the sliding sleeve is further provided with a locking structure, and the sliding sleeve is further provided with a locking structure. 9 . The locking structure locks the first main rod in the deployed state.

9 . The foldable support frame according to claim 1 , wherein the movable connection between the two groups of the support mechanisms is hinge connection or plug connection. 10 .

10. A folding device, characterized in that it comprises the foldable support frame according to any one of claims 1-9, and a bearing portion for supporting a human body structure, wherein the bearing portion is hung on the A support frame, wherein the bearing part is a hammock or a hanging chair.