Patent ID: 12185831

DETAILED DESCRIPTION OF THE INVENTION

Depicted inFIGS.1-10is a folding frame. The folding frame100comprises a base1, a plurality of support legs2hinged around the base1, a plurality of extension support bars3hinged on the support legs2and capable of folding in relation to the support legs2, and a locking mechanism4mounted inside the base1and capable of locking the unfolded support legs2. To use the frame, unfold the support leg2in relation to the base1to support the base1, and unfold the extension support bars3in relation to the support legs2and extend them for support. Specifically, the locking mechanism4can lock the unfolded support legs2to avoid unexpected folding of the support legs2and guarantee safety of use. To fold the frame for storage, firstly unlock the locking mechanism4so that the extension support bars3can be retracted for folding. And then, the extension support bars3are folded in relation to the support legs2. The support legs2are folded bottom up in relation to the base1, so that the product size is reduced after folding for convenient transportation.

A plurality of gear racks7are fixed inside the base1. Both sides of each gear rack7are configured with vertically distributed first teeth part71. Both sides of the upper end of the support leg2are configured with circularly distributed second teeth part20. The upper end of the support leg2is positioned between two gear racks7, the second teeth part20of the support leg2mesh with the first teeth part71of the gear rack7, and each support leg2can be folded and unfolded independently in relation to the base1. During operation, when the locking mechanism4can lock the unfolded support legs2, the gear rack7can also lock the support leg2, so as to avoid unexpected folding of the support leg2, and guarantee safety of use. The gear rack7also provides support to the support leg2, so that the folding frame is stably supported after unfolding, and can provide stronger support. Moreover, with the addition of the gear racks7, each support leg2can be folded and unfolded independently in relation to the base1. The support legs2are not linked to each other, and will not be driven by each other. This design can avoid failure of folding the whole frame due to one stuck support leg2, and can guarantee smooth folding of each support leg2without interference and convenient use.

The section of the gear rack7is in the shape of a right angle. Thus the gear rack7can touch and mesh with the two neighboring support legs2through the vertically distributed first teeth part71on both sides, while ensuring smooth folding of each support leg2, no interference and convenient use.

When the support legs2are unfolded in relation to the base1, the support legs2are fixed inside the base1through the locking mechanism4to avoid unexpected retraction of the support legs2in relation to the base1to guarantee safety of use, and to guarantee stable support of the folding frame to provide strong support. Specifically, the locking mechanism4comprises a pull rod41mounted inside the base1, capable of moving up and down, a spring42configured outside the pull rod41and abutting the base1, and a plurality of locking blocks43hinged inside the base1and flexibly connected to the outside of the upper end of the pull rod41. The pull rod41is pushed upward under the elastic force of the spring42to force the end portion of the locking block43into the lock slot21of the upper end of the support leg2, so as to guarantee stable fixation of the support leg2outside the base1, and stable support provided by the support legs2unfolded in relation to the base1. The lower end of the pull rod41is extended outside the lower end of the base1. By pulling the pull rod41downward to force the end portion of the locking block43to leave the lock slot21on the upper end of the support leg2, the locking can be released. At this point, the support leg2can be folded in relation to the base1. The folding and unfolding of the folding frame are very easy, bringing great convenience to users.

The base1comprises a base seat11and a cover plate12covering the base seat11, wherein, the cover plate12is locked with the base seat11through screws.

Specifically, the base1comprises a base seat11and a cover plate12covering the base seat11. The base seat11is configured with a main mounting slot111extending from its upper end face downward for mounting the pull rod41and a plurality of first branch mounting slots112and second branch mounting slots110located outside the main mounting slot111. The pull rod41is fitted inside the main mounting slot111. The locking block43is hinged inside the first branch mounting slots112. The outside of the base seat11is configured with a plurality of intercommunicating holes113communicated to the first branch mounting slots112and the second branch mounting slots110. The gear rack7is fitted inside the second branch mounting slots110. The first teeth part71of the gear rack7is exposed inside the hole113. The cover plate12covers the upper end of the gear rack7. The upper end of the support leg2is hinged inside the hole113through the pin shaft22. Because the hole113is communicated to the second branch mounting slots110, the second teeth part20of the support leg2can mesh with the first teeth part71of the gear rack7. The bottom of the main mounting slot111is configured with a sink slot114. The spring42is installed inside the sink slot114. The upper end of the spring42abuts the pull rod41. The lower end of the spring42abuts the bottom of the sink slot114.

Both sides of the locking block43are formed with a round convex column431, and the locking block43is hinged with the base1through the round convex column431, and can swing up and down inside the base1. Specifically, the round convex column431of the locking block43is hinged with the groove body configured on the inner wall of the branch mounting slots112, so that the locking block43can swing up and down inside the base1.

The end portion of the locking block43is configured with a hinge slot432. The two sides of the locking block43are configured with a slide bar hole433going through the hinge slot432. The outside of the upper end of the pull rod41is configured with a plurality of hinge portions401. The side face of the hinge portion401is configured with a through axle hole402. The hinge portion401is installed inside the hinge slot432on the end portion of the locking block43. The axle hole402of the hinge portion401is fitted with a shaft. The end portion of the shaft goes through the slide bar hole433, and can slide inside the slide bar hole433. When the pull rod41is pushed upward under the elastic force of the spring42, the hinge portion401drives the end portion of the locking block43to swing downward through the shaft, forcing the end portion of the locking block43into the lock slot21on the upper end of the support leg2, thus realizing the locking function. When the pull rod41is pulled downward, the hinge portion401slides inside the slide bar hole433of the locking block43through the shaft, driving the end portion of the locking block43to swing upward within a sufficient space, so that the end portion of the locking block43leaves the lock slot21of the upper end of the support leg2, thus realizing the unlocking function.

The lower end of the pull rod41is configured with a flexible pull ring410. The lower end face of the base1is configured with sphere surface slots101. The upper end of the pull ring410is configured inside the sphere surface slot101and abuts the sphere surface slot101. When it is needed to fold up the folding frame100, just pull down the pull ring413to release the locking state. The operation is very convenient.

The section of the upper end of the pull rod41is in the shape of a cross. The outside of the upper end of the pull rod41has a hinge portion401flexibly connected to the locking block43.

The number of the support legs2is four. Each support leg2is hinged with an extension support bar3. The support leg2has a containing groove23to contain the retracted extension support bar3.

In summary, the folding frame of the present invention is additionally configured with a locking mechanism4and a gear rack7. Specifically, the upper end of the support leg2is positioned between two gear racks7. The second teeth part20of the support leg2mesh with the first teeth part71of the gear rack7. Each support leg2can be folded and unfolded independently in relation to the base1. In operation, when the locking mechanism4can lock the unfolded support legs2, the gear rack7can also lock the support leg2, so as to avoid unexpected folding of the support leg2, and guarantee safety of use. Moreover, the gear rack7provides support to the support leg2, so that the folding frame can be stably supported after unfolding to provide stronger support. Moreover, with the addition of the gear racks7, each support leg2can be folded and unfolded independently in relation to the base1. The support legs2will not be driven by each other. This design can avoid failure of folding the whole frame because of one stuck support leg2, and guarantee smooth folding of each support leg2without interference and therefore provides more convenience.

Depicted inFIG.11is an outdoor chair, which comprises the above folding frame100and a chair cloth6configured on the upper end of the folding frame100. The number of the support legs2is four. The number of the extension support bar3is four, wherein two bars are long extension bars, and the other two bars are short extension bars. The chair cloth6is in the shape of a hopper. The four corners of the chair cloth6are respectively connected to and fixed with the upper ends of the extension support bars3.

As the folding frame100used by the outdoor chair has been clearly described above, it is not repeated herein. The outdoor chair features a simple structure and can be quickly and conveniently folded through the folding frame100. The size after folding is small and is suitable for transportation.

Depicted inFIG.12is an outdoor table, which comprises the above folding frame100and a table cloth5configured on the upper end of the folding frame100. The number of the support legs2is four. The number of the extension support bars3is four. Their lengths are the same. The four corners of the table cloth5are connected to and fixed on the upper ends of the extension support bars3through the connecting blocks51.

As the folding frame100used by the outdoor table has been clearly described above, it is not repeated herein. The outdoor table features a simple structure and can be quickly and conveniently folded through the folding frame100. The size after folding is small and is suitable for transportation.